PROBLEM TO BE SOLVED: To detect a breathing state of a subject in a non-contact manner with a small configuration inconspicuous to the subject without giving discomfort to the subject.SOLUTION: A biological signal detection device comprises: sensor means which detects, without contact with a subject, an inspection signal whose signal intensity varies periodically in accordance with the cycle of breathing of the subject and outputs the inspection signal measurement means which measures a measured value of the signal intensity on the basis of the inspection signal from the sensor means arithmetic means for performing fast Fourier transformation on the basis of the measured value measured by the measurement means and processing means which obtains a result of inspection of the breathing condition of the subject on the basis of a result of calculation by the arithmetic means.SELECTED DRAWING: Figure 15COPYRIGHT: (C)2019,JPO&INPIT【課題】被検者に目立たない小型な構成により被検者に違和感を与えることなく、被検者の呼吸の状態を被検者に非接触で検出する。【解決手段】本生体信号検出装置は、被検者の呼吸の周期に応じて信号強度が周期的に変化する検査信号を、被験者に非接触で生成して出力するセンサ手段と、センサ手段からの検査信号に基づいて信号強度の測定値を計測する計測手段と、計測手段が計測した測定値に基づき高速フーリエ変換を行う演算手段と、演算手段による演算結果に基づいて、被検者の呼吸の状態の検査結果を得る処理手段とを備える。【選択図】図15
