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近年来,车辆检测器被广泛应用于采集车流量、车辆平均速度率等交通流参数,为交通信号控制、交通信息发布、交通诱导等交通管理系统提供数据支撑。为监督管理车辆检测器产品质量,国家发布了《交通信息采集微波交通流检测器》(GB/T 20609)、《交通信息采集视频车辆检测器》(GB/T 24726)等标准。在产品质量检测过程中,常由于测试过程复杂、测试准确率低等原因,测试效率和测试效果受到影响。鉴于激光式传感器具有速度快,精度高,抗干扰能力强等特点,本文提出利用激光式传感器测试系统测量车辆检测车流量、平均速度等关键评价指标,提高测试效率和降低测试时间目的。
In recent years, vehicle detectors are widely used in traffic flow parameters such as traffic volume, vehicle average speed and so on, providing data support for traffic signal control, traffic information release, traffic guidance and other traffic management systems. In order to supervise and manage vehicle detector product quality, China has released such standards as “Traffic Information Acquisition Microwave Traffic Flow Detector” (GB / T 20609) and “Traffic Information Collection Video Vehicle Detector” (GB / T 24726). In product quality testing process, often due to the complexity of the test process, low test accuracy and other reasons, test efficiency and test results are affected. In view of laser sensor has the characteristics of high speed, high precision and strong anti-jamming capability, this paper proposes the use of laser sensor test system to measure the vehicle traffic flow, the average speed and other key indicators to improve the test efficiency and reduce the test time.