High-voltage power-on control system and method and storage medium

The invention discloses a high-voltage power-on control system and method and a storage medium. The system comprises a battery total unit, an electric energy distribution unit and a main controller. The battery total unit is used for controlling the N storage sub-units to start according to the starting signal and generating battery information corresponding to the N storage sub-units; the electric energy distribution unit is used for determining whether each power storage sub-unit meets a high-voltage power-on condition or not according to the battery information; when the high-voltage power-on condition is met, the controller is also used for sending an environment detection instruction to the main controller; the main controller is used for detecting a power-on environment according to the environment detection instruction, and sending a high-voltage power-on instruction to the electric energy distribution unit when the power-on environment meets a safety condition; and the electric ...

Expandable efficient attribute access control mechanism based on smart contract

The invention discloses an extensible efficient attribute access control mechanism based on a smart contract. The invention relates to the field of access control. In order to solve the problems that an existing access control scheme is poor in expandability, contract management is complex, an access control strategy retrieval method is low in efficiency and the like, the invention provides an extensible and efficient attribute access control mechanism based on an intelligent contract, namely an eXtensible Attribute-Based Access Control (XADAC). According to the scheme, a distributed extensible cross-domain access control architecture based on a smart contract is provided, a policy and an object are unbound, a many-to-many policy management method is provided, and an efficient policy retrieval method based on a prefix tag is provided; the method has the characteristics of semi-centralization, expandability, auditing, concurrent processing, privacy protection, low time delay and the like ...

Park security problem quick response method based on digital twinning

The invention discloses a digital twinning-based park security problem quick response method, which relates to the technical field of intelligent security, and comprises the following steps: constructing a service platform, and constructing a database and a plurality of model libraries in the service platform; video information, personnel face image information, indoor smoke concentration and the temperature of an object in a view field are obtained through security equipment and uploaded to a service platform, a database is constructed, a digital twin model is constructed with sample data, a virtual digital space is constructed according to the mapping relation between the security data and the sample data, the obtained security data are diagnosed, and the diagnosis result is obtained. And according to the diagnosis result, generating park security scheduling, and obtaining a corresponding security response strategy. According to the park security problem quick response method based on ...

Logistics type supply chain management method and system based on industrial park

The invention discloses a supply chain management method and system based on logistics in an industrial park, and relates to the technical field of logistics service application. The method comprises the following steps: step 1, obtaining logistics supplier information in an industrial park; step 2, daily transportation information is counted and resource summarization is carried out; 3, path pushing is carried out subsequently according to database resources; 4, the two kinds of logistics information are installed in a warehouse-in and warehouse-out mode for configuration; and 5, outputting the analysis model. Through the effect of the logistics suppliers in the industrial park type enterprise in the supply chain, the resource integration degree and subsequent logistics path recommendation are improved, the logistics circulation efficiency is improved, the effect in other whole supply chain systems is achieved, and overall process management is facilitated.

Sub-health prediction method for electronic lock of urban rail transit platform door

The invention discloses a sub-health prediction method for an electronic lock of an urban rail transit platform door, and relates to the technical field of rail transit. According to real-time operation data and historical operation data of four point locations of an electronic lock unlocking fault (bool), an electronic lock locking fault (bool), electronic lock locking time (ms) and electronic lock unlocking time (ms), an electronic lock sub-health prediction model based on AHP is constructed to predict the health condition of the electronic lock in the future. Firstly, an equipment system health evaluation index is obtained through a weighting result of a health value of a single module or a single device; establishing a corresponding fault model based on the unlocking time and the locking time; constructing an electronic lock sub-health prediction model based on AHP; the inspection and maintenance of industrial equipment products related to or containing electronic lock parts are improved ...

