31results about How to "Achieve redundancy" patented technology

The invention relates to building structure monitoring, in particular to a monitoring device for health of a large-span building structure and an Internet of Things system. Which comprises an unmanned aerial vehicle and a monitoring server, and is characterized by further comprising a passive sensor and a reading transmission module, and the passive sensor is used for collecting state information of a building structure and wirelessly uploading the state information to the reading transmission module; the reading transmission module wirelessly uploads the state information of the building structure to the monitoring server. According to the invention, the RFID is combined with the sensor, so that the wiring work is omitted, and the workload of implementation and maintenance is greatly reduced; data are obtained through automatic cruise of the unmanned aerial vehicle, labor is saved, and punctual data are obtained; the Internet of Things is further wireless, the sensor at the tail end supplies power and obtains data in an RFID wireless mode, the most tedious wiring work is omitted, and arrangement and compensation of the Internet of Things sensors are facilitated.

The invention discloses a vehicle steering control method, a vehicle steering system and a vehicle, the vehicle comprises a distributed driving system, and the vehicle steering control method comprises the steps that according to a steering wheel target steering angle and a steering wheel actual steering angle, a steering wheel steering angle error is determined; determining a target differential torque of a steering wheel according to the steering wheel angle error; and according to the target differential torque of the steering wheel, a driving motor corresponding to the steering wheel in the distributed driving system is controlled, so that the target differential torque of the steering wheel is distributed to the steering wheel. According to the method and the system, the problem of inaccurate steering possibly caused by a fault of a vehicle steering system can be solved, additional hardware does not need to be added, the manufacturing cost is low, the vehicle structure and the control design are simple, and the occupied space is saved.

The invention provides an automobile drive-by-wire chassis multimode redundancy integrated control system and application thereof. The system comprises a whole vehicle sensor unit, a vehicle driving state fault-tolerant reconstruction estimator, a vehicle drive-by-wire chassis redundancy integrated controller, a vehicle drive-by-wire chassis execution controller, a vehicle drive-by-wire chassis execution subsystem, a power subsystem and a communication subsystem which are connected in sequence, the communication subsystem achieves information transmission, the whole vehicle sensor unit provides sensor signals and monitors the vehicle driving state, and the vehicle driving state fault-tolerant reconstruction estimator provides vehicle stability control parameters for the vehicle drive-by-wire chassis redundancy integrated controller. The automobile drive-by-wire chassis redundancy integrated controller provides ideal execution parameters for the automobile drive-by-wire chassis execution controller, and the automobile drive-by-wire chassis execution controller provides execution actions for the automobile drive-by-wire chassis execution subsystem. The safety, the stability and the reliability of the intelligent driving automobile are improved.

The invention relates to a multi-interface steering control unit which is suitable for a ship automatic steering system. The unit comprises a dual CAN bus system, a steering control panel, a power supply module, a signal conversion module and an emergency power supply module. Redundant data transmission is achieved through a double-CAN bus system, it is ensured that signals can still be normally transmitted when a single bus breaks down, a PID control algorithm is arranged in the steering control panel, the steering angle and speed can be accurately calculated, a signal conversion module can convert digital signals into analog voltage signals so as to meet the control requirement of an electromagnetic valve or a proportional valve steering engine, and the control requirement of the electromagnetic valve or the proportional valve steering engine can be met. The system further has an emergency steering mode and a self-diagnosis function, and it is ensured that the system can be rapidly switched to an emergency state when the main system fails. The multi-interface steering control unit adopts a modular design, so that the multi-interface steering control unit is easy to maintain and expand and is suitable for various types of ships, and the reliability and the operation convenience of a steering system are improved.

The invention provides an electronic mechanical braking system of a multi-axle vehicle, which comprises at least two axle control units which are in communication connection with a braking request mechanism for generating a braking request signal and are used for receiving the braking request signal and formulating a corresponding control instruction, and each axle control unit at least corresponds to one axle; the braking devices are arranged at the two ends of the axle and used for generating braking force according to the control instruction, and the axle control units are in communication connection with the braking devices at the two ends of the corresponding axle; and at least one of the shaft control units is in communication connection with the braking devices on at least two shafts through a main network. At least one axle control unit is arranged as a fat axle control unit, the purpose of controlling brake devices at the two ends of a plurality of axles at the same time is achieved, the number of the axle control units is reduced, the structure of an electronic mechanical brake system is simplified, and the brake devices at the two ends of each axle are in communication connection with each axle control unit; and communication redundancy of the electronic mechanical braking system is realized.

