| 摘要 |
PROBLEM TO BE SOLVED: To provide a more effective system for repulsing birds/harmful animals for protecting farm products from damage in view of the fact that although various means for repulsing them including electric fences and explosion scarecrows have been tried, the effects are temporary, being nonsustainable from experience and some means such as an explosion scarecrow may trouble outsiders as well. SOLUTION: The system for protecting the securing area of a farming field from birds/harmful animals has the following mechanism: A plurality of support poles and auxiliary support poles around the area set upright, the support poles are each mounted with a sensor (e.g. infrared sensor), for a place ineffective for sensor such as an orchard, wires are set up around the place and limit switches are set on the wire ends, thereby ensuring a detection signal to be given out when birds or harmful animals try to intrude, and the signal acts, via a relay, to ignite a heater, at the same time actuate a motor to turn a firework launching cylindrical port to the intruding direction of the birds or harmful animals, and simultaneously with stopping the tip of the cylinder against the intruding direction, another motor is actuated and a firework is taken out of a relevant housing drum and the fuse wire of the firework is guided to the heater to exprode the firework, thus repulsing the birds or harmful animals with the resulting sound and smell. COPYRIGHT: (C)2004,JPO&NCIPI
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