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588results about How to "Prevent theft" patented technology

Remote regulation and control LED illumination system based on Internet of Things

The invention discloses a remote regulation and control LED lighting system based on the Internet of Things, and relates to the technical field of LED lighting systems, comprising an LED lighting equipment module which comprises an efficient lamp, a microcontroller, an Internet of Things communication module, a remote control terminal module supporting multi-protocol and encryption, having Mesh networking, a multi-terminal control, having multiple functions and innovation formulas, and a sensor module; the intelligent LED lighting control system has the advantages that environment information is collected, the data management and analysis module stores and analyzes data, energy-saving management and the like are achieved, all the modules work cooperatively, and the functions of remote intelligent regulation and control, fault self-inspection, butt joint with other systems and the like of LED lighting are achieved. Through collaborative innovation of multiple modules, remote intelligent regulation and control of LED lighting are realized, the lighting quality and user experience are improved, energy is saved, consumption is reduced, the system has the functions of fault self-checking and alarming and the like, the reliability and compatibility of the system are improved, and the diversified requirements of modern lighting systems are met.
Owner:深圳市光普达科技有限公司

Enterprise-level knowledge management system based on large language model

The invention discloses an enterprise-level knowledge management system based on a large language model. The enterprise-level knowledge management system comprises a knowledge storage module, a knowledge analysis module and a knowledge application module, the knowledge storage module is responsible for managing and storing knowledge from different sources, supporting uploading, updating, deleting and sharing of electronic documents and multimedia documents, and is provided with authority control; the knowledge analysis module is used for carrying out deep understanding and structured processing on text and multimedia contents through a special analyzer by utilizing an advanced large language model technology; the knowledge application module provides intelligent retrieval and intelligent question and answer functions and supports advanced applications such as behavior portrait analysis and standard process supervision. According to the method and the system, the acquisition, understanding and application efficiency of enterprise knowledge is remarkably improved by fusing a large language model technology and a traditional knowledge management method, an intelligent, automatic and safe knowledge management solution is provided for an enterprise, and value mining and innovative application of enterprise knowledge assets are effectively promoted.
Owner:JIANGSU YONGSHANQIAO ARCHIVES MANAGEMENT SERVICE CO LTD

Environment monitoring system based on optical sensor

The invention discloses an environmental monitoring system based on an optical sensor, and relates to the technical field of environmental monitoring, and the system comprises the following components: a quantum entanglement module, an optical sensor integration module, a quantum measurement and data processing module, and a data transmission and sharing module. By integrating the quantum entanglement module, the optical sensor integration module and the quantum measurement and data processing module, high-precision and real-time monitoring of environmental parameters is realized, the quantum entanglement technology provides measurement precision and anti-interference capability superior to those of a traditional optical sensor for the system, the accuracy and reliability of data are ensured, and meanwhile, the quantum entanglement technology can be used for monitoring the environmental parameters in real time. Due to the design of high sensitivity and wide dynamic range of the optical sensor, the system can stably work under various complex environment conditions, and the efficiency and accuracy of environment monitoring are effectively improved.
Owner:SHANGHAI YIJING MICROELECTRONICS TECH CO LTD

Electric power data acquisition terminal with encryption function and method

The invention relates to the technical field of electric power data acquisition with an encryption function, and discloses an electric power data acquisition terminal with an encryption function and a method. By combining the environment data and the equipment state, the encryption process enhances the security and adaptability of data encryption. Environment and equipment data input ensures that encryption results are different, and potential safety hazards caused by static data sources are avoided. The data are reasonably combined through a seed generation formula, it is ensured that the seeds have enough randomness, and the brute force cracking risk is reduced. The key generation strategy generates a unique key through a seed, so that the attack resistance of the system is improved. The key matrix and random number generation strategy improves the unpredictability of the encryption algorithm. And dynamically updating the encryption matrix to prevent the encryption matrix from being cracked in long-term use. In the whole process, comprehensive protection of the data in acquisition, encryption and transmission is ensured, and the data is effectively prevented from being tampered or stolen.
Owner:BEIJING YIMEI SIFANG SOFTWARE TECH CO LTD

Bill creditor right circulation and financing method and system based on block chain

