Abstract: The present invention relates to a security device for detecting an intrusion including at least one sensor frame including a sensor, a first connection frame for connecting a signal sensed from the sensor frame, and a signal processing frame for detecting an intrusion from the sensed signal received from the first connection frame or the sensor frame, wherein the at least one sensor frame is detachably connected to the security device. Accordingly, the security device can be easily installed, use a variety of sensors, and be changed in size.

Abstract: A security system using home gateway alliance includes an alliance management server which includes a gateway registration unit which registers at least one of position information and IP (Internet Protocol) information of a home gateway upon making a request for registration of the home gateway; and an alliance management unit which, in response to a request for alliance from a user terminal of the home gateway registered with the gateway registration unit, sets an alliance relationship between the home gateway having made the request for alliance and other home gateways adjacent to the home gateway having made the request for alliance.

Abstract: Provided is a crime prevention system using a sensor module capable of sensing all directions. The crime prevention system using a sensor module may be applied to buildings in which internal structures and crime prevention environments are various, have relatively low power consumption, and be simply installed.