Study And Design On Location System Of Railway Container In Railway Station Based On ZigBee Technology

Modern container transport is the main direction of the logistics industry and the development direction of rail freight transport. In the existing management information system of rail transport, the majority of the tracking technology is one-on-one communication model, it can't find the specific location of the container at any time, so that it is difficult for the existing system to achieve the high accuracy of real-time location tracking, and make high improvement in Management. In order to improving the lack of stations and the efficiency of information management, I decide to use the up-to-date ZigBee technology and Wireless sensor networks as well as RSSI-based positioning algorithm as the research topic, to design the positioning system for tracing the cargo containers terminal at the high real-time positioning tracking.This paper mainly studies on the practical container positioning technology in rail freight station environment around the ZigBee-based network technology and positioning system for Wireless Sensor Networks. Main contents are as follows:1) This paper study the location algorithm of rail freight container by the way of combining with RSSI ranging method and Bounding inbox location algorithm.2) Analyse and study the streamlined version of ZigBee communication protocol based on TI's CC2430 chip, grasp the key principle of network communication and the packet processing mechanism, and design the upper application program PP_FSM to get link RSSI information and to achieve its transmission between sensor nodes in the networks.3) This paper also describes the details of research and development on this system, mainly include system requirement analyses, introduction of hardware platform, framework and architecture of the location system, which especially discuss the practical application of the location algorithm and ZigBee network technology. At the same time, design the test plan in detail for the railway station container location system which have been realized, for the system evaluation and analysis of the node information RSSI collection module, console module.