A projective capacitive type human body action detection system comprises a sensing pad and a monitoring module. The sensing pad comprises at least one sensing array unit and at least one control unit. The sensing array unit comprises a plurality of sensing electrodes arranged in an array. The control unit is electrically connected with these sensing electrodes to respectively proceed analog to digital conversion of the sensed capacitance detected periodically by the sensing electrodes, to generate a plurality of capacitance sensing values, which are subjected to a binarization calculation to obtain the binarization calculation result of each capacitance sensing value. The monitoring module receives and displays the plural capacitance sensing values and the binarization calculation results as a reference for judging the action of human body.一種投射電容式人體動作偵測系統,包含有一感測墊與一監控模組,該感測墊包含有至少一感應陣列單元與至少一控制單元,該感應陣列單元包含有陣列排列的複數感應電極,該控制單元電性連接該些感應電極以週期性地對從該些感應電極所偵測到的電容感應量分別進行類比-數位轉換以產生複數電容感應值,並對該複數電容感應值分別進行二值化運算以得到各電容感應值的二值化運算結果;該監控模組接收並顯示該複數電容感應值與二值化運算結果,作為判斷人體動作的參考。11‧‧‧感應陣列單元101‧‧‧第一感應陣列單元102‧‧‧第二感應陣列單元103‧‧‧第三感應陣列單元104‧‧‧第四感應陣列單元105‧‧‧第五感應陣列單元106‧‧‧第六感應陣列單元107‧‧‧第七感應陣列單元108‧‧‧第八感應陣列單元109‧‧‧第九感應陣列單元110‧‧‧第十感應陣列單元12‧‧‧控制單元13‧‧‧感應電極20‧‧‧監控模組21‧‧‧資料儲存暨運算處理單元22‧‧‧人機介面23‧‧‧匯流排50‧‧‧雲端伺服器
