31 results about "Standby redundancy" patented technology

The invention discloses an idle computing power resource dynamic scheduling method based on node allocation, and relates to the technical field of node allocation. Sequentially executing to-be-scheduled calculation tasks to perform lightweight simulation execution to generate task feature vectors, collecting idle node hardware architecture feature data to generate node hardware feature tags, calculating a matching degree based on a bidirectional adaptability evaluation matrix, allocating main execution nodes, and performing task scheduling; the redundancy is determined by combining the task key level and the overall reputation score of the node pool, the standby redundant nodes are allocated for parallel execution, and the closed-loop scheduling process of the consensus verification window period and the arbitration mechanism is synchronously set, so that compared with the prior art, the accuracy of idle-time computing power scheduling and the credibility of an execution result can be improved, and the scheduling efficiency is improved. Therefore, the problems of low resource utilization rate and high error rate of calculation results caused by disjunction of task and node adaptation and lack of effective verification in the execution process in the existing idle computing power scheduling can be solved.

The invention provides an intelligent circuit breaker fault detection and maintenance method based on double MCUs, and the method achieves the automatic uninterrupted switching when a single MCU breaks down through the main and standby redundancy design, avoids the system breakdown, and greatly improves the usability and reliability. Quantitative scoring of the state of the main control MCU is achieved through a health assessment self-checking algorithm, and the accuracy of fault judgment is guaranteed. Through an intelligent switching arbitration mechanism, on the basis of switching probability calculation and confidence evaluation (health degree stability), a secondary confirmation mechanism is matched, and the error switching risk is effectively reduced. Line fault and MCU hardware fault detection is supported, and fault self-healing is achieved. And after the faulted MCU is recovered, the master and standby roles are automatically returned, so that the manual operation and maintenance cost is reduced.

The invention relates to the technical field of production line data management, in particular to a data acquisition system based on a contact lens production line, and aims to solve the problems of equipment information island, insufficient data real-time performance, poor storage reliability and the like of a traditional data acquisition mode. Through multi-source heterogeneous data standardized access, edge computing real-time processing and distributed database technologies, the collection efficiency and integrity of key data such as process parameters, equipment states and carrier plate circulation information are remarkably improved. Through an industrial-grade hot standby redundancy transmission channel and a persistent storage mechanism, the risk of data loss caused by network fluctuation or equipment failure in the prior art is solved, high-reliability storage of high-frequency dynamic parameters such as transfer printing positioning precision, filling pressure and mold closing temperature is ensured, and a stable data basis is provided for production tracing and process optimization. Meanwhile, a load balancing module is provided to ensure load balancing of server nodes receiving data, and a stable and reliable working environment of subsequent links is ensured.

This application proposes a fault redundancy switching method and system for urban rail transit switch machines. Belonging to the field of switch machine fault diagnosis, the method includes: determining whether a switch machine has malfunctioned according to preset unified rules; when a fault is determined to have occurred, collecting relay timing information and indicated voltage information during the switch machine's operation; based on the relay timing information and indicated voltage information, determining whether the fault is indoor or outdoor according to preset diagnostic logic; if it is an indoor fault, performing two-level safety verification: the first level verifies and generates a switching request, and the second level verifies the interlocking safety conditions; only when both levels of verification pass, driving the redundancy switching circuit to switch the control circuit from the primary circuit to the backup redundant circuit; if it is an outdoor fault, generating outdoor fault alarm information. It can accurately locate indoor and outdoor faults and automatically perform safe redundancy switching in the event of an indoor fault.

The invention discloses a hot standby redundancy switching method and system based on credible state strategy judgment and a medium. The method comprises the following steps: acquiring DCS input data; data verification is carried out on DCS input data based on a redundant communication network between the master controller and the slave controller; based on a trusted state strategy synchronization mechanism, performing service data synchronization on the verified DCS input data between the master controller and the slave controller; the service data synchronization comprises master-slave controller credible state strategy data synchronization and master-slave controller service data synchronization; when the master controller diagnoses a self-diagnosis fault or a communication fault, whether the master controller and the slave controller need to be switched or not is judged by combining the state of the slave controller; if switching is needed, according to the fault state, master-slave arbitration is carried out based on a preset switching condition truth table, and switching of master-slave controller state identification is completed. According to the invention, full-station communication fault detection and master-slave switching of the domestic nuclear safety level DCS field control station are realized, and the safety of the domestic nuclear safety level DCS is improved.

