Drowning identification method for anti-drowning necklace, computer program product and anti-drowning necklace

Abstract

The invention provides a drowning identification method for an anti-drowning necklace, a computer program product and the anti-drowning necklace, and the method comprises the following steps: receiving a starting signal, and controlling an air pressure sensor to start according to the starting signal to obtain pressure data in real time; according to the pressure data, the type of water sports performed by the user is judged, if it is judged that the user performs water sports, whether the change amplitude of the pressure data is smaller than a preset fluctuation amplitude or not is judged, and if not, a drowning signal is generated, and an air pump is controlled to inflate a compressed air bag; if it is judged that the user does the water entry movement, whether the pressure data change frequency is lower than the preset fluctuation frequency or not is judged, and if not, a drowning signal is generated, and the air pump is controlled to inflate the compressed air bag. In this way, the user can control the air pump to inflate the air bag without pressing the inflation button when drowning, the situation that the user is in an extremely nervous and panic state after drowning and cannot press the inflation button is avoided, and drowning accidents are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of drowning prevention equipment, and in particular to a drowning identification method for an anti-drowning collar, a computer program product and an anti-drowning collar. Background Art

[0002] With economic development, people's living standards have gradually improved, and the demand for water sports has also gradually increased. Drowning accidents are prone to occur during water sports. To avoid drowning, people usually wear life jackets or life buoys, but life jackets and life buoys are filled with air or filled with floating objects, which are large in size and will affect the wearer's water sports.

[0003] There is an anti-drowning collar with an airbag and an air pump built in it, and an inflation button is arranged on the periphery of the collar. When the user is doing water sports, the anti-drowning collar is worn on the neck. Under normal circumstances, the airbag shrinks in the collar and will not affect the user's water sports. When a drowning accident occurs, the user can press the inflation button to make the air pump built into the collar inflate the airbag. After the airbag is inflated, the collar will be opened and wrapped around the user's neck, lifting the user's head to float on the water surface to avoid drowning. However, after drowning, people are usually in a state of extreme tension and panic. In this state, they may not be able to press the inflation button, resulting in the failure of the airbag to inflate, and drowning accidents may still occur. Summary of the invention

[0004] The technical problem to be solved by the present invention is how to prevent the airbag from failing to inflate due to the user being unable to press the inflation button after drowning after wearing the anti-drowning collar.

[0005] In order to solve the above technical problems, the present invention provides a drowning identification method for an anti-drowning collar, comprising the following steps:

[0006] S1. Receive a start signal, and control the air pressure sensor to start acquiring pressure data in real time according to the start signal;

[0007] S2. judging the type of water sports performed by the user according to the pressure data obtained by the air pressure sensor within a preset time period after startup, wherein the water sports types include water sports and water sports. If it is judged that the user is performing water sports, executing step S3; if it is judged that the user is performing water sports, executing step S4;

[0008] S3. Determine whether the pressure data change amplitude obtained by the air pressure sensor in real time is less than the preset fluctuation amplitude. If the pressure data change amplitude is less than the preset fluctuation amplitude, keep obtaining the pressure data in real time through the air pressure sensor. If the pressure data change amplitude is not less than the preset fluctuation amplitude, generate a drowning signal and control the air pump to inflate the compressed air bag;

[0009] S4. Determine whether the frequency of change of the pressure data obtained by the air pressure sensor in real time is lower than the preset fluctuation frequency. If the frequency of change of the pressure data is lower than the preset fluctuation frequency, keep obtaining the pressure data in real time through the air pressure sensor. If the frequency of change of the pressure data is not lower than the preset fluctuation frequency, generate a drowning signal and control the air pump to inflate the compressed airbag.

[0010] Furthermore, the method further includes step S101 executed after step S1: determining whether an inflation signal is received; if an inflation signal is received, controlling the air pump to inflate the compressed airbag, and then not executing steps S2, S3 and S4.

[0011] Furthermore, in step S2, if the average value of the pressure data obtained by the air pressure sensor within the preset time period after startup is less than the pressure threshold, it is determined that the user is performing water sports; if the average value of the pressure data obtained by the air pressure sensor within the preset time period after startup is not less than the pressure threshold, it is determined that the user is performing water sports.

[0012] The present invention also provides a computer program product, comprising a computer program, which implements the steps of the drowning identification method described above when executed by a processor.

[0013] The present invention also provides an anti-drowning collar, which is characterized in that it includes a collar body, the collar body has a compressed air bag, an air pump and a controller built in, the air outlet of the air pump is connected to the compressed air bag, a power switch and an air pressure sensor are provided on the periphery of the collar body, and a closed seam that can be opened by the inflated compressed air bag is provided at the position corresponding to the compressed air bag, the power switch, the air pressure sensor and the air pump are electrically connected to the controller respectively, the controller includes a memory and a processor connected to each other, the memory stores the above-mentioned computer program product, in step S1, when the power switch is pressed, the controller receives a start signal, in steps S3 and S4, when the controller generates a drowning signal, the air pump is controlled to inflate the compressed air bag, and after the compressed air bag is inflated, the closed seam is opened and exposed on the periphery of the collar body.

