| Summary: | 碩士 === 國立臺灣科技大學 === 電子工程系 === 107 === Pulse rate and breathing rate are considered important vital signs. Some studies
have shown that a rest heart rate faster than 90 bpm (beats per minute) or abnormal
heartbeat will easily lead to some heart disease. Sleep apnea, airway obstruction, or sudden infant death are closely related to breathing behavior. For the subject, multiple vital signs monitoring facilitates timely and effective treatment. Moreover, a wrong on bed position will easily cause damage to body organs or airway obstruction.
In the past, most of the vital signs were measured through contact measuring
equipment. These electrode patches or straps were prone to skin irritation or discomfort. On the contrary, the non-contact measuring equipment has high comfort and long-term monitoring, so it’s suitable for patients, infants or the elderly.
However, most researches only discussed the vital signs monitoring under the
condition of supine, rarely focuses on different on bed positions. Therefore, we try to construct vital signs and on bed position monitoring system based on a camera and an embedded platform which can suitable for different kinds of bed positions.
Experiments perform the accuracy of the pulse signal, breathing signal, roll-over
situation and on-bed position are 96.40%, 95.16%, 95.75% and 96.00% without
covering quilt. In the case of covering with quilt are 97.19%, 93.30%, 91.25% and
83.13%. The experimental results convey that this thesis successfully construct a non contact vital signs and activity monitoring system that can be used for health care based on a camera and an embedded system, which can be able to measure vital signs with difference on bed position in the case of covering quilt and covering without quilt in a reality environment.
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