Research On Logistics Monitoring System For Special Items

The specialitems about the logistics monitoring systemcontent dangerous goods,low temperature goods,precise cultural relic and so on.The whole goods have a common that their logistics chain is very fragile and if any accident happen,the consequence will be very serious and maybe cause huge danger or a painful lose.So the logistics monitor system this paper presents is to deal with the problem.Because of the special properties of some certain goods,the system needs more strictly request in the process of transport and storage.It needs more accurate monitor technology and more comprehensive layout.The main contents of this paper include:1 Complete the design and implementation of the overall framework for the special goods logistics monitoring system model.The frame of the system includes three parts:(1)Mobile positioning terminal:it has a micro-processor and is used to bind with goods,to receive the positioning signal and to realize the positioning software program.(2)Mobile communication network:we can use the 3G Wireless network protocol of CDMA2000 to transmit data fluently from part one to part three.(3)Monitoring service system:Socket Mina architecture can be founded to achieve parallel communication of remote terminal.2 Design the developed base station positioning project,which introduce the underlying point to improve the Chan algorithm and the positioning accuracy in the theory of TOA/TDOA technology.This project can be used as the supplementarypositioning method for GPSbecause the GPS satellite signal has some destabilizing factors such as the complex condition of urban road or the closed warehouse,while the build of base station is flexible and its signal is stable under the coverage area.3 Design and complete the process and functions of the collector implementation,including its interface,process,the design and the realization of Path separation algorithm.This collector program is the important parameter for base station location.