Remotely controlled intrusion alarm and detection system

Details Remotely controlled intrusion alarm and detection system Remotely controlled intrusion alarm and detection system

1999-08-12

2000-10-24

Hofsass, Jeffery A.

Communications: electrical

Condition responsive indicating system

Specific condition

340543, 340545, G08B 1300

Patent

active

061374059

ABSTRACT:
An intrusion detection system used to surveil a predetermined space includes a self-contained monitor responsive to an authorized remote controller transmitting a particular radio-frequency (RF) carrier signal under the control a user. The self-contained monitor comprises a primary power source electrically coupled to a nonvolatile memory circuit, a receiver circuit and a motion detector positioned to surveil a predetermined space for an intruder. A plurality of switches accessible to the user is included in the self-contained monitor for setting a binary code thereon which represents the particular RF carrier signal. Also included in the self-contained monitor and accessible to the user is a code transfer circuit for transferring the last code set on the code setting switch into the nonvolatile memory circuit making the self-contained monitor responsive to the particular RF carrier signal. The user can change the last code set on the code setting switch without effecting the last code transferred into the nonvolatile memory circuit so that the intruder cannot determine the last code which makes the self-contained monitor responsive to the authorized remote controller.

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