Abstract:

In order to realize real-time scheduling and automatical lease of the city public bicycle, and improve efficiency in the use of vehicles, an intelligent lease system is designed based on the framework of client and server, which combined with radio frequency identification, general packet radio service and embedded technology. The client uses S3C2440 processor, and transplanted linux operating system. The client is in charge of the lease of bicycles automatically and transmits user information, distributed sites geography information and terminal state to server in TCP(Transmission Control Protocol); at the same time the server application is developed in windows system based on TCP(Transmission Control Protocol), for the purpose of data receiving
and distribution statistic of the bicycles and making scheduling strategy if necessary. After programming and debugging, the test results show that the system is stable and the client's data can be transmitted to server safely and reliably via the GPRS(General Packet Radio Service) network in real time and achieve the requirement of real-time transmission of the data.

Key words: general packet radio service, radio frequency identification, transmission control protocol(TCP), client/ server, embedded processor