The invention discloses a shunting monitoring system for a railway, and belongs to the technical field of railway safety monitoring, the shunting monitoring system comprises a vehicle-mounted device and a ground device, the vehicle-mounted device comprises a dispatching and monitoring host and a locomotive sensor, the ground device comprises a ground sensor, the locomotive sensor is in communication connection with the ground sensor, and the locomotive sensor is in communication connection with the ground sensor. The dispatching and monitoring host comprises a monitoring host; and the case is provided with a plurality of function reservation positions. Compared with the prior art, the shunting monitoring system for the railway has the advantages that full-link redundancy from data processing, communication to power supply is constructed through hot standby redundancy of the information processing unit, double-set parallel work of the machine sensing communication unit, a double-path power supply and a standby battery, the fault-tolerant capability of the system is greatly improved, and the uninterrupted operation time of the system is greatly prolonged. Key vehicle-ground communication data are encrypted by adopting an industrial-grade AES encryption algorithm, so that the data are effectively prevented from being maliciously stolen or tampered in a transmission process, and the safety of a shunting instruction is guaranteed.

The invention provides an incremental compiling method and system, electronic equipment and a medium, in the method, after an incremental compiling instruction is responded, whether a reference compiling file exists or not is judged, when it is determined that the reference compiling file exists, an intermediate representation file of a target task and a reference file is generated, and the target task can be compiled by comparing information such as data areas and type definitions of the target task and the reference file. According to the method, only the changed part is updated, the data offset of the unchanged variable is kept unchanged, and the newly added data is stored in the newly added target data area, so that the memory address disorder caused by the layout change of the data area is avoided, and the unmodified variable can be ensured to be continuously operated based on the real-time value before switching. The method does not need to depend on main and standby redundancy configuration, incremental compilation and switching of the controller in a non-restart scene are realized through a compatible data structure design, the application flexibility of the DCS system is remarkably improved, and the problem that the use condition of the DCS system is limited in an incremental compilation downloading scene in the prior art is effectively solved.

The invention discloses a dual-redundancy control method based on a high-performance multi-core processor and a related device, and belongs to the technical field of engine controllers, a dual-redundancy controller in a system comprises a master control unit and a slave control unit, the master control unit and the slave control unit respectively comprise a DSP and an FPGA, the DSP and the FPGA are connected through an EMIF bus, cores 0 are connected through an SRIO, and the cores 0 are connected through an SRIO bus. The cores 1 are connected through UART, and the core 0 is in communication connection with the cores 1; the FPGA of the master control unit and the FPGA of the slave control unit are respectively connected with corresponding cores 1, the core 1 of the master control unit is connected to the FPGA of the slave control unit through an STATE signal, and the core 1 of the slave control unit is connected to the FPGA of the master control unit through an STATE signal; the core 1 of the master control unit and the core 1 of the slave control unit are connected with the FPGA in two ways, one way is connected through a DOG signal, and the other way is connected through a WORK signal. According to the method, the conventional switching problem can be solved through hot standby redundancy switching, and the switching problem under the conditions of processor crash and recovery is solved.

The utility model relates to the technical field of rail transit power supply systems, and discloses a main wiring circuit for enhancing the reliability of an urban rail transit direct current power supply system, which comprises a main / standby medium-voltage alternating current bus, a main / standby direct current bus, a transformer unit, a medium-voltage power supply unit, a direct current power supply unit and a rectifying unit. Through the designed main wiring diagram of the traction substation of the power supply system, the reliability of power supply of the traction substation can be enhanced from the perspective of uninterrupted overhaul and maintenance, main and standby redundancy support and power supply system investment saving; the problems that the site selection of a traction substation is difficult, the investment is increased and the like due to the fact that an urban rail transit power supply system excessively depends on a large bilateral power supply mode to support power supply are solved, and the method has high application and popularization value in the field of urban rail transit power supply systems in China.

