Security system with fall back to local control

Details Security system with fall back to local control Security system with fall back to local control

1996-04-01

1998-02-10

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular system function

340539, 340502, G08B 108

Patent

active

057173788

ABSTRACT:
A security system having a communications link with a central control, including a local network responds: a) to central control when the central communications link is operational; and, b) to local control when the central communications link malfunctions. More specifically, the local network includes a plurality of receivers for detecting emergency communications, an alarm for issuing a perceptible warning and a local control. The local control notifies the central control when an emergency signal is detected and activates the alarm in response to direction from the central control. The local control also includes logic for directly activating the alarm when an emergency signal is detected and there is no response from central control. According to more specific features, the central control includes data for validating emergency signals and activates the alarm only after validation. The local control, on the other hand, activates the alarm without validation.

REFERENCES:
patent: 3914692 (1975-10-01), Seaborn, Jr.
patent: 3925763 (1975-12-01), Wadhwani et al.
patent: 4427974 (1984-01-01), Sheahan
patent: 4465904 (1984-08-01), Gottsegen et al.
patent: 4611198 (1986-09-01), Levinson et al.
patent: 4951029 (1990-08-01), Severson
patent: 5327478 (1994-07-01), Lebowitz
patent: 5365217 (1994-11-01), Toner
patent: 5416466 (1995-05-01), Malvaso et al.
patent: 5467074 (1995-11-01), Pedtke

Affiliated with

Also associated with

Rating

Security system with fall back to local control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Security system with fall back to local control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Security system with fall back to local control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2080281