IP Library Granted Patent US 11,790,745
Granted Patent B2
US 11,790,745 · App. 15/734,306 · Granted Oct 17, 2023

Fire detection with data transmission

Inventors: Rajesh Athelly (Telanganda, IN); Srikanth Govindavaram (Andhra Pradesh, IN)
Assignee: CARRIER CORPORATION
G08B17/103
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Quick Facts
Patent No.
US 11,790,745
App. No.
15/734,306
Granted
Oct 17, 2023
Kind
B2
Abstract

Systems and methods for smoke detection are provided. Aspects include operating a first device to transmit a first alphanumeric code to a second device by transmitting a modulated optical signal to the second device, wherein the modulated optical signal represents the first alphanumeric code, wherein the first device comprises an optical signal source configured to transmit a modulated optical signal through a medium, and wherein the second device is configured to receive the modulated optical signal through the medium. Analyzing the modulated optical signal received at the second device to convert the modulated optical signal to a second alphanumeric code and comparing the first alphanumeric code to the second alphanumeric code to determine a presence of one or more conditions between the first device and second device.

Claims (31)

1. A system for smoke detection, the system comprising:

a first device comprising an optical signal source configured to transmit an optical signal through air;

a second device configured to receive the optical signal through the air, wherein the first device and the second device are communicatively coupled to a controller, wherein the controller is configured to:

operate the first device to transmit a first alphanumeric code to the second device by operating the first device to transmit a modulated optical signal to the second device, wherein the modulated optical signal represents the first alphanumeric code;

analyze the modulated optical signal received at the second device to convert the modulated optical signal to a second alphanumeric code; and

compare the first alphanumeric code to the second alphanumeric code to determine a presence of one or more conditions between the first device and second device.

2. The system of claim 1 , wherein the one or more conditions comprises a presence of smoke.

3. The system of claim 1 , wherein the modulated optical signal comprises a modulation of a frequency of the optical signal.

4. The system of claim 1 , wherein the modulated optical signal comprises a modulation of an amplitude of the optical signal.

5. The system of claim 1 , wherein the optical signal source comprises a light emitting diode (LED).

6. The system of claim 1 , wherein the optical source comprises a florescent bulb.

7. The system of claim 1 , wherein the modulated optical signal comprises an ON state for the optical signal and an OFF state for the optical signal.

8. The system of claim 1 , wherein the first alphanumeric code comprises a binary code and the second alphanumeric code comprises a binary code.

9. The system of claim 8 , wherein the binary code comprises a 1 representative of the ON state for the optical signal and a 0 representative of the OFF state for the optical signal.

10. The system of claim 1 , wherein the optical signal is a first optical signal; and

wherein the second device is further configured to transmit a second optical signal through the air; and

wherein the first device is further configured to receive the second optical signal through the air.

11. The system of claim 1 , wherein the optical signal comprises at least one of visible light, infrared light and ultraviolet light.

12. A method for smoke detection, the method comprising:

operating a first device to transmit a first alphanumeric code to a second device by transmitting a modulated optical signal to the second device, wherein the modulated optical signal represents the first alphanumeric code;

wherein the first device comprises an optical signal source configured to transmit a modulated optical signal through air; and

wherein the second device is configured to receive the modulated optical signal through the air;

analyzing the modulated optical signal received at the second device to convert the modulated optical signal to a second alphanumeric code; and

comparing the first alphanumeric code to the second alphanumeric code to determine a presence of one or more conditions between the first device and second device.

13. The method of claim 12 , wherein the one or more conditions are one or more of smoke.

14. The method of claim 12 , wherein the modulated optical signal comprises a modulation of a frequency of the optical signal.

15. The method of claim 12 , wherein the modulated optical signal comprises a modulation of an amplitude of the optical signal.

16. The method of claim 12 , wherein the optical signal source comprises a light emitting diode (LED).

17. The method of claim 12 , wherein the optical signal source comprises a fluorescent bulb.

18. The method of claim 12 , wherein the modulated optical signal comprises an ON state for the optical signal and an OFF state for the optical signal.

19. The method of claim 12 , wherein the first alphanumeric code comprises a binary code and the second alphanumeric code comprises a binary code.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 10, 2025
From: CARRIER CORPORATION; CARRIER GLOBAL CORPORATION; CARRIER FIRE & SECURITY EMEA; CARRIER FIRE & SECURITY, LLC; CARRIER CANADA CORPORATION; CLIMATE, CONTROLS & SECURITY ARGENTINA S.A.; KIDDE IP HOLDINGS , INC.; KIDDE LTD.; KIDDE PRODUCTS LTD.; CARRIER TRANSICOLD AUSTRIA GMBH; CARRIER TRANSICOLD FRANCE SCS
To: KIDDE FIRE PROTECTION, LLC
Reel/Frame 072828/0591 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 2, 2020
From: ATHELLY, RAJESH; GOVINDAVARAM, SRIKANTH
To: UTC FIRE & SECURITY INDIA LTD.
Reel/Frame 054514/0975 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 2, 2020
From: UTC FIRE & SECURITY INDIA LTD.
To: CARRIER CORPORATION
Reel/Frame 054515/0021 →
Priority Claims (1)
IN 201811045919 · Dec 5, 2018 · national
Continuity (1)
Related Publication 20210287510A1 · Sep 16, 2021