| 摘要 |
<p>An alarm device used for driving away birds and animals, comprising: a radio transmitter module (1), a voltage regulator circuit (7), and a power inverter circuit (6). The radio transmitter module (1) transmits a radio signal to a radio receiver module (2). The radio receiver module (2) transmits the radio signal to a PC control circuit (3). The PC control circuit (3) transmits a command signal to an audio circuit (5). The audio circuit (5) transmits an audio signal to a power amplifier circuit (5). The power amplifier circuit (5) outputs an amplified audio signal. The voltage regulator circuit (7) provides the radio transmitter module (1), the radio receiver module (2), the PC control circuit (3), and the audio circuit (5) with a 5V power supply. The power inverter circuit (6) provides the power amplifier circuit (5) with a positive/negative 35V power supply. The present device employs a scheme of intelligent simulation of voices to drive away the birds and animals; this not only conserves manpower but also effectively protects crops, while also protects birds and wildlife, thus preventing the killing of birds and wildlife of conventional capture-and-kill methods, and maintaining natural ecological balance.</p> |
