| 摘要 |
<p>PURPOSE:To enable the growth state and the ecology of a culture fish to be automatically supervised regardless of day and night by making the output of an invertor as power source and recording a filmed image by an camera. CONSTITUTION:By driving the invertor 7, the output direct current of solar battery panels 5 constituting a direct current power source part and an accumulator 6 is converted to alternating circuit, the culture fish is filmed by the television camera 9 at the set time of a timer 10 and the filmed image of the camera 9 is recorded by a VTR. At that time, when the timer 10 is set 24 hours, the camera 9 is operated all day long and the filmed image of the culture fish is always obtained. When the timer 10 is set required hours from a desired time, the filmed image of the culture fish can be regularly obtained regardless of day and night. Thus the growth state and the ecology of the culture fish can be automatically supervised even when nobody is at the actual spot. Besides, because of using the solar battery panels 5, solar energy can be effectively utilized.</p> |
