Offshore platform crane heave compensation control system test bench based on video distance measurement

Abstract

The invention discloses a test stand for a video-ranging offshore platform crane heave compensation control system. The test stand comprises a hydraulic oil source, a hydraulic control valve, a control handle, a hydraulic winch, a direct-pump-controlled electrical-hydraulic heave compensation device, a control computer, an industrial camera, a rack, an analog load, a six-degree-of-freedom platform, a power distribution control cabinet and a tension sensor. By using the test stand, the video-ranging offshore platform crane heave compensation control system can be conveniently tested, the operation process of a conventional offshore platform crane can be simulated and tested, the control performance of a machine-vision offshore platform crane heave compensation motion control system can be judged through detecting the tension of a steel wire rope, and the control strategy research of the machine-vision offshore platform crane heave compensation motion control system can be carried out through comparing with the conventional offshore platform crane; and the test stand is compact in structure, convenient to use and wide in practicability.

Description

technical field [0001] The invention relates to a crane heave compensation control system and method, in particular to a test bench for a heave compensation control system of an ocean platform crane with video distance measurement. technical background [0002] Since the 21st century, the world's demand for energy has increased day by day, and the ocean has become the focus of the energy strategies of various countries in the new century. Countries all over the world have increased their efforts in ocean development. With the massive development of offshore oil, large-scale offshore projects are also booming, and offshore cranes are one of the key equipment in these projects. [0003] The heave and swing of the hull caused by the wave movement greatly limits the operating capacity of the offshore crane. It will cause equipment damage and personal injury or death. The biggest technical difference between offshore cranes and ground cranes is to eliminate the impact of wave m...

AI Technical Summary

Problems solved by technology

[0006] At present, for the offshore platform cranes of international and domestic manufacturers, the measure to solve the wave motion is still to configure the constant tension function. The heave compensation technology is not used on a large scale due to the inconvenience of detecting the hull motion under the conditions of the offshore platform cranes, but in fact it is suitable for offshore platforms. For cranes, whether it is the constant tension technology or the existing heave compensation technology, the lifting process of the offshore platform crane can only be unaffected by the heave of the hull, while the falling process is still affected by the movement of the hull. The complete operation of the crane includes lifting and delegating two processes, so existing technology only solves half of the problem

[0007] In summary, it is inappropriate to directly transfer the existing unit technology to offshore platform cranes

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