| 摘要 |
<P>PROBLEM TO BE SOLVED: To automate and simplify a time correction after restarted power supply even if a power supply shutoff such as a service interruption causes a time deviation or the like of an electric timepiece. <P>SOLUTION: A photovoltaic power generation system comprises, as power converting means, a first counting part for counting time passage, an actuating power source therefor, and a transmission part for transmitting power generation data on a solar battery and first count data by the first counting part; and comprises, as displaying means, a reception part for receiving the power generation data and the first count data, a second counting part for counting time passage, a memory for storing second count data by the second counting part upon a shutoff of power supply to the displaying means, the electric timepiece, and a display part for displaying the power generation data, and displaying the time by the electric timepiece according to the first count data received by the reception part and the second count data stored in the memory after the shutoff of power supply to the displaying means is solved. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
