46results about How to "Improve failure recovery efficiency" patented technology

The invention relates to a distributed file system which comprises a big file storage server, a big file metadata management server and a cache server, wherein the big file storage server is used for storing split big file data blocks, and big files are files of which the size is larger than the preset size; the big file metadata management server is used for storing metadata of the big files, storing mapping information of the big file data blocks on the big file storage server, managing the namespace of the big files and processing the requesting information of a user; the cache server is used for storing small files, metadata of the small files and caching part of frequently visited big files, and the small files are the files of which the size is smaller than or equal to the preset size. According to the distributed file system, the big files and the small files are stored separately, the big files are stored on the big file storage server in a block mode, the small files are stored on the cache server and the reading and writing efficiency of the big files and the small files is improved effectively.

The invention discloses an embedded intelligent monitoring and remote maintenance system of a powder forming machine. The embedded intelligent monitoring and remote maintenance system is composed of an on-site monitoring unit and a powder forming machine manufacturer remote maintenance center. A workshop on-site monitoring platform has the function of obtaining the important running state of the powder forming machine through real-time data interaction with a main controller of the powder forming machine and through workshop field data collected through data collection devices such as a sensor, a video collection device and an audio collection device, the function of displaying the real-time running state of the powder forming machine on a display device, the function of alarm prompt and the like. Meanwhile, the on-site monitoring unit can conduct data compression and data classification on state parameters of the powder forming machine and sends data to a remote maintenance center of a device producer and a person in charge of a certain part of the powder forming machine through an Ethernet interface, a GPRS interface and a short message sending module, and therefore online monitoring and remote fault diagnosis of the powder forming machine, and the maintenance service are achieved, and related personnel are notified. The embedded intelligent monitoring and remote maintenance system is low in cost, complete in function, high in configurability and high in tailing capability, functional modules can be increased or reduced according to the on-site running state of the powder forming machine, and the embedded intelligent monitoring and remote maintenance system has high universality.

The invention relates to a power supply and consumption energy efficiency monitoring and fault liability recognition method and system for a green industrial park. The method includes that an electricenergy data acquisition terminal performs real-time data acquisition and storage on electric energy of each power consumer and each power grid electric energy supply point in the green industrial park; after data processing of the real-time data acquired by the data acquisition terminal, the data are uploaded to a power supply and consumption energy efficiency monitoring and fault liability recognition analysis platform through a communication network; the analysis platform subjects the uploaded electric energy data and other energy consumption data to data processing, data mining and data analysis according to application demands. The system comprises a data acquisition terminal, a data communication unit, a data server, a power supply and consumption energy efficiency monitoring and fault liability recognition analysis workstation and a man-machine interaction unit. On the basis of real-time data acquisition of a power supply and consumption system, online monitoring and analysis ofelectrical operating parameters, electric energy quality and energy efficiency, fault alarming, fault diagnosis and fault liability recognition are realized through big data mining.

The present invention provides a failure recovery method, a node, and a path computing unit, relates to the field of communication, provides a failure recovery mechanism, and solves a problem of lower failure recovery efficiency when path recovery is carried at for multi-paths at the same time. The method includes that: the node sends out a first information to the path computing unit when a link failure is discovered; the path computing unit finds out which paths are influenced, obtains path recovering information of all paths being influenced, judging authorization states of the pathes being infuluenced, and sening out a path recovery information to a head node according to a judgement result; and the head node establishes a recovery path according the the path recovery information after that the path recovery information sent by the path computing unit is received by the head node. The embodiment of the failure recovery method is used for recovering a link failure.

