Wearable device featuring detection of tightness changes improving the stability and reliability in calculating the heart rate without affecting the comfort of wearing due to the adjustment of wearing tightness
A wearable device capable of detecting tightness changes includes an annular belt which can tightly or loosely surround a body, a carrier attached to the annular belt, a light sensation unit sensing heartbeat changes of an animal by means of light and sending out a sensing signal, a metal member disposed in the carrier, and a control module. The metal member is capable of generating electrical induction with a skin surface and movable between a proximal position adjacent to or away from the skin surface and a first distant position. The control module reads a tightness coordination signal or a first response signal when the metal member is located at the proximal position or the distant position, then calculates a measurement value related to the heart rate according to the sensing signal, and calculates a first heart rate value or generates a warning message based on this measurement value according to a first compensation mechanism corresponding to the first response signal. In this way, the stability and reliability in calculating the heart rate are improved without affecting the comfort of wearing due to the adjustment of wearing tightness.一種可偵測鬆緊變化的穿戴式裝置,包含可鬆緊地環繞一個軀體的一條環帶、依附在該環帶上的一個載體、透過光感測動物的心跳變化且送出一個感測信號一個光感單元、設置在該載體的一個金屬件,及一個控制模組。該金屬件能夠與該皮膚表層產生電感應且鄰近或遠離該皮膚表層的一個近端位置與一個第一遠端位置間移動。該控制模組在該金屬件位於該近端位置或該遠端位置時讀取一個緊配合信號或一個第一回應信號,然後,根據該感測信號計算出與心率相關的一個測量值,及根據對應該第一回應信號的一個第一補償機制,以該測量值為基礎,計算出一個第一心率值,或產生一個警示訊息。藉此,在不因為調整穿載鬆緊度而影響穿載舒適性的情形下,提升計算心率時的穩定性與可靠性。11‧‧‧皮膚表層2‧‧‧環帶3‧‧‧載體31‧‧‧內面5‧‧‧金屬件L1‧‧‧近端位置L2‧‧‧第一遠端位置L3‧‧‧第二遠端位置
