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45results about How to "Realize mutual backup" patented technology

Power grid dispatching automation main-and-standby system model synchronizing method and synchronizing system thereof

The invention relates to a computer application method in the field of electrical automation and a system using the computer application method, in particular to a power grid dispatching automation main-and-standby system model synchronizing method and a synchronizing system using the power grid dispatching automation main-and-standby system model synchronizing method. A centralized cloud standby dispatching center is built, and whole power grid model united storage of graphs real-time data sections corresponding to a physical network model, a power grid calculation model and a power grid model is achieved. Any model maintenance operation of the cloud standby dispatching center is carried out through a standby dispatching maintenance center, region dispatching centers maintain static models in the jurisdiction scopes of the region dispatching centers respectively, the formed whole power grid model united storage ensures uniqueness of whole power grid models, and a unified model sharing access service mechanism is provided. The models of the region dispatching centers exist in the mode of views of full models, and are in self synchronization, so that service systems of the dispatching center can have access to the whole power grid models through standard and unified data access interfaces.
Owner:STATE GRID CORP OF CHINA +1

Embedded intelligent interactive terminal and communication method thereof

The invention discloses a multifunctional intelligent interactive terminal, which comprises a data processing and controlling module, a data storage module, a TCP/IP (transmission control protocol/Internet protocol) encryption module, a wire communication module, a wireless communication module, an uplink communication module and a downlink communication module. A communication method for the terminal comprises the processes of data acquisition, data processing and data transmission and supports wire and wireless communication channels, wherein the wire communication mode is Ethernet communication, and the wireless communication is a 3G mode. The uplink communication mode supports an Ethernet channel and a 3G wireless channel, one of the Ethernet and the 3G is configured as a main channel, the other channel is configured as a standby channel, and the channels are mainly used for remote communication of the equipment; and the downlink communication mode supports the Ethernet channel, and is mainly used for local communication of the equipment to meet the communication of a local area network in industrial application. The terminal has the advantages of convenience for operation, reliable operation, high information transmission quantity and high transmission speed, can provide convenient and efficient power utilization information and power utilization service with strong interactivity for users, and realizes the function of an intelligent power utilization interactive service platform.
Owner:JIANGSU ELECTRIC POWER CO +2

A software starting method and a software upgrading method

The embodiment of the invention relates to a software starting method, wherein the software is stored in a first partition and a second partition of a storage device respectively, the software starting method comprises the steps that starting information is read, the starting information comprises a current starting partition, and the current starting partition is the first partition or the secondpartition; judging whether the current starting partition can normally start the software or not, and switching the current starting partition into the other one of the first partition and the secondpartition if the current starting partition cannot normally start the software; and starting the software from the current starting partition. The method can be particularly used for solving the problem that after OTA upgrading, when a system mirror image is damaged due to nonvolatile storage damage (such as an eMMC bad block, a hard disk bad track and the like), starting cannot be carried out. At present, the method can be applied to a vehicle-mounted computing unit (an automatic driving computing unit).
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD

Ground power supply intelligent control system for satellite electrical test

The invention provides a ground power supply intelligent control system for a satellite electrical test, and the system comprises a solar cell simulation array, a solar cell simulation array controller, a control actuator and a power control box; the solar cell simulation array is respectively connected with the solar cell simulation array controller, the control actuator and the power control box; the control actuator is respectively connected with the solar cell simulation array controller, the power control box and a satellite; the power control box is used for providing power control for the solar cell simulation array and the control actuator; the solar cell simulation array is a power supply unit which simulates the power supply of the satellite solar cell array; the solar cell simulation array controller is used for setting the power output of the solar cell simulation array; and the control actuator supplies power to or cuts off the power of the satellite according to the output of the solar cell simulation array or the solar cell simulation array controller. The ground power supply intelligent control system for the satellite electrical test has a good effect and plays an active promoting role in simplifying the posts of satellites and other spacecrafts, improving the efficiency, implementing automatic electric test, improving the universality of equipment and the like.
Owner:SHANGHAI SATELLITE ENG INST

