基于RFID与GPS的拖拉机机库信息管理系统的设计与开发

Design and development of tractor hangar information management system based on RFID and GPS

针对一些大型拖拉机机库的管理过程中,产生的数据量庞大,传统依靠人工手动录入的管理方式效率低下、成本高、可靠性低等问题,结合互联网、传感器、智能定位等技术设计并开发一套拖拉机机库信息管理系统。该系统分为移动端和机库端的开发,移动端使用GPS进行拖拉机室外定位,结合拖拉机作业幅宽,计算得到拖拉机的作业面积等信息,开发移动端人机交互界面。机库端先对射频识别(RFID)的硬件电路进行设计,再使用Landmarc定位算法进行拖拉机室内定位,最后综合机库内的环境参数和移动端上传的作业信息等,开发拖拉机在线管理可视化平台。为验证系统的可行性,进行Landmarc算法的定位仿真、作业面积计算准确性验证、数据上传丢包测试。试验结果表明:拖拉机室内定位的平均误差为1.06 m,可以满足判断拖拉机车位的要求;作业面积计算的平均误差为4.17%,可以满足实际作业时的需求;数据存储成功率为97.70%,能够实现各项数据的存储。

In view of the huge amount of data generated in the management process of some large tractor hangars,the traditional management method of manual input is inefficient,high cost and low reliability,and a set of tractor hangar information management system is designed and developed in combination with the Internet,sensors,intelligent positioning and other technologies.The system is mainly divided into mobile terminal and hangar end development,the mobile terminal uses GPS for tractor outdoor positioning,calculates the tractor working area and other information combined with the tractor working width,and develops the mobile terminal human-computer interaction interface.At the hangar end,the hardware circuit of radio frequency identification(RFID)is designed first,and then the indoor positioning of the tractor is carried out using the Landmarc positioning algorithm,and finally,the tractor online management visualization platform is developed by integrating the environmental parameters in the hangar and the operation information uploaded by the mobile terminal.In order to verify the feasibility of this system,the positioning simulation of Landmarc algorithm,the verification of the accuracy of the operation area calculation,and the packet loss test of data upload are carried out,and the test results show that the average error of the indoor positioning of the tractor is 1.06m,which can meet the requirements of judging the tractor parking space,and the average error of the operation area calculation is 4.17%,which can meet the needs of actual operation.The success rate of data storage is 97.70%,which can realize the storage of various data.