The application discloses a kind of dual-redundancy control method and related device based on high-performance multicore processor belongs to engine controller technical field, the system dual-redundancy controller includes main control unit and slave control unit, main control unit and slave control unit respectively include DSP and FPGA, between DSP and FPGA through EMIF bus connection, between core 0 through SRIO connection, between core 1 through UART connection, core 0 communication connection core 1;The FPGA of main control unit and slave control unit is connected corresponding core 1, the core 1 of main control unit is connected to the FPGA of slave control unit by STATE signal, and the core 1 of slave control unit is connected to the FPGA of main control unit by STATE signal;Between the core 1 and FPGA of main control unit and slave control unit, there are two connections, one is connected by DOG signal, and the other is connected by WORK signal.The application not only can solve the conventional switching problem by hot standby redundancy switching, but also solve the switching problem under the condition of processor crash and recovery.

The present disclosure relates to a central control unit master-slave synchronization control method, device and control system, the method comprising real-time detection of state information and fault information of a master central control unit; automatic synchronization based on the state information and the fault information, which can realize synchronization consistency after seamless hot standby redundancy switching of the central control unit, effectively guaranteeing safe and reliable operation of the train.

The invention provides a current acquisition module for hot standby redundancy acquisition. The current acquisition module comprises a current sampling circuit and an MCU which are connected with a power supply loop. The current sampling circuit comprises a current sampling terminal, a first redundancy module and a second redundancy module; a precise sampling resistor R1 and a precise sampling resistor R2 are arranged in the current sampling terminal, and the R1 and the R2 are separated through an MOS tube switch U1; r1 and R2 are precision resistors and convert external current signals into voltage signals and collect the voltage signals; the current flows through the R2 to generate a sampling signal for the module to sample an actual signal; a current flows through the R1 to generate a diagnosis signal for ensuring the reliability of a sampling signal, and the two signals are transmitted to the ADC circuit in a time-sharing manner through the rear-end switching circuit and finally transmitted to the MCU.

The invention discloses a redundancy method and device of a compatible industrial data acquisition system, a medium and a product, and relates to the technical field of data processing.The method comprises the steps that a first acquisition station and a second acquisition station are started, and the first acquisition station is initially in a working state; the second acquisition station is initially in a sub-working state and acquires communication data between the first acquisition station and the second acquisition station; data information of the collection objects is obtained, wherein the data information comprises the number of the collection objects and whether the collection objects can support data collection by two or more collection stations at the same time or not; and the first acquisition station and the second acquisition station execute any one of a warm standby redundancy strategy, a hot standby redundancy strategy or a load balancing redundancy strategy according to the communication data and the data information. According to the application, the problem that the existing industrial control system cannot adaptively adjust the working strategy in the case of complex equipment is solved; the technical effects of improving the compatibility of the industrial control system and improving the reliability and efficiency of data acquisition are achieved.

This disclosure provides a control method and train for a clustered hot standby redundancy system, which can be applied to the fields of vehicle control technology and communication. The control method includes: determining the priority of the target system to which the target device belongs or the command operation status of the target device in the clustered hot standby redundancy system according to the device attributes of the target device. The target system includes multiple devices, and the clustered hot standby redundancy system includes multiple systems. The multiple systems are classified into a master system and a hot standby system. The master system is used to manage the communication data of the train, and the hot standby system is used to back up the communication data. The master and standby systems are switched according to the priority or command operation status.

The invention discloses a high-speed serial bus hot standby redundancy system, method and equipment, and belongs to the field of serial communication, a hot standby redundancy module is mainly realized through an FPGA (Field Programmable Gate Array), the hot standby redundancy module is arranged in a host and a slave, and the hot standby redundancy module comprises an SERDES receiving and transmitting module which comprises an SERDES transmitter and two SERDES receivers; the SERDES transmitter is used for simultaneously transmitting data frames to the two high-speed serial physical buses in a redundant manner; the two SERDES receivers are used for respectively receiving data of the two high-speed serial physical buses to form a double-SERDES receiving channel; the hot standby redundancy top layer module is used for receiving data of the double SERDES receiving channels and selecting one SERDES receiving channel as a target data channel; generating a response frame according to the data of the target data channel; and the sending module is also used for sending the data to be sent or the response frame to the SERDES sender. According to the invention, the reliability, stability and traceability of data transmission between the host and the slave are improved, and the CPU is not perceived.

