| 摘要 |
<p>This battery signage system (200) is provided with a battery unit (10), a first housing unit (211) capable of housing a display device (2), a second housing unit (212) housing the battery unit (10), a fan for cooling the first housing unit (211), and a temperature sensor for measuring the temperature inside the first housing unit (211). The battery unit (10) is provided with a battery which stores power generated by a solar cell, a PMU which, in response to the generation state of the solar cell and the operation state of the display device, is capable of controlling power storage to the battery and power supply to the display device (2), and an external fan control AC/DC conversion circuit which drives the aforementioned fan on the basis of temperature information from the temperature sensor.</p> |
