The invention discloses a method for preventing a truck head from being smashed during container placing. A device using the method comprises a camera arranged on a gantry crane and a set of range finders arranged on a lifting appliance. The camera can shoot the number of a truck below the gantry crane and judge whether the truck stops within a specified range or not, then a container is clamped by the lifting appliance to move downwards, the range finders can move up and down along with the lifting appliance, the distance between the container and the ground is continuously measured in the moving process, and the situation that the container has enough safe braking distance is guaranteed; and if measured values of the range finders on two sides are different, timely parking is needed. Themethod has beneficial effects that the method employs a machine vision technology combining the camera and the range finders, the specific parking position of the truck is precisely recognized through the photographing of the camera, a high-precision coordinate model is built, the machine vision technology can achieve stopping at any time and timely correction compared with roughness and danger of conventional human eye range finding, and an accident that the truck head is smashed is effectively prevented, and the situation that the container is placed out of position in windy weather is improved.

    本发明公开了一种集装箱放箱时防砸卡车头的方法,包括设于龙门吊上的摄像头和设于吊具上的一组测距仪。所述摄像头可拍摄龙门吊下方卡车编号,并判断卡车是否停在规定范围内,然后通过吊具夹持集装箱向下移动,所述测距仪可随吊具上下移动,移动过程持续测量集装箱距离地面距离,保证集装箱有足够的安全刹车距离,若两侧测距仪测量值不同需要及时停车。本发明的有益效果是:采用了摄像头与测距仪组合的机器视觉技术,通过摄像头拍摄精准识别卡车停放的具体位置,建立高精度的坐标模型,相比较传统的人眼测距的粗糙和危险性,机器视觉技术能够实现随时停止及时修正,有效防止卡车头被砸事故的发生及改善大风天气的放箱偏移的情况。


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    Title :

    Method for preventing truck head from being smashed during container placing


    Additional title:

    一种集装箱放箱时防砸卡车头的方法


    Contributors:
    LIU DA (author) / BAI JINGTAO (author) / HUANG LIANGFENG (author) / BAO SHIJIE (author) / QIN WEI (author) / HUA QIAO (author) / LI YISHENG (author)

    Publication date :

    2021-01-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES




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