Positioning method of twin-lift spreader bridge crane based on image sensor

An image sensor and positioning method technology, which is applied in the directions of load hanging components, transportation and packaging, can solve the problems of complex use, poor anti-interference ability, inconvenient maintenance, etc., and achieves simple structure, convenient use, practical and effective effects.
CN101934982BInactive Publication Date: 2012-05-23SHANGHAI MARITIME UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI MARITIME UNIVERSITY
Publication Date
2012-05-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a positioning method of twin-lift spreader bridge crane based on an image sensor. Index points (16) and (17) are arranged on a twin-lift spreader, two independent video cameras (7) and (8) are used for respectively shooting swinging images of the twin-lift spreader, and video frames are transmitted to video image processors (9) and (10) corresponding to the video cameras;each video image processor comprises a CPU (Central Processing Unit), a video processing module, a memory, an I / O (Input / Output) unit, and the like, wherein the input end of each video image processor is connected with each video camera, and the output end of each video image processor is connected with a control computer (11); and swing-angle information and sling-length information of the twin-lift spreader are calculated through an image-position processing algorithm and an image-depth restoring algorithm and are transmitted to the control computer in real time in order to complete the anti-swing positioning control of a current control period. The positioning method is simple, has the advantages of low cost and convenient use and not only is used for the information feedback of a swing angle and a sling length of an anti-swing positioning control system of the twin-lift spreader bridge crane, but also is used for the hand operation reference of a crane driver.
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Description

technical field

[0001] The invention relates to the technical fields of information technology and bridge crane loading and unloading, in particular to a positioning detection method for a bridge crane with double spreaders. Background technique

[0002] Double-lift double-sling bridge crane (including field crane and quay crane) is a new type of port container handling machinery. Because it has two lifting spreaders, it can work at the same time, thus greatly improving the efficiency of container loading and unloading. However, this double-lifting double-slinger bridge crane system has a complex structure and various working methods; since this new type of bridge crane has two spreaders that can be lifted independently, it brings great difficulty to the detection of the swing angle of the spreader.

[0003] Existing bridge crane detection devices are all designed for single-sling bridge cranes, and they all use relatively complicated detection instruments for the detection ...

Claims

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