The invention discloses a log acquisition method and a device, and a network management server. The log acquisition method comprises steps: a handheld terminal acquires ID information corresponding to equipment; according to the ID information corresponding to the equipment, the handheld terminal acquires rack diagram data corresponding to the equipment from the network management server, wherein the rack diagram data comprise port information corresponding to the equipment; according to the rack diagram data, the handheld terminal selects a port for connection, and according to the selected port, an IP address corresponding to the port is acquired from the network management server; and according to the IP address, the handheld terminal builds communication connection with the equipment, and a log corresponding to the equipment is acquired. Through the scheme of the invention, an operation and maintenance person can be helped to quickly acquire the log of failed equipment, and the labor intensity of the operation and maintenance person is reduced.

The present invention discloses a system and a method for complex distribution network fault recovery by considering multiple targets. An improved swarm algorithm is employed to perform fault recoveryand island partitioning of a distribution network, a clustering strategy and a following strategy are introduced in the algorithm to define a leader intersection search strategy, a swarm perception radius and an algorithm search cut-off condition so as to allow the search purpose to be more clear, further improve the rate of convergence, increase a search range, greatly improve the defects that abasic swarm strategy is easy to run in the local optimization solution and is difficult to obtain accurate optimal solution, improve the convergence in the calculation process and effectively improvethe fault recovery efficiency of the power grid.

The invention provides a fiber optic quantum key distribution network failure recovery method, which comprises the following steps: when a fiber optic quantum key distribution QKD network is faulty, determining a fiber optic QKD source node and a fiber optic QKD destination node corresponding to an affected service; acquiring a first target ground station in connection with the fiber optic QKD source node and a second target ground station in connection with the fiber optic QKD destination node; and using the first target ground station, a preset quantum satellite, and the second target groundstation as relay nodes between the fiber optic QKD source node and the fiber optic QKD destination node to recover the affected service corresponding to the fiber optic QKD source node and the fiberoptic QKD destination node. By utilizing the satellite-ground QKD between the quantum satellite and the ground station and combining the ground fiber optic QKD between the ground station and the fiberoptic QKD network, the method can realize the rapid recovery of the fiber optic QKD network failure in heaven-earth collaboration, which effectively improves the failure recovery efficiency of the fiber optic QKD network, and solves the problem that the current fiber optic QKD network failure is difficult to quickly respond and recover in time.

The invention discloses a database cluster failure recovery method on the basis of partial ordering relation logs, which comprises the following steps that; each node in a database cluster system respectively generates a log; when the database cluster system needs to be recovered from a fault, each node respectively reads the corresponding log and carries out fault recovery operation in parallel according to a partial ordering relation among the logs; and after the treatment on all the logs is completed, the state of the database cluster system is recovered to a state before the database cluster system has faults. On the one hand, a plurality of nodes are utilized to carry out the recovery of database cluster system in parallel, so that the efficiency of the failure recovery is improved; on the other hand, due to the utilization of the partial ordering relation among the logs, the accuracy of the failure recovery is ensured.

The invention provides a disaster recovery switching method and device. The method comprises: detecting whether a management network or / and a storage network of a protection site is reachable or not; and performing automatic switching on a site recovery manager (SRM) when the unreachable number of the management network of the protection site reaches a management network detection threshold or / and the unreachable number of the storage network of the protection site reaches a storage network detection threshold. Through adoption of the method and the device provided by the embodiments of the invention, the automatic disaster recovery switching is realized, the failure recovery efficiency is improved, and the impact of failure occurrence on existing services is reduced.

The invention discloses a quantitative identification method for a transfer power supply weak ring influencing power distribution network fault recovery, which comprises the following steps: S1, modeling a main distribution network, and selecting a starting point; s2, calculating a bus security load; s3, calculating the total recovery load of the feeder line of the single transfer path; s4, calculating a multi-wheeling path recovery total load; s5, calculating the primary recovery rate of the load of the transformer substation; s6, judging whether calculation of all the substations is completed or not, and if calculation of all the substations is not completed, repeating the steps S1 to S5; s7, sorting the substations according to the primary load recovery rate; S7, sorting the substationsaccording to the primary load recovery rate; and S8, according to the threshold value, carrying out positioning and strategy improvement on the weak link. The invention provides a quantitative identification method for a transfer power supply weak ring influencing power distribution network fault recovery, which can perform quantitative calculation on the power grid transfer power supply weak ring and provide a basis for power distribution network planning, regulation and control and power grid transformation.

