A method and system for preventing collision of a gantry crane

By installing laser scanning units around the gantry crane boom, obstacles are scanned in real time, and the protected area and running trajectory are calculated in combination with motion state parameters. This solves the problem of collision detection between the gantry crane boom and obstacles and adjacent gantry crane booms, and improves the safety and accuracy of port operations.

CN117466162BActive Publication Date: 2026-07-03WUHAN GANGDI INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN GANGDI INTELLIGENT TECH CO LTD
Filing Date
2023-11-15
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing technologies cannot effectively detect the collision risk between the gantry crane boom and surrounding obstacles, and there are errors in calculating the collision between adjacent gantry crane booms, resulting in reduced safety and a high false alarm rate.

Method used

By installing laser scanning units around the gantry crane boom to scan obstacles in real time and obtain point clouds, the protected area and running trajectory are calculated by combining motion state parameters, the number of obstacles and potential collision risks are determined, and the gantry crane is controlled to stop running.

Benefits of technology

It enables precise collision avoidance detection of surrounding obstacles and adjacent gantry crane booms, reducing false alarm rates and improving the safety and accuracy of port operations.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117466162B_ABST
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Abstract

The application provides a gate machine arm frame anti-collision method, which comprises the following steps: acquiring motion state parameters of each gate machine; installing a laser scanning unit on the gate machine to scan the arm frame motion area in real time and acquire point clouds of obstacles; calculating a protection area of the arm frame of a single gate machine according to the acquired motion state parameters of the single gate machine; counting the number of point clouds of the obstacles in the protection area in real time, judging whether the number of point clouds of the obstacles is greater than a set threshold, and greater than the threshold, issuing an alarm and controlling the gate machine to stop running; acquiring motion state parameters of adjacent two gate machines, calculating the running track position of the arm frame in a future period of time, judging whether the arm frames of the adjacent two gate machines exist at the same time point in the period of time, and existing at the same time point, issuing an alarm and controlling the gate machine to stop running. The method can not only prevent the arm frame of the gate machine from colliding with surrounding obstacles, but also prevent the two gate machines from colliding, and improves the safety of gate machine operation.
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