[0014] Furthermore, an inflation button is provided on the periphery of the collar body, and the inflation button is electrically connected to the controller. When the inflation button is pressed, an inflation signal is input to the controller.

[0015] Furthermore, the power switch is arranged at the rear side of the collar body, and the air pressure sensor and the inflation button are arranged at the front side of the collar body.

[0016] The present invention has the following beneficial effects: after the anti-drowning collar is activated, pressure data is obtained in real time through the air pressure sensor, and the type of water sports performed by the user is determined based on the pressure data. In this way, the corresponding mode can be entered according to the type of water sports. In the mode corresponding to the water sports, if the pressure data changes by no less than the first fluctuation range, it means that the user falls into the water from the surface and drowns, resulting in a large change in the pressure data, so a drowning signal is generated and the air pump is controlled to inflate the airbag. In the mode corresponding to the water entry sports, if the pressure data changes by no less than the second fluctuation range, it means that the user struggles in the water and drowns, resulting in a large change in the pressure data, so a drowning signal is generated and the air pump is controlled to inflate the airbag. In this way, the user can control the air pump to inflate the airbag without pressing the inflation button when drowning, thereby avoiding the situation where the user is in an extremely nervous and panicked state after drowning and cannot press the inflation button, thereby reducing the occurrence of drowning accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a flow chart of a drowning identification method for an anti-drowning collar.

[0018] Figure 2 It is a schematic diagram of the front side of the anti-drowning collar.

[0019] Figure 3 This is a schematic diagram of the back side of an anti-drowning collar. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with specific implementation methods.

[0021] This embodiment provides an anti-drowning collar, such as Figure 2 and Figure 3 As shown, the anti-drowning collar includes a collar body 1, which is worn around the neck through the collar body 1. A power switch 2, an air pressure sensor 3 and an inflation button 5 are arranged on the periphery of the collar body 1, wherein the power switch 2 is arranged at the rear side of the collar body 1, and the air pressure sensor 3 and the inflation button 5 are arranged at the front side of the collar body 1.

[0022] The collar body 1 is built with a compressed air bag, an air pump and a controller, wherein the air outlet of the air pump is connected to the compressed air bag, the compressed air bag surrounds the collar body 1, and the collar body 1 is provided with a closed seam 4 which can be opened by the inflated compressed air bag at the position corresponding to the compressed air bag. The power switch 2, the air pressure sensor 3, the inflation button 5 and the air pump are electrically connected to the controller respectively, and the controller is specifically an MCU controller, which can receive a start signal and a shutdown signal from the power switch 2, can control the start of the air pressure sensor and receive pressure data detected by the air pressure sensor, can receive an inflation signal from the inflation button 5, and can generate a drowning signal and control the air pump to start inflating the compressed air bag. After the compressed air bag is inflated, it expands and opens the closed seam 4 to expose it outside the collar body 1.

[0023] The controller includes a memory and a processor connected to each other, wherein a computer program product is stored in the memory, and the computer program product includes a computer program, and when the computer program is executed by the processor, the following is realized: Figure 1 The drowning identification method for the anti-drowning collar shown includes the following steps S1, S101, S2, S3, and S4.

[0024] S1. Receive a start signal, and control the air pressure sensor to start acquiring pressure data in real time according to the start signal.

[0025] After putting on the anti-drowning collar, the user can press the power switch 2 on the periphery of the collar body 1 to send a start signal to the controller. After receiving the start signal, the controller controls the air pressure sensor 3 to start acquiring pressure data in real time according to the start signal.

[0026] S101. Determine whether an inflation signal is received. If an inflation signal is received, control the air pump to inflate the compressed airbag, and then do not execute steps S2, S3 and S4.

[0027] When the user is doing water sports, if drowning occurs, the user can directly press the inflation button 5 of the anti-drowning collar to inflate and save himself. Therefore, after starting, the controller determines whether it receives the inflation signal from the inflation button 5. If the inflation signal is received, it means that the user is drowning and presses the inflation button 5, so the air pump of the anti-drowning collar is controlled to inflate the compressed air bag, so that the air bag expands and opens the closed seam 4 to expose the collar body 1, and the user's head floats to the surface to avoid drowning accidents, and then steps S2, S3 and S4 are not executed. If the controller does not receive the inflation signal, it means that the user has not pressed the inflation button 5, but at this time it may be that the user is doing normal exercise, or it may be that the user cannot press the inflation button 5 due to nervousness and panic after drowning, so steps S2, S3, and S4 are executed to determine whether the user is drowning.

