초록 ▼

A security system for alerting an intrusion disturbance at an entry point to a residence, or alerting as to other emergency conditions, such as fire is disclosed. In the system, a primary monitoring unit having intrusion detection sensors for placement at entry points to a residence produces an audi

A security system for alerting an intrusion disturbance at an entry point to a residence, or alerting as to other emergency conditions, such as fire is disclosed. In the system, a primary monitoring unit having intrusion detection sensors for placement at entry points to a residence produces an audible acoustic alarm signal upon the occurrence of an intrusion disturbance. The acoustic signal is detected by a secondary monitoring unit which in response transmits an electronic signal through the wiring in the residence. A central monitoring unit receives the transmitted electronic signal and activates an alerting alarm and automatic telephone dialer. The system may further include a portable alarm switch for transmitting a coded radio frequency signal to the central monitoring unit to provide remote activation of an alerting device.

대표청구항 ▼

A security system for a home having at least one entry point and pre-existing electrical wiring for distributing electrical power therein, the system comprising: an intrusion detection sensor proximate said entry point, for sensing an intrusion at said entry point and providing an intrusion detectio

A security system for a home having at least one entry point and pre-existing electrical wiring for distributing electrical power therein, the system comprising: an intrusion detection sensor proximate said entry point, for sensing an intrusion at said entry point and providing an intrusion detection signal in electrical form in response to sensing said intrusion; a primary monitoring unit near said intrusion detection sensor and electrically coupled thereto, and including means for selectively deactivating said primary monitoring unit, said primary monitoring unit receiving said intrusion detection signal and providing a primary alarm signal in human audible form a first predetermined time period after receiving said intrusion detection signal unless selectively deactivated within said first time period; a secondary monitoring unit within the audible range of the primary monitoring unit and electrically coupled to said wiring, and including means for selectively deactivating said secondary monitoring unit, said secondary monitoring unit detecting said primary alarm signal and providing an alarm detection signal in electrical form via said wiring a second predetermined time period after detecting said primary alarm signal unless selectively deactivated within said second time period; and a central monitoring unit electrically coupled to said wiring, and including means for selectively deactivating said central monitoring unit, said central monitoring unit receiving said alarm detection signal and providing a secondary alarm signal in human perceivable form a third predetermined time period after receiving said alarm detection signal unless selectively deactivated within said third time period.