Comprehensive bridge detection device

Abstract

The invention discloses a comprehensive bridge detection device comprising a cross rail, longitudinal rails, a rail car, an onboard unit and a monitoring system. The longitudinal rails are used for being fixed to a bridge or accessory structures of the bridge, the cross rail is used for being arranged on the longitudinal rails and capable of moving along the longitudinal rails, the rail car is used for being arranged on the cross rail and capable of moving along the same, the onboard unit is used for being mounted on the rail car and comprises a camera device, and the monitoring system comprises a communication subsystem, a control subsystem and a testing subsystem. The communication subsystem is used for realizing communication between the rail car and the onboard unit, the control subsystem is used for controlling moving and positioning of the cross rail, the rail car and the onboard unit, and the testing subsystem is sued for detecting states of the bridge according to bridge pictures which are shot by the camera device. The comprehensive bridge detection device has the advantages of low cost, high efficiency, reliable performance and the like, and can support detection of multiple indexes such as bridge cracks, bearings, deflection or inclination.

Description

technical field [0001] The invention relates to the technical field of bridge detection, in particular to a comprehensive bridge detection device. Background technique [0002] At present, in bridge inspection, the contents that need to be inspected include: bridge cracks, bridge bearing condition, main girder deflection or bridge pier inclination and other parameters. [0003] Among them, the detection methods of bridge bottom cracks mainly include: manual inspection, small aircraft inspection, bridge inspection vehicle inspection with photography function, etc. Among them, manual inspection is easily affected by personal factors such as experience and emotion. At the same time, manual inspection has problems such as difficulty in ensuring personnel safety and low inspection efficiency; small aircraft inspection technology is not yet mature, and it is difficult to guarantee inspection quality; There are two types, one is to install the track on the working platform of the ...

AI Technical Summary

Problems solved by technology

Among them, manual inspection is easily affected by personal factors such as experience and emotion. At the same time, manual inspection has problems such as difficulty in ensuring personnel safety and low inspection efficiency; small aircraft inspection technology is not yet mature, and it is difficult to guarantee inspection quality; There are two types, one is to install the track on the working platform of the inspection car, and the car with the camera is installed for inspection; the other is to install several cameras and sensors on the manipulator for inspection, but these two methods are currently professional. Both the degree of modernization and intelligence are low

[0004] Among them, force sensors are often used to detect the condition of bridge supports, but the use of force sensors has the problem of low work efficiency, and at the same time, it cannot detect the displacement and void of supports at the same time.

[0005] Among them, bridge deflection detection is mainly based on the deflection measurement technology based on the connecting pipe, but this technology is easily affected by factors such as liquid flow characteristics, connecting pipe material and size, liquid density, gravity acceleration, temperature changes, etc., not only installation and maintenance Higher cost and more difficult to ensure long-term accuracy of the test

[0006] To sum up, the various detection technologies for bridge cracks, bearings, deflection or inclination and other indicators still have technical immaturity or cost problems, especially basically all detection devices only support single indicator detection, and do not support multiple indicators. detection

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