The invention relates to the technical field of financial science and technology, and discloses a blockchain-based bill creditor's right circulation and financing method and system, and the method comprises a bill information collection unit, a blockchain storage unit, a creditor's right auditing unit, a circulation transaction unit, and a financing application unit. According to the invention, the security of bill information is guaranteed through an asymmetric encryption algorithm, and tampering and stealing are prevented; multiple links such as rigorous creditor's right auditing, identity information comparison, endorsement continuity check and transaction contract auditing ensure that the bill is true and legal; the circulation transaction mechanism is efficient, convenient and clear, the links of listing, inquiry, bargaining, transaction and the like are covered by a clear process, a price matching algorithm promotes transaction conclusion, a smart contract automatically executes creditor's right transfer and information updating, and the transaction efficiency and accuracy are improved; financing application service is complete, enterprise application is convenient, a strict auditing mechanism is combined with credit evaluation and creditor right auditing to guarantee financing safety, more financing channels are provided for enterprises, and entity economic development is promoted.
Owner:ANHUI RUIXUAN SUPPLY CHAIN TECH CO LTD

Quantum-fused protocol communication method and device, equipment and storage medium

The embodiment of the invention provides a quantum-fused protocol communication method and device, equipment and a storage medium, and the method comprises the steps: calling a communication interface, and transmitting a verification message to a quantum key service platform, so as to carry out the identity safety verification and apply for a session key; receiving and decrypting a first encrypted session key sent by the quantum key service platform to obtain a session key; sending the encrypted session identifier to a server, so that the server applies for a session key from a quantum key service platform; and performing encrypted communication with the server according to the session key. According to the embodiment of the invention, the whole quantum key communication process is packaged in the communication interface, so that software developed based on a traditional network interface can be simply and safely migrated to quantum. Moreover, identity security verification is carried out through the verification message, man-in-the-middle attack is prevented, and the communication security is enhanced. In addition, the client and the server encrypt and decrypt the communication data by using the same session key, thereby realizing secure encrypted communication.
Owner:中电信量子信息科技集团有限公司

Bidding data management method and system based on block chain

The invention relates to the technical field of data management methods, in particular to a bid inviting data management method and system based on a block chain. According to the technical scheme, the system comprises a data storage module, a network communication module, an intelligent contract module, a user interface module and a data backup and recovery module. Through a block chain distributed account book technology and an asymmetric encryption algorithm, data integrity, authenticity, confidentiality and security are improved, and data are prevented from being stolen or tampered; the bid invitation data management system based on the block chain enables the bid invitation data to be traced by authorized parties, and the transparency and fairness of the bid invitation process are improved; meanwhile, automatic execution of a bid invitation process is realized through an intelligent contract, efficiency and fairness are improved, transaction cost and risk are reduced, transparency and credibility of the bid invitation process are enhanced, and availability and integrity of bid invitation data and stable operation of a block chain network are ensured and Byzantine node risk is resisted based on a P2P network architecture and a PBFT algorithm.
Owner:SINOSTEEL STEEL TENDERING CO LTD

HPLC-HRF collaborative dual-mode data communication optimization method

The invention relates to the technical field of data communication, and discloses an HPLC-HRF (High Performance Liquid Chromatography-High Radio Frequency) collaborative dual-mode data communication optimization method, which comprises the steps of data acquisition, data preprocessing, data transmission, central data processing and the like. According to the HPLC-HRF collaborative dual-mode data communication optimization method, data transmission is carried out by using an HPLC network and an HRF network in parallel, the bandwidths and the coverage ranges of the two networks are fully utilized, the overall efficiency of data transmission is improved, the data volume required by transmission is further reduced through the application of a data compression technology, the data transmission speed is increased, and the data transmission efficiency is improved. Redundant backup of data is ensured through a multi-path transmission strategy, even if one transmission path breaks down, the data can still safely arrive at a destination through other paths, temporary storage and recovery functions of the data in the transmission process are provided through a data caching and recovery mechanism, the risk of data loss is reduced, and the data transmission efficiency is improved. Through a network fault automatic switching mechanism, the standby network can be rapidly switched when the network fault is detected, and the continuity of data transmission is ensured.
Owner:LIAONING RUISHANG ELECTRIC POWER TECHNOLOGY CO LTD

Identity authentication and access control system and method based on behavior feature recognition

