Bus Monitoring System Based On Embedded Technology

In the background of "energy-saving emission reduction" and "bus priority", more and more people take the bus as means of transport. However, in transit career monitoring there are bad phenomenon such as monitoring incapable, dispatching untimely and inaccurate traffic checking, etc. GPS/GPRS(global positioning technology), with a broad global coverage, a wide range of functions and higher precision, is not suitable in the traffic management system, which results from the limited economic condition and range of applications. So this thesis realizes public transport vehicle real-time monitoring and intelligent scheduling by using Embedded technology and Radio Frequency Identification technology.The main research content and results are as follows:1、Taking the modular design and extendibility and so on into account, this thesis details the overall structure of Bus monitoring system and analyzes the principle and application of the Embedded technology and Radio Frequency Identification technology. The design of Bus-mounted system using S3C2440in Samsung company as its hardware development platform, and transplanting Embedded Linux operating system as the software development environment, on the design of system interface using Qt/E based on the Linux operating system. So it realizes the information collection of buses, automatic bus stops, the recording electronic form, the alerting of exception, the querying of traffic information, the receiving of bus information, and so on. The Monitoring and Dispatching center realizes the logining of bus drivers, the operator and querying of buses, the processing of exception and so on, which using VC++6.0as its software development environment, combined with the SQL Server2000database. This thesis focuses on the transplantation of Embedded Linux operating system, and the application of Radio Frequency Identification technology in the bus monitoring system.2、On the implementation of the system, firstly constructs the embedded development environment, including the establishment of cross-compiling environment, the BootLoader transplantation, the configuration and tailoring of Embedded Linux kernel, the structure of the file system, and improves perfectly embedded GUI and bottom drives. This thesis design the hardware and software of the monitoring system of Embedded bus on the basis, shows the main hardware introduction, the principle diagram, analysis and design software flow chart, and then studies the GSM communication protocol and prevent collision technology, etc. The system, with certain extensibility, can meet the quirement of transport intelligent, and it is suitable for large and medium-sized cities bus and has high practical value.