| 摘要 |
Virtual fencing of an animal includes a microprocessor for continuously determining the position of an animal relative to a target and whether the animal is moving relative to the target. A stimulus unit applies a sensory stimulus to the animal in response to signals received from the microprocessor. The microprocessor is programmable such that if the distance between the animal and the target is less than a predetermined distance and if the animal is moving in a direction towards the target a stimulus is applied to the animal and the stimulus is withdrawn when the animal either stops, retreats from the target, or accelerates while the distance between the animal and the target is less than the predetermined distance. |
