| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power supply apparatus, as a power supply apparatus in traffic control system device, that independently and stably supplies power without requiring power supply from a power distribution network. <P>SOLUTION: The power supply apparatus includes a vibration power-generation part that is mounted onto a column or an arm for fixing a traffic control system device in order to supply power to the traffic control system device and generates power by vibration of the column or the arm, a power-storage part for storing the power generated by the vibration power-generation part, and a power supply part for supplying the power generated by the vibration power-generation part and/or the power stored in the power-storage part to the traffic control system device. <P>COPYRIGHT: (C)2011,JPO&INPIT |