The embodiment of the application provides a system fault recovery method and device, and relates to the technical field of the computer. The method is applied to a first board card in intelligent equipment, and comprises the following steps: broadcasting fault information of the system fault occurring in the second board card after determining a fact that the system fault occurs in the second board card, wherein the second board card is one board card except the first board card in the intelligent equipment; judging whether the intelligent equipment can be used for performing system fault recovery on the second board card under the condition of receiving the fault information of the system fault occurring in the second board card, wherein the fault information is broadcasted by other board cards except the first board card in the intelligent equipment; if the intelligent equipment can be used for the system fault recovery, performing the system fault recovery on the second board card.The system fault recovery is performed by applying the scheme provided by the embodiment of the application, the operation can be simplified, and the fault recovery efficiency is improved.

The embodiment of the invention discloses a method for calculating and processing a non-communication vehicle train number window, which comprises the following steps of: updating the corresponding relation between a table number and a vehicle group number by an ATS system; when the ATS system is failed and recovered, reading the corresponding relation between the table number and the vehicle group number from an ATS database, and determining a first vehicle according to a preset principle; determining the train number of each vehicle according to the first vehicle and determining the vehiclegroup number of each vehicle according to the train number and a dispatching plan; determining a target table number of the vehicle according to the train number and running diagram of the vehicle, determining the vehicle group number of a preset vehicle according to a target table number and the corresponding relation, and achieving the estimation of the non-communication vehicle train number window according to the train group number of each vehicle and the train group number of the preset vehicle. The method can assist a dispatcher to quickly carry out the fault recovery operation for determining the train number window, can achieve the automatic calculation of the train number window of the whole line under the condition of a small amount of manual intervention operation, has high fault recovery efficiency and effectively reduces the working pressure of the dispatcher under the condition of monitoring system faults.

The invention, which relates to the field of robots and navigation, discloses a positioning recovery method based on a particle filter and robot equipment, thereby solving problems of overlong failurerecovery time and low efficiency caused by factors such as large global map and no prior information in a positioning loss process in the prior art. According to the method, a positioning recovery judgment module, a positioning recovery area calculation module, and a positioning recovery execution module are arranged. The positioning recovery judgment module is used for calculating the positioning quality and judging whether positioning recovery is started or not. The positioning recovery area calculation module is used for calculating a positioning recovery area according to the positioningquality when positioning recovery is started. The positioning recovery execution module is used for iterative updating of a particle filter, wherein the scattering area of the particles includes the positioning recovery area. The method is suitable for robot navigation.

The invention discloses an auxiliary decision-making method and device for risk control after a power grid accident and a storage medium. The method comprises the steps of: carrying out the optimal load reduction of a current monitoring power grid after an accident happens to the current monitoring power grid; recovering the power grid fault of the current monitoring power grid after load reduction based on a network reconstruction method; and for fault equipment in the current monitoring power grid, determining a risk minimization target-based transfer strategy of the current monitoring powergrid. According to the auxiliary decision-making method and device for risk control after a power grid accident and the storage medium disclosed by the embodiment of the invention, the fault recoveryefficiency of the power grid after the fault can be effectively improved, and the risk of the power grid is reduced.

The invention discloses a method and a device for automatically detecting IO suspension abnormity of a computing node, and relates to the technical field of cloud computing. The method comprises the following steps: collecting IO states of all virtual machines on the computing node in real time, wherein the IO states comprise a return state and a suspension state; counting the number of the IOs in the suspension state and the total number of the IOs at fixed time intervals, and determining the ratio of the number of the IOs in the suspension state to the total number of the IOs; and determining whether the computing node IO is in an abnormal state or not according to a size relationship between the ratio and a preset threshold value. According to the invention, IO abnormity of the computing node can be found in time, then effective processing measures are taken for the abnormal computing node in time, the response speed is increased, and the fault recovery speed is increased.

