Design And Implementation Of Beijing Subway Meteorological Early Warning System

Up to December 31,2020,a total of 44 cities in mainland China have opened urban rail operations,with a total mileage of 7,715.31 km,and 5,189 stations in operation.By the end of 2020,Beijing Subway has 16 lines and 318 stations,carrying heavy passenger transport tasks.Subway is often affected by bad weather in the process of moving,which includes safety,convenience,operation quality and so on.On July 20,2016,the upstream and downstream sections of Beijing Subway Line 4 and Daxing Line from Huangcun Xidajie Station to Yihezhuang Station were suspended due to heavy rainfall.Some trains on the Beijing Subway Line 5 and Changping Line are delayed due to wet and slippery weather on May 8,2020.In order to ensure the safety of subway operation,this paper analyzes the research status of meteorological early warning at home and abroad,designs and implements a meteorological early warning system for Beijing subway based on the investigation results of meteorological influence on subway operation.The main functions of the system include:(1)Meteorological data collection: the meteorological information of each street in Beijing is captured and matched with the subway station by using the Geohash algorithm.(2)Display of subway line drawing: provide reference for subway passengers to check stations.(3)Meteorological information inquiry: provide meteorological information reference for subway passengers’ travel.(4)Early warning information push: let subway staff and passengers know the weather early warning information in time,and provide reference for their work content and travel.(5)Data management: store meteorological information and information related to subway fault equipment,provide interfaces for staff to operate these data.The development of this project applies the principles of software engineering,and carries out the requirements analysis,outline design,detailed design,coding and testing for each module of the project.The design and implementation of this system uses Navicat as the database management tool,IDEA as the back-end development tool,Web Storm as the front-end development tool,Py Charm as the meteorological data related function development tool.According to the requirements of the system,each function is realized,and the development of the entire system is finally completed.At present,the development of this system has been basically finished,the test of each module in the system has achieved the expected results.Through the use of this system,both subway passengers and staff can get a certain degree of convenience,which shows the high application value of the system from the side.