单点与双点激光融合算法在道路纵剖线检测中的性能对比研究

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中图分类号：TP212.1；U416.2 文献标识码：A 文章编号：2096-4706（2025）23-0138-05

Comparative Study on Performance of Single-point and Dual-point Laser Fusion Algorithms in Road Longitudinal Profile Detection

ZONG Yan'， WANG Daiwei¹， DAI Ronglong²，GAO Zhanyuan²，LUO Wenting²，LI Lin² （1.Jiangsu Expressway Engineering Maintenance Technology Co.，Ltd.，Nanjing 211o6， China; 2.College of Transportation Engineering，Nanjing Tech University，Nanjing ， China）

Abstract：To correct the error caused by the change of vehicle attitude，this paper compares and studies the performance of single-pointanddual-pointlaser fusionalgorithms inroadlongitudinalprofiledetection.Thesingle-pointlaseralgorithm combinesIMUdata tocompensatefor thepitchangle，utitissusceptibletoveiclevibration，whichleadstoeroraccuulation. Thedual-pointlaseralgorithmutilizes frontandrearlasersensors tocalculatethecompensationangleinreal tme，effctively corrects vehicle tilt，and improves measurement accuracy. Experiments show that the RMSE （ 0.0048m ，MAE 0.0036m） and maximum error 0.0158m ）of the dual-laser algorithm are significantly beter than those of the single-point laser algorithm （withareduction ofover 70% ）.Power spectrumanalysis verifies the frequency domainstabilityof the dual-laser algorithm，and therepeatabilitytestshowsthatitslongitudinalprofilemorphologyanddetailsarehighlyreproducible.Theresearchindicates thatthedual-laseralgrithmpoessesgreateradvantages inprecisionandanti-terference，andissuitableforigprecision pavement detection.

Keywords： single-point laser; dual-point laser; road longitudinal profile; IMU

0 引言

道路表面纵剖线的高精度检测对于智能交通系统、自动驾驶技术以及道路养护管理具有关键作用。（剩余6428字）