Swimming pool drowning monitoring and detection method

Abstract

The invention belongs to the technical field of video monitoring, and relates to a swimming pool drowning monitoring and detection method by using a camera to detect a drowning behavior possibly happening in the swimming pool. The method is realized in a monitoring and detection device which is composed of a computer processing system, a camera, a polarizer, a posture detector, a caller, an LED monitor, a signal receiver and a waterproof cable. The method mainly comprises the following steps of detection system starting, target matching monitoring, foreground detection, target tracking, targettracking and positioning, drowning judgment and drowning alarming. Timely processing can be carried out according to the information photographed by the camera, a drowning situation is analyzed, processing and alarming are carried out, the device cost is low, mounting and maintenance are easy, the system is safe and high-efficiency, the positioning is accurate, the calculation is scientific, drowning pre-judgment and alarming can be carried out in all directions and at multiple angles, the error rate is low, a life can be saved at a first time, and the safety of the swimming pool is greatly enhanced.

Description

Technical field: [0001] The invention belongs to the technical field of video monitoring, and relates to a process method for monitoring and detecting possible drowning behaviors in swimming by using a video camera, in particular to a method for monitoring and detecting drowning in swimming pools. Background technique: [0002] At present, beginners in indoor swimming pools often lose their balance and choke in the water because they are not familiar with the nature of water, which may cause drowning accidents. There is also a high risk of drowning. Most of the detection systems in domestic swimming pools rely on ambulance personnel to judge whether drowning has occurred. Due to the limited observation range of the human eye, it is not easy to realize the occurrence of dangerous situations, resulting in frequent drowning accidents. The probabilities of drowning accidents occurring in day and night are similar. In the opening of the night market, there is a phenomenon that ...

AI Technical Summary

Problems solved by technology

In the opening of the night market, there is a phenomenon that the lighting brightness does not meet the national standard (the illuminance of the water surface should not be lower than 80 lux, and emergency lighting is equipped), which affects the observation range of lifeguards and reduces the monitoring of swimmers. security

[0003] At present, the following methods are commonly used for drowning alarm: (1) Lifeguard monitoring: lifeguard scans the swimmers in the area of ​​responsibility on the swimming pool observation chair or monitors the condition of the entire swimming pool through the water camera. Launching rescue, this method is low in cost and widely used, but lifeguards need to maintain a high degree of concentration and endure long-term mental stress, which is prone to work fatigue, and it is difficult for lifeguards to observe the situation in deep water, and the monitoring efficiency is low. It is difficult to find the drowning person at the first time and start rescue; (2) the detector carried by the swimmer: let the swimmer carry certain monitoring devices when swimming, such as similar belts, collars, etc., such as disclosed in Chinese patent 201620010416.6 A swimming pool anti-drowning safety system, including a waterproof wristband and a monitoring system. If the position of the swimmer is lower than the set safe depth, or exceeds a certain set time, the monitoring device will give a warning. In addition, some monitors The device uses a microphone system to monitor the swimmer's heartbeat and breathing sound, and further measures the interval between the disappearance and appearance of these sounds, so as to determine whether the swimmer is drowning. Due to the high false alarm rate, it brings inconvenience to swimmers, and the system is installed and used and maintenance cost a lot, so it has not been widely popularized and put into use; (3) Simple camera monitoring and alarm system: place the camera at the bottom of the swimming pool or install it on the four walls of the pool, and the computer simply processes and calculates the video to judge Whether drowning occurs, the cost is low. For example, a swimming pool anti-drowning warning system based on a camera network disclosed in Chinese Patent No. 201120080648.6. The disadvantages of this system are: the calculation method is not scientific and rigorous enough, and the false alarm rate is high. Rescue, which delays the best rescue time

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