CN211076293U - An anti-drowning smart bracelet - Google Patents

Abstract

The utility model provides an anti-drowning smart bracelet, which relates to the field of anti-drowning equipment. The anti-drowning smart wristband includes a wristband body, a control chip, an airbag assembly and a power supply. The wristband body is provided with a heart rate sensor and an acceleration sensor. The airbag assembly includes an airbag, an air source and a valve. The heart rate sensor, acceleration sensor and valve are respectively related to The control chip is electrically connected, and the control chip is used to control the valve to open when the received heart rate detection value is greater than the heart rate setting value and the acceleration detection value is greater than the acceleration setting value. According to the wearer's struggling movement in the early stage of drowning, the heart rate sensor is used to detect the wearer's heart rate change, and the acceleration sensor detects whether the wearer's hand is rapidly slapping or waving. When the heart rate detection value is greater than the heart rate setting When the acceleration detection value is greater than the acceleration set value, the control chip inflates the airbag quickly, providing timely protection for the wearer and better safety.

Description

An anti-drowning smart bracelet

technical field

The utility model relates to the technical field of anti-drowning equipment, in particular to an anti-drowning smart bracelet.

Background technique

For beginner swimmers, drowning accidents may occur because they do not understand the water conditions without special supervision. However, life buoys are often difficult to carry, and products such as life-saving bracelets have subsequently been developed.

For example, the Chinese utility model patent with the authorization announcement number CN207097208U and the authorization announcement date of 2018.03.13 discloses an intelligent anti-drowning system device, and specifically discloses that the intelligent anti-drowning system device includes a wristband body, an active protection device, a remote monitoring display The terminal, the sound and light alarm device and the wireless node are five parts. The wristband body is connected to the active protection device, the remote monitoring display terminal, and the sound and light alarm device respectively through the wireless node; the wristband body includes the wristband body, the first wristband, the first Controller, vibration motor, temperature sensor, heart rate detection component, GPS component, water pressure detection component, SMS component, first energy storage component, display component, bluetooth component, clock component, memory, button; active protection device includes shell, plastic Case, second wristband, airbag, gas cylinder, gas valve, solenoid valve, second controller, second bluetooth component, second energy storage component.

The water pressure detection component detects the wearer's water pressure parameters in the water in real time; the heart rate detection component tracks and obtains the person's heart rate and changes in real time; the water pressure detection component detects the water pressure of the person in the water in real time, and when the water pressure exceeds a certain set value After the time, it is considered that there is a danger of drowning, and a signal is sent to the first controller; when the heart rate suddenly rises and abnormal changes, and the water pressure exceeds the set value for a period of time, the sound and light alarm device is activated to give an alarm; the first controller sends out The signal triggers the active protection device, and the active protection device quickly pops up the airbag, so that the human body does not sink, so that the rescue can be carried out in time.

However, in the actual use process, if the wearer is drowning, according to the survival response of the person in the water, there will usually be a struggle action at the beginning, the hand will be stretched out of the water surface, and the water surface will be hit to make the nose and mouth surface. and accompanied by hand waving movements. However, when using the drowning prevention device in the prior art, the water pressure detection component cannot effectively detect that the wearer is in danger of drowning due to the struggling action of the person in the water. Therefore, the drowning prevention device in the prior art has the problems of untimely protection and poor safety.

Utility model content

In order to solve the above problems, the purpose of the present invention is to provide an anti-drowning smart bracelet, so as to solve the problems that the anti-drowning device in the prior art does not protect the wearer in time and has poor safety.

The technical scheme of the anti-drowning smart bracelet of the present invention is as follows:

The anti-drowning smart wristband includes a wristband body, a control chip, an airbag assembly and a power supply. The wristband body is provided with a heart rate sensor for detecting the wearer's heart rate, and an acceleration sensor for detecting the wearer's wrist acceleration. The airbag assembly includes an airbag, an air source and a valve, the heart rate sensor, the acceleration sensor and the valve are respectively electrically connected with a control chip, the control chip is used for when the received heart rate detection value is greater than the heart rate set value and the acceleration detection value is greater than the acceleration The control valve opens at the set value.

