非接觸式生命徵象監測系統

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

105130608

專利證號

I 609672

專利獲證名稱

非接觸式生命徵象監測系統

專利所屬機關 (申請機關)

國立中山大學

獲證日期

2018/01/01

技術說明

一種基於自我及交互注入鎖定雷達之非接觸式生命徵象監測系統，其透過兩個具有不同增益值之天線朝向一生物體的同一側發射訊號，然後這兩個不同增益天線收到此生物體在隨機移動下兩個不同反射訊號，其中一反射訊號經過振幅與相位的調整使此兩反射訊號具有振幅相等且相位相反的身體移動都普勒成分，以及振幅不相等的生命徵象都普勒成分，因此能藉由該兩反射訊號之間的關係即時抵銷該生物體的隨機移動效應而偵測出正確的生命徵象訊號。 A non-contact vital sign monitoring system based on a self- and mutually injection-locked radar transmits the signals to the same side of a biological object with two antennas of different gains. Then, the two different gain antennas receive two signals reflected by the biological object with random movement, wherein one of the two reflected signals is adjusted in magnitude and phase to obtain that the Doppler components of the two reflected signals due to random body movement are of equal amplitude and out of phase, while the Doppler components of the two reflected signals due to vital sign movement are not equal in amplitude. Therefore, according to this relation between the two reflected signals, the random body movement effect can be cancelled in real time to yield accurate vital sign signals of the biological object.

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