59 results about "Link protection" patented technology

The invention discloses an apartment lease management system and method, and relates to the technical field of block chains, and the method comprises the steps: generating a facial feature vector through a ResNet-50 model, encrypting identity information and the facial feature vector through a ChaCha20-Poly1305 algorithm to generate encrypted identity data, and generating a credit point identifier and an initial credit point through an SHA-256 algorithm; processing the credit point identifier based on a joint learning framework to generate an anonymous credit query token, and protecting historical lease behavior data by using a differential privacy method; comparing the facial feature vector with the real-time facial feature vector through cosine similarity, and executing identity confirmation; and generating an electronic contract draft by using a Hyperledger Fabric network and a chain code. According to the method, a biological characteristic full-link protection system is constructed by fusing a ResNet-50 model and a ChaCha20-Poly1305 dynamic encryption mechanism.

This application provides a quantum-secure quantum key management and distribution method with end-to-end quantum security. The method includes: a first proxy platform sending a first key request to a control platform and receiving a target quantum key and a unique identifier; the first proxy platform sending the unique identifier to a second proxy platform, enabling the second proxy platform to obtain the target quantum key from the control platform; the first proxy platform receiving a second key request from a first device and sending the target quantum key and the unique identifier to the first device, enabling the first device to send the unique identifier to the second device; and the second device sending a request including the unique identifier to the second proxy platform to obtain the target quantum key. This allows the first and second devices to communicate using the target quantum key; the transmission channel for the unique identifier and each key request is a quantum-secure virtual private network tunnel. Therefore, end-to-end protection of the quantum key management and distribution process can be achieved, improving the system's quantum security capabilities.

Various aspects of this disclosure relate to: receiving (1502) a configuration message for subband time-frequency configuration, wherein the configuration message indicates frequency domain resources and time domain resources of at least one subband; and determining (1504) the transmission direction of the at least one subband, wherein the transmission direction includes a downlink, an uplink, a guard band, or a combination thereof.

The application relates to the technical field of data processing, and provides an API-level data flow transfer full-link protection method and device, equipment and a medium, which can collect application layer business log data and kernel state network flow data as to-be-processed data in real time by adopting a non-buried point mechanism, realizes non-intrusive full-amount data collection, identifies to-be-protected data by adopting a non-feature data supplement identification mechanism, improves the accuracy and generalization ability of data identification, solves the problem that non-feature data cannot be controlled, constructs an API-level full-link data flow transfer map according to the to-be-protected data and the to-be-processed data, provides a complete topology basis for subsequent risk detection and tracing, performs risk detection according to the API-level full-link data flow transfer map, improves the effectiveness of risk detection, performs bidirectional tracing according to the detection result and the API-level full-link data flow transfer map, obtains a tracing report, can quickly locate a data anomaly source and an influence range, and provides a complete evidence chain.

The invention belongs to the technical field of data security, and particularly relates to an Internet of Things data information secure transmission method. In order to solve the problems of limited resources and many transmission potential safety hazards of Internet of Things equipment, the method constructs full-link protection: generating a dynamic equipment fingerprint based on a physical unclonable function and behavior characteristics, and ensuring identity credibility; an improved elliptic curve Diffie-Hellman algorithm is adopted to generate a shared key, and the shared key is adaptive to lightweight equipment and is resistant to attacks; based on information entropy dynamic fragmentation, encrypting and embedding redundant data according to sensitivity differentiation; data fragmentation is transmitted through multiple paths; and carrying out fragmentation-level verification and accurate retransmission, and carrying out alarm isolation if the verification fails for more than three times. The method gives consideration to safety and high efficiency, comprehensively resists the threats such as counterfeiting, eavesdropping and cracking, guarantees the integrity and reliability of data transmission, and is adaptive to the complex application scene of the Internet of Things.

The present application relates to the technical field of subway, and discloses an intelligent guiding robot for coping with large passenger flow of subway, which comprises a subway platform, a main control cabinet, a monitoring camera, a charging cabin, a guiding mechanism and a blocking mechanism; the monitoring camera is installed at the top of the main control cabinet; a plurality of charging cabins are arranged at intervals in the outer area of the subway platform; the guiding mechanism is arranged in the interior of one of the charging cabins; and a plurality of blocking mechanisms are arranged in the interiors of the remaining charging cabins. The intelligent guiding robot for coping with large passenger flow of subway is characterized by intelligent cooperation, dynamic adaptation and full-scene protection, can flexibly adjust the number of channels according to passenger flow and platform layout, realizes the change from original single guiding to full-link protection, combines physical isolation and sound-light reminding, provides a feasible technical scheme for efficient and safe operation of the subway transportation hub, and is suitable for the large passenger flow dredging requirement of the subway peak period of a super large city, and has wide popularization value.

