网约车计程计时现状分析及新型检测技术

Present situation analysis and new test technology research of ride-hailing calculating mileage and time

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。

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.