BIOLOGICAL SIGNAL PROCESSOR FOR DETERMINING GENERATION OF CYCLICAL BIOLOGICAL SIGNAL BY REPRESENTATIVE VALUE OF ACCELERATION COMPONENT, PROGRAM, AND METHOD
To provide a biological signal processor capable of determining generation of a cyclical biological signal without depending on frequency analysis in determining generation of a biological signal.SOLUTION: A biological signal processor for processing an input signal that can include a biological signal includes: acceleration component generation means for generating acceleration component data on the input signal； representative value calculation means for calculating a representative value related to a degree of deviation of data in a predetermined time section in the acceleration component data； and signal generation determination means for determining generation of a cyclical biological signal attributed to a repetitive motion of a living body based on the cyclicity of the calculated representative value. Here, it is also preferable that the signal generation determination means calculates a peak position when the representative value varies beyond a predetermined range, and determines generation of the cyclical biological signal when a time interval between adjacent peak positions is within a predetermined time range.SELECTED DRAWING: Figure 1【課題】生体信号発生の判定において、周波数分析に頼ることなく、周期的生体信号の発生を判定可能な生体信号処理装置を提供する。【解決手段】本装置は、生体信号を含み得る入力信号を処理する生体信号処理装置であって、入力信号の加速度成分データを生成する加速度成分生成手段と、加速度成分データにおける所定時間区間でのデータの偏り具合に係る代表値を算出する代表値算出手段と、算出された代表値の周期性に基づいて、生体の繰り返し運動に起因する周期的生体信号の発生を判定する信号発生判定手段とを有する。ここで、この信号発生判定手段は、代表値が所定範囲を超えて変動した際のピーク位置を算出し、隣接する当該ピーク位置の時間間隔が所定時間範囲内である場合に、周期的生体信号が発生したと判定することも好ましい。【選択図】図１