The invention relates to the technical field of information security, and discloses an identity authentication and access control system and method based on behavior feature recognition, and the system comprises a data collection module which is used for collecting behavior data of a user in multiple devices, and transmitting the collected behavior data to a feature extraction and preprocessing module for subsequent processing and analysis; and the feature extraction and preprocessing module is used for extracting features in the behavior data received by the data acquisition module, preprocessing the features, and transmitting the preprocessed data features to the feature fusion and representation module for further fusion and representation. By integrating behavior data collected by various devices and sensors and adopting a multi-modal fusion and representation technology, the accuracy and robustness of identity authentication are remarkably improved, then the system can perform identity authentication based on behavior characteristics of a user, the limitation of a traditional technology based on passwords or biological recognition is avoided, and the user experience is improved. The method is suitable for preventing the identity information from being stolen or counterfeited.
Owner:HUANENG FUXIN WIND POWER GENERATION CO LTD

Information security transmission method, system and device based on quantum key and medium

The invention discloses an information security transmission method, system and device based on a quantum key and a medium, and relates to the technical field of information security storage and transmission, and the method comprises the following steps: connecting with an SIM card of a user, and converting an application key into a quantum state when the application key needs to be stored in an APP in a mobile device of the user; secret key transmission and storage are carried out by using a quantum state; when the user needs to use the application key, the identity information of the user is verified, and then the key in the quantum state is analyzed; the method is used for solving the problems that according to an existing information safety storage and transmission technology, transmitted information is easily intercepted, a safety transmission technology based on a quantum key uses a USB flash disk and a TF card as carriers, so that information of a user is easily leaked, and mobile quantum key communication is not convenient enough to use.
Owner:BEIJING ZHICHENG DINGTAI TECH DEV CO LTD

Method and system for communication between terminal and cloud server

The invention provides a communication method and system for a terminal and a cloud server, and the method comprises the steps: the terminal configures an agent client, sets an agent parameter at the agent client, starts an agent, and enters a first communication mode, and the agent parameter comprises a local agent port; in the first communication mode, the terminal applies for a service key from a cloud server, and if the service key is successfully acquired, the terminal is allowed to enter a cloud computer interface; wherein the service key is used for encrypting or decrypting a cloud resource service flow packet transmitted by the local agent port. A terminal proxy client is set to start a proxy, a secure communication mode between a terminal and a cloud server is entered, and a cloud resource service flow packet is encrypted by using service keys held at two ends, so that cloud resources are prevented from being intercepted, leaked and tampered in transmission, and office security is protected; encryption at a flow layer is realized through an agent, the execution efficiency is high, encryption and decryption are implemented by combining a symmetric cryptographic algorithm with a high encryption and decryption processing rate, so that the processing capability and the response speed of the whole system are extremely high, and non-inductive secure acquisition of cloud resources is realized; encryption is carried out on the flow layer, and compared with a service layer, keys can be saved; the terminal is set to obtain the service key and enter the cloud computer interface, so that unauthorized users or hostile attackers are prevented from operating the cloud computer, and the system security is improved.
Owner:YANGTZE QUANTUM (WUHAN) TECH CO LTD

Privacy protection method based on computing migration and AI behavior trajectory analysis

The invention provides a privacy protection method based on computing migration and AI behavior trajectory analysis, and relates to the technical field of privacy protection of the Internet of Things. According to the method, a privacy label is bound to target data, an AI behavior track fingerprint is generated in each AI processing stage, and matching verification is performed on the AI behavior track fingerprint and the privacy label, so that dynamic access control and security audit among terminal equipment, edge nodes and a cloud are realized. On one hand, data can be effectively prevented from being stolen or tampered in the migration process through an encryption transmission and fingerprint verification mechanism; and on the other hand, the fingerprint and label information can be selectively stored in the block chain or the alliance chain side chain, so that the tamper-proofing performance and the distributed credibility of the audit record can be enhanced. The method is suitable for various AI application scenes, the risk of unauthorized calling and sensitive information leakage can be reduced, and the traceability and safety of the whole data processing process are improved.
Owner:NANJING SHENYE INTELLIGENT SYST ENG

