Abstract: Disclosed herein is an apparatus for preventing an animal and method of controlling the apparatus. The apparatus includes a sound sensor for sensing a bark of an animal and converting the bark into an electrical signal. An amplifier amplifies the electrical signal. A vibration sensor senses a vibration occurring on a neck of the animal. A microprocessor performs control such that, when signals are input from the sound sensor and the vibration sensor, voice, ultrasonic or low-frequency stimulation means is output, and has an auto-variable output function and a time band-based output function. A first control switch allows the user to optionally set a type and a stimulation intensity of the stimulation means. A second control switch allows the user to optionally set a time for which the stimulation means is operated. An output unit receives control signals for the stimulation means and outputs corresponding stimulations.

Abstract: Disclosed herein is an animal training device and method of controlling the same. The animal training device includes a transmitter and at least one receiver. The transmitter transmits RF signals according to manipulation of function switches, and has emergency stimulation mode in which an RF control signal is transmitted by adding a predetermined level to a low-frequency stimulation level set for each individual animal, simultaneous stimulation mode in which an RF control signal is transmitted by adding a predetermined level to low-frequency stimulation levels set for animals, and constant stimulation alternation mode in which an RF control signal is transmitted by automatically varying a period of a low-frequency stimulation.