Patent ID: 8052612

Claim:
A sleep respiration monitoring system for measuring sleep quality of a testee, the sleep respiration monitoring system comprising: a sensing fabric comprising at least one sensing fabric area, an electric characteristic of the sensing fabric being changed in response to a respiration status or an extent of body movement of the testee; a detecting circuit, coupled to the at least one sensing fabric area of the sensing fabric, the detecting circuit comprising a bridge circuit, and the bridge circuit being used for detecting the change of equivalent resistance of the at least one sensing fabric area of the sensing fabric so as to output an output signal accordingly; and a judging and analysis circuit, coupled to the detecting circuit, performing signal processing, signal collection, signal classification and judging to the output signal, so as to determine whether the testee is lying on the sensing fabric and to judge sleep quality of the testee accordingly, wherein the change of the equivalent resistance of the at least one sensing fabric area of the sensing fabric is caused by whether the testee is lying on the at least one sensing fabric area of the sensing fabric, wherein the at least one sensing fabric area comprises: at least two wrapped conductive yarns respectively formed by wrapping at least a conductive fiber around an elastic yarn, wherein when at least one of the wrapped conductive yarns is stretched or pressed by the testee, the resistance of the sensing fabric changes accordingly; and at least two low resistance conductive fabrics intersecting and directly and electrically connecting the at least two wrapped conductive yarns for making the bridge circuit accurately detect the change of the equivalent resistance of the sensing fabric according to currents flowing through different locations on the sensing fabric.