Circuit board cleaning agent and preparation method thereof

The invention belongs to the technical field of cleaning agents and relates to a circuit board cleaning agent and a preparation method thereof. The circuit board cleaning agent comprises, by weight, 50-80 parts of cyclohexane, 10-30 parts of diacetone alcohol, 1-5 parts of diethylene glycol monobutyl ether and 5-20 parts of anhydrous ethanol. The circuit board cleaning agent can fast remove oil stain, scolding tin and rosin, can guarantee a good cleaning rate and good cleaning effects, belongs to a low-toxicity and eco-friendly cleaning agent and produces small damage on the human body. The preparation method has simple processes, utilizes easily available raw materials, has simple preparation processes and a low production cost and is conducive to general popularization application.

Hand turnover mechanism

This invention discloses a manual overturn unit including a shaft fixed at both sides of a LC TV display screen, a fixed frame matching the shaft, a bolt, a nut, a disk spring and a flat pad, in which, the fixed frame is set with a cut slot and is divided into a fixed part and a moving part by the slot, a first hole is set on the fixed frame of internal end of the slot matching to the shaft, a second hole is set on the frame of the external end of the slot, the bolt sleeves on the second hole, the nut is screwed on the front end of the bolt, the disk spring and the flat pad sleeve on the bolt and is extruded between the nut and the side wall of the fixed frame.

Vehicle fault diagnosis grading processing method based on big data and program product

The invention discloses a vehicle fault diagnosis grading processing method and program product based on big data, the method corresponds to a vehicle fault diagnosis grading processing table, the vehicle fault diagnosis grading processing table is continuously optimized and updated according to big data analysis and user feedback, the vehicle fault diagnosis grading processing table comprises fault types and fault levels, faults are defined by adopting quantitative indexes based on big data and an expert system, fault types are classified according to continuous iteration logic of the big data, fault levels comprise a first-level fault, a second-level fault, a third-level fault, a fourth-level fault and a fifth-level fault, and the method comprises the steps that operation data generated in the operation process of a vehicle are collected; based on the vehicle fault diagnosis grading processing table and the operation data, fault classification and fault grading are carried out on the ...

Hand turnover mechanism

This invention discloses a manual overturn unit including a shaft fixed at both sides of a LC TV display screen, a fixed frame matching the shaft, a bolt, a nut, a disk spring and a flat pad, in which, the fixed frame is set with a cut slot and is divided into a fixed part and a moving part by the slot, a first hole is set on the fixed frame of internal end of the slot matching to the shaft, a second hole is set on the frame of the external end of the slot, the bolt sleeves on the second hole, the nut is screwed on the front end of the bolt, the disk spring and the flat pad sleeve on the boltand is extruded between the nut and the side wall of the fixed frame.

Electric turnover mechanism

The invention discloses an electric turnover mechanism, comprising a planetary wheel reducing motor, a worm wheel and worm transmission mechanism and a mechanism output shaft; the output of the planetary wheel reducing motor is linked with the worm wheel and the worm transmission mechanism; the worm output shaft and the mechanism output shaft are arranged in the same axis line; a first friction part is fixed at the output end of the worm wheel output shaft along the circumferential direction; a second friction part is fixed at the input end of the mechanism output shaft along the circumferential direction; two ends of a third friction part are arranged in the same axis line and are respectively connected with the first friction part and the second friction part along the circumferential direction. By adopting the structure, the electric turnover mechanism requires no more self-locking mechanisms and brake devices; furthermore, the whole friction mechanism has no clearance and the impact ...

Hardware printing ink cleaning agent and preparation method thereof

The invention belongs to the technical field of cleaning agents and especially relates to a handware printing ink cleaning agent and a preparation method thereof. The handware printing ink cleaning agent comprises, by weight, 1-5 parts of MF-CL, 0.5-3 parts of MF-EH, 2-10 parts of sodium dodecyl benzene sulfonate, 1-5 parts of sodium tripolyphosphate, 1-5 parts of anhydrous sodium metasilicate, 0.5-3 parts of sodium silicate and 70-95 parts of purified water. The handware printing ink cleaning agent can fast remove indissolvable cured printing ink adhering to a printing ink spraying device, can guarantee a good cleaning rate and cleaning effects, has small corrosivity to the printing ink spraying device, and does not contain inflammable and explosive ingredients. The handware printing ink cleaning agent and purified water can be mixed into a liquid without precipitates according to any ratios. The handware printing ink cleaning agent belongs to a low-toxicity and eco-friendly cleaning agent ...

Optical glass water-based non-phosphate detergent

The invention relates to the technical field of glass surface detergent, and in particular relates to optical glass water-based non-phosphate detergent which is prepared from the following raw materials in percentage by weight: 10-20% of sodium hydroxide, 2-8% of monoethanolamine, 1-2% of iso-tridecanol polyoxyethylene ether, 3-10% of sodium gluconate and the balance of pure water. The non-phosphate detergent disclosed by the invention has the characteristics of being free from phosphate in formula, friendly to environment and human body, obvious in cleaning effect and low in both price and cost.

New energy automobile automatic slope parking method and system, storage medium and equipment

The invention provides an automatic slope parking method and system for a new energy vehicle, a storage medium and equipment, and the method comprises the steps: obtaining vehicle information, and judging whether the vehicle is in a parking state or not through a preset rule according to the vehicle information; if yes, vehicle position information is obtained, and the gradient state of the vehicle is judged through a preset method according to the vehicle position information; according to the vehicle position information and the gradient state, braking force information needed by the vehicle is obtained through a preset formula corresponding to the gradient state; and the braking force information is sent to an electronic hydraulic braking system, so that the electronic hydraulic braking system brakes wheels according to the braking force information, and the vehicle is automatically parked on the slope. The problems that in the prior art, the cost of achieving automatic slope parking ...

A SYSTEM AND METHOD FOR ALGAE COUNT DATA INPUTTING VIA SPEECH RECOGNITION AND DATA SHEET GENERATION

Abstract The invention provides a method for algae count data inputting via speech recognition and data sheet generation, the system comprises a voice inputting device, a speech recognition unit, a data comparison unit, a report data sheet output unit, a data sheet generation unit and an information feedback device. In the invention, the highly developed speech recognition technology is adopted to make the technician dictate the species' names, cell numbers or corresponding operation commands in order to rapidly input enumeration data, automatically output the report by program and maximally reduce the subsequent workload of the technician. The database of algae species' name is convenient for the user to supplement the contents based on actual conditions and provide the possibility for user customization by updating the database.

Thread electrode

The utility model discloses a thread electrode, this thread electrode be including the base, even there is the screw rod on the base, be equipped with the multistage thread on the screw rod respectively, be equipped with between each section thread and keep away the vacancy, the thread divide into the three -section, be first section thread, second section thread, third section thread respectively. Use this thread to carry out rough machining, finish machining to the screw hole on the mould respectively, still can carry out the truing in case of necessity, can effectively guarantee the precision of processing back thread mould.

Large-strain lead-free piezoelectric ceramic complex and preparation method thereof

The invention discloses a large-strain lead-free piezoelectric ceramic complex and a preparation method thereof. According to the large-strain lead-free piezoelectric ceramic complex and the preparation method thereof disclosed by the invention, a multi-layer overlapping complex of two compounds is prepared by adopting an electronic ceramic process, except solid solutions are respectively formed on interfaces of the two compounds, the respective components at other parts of the two compounds can not be changed, and respective Curie temperatures and electrostrictive strains are both kept; moreover, as the solid solutions are formed on the interfaces to generate a buffer belt or a mutual restraining region, the advantages of the two components are exerted, and the amount of electrostrictive strain electric field is reduced; compared with a mode of simply adhering two ceramics, the connecting mode is firm and is capable of exerting the respective advantages of the two ceramics.

Complete vehicle high-voltage interlocking system and vehicle

According to the whole vehicle high-voltage interlocking system and the vehicle, a high-voltage connector and second resistors are connected in parallel and then connected in series to form a high-voltage interlocking loop chain, the resistance values of the second resistors are at least partially different from each other, and the high-voltage interlocking loop chain is connected with a first resistor of an internal loop of a low-voltage interlocking interface of a whole vehicle controller in series. When the whole vehicle is started, the high-voltage interlocking loop chain, the first resistor and the direct-current power supply are connected in series, and the interlocking state of each high-voltage interlocking connector can be obtained by comparing the voltage at the two ends of the first resistor with a mapping table of threshold values in a whole vehicle controller. And at least the position of the high-voltage interlocking connector corresponding to the second resistors of which ...

