Pre-collision fall detection method and device

Abstract

The invention discloses a pre-collision fall detection method and device. The method includes the following steps that: whether a fall detection index time sequence is auto-correlated is judged; if the fall detection index time sequence is not auto-correlated, the fall detection index time sequence of a detected individual is adopted to build a statistical process control model; if the fall detection index time sequence is auto-correlated, an ARIMA (Autoregressive Integrated Moving Average Model) model is adopted to process the fall detection index time sequence, and non-auto-correlated data are outputted; a statistical process control model is built according to the non-auto-correlated data which are obtained after the ARIMA model performs processing; and whether a human body falls is judged according to the statistical process control model, if it is judged that the human body falls, a fall alarm is emitted. According to the pre-collision fall detection method and device provided by the technical schemes of the invention adopted, the statistical process control model is built at first, and the model is adopted to judge whether the human body falls, and the differences of the fall of different users is considered, and the accuracy of pre-collision fall detection can be improved, and the occurrence of fall can be fast detected.

Description

technical field [0001] The invention relates to the field of fall state detection, in particular to a fall detection method and device before collision. Background technique [0002] Falls have always been an important problem threatening the health of the elderly. According to the report of the World Health Organization (WHO), nearly one-third of the elderly over the age of 65 experience at least one fall every year. In my country, falls are the primary cause of injury for the elderly. It is estimated that more than 40 million elderly people in my country experience falls every year. Correspondingly, fall detection is an effective passive fall prevention method, which can enable the faller to receive timely medical assistance without human intervention, or activate fall prevention devices (such as inflatable hip protectors) to avoid injuries caused by falls and collisions . [0003] There are many methods of fall detection, which can be divided into pre-collision and pos...

AI Technical Summary

Problems solved by technology

[0008] The main purpose of the present invention is to provide a fall detection method and device before a collision, which is used to solve the problem that the existing solutions cannot accurately complete the fall detection and alarm according to individual differences before the human body falls and touches the ground

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