Problem to be solved: to provide a water detecting apparatus, a moisture detecting system, a moisture detecting method and a water detection program capable of accurately detecting the presence of water in the object.A control unit for transmitting a transmission signal, which is a signal for prompting a response to a communication unit, to a communication unit for a wireless communication device whose characteristics are changed under the presence of water in the surroundingsUpon receiving a response signal from said wireless communication deviceA decision unit for determining presence or absence of moisture in the vicinity of the wireless communication device using the characteristics and initial characteristics of the transmitted signal corresponding to the response signalEquipped withThe control sectionThe characteristics of the transmission signal are sequentially changed from the initial characteristics to be repeatedly transmitted to the communication unit.Diagram【課題】対象体における水分の存在を正確に検知することができる水分検知装置、水分検知システム、水分検知方法および水分検知プログラムを提供する。【解決手段】周辺に水分が存在する環境下で特性が変化する無線通信デバイスに対して応答を促す信号である送信信号を通信部に送信させる制御部と、前記無線通信デバイスからの応答信号を受信した場合、該応答信号に対応する前記送信信号の特性と初期特性とを用いて前記無線通信デバイスの周辺における水分の有無を判定する判定部と、を備え、前記制御部は、前記送信信号の特性を前記初期特性から順次変化させて前記通信部に繰り返し送信させる。【選択図】図５