Electric energy metering box with security structure

The invention discloses an electric energy metering box with a security structure, and relates to the technical field of metering boxes. The metering box comprises a metering box outer box, a metering box inner box is fixed in the metering box outer box, an I-shaped support is fixed on the rear side of the metering box outer box, a box door is hinged to the front side of the metering box outer box, an anti-shaking device is arranged on the front side of the I-shaped support, and the anti-shaking device comprises two hollow insertion columns. The two hollow insertion columns penetrate through and are slidably installed on the front side of the I-shaped support. Through the arrangement of the anti-shaking device, the screw rod, the internal thread plate, the hollow insertion column, the rotating column, the triangular push plate and the clamping plate are matched, and the spring of the hollow insertion column pushes the outer box of the metering box to be tightly attached to the wall body under the action of the elastic force of the spring corresponding to the hollow insertion column, so that a gap between the outer box of the metering box and the wall body is avoided.
Owner:XINXIANG YIJIN METAL PROD CO LTD +1

Memory isolation method and device for embedded system and medium

The invention discloses a memory isolation method and device for an embedded system and a medium, and relates to the technical field of computer information, and the method comprises the steps: generating a corresponding initial domain strategy for each memory region through a domain protection unit according to the configuration of a target system; receiving a memory access request, determining a source domain and a target domain requested to be accessed through a domain state controller, obtaining an execution task in the memory access request, and adjusting an operation mode of a target system according to the execution task; generating an access instruction based on the memory access request, and sending the access instruction to a domain protection unit; judging whether the source domain has the access authority of the target domain or not according to the initial domain strategy corresponding to the target domain through a domain protection unit; if yes, access is allowed, and the execution task corresponding to the access instruction is executed. The access instruction is checked through the domain protection unit according to the corresponding domain strategy, and unauthorized memory access operation can be directly and effectively prevented on hardware.
Owner:SHANDONG INSPUR SCI RES INST CO LTD

Intelligent fire extinguishing control system

The invention discloses an intelligent fire extinguishing control system which comprises a temperature sensing module, a judgment module, a fire extinguishing execution module, a communication and monitoring module and a power management module, the temperature sensing module adopts a high-precision thermistor as a temperature sensing element, and the resistance value of the temperature sensing element presents an accurate linear relation along with temperature change; a microprocessor arranged in the temperature sensing module samples the resistance value of a thermistor at a fixed frequency, the judgment module comprises a dynamic threshold setting algorithm and a fire judgment logic, and comprehensive intelligent prevention and control of a fire in a small closed space are achieved through cooperative work and advanced algorithm application of all the modules. The high efficiency, reliability and innovativeness of the system are embodied from temperature sensing detection to fire judgment, from fire extinguishing execution to remote monitoring and early warning and from intelligentization of power management. The system can effectively improve the fire prevention and control capability and reduce the loss caused by the fire.
Owner:SUZHOU HAIXI FIRE TECHNOLOGY CO LTD

Data transmission method, system and device based on quantum key storage medium

The embodiment of the invention provides a data transmission method, system, device and equipment based on a quantum key storage medium and the storage medium, and the method comprises the steps: obtaining an encrypted session key sent by a quantum key distribution network when a calling terminal establishes communication with a called terminal; querying a corresponding first charging key in a first charging key storage medium according to the calling terminal identifier, wherein the first charging key storage medium comprises charging keys corresponding to a plurality of terminal identifiers; decrypting the encrypted session key according to the first charging key to obtain a first session key; encrypting the first audio and video data through the first session key to obtain encrypted first audio and video data, and transmitting the encrypted first audio and video data to the called terminal; receiving encrypted second audio and video data sent by the called terminal; and decrypting the encrypted second audio and video data through the first session key to obtain the second audio and video data, so that the communication security is improved.
Owner:CHINA TELECOM QUANTUM TECH CO LTD

System based on railway comprehensive video monitoring security application

The invention relates to a system based on railway comprehensive video monitoring security application, and the system comprises a railway video monitoring system which comprises a video management platform, front-end equipment and a terminal user; the video management platform is internally provided with an identity security authentication management and control module which is used for realizing identity authentication, verification and authorization of the video management platform when a terminal user registers; the security level control management and control module is used for realizing control signaling authentication when the front-end equipment, the terminal user and the video management platform perform signaling interaction; the video safety calling management and control module is used for realizing a video calling management and control function of the video management platform on a terminal user; and the security application system comprises a high-security-level authentication module and a video security key service system, and the high-security-level authentication module and the video security key service system are matched to provide bidirectional identity security authentication, control signaling authentication and video data encryption and decryption functions under the high-security-level application condition. The method can be widely applied to the field of railway video monitoring systems.
Owner:CRSC COMM & INFORMATION GRP CO LTD

