The invention relates to a system and method for detecting a positioning error of a whistling monitoring system. The detection system comprises a standard sound source, an intelligent camera, a laser range finder, an intelligent trolley, a signal generation device and a computer. The standard sound source, the intelligent camera and the laser range finder are installed on the intelligent trolley, and the intelligent camera obtains the relative angle relation between the standard sound source and the whistling monitoring system in the movement process through a deep learning algorithm; the laser range finder measures the linear distance from the standard sound source to the whistling monitoring system; the signal generating device controls the standard sound source to emit a specific frequency signal in a range of 2-5kHz; the computer program-controlled intelligent trolley carrying the detection system performs far-near-far movement relative to the whistling monitoring system, outputs a dynamic positioning error curve corresponding to the whistling monitoring system by taking time as a synchronization quantity, sound source frequency and a distance between the time and the sound source frequency as independent variables, and detects an effective identification area of the whistling monitoring system by taking a certain positioning error value as a boundary. Through the system and the method, the dynamic positioning error and the effective identification area index of the whistling monitoring system can be objectively detected.

    本发明涉及一种鸣笛监测系统定位误差检测系统及方法,检测系统包括标准声源、智能摄像头、激光测距仪、智能小车、信号发生装置和计算机。智能小车上安装了标准声源、智能摄像头和激光测距仪,智能摄像头通过深度学习算法获取运动过程中标准声源与鸣笛监测系统的相对角度关系;激光测距仪测量标准声源到鸣笛监测系统的直线距离;信号发生装置控制标准声源发出2‑5kHz范围内的特定频率信号;计算机程控搭载检测系统的智能小车相对鸣笛监测系统做远‑近‑远的运动,以时间为同步量,声源频率、两者距离为自变量,输出鸣笛监测系统对应的动态定位误差曲线,以一定的定位误差值为界限,检测鸣笛监测系统的有效识别区域。通过这个系统和方法可以客观地对鸣笛监测系统的动态定位误差和有效识别区域指标进行检测。


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    Titel :

    System and method for detecting positioning error of whistling monitoring system


    Weitere Titelangaben:

    一种鸣笛监测系统定位误差检测系统及方法


    Beteiligte:
    ZHOU YUN (Autor:in) / ZHENG HUIFENG (Autor:in)

    Erscheinungsdatum :

    2022-01-28


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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