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A fall recognition method and device, and user equipment

A recognition method and user technology, applied in neural learning methods, character and pattern recognition, applications, etc., can solve the problems of low fall detection accuracy and non-universality, and improve real-time performance, accuracy, and real-time performance Good, the effect of improving the matching degree

Active Publication Date: 2020-06-16
SHENZHEN INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Threshold method is simple and straightforward, but often because the threshold selected subjectively is not universal for various fall situations, the accuracy of fall detection is not high

Method used

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  • A fall recognition method and device, and user equipment
  • A fall recognition method and device, and user equipment
  • A fall recognition method and device, and user equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] see figure 1 , figure 1 It is a schematic flowchart of a fall recognition method disclosed in an embodiment of the present invention. Such as figure 1 As shown, the fall recognition method may include the following steps:

[0058] 101. Obtain human body motion signals related to the falling action in real time. The device for collecting human motion signals is the motion capture system X-Sens, wherein the human motion signals include human physical motion acceleration, angular velocity, Euler angle and other signals.

[0059] 102. Input the human body motion signal related to the fall action into the strong classifier based on the BP_Adaboost algorithm model for analysis, and judge whether the user is about to fall according to the human body motion signal related to the fall action;

[0060] The human body motion signal data is collected in real time, and the collected human body motion signal data is input into the strong classifier in real time, and then the stro...

Embodiment 2

[0069] see figure 2 , figure 2 It is a schematic flowchart of another fall recognition method disclosed in the embodiment of the present invention. Such as figure 2 As shown, the fall recognition method may include the following steps:

[0070] 201. Establish a strong classifier based on the algorithm model of BP_Adaboost;

[0071] Establish a strong classifier based on the algorithm model of BP_Adaboost, and the object of the acquired human motion signal is the user. First of all, it is necessary to collect a certain amount of human body motion signal data. The collection device is the motion capture system X-Sens. First, the data is denoised, and then PCA is used to reduce the dimension of the data. Its goal is to use some kind of linear projection , to map the high-dimensional data collected from human motion signals to a low-dimensional space, and expect the variance of the data to be the largest in the projected dimension, so as to use fewer data dimensions while r...

Embodiment 3

[0095] see Figure 4 , Figure 4 It is a structural schematic diagram of a fall recognition device disclosed in an embodiment of the present invention. Such as Figure 4 As shown, the fall recognition device may include:

[0096] The acquisition module 401 is used to acquire human body motion signals related to falling movements in real time; specifically, the device for collecting human body motion signals is the motion capture system X-Sens, wherein the human body motion signals include human body physical motion acceleration, angular velocity, Euler angle Wait for the signal.

[0097] The analysis module 402 is used to input the human body motion signal related to the falling action into the strong classifier based on the BP_Adaboost algorithm model for analysis, and judge whether the user is about to fall according to the human body motion signal related to the falling action, that is, collect the human body motion signal data in real time , and input the collected hum...

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Abstract

The embodiment of the present invention discloses a fall recognition method and device, and user equipment. The method is to obtain the human body motion signal related to the fall action in real time, and input the human body motion signal related to the fall action to the strong classification based on the algorithm model of BP_Adaboost According to the human body motion signal related to the falling action, it is judged whether the user is about to fall, and if it is judged that the user is about to fall, a corresponding decision is made to protect the user from falling. It is characterized by applying the efficient and precise advantages of intelligent algorithms to wearable fall airbag protection devices. The beneficial effect is to improve the matching degree of fall detection algorithms and corresponding hardware platforms, and to improve the real-time detection of fall airbag protection systems. and accuracy, thereby improving the accuracy of fall airbag protection recognition.

Description

technical field [0001] The present invention relates to the technical field of smart devices, in particular to a fall recognition method and device, and user equipment. Background technique [0002] With the increasingly prominent phenomenon of population aging, and due to the degeneration of muscle ability of the elderly, the reduction of reaction agility, the weakening of balance ability, and the influence of their own diseases, they become people who are prone to falls. However, fall injuries not only threaten their lives, but also increase their medical expenses and leave a psychological shadow, reducing their mobility and deteriorating their health. [0003] A kind of device about fall protection arises at the historic moment. At present, fall protection devices for the elderly have begun to appear on the market. Due to the large market demand and the ease of carrying around, they are favored by investors and consumers. High-precision monitoring is the basis of a fall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/11G06K9/62G06N3/08
CPCA61B5/1117A61B5/1121A61B5/6802G06N3/084A61B5/7275G06F18/2148G06F18/2135G06F18/24
Inventor 梁升云赵国如林颖蕾
Owner SHENZHEN INST OF ADVANCED TECH