RTK差分技术在网约车计费系统检测中的应用

2013年以来，随着打车软件的流行，网络约车不断进入人们的视野并活跃在全国各大城市。随之而来的网络约车软件定位不准、计程不准而导致的客户投诉也接踵而来。针对这些问题，本文提出了一套网络约车计费检测方法，采用多模多频RTK载波相位差分技术和惯性导航组合定位技术，使用基准站+流动站的RTK差分GNSS接收机、惯导模块、高精度扼流圈导航天线及回放仪记录汽车行驶过程中的信息，包括经纬度、乘车时间、速度等，通过计算得出汽车行驶里程。通过与司机手机计费结果进行比较，试验结果表明，采用载波相位差分技术和组合导航定位的技术可以有效解决定位失锁、轨迹不连续等问题。

Application of RTK in Testing for App-based Ride-hailing Billing System

Since 2013,with the popularity of a taxi software,app-based ride-hailing continuously come into our vision and become active in major cities throughout the country.Subsequently, the customer complaints that positioning are not precise and the calculating mileage is not right.To solve these problems,this paper puts forward a test method of billing for app-based ride-hailing,using multi-mode, multi-frequency RTK GPS carrier phase differential technique and inertial navigation technique,using RTK differential GNSS receiver of base station and flow station,inertial navigation module,high precision of conjugate ring navigation antenna and playback apparatus to record the information such as latitude and longitude,journey time,speed and so on when the car in the process,then it calculates the mileage of the car.By comparing with the results of driver's mobile phone,the results show that using carrier phase differential technique and inertial navigation technique can effectively solve the problem of positioning loss of lock,discontinuous of trajectory and so on.