The present application provides a link protection switching implementation method and system. In a ring network composed of multiple stacking systems, the connection links between the multiple stacking systems include RPL links and ordinary links. The default state of the RPL link is a blocking state. Each stacking system includes a connected main board and a backup board. When the main board in the stacking system of the ordinary link senses that the ordinary link has failed, it will back up the processing results of the G8032 signal and protocol message to the backup board of the same stacking system. In addition, the main board will notify the stacking system of the RPL link to enable the stacking system of the RPL link to switch the RPL link to the on state, thereby realizing link protection switching. This solution can suppress loops through the RPL link on the one hand to ensure the normal network environment. On the other hand, it can quickly perform protection switching when an abnormality occurs in the link to ensure the reliability of the network.

The invention discloses a link protection switching method, electronic equipment, a readable storage medium and a computer program product, and belongs to the technical field of communication. The method comprises the following steps: acquiring a first link quality parameter of a target link; determining a first health degree score of the target link according to the first link quality parameter, the first health degree score being used for indicating a current link stability state of the target link; according to the first link quality parameter and the first health degree score, obtaining a dynamic switching threshold parameter according to a preset switching threshold obtaining strategy; and performing a link switching decision on the target link according to the dynamic switching threshold parameter.

The embodiment of the application discloses a test data processing system, an algorithm graph generator, a storage chip automatic test device, a link protection code generation method, a test data processing method and a computer program product, and belongs to the technical field of storage chip testing. The system comprises: a configuration register group, used for storing static preset parameters of a current test mode, wherein the static preset parameters at least comprise a storage interface protocol rule used by the current test mode; a burst context extraction circuit, used for detecting a start signal of burst transmission in a dynamic running process of an algorithm graph generator, extracting dynamic burst information and original test data of current burst transmission; and a link protection code generation circuit, used for analyzing the dynamic burst information and the original test data according to the storage interface protocol rule obtained from the configuration register group, and dynamically generating a link protection code of current burst transmission. The application can greatly reduce test complexity and significantly improve test efficiency.

The invention discloses an excavator controller and a program protection method thereof. The controller comprises a PCB integrated with a microswitch, a processor and a communication interface. A trigger point of the microswitch is higher than the surface of the PCB, and the shell is pressed to be closed when being assembled; the processor is used for detecting switch states; when it is continuously detected that the switch is switched off, it is judged that the shell is detached, specific data in a program storage area is modified immediately to achieve program locking, and the output power of an engine is reduced; and the locked program cannot run in the local machine and also fails when being copied to other processors. An instruction is sent by a special unlocking tool through a communication interface, so that the modified program data can be recovered, and the controller is recovered to be normal; according to the method, full-link protection from physical detection, active locking to safety recovery is achieved, the controller program is effectively prevented from being illegally stolen or tampered, and the method has high reliability, high safety and maintainability.

This terminal comprises: a communication unit that receives, from a base station, information pertaining to a time division duplex (TDD) pattern in a non-terrestrial network (NTN); and a control unit that determines, on the basis of the information pertaining to the TDD pattern, a TDD pattern in which one cycle is configured in the order of a downlink, a guard period, and an uplink, and which has a cycle that is an integral multiple of a radio frame. The communication unit executes transmission and reception with the base station by applying the determined TDD pattern.

The invention relates to the technical field of safety ropes, and particularly discloses a safety belt, a safety belt lock catch alarm device and an alarm method.The safety belt lock catch alarm device comprises a lock catch alarm device body, a safety belt body, a hanging ring, a tower climbing rope and a hook. The safety belt wearing state is verified through a metal conducting strip in a hanging ring, and the foundation anchor point is reliable; the double hooks integrate metal conduction and mechanical pressing double switches, effective mounting of a metal or nonmetal area of the iron tower is accurately recognized, and the misjudgment defect of a traditional single detection mode is eliminated; the main control box is fused with multi-source signals to establish a grading decision, and when it is detected that a hanging ring is not fixed, double hooks are not mounted or single hook communication fails, sound-light alarm and internet-of-things remote early warning are triggered. According to the alarm method, the false alarm rate can be compressed to be nearly zero, the accident response efficiency is remarkably improved, and a fixed end-dynamic end-equipment end full-link protection system is constructed.