Soaking cleaning agent for optical glass and preparation method thereof

The invention relates to the technical field of a cleaning agent, and particularly relates to a soaking cleaning agent for optical glass and a preparation method thereof. The soaking cleaning agent comprises the following raw materials in percentage by weight: 3-8% of sodium hydroxide, 8-15% of anhydrous sodium sulphate, 2-6% of complexing agent, 1- 3% of wetting agent, 1-5% of triethanolamine and the balance of pure water, wherein the complexing agent is one of tetrasodium EDTA (ethylene diamine tetraacetic acid), organic phosphonate, hydroxy carboxylic acid salt or a compound complex, and the wetting agent is one of ethyl-glucoside, polyether modified silicone oil, polyether modified polysiloxane or a polyether modified polydimethylsiloxane polymer. The soaking cleaning agent for the optical glass, provided by the invention, can be used for completely removing white dots from the optical glass, effectively avoids corroding the optical glass, has a good cleaning effect and is simple in ...

Power battery pack heating method and system, computer and readable storage medium

The invention provides a power battery pack heating method and system, a computer and a readable storage medium, and the method comprises the steps: arranging a PTC heating film in a power battery pack, arranging a temperature sensor on each battery monomer in the power battery pack, and enabling the PTC heating film to be in communication connection with the temperature sensors; historical temperature data and real-time temperature data collected by the temperature sensor are obtained, and a corresponding temperature prediction model is constructed based on a preset algorithm according to the historical temperature data and the real-time temperature data; and adjusting the working parameters of the PTC heating film through the temperature prediction model so as to adaptively heat the power battery pack through the PTC heating film. Through the mode, the working parameters of the PTC heating film can be accurately adjusted through the temperature prediction model, and then the PTC heating ...

Automobile thermal management method and system, computer and readable storage medium

The invention provides an automobile thermal management method and system, a computer and a readable storage medium, and the method comprises the steps: collecting actual temperature values generated by all automobile components in a current automobile in real time through a temperature control system, predicting a temperature change trend corresponding to each automobile component based on the historical temperature data and the automobile working condition model through a machine pre-learning algorithm; a predicted temperature value corresponding to the actual temperature value is calculated according to the temperature change trend, and a corresponding control instruction is generated according to the difference value between the actual temperature value and the predicted temperature value; and the control instruction is input into the heat management system, so that the working states of a heat pump layer, a heat pipe layer and a cooling layer in the heat management system are adjusted ...

Mold structure for manufacturing precise optical lens cone

The invention relates to a mold structure for manufacturing a precise optical lens cone. The mold structure comprises a base body, wherein a convex mold fixed plate, a lower mold base and an upper mold base are arranged on the base body in sequence; a lower mold cavity is formed in the lower mold base; an upper mold cavity covered with the upper mold cavity is formed in the upper mold base; a lower mold core is arranged in the lower mold cavity; an upper mold core is arranged in the upper mold cavity; the convex mold fixed plate is provided with a convex mold rod penetrating through the lower mold base to be inserted into the lower mold core; and a molding cavity is defined by the lower mold core, the upper mold core and the convex mold rod. The mold structure is characterized in that a lower positioning hole is formed in the lower mold core; the upper mold core is provided with an upper positioning hole coaxial and communicated with the lower positioning hole; and a coaxial positioning ...

Neon-tube storage and transport container

The utility model belongs to a neon tube storage and transport container which comprises a cylindrical casing, shock absorption objects with fixed shapes, and neon tubes which are integrated into a fascicular shape to be arranged in the casing, wherein at least two shock absorption objects are filled between the casing and each neon tube to cause each neon tube to be independently supported by the shock absorption objects and be respectively separated. With the novel structure, the utility model has the advantages of good anti-collision and anti-shock performance, high safety factor of storage and transport, compact structure, increased specific volume capacity, light weight and low cost. Thereby, the utility model is very favorable for the mechanization and the commercialization of the storage and the transport of the neon tubes.

Novel stereo sand control screen

The invention relates to a novel stereo sand control screen which comprises a central base tube, filters, a supporting tray and an overflowing protection sleeve, wherein a plurality of overflowing holes are formed in the wall of the central base tube and filled with the filters, the supporting tray is composed of a first tray body and a second tray body, and the first tray body and the second tray body are fixedly arranged at the two ends of the central base tube respectively; the overflowing protection sleeve is arranged outside the central base tube in a coaxial and sleeved mode, and the two ends of the overflowing protection sleeve are fixed on the central base tube through the first tray body and the second tray body respectively; a plurality of arched structures are arranged on the overflowing protection sleeve, and two screening grooves are formed by each arched structure and the overflowing protection sleeve. The novel stereo sand control screen is good in erosion resistance and ...

多功能护理床及其控制系统

A multifunctional nursing bed is composed of left and right boards for turning body over, left and right buttock boards, cover plate of bedpan, thigh board, shank board and supporting frame. Its control system consists of information input module, control module with single-chip microprocessor, and PLC control system.

Metal stripping agent and preparation method thereof

The invention relates to the technical field of stirring agents, in particular to a metal stripping agent and a preparation method thereof. The metal stripping agent is prepared from 6-ethyl-o-toluidine, tetrabutyl titanate, water, dibutyltin dilaurate, polyethylene wax and stearamide, wherein the 6-ethyl-o-toluidine is subjected to the grafting reaction, a reaction product is then mixed with the residual 6-ethyl-o-toluidine, the polyethylene wax and the stearamide, and thus the metal stripping agent is prepared. A reaction product obtained through coupling of the dibutyltin dilaurate and the 6-ethyl-o-toluidine is combined with the residual 6-ethyl-o-toluidine, a good stripping effect on protection glue on a metal surface is achieved, and the advantages that the stripping time is short and combustion is unlikely to occur are achieved. The preparation method of the metal stripping agent has the characteristics of being simple, low in production cost and suitable for mass production.

LCD screen switch of onboard TV set

The invention is LCD screen switch of vehicle TV set, it relates to retroflexion position detecting switch used in vehicle LCD TV set. It possesses a bottom connected with the LCD screen which is fixed to rotary bracket of output axes of motor; motor and insulated rigid fixation bracket are fixed to the TV set; the rotary bracket possesses a conducting boss which is the acting arm of the switch; two conducting boards which are two acting contactors are fixed to surface of movement track to conducting boss; two conducting boards are separately at two sides of the rotary bracket, they match with the conducting boss to limit rotary angle range of rotary bracket, the conducting boss resists one conducting board when the LCD screen is open, the conducting boss resists the another conducting board when the LCD screen is closed. It can resolve problem that the contact is unreliable, and precision of positioning is low of monomer-type switch.

Handware oil stain cleaning agent and preparation method thereof

The invention relates to the technical field of cleaning agents and especially relates to a handware oil stain cleaning agent and a preparation method thereof. The handware oil stain cleaning agent comprises, by weight, 70-90 parts of cyclohexane, 1-10 parts of acetone, 1-20 parts of isopropanol and 20-40 parts of ethylene glycol monobutyl ether. The handware oil stain cleaning agent comprises 70-90 parts by weight of cyclohexane and has high cyclohexane content. Cyclohexane replaces n-hexane to be used as a main solvent of the existing cleaning agent, can be dissolved in most organic solvents such as ethanol, ether, benzene and acetone, has good oil removal effects, can be dissolved in water difficulty, has effects of resisting rust of the handware, can be slowly volatilized at a normal temperature, is helpful for prolonging time of contact between the cleaning agent and a workpiece to be cleaned and improves cleanliness. In other raw materials used by the handware oil stain cleaning agent ...

Preparation method of PVDC (polyvinyl dichloride) composition for carbon molecular sieve

The invention discloses a preparation method of a PVDC (polyvinyl dichloride) composition for a carbon molecular sieve. The preparation method comprises the following steps of adding 160-165 parts (in parts by weight) of deionized water, 0.07-0.35 part of a dispersing agent, 0.2-0.5 part of an initiator, 0.04-0.25 part of a pH buffer regulator, 70-100 parts of a vinylidene chloride monomer and 0.05-0.25 part of nano filler into a polymerization kettle; ending polymerization reaction after carrying out polymerization reaction for 8-15 hours at 45-65 DEG C under stirring; removing residual monomers in vacuum, cooling and discharging, centrifuging, and drying to obtain the PVDC composition for the carbon molecular sieve. The preparation method disclosed by the invention has the advantages of simple process and good performance of prepared products.

Vehicle endurance mileage estimation method and system, storage medium and equipment

The invention provides a vehicle endurance mileage estimation method and system, a storage medium and equipment, and the method comprises the steps: obtaining the current state information of a vehicle in real time in a vehicle driving process, inputting the current state information to an initial endurance mileage model, and obtaining an initial endurance mileage; inputting the initial endurance mileage into a K-nearest neighbor regression model for further correction and determining the final endurance mileage of the vehicle, and constructing an initial endurance mileage model for learning and training by acquiring the current state information of the vehicle in real time; the method comprises the following steps: acquiring current state information, training the acquired current state information through an initial endurance mileage model to obtain an initial endurance mileage, then constructing a K-nearest neighbor regression model, and inputting the initial endurance mileage as a feature ...

