Neck ring for dry drowning detection and dry drowning detection method

Abstract

The invention relates to the field of vital sign monitoring, in particular to a neck ring for dry drowning detection and a dry drowning detection method.The neck ring for dry drowning detection comprises a shell (1), a detection device (2) and an alarm device (3) are arranged in the shell (1), when the detection device (2) detects dry drowning, the alarm device (3) starts to give an alarm, and when the detection device (2) detects the dry drowning, the alarm device (3) gives an alarm. According to the invention, the body state of a wearer can be monitored in real time, the dry drowning situation can be found and alarmed in time when occurring, and meanwhile, the structure is simple and light, the behavior movement of the wearer cannot be interfered during use, the wearing and dismounting are convenient, the long-term wearing is beneficial to the body health, and the device is suitable for large-scale popularization.

Description

Technical Field

[0001] The present invention relates to the field of life feature monitoring, and in particular to a neck ring for dry drowning detection and a dry drowning detection method. Background Art

[0002] Dry drowning, as a relatively rare form of drowning, refers to the phenomenon of suffocation caused by laryngeal spasm leading to airway occlusion after swimming or contact with water. Although dry drowning is less common than wet drowning (i.e. drowning caused by a large amount of water entering the lungs), its potential danger cannot be ignored, especially for children who cannot swim or have poor swimming skills.

[0003] Unlike wet drowning, the symptoms of dry drowning are hidden and not easy to be discovered. Most of the abnormal symptoms, such as dry and sore throat, cough, difficulty breathing, fatigue, and drowsiness, will only appear after swimming. It is extremely dangerous for children. It is difficult for parents to discover it at the first time and respond in time, which often brings greater challenges to rescue work. Traditional life-saving methods, such as lifeguard observation and manual calls for help, are difficult to play a role in time in dry drowning cases.

[0004] At present, drowning monitoring systems on the market are mainly wet drowning monitoring devices. In view of the limitations of existing technologies, it is particularly important to develop a device that can monitor and warn of dry drowning in real time.

[0005] Therefore, those skilled in the art are committed to developing a neck ring and a dry drowning detection method that can detect dry drowning in real time. Summary of the invention

[0006] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a neck ring for dry drowning detection and a dry drowning detection method.

[0007] To achieve the above-mentioned purpose, a neck ring for dry drowning detection includes a shell, in which a detection device and an alarm device are arranged. When the detection device detects dry drowning, the alarm device activates an alarm.

[0008] Preferably, an elastic rod is provided in the shell, and the elastic rod extends along the length direction of the shell and has a length less than or equal to the length of the shell.

[0009] Preferably, both ends of the shell are detachably connected to each other.

[0010] Preferably, the detection device includes a main control chip, the main control chip is electrically connected to a single-chip microcomputer, and the single-chip microcomputer is electrically connected to a sound sensor.

[0011] Preferably, the main control chip is also electrically connected to a vital sign monitoring sensor, a signal transmitting device is provided next to the vital sign monitoring sensor, and the signal transmitting device is electrically connected to the main control chip.

[0012] Preferably, the alarm device includes a light-emitting reminder device, a sound-emitting reminder device, or an Internet of Things software platform reminder device.

[0013] Preferably, the alarm device is electrically connected to a signal receiving device.

[0014] Preferably, the single chip microcomputer includes a signal amplifier and a filter.

[0015] Preferably, the shell is made of flexible PVC material.

[0016] The present invention also provides a dry drowning detection method, comprising the following steps:

[0017] S1. Collect the wearer's throat sound;

[0018] S2, determine whether the volume or frequency exceeds 45 decibels or 4000 Hz;

[0019] S3, when the volume or frequency exceeds 45 decibels or 4000 Hz in step S2, the vital sign monitoring sensor is activated;

[0020] S4, the active chip determines whether the vital signs are qualified by analyzing the data collected by the vital signs monitoring sensor;

[0021] S5. When the main control chip determines that each vital sign is unqualified in step S4, the main control chip activates the alarm device to sound an alarm.

[0022] The beneficial effects of the present invention are: the present invention can monitor the wearer's physical condition in real time, and can promptly detect and alarm when dry drowning occurs. The present invention has a simple and light structure and will not interfere with the wearer's behavior and movement when used. It is easy to wear and disassemble, and long-term wearing is beneficial to physical health, so it is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the use of a specific implementation method of the present invention.

[0024] Figure 2 It is a structural schematic diagram of a specific implementation mode of the present invention.

[0025] Figure 3 It is a top view of a specific embodiment of the present invention.

[0026] Figure 4 It is a circuit connection diagram of a specific implementation mode of the present invention.

[0027] Figure 5 It is an operation logic diagram of a specific implementation mode of the present invention.