The invention relates to the field of operation and maintenance process optimization, in particular to a compensation transaction exception processing method and device, computer equipment and a storage medium. The compensation transaction exception processing method comprises the steps: processing a compensation transaction, and issuing a first processing result of the compensation transaction toa terminal corresponding to the compensation transaction; if an exception notification message sent by the terminal and used for indicating that the first processing result is exceptional is received, outputting an exception processing notification used for notifying developers to process exceptional events according to the exception notification message; obtaining log error content input by a developer according to the exception handling notification; obtaining an operation event for processing the abnormal event by the developer, and executing the operation event; processing the compensation transaction again, and if a normal notification message which is sent by the terminal and used for indicating that the second processing result is normal is received, storing the operation event andthe log error content in an associated mode; and monitoring the system log, and if the log content corresponding to the log error content appears in the system log, executing an operation event associated with the log error content.

The invention provides a fiber optic quantum key distribution network failure recovery method, which comprises the following steps: when a fiber optic quantum key distribution QKD network is faulty, determining a fiber optic QKD source node and a fiber optic QKD destination node corresponding to an affected service; acquiring a first target ground station in connection with the fiber optic QKD source node and a second target ground station in connection with the fiber optic QKD destination node; and using the first target ground station, a preset quantum satellite, and the second target groundstation as relay nodes between the fiber optic QKD source node and the fiber optic QKD destination node to recover the affected service corresponding to the fiber optic QKD source node and the fiberoptic QKD destination node. By utilizing the satellite-ground QKD between the quantum satellite and the ground station and combining the ground fiber optic QKD between the ground station and the fiberoptic QKD network, the method can realize the rapid recovery of the fiber optic QKD network failure in heaven-earth collaboration, which effectively improves the failure recovery efficiency of the fiber optic QKD network, and solves the problem that the current fiber optic QKD network failure is difficult to quickly respond and recover in time.

The utility model relates to a tool for correcting pins of a frame of communication equipment. It includes a collet, a movable connector, a handle and a pulling wire; a through hole for the pulling wire is formed inside the handle; the movable connector is composed of a conical cover and a rotating shaft; Tubular; the rear end of the spring is fixed inside the rear port of the housing; the fastener is in the shape of a cone, and is arranged inside the front of the housing with the bottom surface positioned at the front end of the housing, and the apex is connected to the outer end of the spring; the middle part of the pull line is located on the handle The pull wire runs through the hole, the front end passes through the round hole on the conical cover from the outside in turn, and is connected with the apex of the fastener through the rear port of the housing and the central hole of the spring, and the rear end is located outside. The invention has the advantages of simple structure, convenient use, insulation, not easy to be damaged, safe and reliable, etc., can improve the reliability and safety of communication equipment operation, and can reduce material input and worker labor. After use, the efficiency of pin failure recovery of communication equipment can be improved.

The invention discloses a complex distribution network fault recovery system and method considering multi-objectives. The invention performs fault recovery and island division on the distribution network network based on the improved bee colony algorithm. Cross-search strategy, bee colony perception radius and algorithm search cut-off conditions make the search purpose more clear, the convergence speed is further improved, the search range is increased, and the basic bee colony algorithm is easy to fall into local optimal solution and difficult to obtain accurate optimal solution. The shortcomings of the optimal solution improve its convergence in the calculation process and can effectively improve the fault recovery efficiency of the power grid.