The present invention discloses a touch pressure sensor, wherein a first electrode layer can form a capacitor with a part touched by a user, thereby locating the area touched by the user; at the same time, when the user presses the touch pressure sensor, the size of the capacitor between the second electrode layer and the third electrode layer can be changed, thereby detecting the size of the user's pressing force. The above-mentioned touch pressure sensor can detect the size of the user's pressing force while locating the user's touched area, thereby reducing the false trigger rate of the touch pressure sensor. At the same time, the above-mentioned signal for locating the user's touched area and the signal for detecting the size of the user's pressing force will be distributed on different signal lines, thereby achieving redundancy of the above-mentioned signals and increasing the reliability of the touch pressure sensor. The present invention also provides a touch pressure switch, which also has the above-mentioned beneficial effects.

The utility model discloses a common direct current bus multi-stage inversion parallel speed regulation system of a crane. The common direct current bus multi-stage inversion parallel speed regulation system comprises a switch, a touch screen, a PLC, a plurality of rectification units, a parallel operation module, a rectification control module and a plurality of inverters. According to the utility model, a plurality of rectification units are used in parallel and are matched with the parallel operation module, so that the problem that the power of a single rectification unit cannot meet the power of complete equipment is solved, the output power is improved, extensive expandability is achieved, and the impact on a power grid is greatly reduced; the system has two control modes of communication control and terminal control, the PLC and each inverter adopt a PN bus communication mechanism through the Ethernet to realize communication control, the on-off state of a relay coil connected with an output module of the PLC is controlled through a manual operator to realize terminal communication, and when system communication fails, the terminal control mode can be switched through parameter setting, so that the system communication failure is avoided. Redundancy of two control modes is achieved, and safe operation of equipment is guaranteed.

The utility model discloses an emergency defoaming device for a nuclear power plant. The emergency defoaming device comprises an execution system, a control system and a power supply system, according to the emergency defoaming device for the nuclear power plant, the main flow pipeline, the branch flow pipeline and the spraying assembly are arranged, so that one solvent tank can be used for filling a plurality of defoaming pools at the same time. Meanwhile, the video monitoring module is utilized, the flow and concentration of defoaming spraying can be automatically adjusted according to the foam amount collected by the video monitoring module, high efficiency is achieved, the operation cost is reduced, the function of intelligent decision control can be achieved through the arrangement of the data processing module, and the purpose of unmanned defoaming is achieved. And a remote control module and a wireless transmission module are also arranged, so that the functions of real-time monitoring and remote operation are realized, and the cost and risk of manual intervention are reduced. In addition, a generator, a photovoltaic panel and an energy storage device are further arranged, traditional mains supply is combined with new energy power supply of wind energy and solar energy, and redundancy and reliability of power supply are achieved.

The present invention relates to a drive transmission system comprising: a drive motor; a driven vehicle axle (5), which is a rear axle; a vehicle transmission (2), which has a transmission stage and is used to transmit a driving force to the vehicle axle, the transmission stage can be switched by means of a transmission controller (4), and the vehicle transmission can also be switched to a neutral position by means of the transmission controller; a motor controller (3), the drive motor can be operated in a motor operation mode and a neutral mode by means of the motor controller. The motor controller and the transmission controller are connected to each other by at least two control lines, and the control lines are used to transmit control instructions between these controllers. The motor controller can transmit the control instructions to the transmission controller via at least one control line, so that the transmission controller switches the vehicle transmission to a neutral position. Redundant monitoring of the drive motor and / or the vehicle transmission is achieved. The present invention also relates to a method for controlling a drive transmission system and a motor vehicle comprising the drive transmission system.

