CN216957146U

CN216957146U - Device for detecting fall of old people

Info

Publication number: CN216957146U
Application number: CN202220142701.9U
Authority: CN
Inventors: 许乐; 赵文龙; 宋状
Original assignee: Nanchang Hangkong University
Current assignee: Nanchang Hangkong University
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-07-12
Anticipated expiration: 2032-01-19

Abstract

The utility model discloses a device for detecting the fall of old people, which comprises a device body, wherein the device body comprises a control module, a fall detection module, a GPS positioning module, an alarm module, a wireless communication module, a display module and a power supply module; the utility model can judge whether the acceleration value, the inclination angle, the heart rate and the blood pressure of the old people exceed the normal range or not and judge the height change characteristic of the old people through the 6-axis motion sensor module, the ultrasonic ranging module and the heart rate and blood pressure measuring module in the fall detection module, can quickly and accurately detect whether the old people fall or not, can remotely warn a guardian and can also send help signals to pedestrians.

Description

Device for detecting fall of old people

Technical Field

The utility model relates to the field of health monitoring, in particular to a device for detecting falling of old people.

Background

With the increasing aging trend, research on the social care problem and the medical care problem of the elderly is more and more important. The elderly are prone to fall down due to their inconvenient activities and are fragile, so that the fall is also a common cause of injury and death of the elderly. The old people often have the problem such as fracture, damaged soft tissue and brain injury after falling down, consequently can reduce disability rate and mortality by a wide margin if can promptly help the old people who falls down.

Also there are a lot of wearable equipment to detect old person's fall at present, like bracelet, clothes etc. but these equipment are mostly just come the judgement whether old person falls according to acceleration sensor's data, and this kind of method and the device that detects falls appear misjudgement easily. For example, in the fall detection method and system proposed in patent application No. CN106652310A, the sum of the vectors of the gravitational accelerations of the X axis, the Y axis, and the Z axis is calculated to determine whether the sum is smaller than a preset value, so as to determine whether the human body is in a weightless state, an overweight state, or a static state, and count the number of the weightless state, the overweight state, or the static state, thereby determining whether the human body falls, but this method and system only use the acceleration to determine whether the human body falls may generate many false alarms, and the accuracy is low.

Therefore, the applicant provides a device for detecting the fall of the old with high accuracy, so as to face the current situation that the fall detection accuracy is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems in the prior art and provides a device for detecting the fall of the old.

In order to realize the purpose, the technical scheme provided by the utility model is as follows: a device for detecting the fall of old people comprises a device body, wherein the device body comprises a control module, a fall detection module, a GPS positioning module, an alarm module, a wireless communication module, a display module and a power module, the fall detection module, the alarm module, the wireless communication module, the display module and the power module are all connected with the control module, the fall detection module and the GPS positioning module are connected with the power module, the fall detection module comprises a 6-axis motion sensor module, an ultrasonic ranging module and a heart rate and blood pressure measuring module, and the alarm module comprises a buzzer and an LED lamp;

the 6-axis motion sensor module is used for detecting an X-axis acceleration value, a Y-axis acceleration value and a Z-axis acceleration value of a user and transmitting the acceleration values to the control module through an I2C bus;

the ultrasonic ranging module is used for measuring the height value of the device and the ground and transmitting the height value to the control module through an IO port;

the heart rate and blood pressure measuring module is used for detecting a heart rate value and a blood pressure value of a user and transmitting the heart rate value and the blood pressure value to the control module through a serial port.

Preferably, the control module is composed of a microprocessor and a crystal oscillator circuit, and the model of the microprocessor is STM32F103RCT 6; the wireless communication module is composed of a WH-LTE-7S4, a SIM card and an interface circuit; the display module uses 0.96 inch OLED, and the GPS positioning module uses NEO-7N.

Preferably, the model of the 6-axis motion sensor module is an MPU 6050; the model of the ultrasonic ranging module is HC-SRO 4; the MKB0805 is selected as the heart rate and blood pressure measuring module.

Preferably, the power module comprises a 5V switching power circuit, a 5V to 12V boost circuit and a 5V to 3.3V linear voltage stabilizing circuit; the input end of the 5V switching power supply circuit is externally connected with a 5V direct current power supply, the output of the 5V-to-12V booster circuit is connected with the wireless communication module, and the 5V-to-3.3V linear voltage stabilizing circuit is respectively connected with the display module and the control module.

Preferably, the ultrasonic ranging module uses 4 HC-SROs 4, and is respectively installed in the upper, lower, left and right directions of the device body

The utility model has the beneficial effects that:

1. the utility model can judge whether the acceleration value, the inclination angle, the heart rate and blood pressure of the old people exceed the normal range or not and can quickly and accurately detect whether the old people fall or not through the 6-axis motion sensor module, the ultrasonic ranging module and the heart rate and blood pressure measuring module in the fall detection module.