The invention discloses a rollback method and device for publishing an application program and computer equipment, and the method is used for an application program publishing module, and comprises the steps: receiving an application program alarm message issued by an alarm monitoring platform; based on a preset triggering rule, determining whether the application program alarm message meets a requirement of executing a triggering action on the target application object or not; when the requirement for executing the triggering action on the target application object is met, calling a rollback action instruction of the target application object and sending an alarm message notification to a target user; and sending a rollback action instruction to the container management cluster to enable the container management cluster to execute the rollback action. According to the method and the device, when the user issues the exception of the application program, manual intervention is not needed, the rollback instruction can be immediately called to the container management cluster to enable the container management cluster to execute the rollback, precious time is saved for recovery of the application service, and the fault recovery efficiency is greatly improved.

The invention relates to a diagram calculation fault-tolerant method and system based on an information regeneration mechanism. According to the method, in the diagram calculating process, change information of a diagram structure between two adjacent snapshots is stored for diagram structure data, a peak value set is stored for information data, a diagram calculation system is recovered to a Superstep corresponding to the effectively snapshots through the stored change information of the diagram structure and the stored peak value set when efficacy losing occurs, and then calculation of the next superstep is started. The system comprises a control node, multiple calculation nodes and a distributed file system, and in order to better adapt to the efficacy losing condition of the diagram calculation system, the method and the system can lighten snapshot data, greatly shorten the generation time and the recover time of the snapshots, and improve the fault tolerance capacity of the diagram calculation system.

The invention discloses a mobile robot positioning method based on a particle filter and visual assistance, and the method comprises the steps: building an environment map based on a laser sensor, building an image key frame database based on a visual sensor, and enabling the image key frame database to store all image key frame information; calculating the positioning quality of the particle filter, and judging whether visual assistance is started or not; when visual assistance is started, calculating global position information of the mobile robot according to the current image frame and theimage key frame database, and setting an area near the global position of the mobile robot as a visual assistance scatter area; and iteratively updating the particle filter. The invention further discloses a mobile robot positioning device based on the particle filter and visual assistance, global positioning information is provided based on the visual sensor, the accuracy of point scattering inthe particle updating process is improved, the time for failure recovery is shortened, and the efficiency of failure recovery is improved.

The invention discloses a cross-layer network fault recovery system and method based on configuration migration. The method comprises: an upper-layer switching network controller sending equipment fault information to a super controller; the super controller performing fault equipment positioning and selecting standby upper-layer switching network device in the upper-layer switching network; the super controller generating a third forwarding table and issuing the third forwarding table to the upper-layer switching network controller and the lower-layer switching network controller; the upper-layer switching network controller generating a first forwarding table needing to be updated according to the third forwarding table and issuing the first forwarding table to the neighbor equipment ofthe corresponding fault equipment and the standby upper-layer switching network device; and the lower-layer switching network controller calculating lower-layer switching network transmission channelsaccording to the third forwarding table, and updating the second forwarding table of the lower-layer switching network device on the transmission channels. According to the invention, the reconfigurability of the lower-layer switching network is utilized to realize the rapid replacement and service recovery of the upper-layer switching network fault equipment.

The invention discloses a fast recovery method for composite Web service failure. Including the following steps: 1) setting a fault checkpoint in each atomic service of the composite Web service, the fault checkpoint monitors the atomic service where it is located, and sends monitoring information to the outside; 2) Sets a detection agent M-Agent at the server end of the composite Web The agent M-Agent receives the monitoring information sent by the failure checkpoint, and obtains the actual execution topology of the composite Web service; 3) The detection agent M-Agent locates the failed atomic service of the composite Web service; 4) Sets multiple R‑Agent, a level recovery agent, restarts failed composite Web services using a micro-restart-based recursive recovery method. By adopting the failure fast recovery method of the combined Web service of the present invention, the failure recovery of the combined Web service can be quickly and efficiently completed, and the reliability of the combined Web service can be improved.

The embodiment of the invention provides a network card queue creating method and device under an RDMA network, and the method comprises the steps: receiving a queue creating request which carries queue address information and queue port information; creating a network card queue pool and at least two network card queues corresponding to the queue creation request according to the queue address information and the queue port information; and associating the at least two network card queues with the network card queue pool to serve as the network card queues of the network card queue pool.