The invention provides an unmanned ship energy management system and method based on a wave recording technology, and aims at ship power monitoring equipment, the state parameters of power system composition equipment are collected at high frequency through the wave recording technology, and high-frequency signals are analyzed and judged in real time to complete independent judgment of faults and real-time fault reconstruction. And automatic reconstruction and fault isolation of the power system are realized. According to the invention, a multi-channel high-frequency acquisition technology is adopted to realize limited discrimination of faults of a power system, and the defect that an existing energy management system cannot acquire transient signals is overcome. According to the invention, fault judgment is carried out through independent wave recording equipment, so that equipment fault judgment and equipment are decoupled, and self-composition equipment of a power system is not needed for judgment. According to the invention, the hot standby redundancy mode of the field control module is utilized, the control reliability is ensured, and the functions of automatic control, fault reconstruction and the like of the power system are realized.

The application discloses a kind of automatic detection and switching system of shipborne satellite communication antenna key device, belong to the field of satellite communication device automatic detection and health management of shipborne;On the basis of reliability analysis to each device of system, key device is designed with hardware hot standby redundancy, and on software, the state of each device of system is detected in various aspects such as communication, data and operating state in hierarchical manner, then, according to the actual situation and inherent attribute of system, the switching priority of equipment is set, and automatic switching is carried out in combination with equipment detection state, to realize the automatic guarantee of task under the condition of no human intervention.The method greatly improves the reliability and health management level of system.

According to the braking control, freight vehicle power supply and information management method, device and system, a real-time communication network among the devices is formed through a three-dimensional multi-dimensional communication mode or a communication technology in the three-dimensional multi-dimensional communication mode, time is calibrated through the network or a satellite and the like for synchronization, and the vehicle is provided with an electric pneumatic braking control unit, an electromagnetic valve, a pressure sensor and the like. Electric pneumatic braking control of the rolling stock is achieved through an electric signal transmission instruction, the braking and relieving time is shortened, the braking and relieving consistency is improved, meanwhile, automatic air braking is reserved, and hot standby redundancy of train braking is provided; stable and continuous power is obtained from a locomotive through a redundant through power line, or a motor is driven to generate power through rotation of wheels or axles of the locomotive, and an energy storage unit is configured to provide stable and continuous power; a vehicle information management method is provided.

The application provides a train head-tail redundancy system and a control method, the train head-tail redundancy system comprising: a main operation unit, configured to generate an inquiry command and a time calibration signal; a function unit, configured to receive the inquiry command sent by the main operation unit at a target period, and send inquiry information corresponding to the inquiry command to the main operation unit; a slave operation unit, configured to receive the time calibration signal sent by the main operation unit at the target period, and calibrate the time of the slave operation unit according to the time calibration signal; and the slave operation unit is configured to send the inquiry command to the function unit at the target period in the case that the main operation unit fails, and receive the inquiry information sent by the function unit. The system can normally collect train data when the main operation system fails, and keep the clocks of the two operation systems consistent, so that the continuous transmission and reception of information of the hot standby redundancy system is realized.

The invention provides a failure line bit redundancy replacement method and device, and relates to the technical field of storage. The failure line bit redundancy replacement method comprises the following steps: configuring a preset bit sequence for current storage equipment through a first register; and selecting a target replacement method for the current storage device through the second register. Judging whether each bit line under the current storage array to be detected is in an error state or not according to a preset bit sequence; and if yes, screening a target resource partition corresponding to the bit line in the error state in a target redundant resource storage array corresponding to the current storage array to be tested, and performing redundant replacement on the bit line in the error state based on the target resource partition by using a target replacement method. On the basis, the check of the bit line under each storage array can be quickly realized, and meanwhile, the defective bit line is quickly replaced with a standby redundant resource through a freely selected replacement scheme of register configuration, so that the overall fault-tolerant capability of the storage system is improved.

