37results about How to "Improve fault location speed" patented technology

The invention discloses a fault positioning method for a power distribution network by combining simulation calculation and real-time monitoring, and belongs to the technical field of fault detection of the power distribution network. The method comprises the following steps of: extracting information of a target power distribution network from the conventional power distribution network geographic information system and a power distribution network energy management system through an organizational data analysis interface to automatically generate a real-time simulation calculation model of the target network; putting forward a virtual node-based fault positioning algorithm according to the simulation calculation model so as to solve functional relation between voltage amplitude of any node and a fault position parameter when a symmetric and asymmetric fault occurs at any point in the target network; and finally calculating an accurate position of the actual fault of the power distribution network by using a small amount of real-time data of voltage drop amplitude in a fault process. By using the fault positioning method for the power distribution network by combining the simulation calculation and the real-time monitoring, the state and the parameter of the network are accurately and effectively reflected when the fault occurs, the accuracy of the fault positioning is improved, and the method is suitable for various network structures and fault types.

The method includes steps: fault file management unit collects operating state data of each testing point in real time; when receiving request information from user end, based on the said operating state data to generate fault file, and send to user end; user end compares the said data to data in normal operation in order to determine fault position in base station, realize quick repair, and reduce maintenance cost of system. Based on information of testing points, the invention can locate fault in base station in circuit board level. The invention reduces amount of information in fault file and quickens speed for locating fault.

Core of the method is as following: first, network node of system sends detection message to other associated network nodes; then, monitoring response messages from the said associated network nodes; if verifying that response message from an associated network node is not received then the method determines the associated network node is a fault network node. Without need of preparing additional special network detection device, and without need of debugging fault nodes through manual work by technicians, the invention can position network fault accurately, and quicken speed for positioning fault. Advantages are: increasing efficiency of recognizing fault point of network, reducing maintenance cost of system, raising degree of satisfaction of users, and not influence on safety of network.

The invention discloses a power distribution grid fault positioning method with high precision and low cost. According to the fault positioning method, a small amount of traveling wave detection devices with GPS time comparison functions are mounted at two ends of different overhead lines and cable lines of a power distribution grid; when the power distribution grid has faults, the wave speeds of traveling wave line mode component and floor mold component in different lines are calculated by using detection devices of a non-fault line, subsequently the distance of a fault point to one detection device is calculated according to the time difference of the traveling wave line mode component and the floor mold component reaching the detection device, and finally the position of the fault point is confirmed according to the ranging result of a plurality of detection devices. The power distribution grid fault positioning method can achieve accurate fault positioning, shortens the time for troubleshooting, improves the power supply reliability, is small in mounting equipment quantity and good in economy, and has very good practicability.

A method for locating faults in a power network includes reading power network information stored in a database in a data reading step. A power network matrix is created based on the power network information in a power network creating step. A fault current vector is created in a fault current vector creating step. In a fault locating step, a backward substitution is carried out on the fault current vector and the power network matrix to obtain a detection zone vector, and the fault can be located. The fault locating speed of the power network is, thus, increased.

The invention provides a method and system for confirming faults of an IP bearer network. Services between first equipment and second equipment are borne through the IP bearer network, the first equipment is connected into the IP bearer network through third equipment in the IP bearer network, and the second equipment is connected into the IP bearer network through fourth equipment in the IP bearer network. The method comprises the steps that the first equipment detects the quality of the services between the first equipment and the second equipment to confirm whether abnormal situations occur to the quality of the services between the first equipment and the second equipment. If the quality of the services between the first equipment and the second equipment is abnormal, the first equipment sends request messages to the third equipment, and receives the response messages sent by the third equipment, wherein the response messages carry the 5-tuple flow of the services and the quality parameter values of the services in IP bearer network. The first equipment confirms whether faults occur to the IP bearer network or not according to the quality parameter values of the services carried in the response messages.

The embodiment of the invention provides a fault prediction method, device and equipment and a readable storage medium, and the method can comprise the steps: obtaining a service log; based on the content contained in the service log, determining feature information of the service log, wherein the feature information is used for representing features of the service log; obtaining fault feature information, wherein the fault feature information is obtained based on training of a plurality of historical service logs; and matching the feature information of the service log with the fault featureinformation, and performing fault prediction through a preset matching rule based on the matching degree of the feature information of the service log and the fault feature information. Through the fault prediction method, device and equipment and the readable storage medium provided by the embodiment of the invention, the fault positioning speed can be improved.

The method discloses risk analysis equipment, a monitoring system, and a monitoring method. The risk analysis equipment comprises a comparison module which is used for comparing the performance monitoring data of a monitored service and a call stack data with a plurality of preset monitoring threshold values, and giving a notice to an analysis module when the performance monitoring data or the call stack data exceeds one monitoring threshold value; the analysis module which is used for receiving the notice from the comparison module, carrying out the matching and comparison of the performance monitoring data and the call stack data with the data of a pre-stored warning or fault cases, and judging whether the monitored service has a potential risk or fault or not. The risk analysis equipment carries out the risk pre-judgment and fault inspection through the simultaneous collection of the performance monitoring data of the monitored service and the call stack data, and improves the fault positioning speed through the analysis of the two types of data.

The invention discloses a fault positioning method for a server startup process, and the method comprises the following steps: sequentially detecting whether a to-be-detected target in each detectionstage has a fault or not when a power supply of a server is detected to be switched on; if so, sending an opening instruction to a target Token switch corresponding to the detection stage of the faultso as to open the target Token switch to display target serial port information corresponding to the detection stage of the fault; and performing fault positioning according to the target serial portinformation. By applying the technical scheme provided by the embodiment of the invention, the export duration of the serial port information is greatly shortened, the fault positioning speed is increased, and the startup time is greatly shortened. The invention further discloses a fault positioning device and apparatus for the server startup process and a storage medium, and the fault positioning device and apparatus have corresponding technical effects.