PROBLEM TO BE SOLVED: To provide a pulse detection method capable of accurately and stably acquiring a pulse of a person to be measured and capable of detecting a pulse wave in real time while reducing a burden of data processing, and to provide a pulse detection system using the pulse detection method.SOLUTION: There is provided a pulse detection method for detecting a pulse of a person to be measured from an optically detected pulse wave signal. A frequency of a body motion signal indicating a motion of a body of the person to be measured is acquired from an overlapping degree of the body motion signal in which the phase is shifted and the original body motion signal, and the frequency of the body motion signal is removed from a frequency analysis result of the pulse wave signal. A pulse detection system includes a pulse wave detection unit 10 mounted on the person to be measured for optically detecting a pulse wave signal, and a body motion detection unit 31 mounted on the upper body of the person to be measured for detecting a body motion signal of the person to be measured by an acceleration sensor, and detects the pulse of the person to be measured by using any one of the pulse detection methods disclosed in the present invention.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】被測定者の脈拍を高精度で安定して取得できるとともに、データ処理の負荷を小さくとしてリアルタイムでの脈波検出を可能とする脈拍検出方法と、この脈拍検出方法を用いた脈拍検出システムとを提供する。【解決手段】光学的に検出された脈波信号から被測定者の脈拍を検出する脈拍検出方法であって、前記被測定者の体の動きを表す体動信号の周波数を、位相をシフトさせた前記体動信号と元の前記体動信号との重なり度合いから求め、前記脈波信号の周波数解析結果から前記体動信号の周波数を除去する。また、脈拍検出システムは、被測定者に装着され、光学的に脈波信号を検知する脈波検知部１０と、前記被測定者の上体に装着され、加速度センサーにより前記被測定者の体動信号を検知する体動検知部３１とを備え、本願で開示するいずれかの脈拍検出方法を用いて、前記被測定者の脈拍を検出する。【選択図】図１