Electric power WLAN security reinforcement method, system and device based on trusted computing

The invention discloses an electric power WLAN security reinforcement method, system and device based on trusted computing, and relates to the technical field of electric power WLAN security, the method comprises the following steps: respectively presetting a trusted platform control module TPCM and corresponding components on an electric power wireless terminal, an electric power wireless access point and an electric power authentication server to form a ternary three-layer architecture; certificate application and distribution of equipment are carried out according to the three-element three-layer architecture, the equipment is managed and controlled in a unified mode through an electric power authentication server, and the equipment comprises an electric power wireless terminal and an electric power wireless access point; and carrying out trusted access authentication on the equipment which obtains the certificate, including bidirectional identity authentication based on a ternary three-layer architecture, platform identity and integrity evaluation based on attributes and key negotiation based on a national cryptographic algorithm, so as to realize access of the trusted power wireless terminal to the trusted power wireless access point. According to the method, collusion attacks can be prevented, platform configuration information cannot be leaked, and sensitive information can be effectively prevented from being intercepted by attackers or untrusted intermediate equipment.
Owner:CHINA ELECTRIC POWER RESEARCH INSTITUTE CO LTD

Vehicle logo lifting mechanism and vehicle

The invention provides a vehicle logo lifting mechanism and a vehicle. The vehicle logo lifting mechanism comprises a guide rail, a sliding base capable of sliding on the guide rail, a vehicle logo assembly and a lifting assembly, wherein the vehicle logo assembly and the lifting assembly are arranged on the sliding base; the vehicle logo assembly comprises a vertical logo and a supporting rod fixed to the vertical logo. The lifting assembly comprises a transmission rack, a gear structure and a plug pin, the gear structure is meshed with the transmission rack and the plug pin, the transmission rack is fixed to the supporting rod, and the plug pin and a locking block are locked; when the vehicle logo assembly descends rapidly along the guide rail, the force applied to the vehicle logo triggers the transmission rack to move downwards so as to drive the gear structure to rotate, so that the bolt is separated from the locking block, and the vehicle logo assembly descends rapidly along the guide rail. The vehicle logo lifting mechanism enables the vehicle logo assembly to descend along the guide rail under the action of self gravity when the vertical mark is stressed, and the vertical mark can be effectively protected.
Owner:ZHEJIANG ZEEKR INTELLIGENT TECH CO LTD +1

Method for realizing user login security authentication based on cloud platform

The invention provides a method for realizing user login security authentication based on a cloud platform, which belongs to the technical field of security authentication and comprises management forms of password identity authentication, two-factor authentication, biological recognition authentication, certificate-based authentication and the like based on a cloud platform user. Security of transmission protocol encryption, password encryption, storage encryption and the like is also included, and data leakage is prevented; meanwhile, access control limitation of the user, user login security auditing and monitoring and the like are also included, and it is ensured that abnormal login or abnormal operation of the user can be found and processed in time. In the cloud platform system, whether multiple authentication modes, authentication timeliness and the like are configured for the user role, so that the user login process can be simplified in the complex cloud platform system.
Owner:SHANDONG LANGCHAO YUNTOU INFORMATION TECH CO LTD

Vehicle monitoring method and system based on electronic fence, electronic equipment and storage medium

The embodiment of the invention provides a vehicle monitoring method and system based on an electronic fence, electronic equipment and a storage medium, and belongs to the field of intelligent traffic monitoring. The method comprises the following steps: acquiring position information of a to-be-monitored vehicle, comparing the position information with a preset boundary of an electronic fence, and determining the condition that the to-be-monitored vehicle enters and exits the electronic fence; according to an electronic fence and a monitoring mode preset by a user, the state of the vehicle to be monitored is judged, and a corresponding monitoring or management action is triggered. According to the technical scheme, a user can customize the electronic fence and the monitoring mode according to actual requirements, personalized monitoring is achieved, the time when the vehicle enters and exits the fence and vehicle related information are accurately recorded, once the vehicle leaves a set area without authorization, management measures can be taken immediately, and then the vehicle is prevented from being stolen, misused or illegally moved.
Owner:SINO TRUK JINAN POWER CO LTD

