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Human body fall determining method and device

A judgment method and human body technology, applied in the field of smart wearables, can solve problems such as high detection rate and low false alarm rate, and achieve the effect of high judgment accuracy, high judgment accuracy, and direct and simple judgment

Inactive Publication Date: 2017-09-08
HANGZHOU CENTURY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the movement flexibility of these new wearable devices corresponding to the wearing position is high, which leads to higher complexity and diversity of human body movement data collected by motion sensors, and it is difficult to obtain high detection rate and low false alarm rate

Method used

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  • Human body fall determining method and device
  • Human body fall determining method and device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] see figure 1 , a human body fall determination method, the specific steps comprising:

[0031] (1) Collect the accelerations in the x-axis, y-axis, and z-axis directions of the human body, and set the acceleration thresholds in the x-axis, y-axis, and z-axis directions respectively;

[0032] (2) When the acceleration in the x-axis and y-axis directions increases suddenly and exceeds the corresponding acceleration thresholds respectively, compare the acceleration in the z-axis direction with the acceleration threshold in the z-axis direction;

[0033] (3) When the acceleration in the z-axis direction is less than the acceleration threshold in the z-axis direction, it is determined to be a falling behavior;

[0034] (4) Send out a fall alarm signal and notify the guardian in time after a fall occurs.

[0035] The present invention is based on the detection algorithm of the triaxial acceleration threshold, through the action of the triaxial acceleration, it is judged whe...

Embodiment 2

[0040] see Figure 2-4 , a human body fall judgment device 10, horizontally installed and sealed inside the sole, comprising a housing 1, a circuit board 2, a charging coil 4, a rechargeable lithium battery 5 are installed in the housing 1, and the charging coil 4 A spacer 3 is provided between the circuit board 2, the rechargeable lithium battery 5 is connected to the circuit board 2, and a human body fall judgment module is integrated in the circuit board 2, and the human body fall judgment module is used to judge the body fall according to the three-axis acceleration Compared with the preset acceleration threshold to determine whether there is a fall behavior. The device of the present invention is arranged on the sole of the shoe and judges the fall behavior through the human body fall judgment module, with a low misjudgment rate; and the rechargeable lithium battery is charged by wireless charging through the charging coil, so there is no need to remove the human body fal...

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PUM

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Abstract

The invention proposes a human body fall determining method, comprising the following steps: 1) acquiring the acceleration speeds in the axis-x direction, axis-y direction and axis-z direction of a human body and setting the acceleration speed threshold values in the axis-x direction, axis-y direction and axis-z direction; 2) when the acquired acceleration speeds in axis-x direction and axis-y direction see an increase drastically enough to exceed their corresponding threshold values, then, comparing the acceleration speed in the axis-z direction with the acceleration speed threshold value in the axis-z direction; and 3) when the acceleration speed in axis-z direction is smaller than the acceleration speed threshold value in the axis-z direction, determining the occurrence of a fall. According to the invention, the method is a detection algorithm based on three-axis acceleration threshold values, and through the actions on the three-axis acceleration speeds, it is possible to determine whether a fall occurs or not. The determining method is more direction and simpler and at the same time, the determining accuracy is high and the erroneous reporting rate is low.

Description

technical field [0001] The invention belongs to the technical field of smart wear, and in particular relates to a human body fall determination method and a human body fall determination device. Background technique [0002] Falls are one of the important factors that endanger the elderly and other special populations. Falls have become the number one cause of injury and death among the elderly. Timely fall detection and rescue can win precious time for treatment and rescue, and play a very important role in improving the independent living ability of the elderly, ensuring their health and improving the level of medical monitoring. [0003] At present, the intelligent module on the market is based on the algorithm of human body fall, which is mostly based on wearing at the waist or above the body, and using the acceleration change when falling to determine whether to fall. A small number of intelligent modules are placed on the soles of the feet, and the fall is determined...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/04G08B25/08G08B29/18H02J7/00
CPCG08B21/043G08B21/0446G08B25/08G08B29/185H02J7/025
Inventor 张伟波叶金刚朱爱芬
Owner HANGZHOU CENTURY CO LTD