PROBLEM TO BE SOLVED: To provide a biological information detector which can detect information on living bodies including information on activities of living bodies.SOLUTION: A biological information detector 1 includes: a detection system 2 for sending a transmission wave made of continuous waves with modulated frequencies to a target object and detecting distance spectrum intensity data showing the intensity in time sequence according to a distance to the object based on the difference in the frequency between the transmission wave and a reflected wave from the object； calculation unit 30 for calculating differential data on the difference between the current distance spectrum intensity data and the previous distance spectrum intensity data, the differential data being obtained on a distance-by-distance basis based on the result of detection of the detection system 2； and a normalization processing unit 37 for generating activity information 37a obtained by normalizing the differential data based on a minimum noise floor determined from the result of detection of the detection system 2.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2020,JPO&INPIT【課題】生体の活動情報を含む生体に関する情報を検出することができる生体情報検出装置を提供する。【解決手段】生体情報検出装置１は、周波数変調した連続波による送信波を対象物に送信し、送信波と対象物からの反射波との周波数差に基づいて、対象物までの距離毎の強度を時系列的に示す距離スペクトル強度データを検出する検出系２と、検出系２の検出結果に基づいて、現在の距離スペクトル強度データとその１つ前の距離スペクトル強度データとの差を前記距離毎に求めた差分データを算出する算出部３０と、差分データを検出系２の検出結果から求めた最小ノイズフロアに基づいて正規化した活動情報３７ａを生成する正規化処理部３７とを備える。【選択図】図２
