Acousto-optic bird repellent device
A directional sound wave bird repelling and optical drive technology, applied in animal repellents, applications, animal husbandry, etc., can solve problems such as noise pollution, high weather conditions, and aircraft damage.
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[0023] refer to Figure 1-5 , an acousto-optic bird repelling device of the present invention includes a signal processing control circuit 10, and a directional sound wave bird repelling unit 20 and a laser bird repelling unit 30 connected to the signal processing control circuit 10.
[0024] The signal processing control circuit 10 is composed of a single-chip microcomputer, a signal processing chip DSP and a field programmable logic gate device FPGA. Its function is to process digital signals, control the switch of the laser generating circuit, and make it emit laser light in conjunction with the acoustic wave signal.
[0025] The directional sound wave bird repelling unit 20 comprises a low-pass filter circuit 21 and an A / D conversion circuit 22 connected to each other, and a D / A conversion circuit 23, a power amplification filter circuit 24 and a transducer group 25 connected in sequence, and the low-pass filter circuit 21 is connected to the input audio signal, the A / D co...
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