| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply which makes it unnecessary to replace the battery of a light emitting module attached to a sensor to monitor the inside of a power transformer booth in a user's building to realize unattended monitoring, also eliminating power supply wiring in the booth to simplify the installation. SOLUTION: In a power supply transformer booth 100, a monitor 500 converts electric energy into light to irradiate a light emitting module 400. The light emitting module 400 converts the received light from the monitor 500 into electric energy to supply power.
|
