一种自行车车载智能手机测量路面平整度的方法

A Method for Measuring Pavement Roughness with A Bicycle-Mounted Vehicle Smartphone

路面平整度的测量与可视化表达对于出行路线规划和道路养护具有重要意义。然而,现有路面平整度测量方法主要面向机动车道,少有针对非机动车道路面平整度测量的研究。针对该问题,本文提出一种实用、高效的非机动车道路面平整度测量方法。该方法通过智能手机测得骑行时自行车的竖直方向加速度数据,计算竖直加速度均方根(root mean square of vertical acceleration,RMSVA)作为路面平整度指数。在此基础上,依据RMSVA指数将路面平整度分为8个等级,并通过专门的可视化方法进行表达。本研究基于Android开发了一款路面平整度测量软件系统,并通过固定路段测试和不同材质路面测试验证了软件功能的可用性和有效性。

The measurement and visualization of pavement roughness are of great significance for travel route planning and road maintenance.However,the existing measurement methods of pavement roughness are mainly oriented to vehicle lanes,and few studies are carried on measuring the roughness of bikeways.Aiming at this problem,we propose a practical and efficient method for measuring the roughness of bike⁃ways.In this method,the vertical acceleration data of the bi⁃cycle during riding is measured by the smartphone,and the root mean square of vertical acceleration(RMSVA)is calcu⁃lated as the pavement roughness index.On this basis,the pavement roughness is divided into 8 grades according to the RMSVA index and expressed through a special visualization method.In this study,a software for pavement roughness measurement is developed based on Android,and the usabili⁃ty and effectiveness of the software's functions are verified through tests on special roads and tests on roads with different materials.