The monitored person monitoring system of the present invention includes one or a plurality of operation receiving devices that receive a predetermined operation, a plurality of sensor devices that detect a predetermined action of the monitored person, and the predetermined operation received by the operation receiving device. A central processing unit that executes predetermined processing corresponding to an operation reported through the sensor device and manages detected behavior information related to the predetermined behavior reported from the sensor device. When receiving the predetermined operation, the operation receiving apparatus and the method according to the present invention are configured so that the communication signal for notifying that the predetermined operation has been received is in order according to the priority until the communication is successful. Are sequentially transmitted to the plurality of sensor devices.本発明の被監視者監視システムは、所定の操作を受け付ける１または複数の操作受付装置と、被監視者における所定の行動を検知する複数のセンサ装置と、前記操作受付装置で受け付けた前記所定の操作を前記センサ装置を介して通報された場合にそれに対応する所定の処理を実行し、前記センサ装置から通報された前記所定の行動に関する検知行動情報を管理する中央処理装置とを備える。本発明の操作受付装置および該方法は、前記所定の操作を受け付けた場合に、前記所定の操作を受け付けた旨を通報するための通信信号を、通信が成功するまで、優先度に従った順番で順次に前記複数のセンサ装置へ送信する。
