| 摘要 |
PURPOSE:To shorten the distance between a wireless and a photodetection part and to improve the reliance of transmission by separating a photoelectric element which is the photodetection part receiving a light wireless signal from a receiver controlling a load. CONSTITUTION:In a wireless system having a satellite receiver 2 which collectively receives and processes many wireless signals from a wireless transmitter 1, a photoelectric element which photodetects the light wireless signals consisting of address data, control data, etc. from the wireless transmitter 1, a tuning circuit 4 for the carrier detection of the light wireless signal outputted from the photoelectric element and a base band conversion part 5 converting the output of the tuning circuit into a base band signal are provided in the satellite receiver 2. And the base band signal is connected by a signal line 6 which is wire-connected to the satellite receiver 2, and provides a receiver 7 having a specific address, which receives the base band signal from the satellite receiver 2 so that the transmission distance between the wireless receiver 1 and the photoelectric element can be shortened. |
