Study On Algorithms For Wireless Sensor Network-Based Shanghai Advanced Public Transportation System

Intelligent Transportation System (ITS) is a kind of the modern transport system developed from the traditional transport technology. It is an effective way to develop Advanced Public Transportation System (APTS), which is one of the important sub models of the ITS, to improve the quality of our country transportation. Wireless sensor network (WSN) is a novel technology made by the convergence of sensor technology, micro electro mechanism technology, wireless telecommunication technology and network technology. It is suitable to transportation scenarios for the characters of rapidly deployed and self organized.According to the whole design aim of Shanghai Advanced Public Traffic System, this thesis provides a kind of APTS based on WSN technology and discusses the function of three basic models. After analyzing the two basic service of the APTS: providing the current bus status for the passenger and providing the bus position for the monitor center, the paper focuses on the algorithms design of WSN-APTS, including distance amending algorithm, localization algorithm and predicting for the bus arriving time algorithm. In the meanwhile of algorithms illustration, it also discusses the telecommunication process of the WSN as well as some forms of the data package.