Flow transfer method and equipment

ActiveCN102404234AIncrease profitReduce forwarding packet lossData switching networksTraffic capacityTransfer mode
The invention provides a flow transfer method and a piece of equipment. The method is applied to a piece of member equipment which is used for forming a stack system. The sum of the equivalent routing number of the member equipment of the stack system reaching the destination is equal to the number of the equivalent routing of the stack system reaching the destination. The method comprises the following steps: receiving the flow to be transmitted to the destination; determining that the equivalent routings which are related to the destination address of the destination in the transfer table forms of the equipment have at least one effectively routing, and transferring the flow of the effective routing in the transfer table forms to the destination; if equivalent routings which are related to the destination address of the destination in the transfer table forms of the equipment break down, according to the routing information that all the member equipments of the stack system reach the destination, adopting at least one of the other member equipments which is replaced with the equipment to transfer the flow to modify the equivalent routing related to the destination address of the destination in the transfer table forms as the stack link of the equipment and other member equipments; and transferring the flow to the other member equipments according to the modified stack link after being modified in the transfer table forms.
Owner:NEW H3C TECH CO LTD

Crude oil mixed-transferring integrated device and method

The invention relates to a skid-mounted integrated device of medium and small sized mixed-transferring stations in a low permeability oil field, in particular to a crude oil mixed-transferring integrated device and a method of heating, separating, buffering, pressurizing and out-transferring processes during the oil field production and building project, which can realize at least four production processes. Pressurizers in the production processes 1 and 2 can realize mutual reservation. The production processes 1 and 3 are suitable to the condition that casing gas is used as fuel of a heating device; the processes of 1 to 3 are suitable to the condition of crude oil without being heated, the crude oil can not be performed by the heating procedure, the separating procedure, the buffering procedure and the like under the condition; the process 4 is also suitable to the condition that the crude oil can meet the out-transferring condition without being heated, and the crude oil can not be heated under the condition. The invention can meet the production requirement by adopting any one of processes, and is more suitable to a multifunctional integrated device of heating, buffering, separating, pressurizing, metering and the like of the crude oil.
Owner:XIAN CHANGQING TECH ENG

Virtual gateway primary and backup switching method and device based on SDN controller

The invention discloses a virtual gateway primary and backup switching method and device based on an SDN controller, relates to the technical field of network, and achieves that the primary and backupvirtual gateways are in a working condition at the same time to avoid that a virtual gateway is in an idle state, thereby saving bandwidth resources and server resources of a network. The method comprises the steps that it is judged whether or not primary paths respectively corresponding to a first virtual gateway and a second virtual gateway in a same virtual network are in a normal state through the SDN controller; if the primary path corresponding to the first virtual gateway is out of order, a backup path corresponding to the first virtual gateway is switched to the primary path of the second virtual gateway, or if the primary path corresponding to the second virtual gateway is out of order, a backup path corresponding to the second virtual gateway is switched to the primary path of the first virtual gateway; the switched backup path transmits a message sent from a virtual machine. The virtual gateway primary and backup switching method and device based on the SDN controller are applicable to the virtual gateway primary and backup switching based on the SDN controller.
Owner:PING AN TECH (SHENZHEN) CO LTD

File storage system, data scheduling method and data node

The invention relates to the field of file systems and discloses a file storage system, a data scheduling method and a data node. The data scheduling method includes: a main data node receives a write operation instruction sent by a client, wherein the write instruction includes to-be-written data; the main data node writes the to-be-written data into a first distributed storage subsystem, sends a notification message to a name node and sends the client a reply message; the main data node sends an updating request to a first backup data node, wherein the updating request includes a storage position of the to-be-written data in the first distributed storage subsystem and attribute information of the to-be-written data. The file storage system, the data scheduling method and the data node are applied to a file storage process.
Owner:HUAWEI CLOUD COMPUTING TECH CO LTD

Neighbor complementary power supply and distribution device for solar aircraft

The invention discloses a neighbor complementary power supply and distribution device for a solar aircraft, and the device comprises more than two power supply and distribution subsystems of the samestructure, wherein each power supply and distribution subsystem comprises two sets of assemblies, and the electric connection and disconnection of the same parts in the assemblies can be achieved through switch control. The device employs a centralized-distributed design, and each power supply and distribution subsystem employs a centralized installation mode, has the functions of different powersupply and distribution, and can work independently. The power supply and distribution subsystems employ a distributed installation mode, are suitable for the characteristics of the large wingspan ofa solar plane and the distribution characteristics of a propelling system, and can effectively reduce the centralized stress. Meanwhile, the controllable and parallel connection mode of two sets of assemblies of each power supply and distribution subsystem achieves the neighbor complementation and redundant backup in the subsystems, and the fault isolation at the assembly level and the redundant backup in the power supply and distribution subsystems are achieved, thereby solving a problem that the backup distance is large in loss, and improving the work reliability of the device.
Owner:BEIHANG UNIV