Identity authentication method and system and computer equipment

The invention relates to the technical field of information security, and provides an identity authentication method and system, and computer equipment. According to the method, password-free authentication is carried out through a fingerprint authentication mode of a fingerprint password key, and a user name and a password are only stored in the fingerprint password key; in the identity authentication process, the client encrypts a first random number generated by the fingerprint password key by using a public key of the server and then sends the encrypted first random number to the server, and the server encrypts the first random number obtained by decryption and a second random number generated by the server to obtain ciphertext data and sends the ciphertext data to the server. The client and the server perform bidirectional identity authentication by using the random numbers of both parties and combining the certificate, and the client and the server perform operation by using the first random number, the second random number and the feature code to obtain the transmission key, so that an attacker is prevented from stealing an authentication credential by using network monitoring or other modes; and the data is retransmitted to the authentication server for replay attack, so that the data transmission security in the authentication process is ensured.
Owner:BEIJING SMARTCHIP MICROELECTRONICS TECHNOLOGY CO LTD

Prefabricated cabin type data center monitoring system

The invention relates to the technical field of data center management, and discloses a prefabricated cabin type data center monitoring system, which comprises a data acquisition module arranged in a prefabricated cabin and used for acquiring environment data, electric power data and IT equipment operation state data in the cabin, converting the acquired data into a standardized data format, and transmitting the standardized data format to a server through a protocol conversion interface; and uniformly converting the acquired data of different communication protocols into a preset standard data format. A data cleaning and compression mechanism is designed in an edge calculation module, collected environment data, power data and IT equipment operation state data are preprocessed in real time, abnormal data are rapidly judged based on set upper and lower limit values, the abnormal data are marked as alarm data and are preferentially transmitted to a subsequent module, transmission of invalid data is reduced, and the efficiency is improved. The network bandwidth utilization rate is improved, rapid fault detection and response are realized, and the fault diagnosis and repair time is shortened.
Owner:中国通信建设集团设计院有限公司

Secure bidirectional authentication method and system

The invention provides a security bidirectional authentication method and system, and is applied to the technical field of communication. In the method, a web front end sends a request for controlling an Android terminal to an SRS server through an MOTT protocol. When a request is received for the first time, the Android terminal generates a key pair, encrypts a public key and sends the encrypted public key to the SRS server. After the request is received again and the user agrees with the request, the SP security chip of the Android terminal generates a 32-bit random number as a control token and sends the control token to the SRS server; the server stores the random number and waits for an operation code. And the Web front end obtains the Android terminal screen recording information by using the WebRTC, generates an operation code according to the operation, and sends the operation code to the SRS server. And after the server receives the operation code, the operation code is encrypted by using an RSA public key in combination with the previously stored random number, and the encrypted operation code and the operation code are sent to the Android terminal together. And the Android terminal decrypts the data by using the private key, and executes the operation code after checking that the random number is matched. The whole process ensures the safe handover of the control right and the safety of the operation, and the safety protection capability in the communication process is effectively improved.
Owner:SHENZHEN TOPWISE COMM CO LTD

Exclusive encrypted file format of universal water, gas, sound and residue pollutant data acquisition instrument

The invention relates to the technical field of environmental monitoring, and discloses an exclusive encrypted file format of a universal water-gas-sound-residue pollutant data acquisition instrument. File structures including a file header setting section, a data storage format definition section, a self-checking section and an encryption algorithm section are sequentially stored in a file to form an exclusive encryption file format of the universal water, gas, sound and residue pollutant data acquisition instrument, various encryption and checking measures are adopted, and the safety and integrity of data in the transmission and storage process are ensured. The method has the advantages that data are stored in the database and prevented from being tampered and stolen, data storage efficiency and retrieval speed are increased due to reasonable data storage formats and index designs, data management and analysis are facilitated, file damage or data tampering can be timely discovered through CRC32 check and data integrity check codes, data reliability is guaranteed, and data storage efficiency and retrieval speed are increased. And on the basis of an XML structured storage mode and an open file format design, subsequent addition of new pollutant parameters or function extension is facilitated, and good expandability is achieved.
Owner:SHANGHAI LEZHU INTELLIGENT TECHNOLOGY CO LTD

