Intelligent remote test/display unit for duct smoke detector

• US 20070139184A1
• Filed: 12/21/2005
• Published: 06/21/2007
• Est. Priority Date: 12/21/2005
• Status: Active Grant

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Harter, David, Butalla, Fred
• Granted Patent: US 7,834,755 B2
• Time in Patent Office: Days
• US Class Current: 340/521
• CPC Class Codes: G08B 17/10 Actuation by presence of smoke or gases , e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
• CPC Class Codes: G08B 29/145 of fire detection circuits

Abstract

A remote accessory unit can communicate via a data protocol with one or more displaced duct detector control units. The accessory unit can present status indicators visually, on a per sensor basis. Both audible and visible annunciators can be provided to indicate an alarm condition.

Claims

1. A system comprising:

a control and display device, the device including a display for visually presenting status of at least two different duct sensors, a communications interface, and control circuits coupled to the display and the interface, the control circuits transmit and receive binary or analog commands for the duct sensors via the interface to a displaced recipient.

2. A system as in claim 1 where the device includes at least one manually operable duct sensor command input element.

3. A system as in claim 1 where the device includes a plurality of manually operable duct sensor command input elements.

4. A system as in claim 2 where the interface circuitry includes circuitry that transmits and receives data via at least one of a wired or wireless medium.

5. A system as in claim 4 where binary or analog data is transmitted to the recipient by the circuitry that transmits and receives.

6. A system as in claim 5 where at least some of the binary or analog data comprises duct sensor commands.

7. A system as in claim 6 where the at least one input element specifies a sensor to which a command is directed.

8. A system as in claim 7 where binary or analog data is received from the recipient by the circuitry that transmits and receives.

9. A system as in claim 8 where the control circuits include control software which couples duct sensor commands to the communications interface.

10. A system as in claim 8 where the control circuits include a state machine which couples duct sensor commands to the communications interface.

11. A system as in claim 8 where the control circuits include control software which receives duct sensor feedback from the communications interface.

12. A system as in claim 8 where the control circuits include a state machine which receives duct sensor feedback from the communications interface.

13. A system comprising:

a display device, the device including a display for visually presenting status of at least two different duct sensors and a communications interface, the communications interface receives binary or analog data from the duct sensors via the interface.

14. A system as in claim 13 where the interface circuitry includes circuitry that receives data via at least one of a wired or wireless medium.

15. A system as in claim 14 where the circuits include software which receives duct sensor data from the communications interface.

16. A system as in claim 14 where the circuit includes a state machine which receives duct sensor data from the communications interface.

17. A system as in claim 13 that includes circuitry for measuring and transmitting the sensitivity information of multiple sensors.

18. A system as in claim 13 where the device includes an audible enunciator.

19. A system as in claim 13 where the device includes a visible enunciator.