Elevator hand-pinch preventing method

Abstract

The invention discloses an elevator hand-pinch preventing method. The elevator hand-pinch preventing method comprises the following steps that S1, a camera obtains video images; S2, the video images are pretreated to obtain target area images of an elevator door; S3, the target area images are input into a hand-pinch preventing model, and through learning, a predicting result having the hand or having no hand is obtained; and S4, a corresponding action is conducted according to the predicting result. According to the elevator hand-pinch preventing method, by shooting the video images, having the hand or having no hand is predicted on the images on the edge of the elevator door, thus existence of small objects at the edge of the elevator door is judged, and the probability of accidents is lowered.

Description

technical field [0001] The invention relates to the technical field of elevator control, in particular to an elevator hand-pinch prevention method. Background technique [0002] At present, the detection of obstacles at the elevator door adopts the method of infrared light curtain. The infrared emitting tube and the infrared receiving tube are installed equidistantly on the side of the elevator door. During the process of opening and closing the door, if the infrared receiving tube cannot receive the infrared signal , it means that there is an obstacle. If you encounter a transparent object, you cannot detect it. For smaller objects, such as a dog leash, a child's small hand, or a part of an adult's hand, there is a high probability that it will not be detected, and the detection effect is very good. If the puppy is outside, the owner enters the elevator, and the elevator door closes, resulting in a safety accident. If a child's small hand or a part of an adult's hand is on...

AI Technical Summary

Problems solved by technology

[0002] At present, the detection of obstacles at the elevator door adopts the method of infrared light curtain. The infrared emitting tube and the infrared receiving tube are installed equidistantly on the side of the elevator door. During the process of opening and closing the door, if the infrared receiving tube cannot receive the infrared signal , it means that there is an obstacle. If you encounter a transparent object, you cannot detect it. For smaller objects, such as a dog leash, a child's small hand, or a part of an adult's hand, there is a high probability that it will not be detected, and the detection effect is very good. Poor, the dog is outside, the owner enters the elevator, and the elevator door closes, resulting in a safety accident

If a child's small hand or a part of an adult's hand is on the edge of the elevator door, but the elevator does not detect it, a hand pinching accident will occur when the elevator door is closed

[0003] Furthermore, the light curtain has the same length as the elevator door height, the installation process is cumbersome, and the installation and transportation efficiency is low

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