The Design And Implementation Of Wireless Intelligent Bus Terminal Based On GPRS

Intelligent Transportation System (ITS) is the direction of the development of urban transportation system, and is very important to the solution of the urban transportation problem. To facilitate the optimization of urban traffic operations, scheduling management, ease congestion, the public transport business must be developed. The construction of intelligent transportation systems could optimism operational management, improve public transportation system efficiency and service level, and is an important step of the development of urban public transport.Consult a lot of literatures and designs, based on GPS and GPRS technology, the thesis proposed a design and implementation of wireless intelligent bus terminal Based on GPRS.GPRS-based wireless intelligent transportation terminal is an important part of the entire system, which responsible for data acquisition, data reception, data processing and wireless data communications implementation. This paper describes the intelligent bus system based GPRS wireless terminal design and implementation, including key technology used in the system design, the overall design of the wireless transmission terminal, the hardware circuit design, software process design, system debugging and results presentation. The basic technologies in intelligent transportation system including:GPRS, WiMAX, GPS, GIS; The overall design proposed a terminal functional requirements; The hardware design give each module specific hardware design schematics, and the hardware selection, schematic design of the key problems are analyzed; in software design, software design is analyzed, given the system design of the terminal software program flow maps and the existence of software design problems and give a summary of software design; Finally, hardware and software co-debugging process a detailed description of the debugging process results and give the map display.Complete the entire system, run the test, then modify and optimize the defects. The wireless transmission system has achieved a vehicle POS machine data collection, wireless transmission, GIS real-time monitoring and many other functions, and put into trial operation in Changsha city bus lines, the community responded well.