除雪车

Fault prediction processing method, device and equipment for industry field network

The invention provides a fault prediction processing method, device and equipment for an industry field network, and the method comprises the steps: carrying out the supplementation of a training sample through a new labeled sample generation method and/or an abnormal data labeling method, and obtaining a labeled fault sample set of the industry field network; fault classification model training is carried out on the tagged industry field network fault sample set, a target classification model is obtained, and the target classification model is used for carrying out fault category prediction on abnormal data and outputting a fault type; according to the embodiment of the invention, the labeled sample data and a large amount of unlabeled data are comprehensively utilized, the labeled sample data are expanded by using a new labeled sample generation method and an abnormal data labeling method to obtain more sufficient labeled training sample data, and then the classifier is trained to construct ...

Heterogeneous city underlying surface disaster-bearing body risk exposure space simulation method

The invention discloses a heterogeneous city underlying surface disaster-bearing body risk exposure space simulation method, which comprises the following steps of: firstly, acquiring multi-source heterogeneous data of a city and preprocessing to obtain preprocessed data; calculating risk exposure parameters of the urban underlying surface disaster-bearing body according to the preprocessed data, and constructing a risk exposure feature set of the urban underlying surface disaster-bearing body; then, collecting grid sample data of a disaster-bearing body on the underlying surface of the city, and constructing a disaster-bearing body reset cost exposed grid sample; and finally, according to the risk exposure feature set of the urban underlying surface disaster-bearing body and the disaster-bearing body reset cost exposure grid sample, performing heterogeneous risk exposure space simulation of the urban underlying surface disaster-bearing body by adopting a random forest algorithm. According ...

IMAGE COLOR CORRECTION METHOD, DEVICE, STORAGE MEDIUM AND COMPUTER EQUIPMENT

The present invention relates to an image color correction method, a device, a storage medium, and a computer equipment: first, collecting an original image of a standard color card, acquiring an optimal color correction matrix of the original image by means of pixels in the original image and by calculating according to a particle swarm optimization algorithm, and importing the calculated optimal color correction matrix into an image processing process; according to the preset image processing process, collecting an image of the standard color card and processing the collected image, and using the optimal color correction matrix during the processing process to perform color correction on the collected image so as to generate a standard color card image. The present invention uses a particle swarm optimization algorithm to calculate an optimal color correction matrix of an original image, not being restricted by the derivability of a chromatic aberration evaluation function, and thus acquiring ...

Robot mapping method and device and related equipment

The invention provides a robot mapping method and device and related equipment, and the method comprises the steps: collecting the original wiring harness characteristics of a target region, and enabling the target region to be a moving region of a robot; identifying the original wire harness features to obtain an identification result; under the condition that the target area is determined to comprise a mirror surface according to the identification result, correcting the original wiring harness characteristics; and generating a map of the target area according to the corrected original wire harness characteristics. According to the method, the original wiring harness characteristics are identified, and the original wiring harness characteristics are corrected under the condition that the identification result indicates that the target area comprises the mirror surface, so that the interference problem of the mirror surface on the original wiring harness characteristics can be reduced, ...

INTERNET OF THINGS RECOGNITION IDENTIFIER METHOD AND APPARATUS, AND TERMINAL DEVICE

The present invention provides an Internet of things identifier recognition method and apparatus, and a terminal device. The Internet of things identifier recognition method comprises: obtaining an Internet of things identifier to be recognized; converting the Internet of things identifier into a polygon pattern; recognizing the polygon pattern by using a pre-trained pattern classification model, so as to obtain a recognition result of an encoding category of the Internet of things identifier; and parsing the Internet of things identifier according to the encoding category of the Internet of things identifier.

Variable current compensation circuit and method for improving load shedding transient response

The invention discloses a variable current compensation circuit for improving load shedding transient response. The circuit is characterized by comprising a current feedback unit and a current compensation unit of a voltage converter, wherein the current feedback unit is used for generating a reference current Iref so as to judge the magnitude of an inductive current output by the voltage converter, and controlling the conduction time of an upper tube and a lower tube based on the judgment so as to adjust the output voltage; and the current compensation unit is used for identifying the reference current Iref, generating a charging current Icharge based on the reference current Iref, and compensating the reference current Iref based on the charging current Icharge. The method is simple, the number of added elements is small, and adjustable control over the PWM unit is achieved based on gradual change of the compensation current.

Copper electroplating additive with high dispersing capacity for PCB through hole copper plating and application of copper electroplating additive

The invention relates to an electrocoppering additive with high dispersing capacity for PCB through hole copper plating and application of the electrocoppering additive. The electro-coppering additive comprises a basic plating solution, a leveling agent, an accelerator and an inhibitor. The leveling agent is a pyridine quaternary ammonium salt leveling agent, and the concentration of the leveling agent is 1-20 mg/L. The accelerator is prepared from 3-sulfydryl-1-sodium propane sulfonate, 3, 3-sulfur bis (1-propanesulfonate), sodium dithiodipropane sulfonate, sodium 2, 3-dimercaptopropanesulfonate or sodium thiazolinyl dithiopropanesulfonate, and the content of the accelerator is 1 to 10 mg/L. The inhibitor is a triblock polymer of polyethylene glycol, polypropylene glycol, epoxyhexane or propane oxide, and the content of the inhibitor is 150-250 mg/L. The copper electroplating additive is used for copper electroplating of through holes under the conditions of high current density and high ...

