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Swimming pool drowning alarm method and device

An alarm and swimming pool technology, applied in the fields of video surveillance and computer vision, can solve the problems of inaccurate judgment of active drowning behavior, high risk, and difficulty in taking underwater pictures.

Inactive Publication Date: 2021-02-02
深圳市云网万店科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are mainly three ways to realize the common swimming pool drowning monitoring and alarm system: (1) swimmers wear terminal detection equipment (such as bracelets, etc.), which will bring inconvenience to swimmers and the accuracy rate is not high; ( 2) Sonar detection, this method requires high voltage support, which is dangerous and prone to misjudgment; (3) Video-based detection system, this method is more popular
[0003] In the video-based monitoring method: the single-surface camera is limited by light and water quality, and it is difficult to capture a clear underwater picture, which leads to the following two problems: (1) it is difficult to accurately detect underwater swimmers (such as diving) (2) Since it is difficult to judge the underwater treading action, the judgment of active drowning behavior is inaccurate
However, a single underwater camera can only collect underwater images, which will lead to the following two problems: (1) it is difficult to detect the passive drowning behavior of swimmers on the water surface; Not drowning is not accurate (if the swimmer's head is also underwater, it may be the late stage of active drowning, nothing abnormal and fast treading water)
[0004] Of course, there are also surface and underwater camera linkage schemes, but in the current surface and underwater camera linkage scheme, by detecting swimmers on the water surface, it is judged whether it is suspected of drowning according to the change in the shape of the water splash. Suspected drowning, and then drive the underwater camera to point to the target through the traditional method of feature extraction for detection, but this method cannot promptly perform drowning judgments and trigger alarms for sudden passive drowning behaviors that are calm or even unable to arouse water splashes, and drowning behavior analysis Incomplete, low alert accuracy

Method used

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  • Swimming pool drowning alarm method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Embodiment 1: This embodiment provides a swimming pool drowning alarm method, refer to figure 1 As shown, the method includes:

[0059] S1-1. The first monitoring device obtains the first state of the target swimmer based on the captured real-time image.

[0060] The first state is not drowning or drowning or suspected drowning.

[0061] Specifically, in this embodiment, the first state is the state of the water surface, and the state of the water surface is generated by the first monitoring device based on the captured real-time images to obtain the target swimmer's water surface attitude, real-time acceleration of the water surface, and the degree of danger in the area. The real-time image captured by the first monitoring device at least includes a target image frame and a preset number of adjacent frames of the target image frame.

[0062] As a preference, in this embodiment, the first monitoring device includes a first camera and a video processing chip built in t...

Embodiment 2

[0109] Embodiment 2: This embodiment provides a swimming pool drowning alarm method, refer to figure 2 As shown, the method includes:

[0110] S2-1. The first monitoring device obtains the first state of the target swimmer based on the captured real-time image. The first state is not drowning or drowning or suspected drowning.

[0111] Specifically, in this embodiment, the first state is the underwater state, and the underwater state is obtained by the first monitoring device based on the captured real-time images of the target swimmer's underwater posture, underwater real-time speed, and underwater real-time acceleration. and the degree of motion change is generated. The real-time image captured by the first monitoring device at least includes a target image frame and a preset number of adjacent frames of the target image frame.

[0112] As a preference, in this embodiment, the first monitoring device includes a first camera and a video processing chip built in the first ...

Embodiment 3

[0166]Embodiment 3: This embodiment provides a kind of swimming pool drowning warning device, and this device comprises:

[0167] The photographing module 31 is used for photographing real-time images.

[0168] The receiving module 32 is configured to receive the second state transmitted by the second monitoring device; the second state is obtained by the second monitoring device based on the real-time image analysis captured by the second monitoring device, and the second state is not drowning or drowning or suspected drowning .

[0169] The processing module 33 is used to obtain the first state of the target swimmer based on the captured real-time image and generate the current state of the target swimmer based on the first state and the second state; the first state is not drowning or drowning or suspected drowning .

[0170] An alarm module 34, configured to trigger a corresponding alarm strategy based on the current state of the target swimmer and the alarm triggering c...

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PUM

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Abstract

The invention discloses a swimming pool drowning alarm method and device. The method comprises the following steps: enabling a first monitoring device to obtain a first state of a target swimmer basedon a shot real-time image; when the first state is suspected to be drowning, receiving a second state of the target swimmer transmitted by a second monitoring device, wherein the second state is obtained by analyzing a shot real-time image by the second monitoring device, and the first state and the second state are one of non-drowning, drowning or suspected drowning; generating a current state of the target swimmer based on the first state and the second state; and triggering a corresponding alarm strategy based on the current state of the target swimmer and a preset alarm triggering condition, wherein the first state and the second state are respectively one of a water surface state and an underwater state and are different, the water surface state is generated by obtaining a water surface attitude, a water surface real-time acceleration and a danger degree of a region based on the real-time image, and the underwater state is generated by obtaining an underwater attitude, an underwater real-time speed, an underwater real-time acceleration and an action change degree based on the real-time image.

Description

technical field [0001] The invention relates to the fields of video monitoring and computer vision, in particular to a swimming pool drowning alarm method and device. Background technique [0002] Swimming, as a whole-body exercise, has been favored by more and more people in recent years. However, swimming pool drowning incidents also occur from time to time. Drowning behavior can be divided into two categories: active drowning and passive drowning. The main feature of active drowning is a nearly upright body posture, in addition, it may be accompanied by abnormal and rapid water treading movements; passive drowning is often caused by sudden physical abnormalities (such as cramps, myocardial infarction, etc.), mainly manifested as The sudden disappearance of swimming movements, swimmers generally have no obvious struggling movements, and such drowning people need more rapid rescue. At present, there are mainly three ways to realize the common swimming pool drowning monito...

Claims

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Application Information

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IPC IPC(8): G08B21/08H04N7/18G06K9/00
CPCG08B21/08H04N7/181G06V20/52
Inventor 荆伟丁一军贺稳定杨现许立群
Owner 深圳市云网万店科技有限公司