US 11,978,333 B2Granted

Automatic addressing for fire loop

AssigneeCarrier Corporation

InventorsJordi Escofet, Andres Cordoba, Ramon De La Torre, Santiago Vilarrubla Canals

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Abstract

An automatic addressing system for a fire loop and a method for automatically addressing a plurality of remote units electrically connected to a fire panel in a fire loop, the method including: (1) requesting an initial identifier from each remote unit; (2) for each remote unit which responds with a unique initial identifier: (a) assigning a unique address to the remote unit; and (b) silencing the response of the configured remote unit to further identifier requests; (3) for each remote unit which responds with an initial identifier matching the initial identifier of at least one other remote unit: (a) initialising an identifier array with the initial identifier for the remote unit in question; (b) requesting a further identifier and adding it to the identifier array for the remote unit; (c) for each remote unit which responds with a unique identifier array: (i) assigning a unique address to the remote unit.

Claims15

Dependent claims

A method of addressing a plurality of remote units electrically connected to a fire panel in a fire loop, the method comprising:

(1) requesting an initial identifier from each remote unit;
(2) for each remote unit which responds with a unique initial identifier:
(a) assigning a unique address to the remote unit;
and
(b) silencing the response of the configured remote unit to further identifier requests;
(3) for each remote unit which responds with an initial identifier matching the initial identifier of at least one other remote unit:
(a) initialising an identifier array with the initial identifier for the remote unit in question;
(b) requesting a further identifier and adding it to the identifier array for the remote unit;
(c) for each remote unit which responds with a unique identifier array:
(i) assigning a unique address to the remote unit;
and
(ii) silencing the response of the configured remote unit to further identifier requests;
(d) for each remote unit which responds with an identifier array matching the identifier array of at least one other remote unit, repeating steps (3)(b)-(c) until all remote units of the plurality of remote units have been silenced;
and
(4) enabling communication of the plurality of remote units in the fire loop.

12 more elements

A fire system for a building, the fire system comprising:

a fire panel for monitoring the building and activating an alarm;
and
a plurality of remote units electrically connected to the fire panel in a fire loop;
wherein the fire panel is configured with an addressing mode for addressing the plurality of remote units in the fire loop, the addressing mode comprising:
(1) requesting an initial identifier from each remote unit;
(2) for each remote unit which responds with a unique initial identifier:
(a) assigning a unique address to the remote unit;
and
(b) silencing the response of the configured remote unit to further identifier requests;
(3) for each remote unit which responds with an initial identifier matching the initial identifier of at least one other remote unit:
(a) initialising an identifier array with the initial identifier for the remote unit in question;
(b) requesting a further identifier and adding it to the identifier array for the remote unit;
(c) for each remote unit which responds with a unique identifier array:
(i) assigning a unique address to the remote unit;
and
(ii) silencing the response of the configured remote unit to further identifier requests;
(d) for each remote unit which responds with an identifier array matching the identifier array of at least one other remote unit, repeating steps (3)(b)-(c) until all remote units of the plurality of remote units have been silenced;
and
(4) enabling communication of the plurality of remote units in the fire loop.

16 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/958,814Filed 3 Oct 2022
Priority: EP 213828934 Oct 2021
Published: US 2023/0108030 A16 Apr 2023
Granted: 7 May 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

G08B 25/003
Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems: address…
G08B 25/04
Characterised by the transmission medium: using a single signalling line, e.g. in a closed loop
G08B 17/00
Fire alarms
G08B 26/005
Alarm systems in which substations are interrogated in succession by a central station: with substations connected in series, e.g. cascade