This invention relates to the field of drive system control, and discloses an electric drive fault control method, device, computer equipment, and vehicle. The method includes: responding to a fault trigger signal output by the hardware layer of the electric drive system; monitoring the low-level duration of the fault trigger signal through the software layer of the electric drive system, and determining the fault type of the electric drive system based on the low-level duration; and controlling the electric drive system to perform corresponding actions based on the fault type. This invention solves the problem in the prior art where the fixed fault analysis time makes it impossible to distinguish between intermittent noise and continuous real faults, resulting in frequent false alarms and missed alarms in drive link protection.

The invention discloses an anti-theft verification method and system, and relates to the technical field of information security, a linked protection system is formed through three-level cooperative verification of a driving layer, a system layer and an application layer, and in the driving layer, an identification interface with read-only attributes is strongly coupled with hardware peripherals, so that the security of the system is improved. A unique identification code is generated through hard coding of a hardware register address, mirror image transplantation is blocked from a bottom layer, a hidden self-starting service of a system layer is operated preferentially at the initial stage of equipment starting, an unauthorized device cannot load a system function by detecting existence of an interface and legality of the identification code, and an application layer performs secondary verification before a core function is called. The sensitive operation is forbidden, the multi-level verification mechanism enables an attacker to simultaneously break through three levels of hardware binding, system startup protection and application function limitation, full-link security protection for preventing extraction, startup and use is constructed, and the uniqueness of the system and the application is effectively guaranteed.

To provide a terminal and a communication method using time division duplex (TDD) in a non-terrestrial network (NTN) environment.SOLUTION: In a radio communication system, a terminal has: a communication section that receives information on a TDD pattern from a base station in a NTN environment; and a control section that, on the basis of the information on the TDD pattern, determines the TDD pattern having one period formed of a downlink, a guard period, and an uplink in this order and having a period being the integral multiple of a radio frame. The communication section applies the determined TDD pattern to execute transmission and reception to and from the base station.SELECTED DRAWING: Figure 6

The application provides a low-voltage transfer protection device for the end of a DC power supply line of rail transit, comprising a voltage transmitter A, a voltage transmitter B, a low-voltage protection measurement and control unit and a transfer cable, the input end of the voltage transmitter A is connected with the positive pole and the negative pole of the end of the DC power supply line respectively, and the output end is connected with the low-voltage protection measurement and control unit, the input end of the voltage transmitter B is connected with the positive pole of the end of the DC power supply line and the ground wire respectively, and the output end is connected with the low-voltage protection measurement and control unit, and the output end of the low-voltage protection measurement and control unit is connected with the DC distribution system in the traction substation through the transfer cable. And a protection method, whether the voltage measured by the two voltage transmitters exceeds the setting value is judged respectively, if the setting value is exceeded, the DC distribution system controls the corresponding line circuit breaker to transfer. The application significantly improves the reliability, speed and sensitivity of the over-current protection of the DC line, reduces the engineering investment and the operation and maintenance cost.

The invention discloses a high-concurrency access method of a local password service interface and a multi-platform adaptation device, and solves the problems of poor high-concurrency performance and difficulty in cross-platform adaptation of a traditional scheme. The high-concurrency access end is used for constructing an API gateway through asynchronous non-blocking I / O, after protocol analysis and safety verification, a request is input to a four-level priority intelligent task queue, and expenditure is dynamically optimized in combination with a throughput model; tasks are distributed based on a dynamic load balancing mechanism of indexes such as CPU utilization rate and queue length, asynchronous processing and intelligent caching (the hit rate is larger than or equal to 85%) are matched, the throughput is improved by more than two times compared with a traditional scheme, and real-time task millisecond-level response is achieved. And the multi-platform adaptation end is used for generating a feature report through full-dimensional platform detection, matching an optimal algorithm and a hardware module by a self-adaptive execution engine, and unifying an interface to hide a bottom layer difference. Full-link protection and exception handling guarantee that the core service interruption rate is smaller than 0.005%, and the method is suitable for the key fields of finance, power grid dispatching and the like.

The invention relates to the technical field of fire alarm circuits, in particular to a display control link protection circuit of a fire alarm system, which can obviously enhance the electromagnetic compatibility of a display unit, and comprises a system control circuit, a power supply circuit, a communication circuit and a TFT (Thin Film Transistor) screen driving interface circuit, the communication circuit comprises an isolated transceiver U11 with the model of TDA51S485HC, the TFT screen driving interface circuit comprises a TFT screen driving circuit and a TFT screen interface circuit, the TFT screen interface circuit comprises a TFT screen interface J6, and magnetic beads are connected in series on a data bus and a control signal link, which are connected with the TFT screen interface J6, of the single chip microcomputer U1.