The present invention discloses a rail transit locomotive vehicle reconnection system and a reconnection method, the system includes at least two wireless backbone network modules arranged in the locomotive vehicle driver's cab, the wireless backbone network module of the driver's cab at one end of the locomotive vehicle is connected to the MVB bus of the locomotive vehicle, the wireless backbone network module of the driver's cab at the other end of the locomotive vehicle corresponds one-to-one with the wireless backbone network module of the driver's cab at one end of the locomotive vehicle and the wireless backbone network module of the driver's cab at one end of the locomotive vehicle, the wireless backbone network module of the driver's cab at one end of the locomotive vehicle and the wireless backbone network module of the driver's cab at one end of the other reconnected locomotive vehicle are connected to the same Ethernet bus, the wireless backbone network module of the driver's cab at the reconnected end of the locomotive vehicle is wirelessly connected to the wireless backbone network module of the driver's cab at the reconnected end of the other reconnected locomotive vehicle; the wireless backbone network modules of the driver's cab at the same end are connected to each other to realize data interaction between different Ethernet buses. The present invention has hot standby redundancy performance and can ensure the safe operation of locomotive vehicles.

This application provides a method and apparatus for determining the air supply strategy of a thermal management combined power unit, belonging to the field of aviation electromechanical technology. The method provided includes: acquiring the operating state parameters of the thermal management combined power unit; inputting the operating state parameters into a pre-trained prediction model to determine the air supply control parameters; training the prediction model using training samples, wherein the training process of the prediction model is based on exhaust temperature constraints, compressor surge margin constraints, fuel temperature constraints, and air supply flow constraints to construct a target loss function; controlling the distribution of cooling airflow in the cabin air supply circuit according to the cooling turbine outlet split ratio, controlling the distribution of fuel in each fuel branch according to the first fuel branch split ratio, the second fuel branch split ratio, and the third fuel branch split ratio, and controlling the air supply temperature entering the cabin according to the cabin air supply temperature. The method and apparatus provided in this application can solve the air supply control problem under multiple constraint coupling.

This application relates to the field of electromagnetic propulsion technology, specifically disclosing a double-sided long stator linear drive system, including multiple subsystems and a main controller. Each subsystem includes an equal number of linear motor stator segments, six-phase switches, position detection devices, a common AC bus for the subsystem, and a subsystem control bus. The linear motor stator segments are connected to the common AC bus of the subsystem through corresponding six-phase switches, and then connected to the system common AC bus formed by the subsystem bus interfaces, which is connected to a six-phase converter composed of three-phase converters distributed in each subsystem. Each position detection device is connected to the system control bus through the subsystem control bus, and then to the main controller. The main controller controls the switching of each linear motor stator segment according to the installation order of the subsystems and the running position of the linear motor mover measured by the position detection devices. The subsystems can be randomly ordered and assembled without affecting the system operation, exhibiting good mobility.

The invention discloses an enthalpy-increasing air conditioning system, a control method of the enthalpy-increasing air conditioning system and electronic equipment. The enthalpy-increasing air conditioning system comprises an indoor heat exchanger, a compressor, an outdoor heat exchanger, an economizer, a first expansion valve and a second expansion valve which are sequentially connected. The fourth end of the economizer is connected with an enthalpy increasing opening of the compressor and used for conducting air supplementing and enthalpy increasing on the compressor. The first branch is connected with the outdoor heat exchanger, the second branch is connected with the indoor heat exchanger, and the first branch and the second branch are conducted in a refrigeration mode. Pipeline redundancy is reduced, the heat exchange efficiency in the refrigeration mode is optimized, air supply and enthalpy increase of the compressor in the refrigeration mode are achieved, the working performance of the compressor is improved, and therefore the refrigeration energy efficiency is improved, the compressor with the smaller displacement can be selected under the condition that the air conditioning system meets the same refrigeration capacity requirement, and the energy consumption is reduced. The cost is reduced, the size of the air conditioning system is reduced, and the requirements for high efficiency and light weight of the automobile air conditioning system are met.

This application provides a method and apparatus for determining the air supply strategy of a thermal management combined power unit, belonging to the field of aviation electromechanical technology. The method provided includes: acquiring the operating state parameters of the thermal management combined power unit; inputting the operating state parameters into a pre-trained prediction model to determine the air supply control parameters; training the prediction model using training samples, wherein the training process of the prediction model is based on exhaust temperature constraints, compressor surge margin constraints, fuel temperature constraints, and air supply flow constraints to construct a target loss function; controlling the distribution of cooling airflow in the cabin air supply circuit according to the cooling turbine outlet split ratio, controlling the distribution of fuel in each fuel branch according to the first fuel branch split ratio, the second fuel branch split ratio, and the third fuel branch split ratio, and controlling the air supply temperature entering the cabin according to the cabin air supply temperature. The method and apparatus provided in this application can solve the air supply control problem under multiple constraint coupling.

