The central processing unit and the central processing method of the present invention provide a notification in which permission information indicating whether or not to report a predetermined state of a monitored person detected and notified by a sensor device to the outside is associated with the predetermined state. Permission information is stored, and when the predetermined state detected and notified by the sensor device is received from the sensor device, the received predetermined state is notified to the outside based on the stored notification permission information. The monitored person monitoring system of the present invention uses such a monitored person monitoring apparatus.本発明の中央処理装置および中央処理方法は、センサ装置で検知され通報された被監視者における所定の状態を外部へ通報するか否かを表す許否情報と前記所定の状態とを対応付けた通報許否情報を記憶し、前記センサ装置で検知され通報された所定の状態を前記センサ装置から受信した場合に、前記受信した所定の状態を前記記憶された通報許否情報に基づいて外部へ通報する。本発明の被監視者監視システムは、このような被監視者監視装置を用いる。