safety monitoring device

Abstract

PROBLEM TO BE SOLVED: To provide a safety monitoring device which eliminates drawbacks in a conventional safety monitoring device such as difficulty in confirming safety and inability to detect abnormality in health condition of a subject under the circumstances without accompanying a large body motion like a state of watching TV for a long time, etc. SOLUTION: This safety monitoring device is provided with a microwave Doppler sensor, so that it can calculate the body motion count and respiratory rate of a subject by using a microwave Doppler shift signal output by the microwave Doppler sensor, and then it can monitor the safety of the subject based upon a safety indicator pattern which is a combination of these two factors. Thus, it enables the confirmation of the safety under the circumstances without accompanying the large body motion while enabling detection of the subject's condition.

Description

technical field [0001] The present invention relates to a safety monitoring device which detects the daily living conditions and abnormalities in the health status of people living alone such as elderly people living alone, and monitors the overall physical status. Background technique [0002] In recent years, the social structure has become more complicated, and the number of people living alone has increased, such as those who are single or students who live alone in a place convenient to school. In addition, as society ages, so-called elderly people living alone are also increasing. The so-called elderly living alone refers to the elderly who have to live alone for some reason. [0003] If you are a relatively young student or a single person, you have more opportunities to contact others when you go to school, go to work, or on the way to school or work, while elderly people living alone have few reasons such as lack of contact within the family. A person who does not...

AI Technical Summary

Problems solved by technology

[0013] The prior art shown in Patent Document 1 can detect if the person in the residence is in a moving state, but cannot detect the change in appearance and the state of health of the person when there is little movement of the person.

That is, the infrared rays produced by the people can be detected by the infrared sensors 201a-201c arranged in each room and the activities of the people can be deduced by analogy. When there is less activity such as watching TV or reading a book, it is impossible to detect the deterioration of appearance and the deterioration of appearance during sleep

In addition, since the infrared sensor is used, it is impossible to detect changes in a person's health status that would not appear in the person's movements, for example, changes in breathing speed up or cessation.

[0014] Therefore, in the prior art shown in Patent Document 1, there is a problem that only the change in the appearance of the person accompanied by the large movement of the person's movement and fall can be detected, and it is impossible to detect the so-called physical condition that often occurs at the initial stage of the change in the health state of the person. Therefore, it is difficult to comprehensively monitor the living conditions of people living alone, especially elderly people living alone.

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