【摘要】 分析了网约车计程计时的现状,阐述了目前网约车计程计时的原理,利用光栅测距原理建立了一套新型的网约车计程计时检测装置,选取六种典型场景进行了大量的道路测试。结果表明,城市峡谷的多径效应和隧道的GNSS卫星信号严重遮挡,容易使网约车计程结果超出-4%～+1%的范围;网约车平台不满1 min按1 min计时,也会影响到计时误差≤1.5 s的检测结果判定。本文通过实验,追溯了网约车计程计时的误差来源,从而针对提高网约车计程计时的准确性提出了相关的建议。更多还原

【Abstract】 This paper analyzes the present situation and expounds the principle of ride-hailing calculating mileage and time. Based on optical grating ranging technology, a new measuring device of ride-hailing calculating mileage and time is established, 6 different typical scenes are selected for real road tests. The experimental results show that, the ridehailing calculating mileage results usually exceed the range of -4%～+1% in urban canyons with multipath effect, or tunnels without GNSS(Global Navigation Satellite System) signals; in addition the timing algorithm of the ride-hailing service platforms, which calculate less than one minute as one minute, also affects result judgment with timing error should ≤1.5 s.Based on the experimental results, this paper explains the error sources of ride-hailing calculating mileage and time, finally, relevant suggestions are made to improve the accuracy of ride-hailing calculating mileage and time.更多还原