Visual cable detection device with adjustable detection space closed shooting distance

Abstract

The invention relates to the technical field of cable detection, in particular to a visual cable detection device with an adjustable detection space closed shooting distance, which comprises two symmetrical systems, namely a left side system and a right side system; wherein the left side system is provided with an upper rotary opening and closing system and a lower rotary opening and closing system; a distance-adjustable shooting system is arranged between the upper rotary opening and closing system and the lower rotary opening and closing system, pressing mechanisms are arranged between the shooting system and the upper rotary opening and closing system and between the shooting system and the lower rotary opening and closing system respectively, shading structures are arranged on the outer sides of the symmetrical systems, and connecting structures are arranged on the upper sides and the lower sides of the symmetrical systems. The device is built mostly with bolt connection, so that the structure is simple, maintenance is convenient, the production and manufacturing cost is low, and good economic benefits can be brought; the bolts are rigidly connected with the set screws and thelike, so that the stability of the detection device in the detection process is ensured, and the external interference resistance of the detection device is improved.

Description

technical field [0001] The invention relates to the technical field of cable detection, in particular to a visual cable detection device with adjustable shooting distance in a closed detection space. Background technique [0002] Cable-stayed bridges are more and more used in transportation because of their beautiful appearance, low cost and good earthquake resistance. The cable is one of the main stress components of the cable-stayed bridge and the lifeline of the whole bridge. However, due to the long-term exposure of the cable to the air, the impact of wind, sun, and rain erosion, the surface protective layer of the cable and even the steel wire inside the cable will be damaged to varying degrees. When it is serious, it will directly affect the normal use of the bridge and endanger the safety of people's lives and property. In order to monitor the state of the cable, detect damage as early as possible, intervene in time, reduce maintenance costs, and avoid more serious ...

AI Technical Summary

Problems solved by technology

[0003] Videos and images acquired by common bridge cable detection devices are difficult to meet the needs of post-processing

The combination of image acquisition and post-processing is not fully considered. The background of the captured video image is complex, and there may be some light problems due to sunlight and other reasons during the shooting process. Moreover, because the image acquisition device is integrated with the cable climbing device, the video captured by the camera is often affected. Vibration caused by motor vibration

These all add unnecessary burdens and influences of unknown factors to image processing operations such as cable surface area extraction, multi-channel video stitching, and defect location measurement in the later stage, making it difficult to propose a post-processing algorithm with strong applicability, and it is difficult to promote the development of bridge cables. Intelligent detection process

In addition, the current cable detection device mainly relies on the automatic zoom of the camera for cables of different diameters, and the effective detection range of the cable diameter is small

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