Lithium-ion battery material and preparation method thereof

The invention discloses a lithium-ion battery material and a preparation method thereof. The constitution of the lithium-ion battery material is Li[Cu<3-x>Lix][Ti<3-x>B<1+x>]O12, wherein B represents Nb or Ta or Sb, and x is larger than or equal to 0.1 and smaller than or equal to 0.4. The preparation method comprises the following steps: mixing and dissolving lithium acetate and copper acetate in ethylene glycol monomethyl ether to prepare a solution; dissolving butyl titanate and niobium ethoxide or tantalum ethoxide or stibium ethoxide by taking the amount of the added copper acetate as a standard amount in absolute ethanol to prepare a solution; dropwise adding the former solution into the latter solution while stirring and then stirring again to obtain sol; adding ethanol diluted by deionized water while stirring to obtain gel; standing the gel and thermally treating to obtain the lithium-ion battery material. The lithium-ion battery material is stable in structure and insensitive ...

Glass optical lens paint remover and its preparation and use methods

The invention relates to the technical field of paint removers and especially relates to a glass optical lens paint remover and its preparation and use methods. The glass optical lens paint remover comprises, by weight, 5-20 parts of sodium hydroxide, 1-10 parts of triethanolamine, 5-25 parts of diethyleneglycolmonomethylether, 1-10 parts of N-methyl pyrrolidone and 55-70 parts of water. The glass optical lens paint remover is an alkaline system. In paint removal, the alkaline sodium hydroxide does not react with sodium silicate in glass so that water mist on the glass surface is avoided and paint removal effects are guaranteed. The glass optical lens paint remover is prepared from the raw materials having high boiling points, has good heat stability, can be heated to a high temperature of 70-100 DEG C and is conducive to fast paint removal. The preparation method of the glass optical lens paint remover has simple processes, needs less devices, utilizes easily available raw materials, can ...

Anti-counterfeiting packing material with directly molded latent image and preparation method thereof

The invention discloses an anti-counterfeiting packing material with a directly molded latent image and relates to an anti-counterfeiting packing material. A printing layer and/or a substrate is provided with a molded latent image which has recesses arrayed regularly. The invention also discloses a method for preparing the anti-counterfeiting packing material with the directly molded latent image, which comprises the following steps of: 1) engraving a latent image pattern on a steel roll; 2) generating a certain pressure between the steel roll and a printing roll by using a pressure regulating mechanism; and 3) delivering papers between the steel roll and the printing roll under the traction of a constant tension of a traction mechanism to obtain the anti-counterfeiting packing material with the molded latent image. Without an ink printing process requiring strict control or a more complicated track treatment process, the anti-counterfeiting packing material with the directly molded latent ...

LCD screen switch of vehicle mounted TV set

The invention is LCD screen switch of vehicle TV set, it relates to retroflexion position detecting switch used in vehicle LCD TV set. It possesses a bottom connected with the LCD screen which is fixed to rotary bracket of output axes of motor; motor and insulated rigid fixation bracket are fixed to the TV set; the rotary bracket possesses a conducting boss which is the acting arm of the switch; two conducting boards which are two acting contactors are fixed to surface of movement track to conducting boss; two conducting boards are separately at two sides of the rotary bracket, they match withthe conducting boss to limit rotary angle range of rotary bracket, the conducting boss resists one conducting board when the LCD screen is open, the conducting boss resists the another conducting board when the LCD screen is closed. It can resolve problem that the contact is unreliable, and precision of positioning is low of monomer-type switch.

Vehicle slope parking control method and system, storage medium and vehicle

The invention provides a vehicle hill-holding control method and system, a storage medium and a vehicle, and the method comprises the steps: when the vehicle enters a hill-holding state, obtaining a plurality of data parameters in a rotating speed ring for controlling a vehicle driving motor; calculating angular acceleration data of the driving motor according to the plurality of data parameters; and motor torque data of the vehicle are obtained, the angular acceleration data serve as predicted torque data to conduct data compensation on the motor torque data, the compensated motor torque data meet the predicted motor torque data, and the compensated motor torque data serve as input data of a rotating speed ring to control the slope holding state of the vehicle. According to the method, the angular acceleration of the driving motor is used as the predicted torque data to predict the torque value required by the vehicle, and the torque value is used as the compensation data to compensate ...

Prevent drawing stopper

The utility model discloses a prevent drawing stopper relates to piston assembling technical field in the pit, can solve piston cylinder and the fricative problem of piston cylinder inner wall. Prevent drawing stopper wholly is cylindricly, and at the in -process of the piston cylinder of packing the piston into, this prevent drawing stopper passes the hole on the piston cylinder, and prevent drawing stopper's a terminal surface supports the piston outer wall for sealing washer on the piston keeps same compression state when the hole through on the piston casing wall, prevent drawing stopper's the terminal surface shape to living the piston outer wall is the same with the piston surface shape, the installation of mainly used piston.

Preparation method of PVDC (polyvinyl dichloride) composition for spinning

The invention discloses a preparation method of a PVDC (polyvinyl dichloride) composition for spinning. The preparation method of the PVDC composition for the spinning comprises the following steps of carrying out a polymerization reaction on the following raw materials in parts by weight: 49 to 60 parts of deionized water, 20 to 30 parts of vinylidene chloride monomers, 3 to 9 parts of vinyl chloride monomers, 0.06 to 0.3 parts of initiator, 0.02 to 0.04 part of pH (potential of hydrogen) value buffer conditioning agent and 0.01 to 0.05 part of dispersing agent, after the reaction is carried out for 25 hours to 35 hours, terminating the polymerization reaction, separating out residual monomers in a vacuum manner, and cooling, discharging, centrifuging and drying an obtained material; adding 0.5 to 0.8 part of plasticizer and 0.05 to 0.2 part of lubricating agent into the dried material, and mixing and curing an obtained mixture, so as to obtain a PVDC composition product for the spinning ...

Transmission system used for electric vehicle

The invention relates to the field of electric vehicle power transmission, in particular to a transmission system used for an electric vehicle. The transmission system used for the electric vehicle comprises a transmission, a differential mechanism and a half axle, wherein the transmission comprises an input shaft, a low-gear gear pair, a high-gear gear pair, a low-gear electromagnetic clutch and a high-gear electromagnetic clutch; the driven gear of the low-gear electromagnetic clutch and the driven gear of the high-gear electromagnetic clutch are respectively fixedly arranged on two ends of the shell of the differential mechanism along the circumference; the low-gear gear pair and the high-gear gear pair are used for transferring the power of the input shaft to the differential mechanism in a speed change and bending moment mode; the differential mechanism and the half axle are used for causing the power transferred by a low-gear driven gear and a high-gear driven gear to be differential ...

Dry-type varnish and preparation method thereof

The invention belongs to the technical field of insulation varnish and relates to dry-type varnish and a preparation method thereof. The dry-type varnish comprises, by weight, 30-50 parts of acrylic resin, 10-30 parts of amino resin, 1-10 parts of rosin-modified phenolic resin, 0.5-5 parts of an epoxy curing agent, 20-50 parts of a mixture of dicyclohexyl phthalate and acetone, and 5-20 parts of a mixture of ethylene glycol monobutyl ether and n-butanol. The dry-type varnish does not contain poisonous, harmful, flammable and explosive dangerous chemicals such as xylene and belongs to low-toxicity insulation varnish. The waste liquid of the dry-type varnish can be degraded by microbes and thus the dry-type varnish belongs to eco-friendly insulation varnish. The dry-type varnish has small environmental pollution and a fast drying rate, can be dried in 2h, is conducive to energy saving, improves production efficiency and has high economic and social benefits. The preparation method has the ...

Ground building monitoring method during shield tunneling based on communication technology

The invention discloses a ground building and structure monitoring method based on a communication technology during shield tunneling, and the method comprises the steps: S1, building a monitoring system which comprises a ground monitoring module, a shield tunneling machine module, a satellite information transmission module and a ground video recording module; s2, transmitting a video of a satellite to a ground monitoring module through a satellite information transmission module; s3, acquiring a ground monitoring video of the building structure through a ground video recording module; s4, performing position monitoring on the buildings in the video through a ground monitoring module to obtain real-time positions; and S5, transmitting the real-time position and the ground monitoring video to a shield tunneling machine module through a ground monitoring module. An operator can observe conveniently, real-time unified monitoring is achieved during shield tunneling and corresponding ground ...

