Monitoring system for cooking station

• US 20050265423A1
• Filed: 05/26/2004
• Published: 12/01/2005
• Est. Priority Date: 05/26/2004
• Status: Abandoned Application

• Current Assignee: Avago Technologies ECBU IP Singapore Pte Limited (Broadcom, Inc.)
• Original Assignee: Avago Technologies ECBU IP Singapore Pte Limited (Broadcom, Inc.)
• Inventors: Kriss, Mark Arthur, Mahowald, Peter H.
• Application Number:
  US10/854,464
• Publication Number:
  US 20050265423A1
• Time in Patent Office: Days
• US Class Current: 374/121
• CPC Class Codes: G01J 2005/0077 Imaging
• CPC Class Codes: G01J 5/0003 for sensing the radiant heat transfer of samples, e.g. emittance meter
• CPC Class Codes: G08B 17/125 by using a video camera to detect fire or smoke
• CPC Class Codes: H05B 6/687 for cooking
• CPC Class Codes: Y02B 40/00 Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

A monitoring system comprising an image sensor adapted to provide image signals of a cooking station, and a control circuit. The control circuit is configured to receive the image signals and process the image signals to determine at least one state of the cooking station.

Claims

1. A monitoring system, comprising:

an image sensor adapted to provide first image signals of a cooking station based on electromagnetic waves in the visible light spectrum and second image signals of the cooking station based on electromagnetic waves in the infrared light spectrum; and

a control circuit configured to receive the first image signals and the second image signals and process the first image signals and the second image signals to obtain a digital image of the cooking station based on the first image signals and the second image signals and to process the digital image to determine at least one state of the cooking station and provide alarm signals based on the digital image.

2. The monitoring system of claim 1, wherein the at least one state of the cooking station comprises:

one of an on state of the cooking station and an off state of the cooking station.

3. The monitoring system of claim 1, wherein the at least one state of the cooking station comprises:

one of a plurality of heating levels of the cooking station.

4. The monitoring system of claim 1, wherein the at least one state of the cooking station comprises:

one of the cooking station being attended and the cooking station left unattended.

5. The monitoring system of claim 1, wherein the at least one state of the cooking station comprises:

one of the presence of a pan at the cooking station and the absence of a pan at the cooking station.

6. The monitoring system of claim 1, wherein the at least one state of the cooking station comprises:

one of the presence of food in a pan at the cooking station and the absence of food in a pan at the cooking station.

7. The monitoring system of claim 1, wherein the control circuit is configured to provide a signal that indicates the at least one state of the cooking station comprises the combination of an on state of the cooking station and the cooking station left unattended.

8. The monitoring system of claim 1, wherein the control circuit is configured to provide a signal that indicates the at least one state of the cooking station comprises the combination of an off state of the cooking station and the presence of a pan at the cooking station.

9. The monitoring system of claim 1, wherein the control circuit is configured to provide a signal that indicates the at least one state of the cooking station comprises the combination of an on state of the cooking station and one of the presence of a pan at the cooking station and the absence of a pan at the cooking station.

10. The monitoring system of claim 1, wherein the control circuit is configured to provide a signal that indicates the at least one state of the cooking station comprises the combination of the presence of a pan at the cooking station and the cooking station left unattended.

11. The monitoring system of claim 1, wherein the control circuit is configured to provide a signal that indicates the at least one state of the cooking station comprises the combination of an on state of the cooking station, the absence of a pan at the cooking station, and the cooking station left unattended.

12. The monitoring system of claim 1, wherein the control circuit is configured to provide a signal that indicates the at least one state of the cooking station comprises the combination of the presence of a pan at the cooking station, the cooking station left unattended, and one of an on state of the cooking station and an off state of the cooking station.

13. The monitoring system of claim 1, wherein the control circuit is configured to provide a signal that indicates the at least one state of the cooking station comprises a fire has started at the cooking station.

14. The monitoring system of claim 1, wherein the control circuit is configured to provide an intermediate level fire alarm signal that indicates an intermediate level fire.

15. The monitoring system of claim 1, wherein the control circuit comprises a thermometer configured to be read by the control circuit.

16. The monitoring system of claim 1, wherein the control circuit is configured to provide a signal that indicates the at least one state of the cooking station and the signal is adapted to provide at least one of turning off the cooking station, turning the cooking station to a lower heating level, and providing an audible alarm.

17. The monitoring system of claim 1, comprising a communication circuit configured to communicate the alarm signals to least one external source via one of a wired connection and wirelessly, wherein the control circuit is configured to communicate the alarm signals to the at least one external source via the communication circuit.

18. The monitoring system of claim 1, comprising a switch configured to disable the monitoring system and allow cooking via the cooking station with a disabled monitoring system.

19. The monitoring system of claim 1, wherein the control circuit comprises a single chip processor.

20. The monitoring system of claim 1, wherein the control circuit comprises:

a first processor configured to electronically process the first image signals and the second image signals to provide the digital images of the cooking station; and

a second processor configured to electronically process the digital images of the cooking station to determine the at least one state of the cooking station.

21. A system comprising:

a plurality of monitors adapted to monitor a plurality of cooking stations, wherein each of the plurality of monitors is configured to provide at least one signal that indicates at least one state of one of the plurality of cooking stations and each of the plurality of monitors comprises;

an image sensor adapted to provide first image signals of at least one of the plurality of cooking stations based on electromagnetic waves in the visible light spectrum and second image signals of the at least one of the plurality of cooking stations based on electromagnetic waves in the infrared light spectrum; and

a control circuit configured to receive the first image signals and the second image signals and process the first image signals and the second image signals to obtain a digital image of the at least one of the plurality of cooking stations based on the first image signals and the second image signals and to process the digital image to determine the at least one state of the at least one of the plurality of cooking stations based on the digital image; and

a control system configured to receive the at least one signal from each of the plurality of monitors and respond to an external source based on the received at least one signal.

22. The system of claim 21, wherein the control system comprises one of a home automation system and a security system, and the external source comprises at least one of a fire department, a connection to the world wide web, and a cooking device that includes at least one of the plurality of cooking stations.

23. The system of claim 21, wherein the control system is configured to regulate cooking times of the plurality of cooking stations.

24. The system of claim 21, wherein each of the plurality of cooking stations comprise at least one heating area of at least one of a stove, an oven, and a barbecue.

25. A method of monitoring a cooking station, comprising:

transmitting first image signals of the cooking station, which are based on electromagnetic waves in the visible light spectrum;

transmitting second image signals of the cooking station, which are based on electromagnetic waves in the infrared light spectrum;

receiving the first image signals and the second image signals at a control circuit;

processing the first image signals and the second image signals to obtain a digital image of the cooking station based on the first image signals and the second image signals; and

processing the digital image to determine at least one state of the cooking station.

26. The method of claim 25, comprising:

providing alarm signals based on the processed digital image processing the image.

27. The method of claim 26, comprising:

responding to the alarm signals via an audible alarm.

28. The method of claim 26, comprising:

communicating the alarm signals to an external source.

29. The method of claim 26, comprising:

regulating the cooking station in response to the alarm signals.