The invention relates to the technical field of radio frequency identification non-motor vehicle overspeed, and discloses an electric bicycle overspeed discrimination method based on radio frequency positioning speed measurement, which comprises the following steps: S1, obtaining label information, first phase information and first time information; s2, obtaining label information, second phase information and second time information; s3, determining a speed initial value by using the first phase information, the first time information, the second phase information and the second time information; s4, multiplying the speed initial value by a correction coefficient k to obtain a speed correction value, 0.7 < = k < = 1; s5, reporting a speed correction value exceeding a threshold value and label information of the speed correction value; according to the method, by calculating the phase difference, the relative distance from the tags to the antenna and the instantaneous speed of the bicycle can be obtained, the radio frequency antenna can continuously check all the tags in the field in a microsecond-level period, the running speed of the electric bicycle can be monitored in real time in a traceable mode without losing the bicycle, and the overspeed violation can be avoided.
本发明涉及射频识别非机动车超速技术领域,公开了一种基于射频定位测速的电动自行车超速判别方法,包括:S1,获取标签信息、第一相位信息和第一时间信息;S2,获取标签信息、第二相位信息和第二时间信息;S3,利用第一相位信息、第一时间信息、第二相位信息、第二时间信息确定速度初始值;S4,将速度初始值与矫正系数k相乘,获得速度矫正值,0.7≤k≤1;S5,上报超过阈值的速度矫正值及其标签信息;该方法通过对相位差进行计算,可以获得标签至天线的相对距离以及车辆瞬时速度,射频天线能够以微秒级周期持续盘点场内全部标签,做到不丢车、可追溯地实时监测电动自行车的行驶速度,让超速违章无处可逃。
Electric bicycle overspeed discrimination method and system based on radio frequency positioning speed measurement
一种基于射频定位测速的电动自行车超速判别方法及系统
2023-05-30
Patent
Electronic Resource
Chinese
Automatic speed reduction device for shared electric bicycle during overspeed
European Patent Office | 2021
|European Patent Office | 2020
|Overspeed detection method and system based on vehicle positioning
European Patent Office | 2024
|System and method for conveniently positioning overspeed vehicle
European Patent Office | 2021
|