CONTROLLER, DEVICE, CONTROL METHOD, AND PROGRAM

To reduce the possibility that a device is remotely operated from a location where the device cannot be seen.SOLUTION: A controller 1 wirelessly transmits a transmission signal using infrared rays as a medium to a device 2 that executes a specific operation when a specific condition is met. The controller 1 includes an operation portion 3 that accepts operation input from the outside, a transmission portion 11 that changes the state from a standby state to a command state when the operating portion 3 receives one operation input, and transmits a first infrared signal S11 as a transmission signal, and a receiving unit 15 that receives a response signal S2 including key data transmitted from the device 2 in response to the first infrared signal S11. In the command state, the transmission portion 11 transmits a second infrared signal S12 based on the received key data as a transmission signal. The specific condition is a condition regarding reception of the first infrared signal S11 and the second infrared signal S12 in the device 2. The first infrared signal S11 and the second infrared signal S12 include mutually different pieces of data.SELECTED DRAWING: Figure 1 【課題】機器を視認できない場所から遠隔操作される可能性を低減すること。【解決手段】コントローラ１は、特定の条件を満たすと特定動作を実行する機器２に、赤外線を媒体とする送信信号を無線で送信する。コントローラ１は、外部から操作入力を受け付ける操作部３と、操作部３にて操作入力を１回受け付けると、待機状態から指令状態となり、第１の赤外線信号Ｓ１１を送信信号として送信する送信部１１と、第１の赤外線信号Ｓ１１に対して機器２から送信される鍵データを含む応答信号Ｓ２を受信する受信部１５と、を備える。送信部１１は、指令状態において、受信した鍵データに基づく第２の赤外線信号Ｓ１２を送信信号として送信する。特定の条件は、機器２における第１の赤外線信号Ｓ１１、及び第２の赤外線信号Ｓ１２の受信に関する条件である。第１の赤外線信号Ｓ１１と第２の赤外線信号Ｓ１２とは、互いに異なるデータを含む。【選択図】図１