Beneficial effects: According to the wearer's struggling action in the early stage of drowning, the heart rate sensor is used to detect the wearer's heart rate change, and the acceleration sensor detects whether the wearer's hand has a fast slapping or waving action. When the heart rate detection value is greater than the heart rate Heart rate setting value, and when the acceleration detection value is greater than the acceleration setting value due to the hand action, the control chip makes the airbag inflate quickly, and through the buoyancy generated by the airbag, it provides timely protection for the wearer, and the safety is better.

Further, the wristband body includes a wristband and a casing connected to the wristband, the control chip and the airbag assembly are installed in the casing, and the sensing probe of the heart rate sensor penetrates the bottom wall of the casing. .

Further, in order to meet the requirement of miniaturization, the heart rate sensor is an optical heart rate sensor.

Further, in order to meet the requirement of miniaturization, the acceleration sensor is a piezoelectric acceleration sensor.

Further, in order to avoid triggering the airbag to pop up due to the increased heart rate caused by the wearer's normal swimming, the set value of the heart rate is 120 beats/min to 150 beats/min.

Further, in order to ensure that the normal stroke action of the wearer will not trigger the airbag to pop up, the acceleration setting value is 1g to 3g.

Further, in order to ensure the waterproofness of the casing, an airbag outlet is provided on the casing, a sealing cover is movably installed at the airbag outlet, and a buckle structure is arranged between the sealing cover and the casing.

Further, in order to ensure the waterproofness of the casing, the casing is provided with an airbag outlet, a sealing cover is movably installed at the airbag outlet, and the airbag outlet is forcibly fitted with the sealing cover.

Further, in order to simplify the structure of the gas source and reduce the volume of the gas source, the gas source is a compressed air cylinder, a high-pressure helium gas cylinder, or a high-pressure nitrogen gas cylinder.

Further, in order to improve the functionality of the anti-drowning smart bracelet, a sealing cover is also provided on the outer side of the airbag outlet on the casing, and a compass is installed in the sealing cover.

Description of drawings

Fig. 1 is the principle schematic diagram of the specific embodiment 1 of the anti-drowning smart bracelet of the present invention;

FIG. 2 is a partial cross-sectional schematic view of the connection between the housing and the sealing cover in FIG. 1 .

In the picture: 1-Bracelet body, 10-Wristband, 11-Shell, 110-Snap hole, 12-Sealing cover, 120-Elastic snap joint, 2-Control chip, 3-Airbag, 4-High pressure helium Gas cylinder, 40-valve, 5-heart rate sensor, 6-acceleration sensor, 7-power supply.

Detailed ways

The specific embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

Specific embodiment 1 of the anti-drowning smart wristband of the present invention, as shown in FIG. The wristband body 1 includes a wristband 10 and a housing 11 connected to the wristband 10. The interior of the housing 11 has an installation space for accommodating a control chip 2, an airbag assembly, a heart rate sensor 5, an acceleration sensor 6 and a power supply 7. In the embodiment, the housing 11 is a box structure with a rectangular outer outline, an airbag outlet is opened on the upper side of the housing 11 , and a sealing cover 12 is movably installed at the airbag outlet. In order to improve the functionality of the anti-drowning smart bracelet, a sealing cover is also provided on the outer side of the airbag outlet on the housing 11, and a compass (not shown in the figure) is installed in the sealing cover. Observe the direction of the compass to determine the escape direction and swimming route.

