| 摘要 |
PROBLEM TO BE SOLVED: To reduce the energy in various sensors with a simple configuration. SOLUTION: An oscillation circuit 102 is used to cause a current to flow to a diode 205 in a photo interrupt sensor 203 at intervals of a prescribed time, and the turn-on/off state of the photo interrupt sensor 203 in this period is kept, and thus, the turn-on/off state of the photo interrupt sensor 203 is monitored. |
