IP Library › Granted Patent US 12,449,288
Granted Patent B2
US 12,449,288 · App. 17/667,917 · Granted Oct 21, 2025

Flow condition testing procedure of an aspirating smoke detector device

Inventors: Erika Simeoni (Trieste, IT); Mauro Miheli (Trieste, IT); Giuseppe Premarini (Trieste, IT); Domenico Piro (Trieste, IT); Arturo Paderno (Trieste, IT)
Assignee: Honeywell International Inc.
G01F1/66G01F15/061G01F15/068
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Quick Facts
Patent No.
US 12,449,288
App. No.
17/667,917
Granted
Oct 21, 2025
Kind
B2
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.

Claims (35)

1. An aspirating smoke detector device, comprising:

a blower to draw gas into the aspirating smoke detector device for a flow condition testing procedure for a pipe sampling network, wherein the aspirating smoke detector device is connected to the pipe sampling network;

a sensor;

a memory; and

a processor configured to execute executable instructions stored in the memory to:

determine, via the sensor, a volumetric flow rate of the gas into the aspirating smoke detector device;

compare the volumetric flow rate of the gas to a threshold flow rate;

determine, in response to the volumetric flow rate of the gas being above the threshold flow rate, a flow condition to be a bad flow condition, wherein the bad flow condition indicates a leak existing in the pipe sampling network;

determine, in response to the volumetric flow rate of the gas being below the threshold flow rate for at least a predetermined period of time after initiation of the flow condition testing procedure such that a low-pressure condition forms in the pipe sampling network, the flow condition to be a good flow condition; and

cause the flow condition to be displayed.

2. The aspirating smoke detector device of claim 1 , wherein:

the aspirating smoke detector device further comprises a number of light emitting diodes (LEDs); and

the processor is configured to cause the flow condition to be displayed via the number of LEDs.

3. The aspirating smoke detector device of claim 1 , wherein:

the aspirating smoke detector device further comprises a user interface; and

the processor is configured to cause the volumetric flow rate and the flow condition to be displayed via the user interface.

4. The aspirating smoke detector device of claim 1 , wherein the sensor is an ultrasonic sensor.

5. A system for a flow condition testing procedure of an aspirating smoke detector device, comprising:

a pipe sampling network including a sampling port at a sampling location;

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 for a flow condition testing procedure for the pipe sampling network;

a sensor; and

a processor configured to:

determine, via the sensor, a volumetric flow rate of the gas into the aspirating smoke detector device during a flow condition testing procedure of the aspirating smoke detector device;

compare the volumetric flow rate of the gas to a threshold flow rate;

determine, in response to the volumetric flow rate of the gas being above the threshold flow rate, a flow condition of the pipe sampling network to be a bad flow condition, wherein the bad flow condition indicates a leak existing in the pipe sampling network such that gas outside of the pipe sampling network is improperly entering the pipe sampling network during the flow condition testing procedure; and

determine, in response to the volumetric flow rate of the gas being below the threshold flow rate for at least a predetermined period of time after initiation of the flow condition testing procedure such that a low-pressure condition forms in the pipe sampling network, the flow condition to be a good flow condition, wherein the good flow condition indicates no leaks existing in the pipe sampling network such that gas outside of the pipe sampling network is not improperly entering the pipe sampling network during the flow condition testing procedure; and

cause the flow condition to be displayed.

6. The system of claim 5 , wherein the sampling port is obstructed during the flow condition testing procedure such that gas outside of the pipe sampling network at the sampling location does not enter the pipe sampling network.

7. The system of claim 5 , wherein the aspirating smoke detector device includes a button such that the processor is configured to execute the flow condition testing procedure in response to an input received via the button.

8. The system of claim 5 , wherein:

the system further includes a mobile device connected to the aspirating smoke detector device via a wireless connection; and

the mobile device includes a user interface configured to display at least one of the volumetric flow rate and the flow condition.

9. The system of claim 8 , wherein in response to an input to the user interface of the mobile device, the mobile device is configured to cause the processor to execute the flow condition testing procedure.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 9, 2022
From: SIMEONI, ERIKA; MIHELI, MAURO; PREMARINI, GIUSEPPE; PIRO, DOMENICO; PADERNO, ARTURO
To: HONEYWELL INTERNATIONAL INC.
Reel/Frame 058939/0565 →
Continuity (1)
Related Publication 20230251117A1 · Aug 10, 2023
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