Design And Implementation Of Vehicle Remote Monitoring Software In Subway Operation Center

With the growth of passenger flow volume in urban rail transit traffic,the problem of the service quality of the on-line train is gradually highlighted,such as the safety of personal and property of passengers in the train,the detection and prevention of subway crime,the evacuation of passengers in emergency situations,the command and rescue problems after disaster.Although the existing on-board monitoring system has played a large role in solving the above problems,but in order to further improve the quality of service,achieving the monitoring of the carriage in on-line train at the subway operation center becomes a new demand.At present,most remote monitoring software only achieves the preview on-demand function,not combines with Passenger Information System(PIS)alarm information and fault information,so that emergency situations could not be found in time;without the function of remote playback the video in Network Video Recorder(NVR)causing the inconvenience of accident investigation.Therefore,there is much enhanced and improved space for remote monitoring software.In order to further improve the service quality of the on-line train,this thesis designs and realizes vehicle remote monitoring software of the subway operation center.The design and development of the software interface are completed based on Qt framework.It realizes the management of all the monitoring equipment of the running train through SQLite.It realizes the real-time monitoring of the running train and the remote playback and downloading of the video in NVR through libVLC multimedia framework.It combines with PIS alarm and fault data to achieve the alarm linkage display and fault real-time monitoring.This will improve the ability of the operational center monitoring staff to grasp the situation of the train on-line,to hand the emergency,and to command the rescue.The software implemented in this thesis enhances the guarantee of the safety and stability of the operation of the train,enhances the safety of life and property protection of passengers,and thus improves the quality of service operation of the subway.This thesis first introduces the on-board PIS system and vehicle remote monitoring system of subway operation center,analyzes the development of the vehicle remote monitoring system of subway operation center,and puts forward the significance of this article.Second,combined with the contents of vehicle remote monitoring and the operation need of monitoring personnel the software requirements are analyzed and then according to the specific function of the software the overall structure of the software are designed.Then,the concrete realization process of the equipment management module,the main preview module,the remote playback module and the alarm linkage and fault display module are introduced.Finally this thesis builds a test environment,and then tests the software according to its functional module.At present,the software has been used in a subway project.