On-bed and off-bed monitoring system for the elderly and monitoring method

Abstract

The invention provides an on-bed and off-bed monitoring system for the elderly, and the on-bed and off-bed monitoring system for the elderly comprises a Doppler sensor, a processing part, a communication part and a judgment part, and the judgment part is used for judging whether the elderly are in an on-bed state or a off-bed state based on the existence states of a body movement frequency band and a breathing frequency band. The method comprises the following steps: acquiring human body biological information; calculating continuous body movement frequency bands and breathing frequency bands based on the fixed frequency sampling data; S3, judging whether there is body movement; judging the body movement type, if the body movement type is on-bed body movement, the patient is judged in an on-bed state after the duration of on-bed body movement exceeds a first time threshold value, and breathing is detected; and if the body movement type is off-bed body movement, the patient is judged in an off-bed state after the duration of off-bed body movement exceeds a second time threshold, and no breathing is detected. The invention, according to the time change of the detection output of the Doppler sensor, can judge whether the to-be-nursed object is on-bed or off-bed.

Description

technical field [0001] The invention relates to the field of microwave Doppler (hereinafter referred to as Doppler) sensing technology, in particular to a monitoring system and a monitoring method for realizing bed implantation and getting out of bed of the elderly by using a Doppler sensor. Background technique [0002] With the increasing aging of our society, more and more elderly people live in nursing homes and receive professional nursing care for the elderly. Therefore, it is necessary to assist caregivers to take care of the elderly by means of an electronic monitoring system. [0003] At present, the mainstream electronic monitoring equipment on the market uses cushion sensors, monitors (cameras), etc., but there are also a series of problems such as contact with care objects, equipment maintenance, affecting privacy, and high costs. Therefore, some high-end nursing homes , put forward a solution to monitor the elderly with the help of Doppler sensing technology. C...

AI Technical Summary

Problems solved by technology

[0002] With the increasing aging of our society, more and more elderly people live in nursing homes and receive professional nursing care for the elderly. Therefore, it is necessary to use the electronic monitoring system to assist the caregivers in the care of the elderly.

[0003] At present, the mainstream electronic monitoring equipment on the market uses cushion sensors, monitors (cameras), etc., but there are also a series of problems such as contact with care objects, equipment maintenance, affecting privacy, and high costs. Therefore, some high-end nursing homes , proposed a solution to monitor the elderly with the help of Doppler sensing technology. Compared with other electronic monitoring equipment, the microwave Doppler sensor has high precision, but there is a problem that the detection signal does not directly correspond to the actual movement.

For example, the seat cushion sensor is detected by people stepping on the seat cushion sensor, that is, the movement of the person and the detection are 1:1 corresponding, while the Doppler sensor can detect the presence of the detection signal itself, but when the detection disappears, it cannot Clearly differentiate, for example, out-of-bed actions from detection cessation due to death, etc.

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