DCDC converter

The DCDC converter comprises a first low-side driving sub-circuit, a second low-side driving sub-circuit, a first high-side driving sub-circuit, a second high-side driving sub-circuit, a first low-side power switch tube, a second low-side power switch tube, a first high-side power switch tube and a second high-side power switch tube. When the signal accessed by the low-side driving circuit is changed, the first low-side driving signal is changed before the second low-side driving signal, and the first low-side driving signal which is changed firstly is accessed by the high-side dead zone circuit. When the signal accessed by the high-side driving circuit is changed, the first high-side driving signal is changed before the second high-side driving signal, and the first high-side driving signal which is changed firstly is accessed by the low-side dead zone circuit. A part of dead zone time is covered by the delay time between the first low-side driving signal and the second low-side driving ...

Resource scheduling method and related equipment

The invention provides a resource scheduling method and related equipment. According to the resource scheduling method, a process L1 running in the electronic equipment can request a binder from a process L2, and under the condition that a binder thread pool corresponding to the process L2 does not have an idle binder, the electronic equipment can improve the priority of a binder thread in the binder thread pool and can also improve the CPU frequency. Under the condition, the electronic equipment can preferentially schedule the CPU resources to the emergency tasks, so that the problems such as jamming are avoided.

Basin rainstorm flood disaster-bearing body reset cost remote sensing simulation method

The invention discloses a watershed rainstorm flood disaster-bearing body cost remote sensing simulation method, which comprises the following steps: collecting time sequence remote sensing data, meteorological index data, underlying surface risk exposure data, rainstorm flood disaster loss and other data, and adopting threshold segmentation, spatial superposition, data aggregation and other methods to simulate the watershed rainstorm flood disaster-bearing body cost; extracting parameter features such as flood inundation, rainstorm weather disaster, underlying surface disaster-bearing body risk exposure degree and the like, constructing a rainstorm flood disaster-bearing body reset parameter feature set, and unifying the set to a 30m-resolution grid; according to flood insurance nuclear disaster data and on-site quadrat historical investigation and survey data, a 30m spatial resolution disaster-bearing body placement cost sample set is constructed based on a spatial statistical analysis ...

Long-voyage small unmanned underwater vehicle capable of being moored

The invention discloses a long-voyage small underwater unmanned vehicle capable of being anchored, and belongs to the technical field of underwater unmanned vehicles, the long-voyage small underwater unmanned vehicle comprises a bow section, an anchor section is arranged at one end of the bow section, a floating adjustment section is arranged at one end of the anchor section, a load section is arranged at one end of the floating adjustment section, an electric control section is arranged at one end of the load section, and a DVL cabin section is arranged at one end of the electric control section. A stern section is arranged at one end of the DVL cabin section, and all the parts are connected through a hoop connecting assembly matched with an O-shaped ring; the integrated navigation and positioning precision is high, the use quality of equipment is guaranteed, the underwater unmanned vehicle anchoring scheme meets the detection performance, meanwhile, the concealment of the underwater unmanned ...

Tooth and alveolar bone image segmentation and reconstruction method and system

The invention relates to a tooth and alveolar bone image segmentation and reconstruction method and system. The method comprises the steps of CBCT image acquisition and calibration of teeth and bone areas connected with the teeth in a CBCT image. The CBCT image is preprocessed; designing a convolutional neural network and training the network; taking the CBCT image as the input of the network, obtaining the probability value of all voxels in each classification, and classifying the voxels; carrying out post-processing on a segmented result; and reconstructing a three-dimensional model of the tooth and the alveolar bone according to a processed result. According to the method, the teeth and the alveolar bone in the CBCT are segmented through the neural network, the excellent denoising and artifact removing effects are achieved, the reconstructed three-dimensional image is smooth, and the real conditions of the teeth and the alveolar bone can be provided.

Performance test system for gearbox oil pump of internal combustion engine

The invention provides an internal combustion engine gearbox oil pump performance testing system, and belongs to the technical field of automobile engine part performance testing. The device comprises a tested oil pump and a control device, the tested oil pump is respectively connected with the control device, a driving motor and a torque rotating speed measuring instrument, an oil outlet of the tested oil pump is connected with an oil outlet pipeline, the oil outlet pipeline is connected with a first pressure transmitter, the oil outlet pipeline is branched into two sub-pipelines, the two sub-pipelines are respectively connected with a main oil tank, and the main oil tank is connected with the driving motor. The two sub-pipelines are respectively provided with a first regulating valve and a mass flow meter in sequence from the oil outlet direction, an oil inlet of the tested oil pump is connected with an oil inlet pipeline, the oil inlet pipeline is respectively connected with a valve, ...