[0028] 1. Shell; 2. Detection device; 201. Sound sensor; 202. Single chip microcomputer; 202a. Signal amplifier; 202b. Filter; 203. Main control chip; 204. Vital sign monitoring sensor; 205. Signal transmitting device; 3. Alarm device; 301. Light-emitting reminder device; 302. Voice reminder device; 303. Internet of Things software platform reminder device; 304. Signal receiving device. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific manner, and therefore cannot be understood as limiting the present invention. The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] like Figure 1-4 As shown, a neck ring for dry drowning detection includes a shell 1, which is made of flexible PVC material and provides an installation basis for the device. An elastic rod (not marked in the figure) is arranged in the shell 1, and the elastic rod is used to support the structure of the shell 1 and shape it. When in use, the elastic rod can be appropriately bent according to the user's neck curve. The setting of the elastic rod makes the shell 1 fit the neck more closely. This fit not only enhances the stability and supporting force of the shell 1, but also reduces the shaking and displacement of the device during wearing, thereby providing a more comfortable wearing experience.

[0031] The two ends of the shell 1 are detachably connected to each other. In this embodiment, the detachable connection is a magnetic connection. Other embodiments may also use other methods, such as snap-on, bonding, threaded matching, etc. The present application adopts a magnetic design, that is, magnets are arranged at the opposite ends of the shell (not marked in the figure), so that the two ends of the shell 1 can be quickly disassembled and connected, thereby improving the convenience of use. At the same time, the magnetic field generated by the magnet can act on the blood in the wearer's body, and accelerates blood circulation by changing the motion state of charged particles in the blood. At the same time, it also affects the deformability of red blood cells, making it easier for them to pass through tiny blood vessels, thereby increasing the contact area and time between red blood cells and oxygen, regulating the blood oxygen content of the drowning person, and appropriately alleviating the dry drowning hypoxia situation of the drowning person.

[0032] A detection device 2 and an alarm device 3 are arranged in the shell 1, wherein the detection device 2 includes a main control chip 203, which is mainly responsible for data calculation and signal sending and receiving. The main control chip 203 is electrically connected to a single-chip microcomputer 202, which includes a signal amplifier 202a and a filter 202b. The single-chip microcomputer 202 is electrically connected to a sound sensor 201. In this embodiment, the sound sensor 201 is close to the throat of the wearer, so as to accurately capture the subtle sound signal emitted by the throat of the wearer. When the sound waves generated by the wearer's movement hit the surface of the sound sensor 201, the piezoelectric material inside it will produce a tiny charge change, which can be measured and converted into an electrical signal. The sound sensor 201 transmits the received electrical signal to the single-chip microcomputer 202. The signal amplifier 202a in the single-chip microcomputer 202 is used to amplify the received subtle sound fluctuations and transmit the enhanced sound signal to the filter 202b. The filter 202b is used to effectively filter out the received enhanced sound signal to ensure that the useful sound signal passes through without attenuation. Under normal circumstances, the frequency range of human voice is usually between 250Hz and 4,000Hz, and the volume is maintained at about 40 decibels. When dry drowning occurs, the sound waveform emitted by the wearer becomes abnormal and unstable, and its characteristics change significantly compared with the audio signal during normal vocalization. The frequency becomes more chaotic, the amplitude increases sharply, and the duration varies depending on individual differences and the severity of the situation. If the volume of the sound signal emitted from the throat exceeds 45 decibels and the frequency exceeds 4000Hz, the single-chip microcomputer 202 determines that there is a risk of drowning. The single-chip microcomputer 202 transmits the analysis results to the main control chip 203, and the main control chip 203 starts the electrically connected vital sign monitoring sensor 204, which includes a heart rate monitoring sensor, a blood oxygen saturation sensor, and a breathing detection sensor. Under normal conditions, the wearer's heart rate is 60-100 beats / minute (for very healthy or athletic individuals, it may be as low as 40-60 beats / minute), blood oxygen saturation is 95%-100%, and respiratory rate is 12-20 times / minute. When choking on water, the wearer's heart rate may rise to more than 120 beats / minute, blood oxygen saturation drops below 90%, and respiratory rate rises to more than 30 times / minute, indicating that the situation is critical and requires immediate medical intervention. The vital sign monitoring sensor 204 transmits the above information collected to the main control chip 203. The main control chip 203 determines whether the wearer is drowning by analyzing the above vital signs. Once it is determined that the wearer may suffer from dry drowning, the main control chip 203 transmits the alarm signal to the alarm device 3 through the signal transmitting device 205. Through this mechanism, the system can identify dry drowning at an early stage and discover and eliminate a large number of potential risks as soon as possible.