Conference backup method and conference backup device

The invention provides a conference backup method and a conference backup device. The method comprises steps: a conference node detects a first module which works abnormally in modules on the conference node, wherein the modules comprise at least one selected from a conference service module, a call service module and a media service module; and the conference node uses a second module to replace the first module to support the conference held on the conference node, wherein the second module comprises modules on other conference nodes except the conference node. Thus, the conference resource waste problem is solved, mutual backup of resources between the conference nodes is realized, and the conference resource waste is reduced.
Owner:三亚中兴软件有限责任公司

Power supply method and power supply system by using optical network element

The invention discloses a power supply method by using an optical network element, which comprises a process of carrying out selectional starting on at least two power supplies connected to the optical network element. The process comprises the following steps: sampling power supply current of the optical network element; determining a starting proposal of the power supplies connected to the optical network element based on the sampling result; and supplying power to the optical network element by the power supplies according to the starting proposal. The invention also discloses a power supply system by using the optical network element. The method and the system determine the starting proposal of a plurality of the power supplies connected to the optical network element by sampling the current of the optical network element, so that when certain power supply is faulty or generates overcurrent, other power supplies are used or added for supplying the power to realize crossfeed and mutual backup among the power supplies and improve the stability of the system.
Owner:ZTE CORP

High-capacity check-in signal capturing and processing method, device and system based on high-speed optical switching

The invention discloses a high-capacity check-in signal capturing and processing method, a high-capacity check-in signal capturing and processing device and a high-capacity check-in signal capturing and processing system based on high-speed optical switching. The system comprises a signal collection unit, a 10 gagabit switch, a signal capturing unit and a signal processing unit set consisting of a plurality of signal processing units; the 10 gagabit switch is used for sending a digital baseband signal to the signal capturing unit; the signal capturing unit achieves the capturing of a check-in signal, and schedules the signal processing unit set according to a polling scheduling rule, by combining with the working conditions fed back by the signal processing units in real time; mutually replaceable hardware devices are uniformly designed based on the signal processing units; the all signal processing units are regarded as common resources which are shared by all sub-systems, and unified allocation of system resources and balanced workload are achieved, thus the distributed signal processing unit devices form a cluster, and the parallel processing of multi-channel signals is achieved.
Owner:NAT UNIV OF DEFENSE TECH

Novel networking method under coal mine based on combination of WIFI wireless network and wired network

The networking method is based on a combination of a WIFI wireless network and a wired network, and includes a plurality of communication units used for real-time wireless communication and data transmission under a coal mine. According to the networking method, a wired link is used as a main transmission link, a wireless link is used as a backup link, and the plurality of communication units transmit data in a relay method. The novel networking method can still be safely used in harsh complex environment under a coal mine, even when a wired link cannot be used or is broken off, the reliability of communication and the radio communication efficiency under the coal mine are greatly raised. By adopting the novel networking method, wireless communication and transmission of network data such as video images and the like in positions covered under the coal mine and positions above the coal mine and under the coal mine can be ensured.
Owner:辽宁瑞华实业集团高新科技有限公司

Spacecraft power supply double-bus system

The invention provides a spacecraft power supply double-bus system. The spacecraft power supply double-bus system comprises a solar cell array module, a shunt module, a charging control module, a platform adjusting bus, a load non-adjusting bus, a platform load, a load and a storage battery pack module; the solar cell array module is controlled by the shunt module and then is output to the platform adjusting bus to supply power to the platform load; the solar battery array module is controlled by the charging control module and then is output to the storage battery pack module to charge the storage battery pack module; the first storage battery pack and the second storage battery pack are connected in series and then output to the load non-adjusting bus to supply power to the load; the first storage battery pack is output to the platform adjusting bus through a plurality of discharge adjusting modules to supply power to the platform load; and the second storage battery pack is connected to the platform adjusting bus through the plurality of discharge adjusting modules to supply power to the platform load. The system complexity can be reduced, and the system stability is improved.
Owner:SHANGHAI SATELLITE ENG INST