[0028] S2. Based on the pressure data obtained by the air pressure sensor within a preset time period after startup, determine the type of water sports performed by the user. Water sports types include water sports and underwater sports. If it is determined that the user is performing water sports, execute step S3; if it is determined that the user is performing underwater sports, execute step S4.

[0029] After the air pressure sensor 3 is started, the controller obtains the pressure data obtained by the air pressure sensor 3 within a preset time period after the start-up, for example, the pressure data obtained by the air pressure sensor 3 within 5 seconds after the start-up, and then determines the type of water sports performed by the user based on the pressure data obtained within the preset time period, and then enters the corresponding mode according to the type of water sports, where the water sports types include water sports and water sports. Water sports include boating, surfing, etc. When the user is performing water sports, the pressure data obtained by the air pressure sensor 3 is atmospheric pressure; water sports include swimming, diving, etc. When the user is performing water sports, the pressure data obtained by the air pressure sensor 3 is the water pressure plus the atmospheric pressure, so it is greater than the pressure data during water sports. It should be noted that the standard atmospheric pressure is 1.01325×10 5 Pa, and the underwater pressure data is the water pressure plus the atmospheric pressure, which is greater than the standard atmospheric pressure. Therefore, a pressure threshold slightly greater than the standard atmospheric pressure can be set. For example, the pressure threshold is set to 1.014×10 5 Pa, 1.015×10 5 Pa or 1.02×10 5 Pa. The specific method for determining the type of water sports is to first calculate the average value of the pressure data obtained by the air pressure sensor 3 within the preset time period after startup, and then compare the average value of the pressure data with the pressure threshold: if the average value of the pressure data obtained by the air pressure sensor 3 within the preset time period after startup is less than the pressure threshold, it means that the pressure data is atmospheric pressure, so it is determined that the user is doing water sports, and then step S3 is executed to enter the mode corresponding to water sports; if the average value of the pressure data obtained by the air pressure sensor 3 within the preset time period after startup is not less than the pressure threshold, it means that the pressure data is water pressure plus atmospheric pressure, so it is determined that the user is doing water sports, and then step S4 is executed to enter the mode corresponding to water sports.

[0030] S3. Determine whether the change amplitude of the pressure data obtained by the air pressure sensor in real time is less than the preset fluctuation amplitude. If the change amplitude of the pressure data is less than the preset fluctuation amplitude, keep obtaining the pressure data in real time through the air pressure sensor. If the pressure data change is not less than the first fluctuation range, generate a drowning signal and control the air pump to inflate the compressed airbag.

[0031] When the user is doing water sports normally, the pressure data obtained by the air pressure sensor 3 in real time is the atmospheric pressure. If the user falls into the water from above and drowns, the pressure data obtained by the air pressure sensor 3 becomes the atmospheric pressure plus the water pressure. Therefore, the pressure data changes greatly before and after falling into the water, that is, after the user falls into the water from above and drowns, the pressure data obtained by the air pressure sensor 3 in real time will have a large fluctuation range. Therefore, a preset fluctuation range can be set for the pressure data change, and the user can be judged whether he is drowning according to the preset fluctuation range. Specifically, in the mode corresponding to the water sports, the controller judges whether the pressure data change range obtained by the air pressure sensor 3 in real time is less than the preset fluctuation range. Set a fluctuation amplitude. If the pressure data change amplitude is less than the preset fluctuation amplitude, it means that the user is performing water sports normally. Therefore, the controller keeps obtaining pressure data in real time through the air pressure sensor 3. If the pressure data change amplitude is not less than the preset fluctuation amplitude, it means that the user falls into the water and drowns. Therefore, the controller generates a drowning signal and controls the air pump to inflate the compressed airbag, so that the airbag expands and opens the closing seam 4 to expose the collar body 1, and floats the user's head to the surface of the water. In this way, the user can control the air pump to inflate the airbag without pressing the inflation button 5 when drowning, avoiding the situation where the user is in an extremely nervous and panic state after drowning and cannot press the inflation button 5, thereby reducing the occurrence of drowning accidents.

[0032] S4. Determine whether the frequency of change of the pressure data obtained by the air pressure sensor in real time is lower than the preset fluctuation frequency. If the frequency of change of the pressure data is lower than the preset fluctuation frequency, keep obtaining the pressure data in real time through the air pressure sensor. If the frequency of change of the pressure data is not lower than the preset fluctuation frequency, generate a drowning signal and control the air pump to inflate the compressed airbag.