The invention relates to the field of data security, and particularly discloses a blood donor personal information security storage and access management method based on cloud computing, which comprises the following steps of: 1, performing full-link protection on the personal information of a blood donor by adopting a three-layer encryption architecture; 2, extracting a gene sequence, combining the gene sequence with the identity identification information, and generating an encryption key through Hash operation; 3, adopting a fusion access control model based on roles and attributes; 4, triggering secondary authentication for the account exceeding the threshold value; 5, calling the identity identification information to carry out biological identification authentication, and accessing the corresponding encrypted information after the biological identification authentication is passed; according to the method, high-risk access is identified by combining historical behaviors and a risk scoring mechanism of a network environment, and threats such as account embezzlement are intercepted through differentiated processing; the uniqueness of biological recognition and a multi-person verification mechanism of family combination authentication solve the problem that traditional passwords are easy to leak, prevent a single person from abusing authority, and realize consideration of security storage and practicability of personal information.

In order to achieve flexible NAV setting of multi-link devices, there is provided methods, devices, a system and a computer-program product. A method, comprises receiving, by a first wireless device f

The invention relates to the technical field of communication link protection, in particular to a link protection method, a link protection model, a server, a system and a storage medium applied to an all-optical intelligent computing center. According to the method, links are divided according to the fault probability predicted by the support vector machine, link protection is carried out by adopting strategies of different priorities based on sub-networks of different fault levels by taking the sub-networks as units, and the fault positioning time is shortened while the positioning precision is improved. The objective of the invention is to solve the problem of how to shorten the fault positioning time and increase the positioning precision.

The application relates to the technical field of optical fiber transmission, and discloses a single-fiber bidirectional optical fiber link in a wavelength division system and a protection method thereof. The single-fiber bidirectional optical fiber link comprises a master device, a master optical splitting device, a first switch module, a second switch module, a main optical fiber, a backup optical fiber, a plurality of slave devices and a control module. The control module controls the on-off state of the first switch module and the second switch module according to the link state between the master optical splitting device and the first-end slave device, the link state between the master optical splitting device and the last-end slave device and the link state between any two adjacent slave devices, and realizes dynamic switching between the main link and the backup link. The technical scheme can extend the traditional point-to-point single-fiber bidirectional link protection to a multi-slave device cascade scene. When the optical fiber between the main side, the backup side or any adjacent slave devices fails, the communication connection between the master device and at least part of the slave devices can still be maintained, so that the link redundancy and the fault recovery capability of the single-fiber bidirectional optical fiber link are improved.

The invention provides a message sending method and device and electronic equipment, and relates to the technical field of communication. In the application, firstly, when a current node determines that a resource reservation protocol (RSVP) message sent by an adjacent node of the current node in a main tunnel is not received, a target data sending tunnel capable of sending an RSVP removal message to a target adjacent node in the adjacent nodes is determined, then whether other nodes exist in the target data sending tunnel is determined, and if yes, the target data sending tunnel is determined to be the RSVP removal message. And if yes, determining whether to send an RSVP removal message to the target adjacent node based on the node types of the other nodes, and if not, sending the RSVP removal message to the target adjacent node. By adopting the mode, the main tunnel can be prevented from being dismounted by mistake under the scene that node protection and link protection are shared, and the service borne in the main tunnel can be effectively processed.

The invention relates to the technical field of metro, and discloses an intelligent guiding robot for coping with large passenger flow of metro, which comprises a metro platform, a main control cabinet, a monitoring camera, a charging cabin, a guiding mechanism and a blocking mechanism, the monitoring camera is mounted at the top end of the main control cabinet; the plurality of charging cabins are arranged in an external area of the subway platform at intervals; the guide mechanism is arranged in one of the charging cabins; and the plurality of blocking mechanisms are arranged in the other charging cabins. According to the intelligent guiding robot for coping with the subway large passenger flow, through intelligent collaboration, dynamic adaptation and full-scene protection, the number of channels is flexibly adjusted according to passenger flow and platform layout, original single guiding is converted into full-link protection, physical isolation and acousto-optic reminding are fused, and the intelligent guiding robot is high in adaptability and high in practicability. A landing technical scheme is provided for efficient and safe operation of subway transportation hubs, the requirement for large passenger flow dispersion in the metro peak period of an ultra-large city is met, and wide popularization value is achieved.

