In order to solve the problem of circult-breaker trip caused by bird damage in traction substation,a bird repellent device based on millimeter wave Doppler radar and green laser beam was developed by using the sensitive characteristic of birds to 532 nm wavelength green laser.The working principle and overall structure of the bird repel-lent device is introduced,and the paper expounds in detail the laser control device of millimeter wave Doppler radar pan as the core processing unit,and tests the bird repellent device in the field.The test results show that the bird re-pellent device has good effet,stable and reliable performamce,and meets the bird repellent requirements of traction substation pavilion.
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