Cryptomorphic acid conformity type completion fluid

A cryptomorphic acid chelated well-finishing liquid is proportionally prepared from clay stabilizer, inorganic salt, cryptomorphic acid, antibacterial agent and water. Its advantages are no pollution, no corrosion and high effect to improve and protect the oil bearing stratum.

Method for preparing clenbuterol hydrochloride aerosol of micropowder for inspiration

The invention discloses a method for preparing clenbuterol hydrochloride aerosol of micropowder for inspiration. The method comprises the following steps of sufficiently mixing one part of clenbuterol hydrochloride with 200-mesh lactose or mannitol according to a progressive dilution method, screening by a 60-mesh screen, and uniformly mixing; sufficiently mixing the other part of clenbuterol hydrochloride with 60-mesh lactose or mannitol according to the progressive dilution method; then, totally mixing, filling 3# capsules with the mixture to obtain the clenbuterol hydrochloride aerosol of micropowder for inspiration. The method is capable of improving the angle of repose, the content uniformity, deposition rate and other quality parameters in the prior art.

PVDC (polyvinyl dichloride) composition for spinning

The invention discloses a PVDC (polyvinyl dichloride) composition for spinning. The PVDC composition for the spinning comprises the following components in parts by weight: 20 to 30 parts of vinylidene chloride monomers, 3 to 9 parts of vinyl chloride monomers, 0.06 to 0.3 parts of initiator, 0.02 to 0.04 part of pH (potential of hydrogen) value buffer conditioning agent, 0.01 to 0.05 part of dispersing agent, 0.5 to 0.8 part of plasticizer, and 0.05 to 0.2 part of lubricating agent. The PVDC composition provided by the invention has favorable heat stability and spinning processing performance.

VCU control algorithm optimization method based on block chain and program product

The invention discloses a VCU control algorithm optimization method based on a block chain and a program product. The method comprises the steps that a VCU control algorithm in an initial state is generated, the VCU control algorithm is compiled into a smart contract, the smart contract is stored in the block chain, and the smart contract automatically executes the VCU control algorithm in the smart contract according to a preset rule; and based on the historical transaction data, the smart contract updates parameters of a VCU control algorithm in the smart contract, adjusts a strategy of the VCU control algorithm in the smart contract, and self-optimizes the VCU control algorithm in the smart contract. The method does not need to depend on expert experience, data volume and computing resources, and dynamic optimization and global optimization can be achieved.

Automatic rust-removing and cleaning machine with tracing wheel pair

An automatic rust-removing and cleaning machine with profiling wheel pair is composed of profiling-type rust-removing and cleaning units respectively for axle and dust-shielding plate seat. Said unitfor axle consists of gantry, walking mechanism, profiling mechanism, sylinder and cleaning frame. Said unit for dust-shielding plate seat is composed of vertical column, motor, cylinder, walking-profiing slots and slide axle. Its advantages are cleaning thoroughly, low energy consumption, high efficiency, and easy operation and maintenance.

Shallow lake vertical section observation device

The utility model relates to a monitoring device in the shallow lake section observation field, in particular to a shallow lake vertical section observation device. The shallow lake vertical section observation device comprises a fixed base plate, antiskid cones, a hollow sleeve tube, a bearing bar, a connecting rod, a mounting cross beam, a control module, a driver module, a fixed pulley, a steel wire rope, a sensor module and an aerovane. According to the shallow lake vertical section observation device, objects such as a steel plate are adopted to be fixedly placed, the device can be used stably under a certain wave condition, meanwhile, good mobility is kept, and the device can be mounted and moved according to needs. Due to the fact that the parts such as a sensor of the whole set of system are all common accessories on the market, the parts can be replaced and maintained conveniently. For the reason that a servo motor is used in the device for pulling the sensor module to make up-down ...

Electric turnover mechanism for vehicle-mounted liquid crystal television

The invention discloses an electric turnover device of vehicle-mounted liquid crystal television, comprising a motor fixing support, a direct-current speed-reduction motor, an axle sleeve, a damping block, a right fixing support, a right bearing, a plurality of external friction sheet, a plurality of friction sheet, a spring, a nut, a left shaft, a left bearing, a left fixing support, and an angle sensor. The friction force generated by the engagement between the damping block and the axle sleeve forms damping force, to confirm that in serious vibration, the motor turnover device will not damage speed-reduction gear and can avoid the swig of liquid crystal screen, to affect vision effect. The nut, spring, external friction sheets, internal friction sheets, and right fixing support form a constant-torque device, to provide flexibility to the electric turnover device in turnover process, therefore, the liquid crystal screen can automatically stop when meets hand or obstacle in turnover,to ...

Metal cleaning agent

The invention relates to the technical field of cleaning agents and concretely relates to a metal cleaning agent. The metal cleaning agent comprises, by weight, 1-5% of stearic acid, 1-5% of citric acid, 1-5% of lauric acid, 0.5-3% of sodium bicarbonate, 0.5-2% of chromic anhydride, 0.5-2% of sodium silicate, 1-4% of polyoxyethylene nonyl phenyl ether and the balance water. Through compounding of three different fatty acids such as stearic acid, citric acid and lauric acid, good rust removal effects are obtained. Chromic anhydride in the raw materials can effectively remove spots. Sodium bicarbonate and sodium silicate in the raw materials can remove oil and prevent corrosion. A metal part cleaned by the metal cleaning agent is not corroded and has no residue. The metal cleaning agent is environmentally friendly, has good safety, has no toxicity and no corrosivity, does not pollute the environment and is safe and stable.

Vehicle MOS transistor supervision method and device, medium and program product

The invention discloses a vehicle MOS transistor supervision method and device, a medium and a program product, a voltage stabilizing diode is arranged between a grid electrode and a source electrode of an MOS transistor, and the method comprises the steps that the current working state of the MOS transistor is monitored in real time; judging whether the current working state is abnormal or not; when the current working state is abnormal, working parameters of the MOS tube are adjusted; acquiring a historical working state of the MOS tube; analyzing the service life and the fault probability of the MOS tube based on the historical working state and the current working state; a processing suggestion is generated based on the analysis result. On the basis that the performance of the MOS tube is not affected, the MOS tube is effectively prevented from being ablated, and the effective and reliable protection effect on the MOS tube is achieved.

A computing and image correction method for light source color

A light source color calculation and image correction method is provided, which relates to a calculation and correction method of a light source during the identification and analysis of color images. The method comprises the following steps: normalizing the colority of each pixel in a color image; rapidly extracting a highlight area by a voting method based on the change gradient of pixels by using pure diffuse reflection or less mirror reflection with respect to the surrounding pixels, that is, the property of large similarity degree of the pixels; deducing the linear relationship between inverse intensity and colority and the representation and correction method of the light source color based on a simplified bidirectional reflectance function illumination model, so as to respectively project the colority values of the three channels of the pixels in the highlight area to spaces defined by the inverse intensity and the colority and thus to transform a three-dimensional space into a two-dimensional ...

Coating composition for protecting electronic components and circuit boards

The invention relates to a coating composition for protecting electronic components and circuit boards, which contains at least one bonding agent which can be cured at the temperature lower than 150 DEG C and higher than 80 DEG C, at least one reactive diluting agent, a curing catalyst and other agents which can be freely selected from a corrosion inhibitor, a defoaming agent, a flatting agent and a wetting agent, wherein the cycloaliphatic epoxy resin is used as the bonding agent, and the vinyl ether is used as the diluting agent. The coating for protecting circuit boards, which is provided by the invention, can simultaneously meet the requirements for high temperature resistance, heat and humidity resistance and high frequency resistance, has good mechanical properties and electrical insulating properties, and can meet the requirements for environmental protection.

Prevent torsional bumper shock absorber

The utility model provides a prevent torsional bumper shock absorber, including stiff end, spire and link, stiff end and link are fixed in respectively the both ends of spire, the spire includes the helical shape reed, the cross -section of reed is the quadrangle, the adoption cross -section is tetragonal reed, compares to be circular shape spring damper in traditional reed cross -section, and the twisting resistance is stronger, can guarantee consequently that instrument face very aligns with the brill in the pit.

Battery power management method and system, computer and readable storage medium

The invention provides a battery power management method and system, a computer and a readable storage medium, and the method comprises the steps: detecting a first remaining power corresponding to a large battery and a second remaining power corresponding to a small battery in a vehicle-mounted battery system in real time, judging whether a difference value between the first residual electric quantity and the second residual electric quantity is greater than a preset threshold value or not; if yes, a first working parameter generated by the large battery at the current moment and a second working parameter generated by the small battery at the current moment are obtained, and a charging and discharging strategy matched with the large battery is calculated according to the first working parameter and the second working parameter; and the charging and discharging strategy is transmitted to the BMS, so that the BMS adjusts a charging and discharging switch, an equalization switch and a pre-charging ...