Smart manhole cover

The present invention discloses an intelligent manhole cover, which includes a manhole body, one end of which is a manhole opening; a cover plate, which is arranged on the manhole opening of the manhole body; a first driving mechanism, which includes a driving member, a first sleeve column and a second sleeve column, which can be relatively movable in a vertical direction, the upper end of the first sleeve column is connected to the cover plate, and the lower end of the second sleeve column is connected to the manhole body; the driving member includes a first magnetic member and a second magnetic member arranged to be relatively attracted, an elastic component compressed and connected between the first sleeve column and the second sleeve column, and an electromagnetic component for generating a magnetic force when power is turned on to release the magnetic attraction state of the first magnetic member and the second magnetic member; when the magnetic attraction state of the first magnetic member and the second magnetic member is released, the elastic component drives the second sleeve column to rise in a vertical direction so that the cover plate opens the manhole opening. The technical solution of the present invention can realize the automatic opening of the manhole cover, and has the effects of energy saving and safety.
Owner:SHENZHEN HETAI YECHENG CONSTR ENG CO LTD

Enterprise information sharing management method, system and device and storage medium

The invention discloses an enterprise information sharing management method, system and device and a storage medium, which are convenient for managing enterprise data, can promote cooperation and communication among departments in an enterprise, and can improve the utilization efficiency and value of data. The method comprises the following steps: acquiring department data uploaded by each department, and judging whether the format of the department data uploaded by each department accords with an uploading format or not through a regular expression; when it is determined that the format of the department data accords with an uploading format, a unique identification identifier is automatically generated according to the department data, and the identification identifier comprises a timestamp and department information corresponding to the department data; classifying the department data according to department information to obtain classified data; uploading the classified data to an information management system; and when application information of target data is received, judging whether the target data has the access permission or not according to the application information.
Owner:CETC BIGDATA RES INST CO LTD +1

Novel computer graphics card with stable structure

The utility model relates to the technical field of computer graphics cards, in particular to a novel computer graphics card with a stable structure, which comprises a card body, a chip box and a mounting device, a cooling fan is arranged in the card body, symmetrical support plates are arranged at the upper end of the rear side wall of the chip box, and the mounting device comprises a fixed box, a threaded rod and a movable block. A motor is arranged at the end, close to the supporting plate, of the fixing box, a locking rod is arranged on the side wall, close to the moving block, of the supporting plate, a fixing hole is formed in the end, away from the threaded rod, of the moving block, a coded lock is arranged on the upper side wall of the chip box, and a supporting rod is arranged on the side wall of the chip box. A receiver is arranged at one end of the supporting rod, an access box is arranged on one side wall of the card body, and an interface is formed in one end of the access box, so that the use safety is improved, the phenomenon that the display card is stolen is prevented, great convenience is achieved, dust enters the display card due to long-time exposure of the interface is prevented, the use effect is improved, the service life is prolonged, and use is convenient.
Owner:SHENZHEN JINGMAO INFORMATION TECHNOLOGY CO LTD

Remote spare power automatic switching system

The invention relates to the technical field of power systems, in particular to a remote spare power automatic switching system, which comprises a communication module, a main control module, a spare power supply module, a switching execution module and a monitoring module, and is characterized in that the monitoring module uploads monitoring data to the main control module through the communication module; a switching instruction is issued to the standby power supply module and the switching execution module through the communication module so as to realize rapid power restoration, the communication module introduces a double-path optical fiber channel as a main and standby communication channel, redundancy configuration is realized, continuity and reliability of system communication are ensured, data transmission is carried out by adopting an encryption technology, and data transmission efficiency is improved. According to the technical scheme, data are effectively prevented from being stolen or tampered in the transmission process, the security of the system data is guaranteed, the accuracy and high efficiency of data communication among the modules are guaranteed through a communication protocol and an interface, the stability of data communication and instruction transmission among the systems is guaranteed, and the use effect is better.
Owner:ZIQUAN ELECTRIC POWER DESIGN DESIGN

Large model data protection method, system and equipment based on data grid

The invention provides a large model data protection method, system and equipment based on a data grid, and relates to the technical field of model data processing. The large model data protection method based on the data grid comprises the steps of S1, data classification and marking, S2, access control and authority management, S3, data encryption, S4, data desensitization, S5, data backup and recovery and S6, monitoring and auditing. Through data classification and marking, sensitive data can be accurately identified, and different protection strategies are formulated according to the sensitive degree of the sensitive data, so that undifferentiated protection on all the data is avoided, resources are saved, and meanwhile, the protection strength on the data which really needs to be protected is emphatically enhanced.
Owner:SUZHOU XINLEI INFORMATION TECHNOLOGY CO LTD