2. The utility model can not only remotely warn the guardian but also send help seeking signals to the pedestrian after the old falls down.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model.

FIG. 1 is a general layout of the present invention;

FIG. 2 is a schematic view of the apparatus of the present invention;

fig. 3 is a flowchart of a fall detection procedure according to the present invention.

The attached drawings are marked as follows:

the system comprises a control module 1, a control module 2, a tumble detection module 3, a GPS positioning module 4, a wireless communication module 5, a display module 6, a power module 7, a 6-axis motion sensor module 8, an ultrasonic ranging module 9, a heart rate and blood pressure measurement module 10, a 5V switching power circuit 11, a 5V to 12V boosting circuit 12, a 5V to 3.3V linear voltage stabilizing circuit 13, an alarm module 14, an LED lamp 15 and a buzzer.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1-3, in a preferred embodiment of the present invention, a device for detecting a fall of an elderly person comprises a device body, the device body comprises a control module 1, a fall detection module 2, a GPS positioning module 3, an alarm module 13, a wireless communication module 4, a display module 5 and a power module 6, the fall detection module 2, the wireless communication module 4, the alarm module 13, the display module 5 and the power module 6 are all connected to the control module 1, the fall detection module 2, the GPS positioning module 3 are connected to the power module 6, the GPS positioning module 3 is used for detecting geographical position information of a user and transmitting the geographical position information to the control module 1 through a serial port, the control module 1 transmits information to be uploaded to a mobile phone terminal to the wireless communication module 4 through a serial port, and the wireless communication module 4 transmits the information to a cloud server through a 4G network, the cloud server sends the information to the mobile phone of the guardian so as to check the condition of the old in real time; specifically, the wireless communication module 4 sends the information to a cloud server through a 4G network, the cloud server sends the information to a mobile phone of a guardian, and the information is prior art and therefore not detailed in detail, the fall detection module 2 comprises a 6-axis motion sensor module 7, an ultrasonic ranging module 8 and a heart rate and blood pressure measurement module 9, and the alarm module 13 comprises a buzzer 15 and an LED lamp 14;

the 6-axis motion sensor module 7 is used for detecting the acceleration values of the X axis, the Y axis and the Z axis of the user and transmitting the acceleration values to the control module 1 through an I2C bus;

the ultrasonic ranging module 8 is used for measuring the height value between the device and the ground and transmitting the height value to the control module 1 through an IO port;

the heart rate and blood pressure measuring module 9 is used for detecting a heart rate value and a blood pressure value of a user and transmitting the heart rate value and the blood pressure value to the control module 1 through a serial port;

in the utility model, the control module 1 receives the acceleration value of the 6-axis motion sensor module 7 and calculates the combined acceleration value and the inclination angle of the user as one of the conditions for judging the fall; the control module 1 receives the height value measured by the ultrasonic ranging module 8 and the ground and takes the height value as one of the conditions for judging the fall; the control module 1 receives the heart rate value and the blood pressure value of the heart rate and blood pressure measuring module 9 as one of the conditions for judging the fall.

As a preferred embodiment of the present invention, it may also have the following additional technical features:

in this embodiment, the control module 1 is composed of a microprocessor and a crystal oscillator circuit, specifically, the crystal oscillator circuit includes crystal oscillators Y1 and Y2, and the model of the microprocessor is STM32F103RCT 6; the wireless communication module 4 is composed of a WH-LTE-7S4, a SIM card and an interface circuit; the display module 5 uses 0.96 inch OLED, the GPS positioning module 3 uses NEO-7N, and STM32F103RCT6 sends information to be displayed to the user to be seen to the display module 5 through the SPI bus.

In this embodiment, the model of the 6-axis motion sensor module 7 is MPU 6050; the model of the ultrasonic ranging module 8 is HC-SRO 4; the MKB0805 is selected as the heart rate and blood pressure measuring module 9.

In this embodiment, the power module 6 includes a 5V switching power supply circuit 10, a 5V to 12V boost circuit 11, and a 5V to 3.3V linear voltage regulator circuit 12; the input end of the 5V switch power supply circuit 10 is externally connected with a 5V direct current power supply, the output of the 5V-to-12V booster circuit 11 is connected with the wireless communication module 4, and the 5V-to-3.3V linear voltage stabilizing circuit 12 is respectively connected with the display module 5 and the control module 1.

In this embodiment, the ultrasonic ranging module 8 uses 4 HC-SROs 4, and is installed in the upper, lower, left, and right directions of the device body, so that the height between the wrist and the ground can be measured by wearing the device on the wrist.