The airbag assembly comprises an airbag 3, a high-pressure helium gas cylinder 4 and a valve 40, the valve 40 is arranged at the bottle mouth of the high-pressure helium gas bottle 4, and a gas path is connected between the airbag 3 and the bottle mouth of the high-pressure helium gas bottle 4, The airbag 3 is rapidly inflated by opening the valve 40, and the high-pressure helium gas cylinder 4 constitutes the gas source. The heart rate sensor 5 and the acceleration sensor 6 are respectively installed in the casing 11, and the sensing probe of the heart rate sensor 5 penetrates the bottom wall of the casing 11. When the wearer wears the wristband, the bottom wall of the casing 11 is attached to the wearer. At the wrist of the wearer, the sensing probe of the heart rate sensor 5 detects the tissue at the wrist, so as to obtain the real-time heart rate value of the wearer. In this embodiment, the heart rate sensor 5 is an optical heart rate sensor, and the specific principle is as follows: the capacitive light is emitted to the skin, and the light reflected back through the skin tissue is received by the photosensitive sensor and converted into an electrical signal, and then converted into a digital signal through the electrical signal , and then based on the absorbance of blood can measure the heart rate.

The acceleration sensor 6 is a piezoelectric acceleration sensor, and the piezoelectric acceleration sensor utilizes the characteristic that the sensitive core in the sensor generates a charge signal proportional to the vibration acceleration, thereby realizing the measurement of the vibration acceleration. The heart rate sensor 5, the acceleration sensor 6 and the valve 40 are respectively electrically connected to the control chip 2, and the heart rate detection value and the acceleration detection value are respectively sent to the control chip 2 through the heart rate sensor 5 and the acceleration sensor 6. When the heart rate detection value is greater than the heart rate setting value and When the acceleration detection value is greater than the acceleration set value, the control chip controls the valve 40 to open, so that the helium gas in the high-pressure helium gas cylinder 4 is filled into the air bag 3 through the gas path. According to the wearer's struggling movement in the early stage of drowning, the heart rate sensor 5 detects the wearer's heart rate change, and the acceleration sensor 6 detects whether the wearer's wrist is rapidly slapping or waving. When the heart rate and hand movements exceed the set value When the value is fixed, the airbag 3 is controlled to inflate rapidly, and the buoyancy generated by the airbag 3 provides timely protection for the wearer, and the safety is better.

In this embodiment, the set value of the heart rate is 120 beats/min, which is slightly larger than the heart rate of the human body during normal swimming, so as to prevent the airbag 3 from popping up due to the increased heart rate caused by the wearer's normal swimming; the set value of the acceleration is 1g, this value is slightly larger than the acceleration value of the wrist of the human body during normal strokes, to ensure that the wearer's normal strokes will not trigger the airbag 3 to pop up.

During normal swimming, the airbag 3 is compressed and installed in the casing 11. By setting a sealing strip between the sealing cover 12 and the mouth edge of the airbag outlet of the casing 11, water is prevented from infiltrating into the casing 11, and the internal control is ensured. The working stability of the chip 2, the airbag assembly, the heart rate sensor 5, the acceleration sensor 6 and the power supply 7. The sealing cover 12 and the casing 11 are rotatably connected by a hinge shaft, and a buckle structure is provided between the casing 11 and the sealing cover 12 . As shown in FIG. 2 , the buckle structure includes a clamping hole on the casing 11 . 110 and the elastic snap joint 120 connected to the sealing cover 12 , the sealing cover 12 is covered at the outlet of the airbag, and is inserted into the snap hole 110 through the elastic snap joint 120 to realize the sealing connection between the sealing cover 12 and the casing 11 . After the high-pressure helium gas cylinder 4 is inflated into the air bag 3, the air bag 3 presses the sealing cover 12, so that the elastic snap joint 120 is disengaged from the clamping hole 110. After the air bag outlet is opened, the air bag 3 quickly extends and expands from the air bag outlet. The larger, inflated airbag 3 provides buoyancy for the wearer and prevents the risk of drowning.

The specific embodiment 2 of the anti-drowning smart bracelet of the present invention is different from the specific embodiment 1 in that, in order to adapt to the needs of wearers of different physiques, the heart rate setting value of the control chip can be set to 150 beats/min , which can meet the normal use of wearers with fast heart rate. In other embodiments, the heart rate setting value may be any value between 120 beats/min and 150 beats/min, so as to meet the wearer's actual use requirements.

