Design And Implementation Of Distributed Data Acquisition System For The Power Emergency Communication Network

With the increasing role of power in the production and life of modern society,the people's dependence on power is increasing.The power emergency communication network is a special communication network for emergency management of the power supply system.Maintaining the reliability and stability of the the power emergency communication network can improve the power system emergency management capability and reduce the impact of power system faults on power supply.Timely and stable operation state acquisition can provide data support for reliable and stable operation of the power emergency communication network.In this paper,based on the power emergency communication network of Shandong,the paper studies the distributed data acquisition technology to acquire operation and security status of network infrastructure in real time.This paper designs and implements a distributed data acquisition system for the power emergency communi-cation network.Firstly,this paper designs and implements a distributed data acquisition method.According to the principle of "near acquisition" and the method of "horizontal expansion",multiple acquisition nodes are deployed in the companies of various cities to collect the operation data of power emergency communication network in parallel.Different data acquisition methods are designed and implemented for different data acquisition objects.The description of each data acquisition method is as follows:(1)Develop acquisition client for mobile terminals and servers to collect equipment resource information and equipment running status data.(2)Acquisition of link status uses the way of sending and recovering the probe packets and analyze the response packets to collect data.(3)The running status data of network equipment such as routers and switches are collected by means of analog login and access to MIB based on SNMP.(4)For network security equipment such as firewalls and IPS,they use crawler to collect data.Secondly,this paper designs and implements a data storage and backup method.The data storage adopts three level storage system,including offline storage in local collection nodes,storage in server in Jinan and storage in remote backup server.The data backup is the backup of the collected data in order to avoid the loss of the data and backs up the device configuration files and log files incrementally in order to restore the device configuration and find the cause of the equipment failure through the log information.Thirdly,this paper designs and implements a data analysis method.The network topology anomaly detection regards the unexpected changes of node connections in the network as exceptions.A network topology anomaly detection technique based on link redundancy preprocessing is proposed to locate the abnormal situation in the network topology in time.Finally,the system performs functional tests and non-functional tests,and the test results show that the system can collect,store,backup and present network data in real time,discover network topology abnormalities in time,and alarm for illegal process and port operations,equipment abnormalities or failures in time,and meets the needs of users.