Research And Development Of Logistics Vehicle Terminal Software And Backend Communication System

With the rapid development of the logistics industry,the vehicle monitoring and management system as an important part of the logistics and transportation system,it is the key to promote the informationization of the whole logistics industry.Based on the GPS positioning technology,temperature sensing technology and wireless communication technology,vehicle terminal monitors the location and status information of logistics vehicles in real time by background management,and then efficiently manages vehicles in transportation process.Further,this can enhance efficiency of logistics management.Aiming at the problems,such as remote monitoring traffic status information is difficult,and communication is inconvenient,according to the demand analysis of the vehicle monitoring and management system,the thesis designs and develops the real-time monitoring and management system for logistics industry.Vehicle terminal can not only collect and monitor the state information of vehicle in real time,but also uploads information to the background monitoring system through the wireless network.Vehicle terminal communicates with backend system in real time by IM and VoIP.The main contributions are as follows:1.Vehicle terminal system migration.Terminal has ARM core processor,equipped with 3G module,infrared temperature sensor module,audio module and GPS module,according to the functional modules to complete the terminal board production.Based on this,thesis realizes the transplantation of embedded system and provides the foundation for the running environment of the program.2.Design and implementation of terminal function modules.The vehicle terminal consists of 4 modules,driving state module,communication service module,system management module,and status bar module.Driving status module collects,analyzes and displays GPS and temperature sensor data,and then uploads the packaged data to the background monitoring and management system by overrding information and transforming protocol.The communication service module implements IM communication and Vo IP functions.The system management module is used to set the terminal's parameters.Status bar module displays the status of GPS positioning,broadcast messages and other functions.3.Design and implementation of communication system.The backend communication system transmits broadcast messages,text messages and voice file messages between the backend system and the terminal.4.System functional testing.The terminal software function is tested with the logistics vehicle monitoring and management system.The test results show that the terminal traffic module can complete the collect,display and upload data on vehicle.The communication service module can realize the normal communication function between the terminal and the backend IM communication system.In addition,the logistics vehicle monitoring and management system can correctly parse and display the data.At present,the vehicle real-time monitoring and management system is already in the trial run stage.Meanwhile,the system works well and completes the target requirements.