Design And Implementation Of PIS System For Mobile Terminal Users

With the rapid development of economy and the continuous progress of urbanization,the city's traffic pressure is growing.Due to fast and convenient features of rail traffic,the major cities in the country are accelerating the construction of rail transit.Passenger Information System as the most direct participant of interaction with the passengers plays a great role in guiding passengers,emergency evacuation and divert traffic flow.Passenger information system displays vehicle video through the LCD screen,and provides station and emergency information service for passengers through the train radio and LED screen.But,because of too many passengers in the train and the noisy environment,many passengers cannot easily get the relevant information of train operation.In recent years,intelligent mobile terminals and mobile-related technologies have rapidly developed.The research of combining the PIS system and mobile becomes increasingly popular.This thesis presents a design scheme of the PIS system for mobile terminal users,using B/S software architecture.HTML5 and Node.js are used to realize real-time push of train operation data and no plug-in playback of vehicle video.AngularJS framework is used to construct a single-page application for the mobile terminal and Bootstrap is used to complete the adaptive layout of the page.This thesis uses MongoDB database to store the data,realizes the real-time push of the data using the WebSocket,provides emergency information and arrival reminder for passengers by analyzing the real-time data and the station chosen by passengers,it also provides entrance which can get the detail information of train operation.The background management function is provided to manage the vehicle video data.This thesis first introduces the overview and development of PIS system and mobile terminal.Then it introduces the commonly used software development framework and the hardware platform of PIS system.The function requirements of the system are analyzed and refined.Then the related technology and communication protocol used by the PIS system are described.The overall design of the system and the concrete realization of the system are described in detail,it mainly includes train operation data acquisition module,client module,server module and background management Module.Finally,the PIS system for mobile users is tested and summarized.