[0033] When the user is performing normal water exercise, the pressure data obtained by the air pressure sensor 3 in real time is the atmospheric pressure plus the water pressure. If the user struggles in the water and drowns, the pressure data obtained by the air pressure sensor 3 will change rapidly. Therefore, the pressure data change amplitude before and after falling into the water is small but the change frequency is high, that is, after the user struggles in the water and drowns, the pressure data change obtained by the air pressure sensor 3 in real time will have a high fluctuation frequency. Therefore, a preset fluctuation frequency can be set for the pressure data change, and the user is drowning can be judged according to the preset fluctuation frequency. Specifically, the controller determines whether the pressure data change frequency obtained by the air pressure sensor 3 in real time is low in the mode corresponding to the water exercise. At the preset fluctuation frequency, if the pressure data change frequency is lower than the preset fluctuation amplitude, it means that the user is performing normal water entry exercise, so the controller keeps obtaining pressure data in real time through the air pressure sensor 3. If the pressure data change frequency is not lower than the preset fluctuation frequency, it means that the user is struggling in the water and drowning, so the controller generates a drowning signal and controls the air pump to inflate the compressed airbag, so that the airbag expands and opens the closing seam 4 to expose the collar body 1, and floats the user's head to the surface of the water. In this way, the user can control the air pump to inflate the airbag without pressing the inflation button 5 when drowning, avoiding the situation where the user is in an extremely nervous and panic state after drowning and cannot press the inflation button 5, thereby reducing the occurrence of drowning accidents.

[0034] The above is only an implementation method of the invention, and does not limit the scope of patent protection. Those skilled in the art can make non-substantial changes or substitutions based on the invention, which still fall within the scope of patent protection.

Claims

1. A drowning identification method for an anti-drowning collar, characterized in that: The steps include: S1. Receive a start signal, and control the air pressure sensor to start acquiring pressure data in real time according to the start signal; S2. judging the type of water sports performed by the user according to the pressure data obtained by the air pressure sensor within a preset time period after startup, wherein the water sports types include water sports and water sports. If it is judged that the user is performing water sports, executing step S3; if it is judged that the user is performing water sports, executing step S4; S3. Determine whether the pressure data change amplitude obtained by the air pressure sensor in real time is less than the preset fluctuation amplitude. If the pressure data change amplitude is less than the preset fluctuation amplitude, keep obtaining the pressure data in real time through the air pressure sensor. If the pressure data change amplitude is not less than the preset fluctuation amplitude, generate a drowning signal and control the air pump to inflate the compressed air bag; S4. Determine whether the frequency of change of the pressure data obtained by the air pressure sensor in real time is lower than the preset fluctuation frequency. If the frequency of change of the pressure data is lower than the preset fluctuation frequency, keep obtaining the pressure data in real time through the air pressure sensor. If the frequency of change of the pressure data is not lower than the preset fluctuation frequency, generate a drowning signal and control the air pump to inflate the compressed airbag.

2. The drowning identification method according to claim 1, characterized in that: The method further includes step S101 executed after step S1 to determine whether an inflation signal is received. If an inflation signal is received, the air pump is controlled to inflate the compressed air bag, and then steps S2, S3 and S4 are not executed.

3. The drowning identification method according to claim 1, characterized in that: In step S2, if the average value of the pressure data obtained by the air pressure sensor within the preset time period after startup is less than the pressure threshold, it is determined that the user is performing water sports; if the average value of the pressure data obtained by the air pressure sensor within the preset time period after startup is not less than the pressure threshold, it is determined that the user is performing water sports.

4. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the drowning identification method according to any one of claims 1 to 3 are implemented.

5. An anti-drowning collar, characterized in that: The collar body (1) comprises a compressed air bag, an air pump and a controller built therein, the air outlet of the air pump being connected to the compressed air bag, a power switch (2) and an air pressure sensor (3) being arranged on the periphery of the collar body (1), and a closed seam (4) which can be opened by the inflated compressed air bag being arranged at a position corresponding to the compressed air bag, the power switch (2), the air pressure sensor (3) and the air pump being electrically connected to the controller respectively, the controller comprising a memory and a processor connected to each other, the memory storing the computer program product according to claim 4, in step S1, when the power switch (2) is pressed, the controller receives a start signal, in steps S3 and S4, when the controller generates a drowning signal, the air pump is controlled to inflate the compressed air bag, and after the compressed air bag is inflated, the closed seam (4) is opened and exposed on the periphery of the collar body (1).

6. The anti-drowning collar according to claim 5, characterized in that: An inflation button (5) is arranged on the periphery of the collar body (1), and the inflation button (5) is electrically connected to the controller. When the inflation button (5) is pressed, an inflation signal is input to the controller.

7. The anti-drowning collar according to claim 6, characterized in that: The power switch (2) is arranged at the rear side of the collar body (1), and the air pressure sensor (3) and the inflation button (5) are arranged at the front side of the collar body (1).

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