Research And Development Of Parking Information Service System Based On J2EE Technology

With the continuing growth of motor vehicles in our country, the problem of finding a parking place in the big cities is becoming more and more difficult. The Parking Guidance System (PGS) is an effective way to solve the problem of finding parking place, to ease the crowded traffic, to reduce the air pollution and to help the driver find parking space more quickly. Aiming at the current situation of hard parking in big cities this thesis studied and issued the systematical construction and its designing method of the parking guidance system, combining with the internet and mobile communication technology this thesis designed the wireless application system based on the Short Message Service (SMS) and WAP service of GSM internet and made it come true.Firstly, this thesis discussed the article's practical significance and the current situation of PGS,considering the cities' streets construction and its management style it put forward that we should adopt the control mode combining distribution with integration and 3-level guidance style for PGS in big cities. Meanwhile, it analyzed and designed the constructing program and systematical structure.The Parking Guidance System consists of the information collection subsystem, the information processing and controlling subsystem, the information transmission subsystem and the information distribution subsystem. According to the characteristics that the PGS has large amount of information, the information concerned in the Parking Guidance System is classified and studied the function of every subsystem.Secondly, on the base of studying system construction of short message service in GSM internet, protocol stratifies of short message and sending/receiving short message in the form of PDU, this thesis designed and developed the application system of short message service based on the wireless MODEM which includes the function of sending/receiving short message, inquiring about application as well as ordering the short message and so on.Finally, on the base of studying the wireless application protocol and WAP framework, this thesis analyzed the characters and limits of WAP. Furthermore, on the J2EE platform, it designed the application service system of WAP in the mode of MVC and made a simulation environment with an elementary function.