The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 16, 1991
Filed:
May. 27, 1988
Alfred V DePierro, Woodbury, NY (US);
Napco Security Systems, Inc., Amityville, NY (US);
Abstract
There is disclosed a multi-zone microprocessor fire control apparatus. The control apparatus employs a microprocessor which monitors a plurality of zones. Each zone may be associated with a smoke detector and which smoke detector will provide a predetermined condition when smoke is present in a zone. The microprocessor is controlled to monitor each zone by scanning the zones in a predetermined sequence. The microprocessor is associated with the key pad. According to the present invention, the key pad is accessed by a serviceman who inserts a given code into the key pad indicative of a one man test mode. The microprocessor recognizes the selection of this mode and therefore anticipates receiving an alarm condition due to the fact that the serviceman, after accessing the key pad, will enter a selected zone to provide an intentional alarm at that zone. Based on the fact that the microprocessor recognizes the selection of this one man test mode, the microprocessor will expect an alarm from the selected zone and will notify the serviceman by providing an audible alarm after the serviceman has intentionally caused the alarm. In this manner the serviceman can access each of the zones selected to verify proper operation by intentionally causing an alarm at each zone without causing the system to provide a normal output alarm signal which would occur upon the existence of true smoke conditions in a zone. There are other modes of operation during this test mode which enable the microprocessor to selectively inform a serviceman of conditions at selected zones by enabling the serviceman to repair such conditions as necessary.