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Analysis method and analysis system for monitoring video of elevator running cable

A technology for monitoring video and elevator operation, applied in the field of Internet of Things, can solve the problems of lack of lubrication, deformation and wear, and interference of steel wire ropes, and achieve the effects of good image processing effect, stable working performance and small data processing capacity.

Inactive Publication Date: 2013-04-03
ZHEJIANG ZHONGBO INFORMATION ENG
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Problems solved by technology

② Deformation wear: This situation refers to the local wear of the elevator wire rope. Although the diameter of the wire rope, that is, the cross-sectional area has not decreased, the single-strand steel wire of the wire rope is also prone to breakage due to changes in the material of the wire rope.
④Lack of lubrication in the steel wire rope: This item is another reason for the breakage of the steel wire rope. Because the unique steel wire rope runs for a long time, the lack of lubrication can easily cause the oil-deficient state of the oil-containing rope inside the steel wire rope to occur, causing the pressure loss of the steel wire rope to increase the local temperature.
This solution has improved the safety of elevator operation to a certain extent, but there are still poor detection results, and it is difficult to find hidden troubles in time. The above work failures cannot be intelligently judged and analyzed, and cannot be shared with more users. The detection environment, especially the light environment, has high requirements and is prone to technical problems such as interference

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  • Analysis method and analysis system for monitoring video of elevator running cable

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Embodiment Construction

[0026] The monitoring video analysis method of the elevator running cable includes the following steps:

[0027] A. Video signal collection: real-time collection of video signals of dynamic and / or static steel cables in a vertical state, and the video signal collection direction is horizontal;

[0028] B. Low-level preprocessing: Use the method of dividing rectangular areas to perform low-level preprocessing on the collected video signal, filter out unnecessary pixels, and obtain a two-dimensional element map;

[0029] C. Intermediate processing: Convert the steel cables in the two-dimensional element map into a 2.5-dimensional description of the basic pixel map;

[0030] D. Analysis result: Perform video analysis on the basic pixel image, and compare the analysis result with the pre-stored threshold. If the threshold is not exceeded, no warning signal is output; if the threshold is exceeded, an early warning signal is output.

[0031] In the above step B, the two-dimensional element ma...

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Abstract

The invention belongs to the technical field of the Internet of Things and relates to an analysis method and an analysis system for a monitoring video of an elevator running cable. The technical problems, such as unreasonable design, in the prior art, are solved. The analysis method comprises the following steps: A) collecting video signals; B) performing low-level pretreatment; C) performing intermediate treatment; and D) analyzing a result. The analysis system comprises a video analysis camera which is fixed at the top of an elevator cage and is located on one side of a cable coiling and uncoiling mechanism, wherein a first radio signal communication module is connected with the video analysis camera; the first radio signal communication module is capable of exchanging data with a remote second radio signal communication module; and the second radio signal communication module is connected with a video analysis server. Compared with the prior art, the analysis method and the analysis system for the monitoring video of the elevator running cable have the advantages of: good image processing effect, small data handling capacity, capability of effectively increasing the elevator running safety, reasonable design, simple structure and stable working property.

Description

Technical field [0001] The invention belongs to the technical field of the Internet of Things, and relates to intelligent safety detection, in particular to a video analysis method and analysis system for monitoring elevator running steel cables. Background technique [0002] Elevators are commonly used equipment in high-rise buildings. The maintenance and use of elevators is also a very important part. With reference to the relevant documents and regulatory requirements of the Ministry of Industry and Information Technology, the Development and Reform Commission of the State Council, the Ministry of Construction, etc., the "strengthening operation supervision and management mode" will be gradually adopted and the existing Elevators are networked for unified supervision and management, targeted to strengthen early warning and forecast of existing elevator operation accidents, increase measures to improve existing elevator operation modes, and resolutely prevent and reduce the occu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/02
Inventor 陈建江
Owner ZHEJIANG ZHONGBO INFORMATION ENG