Battery state estimation method

The invention provides a battery state estimation method, and the method comprises the steps: designing a deep neural network based on a hybrid physical model of a battery, arranging a comprehensive analysis layer between a hidden layer and an output layer of the deep neural network, and carrying out the comprehensive analysis of the output of the hidden layer, so as to fuse various physical characteristics and working principles of the battery. The training output results of all the models are verified and revised mutually, the trained battery state estimation models comprise an equivalent circuit model, a thermodynamic model and an aging model of the battery, and the battery estimation states which can be obtained at the same time comprise the residual capacity, the health state, the charging and discharging curve and the temperature distribution of the battery. According to the battery state estimation method provided by the invention, mutual verification and revision can be carried ...

Electric turnover mechanism

The invention discloses an electric turnover mechanism, comprising a planetary wheel reducing motor, a worm wheel and worm transmission mechanism and a mechanism output shaft; the output of the planetary wheel reducing motor is linked with the worm wheel and the worm transmission mechanism; the worm output shaft and the mechanism output shaft are arranged in the same axis line; a first friction part is fixed at the output end of the worm wheel output shaft along the circumferential direction; a second friction part is fixed at the input end of the mechanism output shaft along the circumferential direction; two ends of a third friction part are arranged in the same axis line and are respectively connected with the first friction part and the second friction part along the circumferential direction. By adopting the structure, the electric turnover mechanism requires no more self-locking mechanisms and brake devices; furthermore, the whole friction mechanism has no clearance and the impact ...

Anti-icing conductor tube composite structure

The invention discloses an anti-icing conductor tube composite structure. The anti-icing conductor tube composite structure comprises a surface casing and an outer layer conductor tube as well as an inner layer conductor tube; wherein the outer layer conductor tube is arranged outside the surface casing, the inner layer conductor tube is arranged between the outer layer conductor tube and the surface casing corresponding to ice region, the length of the inner layer conductor tube is less than the length of the outer layer conductor tube and is more than the thickness of the ice region, the thickness of the outer layer conductor tube is locally increased at the ice region, and annular part between the outer layer conductor tube and the inner layer conductor tube and the annular part between the inner layer conductor tube and the surface casing are all solidified by cement pouring. In the invention, the inner layer conductor tube and the surface casing are fixedly connected, the defect that ...

Electric drive system control method and system

The invention provides an electric driving system control method and system, and the method comprises the steps: calculating a driving parameter corresponding to a driving motor in a current vehicle according to a driving instruction, and outputting a current instruction corresponding to the driving motor through a PI controller; the corresponding expected voltage vector amplitude is calculated according to the driving parameters and the current instruction, and the maximum voltage vector amplitude capable of being used for driving a motor is calculated according to the real-time output voltage of a driving battery in the vehicle and the real-time on-off state of an inverter; judging whether the expected voltage vector amplitude is greater than the maximum voltage vector amplitude or not; if yes, it is judged that the vehicle enters an overmodulation mode, and adaptive adjustment is conducted on the expected voltage vector amplitude through a first modulation strategy contained in the overmodulation ...

BHC quick sleeve threaded joint

The invention discloses an BHC quick sleeve threaded joint which is composed of a connecting hoop and sleeve joints arranged at two ends of the connecting hoop. A conical pipe external thread gradually contracting from outside to inside is arranged on the external diameter of each sleeve joint, and each sleeve joint is provided with an external shoulder transition face and an external torque shoulder; a conical pipe internal thread gradually contracting from outside to inside and corresponding to the conical pipe external thread is arranged on the internal diameter of the connecting hoop, and the connecting hoop is provided with a tool withdrawal groove, an internal shoulder transition face and the internal torque shoulder sequentially. The BHC quick sleeve threaded joint has the advantages that compared with an API sleeve thread in the prior art, thread pitch and guide face angle are enlarged, and tooth height and effective thread length are increased, so that resistance to compression ...

Water-based glass cleaning agent and its preparation method and use in mobile phone lens cleaning

The invention belongs to the technical field of cleaning agents and relates to a water-based glass cleaning agent and its preparation method and use in mobile phone lens cleaning. The water-based glass cleaning agent comprises, by weight, 20-50 parts of potassium hydroxide, 2-10 parts of monoethanolamine, 10-30 parts of N-methyl pyrrolidone and 30-60 parts of purified water. The water-based glass cleaning agent has a fast cleaning rate and good cleaning effects, belongs to a low-toxicity and eco-friendly cleaner, and can produce small damage on the human body. The preparation method has simple processes, adopts easily available raw materials, can be prepared easily, has a low production cost and is conducive to general popularization application.

Large-diameter detachable piezoelectric deforming reflection mirror

The invention relates to a large-caliber demountable piezoelectric deformable mirror, which comprises a mirror surface, a pedestal and a piezoelectric actuator, and is characterized in that an elastic sheet is clamped between the mirror surface and the piezoelectric actuator, and the piezoelectric actuator is tightly supported against the elastic sheet without mechanical and gluing connections. The mirror also comprises a precise screw thread adjusting structure for adjusting the pretightening force or the distorting lens surface shape between the elastic sheet and the piezoelectric actuator. The piezoelectric actuator is not connected with the mirror surface directly, the piezoelectric actuator is easy to replace, and the deformable mirror is convenient to maintain; the optical processing of the mirror surface and membrane plating can be performed when the actuator is processed to shorten the manufacturing cycle of the deformable mirror; and the piezoelectric actuator is applicable to ...

Vehicle LCD electric turnover mechanism

An electric turnover mechanism of a vehicle display relates to a control mechanism used for fixing or placing the display. The invention provides an electric turnover mechanism of a vehicle display, which can solve the location problem of the opening and closing of two positions as well as has the advantages of small structure, low cost and high efficiency, etc. The invention is provided with a motor, a retarding mechanism, a degree wheel, a stop rod, a guide slot, a left fixed block and a right fixed block, a left fixing plate and a right fixing plate, a fixing skeleton for a display screen, a stationary shaft, an angle piece, a switch plate, a bolt and a spring. The motor is connected with the retarding mechanism; the degree wheel is arranged at a middle shaft of the retarding mechanism; one end of the stop rod is arranged at the guide slot; the other end is fixedly connected with the bolt; the left fixed block is fixed at the middle shaft of the retarding mechanism; the left fixing plate ...

GPT-based vehicle fault solution generation method and device

The invention discloses a GPT-based vehicle fault solution generation method and device, and the method comprises the steps: collecting a historical vehicle fault case and a corresponding solution, and constructing a corpus composed of unlabeled text data according to the historical fault case and the corresponding solution, pre-training of self-supervised learning is carried out on the corpus by utilizing a GPT technology, so that language rules and knowledge in the corpus are learned, and a fault solution generation model is obtained; obtaining feedback information of different types of vehicles on a generation result of the fault solution generation model, and performing fine adjustment on the fault solution generation model according to the feedback information to generate a customized fault solution generation model; and when it is detected that the vehicle breaks down, fault information is input into the customized fault solution generation model corresponding to the type to obtain ...

Vehicle performance parameter testing method and system

The invention provides a whole vehicle performance parameter testing method and system, and the method comprises the steps: obtaining whole vehicle parameters and part parameters of a target vehicle, and constructing a corresponding whole vehicle simulation model based on a first preset program according to the whole vehicle parameters and the part parameters; performing iterative simulation analysis on the whole vehicle simulation model through a second preset program to output corresponding optimal part combination parameters, and inputting the optimal part combination parameters into a preset whole vehicle test bench in which the target vehicle is arranged; and performing pre-calibration processing on the target vehicle through the optimal part combination parameters, and performing performance testing on the target vehicle after the pre-calibration processing through the preset whole vehicle test bench. According to the method, the vehicle can be effectively pre-calibrated, so that ...

Hardware water-based cutting fluid and preparation method thereof

The invention relates to the technical field of cutting fluid, in particular to hardware water-based cutting fluid and a preparation method thereof. The hardware water-based cutting fluid is prepared from polyacrylamide, N-butyl stannate, water, dibutyltin dilaurate, mercaptobenzothiazole, isopropanolamine, polyether ester, a sulfur-containing agent, tribasic acid, neodecanoic acid, self-emulsifying ester and sulfide aliphatic acid ester. N-butyl stannate subjected to hydrolysis reaction performs grafting reaction with polyacrylamide; reaction resultants of coupling N-butyl stannate with polyacrylamide can greatly improve stable performance of the hardware water-based cutting fluid. The hardware water-based cutting fluid has the advantages of excellent lubricating performance and excellent stable performance.

