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A fall detection method

A detection method and real-time detection technology, applied in the field of sensing, can solve the problems of reducing the disability rate and death rate, and the inability to realize human fall detection

Inactive Publication Date: 2018-05-29
邱从波
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Studies have shown that a considerable number of elderly people over the age of 65 in my country have fallen, and the incidence of falls increases with age, so timely rescue of the elderly who have fallen will greatly reduce the risk of injury. Injury rate and mortality rate; human body fall detection is not yet possible

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Embodiment Construction

[0018] The technical solutions of the present invention will be further described below in conjunction with the embodiments and the accompanying drawings.

[0019] Such as figure 1 As shown, the embodiment of the present invention provides a fall detection method, including the following steps:

[0020] Step S1. Real-time detection of human body activity status information by a three-axis acceleration sensor to obtain three-axis acceleration data.

[0021] Step S2, calculating the magnitude vector value SVM based on the acceleration data obtained by the three-axis acceleration sensor.

[0022] Obtain the component values ​​in the three directions of X, Y, and Z from the three-axis acceleration sensor each time, and then calculate the difference according to the values ​​taken twice before and after; calculate the square value of the difference between the three components each time, that is, the SVM value , the calculation formula model is:

[0023] SVM=(X n -X n-1 ) 2 +...

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Abstract

The present invention discloses a falling detection method. The method comprises the following steps: the step S1, detecting human activity state information in real time through adoption of a triaxial accelerometer, and obtaining triaxial acceleration data; the step S2, obtaining an acceleration signal calculation amplitude vector value SVM based on the triaxial accelerometer; and the step S3, determining the current activity in a certain state through comparison of the SVM value with a preset threshold value, and detecting whether the falling phenomenon occurs or not according to the variation of states. Through adoption of the technical scheme of the invention, the human falling detection may be accurately realized.

Description

technical field [0001] The invention relates to the field of sensing technology, in particular to a fall detection method. Background technique [0002] As a part of human activities, falling is a major factor affecting human health, especially for patients and the elderly, fall detection is very important. Studies have shown that a considerable number of elderly people over the age of 65 in my country have fallen, and the incidence of falls increases with age, so timely rescue of the elderly who have fallen will greatly reduce the risk of injury. Residual rate and mortality rate; it is not yet possible to realize the fall detection of the human body. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for detecting falls of active personnel with abnormal safety. [0004] In order to solve the above problems, the present invention adopts the following technical solutions: [0005] Step S1. Real-time detect...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B21/04
CPCG08B21/043G08B21/0446
Inventor 邱从波赵升魏志敏
Owner 邱从波