The invention relates to the technical field of electric power communication, in particular to a data encryption transmission system and method for electric power communication, and aims to realize self-adaptive selection of encryption strategies by constructing a multi-dimensional network state sensing model and dynamically monitoring parameters such as link delay and packet loss probability and combining quantitative grading of data tasks. According to the method, one or more encryption links can be flexibly adopted according to real-time network fluctuation and task priority, an active data residue clearing mechanism is introduced, block chain evidence storage and an improved sequence pattern mining algorithm are combined, in addition, through a seamless switching mechanism of main and standby links, the continuity and stability of communication are ensured, and the communication efficiency is improved. And data loss or delay caused by link interruption is avoided. In this way, the technical problem that in the prior art, a static encryption algorithm or a protection mechanism of a single link is emphasized, and self-adaptive adjustment is difficult to carry out according to real-time fluctuation of a network state and the priority of a data task is solved.

The invention provides an instruction interaction method and device for a multi-task computing platform and electronic equipment, and the method comprises the steps: carrying out the semantic deconstruction and interaction element extraction of the demand description of an interaction task in the multi-task computing platform, so as to generate an instruction interaction metadata conformation; creating an exclusive control channel between a sender and a receiver in the multi-task platform according to channel configuration parameters and interaction timeliness requirement elements in the instruction interaction metadata conformation; according to a process identifier and an authority rule in the instruction interaction metadata conformation, establishing bidirectional binding between the interaction processes of the sender and the receiver and the exclusive control channel; under two-way binding permission constraint and channel association, the sender interaction process encapsulates an uplink interaction instruction into an instruction feature embedded data block; under the link guarantee and verification rule of two-way binding, the receiving party interaction process reads the instruction feature chimeric data block from the exclusive control channel so as to respond to the uplink interaction instruction and then package the instruction feature chimeric data block into the feedback data block, and interaction failures are at least reduced.

The invention relates to the technical field of heat dissipation of electronic equipment, in particular to an anti-leakage cold plate type liquid cooling heat dissipation architecture system which is suitable for liquid cooling heat dissipation of equipment with high heat density or high reliability requirements such as universal computer equipment, servers, data center equipment, AI computing equipment, industrial computing equipment and charging equipment. And a full-link protection scene from the cooling distribution unit to the cold plate is covered.

The application discloses a high-speed transmission type optical communication module for network attack resistance, and relates to the field of optical communication.In the device, a transmission link protection unit is used for dynamically disguising link characteristics by polarization modulation and power spectrum shaping to obtain dynamically changed link characteristics; a transmission link positioning unit is used for positioning optical domain attack characteristics and signal distortion states of the transmission link, and is used for performing optical domain attack positioning, link abnormal distortion discrimination and attack point position analysis by using an acoustic time delay fusion algorithm and a graph light distortion fusion algorithm; a transmission priority control unit is used for performing optical domain attack positioning discrimination on the transmission link by using an electrical attack sorting fusion algorithm; and a transmission encryption unit and a transmission link repair unit are cooperatively used for realizing constellation mapping encryption and optical path self-recovery.The application can improve the security and transmission efficiency of optical communication.

A multi-link capable wireless device (multi-link device or 'MLD') may attempt to transmit low latency data on one link. The receiving device may discover that the link is occupied for it by another transmission. Methods, devices, and systems are provided. An exemplary method includes transmitting, by a first wireless device, a first request frame to a second wireless device via a first link, the first request frame requesting transmission of first data to the second wireless device via the first link, and based on the fact that the first wireless device does not receive a first response frame from the second wireless device within a time period from the transmission of the first request frame and the first data comprises low-latency traffic, a second request frame requesting transmission of the first data to the second wireless device via the second link is transmitted by the first wireless device to the second wireless device via the second link.

The invention discloses an efficient rescue system and method for an emergency rescue cabin carried by an unmanned aerial vehicle, and relates to the technical field of disaster rescue. Comprising the following steps: firstly, carrying out comprehensive inspection on equipment, and calculating the endurance of an unmanned aerial vehicle; disaster area static and dynamic environment data and resource deployment data are imported in a layered mode; and finally, establishing a three-layer communication network and executing a stability test. Setting a device data acquisition frequency parameter and a data priority parameter, and starting a multi-device cooperation mode to complete multi-source data acquisition; according to the technical key points, full-state perception and high-reliability communication are integrated, a full-link guarantee system is constructed, the problems of insufficient rescue pertinence and easy process interruption caused by information fault, easy communication interruption and the like existing in traditional rescue are solved, and the technology realizes continuous monitoring of vital signs of the wounded personnel in the whole process from rescue to transfer and in-cabin environment, so that the rescue efficiency is improved. Key data support is provided for medical assistance, it is ensured that the whole rescue process is not interrupted, and the method has good use prospects.