The specific embodiment 3 of the anti-drowning smart bracelet of the present invention is different from the specific embodiment 1 in that, in order to meet the actual use requirements of the wearer, the acceleration setting value of the control chip can be set to 3g. In other embodiments, the acceleration setting value may be any value between 1 g and 3 g.

The specific embodiment 4 of the anti-drowning smart bracelet of the present invention is different from the specific embodiment 1 in that, in order to meet the actual requirements of production, the acceleration detection value can be a piezoresistive acceleration sensor. In other embodiments, the acceleration detection value may also be a capacitive acceleration sensor.

The specific embodiment 5 of the anti-drowning smart bracelet of the present invention is different from the specific embodiment 1 in that, in order to simplify the casing structure, the sealing cover and the mouth edge of the airbag outlet of the casing are forcibly fitted together, The cover is strongly installed at the outlet of the airbag, forming a certain preload connection force between the two. When the top pressure of the airbag exceeds the preload connection force, the sealing cover can be completely opened, eliminating the need for the sealing cover and the shell. connection structure between.

The specific embodiment 6 of the anti-drowning smart bracelet of the present invention is different from the specific embodiment 1 in that, in order to meet the actual requirements of production, the high-pressure helium gas cylinder can be replaced with a compressed air cylinder, and the compressed air cylinder constitutes a gas cylinder. source. In other embodiments, the high-pressure helium gas cylinder can also be replaced with a high-pressure nitrogen gas cylinder, and the high-pressure nitrogen gas cylinder constitutes a gas source. Alternatively, the high-pressure helium gas cylinder is directly replaced with a gas generator, the control chip is controlled and connected to the ignition module of the gas generator, and the solid fuel is ignited by the ignition module to quickly inflate the airbag, and the gas generator constitutes the gas source.

Claims (10)

1. The utility model provides a prevent drowned intelligent bracelet, characterized by, includes bracelet body, control chip, air bag subassembly and power, be equipped with the rhythm of the heart sensor that is used for detecting the person's of wearing rhythm of the heart on the bracelet body to and be used for detecting the acceleration sensor of the person's of wearing wrist acceleration, air bag subassembly includes gasbag, air supply and valve, rhythm of the heart sensor, acceleration sensor and valve are connected with the control chip electricity respectively, control chip is used for controlling the valve and opens when received rhythm of the heart detected value is greater than rhythm of the heart setting value and acceleration detected value and is greater than the acceleration setting value.

2. The drowning-preventing intelligent bracelet according to claim 1, wherein the bracelet body comprises a wrist strap and a shell connected to the wrist strap, the control chip and the airbag module are installed in the shell, and the sensing probe of the heart rate sensor penetrates out of the bottom wall of the shell.

3. The drowning prevention smart bracelet of claim 2, wherein the heart rate sensor is an optical heart rate sensor.

4. The drowning prevention smart bracelet of claim 1, wherein the acceleration sensor is a piezoelectric acceleration sensor.

5. The drowning prevention smart bracelet of claim 1, 2 or 3, wherein the heart rate setting value is 120 to 150 beats/minute.

6. The drowning prevention smart bracelet of claim 1, 2 or 3, wherein the acceleration setting value is 1g to 3 g.

7. The drowning prevention intelligent bracelet of claim 2, wherein an air bag outlet is arranged on the shell, a sealing cover is movably arranged at the air bag outlet, and a buckling structure is arranged between the sealing cover and the shell.

8. The drowning-preventing intelligent bracelet of claim 2, wherein an air bag outlet is arranged on the shell, a sealing cover is movably arranged at the air bag outlet, and the air bag outlet is in forced fit with the sealing cover.

9. The drowning prevention intelligent bracelet of claim 2, wherein the air source is a compressed air cylinder, a high-pressure helium gas cylinder, or a high-pressure nitrogen gas cylinder.

10. The drowning prevention intelligent bracelet according to claim 2, wherein a sealing cover is further arranged on the outer side of the air bag outlet on the shell, and a compass is installed in the sealing cover.

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