Embedded intelligent interactive terminal and communication method thereof

The invention discloses a multifunctional intelligent interactive terminal, which comprises a data processing and controlling module, a data storage module, a TCP / IP (transmission control protocol / Internet protocol) encryption module, a wire communication module, a wireless communication module, an uplink communication module and a downlink communication module. A communication method for the terminal comprises the processes of data acquisition, data processing and data transmission and supports wire and wireless communication channels, wherein the wire communication mode is Ethernet communication, and the wireless communication is a 3G mode. The uplink communication mode supports an Ethernet channel and a 3G wireless channel, one of the Ethernet and the 3G is configured as a main channel, the other channel is configured as a standby channel, and the channels are mainly used for remote communication of the equipment; and the downlink communication mode supports the Ethernet channel, and is mainly used for local communication of the equipment to meet the communication of a local area network in industrial application. The terminal has the advantages of convenience for operation, reliable operation, high information transmission quantity and high transmission speed, can provide convenient and efficient power utilization information and power utilization service with strong interactivity for users, and realizes the function of an intelligent power utilization interactive service platform.
Owner:JIANGSU ELECTRIC POWER CO +2

Mirror ratchet mutually-standby hand cranking power generation mechanism and non-power-source electronic lock

The invention discloses a mirror ratchet mutually-standby hand cranking power generation mechanism which comprises a shell, a drive gear, a handle rotating shaft and two power source generation mechanisms. The drive gear is rotationally supported on the shell. The handle rotating shaft is connected with the drive gear. The two power source generation mechanisms are symmetrically arranged in the left-right direction. Each power generation mechanism comprises a drive gear, a ratchet mechanism, a power generator and a fixing plate. The power generators are installed on the fixing plates. The twodriven gears are engaged with the drive gear and are connected with rotors of the power generators through ratchet mechanisms correspondingly. By means of the power generation mechanism, double-power-source output is achieved. The invention further discloses a non-power-source electronic lock which comprises a shell, a rotating handle, a lock cylinder, a circuit board and the mirror ratchet mutually-standby hand cranking power generation mechanism. The mirror ratchet mutually-standby hand cranking power generation mechanism is installed in the shell, the rotating handle is installed on the handle rotating shaft, and the power output ends of the two power generators are electrically connected with two sets of control systems of a circuit board correspondingly. By means of the non-power-source electronic lock, a circuit is simplified.
Owner:广州启懿实业有限责任公司

Low-emission safe and reliable rail transit system power supply method, device and system

PendingCN113500948AReduce pollutionSave investment in power transmission and transformationPower supply linesDc source parallel operationFuel cellsPower grid
The invention relates to a low-emission safe and reliable rail transit system power supply method, a device and a system. The invention relates to a method, equipment and a system for applying a fuel cell power generation technology to an electrified rail transit power supply system and an electrified trolley bus power supply system, and provides a method for establishing a distributed power station based on the fuel cell technology to supply power to an electrified line or a station. For an existing non-electrified line, the distributed power stations based on the fuel cell technology are arranged along the line, and electrification transformation is rapidly and conveniently achieved. A plurality of or a plurality of groups of fuel cells are combined in series and in parallel, a converter is used for boosting, an energy storage device with a certain capacity is configured, and an output end is connected with the converter, so that electric power with power, voltage class and power supply system required by a traction power grid is provided, and meanwhile, a plurality of sets of redundant power generation technologies can be provided, or other power generation technologies can be combined, or redundant power supply with the power grid can be provided, and the traction electricity demand of an electrified line is met.
Owner:陈建明

Detection system and method for satellite installation testing of satellite power supply and distribution system

InactiveCN112698135ASolve the problem of manual operation prone to accidentsSimplify the positionDirection of current indicationResistance/reactance/impedenceMultiplexingData acquisition
The invention provides a detection system and method for satellite installation testing of a satellite power supply and distribution system. The method comprises the steps that satellite installation to-be-tested equipment is connected with a multiplexing switch matrix unit and a power load module through a universal switching test cable; the impedance measurement module is connected with the multiplexing switch matrix unit; the multiplexing switch matrix unit is connected with the data acquisition module; the power load module, the data acquisition module, the multiplexing switch matrix unit and the impedance measurement module are connected with the lower computer and are controlled by the lower computer. The power supply module supplies power to the power load module, the data acquisition module, the impedance measurement module, the multiplexing switch matrix unit and the lower computer. The method has good effects and positive promotion effects on satellite post simplification, risk reduction, accident reduction, efficiency improvement, convenient implementation, equipment universalization improvement and the like.
Owner:SHANGHAI SATELLITE ENG INST

