| 摘要 |
PURPOSE:To close the insect net door of a building when a possibility of coming-in of insects to the inside of housing is judged to be high. CONSTITUTION:Data on the bright intensities measured by an indoor photometer A2 are compared with those by an outdoor photometer B3 in CPU 5. When the bright intensity in indoor is higher than that in outdoor, it is judged that the possibility of coming-in of moths is high, and a netted door 4 is closed by a motor 13. The net door 4 can thus be controllably opened or closed with very high efficiency. |
