Abstract: The present invention provides an intrusion sensing apparatus for a security fence, the apparatus detecting the distribution characteristic of a frequency component of an output signal in a charge amplifier connected to a shielding multi-core cable united with a security fence, and thereby determining whether the output signal is a signal caused by the overall vibration of and a partial impact on the security fence.
Abstract: The present invention relates to a device provided in a rice field, a dry field, an orchard, a fish farm and the like for repelling wild animals and pest birds, and particularly, to a device for repelling wild animals and pest birds using a laser which can emit light by using a laser beam to startle pest birds or wild animals, and is thus provided more conveniently without regard to place or time to effectively repel pest birds and wild animals.
Abstract: The present invention provides an intrusion sensing apparatus for a security fence, the apparatus detecting the distribution characteristic of a frequency component of an output signal in a charge amplifier connected to a shielding multi-core cable united with a security fence, and thereby determining whether the output signal is a signal caused by the overall vibration of and a partial impact on the security fence.
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