| 摘要 |
PROBLEM TO BE SOLVED: To prevent wrong pull-out of a communication cable, by indicating presence or absence of information communication in the communication cable.SOLUTION: A communication visualization system 10 has a wireless power feeding device 11 and a communication visualization device 12. The communication visualization device 12 has an antenna, a rectifier circuit, a signal detector, a switch, and a light-emitting circuit. The antenna receives sine waves radiated from the wireless power feeding device. The rectifier circuit outputs a drive power by rectifying the sine waves. The signal detector outputs a control signal by detecting a voltage from a magnetic field generated during communication of a LAN able 40. The switch supplies drive power to the light-emitting circuit by the control signal. The light-emitting circuit emits light by the drive power. Since the light-emitting circuit is lighted only when the LAN cable 40 is performing information communication, the LAN cable 40 can visually determine presence or absence of the information communication, and wrong pull-out of the LAN cable 40 can be prevented. |