The invention discloses a control system of a safety controller, the safety controller and a subsea Christmas tree, and relates to the technical field of electronic information. The control system of the safety controller at least comprises a first control board card, a second control board card, a first CAN communication channel and a second CAN communication channel, information interaction is carried out between the first control board card and the second control board card through the first CAN communication channel and the second CAN communication channel; the first control board card and the second control board card have the same structure; the first control board card comprises a first control module, a second control module and a dual-channel isolation module; the first control module and the second control module are electrically connected through the dual-channel isolation module, and data comparison verification and information synchronization are carried out between the first control module and the second control module through the dual-channel isolation module. And a reliable control board card can be provided for underwater operation of the safety controller. And a redundant control board card is provided, so that the reliability of the system is improved.

The invention discloses a system and an implementation method based on load balancing and port aggregation, and belongs to the technical field of communication, and the system comprises a load balancer which is responsible for receiving a client request and distributing the request to a back-end server according to a certain algorithm; the link aggregation controller is used for managing data flows among the plurality of physical ports and realizing link redundancy and load sharing; and the back-end service layer is composed of a plurality of servers. Requests are distributed to a plurality of back-end servers through the load balancer, the continuity of the whole service is not affected even if a certain server breaks down, meanwhile, link redundancy is achieved through the link aggregation technology, the system can continue working through other links even if a certain physical link fails, and the service efficiency is improved. And the stability and the reliability of the system are greatly improved.

The embodiment of the utility model provides a high-temperature gas cooled reactor primary loop instrument pipe isolation valve control and power supply circuit. The control circuit comprises an isolation control loop; the isolation control loop comprises a leakage protection switch and an isolation valve control module which are connected in series; the leakage protection switch is used for being closed when an instrument pipe leakage signal is received. The isolation valve control module is used for being electrically connected with an instrument pipe isolation valve, and when the isolation valve control module is powered on, the instrument pipe isolation valve is controlled to be closed. According to the embodiment of the invention, through serial arrangement of the valves and protection signal expansion of the relays, equipment investment of the protection system is reduced, meanwhile, certain redundancy is achieved, through independent design of a power supply of the isolation valves, electrical isolation of the isolation valves of all channels is achieved, enough redundancy is achieved for faults of a single instrument pipe, and the reliability of the system is improved. And the isolation function of the primary loop instrument pipe can be reliably realized.

The utility model discloses a novel EMS energy management system and a communication system, the EMS energy management system comprises a plurality of energy storage containers, a control unit and an EMS, each energy storage container is internally provided with an energy storage module, a plurality of energy storage converters, a first unit switch and a second unit switch, one energy storage container is defined as a first energy storage container, a first unit switch of the first energy storage container is connected with first unit switches of other energy storage containers, and a second unit switch of the first energy storage container is connected with second unit switches of other energy storage containers; the control unit comprises a first controller, a second controller, a main network switch and a standby network switch; and the EMS is connected with the main network switch and the standby network switch. Wiring is convenient, and communication is stable.

This application discloses a method, apparatus, device, storage medium, and product for adjusting a trie, relating to the field of data storage technology. The method for adjusting a trie includes: after the nodes of the trie are updated, obtaining the occurrence count of each node in the current trie; determining whether there is a node in the trie whose occurrence count is greater than a preset threshold; if there is a node whose occurrence count is greater than the preset threshold, constructing that node and at least one of its parent nodes as a shared node of the trie, and based on the shared node, merging the child nodes of that node to obtain a structurally adjusted trie. This application compresses frequently accessed nodes into shared nodes, realizing shared storage of characters rather than independent character storage, thereby improving the space utilization of the trie, reducing the redundancy of character storage in the trie, and improving the storage efficiency of the trie.

