Sensor system and method for judging body falldown and body protection device

A technology of sensors and inclination sensors, applied in the field of sensors, can solve the problems of low reliability, lack of protection effect, inconvenience, etc.

Active Publication Date: 2013-06-12
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the current fall judgment devices mainly rely on acceleration to judge the occurrence of a fall event, but the human body movement is very complicated, and the reliability of predicting the fall by relying on less or a single human body movement posture information is not high. When falling out, the protective effect will not be achieved. When the human body does not fall and misjudgments are made, it will inevitably bring inconvenience to people.

Method used

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  • Sensor system and method for judging body falldown and body protection device
  • Sensor system and method for judging body falldown and body protection device
  • Sensor system and method for judging body falldown and body protection device

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Embodiment 1

[0045] see figure 1 , figure 1 It is a schematic structural diagram of a sensor system for judging a human fall provided by Embodiment 1 of the present invention.

[0046] The sensor system 100 for judging human falls includes a six-axis sensor module 110 , a single-axis inclination sensor module 120 , a microprocessor module 130 and a power supply module 140 . It can be understood that, in practical applications, the sensor system 100 is generally arranged at the waist of the human body.

[0047] The six-axis sensor module 110 includes a three-axis accelerometer 111 and a three-axis gyroscope 112 . The three-axis accelerometer 111 is used to collect the acceleration of the human body. The three-axis gyroscope 112 is used to collect the angular velocity of the human body. Human body acceleration includes X-axis acceleration, Y-axis acceleration and Z-axis acceleration. The human body angular velocity includes an X-axis angular velocity, a Y-axis angular velocity and a Z-a...

Embodiment 2

[0057] see figure 2 , figure 2 It is a flow chart of the steps of the method for judging a human fall provided by Embodiment 2 of the present invention.

[0058] The method 200 for judging a human fall is based on the sensor system 100 for judging a human fall provided in Embodiment 1 of the present invention, which includes the following steps:

[0059] Step S210: Collecting the acceleration of the human body, the angular velocity of the human body and the inclination of the human body. The human body acceleration includes X-axis acceleration, Y-axis acceleration and Z-axis acceleration, and the human body angular velocity includes X-axis angular velocity, Y-axis angular velocity and Z-axis angular velocity. In the embodiment provided by the present invention, the three-axis accelerometer 111 collects the acceleration of the human body, the three-axis gyroscope 112 collects the angular velocity of the human body, and the single-axis inclination sensor 121 collects the inc...

Embodiment 3

[0088] see Figure 5 , Figure 5 It is a schematic structural diagram of the personal protection device provided by Embodiment 3 of the present invention.

[0089] The body protection device 500 includes a sensor system 510 , an airbag driving module 520 and an airbag 530 .

[0090] The sensor system 510 is consistent with the sensor system 100 provided in Embodiment 1 of the present invention in terms of structure and function, and will not be repeated here.

[0091] The airbag driving module 520 is electrically connected to the sensor system 510 . It can be understood that when the sensor system 510 determines that the human body is about to fall, the microprocessor module in the sensor system 510 drives the airbag driving module 520 to work.

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Abstract

The invention relates to a sensor system for judging body falldown. The sensor system comprises a hexa-axial sensor module, a microprocessor module and a power module, wherein the hexa-axial sensor module comprises a triaxial accelerometer and a three-axis gyroscope. The triaxial accelerometer is used for acquiring body acceleration, and the three-axis gyroscope is used for acquiring body angular speed; the body acceleration comprises X-axis acceleration, Y-axis acceleration and Z-axis acceleration; the body angular speed comprises X-axis angular speed, Y-axis angular speed and Z-axis angular speed; the microprocessor module is electrically connected with the hexa-axial sensor module and a uniaxial tilt angle sensor module; the microprocessor module is used for receiving the body acceleration, the body angular speed and body tilt angles, and is used for processing the body acceleration, the body angular speed and the body tilt angles to judge whether a body falls down or not; the power module is electrically connected with the hexaxial sensor module, the uniaxial tilt angle sensor module and the microprocessor module; and the power module is used for providing a power supply to all the modules. Moreover, the invention also provides a method for judging the body falldown and a body protection device.

Description

technical field [0001] The invention relates to the field of sensors, in particular to a sensor system, method and human protection device for judging human falls. Background technique [0002] With the growth of age and the aging of the body, the life and health of people, especially the elderly, will be seriously affected, and falling is one of the "culprits". A fall is defined as a sudden, involuntary, involuntary change in position, falling onto the ground or a lower level than the initial position. Falls are very common among the elderly, seriously affecting the health and independent living ability of the elderly, and causing psychological stress and fear in the elderly. Falls often cause great damage to the body of the elderly, and sometimes the consequences are even fatal for the elderly. According to statistics, 90% of hip fractures are caused by falls. Hip fractures mainly include femoral fractures and intertrochanteric fractures. In humans, the greater trochant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/11A61F5/00
Inventor 赵国如张其梁丁李慧奇宁运琨
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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