Band-gap reference source trimming circuit capable of reducing oscillation

The invention discloses a band-gap reference source trimming circuit for reducing oscillation. The circuit is characterized in that the circuit is connected between a device voltage end and a pre-stabilized voltage output end of a band-gap reference source; the circuit comprises a reference resistor and a plurality of trimming branches which are arranged in sequence according to a preset sequence; wherein the preset sequence is set based on the oscillation direction when the pre-stabilized voltage oscillates. According to the method, reasonable design of the trimming module in the band gap circuit is realized according to the sudden change direction of the output voltage of the pre-stabilization module under the working condition of the circuit, so that circuit oscillation is minimized, and the circuit is rapid and stable.

Making device and making method of special fried chicken

The invention discloses a special fried chicken making device and a making method thereof, and relates to the technical field of food processing. The pressure cooker comprises a pressure cooker body and a cooker cover, a pressure release valve is arranged on the cooker cover, and the pressure release valve comprises a fixing cylinder, an exhaust pipe, a sealing plug and a screw rod; according to the pressure cooker, the pressure release valve is arranged at the top end of the cooker cover, the pressure release valve structurally comprises the fixing cylinder, the exhaust pipe, the sealing plug and the screw rod, pressure in the pressure cooker can be quickly discharged, the pressure discharging time is saved, and the working efficiency is improved; the pressure cooker comprises a pressure cooker body and a cooker cover, a pressure release valve is arranged on the cooker cover, and the pressure release valve comprises a fixing cylinder, an exhaust pipe, a sealing plug and a screw rod; according ...

Delay adaptive adjusting circuit in DC-DC converter

A delay adaptive adjusting circuit in a DC-DC converter is characterized in that a sampling unit is used for sampling a feedback voltage Vfb and inputting a sampling result into a comparison unit; the comparison unit is used for comparing the sampling results to judge the end moment of the turbine state and sending a turbine end signal to the timing unit; the timing unit is used for judging the state of the feedback voltage Vfb based on the turbine reference voltage Turbo Ref, outputting a turbine starting instruction and generating a turbine ending instruction based on the turbine ending signal output by the comparison unit; the delay detection unit generates delay time based on the input voltage Vin and the output voltage Vout of the converter and then sends the delay time to the turbine state control unit; the turbine state control unit generates and inputs a turbine current to an output capacitance of an error amplifier in the converter based on a turbine start command, a turbine end ...

Word vector processing method, device and equipment

The invention provides a word vector processing method, device and equipment, and relates to the technical field of communication. The method comprises the steps of determining a target word; taking the target word as a retrieval object, and performing retrieval through a search engine to obtain a retrieval result; determining an associated word of the target word according to the retrieval result; and determining a target word vector of the target word according to the word vector of the associated word. According to the scheme, the problem that the vector information of the words cannot be determined due to the fact that the words are not contained in a corpus is solved.

Forging equipment management system for automatic forging line

The invention relates to the technical field of data management, and particularly discloses a forging equipment management system for an automatic forging line, which comprises a data acquisition module, a data processing module, a forging equipment integrated management module, a fault prediction and maintenance module and a user visual interface. Due to the fact that forging equipment is frequently used and easily breaks down, and working data of all the equipment needs to be collected in real time, the forging equipment management system for the forging automatic line predicts possible faults of all the equipment in advance by analyzing the equipment data, information sharing and interaction between the equipment are achieved, and the working efficiency is improved. And maintenance and repair can be carried out in time. According to the invention, the production time and cost can be reduced, the optimal operation of the equipment can be realized, the production efficiency and quality ...

Anti-negative-impulse circuit during switching between DCM and FCCM in soft start process

An anti-negative-impulse circuit during switching of a DCM and an FCCM in a soft start process is characterized in that the circuit is a BUCK circuit with a light load burst control mode, and a burst control unit is used for shielding burst signals when the DCM state is switched to the FCCM state; the soft start control unit is used for receiving the state switching signal and the error amplification signal and generating a burst delay signal based on the state switching signal and the error amplification signal so as to delay the shielding time of a burst signal in the burst control unit; and the switch timing control unit is used for timing the control voltage of the lower tube in the BUCK circuit and making the single conduction time of the lower tube in the FCCM state less than the single conduction time of the lower tube in the DCM state. The circuit is simple in structure and clear in logic, the problem that the inductive current negative value is too large in the soft start process ...

Modular air gun floating body platform

The utility model discloses a modular air gun floating body platform which comprises a platform body and a support, the support is located at the upper end of the platform body and fixedly connected with the platform body, and the modular air gun floating body platform further comprises a floating body device, a seismic source device, a winding device and a damping device. The earthquake source device is located below the floating body device, the winding device is located at the upper end of the support, and the damping devices are located on the two sides of the platform, and the platform has the advantages that the structure is simple, the modular design is adopted, the floating body device is arranged, and the platform can be pulled by a ship and can be separated from the ship to serve as a fixed observation platform; the earthquake source device can be put in and recovered through the winding device, the damping device is arranged, so that the platform has a buffer anti-collision effect ...