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Falling alarm device and method based on pressure and accelerated speed detection

An alarm device and acceleration technology, applied in the field of fall positioning alarm and remote monitoring, and fall alarm equipment based on pressure and acceleration detection, can solve the problems of endangering the personal safety of the elderly, declining self-care ability, and prone to various accidents , to achieve the effect of not being easy to get used to and improving reliability

Inactive Publication Date: 2015-03-25
SOUTH CHINA UNIV OF TECH
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AI Technical Summary

Problems solved by technology

The outstanding problem brought about by aging and declining birth rate is that as the elderly age increases and their self-care ability declines, when the elderly encounter unknown dangers, they are prone to various accidents due to failure to deal with them in time to a large extent. Accidents that endanger the personal safety of the elderly

Method used

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  • Falling alarm device and method based on pressure and accelerated speed detection
  • Falling alarm device and method based on pressure and accelerated speed detection
  • Falling alarm device and method based on pressure and accelerated speed detection

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Embodiment

[0031] Such as figure 1 As shown, the smart shoes based on pressure detection on the feet mainly include the following modules: ultra-low power chip processor msp430g2553, full-bridge resistance strain gauge, 24-bit AD conversion chip HX711, GSM module, Bluetooth 4.0 slave module, lithium battery etc.

[0032] The full-bridge resistance strain gauge is sandwiched between two hard but elastic cards, and then attached to the heel of the insole, and the lead wire is connected to the processing module. The AD conversion chip HX711 amplifies the weak voltage change of the full-bridge strain gauge, and Carry out AD conversion, transfer the converted processing data to the ultra-low power chip processor msp430g2553, and msp430g2553 monitors the pressure data in real time.

[0033] Since the msp430g2553 has only one serial port, GSM and Bluetooth are required for serial port communication. In order to avoid communication disorder, the method of simulating the serial port with timer ...

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Abstract

The invention discloses a falling alarm device based on pressure and accelerated speed detection. The falling alarm device based on pressure and accelerated speed detection comprises a wrist watch shell body, a peripheral connecting three-axis acceleration sensor, an OLED screen, a GPS positioning module, a Bluetooth 4.0 host module and a buzzer, wherein the peripheral connecting three-axis acceleration sensor is arranged in a wrist watch, and a central processing unit STM32 serves the core of the peripheral connecting three-axis acceleration sensor. The invention further discloses a falling alarm method based on pressure and accelerated speed detection. The falling alarm method based on pressure and accelerated speed detection comprises the following steps that 1, the change of the pressure value, acquired by a pressure sensor, of a person is detected by a processor, and a signal is sent to a receiving module of the wrist watch through a wireless transmitting module when the change of the pressure value reaches a set threshold value; 2, the change of the angle of the wrist is obtained by processing data acquired by the three-axis acceleration sensor through the central processing unit of the wrist watch, whether the change meets a specific law is judged, and an alarm is given immediately when it is judged that a person falls. The falling alarm device and method based on pressure and accelerated speed detection have the advantages that safety and reliability are high, and the alarm method is user-friendly.

Description

technical field [0001] The invention relates to a fall positioning alarm and remote monitoring technology, in particular to a fall alarm device based on pressure and acceleration detection and a method thereof, belonging to the field of safety protection. Background technique [0002] With the rapid and stable development of the national economy and the remarkable improvement of people's living standards, my country has gradually entered the era of declining birthrate and aging population. The aging of the population will soon become an unprecedented new challenge that China is facing. The outstanding problem brought about by aging and declining birth rate is that as the elderly age increases and their self-care ability declines, when the elderly encounter unknown dangers, they are prone to various accidents due to failure to deal with them in time to a large extent. Accidents, thereby endangering the personal safety of the elderly. In these accidents, the accidents caused ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/04
CPCG08B21/0446
Inventor 杨建新郑博晋建秀潘康俊
Owner SOUTH CHINA UNIV OF TECH
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