The contents provide an intelligent monitoring system and method, and camera using the same. The intelligent monitoring method comprises the detection whether an object exists at first the reference signal is generated by analyzing the motion status of the object the backscattered wireless signal wave is reflected by the object with an incident wireless signal wave after that, the motion signal about the object status is obtained by analyzing the received backscattered wireless signal wave and by using the reference signal as the initial signal and, finally, there is an alarm if the motion detection signal is out of the default limits.本文提供一種智能監測系統與方法及使用其之攝影裝置。此智能監測方法首先確認物體是否存在;在物體存在時,即分析物體的移動現象而產生參考信號;此外,還對物體發出無線信號並接收無線信號經物體反射而傳回的反射後無線信號;之後再以參考信號來輔助分析反射後無線信號而取得對應於物體之變化的變化偵測信號;最後則在變化偵測信號超出預設標準時發出警訊。100‧‧‧信號處理單元110‧‧‧攝影單元130‧‧‧無線信號處理單元150、160‧‧‧物體150a、150b、150c、160a、160b、160c‧‧‧位置WS‧‧‧無線信號WS’、WS”‧‧‧反射後無線信號
