The invention discloses a bridge dynamic weighing and grading alarm method based on visual strain monitoring, and belongs to the technical field of vehicle weighing. The bridge dynamic weighing and grading alarm method based on visual strain monitoring comprises the following steps: identifying vehicle parameters on a bridge, wherein the vehicle parameters comprise the number of axles, the wheelbase, the vehicle speed and the number of vehicles; monitoring the mid-span strain of the bridge; establishing a linear regression model considering uncertainty according to the linear relation between the vehicle axle load and the bridge mid-span strain and the vehicle parameters, identifying the axle load parameters of the vehicle and the confidence range thereof based on Bayesian reasoning, and finally obtaining the total vehicle weight of the vehicle and the confidence range thereof; a weight limit standard is determined based on the number of axles, and overweight grading alarm is carried out in combination with a dynamic weighing result; therefore, the precision of the monitoring system is improved, the service life of the monitoring system is prolonged, the maintenance cost of the bridge dynamic weighing system is reduced, and heavy bridges are effectively prevented from being damaged or even damaged by overloaded vehicles.

    本发明公开基于视觉应变监测的桥梁动态称重与分级报警方法,属于车辆称重技术领域;基于视觉应变监测的桥梁动态称重与分级报警方法包括:识别桥上车辆参数,车辆参数包括:车轴数量、轴距、车速和车辆数量;监测桥梁跨中应变;依据车辆轴重与桥梁跨中应变的线性关系,以及车辆参数,建立考虑不确定度的线性回归模型,并基于贝叶斯推理识别车辆的轴重参数及其置信范围,最后得到车辆的总车重及其置信范围;基于车轴数量来确定限重标准,再结合动态称重结果,来进行超重分级报警;从而提高了监测系统的精度和寿命,降低了桥梁动态称重系统的维护成本,并有效避免超载车辆对重大桥梁造成损伤甚至破坏。


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    Titel :

    Bridge dynamic weighing and grading alarm method based on visual strain monitoring


    Weitere Titelangaben:

    基于视觉应变监测的桥梁动态称重与分级报警方法


    Beteiligte:
    XING CHENXI (Autor:in) / ZHU XIAOJIE (Autor:in) / WANG HAO (Autor:in)

    Erscheinungsdatum :

    2023-07-18


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G01G Wägen , WEIGHING / G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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