摘要
目前,自动卸货车已成为一种趋势,用无源RFID系统对列车进行行程定位的方法较为新颖。通过无源RFID系统设计测距定位算法和非测距定位算法,并对基于RSSI值测距进行了仿真分析并得出了测距定位的主要影响因子对测距的影响效果;通过搭建实验平台,对利用RSSI信号变化规律的非测距定位技术进行了模拟实验,试验表明,该系统的定位精度在±10cm,若列车在低速行驶状态下,该实验的精度可实现卸货列车车辆行程定位且满足卸货需要,有很大的应用价值。
At present, the automatic unloading train has become a trend, and the method of using passive RFID system for travel positioning of train is novelty. By using passive RFID system, ranging localization algorithm and non-ranging localization algorithm are designed, and carries on the stimulation analysis for the ranging based on RSSI value, it concludes that the main factors that influence the ranging positioning effects on the range. Through constructing the experimental platfon-a, the simulated experiment for using RSSI signal change rule of non-ranging positioning technology is done. Experiment shows that the accuracy of the positioning system is within 10cm, if the train works in low-speed driving conditions, this experimental accuracy can realize the travel positioning of freight Vehicle and meets the need of uploading. It has great application value.
出处
《自动化技术与应用》
2015年第10期6-10,73,共6页
Techniques of Automation and Applications
关键词
行程定位
无源RFID
测距定位
非测距定位
RSSI检测
travel positioning
passive tag
ranging localization
non-ranging localization
RSSI detection