[0033] The alarm device 3 is provided with a corresponding signal receiving device 304. After receiving the alarm signal from the main control chip 203, the guardian is warned to take timely measures by means of software reminders, phone calls, and text messages through the sound reminder device 302, or the light reminder device 301 or the Internet of Things software platform reminder device 303. It is also equipped with a GPS positioning system, which can accurately record the location information of the person who falls into the water. Through wireless transmission technologies such as GPRS, the device can send the location information, image data, etc. of the drowning person to the designated server in real time so that relevant personnel can respond quickly.

[0034] When in use, the arc-shaped shell 1 is wrapped around the wearer's neck, so that the detection device 2 is close to the wearer's throat, and the sound sensor 201 is turned on. The sound sensor 201 transmits the received sound to the single-chip computer 202 for analysis. When the single-chip computer 202 analyzes that there may be a dry drowning situation, it transmits the signal to the main control chip 203. The main control chip 203 starts the vital sign monitoring sensor 204 to perform secondary confirmation by detecting various physical indicators of the wearer. When the wearer's various physical indicators are not qualified, the main control chip 203 starts the alarm device 3 to make sound, light and Internet of Things software alarm.

[0035] like Figure 5 As shown, the present invention also provides a dry drowning detection method using the dry drowning detection neck ring as described above, comprising the following steps:

[0036] S1. Use the sound sensor 201 to collect the sound from the wearer's throat. The sound sensor 201 collects the sound waves generated by the wearer's movement and converts them into electrical signals;

[0037] S2, using the single chip computer 202 to determine whether the volume or frequency of the throat sound collected in step S1 exceeds 45 decibels or 4000 Hz;

[0038] S3. When the volume or frequency of the wearer's throat sound exceeds 45 decibels or 4000 Hz in step S2, the main control chip 203 activates the vital sign monitoring sensor 204;

[0039] S4, the main control chip 203 determines whether the vital signs are qualified by analyzing the data collected by the vital sign monitoring sensor 204. Specifically, the main control chip 203 determines whether the wearer's heart rate collected in step S3 exceeds 120 beats / minute, whether the blood oxygen concentration is lower than 90%, and whether the respiratory rate is greater than 30 times / minute;

[0040] S5. When the wearer's heart rate exceeds 120 beats / minute, the blood oxygen concentration is lower than 90%, and the breathing rate is greater than 30 times / minute in step S4, the main control chip 203 determines that the relevant vital signs are unqualified and the wearer is in a dry drowning situation, and the main control chip 203 activates the alarm device to sound an alarm.

[0041] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A neck ring for dry drowning detection, characterized in that: The invention comprises a housing (1), wherein a detection device (2) and an alarm device (3) are arranged in the housing (1); when the detection device (2) detects dry drowning, the alarm device (3) activates an alarm.

2. The dry drowning detection neck ring according to claim 1, characterized in that: An elastic rod is provided in the shell (1), and the elastic rod extends along the length direction of the shell (1) and has a length that is less than or equal to the length of the shell (1).

3. The dry drowning detection neck ring according to claim 1 or 2, characterized in that: The two ends of the shell (1) are detachably connected to each other.

4. The dry drowning detection neck ring according to claim 1, characterized in that: The detection device (2) comprises a main control chip (203), the main control chip (203) is electrically connected to a single-chip computer (202), and the single-chip computer (202) is electrically connected to a sound sensor (201).

5. The dry drowning detection neck ring according to claim 4, characterized in that: The main control chip (203) is also electrically connected to a vital sign monitoring sensor (204), and a signal transmitting device (205) is provided next to the vital sign monitoring sensor (204), and the signal transmitting device (205) is electrically connected to the main control chip (203).

6. The dry drowning detection device (2) according to claim 1, 2 or 3, characterized in that: The alarm device (3) comprises a light-emitting reminder device (301) or a sound-emitting reminder device (302) or an Internet of Things software platform reminder device (303).

7. The dry drowning detection device (2) according to claim 6, characterized in that: The alarm device (3) is electrically connected to a signal receiving device (304).

8. The dry drowning detection device (2) according to claim 4, characterized in that: The single chip computer (202) comprises a signal amplifier (202a) and a filter (202b).

9. The dry drowning detection device (2) according to claim 1, characterized in that: The shell (1) is made of flexible PVC material.

10. A dry drowning detection method, characterized in that: The following steps are involved: S1. Collect the wearer's throat sound; S2, determine whether the volume or frequency exceeds 45 decibels or 4000 Hz; S3, when the volume or frequency exceeds 45 decibels or 4000 Hz in step S2, the vital sign monitoring sensor (204) is activated; S4, the main control chip (203) determines whether the vital signs are qualified by analyzing the data collected by the vital signs monitoring sensor (204); S5. When the main control chip (203) determines in step S4 that each vital sign is unqualified, the main control chip (203) activates the alarm device (3) to sound an alarm.

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