公路匝道速度误差修正方法研究

Research on Speed Error Correction Methods for Highway Ramps

匝道车辆测速是匝道控速系统的核心问题。针对现有雷达测速仅能够对直行平坦道路上行驶车辆速度进行准确测量,无法对具有不同坡度、曲率影响的匝道车辆进行有效测速的难题,该文研究了一种基于二元多项式拟合的公路匝道测速误差补偿方法,通过数据拟合和标定的方式,对匝道道路环境特征进行捕捉,实现雷达测速仪匝道车辆速度测量的自适应误差补偿和测量值修正,并基于该方法开发匝道车辆测速系统,实现匝道车速值可视化标定,克服现有雷达测速仪无法对匝道车辆有效测速的技术缺陷。

Ramp vehicle speed measurement is the core issue of ramp speed control systems.In response to the problem that existing radar speed measurement can only accurately measure the speed of vehicles driving on straight and flat roads,and cannot effectively measure the speed of ramp vehicles with different slope and curvature effects,this paper studies a method for compensating for speed errors in highway ramp measurement based on binary polynomial fitting.By data fitting and calibration,the environmental characteristics of ramp roads are captured,Implement adaptive error compensation and measurement value correction for ramp vehicle speed measurement using radar tachometers,and develop a ramp vehicle speed measurement system based on this method to achieve visual calibration of ramp speed values,overcoming the technical defects of existing radar tachometers that cannot effectively measure the spped of ramp vehicles.