Specifically, after the old people wear the multifunctional health care device on the hands, the 6-axis motion sensor module 7 can detect the motion state of the user in real time, acquire the height between the device and the ground, the heart rate and blood pressure value and the geographic position information of the user in a timing mode, and upload the information to the cloud server end and the mobile phone end of a guardian in real time through the wireless communication module 4; the buzzer 15 and the LED lamp 14 are respectively connected to two pins of the STM32F103RCT6, and the default state of the two pins is high level. When the old falls down, the control module 1 transmits information to the alarm module 13, and the level of a pin connected with the buzzer 15 is changed from high level to low level, so that the old can buzz; the level of the pin connected with the LED lamp 14 will jump all the time, and change from high level to low level, and then change from low level to high level again, so that the LED lamp 14 flickers, thereby sending a help signal to the pedestrian.

In the embodiment, referring to fig. 2, in the utility model, data for judging fall detection come from a 6-axis motion sensor module 7, an ultrasonic distance measurement module 8 and a heart rate and blood pressure measurement module 9, when the combined acceleration value of a user exceeds 2.1g, the inclination angle is greater than 30 degrees and the height value returned by only one HC-SRO4 module in the ultrasonic distance measurement module 8 is less than 40cm, the old man is judged to be in a fall state, and a control module 1 controls to transmit information to an alarm module 13 for warning; when the combined acceleration value of the user exceeds 2.1g, the inclination angle is greater than 30 degrees, the height value of the wrist and the ground is greater than 40cm, but the variation range of the heart rate and the blood pressure value of the user exceeds +/-30% of the normal value, the user is judged to be in a falling state at the moment, the control module 1 controls the information to be transmitted to the alarm module 13 for warning, and the user is judged not to fall under other conditions.

The above additional technical features can be freely combined and used in superposition by those skilled in the art without conflict.

The above description is only a preferred embodiment of the present invention, and the technical solutions that achieve the objects of the present invention by basically the same means are all within the protection scope of the present invention.

Claims

1. The utility model provides a detect device that old person fell down which characterized in that: the device comprises a device body, wherein the device body comprises a control module (1), a fall detection module (2), a GPS positioning module (3), an alarm module (13), a wireless communication module (4), a display module (5) and a power module (6), the fall detection module (2), the alarm module (13), the wireless communication module (4), the display module (5) and the power module (6) are all connected with the control module (1), the fall detection module (2) and the GPS positioning module (3) are connected with the power module (6), the fall detection module (2) comprises a 6-axis motion sensor module (7), an ultrasonic ranging module (8) and a heart rate and blood pressure measuring module (9), and the alarm module (13) comprises a buzzer (15) and an LED lamp (14);

the 6-axis motion sensor module (7) is used for detecting the acceleration value of the X axis, the acceleration value of the Y axis and the acceleration value of the Z axis of the user and transmitting the acceleration values to the control module (1) through an I2C bus;

the ultrasonic ranging module (8) is used for measuring the height value between the device and the ground and transmitting the height value to the control module (1) through an IO port;

the heart rate and blood pressure measuring module (9) is used for detecting a heart rate value and a blood pressure value of a user and transmitting the heart rate value and the blood pressure value to the control module (1) through a serial port.

2. The device for detecting the fall of an elderly person according to claim 1, wherein: the control module (1) consists of a microprocessor and a crystal oscillator circuit, wherein the model of the microprocessor is STM32F103RCT 6; the wireless communication module (4) is composed of a WH-LTE-7S4, a SIM card and an interface circuit; the display module (5) uses 0.96 inch OLED, and the GPS positioning module (3) selects NEO-7N.

3. The device for detecting the fall of an elderly person according to claim 1, wherein: the model of the 6-axis motion sensor module (7) is an MPU 6050; the model of the ultrasonic ranging module (8) is HC-SRO 4; the heart rate and blood pressure measuring module (9) selects MKB 0805.

4. The device for detecting the fall of an elderly person according to claim 1, wherein: the power supply module (6) comprises a 5V switching power supply circuit (10), a 5V-to-12V booster circuit (11) and a 5V-to-3.3V linear voltage stabilizing circuit (12); the input end of the 5V switching power supply circuit (10) is externally connected with a 5V direct current power supply, the output of the 5V-to-12V booster circuit (11) is connected with the wireless communication module (4), and the 5V-to-3.3V linear voltage stabilizing circuit (12) is respectively connected with the display module (5) and the control module (1).

5. The device for detecting the fall of an elderly person according to claim 1, wherein: the ultrasonic ranging module (8) uses 4 HC-SRO4 and is respectively installed in the upper, lower, left and right directions of the device body.