Study Of Key Technologies Of Railway-Side Security Monitoring Systems

With the development of railway informationization,lots of security monitoring systems have been built along the railway,and these systems play important roles in railway security.These security monitoring system covers the fields of railway. However,these systems exist many problems:Firstly,these systems use communication networks of their own and different data communication interfaces and protocols;Secondly,network infrastructure exist duplication costing.Once a new monitoring system is added,one new network is needed to built,it leads to unnecessary construction costs and low utilization of network.Last,but not least,these systems have no uniform maintenance and management platform.In order to solve problems above,In this thesis,we introduce a new solution to network of security monitoring systems network,in which several systems can use a single high performance network.The security monitoring devices scattered along the railway can be accessed in this integrated access platform via field equipments.A transparent protocol with high reliability is developed so that the solution is compatible with the existing security monitoring systems and the internal data communications of the different security monitoring systems are independent and noninterference.This platform has an open architecture,which means,a new security monitoring system can be added into the platform easily without building a new communication network, thus,the construction costs will also be saved.This thesis first introduces the current applications of security monitoring systems and then introduces the general framework of the platform and implementation of key hardware and software modules.In addition,the solution also added web-based and SNMP-based embedded remote network management,so that the authority units or users can maintain,configure and manage the systems and platforms connected to the network through browser or integrated NMS,saving maintenance and management costs.This module is not only a new and hot development fields,but also is this thesis's important researching contents. Now,the solution is in the experimental platform,from the preliminary results,the program can be established very well to complete the function,thus,the solution is a excellent solution for the problems of the current network of railway-side security monitoring systems.