Animal containment system capable of controlling plurality of animals simultaneously

An animal containment system for preventing an animal managed by a human from accessing a boundary of a particular area in which the animal is not allowed to get out of the area or access the area, the animal containment system comprising:

• a transmitter which is installed on the ground or at a ground structure to send a radio signal defining the boundary of the particular area;
• and
• at least one receiver which is worn on the animal and includes stimulation applying means to apply stimulation to the animal, the receiver configured to sense the radio signal sent from the transmitter and apply stimulation to the animal when the animal is determined to access the boundary of the particular area based on whether the radio signal is sensed or not,
• wherein the transmitter and the receiver are configured to set a value of at least one of a stimulation intensity, a stimulation type, a stimulation applying mode of stimulation to apply and an animal size, according to an animal wearing the receiver, via a direct interface between the transmitter and the receiver, not via the radio signal,
• wherein the transmitter includes a wire buried in the ground along the boundary of the particular area with two ends connected to the transmitter, so that the radio signal is sent from the wire to proximity of the wire, the transmitter having a housing with a manipulation panel, the manipulation panel including a collar manipulation unit and a transmitter manipulation unit, the collar manipulation unit being used to set or change the values of the system, the transmitter manipulation unit being configured to set or change an environment of the system, and
• when the radio signal is sensed with intensity that is higher than or equal to a predetermined intensity, the receiver determines that the animal accesses the boundary of the particular area, and applies stimulation to the animal based on the set value.