Intelligent fire-fighting early warning system for detecting fire in real time

The invention discloses an intelligent fire-fighting early warning system for detecting a fire in real time, which relates to the technical field of fire-fighting systems and comprises an MCU, a fire-fighting control module and a false alarm test module, wherein the MCU is used for processing and logically operating data. The invention discloses the intelligent fire-fighting early warning system for detecting a fire in real time. A circuit switching module is adopted, mutual backup of wired and wireless data transmission can be realized; data transmission loss of the wire due to a fire is avoided; working stability is further improved, power-off protection module, rapid power-off of electric equipment can be realized; the fire fighting process is avoided; electric shock accidents happen tofire fighters, use safety is improved, dual information monitoring can be achieved through the infrared sensor and the smoke sensor, the false alarm rate is further reduced, use convenience is improved, normal work of systems of all parts can be guaranteed through the false alarm testing module, and a user can conveniently and rapidly judge whether a fault occurs or not.
Owner:广东宝利建设有限公司

Comprehensive filtering process during aluminum oxide production

The invention discloses a comprehensive filtering process during aluminum oxide production. The comprehensive filtering process includes the steps of firstly, rough liquid from a red mud settling separation washing procedure enters a leaf filter through a rough liquid tank and a rough liquid pump; secondly, fine liquid after filtration enters a plate type heat exchanger through fine liquid pump to exchange heat with mother liquor from the mother liquor tank of a seed filtering procedure; thirdly, the bottom flow of the cyclone device of a seed decomposition procedure flows to a flat-plate filter; fourthly, mother liquid obtained through a vertical-plate filter and the flat-plate filter flows to a seed filtering mother liquor tank; fifthly, aluminum hydroxide obtained by the filtering of the flat-plate filter is conveyed to an aluminum hydroxide calcining procedure by a belt conveyor; sixthly, filter cake obtained by the filtering of the leaf filter is conveyed to the red mud settling separation washing procedure. The comprehensive filtering process has the advantages that the procedures are centralized, process flow is shortened, buffer equipment is reduced, and production cost is lowered; centralizing of equipment such as a vacuum pump and an air compressor is achieved, and mutual standby application of equipment is achieved to a certain degree.
Owner:SHENYANG ALUMINIUM MAGNESIUM INSTITUTE

Rolling sensing device and signal processing method thereof

The invention relates to the field of intelligent traffic, in particular to a rolling sensing device and a signal processing method thereof. The rolling sensing device comprises a sensing band composed of a plurality of sensors connected in parallel, a signal processing module and a micro-control unit (MCU); the sensing band, the signal processing module and the MCU are electrically connected; thesensing band processes a collected signal and sends the signal to the signal processing module; after receiving the signal, the signal processing module processes the signal and sends the signal to the MCU; and the exterior of the sensing band is provided with a protective shell covering the sensing band. According to the device, the plurality of rolling sensors are connected in parallel, so thatthe problem of low identification precision in the prior art is solved; the protective shell is arranged on the outer layer of the sensing band, so that ground mounting can be achieved, and the problem of difficulty in laying in the prior art is solved; and the laying cost is low, so that large-area laying is facilitated.
Owner:SUZHOU BOXUN IOT TECH CO LTD

Flow transfer method and equipment

ActiveCN102404234BIncrease profitReduce forwarding packet lossData switching networksTransfer modeMulti path
The present disclosure relates to a traffic routing method and a traffic routing device. A member device of a stacking system receives traffic destined for a destination node. If there is at least one valid Equal-cost multi-path (ECMP) associated with an address of the destination node in a forwarding table, the member device routes the received traffic to the destination node through the at least one valid ECMP path. Otherwise, the member device selects at least one other member device of the stacking system for routing the received traffic, updates an ECMP path associated with the address of the destination node in the forwarding table to a stacking link connecting the member device with the selected at least one member device, and transmits the received traffic to the selected at least one member device.
Owner:NEW H3C TECH CO LTD

