Communications: electrical – Condition responsive indicating system – With particular system function
Patent
1997-04-04
1998-09-01
Hofsass, Jeffery
Communications: electrical
Condition responsive indicating system
With particular system function
340565, 340527, 340528, 340541, 34082506, 34082531, G08B 2900
Patent
active
058016252
ABSTRACT:
An auxiliary control device for a security alarm system installed in a commercial facility includes a control circuit for bypassing the electrical connection between the alarm control panel and the security devices of the security alarm system during business hour and automatically setting the security alarm system to a standby condition at the close time of the commercial facility. At that standby condition, the auxiliary control device activates the door lock control to lock the entrance or exit door but the electrical connection between the alarm control panel and some of the security devices still remains bypassing to deactivate the alarm buzzer when any human activity of the customers inside the commercial facility is detected by the motion detectors of the security alarm system. Moreover, when a leaving customer is detected by a door sensor of the exit door, the auxiliary control device will activate the door lock control to unlock the exit door for a predetermined period of time automatically. The auxiliary control device can automatically control the security alarm system to switch to the disarming condition, standby condition and arming condition.
REFERENCES:
patent: 5532680 (1996-07-01), Ousborne
patent: 5640141 (1997-06-01), Myllymaki
Chan Raymond Y.
Hofsass Jeffery
Pope Daryl C.
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