Automobile code writing method and system, computer and readable storage medium

The invention provides an automobile code writing method and system, a computer and a readable storage medium, and the method comprises the steps: receiving graphic information inputted by a user in real time, and carrying out the adaptive analysis processing of the graphic information, so as to extract a target element and a target parameter in the graphic information; based on a preset rule and a preset template, generating a corresponding document, a test case and a code through a GPT model according to the target element and the target parameter, wherein the document, the test case and the code correspond to the graphic information; and outputting the document, the test case and the code to a user terminal of a user, so that the user inputs the document, the test case and the code into the automobile through the user terminal. According to the mode, the corresponding code can be generated in real time according to the requirement of the user, meanwhile, a large number of computing resources ...

Traditional Chinese medicine composition for replenishing qi and blood and preparation method thereof

The invention discloses a traditional Chinese medicine composition for replenishing qi and blood. The traditional Chinese medicine composition comprises the following raw materials in parts by weight: 10-30 parts of corn cervi pantotrichum, 10-30 parts of American ginseng, 5-20 parts of chrysanthemum, 8-20 parts of Chinese yam, 5-15 parts of tuber fleeceflower stem, 5-15 parts of poria cocos, 5-15 parts of rehmanniae vaporata, 4-10 parts of dogwood, 3-12 parts of rhizoma alismatis, 5-15 parts of moutan bark, and 3-12 parts of wolfberry. According to the invention, American ginseng has the effects of replenishing qi and nourishing blood; rehmanniae vaporata has the effects of replenishing blood and enriching essence; corn cervi pantotrichum has the effects of tonifying kidney and strengthening muscles and bones; tuber fleeceflower stem has the effect of promoting blood circulation to remove meridian obstruction; dogwood and Chinese yam have the effects of nourishing kidney yi; moutan bark ...

Electric turnover mechanism for vehicle-mounted liquid crystal television

The invention discloses an electric turnover device of vehicle-mounted liquid crystal television, comprising a motor fixing support, a direct-current speed-reduction motor, an axle sleeve, a damping block, a right fixing support, a right bearing, a plurality of external friction sheet, a plurality of friction sheet, a spring, a nut, a left shaft, a left bearing, a left fixing support, and an angle sensor. The friction force generated by the engagement between the damping block and the axle sleeve forms damping force, to confirm that in serious vibration, the motor turnover device will not damage speed-reduction gear and can avoid the swig of liquid crystal screen, to affect vision effect. The nut, spring, external friction sheets, internal friction sheets, and right fixing support form a constant-torque device, to provide flexibility to the electric turnover device in turnover process, therefore, the liquid crystal screen can automatically stop when meets hand or obstacle in turnover, to ...

Method for preparing longhairy antenoron herb extract and longhairy antenoron herb particles

The invention discloses a method for preparing a longhairy antenoron herb extract and longhairy antenoron herb particles. The method comprises the following steps: cleaned longhairy antenoron herb is boiled in water and extracted for three times, extracting solutions are mixed, the mixture of the extracting solutions is heated and concentrated in a triple-effect concentrator until the relative density of the mixture is 1.05-1.10 at 60 DEG C, precipitation is removed after still standing, the mixture is subjected to triple-effect concentration again to obtain the longhairy antenoron herb extract, cane sugar, starch sugar and the longhairy antenoron herb extract are added in a mixing machine at the ratio of 5.64:1:1 to be mixed uniformly, and the mixture of the cane sugar, the starch sugar and the longhairy antenoron herb extract is pelletized, dried, granulated and sub-packaged in bags to obtain the longhairy antenoron herb particles.

Defogging detergent

The invention relates to the technical field of a detergent, and particularly relates to a defogging detergent which consists of the following raw materials in percentage by weight: 25-35 percent of isohexane, 15-25 percent of neo-hexane and 45-60 percent of hexamethyldisiloxane. Compared with the existing detergent, the defogging detergent disclosed by the invention can be used for cleaning oil dirt and fingerprints and replacing the detergents added with harmful substances, such as whellote gas n-hexane, acetone and the like; a product cleaned by the defogging detergent is free of white points, watermarks and fog, smooth, easy to wipe, clean and bright; and moreover, the detergent is high in volatilization speed, environment-friendly, safe and odorless.

Polyvinyl dichloride (PVDC) composition for carbon molecular sieve

The invention discloses a polyvinyl dichloride (PVDC) composition for a carbon molecular sieve. The PVDC composition comprises the following components in parts by weight: 160-165 parts of deionized water, 0.07-0.35 part of dispersing agent, 0.2-0.5 part of initiator, 0.04-0.25 part of pH buffer regulator, 70-100 parts of vinylidene chloride monomer and 0.05-0.25 part of nano filler. The PVDC composition has the advantage of good product performance.

Alga enumeration data pronunciation are typeeed and report generation system fast

The utility model provides an alga enumeration data pronunciation are typeeed and report generation system fast, the system includes: unit, report generation unit, information feedback equipment are filled in to voice -input device, speech recognition unit, comparing unit, statement. The utility model discloses use now very ripe speech recognition technique, realize the enumeration data through count person information such as order oral account kind name, quantity or corresponding operating instruction as agreed and type fast to through background program automatically output statement, the at utmost reduces count person later stage work load. The alga register passes through background database management, and the person of facilitating the use augments according to actual conditions, provides the possibility for using widely of whole system.

Device and method for purifying byproduct hydrogen chloride of trichloro ethylene

The invention discloses a device for purifying a byproduct hydrogen chloride of trichloro ethylene. The device comprises a trap, a scrubbing tower, a demister, a circulating tank, a circulating pump, a cooler, a receiving tank, a feed pump, an evaporator and a condenser, wherein the trap is sequentially connected with the scrubbing tower and the demister; the tower bottom liquid outlet of the scrubbing tower is connected with the inlet of the circulating tank; the outlet of the circulating tank is connected with the inlet of the circulating pump; the outlet of the circulating pump is sequentially connected with the circulating liquid inlets of the cooler and the scrubbing tower; and the outlet of the circulating pump is sequentially connected with the receiving tank, the feed pump, the evaporator and the condenser. The invention also discloses a method for purifying the byproduct hydrogen chloride of trichloro ethylene by using the device. The device and the method disclosed by the invention ...

Lightning rod installation positioning device

A lightning rod mounting and positioning device disclosed by the present invention comprises a steel chimney, the cambered surface side of the steel chimney is provided with a mounting rod, the mounting rod is concave, the steel chimney is provided with a driving assembly through the mounting rod, and the cambered surface of the steel chimney is provided with a positioning assembly through the driving assembly on the side of the mounting rod. The device has the beneficial effects that when the device is used, the lightning rod does not need to be hoisted by a crane for installation, the situation that the installation of the lightning rod is affected by the inclination of the lightning rod caused by the shaking generated by hoisting the lightning rod when the lightning rod is positioned is avoided, meanwhile, when the lightning rod is overhauled, only the motor needs to be installed at the bottom of the moving block again, and the maintenance is convenient. Therefore, the preparation time ...

Shallow lake longitudinal section observing device

The invention relates to a monitoring device in the field of shallow lake section observation, and particularly relates to a shallow lake longitudinal section observing device. The shallow lake longitudinal section observing device comprises a fixed base plate, an antislip cone, a hollow casing pipe, a bearing rod, a connecting rod, an installation cross beam, a control module, a driving module, a fixed pulley, a steel wire rope, a sensor module and an aerovane. The shallow lake longitudinal section observing device can be stably used under a certain wave condition by adopting fixing devices such as a steel plate, meanwhile keeps the good mobility, and can be installed and move as required. Because a sensor and the like of the whole set of system are commercially available common accessories, the shallow lake longitudinal section observing device is quite convenient to replace and maintain. According to the device, because a servo motor is adopted for dragging the sensor module to move ...

Electronic component pin bending device, circuit board production device and production method

The invention relates to the technical field of electronic component processing, and discloses an electronic component pin bending device which comprises a mounting plate, a bending mechanism and a bending mechanism. The shifting door comprises two supporting plates and an L-shaped jacking piece, and the two ends of the L-shaped jacking piece are installed on the side walls of the tops of the two supporting plates in a sliding mode correspondingly; the two ends of the rotating rod are rotationally connected to the inner walls of the bottoms of the two supporting plates correspondingly; the transmission wheel is synchronously connected with the rotating rod, and the arc-shaped outer wall of the transmission wheel is provided with a shifting foot which shifts towards the door shifting direction; the connecting rods are movably connected to the two sides of the top end of the shifting foot and provided with volute springs, and the ends of the connecting rods are provided with U-shaped contact ...

