PROBLEM TO BE SOLVED: To solve the problem of a conventional monitoring system, in which a drastic change of an existing facility is required and it is difficult to monitor an operation state of the facility.SOLUTION: The wireless monitoring system comprises: at least one wireless sensor terminal which is attached to an object and includes power generation means for converting physical energy generated at the time of activation of the object into electric energy, and terminal side transmission means which operates by the electric energy output by the power generation means to transmit predetermined data and a wireless monitoring device which includes monitoring side reception means for receiving the predetermined data transmitted from the terminal side transmission means, and monitoring means for monitoring a cycle in which the monitoring side reception means receives the predetermined data to discriminate an operation state of the object.COPYRIGHT: (C)2014,JPO&INPIT【課題】従来の監視システムは、既存の設備の大きな変更が求められたり、設備の作動状態を監視することが難しかった。【解決手段】本発明では、対象物の作動時に生じる物理的なエネルギーを電気エネルギーに変換する発電手段と、前記発電手段が出力する電気エネルギーにより動作し、所定のデータを送信する端末側送信手段とを有し、前記対象物に取り付けられる少なくとも1つの無線センサ端末と、前記端末側送信手段から送信される前記所定のデータを受信する監視側受信手段と、前記監視側受信手段が前記所定のデータを受信する周期を監視して、前記対象物の作動状態を判別する監視手段とを有する無線監視装置とを設けたことを特徴とする。【選択図】図5