Distributed data center heat recovery heating system

The invention discloses a distributed data center heat recovery and heating system, which relates to the intersection fields of HVAC and information network. The invention includes: a cabinet, a server and a heat recovery heating module. The server is located inside the cabinet and placed in the user's home to provide data computing and storage capabilities for local and remote users; the heat recovery and heating module recovers the waste heat of the server to provide heat for local users. In the present invention, the servers that were originally placed centrally are distributed in the user's home or local community, and the heat dissipation of the server is used to provide heat to the user's home, so as to improve the utilization rate of waste heat in the data center; when there is no need for heat supply, the excess heat is dissipated into the surrounding environment , the heat dissipation is relatively dispersed, and the efficiency is higher, which effectively weakens the local heat accumulation effect and ensures the stable operation of the server. It not only solves the shortcomings of the centralized data center, such as large footprint, high construction and operation and maintenance costs, and difficult heat dissipation, but also uses the heat dissipation of equipment servers to provide heat for homes.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Power supply method and power supply system by using optical network element

The invention discloses a power supply method by using an optical network element, which comprises a process of carrying out selectional starting on at least two power supplies connected to the optical network element. The process comprises the following steps: sampling power supply current of the optical network element; determining a starting proposal of the power supplies connected to the optical network element based on the sampling result; and supplying power to the optical network element by the power supplies according to the starting proposal. The invention also discloses a power supply system by using the optical network element. The method and the system determine the starting proposal of a plurality of the power supplies connected to the optical network element by sampling the current of the optical network element, so that when certain power supply is faulty or generates overcurrent, other power supplies are used or added for supplying the power to realize crossfeed and mutual backup among the power supplies and improve the stability of the system.
Owner:ZTE CORP

Ground power supply intelligent control system for satellite electrical test

The invention provides a ground power supply intelligent control system for a satellite electrical test, and the system comprises a solar cell simulation array, a solar cell simulation array controller, a control actuator and a power control box; the solar cell simulation array is respectively connected with the solar cell simulation array controller, the control actuator and the power control box; the control actuator is respectively connected with the solar cell simulation array controller, the power control box and a satellite; the power control box is used for providing power control for the solar cell simulation array and the control actuator; the solar cell simulation array is a power supply unit which simulates the power supply of the satellite solar cell array; the solar cell simulation array controller is used for setting the power output of the solar cell simulation array; and the control actuator supplies power to or cuts off the power of the satellite according to the output of the solar cell simulation array or the solar cell simulation array controller. The ground power supply intelligent control system for the satellite electrical test has a good effect and plays an active promoting role in simplifying the posts of satellites and other spacecrafts, improving the efficiency, implementing automatic electric test, improving the universality of equipment and the like.
Owner:SHANGHAI SATELLITE ENG INST

Connecting device of furnace end smoke collection pipeline

The invention discloses a connecting device of a furnace end smoke collection pipeline, relates to a coal charging smoke collection device of a tamping coke furnace, and solves the technical problems of inaccuracy for butting, poor sealing effect and incapability of normally collecting furnace end smoke in a conventional blind sleeve. The connecting device comprises a flap valve switching-on device and a blind sleeve butting device, and is used for communicating an upper pipeline with a lower pipeline; a flap valve drive oil cylinder of the flap valve switching-on device is connected with a push rod; a blind sleeve butting drive oil cylinder of the blind sleeve butting device is hinged to a swing arm, and the other end of the swing arm is connected with a blind sleeve; a vertical limiting block is mounted at the joint between a blind sleeve body and the swing arm, and a ceramic fiber blanket sealing ring is arranged on the edge of a butting hole of the blind sleeve body. The connecting device is used for connecting the upper and lower pipelines of the furnace end smoke collection pipeline and has the advantages of space saving, simple structure, accuracy for alignment, good sealing effect and the like.
Owner:TAIYUAN HEAVY IND

Heterogeneous embedded dual-redundancy steering engine

The invention discloses a heterogeneous embedded dual-redundancy steering engine, and belongs to the technical field of servo control and actuation. The heterogeneous embedded dual-redundancy steeringengine specifically comprises an electromechanical static pressure actuator (EHA) and an electromechanical actuator (EMA). The EMA is integrally embedded in the hollow piston of the EHA; two actuators with different principles of the EHA and the EMA are combined through an embedded structure; mutual backup of EHA and EMA is achieved, system overall failure caused by the same failure principle isavoided, the system failure rate is greatly reduced, sealing treatment is conducted in an EHA piston, a ball screw in the EMA is immersed in lubricating oil to be fully lubricated, and the reliabilityof an aircraft control system is effectively improved.
Owner:TAIYUAN UNIV OF TECH
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