Demoulding structure of injection mold front mould elder generation

The utility model discloses a demoulding structure of injection mold front mould elder generation, including preceding template, the front mould inboard is equipped with front mould benevolence, front mould benevolence one side is equipped with the fixed plate, be equipped with the mold insert in fixed plate and the front mould benevolence, be connected with the runner plate on the fixed plate, template in the middle of the runner plate is equipped with on one side of preceding template, middle template one side is equipped with the third template, still be equipped with the spring that passes the fixed plate between runner plate and the preceding template, be equipped with the screens needle that passes the fixed plate in front mould benevolence or the preceding template, be equipped with template and the runner plate locking in the middle of making with the cooperation of screens needle when the injection mold compound die in third template and the middle template, and the lock sleeve ...

Breeding method of recessive white feather bantam germ plasm resource and supporting application thereof

A breeding method of recessive white feather bantam germ plasm resource includes: mating a recessive white hen and a mini type cock to produce F1 generation; selecting and mating a hen and a cock which carry recessive white feather gene and mini gene from the F1 generation to produce F2 generation of chicken; and selecting a recessive white feather bantam cock and a recessive white feather bantam hen from the F2 generation to set up a family; or includes: mating a recessive white cock and a mini type hen to produce F1 generation; selecting and mating a cock carrying recessive white gene and amini type hen from the F1 generation to produce F2 generation; and selecting a recessive white feather bantam cock and a recessive white feather bantam hen from the F2 generation to set up a family. Through family selection and individual selection, the productivity is improved and bantam germ plasm resource with the feature of recessive white feather is bred through propagation and group expanding.

Anti-icing conductor tube composite structure

The invention discloses an anti-icing conductor tube composite structure. The anti-icing conductor tube composite structure comprises a surface casing and an outer layer conductor tube as well as an inner layer conductor tube; wherein the outer layer conductor tube is arranged outside the surface casing, the inner layer conductor tube is arranged between the outer layer conductor tube and the surface casing corresponding to ice region, the length of the inner layer conductor tube is less than the length of the outer layer conductor tube and is more than the thickness of the ice region, the thickness of the outer layer conductor tube is locally increased at the ice region, and annular part between the outer layer conductor tube and the inner layer conductor tube and the annular part between the inner layer conductor tube and the surface casing are all solidified by cement pouring. In the invention, the inner layer conductor tube and the surface casing are fixedly connected, the defect that ...

Environment-friendly semi-water-based cleaning agent for ultrasonic cleaning process

The invention discloses an environment-friendly semi-water-based cleaning agent for an ultrasonic cleaning process, and belongs to the technical field of cleaning agents. The semi-water-based cleaning agent comprises the following components in parts by weight: 20-30 parts of a cosolvent; 10 to 20 parts of a compound surfactant; 1-2 parts of a chelating agent; 1-5 parts of an alkaline auxiliary agent; 1-5 parts of other auxiliary agents; and 100 to 120 parts of deionized water. The semi-water-based cleaning agent disclosed by the invention has good cleaning performance, is particularly suitable for an ultrasonic cleaning process, is low in foam, low in volatilization and high in safety in a cleaning process, and does not corrode a cleaned part.

Battery box of electric vehicle

The invention relates to the field of the battery system of an electric vehicle, and particularly relates to a battery box of an electric vehicle. The battery box comprises a battery box shell, wherein the shell is a rectangular box body; multiple battery pack jackets are arranged in the shell; each battery pack jacket is an open box body with holes on the four sides; an air channel of an air inlet and an air channel of an air outlet are arranged on the side surfaces of the two ends of the shell; an exhaust fan is arranged at the air-outlet air channel; the air channels of the air inlet and the air outlet both face the ground; a slave plate control system of a battery management system is arranged in the shell. The battery box provided by the invention has the beneficial effects of simple structure, low manufacturing cost, high safety and relatively high dustproof/waterproof grade and heat dissipation performance.

Recessive white feather green-shelled-egg bantam germ plasma resource cultivation method

Disclosed is a recessive white feather green-shelled-egg bantam germ plasma resource cultivation method. Green-shelled genes of green-shelled-egg chickens are introduced to recessive white feather bantam groups, recessive white feather genes, short-legged genes and the green-shelled genes are combined and homozygous by means of hybridization and test mating, a family is built on the basis, the groups are expanded in a breeding manner by the aid of family selection and individual selection, and recessive white feather bantam germ plasma resources with green-shelled-egg laying characteristics are cultivated. The cultivation method has the advantages that recessive white feather bantams are selected to improve the green-shelled-egg chickens, the green-shelled-egg chickens are changed into recessive white feather green-shelled-egg bantams, and the breeding problem of the green-shelled-egg chickens can be effectively solved. Short and small hens with small bodies are suitable for cage culture ...

Bearing fault diagnosis method driven by adaptive cascade dictionary

The invention relates to a bearing fault diagnosis method driven by an adaptive cascade dictionary. The method comprises the following steps: firstly, taking a dual-damping wavelet as an atomic model, searching an optimal parameter of the wavelet by adopting a correlation filtering algorithm, and carrying out dual-damping wavelet parameter optimization by adopting a particle swarm optimization algorithm to assist the correlation filtering method in considering that the calculated amount of the correlation filtering algorithm is large; and forming an initial wavelet parameter dictionary based on the optimal wavelet parameter combination. And then the initial dictionary is substituted into self-learning algorithm K singular value decomposition for secondary learning, local adjustment of atoms of the initial dictionary is realized, and a cascade dictionary is formed. The sparse reconstruction of the original vibration signal is realized by means of an orthogonal matching pursuit algorithm ...

Water-soluble no-clean soldering flux

The invention relates to a water-soluble no-clean soldering flux which comprises the following components in percentage by weight: 2.0-3.7% of crylic acid activator, 0.1-0.5% of surfactant, 1.5-5.0% of ester wetting agent, 2.0-15.0% of ester cosolvent, 0.05-1.0% of antioxidant, 0.03-0.5% of antifoaming agent, and the balance of deionized water. The soldering flux provided by the invention is scientifically designed and reasonably prepared, and has the advantages of good solderability and high insulation resistance, does not contain halogen or VOC (volatile organic compound) substance or need to be cleaned, is environment-friendly soldering liquid, has less possibility of combustion, and does not explode; and in the water-soluble no-clean soldering flux, the deionized water is utilized as solvent.

Elimination liquid of filter cake

A filtered cake removing liquid for preventing the gap of sieving pipe from being blocked by filtered cake is proportionally prepared from acid (HCl plus HF), washing penetrant, solvent-type organic substance, asphalt dissolving filter loss reducer, clay stabilizer, corrosion retarder, KCl and water.

Ramp parking starting assistance system of electric automobile

The invention relates to the field of an electric automobile, in particular to a ramp parking starting assistance system of the electric automobile. The ramp parking starting assistance system comprises an automobile speed collection module, a ramp gradient collection module, a brake collection module, an electric control unit and a motor control module, wherein signals of the automobile speed collection module, signals of the ramp gradient collection module and signals of the brake collection module are transmitted to the electric control unit; signal transmission is implemented between the electric control unit and the motor control module through CAN (Controller Area Network) communication; the automobile speed collection module is an automobile speed sensor; the ramp gradient collection module is a tilt angle sensor; the brake collection module is a signal collection device with a hand brake and a brake pedal. The system assists a driver in implementing safe and convenient parking starting ...

Heat pump air conditioner control method and system, computer and readable storage medium

The invention provides a heat pump air conditioner control method and system, a computer and a readable storage medium. The method comprises the steps that theoretical braking force is calculated, corresponding acceptable charging power is calculated according to the working state of a battery pack, and corresponding acceptable waste heat power is calculated according to the working state of a heat storage device; calculating a braking force distribution proportion matched with the theoretical braking force according to the acceptable charging power and the acceptable waste heat power; first braking force is calculated according to the theoretical braking force and the braking force distribution proportion, kinetic energy generated by the first braking force is converted into corresponding electric energy, waste heat generated by the vehicle is collected through a waste heat recovery device, and the electric energy and the waste heat are correspondingly stored in a battery pack and a heat ...

Traditional Chinese medicine composition for strengthening physique and improving immunity and preparation method thereof

The invention discloses a traditional Chinese medicine composition for strengthening physique and improving human immunity. The traditional Chinese medicine composition comprises the raw materials including red ginseng, astragalus membranaceus, white atractylodes rhizome, sinensis diels, radix paeoniae alba, rehmanniae vaporata, fructus corni and the like, wherein red ginseng and astragalus membranaceus as monarch drugs have the effects of tonifying qi and strengthening foundation; angelica sinensis, rehmanniae vaporata, radix paeoniae alba and turtle gel have the effects of replenishing and nourishing blood; white atractylodes rhizome, fructus corni, fried monkshood, Chinese yam, raspberry, the seed of Chinese dodder, alpinia oxyphylla, schisandra chinensis, jujube kernel, lotus seed flesh and poria cocos are used for comprehensively caring the organs including stomach, spleen, lung, heart, liver and kidney; morinda meat and corn cervi pantotrichum are used for mainly activating kidney ...