Supply chain data collaboration-oriented user identity authentication method and system

The invention particularly relates to a supply chain data collaboration-oriented user identity authentication method and system. The method comprises the following steps: constructing an identity management server of a supply chain; receiving a supply chain registration request; encrypting the identity information of the registrant to generate an identity information ciphertext; generating a corresponding digital signature according to the identity information ciphertext; uploading the identity information ciphertext and the digital signature of the registrant to an identity management server, and obtaining a corresponding data storage address; associating the identity information of the registrant with the corresponding data storage address; receiving a supply chain access request; and obtaining a corresponding data storage address through the identity information of the visitor, and calling a corresponding identity information ciphertext and a digital signature from the identity management ...

Parafoil control law test commissioning platform and commissioning method

The invention discloses a parafoil control law test commissioning platform and a commissioning method. The commissioning platform comprises a ground device and an air device, wherein the ground device comprises a ground commissioning station and a ground commissioning radio station; the air device comprises a control center, and an air commissioning station and a driving structure in communication connection with the control center; the air commissioning station and the ground commissioning platform are in two-way wireless communication; the air device also comprises a left-right servo mechanism; the left-right servo mechanism is connected with the driving mechanism and folding and unfolding of a left-right operation rope of the parafoil can be controlled under driving of the driving structure. Real-time commissioning can be realized; the commissioning effects can be observed in real time through trajectory of the parafoil; characteristics of real-time performance, high efficiency, intuitiveness ...

Lead-free modified polyformaldehyde material and its preparing method

Milling surface integrity prediction method

The invention discloses a milling surface integrity prediction method. The method comprises the following steps: S1, collecting a milling processing test data set; s2, preprocessing the milling processing test data set to obtain a processed test data set; s3, inputting the processed test data set into a milling surface integrity prediction model for model training to obtain a trained prediction model; and S4, inputting milling data to be measured into the trained prediction model, and outputting a prediction result of the milling surface integrity. According to the method, the milling surface integrity prediction precision can be remarkably improved, and the efficiency and quality of the milling process can be improved.

Automobile industry supply chain collaboration platform based on block chain technology

The invention discloses an automobile industry supply chain collaboration platform based on a block chain technology, and relates to the technical field of block chains. The system comprises an application service layer, a platform service layer, a servitization resource layer and a physics resource layer, and the application service layer comprises multi-dimensional situation comprehensive perception, capacity accurate matching, plan and logistics cooperation and multi-plan deduction auxiliary decision making. The platform service layer comprises service management and platform operation, business collaboration, big data analysis and application, service transaction/business, development support environment and user management, the service resource layer comprises a service resource pool, and the physical resource layer comprises computing resources and a data resource/thematic database. The characteristics of decentration, traceability, tampering prevention, safety, credibility and the ...

Performance state evaluation method, device and equipment of platform door transmission device and medium

The embodiment of the invention provides a performance state evaluation method, device and equipment for a platform door transmission device and a medium, and relates to the technical field of traffic rail facilities, and the method comprises the steps: obtaining monitoring data and reference data for all operation parameters of the platform door transmission device; determining the distribution condition of the monitoring data and the distribution condition of the reference data; according to the distribution condition of the monitoring data and the distribution condition of the reference data, the deviation degree between the monitoring data and the reference data is determined; and determining the performance state of the platform door transmission device according to the deviation degree. According to the scheme, the performance state of the platform door transmission device in the whole life cycle can be monitored and evaluated, various different performance states of the platform ...

Method and device for monitoring carbon emission of equipment manufacturing enterprise, equipment and medium

The embodiment of the invention provides an equipment manufacturing enterprise carbon emission monitoring method and device, equipment and a medium, and relates to the technical field of data processing. The method comprises the following steps: acquiring first related data of fossil fuel combustion in an enterprise boundary, second related data related to carbon dioxide emission in an industrial production process of an enterprise and third related data of energy consumption of the enterprise; calculating a first carbon dioxide emission amount generated by fossil fuel combustion in the enterprise boundary according to the first related data; calculating a second carbon dioxide emission amount generated in the industrial production process of the enterprise according to the second related data; calculating a third carbon dioxide emission amount generated by energy consumption of the enterprise according to the third related data; and superposing the first carbon dioxide emission amount, ...