The invention relates to a drive control circuit and method for a steam turbine speed regulator. The drive control circuit comprises a direct-current power supply input unit and at least one drive branch. The direct-current power input unit comprises a live wire and a zero wire; the number of the driving branches is equal to that of the OPC electromagnetic valves, each driving branch comprises an intermediate relay K1 and a contactor KM1, one end of a coil of the intermediate relay K1 is electrically connected with the live wire, the other end of the coil of the intermediate relay K1 is electrically connected with the zero line, one end of a normally open contact of the intermediate relay K1 is electrically connected with the live wire, and the other end of the normally open contact of the intermediate relay K1 is electrically connected with the zero line. One end of a coil of the contactor KM1 is electrically connected with the other end of the normally open contact of the intermediate relay K1, and the other end of the coil of the contactor KM1 is electrically connected with the zero line. The contactor is driven by the intermediate relay, the intermediate relay K1 serves as a control stage, the coil power consumption is small, direct and safe driving can be achieved through a passive dry contact signal of a steam turbine speed regulator, and the problem that a large-current load impacts a precision controller is solved.

A network node is provided with: a reception unit that receives a registration request from a terminal; a control unit that acquires registration information of a network node that controls registration of terminals belonging to a group including the terminals, and determines, on the basis of the registration information, whether or not a master node passed by the registration request is a different master node from another terminal belonging to the group; and a transmission unit that, if a master node is different from another terminal belonging to the group, transmits, to a network node that manages a subscriber of the terminal, a registration request including an identifier identifying the master node.

The invention discloses a fault-tolerant interleaving DC-DC converter and a control method, the fault-tolerant interleaving DC-DC converter comprises N + 1 phases of interleaving Buck converters, the N phase is a main power phase, and the 1 phase is a redundant power phase; the MOSFET matrix switch and the voltage input end of each phase Buck converter are respectively connected with the input bus through an MOSFET tube, and the voltage output end of each phase Buck converter is connected with the output bus; the first driving circuit is connected with the grid electrode of the MOSFET tube; the second driving circuit is connected with the driving end of the Buck converter; the fault detection circuit is used for monitoring the drain-source electrode voltage of a power MOSFET in each phase of Buck converter in real time and outputting a fault signal when an overcurrent or short circuit fault is detected; and the controller is connected with the first driving circuit, the second driving circuit and the fault detection circuit. The technical problems that an existing fault-tolerant scheme is low in switching speed, high in size cost and sudden in output ripple are solved.

The present invention relates to the technical field of electric energy control equipment, and more specifically, to a switch module device with adaptive load regulation, comprising a switch module body and a load regulation device arranged inside the switch module body. The switch module device with adaptive load regulation monitors the load change in the power system through the control module in the load regulation device, and controls the rotation speed of the driving motor in the driving mechanism, and drives the rotating cylinder to rotate periodically through the driving mechanism, and then controls the number of rod bottom contact rods in several active parts that contact the contact switch on the surface of the touch panel according to the different system loads, so as to control the distribution of power through the switch module body, combine program control and mechanical structure, realize control redundancy, and improve the reliability and safety of the switch module body.

The utility model relates to the technical field of vehicle electric hydraulic braking redundant structures, in particular to an electric hydraulic braking redundant structure suitable for an intelligent driving vehicle. According to the technical scheme, the brake system comprises a brake system, an oil can, an ESC and a wheel edge brake cylinder, and further comprises two electronic hydraulic brakes arranged in the brake system, a brake pedal is arranged in the brake system, the two electronic hydraulic brakes are connected through a CAN line, one electronic hydraulic brake is connected with the pedal, and the other electronic hydraulic brake is connected with the brake pedal. And the other electronic hydraulic brake is connected with an original electronic hydraulic brake system of the vehicle through a CAN (Controller Area Network) line of the vehicle. When one of the electronic hydraulic braking systems fails, the other electronic hydraulic braking system can provide braking force for the vehicle in time, so that the safety of the vehicle during running is greatly improved, the vehicle is prevented from being out of control due to the failure of the vehicle braking system, and serious accidents are avoided.

The invention discloses a carrier rocket maritime launching communication system and communication method, and belongs to the technical field of carrier rocket maritime launching, and the carrier rocket maritime launching communication system comprises a front-end test launch control system, a rear-end test launch control system and a relay wireless communication device. The front-end test launch control system is arranged on a launch ship or an offshore launch platform for bearing a rocket body when the rocket is launched; the rear-end test launch control system is arranged in a land rear-end test launch control hall; the relay wireless communication device is arranged between the front-end test launch control system and the rear-end test launch control system; the front-end test launch control system and the rear-end test launch control system are in real-time wireless communication connection through the relay wireless communication device in a relay wireless communication mode. According to the invention, the communication requirement of offshore launch of the carrier rocket can be met, effective communication of offshore launch of the carrier rocket is realized, and the reliability and communication distance of offshore launch networking of the carrier rocket are greatly improved.

