Abstract To promote the application of the online verification method in the field verification of vehicle speed measuring devices, a mobile reference instrument for online measurement of road vehicle speed based on multi-target 3D tracking radar is developed. The design requirement of the mobile reference instrument is firstly introduced. Then the working principles of speed, distance and angle measurement used in the reference instrument are analyzed, and the traceability method of speed measurement and uncertainty evaluation of speed measurement error of the reference instrument are described. Finally, the full-range simulated calibration tests in the laboratory and the large samples field comparison tests in actual traffic are carried out. The results show that the speed measurement errors of the mobile reference instrument are within ±0.5km/h at the speed value in the range of 10～100km/h and ±0.5% at the speed value in the range of 100～300km/h, and the accuracy rate of lane measurement is 100%.
DU Lei,SUN Qiao,BAI Jie, et al. Mobile Reference Instrument for Online Measurement of Road Vehicle Speed Based on Multi-target 3D Tracking Radar[J]. Acta Metrologica Sinica, 2022, 43(3): 378-385.
［1］JJG 527-2015固定式机动车雷达测速仪检定规程［S］. 2015.
［2］JJG 528-2015移动式机动车雷达测速仪检定规程［S］. 2015.
［3］JJG 1074-2012 机动车激光测速仪检定规程［S］. 2015.
［4］JJG 1122-2015 机动车地感线圈测速系统检定规程［S］. 2015.
［5］孙桥, 蔡常青, 张跃, 等. 基于多普勒频移观测值的机动车GPS测速仪校准技术的研究［J］. 计量学报, 2010, 31(5): 456-459.
Sun Q, Cai C Q, Zhang Y, et al. Study on Calibration Technique for GPS Vehicle Speed-Measuring Device Based on Doppler Frequency Shift Measurement［J］. Acta Metrologica Sinica, 2010, 31(5): 456-459.
［6］白银, 孙桥, 杜磊, 等. 移动式机动车现场标准测速仪溯源技术的研究［J］. 计量学报, 2015, 36(1): 72-76.
Bai Y, Sun Q, Du L, et al. Study on Tracing Technique for Field Test Mobile Reference Vehicle Speed Meter［J］. Acta Metrologica Sinica, 2015, 36(1): 72-76.
［7］Fan Z, Sun Q, Du L, et al. Janus-configured all fibre laser Doppler velocimetry［J］. IET Optoelectronics, 2018, 12(1): 50-54.
［8］Du L, Sun Q, Cai C Q, et al. A vehicular mobile standard instrument for field verification of traffic speed meters based on dual-antenna Doppler radar sensor［J］. Sensors, 2018, 18(4), 1099.
［9］戴金洲, 彭铁军. 非接触式测速仪检测方法浅析［J］. 中国计量, 2010(4): 110-111.
［10］蔡常青, 孙桥, 张跃, 等. 机动车激光测速仪校准技术的研究［J］. 计量学报, 2008, 29(4): 339-343.
Cai C Q, Sun Q, Zhang Y, et al. Study on Lidar Calibration Technique for Vehicle Speed-Measuring Device［J］. Acta Metrologica Sinica, 2008, 29(4): 339-343.
［11］孙桥, 杜磊, 白杰, 等. 全国非接触式汽车速度计比对的研究［J］. 计量学报, 2020, 41(11): 1386-1390.
Sun Q, Du L, Bai J, et al. Research on Non-contact Speed Meter Comparison in China. Acta Metrologica Sinica, 2020, 41(11): 1386-1390.
［12］Wynands R, Kupper J, Borchers A, et al. Uncertainty evaluation of the PTB stationary reference facilities for road vehicle speed［J］. Metrologia, 2020, 57(2), 025012.
［13］杜磊, 孙桥, 林峰, 等. 基于真实交通状况的固定式机动车现场测速标准装置［J］. 计量学报, 2018, 39(2): 207-212.
Du L, Sun Q, Lin F, et al. Fixed Standard Instrument for Field Tests of Vehicle Speed Measuring Devices Based on Actual Traffic［J］. Acta Metrologica Sinica, 2018, 39(2): 207-212.
［14］杜磊, 孙桥, 蔡常青, 等. 侧装机动车雷达测速仪天线计量关键技术指标研究［J］. 计量学报, 2013, 34(1): 36-40.
Du L, Sun Q, Cai C Q, et al. Study on Antenna Key Metrological Technical Parameters for Across-the-road Vehicle Radar Speed-measuring Device［J］. Acta Metrologica Sinica, 2013, 34(1): 36-40.
［15］JJG 771-2010机动车雷达测速仪检定装置检定规程［S］. 2010.
［16］Du L, Sun Q, Bai J, et al. Speed Calibration and Traceability for Train-Borne 24 GHz Continuous-Wave Doppler Radar Sensor［J］. Sensors, 2020, 20(4), 1230.
［17］杜磊. 机动车雷达测速仪检测方法的研究与检测装置的研制［D］. 北京: 中国计量科学研究院, 2012.
2022, Vol. 43 
