The present invention is related to a biological information acquisition device. Wherein, a plurality of candidate heartbeat position acquiring parts (38a~38t) give characteristics on the basis of the defined specific shape to each waveform contained in the vibration signals of the vibration sensor (VS), so as to acquire a series of candidate heartbeat positions. The frequency distribution calculation part (39) is subjected to calculate the frequency distribution of heartbeat interval and the frequency distribution of heartbeat interval change for each of the series of candidate heartbeat positions. The distribution ratio calculation part (40) is subjected to respectively calculate a distribution ratio of the most frequent distribution to the total frequency, for a plurality of calculated frequency distributions. The selection part (41) is subjected to use a plurality of calculated distribution ratios as an evaluation index of the accuracy of said series of candidate heartbeat positions, so as to select one of said acquired series of candidate heartbeat positions.本發明關於一種生物資訊取得裝置。其中,複數個候選摶動位置提取部(38a~38t)根據規定的特定形狀對振動感測器(VS)的振動信號所含的各波形賦予特徵,從而提取一連串的候選摶動位置。次數分布計算部(39)係對於上述提取出的各個一連串的候選摶動位置,計算摶動間隔的次數分布、摶動間隔變動的次數分布。分布比率計算部(40)係對於計算出的複數個次數分布分別計算最頻分布相對於總次數的分布比率。選定部(41)係以計算出的複數個分布比率作為示出上述一連串的候選摶動位置之正確度的評價指標,來選定上述提取出的複數個一連串的候選摶動位置中的一個。31‧‧‧感壓管35‧‧‧感測器本體36‧‧‧麥克風37‧‧‧前處理部38a~38t‧‧‧候選摶動位置提取部(候選提取單元)39‧‧‧次數分布計算部(分布計算單元)40‧‧‧分布比率計算部(分布比率計算單元)41‧‧‧選定部(選定單元)42‧‧‧波動計算部(波動計算單元)43‧‧‧壓力度計算部(壓力度計算單元)44‧‧‧存儲部45‧‧‧信號輸出部46‧‧‧USB纜線50‧‧‧平板終端51‧‧‧顯示部VS‧‧‧振動感測器(檢測單元)