The application discloses a kind of DC transformer dynamic hot standby redundancy switching control method and device, wherein method includes: obtaining the actual detection voltage of operating power module in current detection period, obtain the difference between its actual detection voltage and module rated voltage;Difference absolute value is sorted, the operating power module of third preset quantity of difference absolute value maximum is obtained, third preset quantity is equal to the smaller of the value in first preset quantity and second preset quantity;Corresponding operating power module is exited from running state and put into hot standby state with third preset quantity of difference absolute value maximum, and corresponding hot standby power module is obtained and put into running state simultaneously.By voltage detection to operating power module, the operating power module corresponding to the maximum absolute value of the difference between module rated voltage is obtained, and it is exchanged with the same number of hot standby power module, to reduce the impact current of high-voltage side and low-voltage side when module bypass instant.

The application discloses a kind of automatic redundant switching train monitoring display control system and method, it is related to automatic redundant control technical field, when monitoring display fails during train operation, it is difficult to realize the automatic redundant switching of main and standby monitoring display system, and when heartbeat signal detection is carried out, the technical problem that dynamic detection cycle can improve detection safety is ignored;The application is through the minimum system that display device is most prone to failure to carry out hot standby redundancy, when FPGA is monitored to main control system exception by the dynamic sending cycle of heartbeat signal, immediately automatically switch to standby system;The application can activate standby system immediately when main control system fails, take over, ensure the continuous work of monitoring display during train operation, avoid information loss or operation interruption caused by display failure.

The invention provides a physical cell identification code processing method for main and standby redundant networking and communication equipment, and relates to the technical field of communication. The method is executed by a first base band processing unit (BBU), and comprises the following steps: responding to a first radio remote unit (RRU) which is switched to the first BBU, and determining first neighbor cell PCI information corresponding to the first BBU; determining a PCI value of a first cell corresponding to the first RRU from a PCI pool of the first BBU according to the PCI information of the first adjacent cell; wherein the PCI pool comprises PCI values of different modulo 3 remainders. According to the scheme, the PCI value for establishing the service cell is dynamically selected, so that the problem of PCI mode 3 interference between adjacent cells after multiple times of switching of a base station due to faults of a BBU (Base Band Unit) or an RRU (Remote Radio Unit) and the like can be effectively solved.

The utility model discloses an input signal acquisition board card, which comprises a main system input board card and a standby system input board card, and the main system input board card and the standby system input board card are in redundant connection. The main system input board card comprises a main system main control chip and a plurality of main system units; the standby input board card comprises a standby main control chip and a plurality of standby units; each main system unit and each standby system unit respectively comprise a signal input circuit, a self-checking circuit and a signal acquisition circuit. According to the input signal acquisition board card architecture with hot standby redundancy and double-path decision, the main system input board card and the standby system input board card both carry out double-path voting, the main system input board card and the standby system input board card are hot standby for each other, the availability and the reliability of the input signal acquisition board card are greatly improved, and the effectiveness of input signals can be ensured.

The invention discloses an electric power resource day-ahead optimization scheduling method considering frequency security constraints, which is characterized in that a scheduling model considers frequency adjustment of new energy on the basis of a conventional unit, and introduces the frequency security constraints into constraints of the scheduling model, which specifically comprise a system minimum inertia demand constraint and a system minimum primary frequency modulation demand constraint; according to the scheduling method provided by the invention, planning modes of thermal power generating units, new energy units, battery energy storage output, frequency modulation standby and the like are reasonably arranged, and a frequency modulation standby scheme of the system is finely and dynamically arranged, so that the frequency supporting capacity of the system suffered from expected accident N-1 disturbance and source load fluctuation disturbance is effectively improved; resource waste caused by standby redundancy is avoided, and stable frequency and economic operation of a power system are guaranteed.

According to the PLC one-main multi-standby redundancy control system and the control method thereof provided by the invention, the standby controller is set to be in the control task suspension execution state, and the control task suspension execution state is immediately switched to the control task normal execution state after the wake-up signal is received; therefore, an operating system signal waiting mechanism is applied to the one-main multi-standby redundancy control system, the CPU occupancy state approaches to zero when the standby controller is in a control task suspension execution state, resource consumption is greatly reduced, meanwhile, millisecond-level wake-up capacity is reserved, the energy saving performance of cold standby and the response speed of hot standby are both achieved, system resource consumption is greatly reduced, and the service life of the system is prolonged. Compared with a traditional hot standby scheme, energy is saved remarkably, and the service life of equipment is prolonged.

