北斗在移动资产定位系统中的应用

Application of Beidou in Mobile Asset Positioning System

针对人们日常生活和工作中移动资产存在的安全风险问题,设计了一套基于北斗定位和安卓技术的定位系统,以实现移动资产定位追踪和位置信息上报。系统包括资产定位硬件终端和人机交互手机客户端两部分。硬件终端以低功耗微处理器MSP430为核心实现信息处理与交互,由北斗和GSM模块为移动资产提供定位信息。在卫星信号较好的室外,直接通过北斗进行定位;而在室内卫星信号较弱或卫星信号丢失时由GSM辅助定位,从而最大限度地保障移动资产位置信息不丢失。资产位置信息由GSM模块通过移动通信网络发送至客户端。手机客户端采用JAVA语言进行开发,具备资产位置查询、移动路径显示等功能,方便用户对资产进行实时定位追踪。试验测试结果表明,该系统运行稳定、可靠,能够在室内、外等多种环境中准确定位追踪移动资产,为移动资产的安全提供有力保障,同时也为北斗技术在工农业领域的应用提供参考。

Aiming at the security risks of mobile assets in human daily life and work,a set of positioning system based on Beidou positioning and Android technology has been designed for realizing functions of positioning tracking of mobile assets and location information reporting. The system is composed of the hardware terminal and the human machine interactive mobile phone client.In hardware terminal,the low power consumption microprocessor MSP430 is adopted as the core,to achieve information processing and interaction. The location information of mobile assets is provided by Beidou and GSM modules. In outdoor,when the satellite signals are better,the positioning is directly realized via Beidou,while in indoor,if the satellite signals are weak or lost,the positioning is realized with help of GSM,to ensure the location information of mobile assets not being lost. The location information of assets is sent to the client through mobile communication network. Mobile phone client uses JAVA language for developing functions including location query,path display,and real time position tracking,etc. The test results show that the system works stably and reliably,and it can guarantee the safety of mobile assets in a variety of indoor and outdoor environments.In addition,this system may offer inspiration to application of Beidou technology in industrial and agricultural fields.