Flow condition testing procedure of an aspirating smoke detector device

Patent metadata

Field	Value
Publication number	US-2026049850-A1
Application number	US-202519362926-A
Country	US
Kind code	A1
Filing date	Oct 20, 2025
Priority date	Feb 9, 2022
Publication date	Feb 19, 2026
Grant date	—

Abstract

Methods, devices, and systems for a flow condition testing procedure of an aspirating smoke detector device are described herein. One device includes a blower to draw gas into an aspirating smoke detector device, a sensor, a memory, and a processor to execute executable instructions stored in the memory to determine, via the sensor, a flow rate of the gas into the aspirating smoke detector device, determine a flow condition based on the determined flow rate, and cause the flow condition to be displayed.

First claim

What is claimed:

1 . An aspirating smoke detector device, comprising:
a blower to draw gas into the aspirating smoke detector device; a sensor; a processor; and a memory having instructions stored thereon which, when executed by the processor, cause the processor to:
perform a flow condition testing procedure, including:
determining, via the sensor, a flow rate of the gas from a pipe sampling network into the aspirating smoke detector device;
determining a flow condition of the pipe sampling network to be a first flow condition responsive to the determined flow rate exceeding a threshold flow rate; and
determining the flow condition of the pipe sampling network to be a second flow condition responsive to the determined flow rate not exceeding the threshold flow rate; and

cause the determined flow condition to be displayed.

2 . The aspirating smoke detector device of claim 1 , wherein:
the first flow condition indicates gas outside of the pipe sampling network is entering the pipe sampling network; and the second flow condition indicates gas outside of the pipe sampling network is not entering the pipe sampling network

3 . The aspirating smoke detector device of claim 1 , including instructions to determine the flow condition of the pipe sampling network is the first flow condition in response to the flow rate exceeding the threshold flow rate for a predetermined period of time.

4 . The aspirating smoke detector device of claim 1 , including instructions to determine the flow condition of the pipe sampling network is the second flow condition in response to the flow rate not exceeding the threshold flow rate for a predetermined period of time.

5 . The aspirating smoke detector device of claim 1 , further comprising a number of light emitting diodes (LEDs).

6 . The aspirating smoke detector device of claim 5 , including instructions to cause the flow condition to be displayed via the number of LEDs.

7 . The aspirating smoke detector device of claim 6 , including instructions to:
cause the first flow condition to be displayed via the number of LEDs emitting a first color; and cause the second flow condition to be displayed via the number of LEDs emitting a second color.

8 . The aspirating smoke detector device of claim 1 , including instructions to cause the flow rate and determined flow condition to be displayed via a user interface.

9 . A system for a flow condition testing procedure of an aspirating smoke detector device, comprising:
a pipe sampling network including a sampling port; an inlet pipe connected to the pipe sampling network; and an aspirating smoke detector device, comprising:
a blower connected to the inlet pipe to draw gas into the aspirating smoke detector device through the inlet pipe;
a sensor; and
a processor configured to:
determine, via the sensor, a flow rate of the gas into the aspirating smoke detector device during a flow condition testing procedure of the aspirating smoke detector device;
determine a flow condition of the pipe sampling network to be a first flow condition responsive to the determined flow rate exceeding a threshold flow rate, wherein the first flow condition indicates gas outside of the pipe sampling network is entering the pipe sampling network;
determine the flow condition of the pipe sampling network to be a second flow condition responsive to the determined flow rate not exceeding the threshold flow rate, wherein the second flow condition indicates gas outside of the pipe sampling network is not entering the pipe sampling network; and
cause the determined flow condition to be displayed.

10 . The system of claim 9 , including a plug to obstruct the sampling port during the flow condition testing procedure such that gas outside of the pipe sampling network is prevented from entering the pipe sampling network via the sampling port.

11 . The system of claim 9 , wherein the blower comprises a ducted housing having a fan.

12 . The system of claim 9 , wherein the aspirating smoke detector device includes a button, and wherein the processor is configured to execute the flow condition testing procedure in response to an input received via the button.

13 . The system of claim 9 , wherein the system includes a mobile device connected to the aspirating smoke detector device via a wireless connection, and wherein the mobile device includes a user interface configured to display the determined flow condition.

14 . The system of claim 13 , wherein the processor is configured to execute the flow condition testing procedure responsive to an input via the user interface of the mobile device.

15 . A method for a flow condition testing procedure of an aspirating smoke detector device, comprising:
drawing, via a blower of an aspirating smoke detector device, gas into the aspirating smoke detector device from a pipe sampling network; determining, via a sensor of the aspirating smoke detector device, a flow rate of the gas into the aspirating smoke detector device; determining, via a processor of the aspirating smoke detector device, a flow condition of the pipe sampling network based on the determined flow rate; and displaying, via a number of light emitting diodes (LEDs) of the aspirating smoke detector device, the determined flow condition.

16 . The method of claim 15 , wherein the determined flow condition is one of:
a first flow condition, determined responsive to the determined flow rate exceeding a threshold flow rate; and a second flow condition, determined responsive to the determined flow rate not exceeding the threshold flow rate.

17 . The method of claim 15 , wherein the method includes obstructing a sampling port of the pipe sampling network such that gas outside of the pipe sampling network is prevented from entering the pipe sampling network via the sampling port.

18 . The method of claim 17 , wherein displaying the determined flow condition includes causing a first group of LEDs of the number of LEDs to emit a first color in response to the flow rate being within a first flow rate range, wherein the first color corresponds to the second condition.

19 . The method of claim 18 , wherein displaying the flow condition includes causing a second group of LEDs of the number of LEDs to emit the first color in response to the flow rate being within a second flow rate range.

20 . The method of claim 19 , wherein displaying the flow condition includes causing the number of LEDs to emit a second color in response to the flow rate exceeding the threshold flow rate, and wherein the threshold flow rate exceeds the second flow rate range.

Assignees

• Honeywell Int Inc

Inventors

• Simeoni Erika
• Miheli Mauro
• Premarini Giuseppe
• Piro Domenico
• Paderno Arturo

Classifications

• G01F15/068

  with electrical means (G01F15/063 takes precedence) · CPC title

• G01F15/061

  for remote indication · CPC title

• G08B17/10

  Actuation by presence of smoke or gases {, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means} · CPC title

• G08B5/36

  using visible light sources · CPC title

• G01F1/66 Primary

  by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters · CPC title