基于RFID阵列的无轨AGV系统的研究与设计

为改进有轨自动导航小车(AGV)的不足,研究一种基于RFID阵列的无轨AGV系统。该系统包括RFID阵列地板、无线通信网络、上位机、运行场地地图、小车运行控制系统;AGV安装若干RFID读卡器,运行在RFID阵列地板上,运行时通过读取地板下RFID电子标签的ID号,并通过无线通信网络发送到上位机;上位机构建和存储RFID阵列地板地图,上机位将接收到的ID号与存储的地图进行对照,计算出小车当前的位置的运行姿态,依据预设的运行路径生成AGV当前的控制指令并通过无线网络发送小车,控制小车的运行。系统通过利用RFID与地图实现定位,上位机生成控制指令的方式,实现AGV无轨运行。验证测试结果表明,AGV在预设运行路径上行驶,平均定位精度5cm,实用性好,稳定性高。

Research and Design of Trackless AGV System Based on RFID Array

In order to improve the shortage of orbital AGV, a trackless automatic guided vehicle (AGV) system based on RFID array is studied. This system includes an RFID array floor, wireless communication network, a host computer, operation site map, vehicle operation control system. The AGV is equipped with a plurality of RFID readers, which are run on the floor of the RFID array. The ID number of the RFID electronic tag under the floor is read by the mobile phone and transmitted to the master computer through the wireless communication network. The master computer constructs and stores the RFID array floor map. The upper position compares the received ID number with the stored map, calculates the running posture of the current position of the vehicle, generates the current control command of the AGV according to the preset running path, and controls the operation of the vehicle through the wireless network, so as to achieve trackless operation. By using RFID to positioning with maps and using the host computer to generate control commands and the host computer generates control commands, the system realizes the trackless operation of AGV. The verification test results show that the AGV is driven on the running path by default, and the average positioning accuracy is <5 cm, which has good practicability and high stability.