Structural inspection system of quay crane based on quadrotor UAV

Abstract

The present invention discloses a quay crane structure detection system based on a quadrotor unmanned aerial vehicle. The system comprises an unmanned aerial vehicle subsystem, a task pod subsystem and a ground control measurement and control subsystem. The unmanned aerial vehicle subsystem employs a quadrotor unmanned aerial vehicle platform, and comprises a quadrotor unmanned aerial vehicle, and a flight control computer, a flight navigation module, an obstacle avoidance module and a power driving device which are built by the quadrotor unmanned aerial vehicle; the task pod subsystem includes a holder carrying a visual light high-definition camera and a signal transceiver; and the ground control measurement and control subsystem includes a ground controller and a ground computer. The quay crane structure detection system based on the quadrotor unmanned aerial vehicle is simple in structure, convenient to use and is limited by the limitation of the time and the space. The unmanned aerial vehicle can perform near-distance, multi-angle and omnibearing high-definition camera of the quay crane, can be hovered in air for long-term camera of a certain point, can transmit the image to a ground computer to timely and accurately discover the metal structure problem of the crane and solve the potential safety hazard to ensure the safety operation work of the crane.

Description

technical field [0001] The invention relates to a detection system, in particular to a structure detection system of a quay crane based on a four-rotor unmanned aerial vehicle platform, and belongs to the technical field of detection of crane structure damage. Background technique [0002] Large cranes are widely used in logistics, metallurgy, manufacturing, construction and other fields, and their safe operation is related to the lifeline of enterprises. Its main metal structure is manufactured by welding, and defects such as cuts, undercuts, and microscopic cracks are likely to form fatigue sources for cracks, and structural components have defects during the metallurgical manufacturing process. In addition, the crane operates in a harsh environment all the year round. In addition to bearing fixed loads and working loads, the metal structure also often bears additional loads such as impact loads and wind loads. Expand until the security of the whole machine is destroyed. ...

AI Technical Summary

Problems solved by technology

Many quay cranes with structural damage are still in service. This practical problem has posed a safety hazard to the safe production of the port.

The existing detection methods mostly use artificial telescopes to observe the metal structure of the crane. The limitation of this method is that the detection distance is relatively long, and there is a visual blind spot, and it cannot observe the metal structure of the quay crane at close range, from multiple angles, and accurately.

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