A multiple unit vehicle brake control system, comprising a brake control device (1), an operating air reservoir (21), an auxiliary air reservoir (22), an air brake valve (11) and an electro-pneumatic brake module (12), wherein the electro-pneumatic brake module (12) includes an electronic brake control unit (121), an electro-pneumatic valve (124), a changeover valve (125), a shutoff valve (127) and a two-way valve (126), and further comprises a pressure relief valve (15) and a relay valve (13). The system can switch between electro-pneumatic braking and air braking, and transmits a pre-control pressure to the relay valve by means of the two-way valve. The system integrates two braking control modes: automatic air braking and direct electro-pneumatic braking, wherein the electro-pneumatic braking serves as the main braking mode, and the automatic air braking serves as hot standby redundancy, thereby improving the braking reliability, and ensuring the operational safety of a multiple unit train.

The invention discloses a fusion equipment control method based on a rail transit network, fusion equipment and a storage medium, and relates to the technical field of rail transit trains, and the method comprises the steps: receiving a user fusion function enabling instruction, configuring rail transit networking parameters and security policy parameters of a switching chip and a firewall chip, and forming a fusion hardware architecture; analyzing a function start-stop sub-instruction in the instruction, controlling resources corresponding to the firewall module, the switch module and the dormancy non-enabled module, and outputting a function operation state; starting a main and standby redundancy configuration synchronization process according to the state, and setting a built-in related unit according to a redundancy configuration strategy to obtain a main and standby redundancy system; and in response to a system verification instruction, verifying master-slave synchronization of the configuration file and the operation event, generating a configuration adjustment strategy and optimizing the system. According to the method and the device, the fusion function starting instruction configuration parameters are received, the unused resources are dormant, and the main and standby synchronous verification is performed to optimize the rail transit system, so that the problem of poor rail transit quality is solved, and the stability of the rail transit fusion equipment is improved.

The invention discloses an intelligent power generation control system and method for an open development environment, and relates to the technical field of power generation control, and the system comprises an autonomous controllable DCS basic platform which employs a domestic multi-core CPU controller, is equipped with a high-speed signal collection module, is constructed based on a domestic operation system, and is designed based on dual-computer hot standby redundancy; the intelligent monitoring module fuses AI and a mechanism model, integrates various algorithms and functions, quantifies the health state and performs early warning, and is internally provided with an expert system; the centralized monitoring module is based on the industrial Ethernet, adopts a standard communication protocol and develops a visual general drawing; the unit-level one-key start-stop control module develops a special algorithm and controls a start-stop process through configuration logic; and the open development environment module is preset with various data interfaces and a packaging algorithm warehouse, adopts zero-code graphical configuration, and supports rapid development and third-party integration of the model. According to the invention, DCS autonomous controllability is realized, intelligent monitoring replaces manual operation, risks are reduced, and safe and efficient operation of a unit is guaranteed through whole-process optimization.

The application discloses a high-speed serial bus hot backup redundancy system, method and equipment, belongs to the field of serial communication, and mainly realizes a hot backup redundancy module through an FPGA. The hot backup redundancy module is arranged in a host computer and a slave computer and comprises a SERDES transceiving module, a hot backup redundancy top layer module and the like. The SERDES transceiving module comprises a SERDES transmitter and two SERDES receivers. The SERDES transmitter is used for redundantly transmitting data frames to two high-speed serial physical buses simultaneously. The two SERDES receivers are used for respectively receiving data of the two high-speed serial physical buses, and form double SERDES receiving channels. The hot backup redundancy top layer module is used for receiving data of the double SERDES receiving channels, selecting one SERDES receiving channel as a target data channel, generating a response frame according to data of the target data channel, and sending the to-be-sent data or the response frame to the SERDES transmitter. The application improves the reliability, stability and traceability of data transmission between the host computer and the slave computer, and is not sensed by a CPU.