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A kind of detection method and detection system of vertical ladder bouncing

A detection method, the technology of straight elevators, applied in elevators, complex mathematical operations, transportation and packaging, etc., can solve the problems of inaccurate detection of passenger jumping behavior, achieve the effect of secondary confirmation, ensure accuracy, and improve detection efficiency

Active Publication Date: 2021-01-15
ZHEJIANG NEW ZAILING TECH CO LTD
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Problems solved by technology

[0005] The purpose of the present invention is to provide a detection method and detection system for straight ladder jumping, which solves the problem of inaccurate detection of passenger jumping behavior in straight ladders

Method used

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  • A kind of detection method and detection system of vertical ladder bouncing
  • A kind of detection method and detection system of vertical ladder bouncing
  • A kind of detection method and detection system of vertical ladder bouncing

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Embodiment approach

[0050] combine figure 1 with figure 2 As shown, according to an embodiment of the present invention, a kind of vertical ladder bouncing detection method of the present invention comprises:

[0051] S1. Obtain the resultant acceleration of the straight ladder along the direction of gravity, and obtain the sum of the squares of the resultant acceleration of the straight ladder based on the resultant acceleration;

[0052]S2. Count the zero-crossing times of the zero-crossing points when the positive and negative changes of the adjacent combined accelerations are performed in chronological order;

[0053] S3. Comparing the sum of the squares of the combined acceleration with the first threshold, and comparing the number of zero crossings with the second threshold, if the sum of the squares of the combined acceleration is greater than the first threshold and the number of zero crossings is smaller than the second threshold, a bouncing alarm is issued.

[0054] combine figure 1...

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Abstract

The invention relates to a vertical elevator jumping detection method and detection system. The method comprises the steps that 1, resultant accelerations of a vertical elevator in the gravity direction are obtained, and a resultant acceleration energy value of the vertical elevator is obtained on the basis of the resultant accelerations; 2, statistics is carried out on the number of times of zeropoint crossing during positive and negative change of the adjacent resultant accelerations according to the time order; 3, the resultant acceleration energy value is compared with a first threshold value, the number of times of zero point crossing is compared with a second threshold value, and if the resultant acceleration energy value is larger than the first threshold value and smaller than thesecond threshold value, an alarm about jumping is given; 4, video images in the vertical elevator before the moment for giving the alarm about jumping are collected every preset time; and 5, the video images are judged on the basis of depth learning, whether passengers jump in the vertical elevator or not is confirmed, and if jumping exists, prompt is given. According to the method, by obtainingthe acceleration of the vertical elevator and carrying out real-time analyzing, then jumping of the passengers can be detected more rapidly, report missing is reduced beneficially, early warning is given in time beneficially, depth learning is used for judging videos again, and thus accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of elevator safety, in particular to a method and system for detecting jumping of straight elevators. Background technique [0002] Straight ladders are widely used vertical means of transportation in people's lives, and their safety is related to the safety of people's lives and property. A large number of elevator accident analysis statistics have shown that there is a direct relationship between improper behavior and elevator accidents. [0003] At present, elevators are used in residential areas, office buildings, hotels, shopping malls and other places with dense traffic. While elevators bring great convenience to people, they also cause loss of life and property due to improper use. For example, if someone is jumping in the elevator, if the reminder voice prompt or dissuasion is not played in time, the elevator will be damaged, the elevator safety protection device will be triggered and the elevator w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/00G06F17/15
CPCB66B5/0012G06F17/15
Inventor 毕举施行王超蔡巍伟吴磊磊
Owner ZHEJIANG NEW ZAILING TECH CO LTD
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