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Method for monitoring movement amount of steel wire rope in elevator braking process

A technology of elevator brakes and steel wire ropes, applied in the direction of elevators, transportation and packaging, etc.

Active Publication Date: 2021-02-26
SHANGHAI INST OF SPECIAL EQUIP INSPECTION & TECHN RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this method is not suitable for long-term monitoring of wire rope movement

Method used

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  • Method for monitoring movement amount of steel wire rope in elevator braking process
  • Method for monitoring movement amount of steel wire rope in elevator braking process
  • Method for monitoring movement amount of steel wire rope in elevator braking process

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Embodiment Construction

[0056] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0057] The method for monitoring the moving amount of elevator wire ropes based on image recognition provided by the present invention inputs high frame rate videos collected by industrial cameras (hereinafter referred to as "cameras"). Since the texture change cycle of steel wire ropes is short, a high frame rate video must be used. Only a camera with a short exposure time can completely capture a texture change cycle. In ...

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Abstract

The invention provides a method for monitoring the movement amount of a steel wire rope in the elevator braking process. The method is characterized by comprising the following steps that an industrial camera is used for shooting a traction steel wire rope set in the braking process, shot images are transmitted into a computer, the computer calculates the movement amount of the traction steel wirerope through an image recognition algorithm, and the result is displayed on a display equipment. According to the method, non-contact measurement is realized, a measurement device does not influencethe performance of a brake, a traction brake device does not need to be modified, a measured object can be found out according to the images, the requirement on the installation precision is lowered,the influence of environmental change on a detection system is also reduced, and the task of monitoring the movement of the steel wire rope for a long time can be completed.

Description

technical field [0001] The invention relates to a wire rope moving amount monitoring of an elevator traction braking device, and belongs to the technical field of elevator detection. Background technique [0002] During the use of the elevator, the wire rope wound on the traction sheave is constantly rubbing against the traction sheave groove. For the old elevator traction sheave, the groove of the sheave will gradually wear out, the friction between the traction sheave and the wire rope will decrease, and the traction capacity will decrease. When the traction capacity is reduced to a certain level, the traction sheave and the steel wire rope will slip, and the elevator car cannot be driven normally. If slip occurs during operation, a safety accident will occur. In addition, the brake shoe rubs against the brake wheel every time it brakes, causing the brake shoe to wear, resulting in a decrease in braking ability, slipping of the brake wheel, and safety accidents. [0003]...

Claims

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Application Information

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IPC IPC(8): B66B7/12
CPCB66B7/1223
Inventor 冯双昌常晓清欧阳惠卿陈杰方良
Owner SHANGHAI INST OF SPECIAL EQUIP INSPECTION & TECHN RES
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