Research On Rail Traffic Safety Monitoring Technology Based On Lightweight Protocol

In recent years,rail transit in various places has entered the stage of network operation,and has gradually improved to unmanned automatic driving,which has greatly improved operational efficiency and reduced accidents caused by human factors.However,with the increasing number and variety of rail transit equipment,subway equipment has begun to move toward intelligent management.In the safety management of subways,how to strengthen the management of various subway equipment,reduce the incidence of failures,and ensure the safe operation of the subway has become an important issue.The railway track is located at the junction of the track and the rail,and is used to realize the movement and connection of the rail.Due to the misunderstanding,non-action and incomplete action caused by the environment of the turnout,a major traffic accident may be caused.The main technical indicators and status of the turnout,hydraulic oil level,and conversion resistance are also related to the overall operational effect.This paper summarizes the current status of existing ballast monitoring systems at home and abroad,discusses in detail the technical research of the ballast detection system,and systematically designs the software based on actual needs.On the basis of fully understanding the Internet of Things and big data,combined with modern intelligent sensor technology to achieve data acquisition,from the perspective of limited bandwidth transmission of field cable,a rail transit channel security monitoring system based on the Internet of Things lightweight protocol MQTT is proposed.It realizes the design of server and client and real-time data communication,adapts to the low bandwidth and unstable network environment of rail transit,and effectively saves message transmission traffic.In order to ensure the timely transmission of sensitive information,the early warning information and environmental data design data are prioritized and dynamic time slot allocation is realized,and the shortest path algorithm of graph theory is used to realize efficient information transmission.According to the security risk level assessment,the equipment fault alarm level is divided,and the functions of user and authority management requirements,real-time alarm monitoring requirements,historical alarm query requirements,and alarm statistics report requirements are designed.The functional and non-functional requirements of the ballast monitoring system were analyzed.Better improve the switch monitoring system and add a guarantee for driving safety.