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

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.

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.

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).

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.