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

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...

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.

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