Anti-ferroelectric-relaxor-enhanced large-strain lead-free piezoelectric material and preparation method thereof

The invention discloses an anti-ferroelectric-relaxor-enhanced large-strain lead-free piezoelectric material and a preparation method thereof. The preparation method of the piezoelectric material comprises the following steps: respectively preparing powder of a compound A and a compound B by virtue of a conventional solid-phase synthesis process; weighting the powder of the compound A and the compound B at the ratio of the amount of substance of (0.5-2): 1, mixing the powder of the compound A and the compound B, carrying out ball milling for 4-12 hours by virtue of a zirconium oxide jar and milling balls under the condition that the ball-milling medium is absolute ethanol, finally drying, granulating and pressing into a green body; and carrying out conventional electronic ceramic firing process on the green body to prepare the anti-ferroelectric-relaxor-enhanced large-strain lead-free piezoelectric material, wherein the compound A is (1-x)Bi0.5Na0.5TiO3-xNa0.5K0.5TiO3, the compound B is ...

Vehicle adaptive control method and system, storage medium and vehicle

The invention discloses a vehicle adaptive control method and system, a storage medium and a vehicle, and the method comprises the steps: building a vehicle dynamics model, and describing the motion state and control input of the vehicle in an uncertain environment through the vehicle dynamics model; acquiring sensor data of the vehicle, and taking the sensor data as a state space of a deep reinforcement learning algorithm; setting a target function of the vehicle in a moving process, and taking the target function as a reward function of a deep reinforcement learning algorithm; setting a deep neural network as a value function or a strategy function of a deep reinforcement learning algorithm, inputting optimal or suboptimal control input according to the state space and the reward function, and taking the optimal or suboptimal control input as control output of a VCU vehicle adaptive control algorithm; and carrying out online or offline training and updating on the deep neural network ...

Breeding method of recessive white feather bantam germ plasm resource and supporting application thereof

A breeding method of recessive white feather bantam germ plasm resource includes: mating a recessive white hen and a mini type cock to produce F1 generation; selecting and mating a hen and a cock which carry recessive white feather gene and mini gene from the F1 generation to produce F2 generation of chicken; and selecting a recessive white feather bantam cock and a recessive white feather bantam hen from the F2 generation to set up a family; or includes: mating a recessive white cock and a mini type hen to produce F1 generation; selecting and mating a cock carrying recessive white gene and a mini type hen from the F1 generation to produce F2 generation; and selecting a recessive white feather bantam cock and a recessive white feather bantam hen from the F2 generation to set up a family. Through family selection and individual selection, the productivity is improved and bantam germ plasm resource with the feature of recessive white feather is bred through propagation and group expanding ...

Anti-counterfeiting packing material with directly molded latent image and preparation method thereof

The invention discloses an anti-counterfeiting packing material with a directly molded latent image and relates to an anti-counterfeiting packing material. A printing layer and/or a substrate is provided with a molded latent image which has recesses arrayed regularly. The invention also discloses a method for preparing the anti-counterfeiting packing material with the directly molded latent image, which comprises the following steps of: 1) engraving a latent image pattern on a steel roll; 2) generating a certain pressure between the steel roll and a printing roll by using a pressure regulating mechanism; and 3) delivering papers between the steel roll and the printing roll under the traction of a constant tension of a traction mechanism to obtain the anti-counterfeiting packing material with the molded latent image. Without an ink printing process requiring strict control or a more complicated track treatment process, the anti-counterfeiting packing material with the directly molded latent ...

Vehicle LCD electric turnover mechanism

An electric turnover mechanism of a vehicle display relates to a control mechanism used for fixing or placing the display. The invention provides the electric turnover mechanism of the vehicle display, which can solve the location problem of the opening and closing of two positions as well as has the advantages of small structure, low cost, high efficiency, etc. The invention is provided with a motor, a retarding mechanism, a degree wheel, a stop rod, a guide slot, a left fixed block and a right fixed block, a left fixing plate and a right fixing plate, a fixing skeleton for a display screen,a stationary shaft, an angle piece, a switch plate, a bolt and a spring. The motor is connected with the retarding mechanism; the degree wheel is arranged on a middle shaft of the retarding mechanism;one end of the stop rod is arranged on the guide slot; the other end is fixedly connected with the bolt; the left fixed block is fixed on the middle shaft of the retarding mechanism; the left fixingplate ...

Automobile technology planning and decision-making method and system based on GPT network model

The invention provides an automobile technology planning and decision-making method and system based on a GPT network model, and the method comprises the steps: obtaining target text data, and constructing an unlabeled corpus according to the target text data; constructing a GPT network model, and controlling the GPT network model to perform unsupervised pre-training on the basis of a corpus so as to learn and obtain a general language model; constructing a labeled target data set, and determining each target input and target output in the target data set; controlling the general language model to perform supervision fine tuning processing on the basis of the target data set so as to learn and obtain a target language model; actual requirements are input into the target language model, a corresponding feedback result is output, specifically, pre-training and fine tuning are carried out on a large amount of text data related to an automobile, automatic understanding and response to information ...

Optical glass cleaner

The invention relates to the technical field of optical glass cleaners and particularly relates to an optical glass cleaner composed of the following raw materials in percentage by weight: 1-6% of ammonium dodecyl sulfate, 10-20% of sodium hydroxide, 1-6% of sodium gluconate, 1-6% of sodium silicate, 1-10% of monoethanolamine and the balance of pure water. The optical glass cleaner has the characteristics of good cleaning effect, no damage to lenses and environment friendliness.

High-efficiency soldering flux welding process

The invention discloses a high-efficiency soldering flux welding process. The high-efficiency soldering flux welding process comprises the following steps: S1, inserting a welding element into a PCB (Printed Circuit Board); s2, high-efficiency soldering flux is poured into a wave-soldering soldering flux tank, and the soldering flux is pre-sprayed until the soldering flux is continuously and uniformly sprayed out; s3, setting welding parameters in wave soldering; and S4, the PCB where the welding element is inserted is placed on a conveying belt, and the processes of soldering flux spraying, preheating, wave soldering and cooling are automatically carried out. The efficient soldering flux comprises the following raw material components in parts by weight: 5-15 parts of hydrogenated rosin; 5 to 15 parts of fumaric rosin; 3-6 parts of an organic acid activator; 0.5 to 2 parts of a surfactant; 2-5 parts of a coalescing agent; 2-5 parts of other auxiliary agents; and 85-100 parts of a solvent ...

A plastic mould structure for promoting product quality

The utility model relates to a plastic mould structure for promoting product quality, including the die carrier be equipped with the cavity in the die carrier be equipped with on the die carrier with the communicating opening of cavity be equipped with the first thimble board and the second thimble board that can move about in the cavity be equipped with central core on the second thimble board, the center core passes first thimble board with the opening extends to the die carrier upper surface be equipped with on the first thimble board be used for ejecting the thimble of center core top mould pressing product be equipped with between first thimble board and the second thimble board and be used for the adjustment the stop screw of first thimble board and second thimble board position be equipped with lower mould benevolence outside the core upper end of center lower mould benevolence top is equipped with mould benevolence, the utility model discloses can be directly on the injection molding ...

Energy recovery method and system, storage medium and electric vehicle

The invention provides an energy recovery method and system, a storage medium and an electric vehicle, and relates to the technical field of electric vehicles, the method comprises the following steps: obtaining a plurality of navigation routes and traffic information of each navigation route according to a starting position and a preset destination position of a vehicle; calculating an optimization target of the navigation route according to the traffic information of each navigation route; obtaining the current state information of the vehicle, selecting the weight coefficient of the optimization target according to the current state information, scoring each navigation route according to the optimization target and the weight coefficient, and screening out an optimal route; and dividing the optimal route into a plurality of sub-road sections, and determining the mode and intensity of energy recovery according to the traffic information of each sub-road section, thereby solving the technical ...

Dynamic oil well sand control screen tube and manufacturing method thereof

The invention relates to a dynamic oil well sand control screen tube which comprises a perforated tube, a plurality of support rods arranged on the external surface of the perforated tube axially and parallelly along the perforated tube, a filtering material winding or coating the perforated tube and the support rods and an external protecting tube sleeved on the filtering material. A manufacturing method of the dynamic oil well sand control screen tube comprises the following steps of: welding the support rods on the external surface of the perforated tube axially and parallelly along the perforated tube; winding or coating the filtering material on the perforated tube provided with the support rods through welding; and sleeving the perforated tube into the external protecting tube to obtain the dynamic oil well sand control screen tube. The filtering material of the dynamic oil well sand control screen tube manufactured by the invention has certain distortion space, when produced sand ...

Automatic rust-removing and cleaning machine with tracing wheel pair