The invention relates to the technical field of information security processing, and particularly discloses a meteorological private cloud information security assessment method based on a distributed architecture, the method comprises the steps of data acquisition, data processing, data storage and security assessment, the security degree is acquired by assessing the data of acquisition equipment, the integrity and confidentiality of the data are ensured, and the security of the data is improved. The method comprises the following steps: matching a data processing mode of meteorological data, obtaining and analyzing data processing information of the meteorological data, obtaining a meteorological data storage category through matching of a meteorological private cloud information platform, evaluating the data storage security degree of the meteorological private cloud information platform, and comparing the data storage security degree with a preset data storage security threshold value. By means of the method, potential safety risks in the data storage process can be found in time, safety evaluation of the meteorological data is completed, it can be ensured that the meteorological data is always kept within a safety range in the collection, transmission and storage processes, and therefore the authenticity of the data is guaranteed, meteorological data errors and abnormal values are reduced, and the data quality is improved.

The invention discloses a brake control device. A brake control apparatus according to an embodiment of the present invention may include: a first valve group including at least one valve disposed in a hydraulic circuit for supplying hydraulic pressure required for braking a vehicle; the first valve driving circuit is used for driving valves included in the first valve group; a first reverse voltage prevention element disposed between the power supply of the first valve drive circuit and the first valve drive circuit to block a reverse voltage generated on the power supply side of the first valve drive circuit; a second valve group including at least one valve disposed in the hydraulic circuit and not included in the first valve group; the second valve driving circuit is used for driving valves included in the second valve group; and a second reverse voltage prevention element disposed between the power supply of the second valve drive circuit and the second valve drive circuit so as to block a reverse voltage generated on the power supply side of the second valve drive circuit.

The utility model relates to the technical field of vehicle brake-by-wire, and discloses a brake-by-wire system with double simulator isolating valves, which comprises a simulator unit. The simulator unit adopts a double-valve design and comprises a first simulator isolating valve and a second simulator isolating valve; the first simulator isolation valve and the second simulator isolation valve are arranged in parallel. The high opening pressure of the electromagnetic valve is guaranteed, the overflowing area of a loop is increased, the foot feeling of a driver is effectively improved, meanwhile, the reliability of the system is improved, and the service life is prolonged.

The invention discloses an aluminum alloy spot welding quality detection method. The method comprises the following steps that S1, magnetic field signals generated in the aluminum alloy spot welding process are collected through a magnetic induction sensor array; s2, performing amplification processing on the magnetic field signal through a signal amplification circuit to obtain a magnetic field amplification signal; s3, carrying out feature signal extraction on the magnetic field amplification signal through a principal component analysis method; and S4, the spot welding quality result of the aluminum alloy is obtained according to the characteristic signals. The method is used for solving the technical problems that a spot welding quality detection method in the prior art has high requirements on a detection surface and is not suitable for aluminum alloy resistance spot welding quality detection.

The invention provides a photoelectric inductor fusion type encoder, which comprises an encoder chip and an encoder coded disc, and is characterized in that the encoder chip comprises a packaging shell, a light source and a receiving wafer, and the light source and the receiving wafer are respectively arranged at two sides in the shell; a light-transmitting sheet for sealing a shell is arranged above the light source and the receiving wafer, an inductance coil which is made of a transparent conductive material and allows light to penetrate through is arranged on the inner side or the outer side of the light-transmitting sheet, and the inductance coil at least comprises a group of exciting coils and a group of receiving coils; the receiving wafer is electrically connected with the inductance coil to acquire an analog signal generated by the inductance coil; the encoder code disc is provided with an optical code channel of a photoelectric encoder, and the front side or the back side of the encoder code disc is provided with a transparent conductive film which forms a conductive rotor equivalent to that in an inductive encoder. The structure is optimized, and fusion of photoelectric detection and inductance detection functions of the encoder is realized.