Cooking system and controlling method for the same

• US 8,514,084 B2
• Filed: 11/15/2007
• Issued: 08/20/2013
• Est. Priority Date: 01/17/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yi, Soo Cheol
• Primary Examiner(s): Mehmood, Jennifer
• Assistant Examiner(s): ALAM, MIRZA F
• Application Number:
  US12/523,382
• Publication Number:
  US 20100134298A1
• Time in Patent Office: 2,105 Days
• Field of Search: 340/572.1, 340/572.4, 340/572.5, 340/988, 340/10.1, 340/10.2, 340/10.3, 340/10.31, 340/10.4, 340/10.41, 340/10.42, 340/825.69, 340/825.71, 340/825.73, 340/825.31, 340/825.72, 340/539, 340/825.32, 340/10.5, 340/5.61, 340/5.72, 340/638, 340/310.01, 340/870.02, 340/573.1, 340/539.32, 340/426.36, 340/5.73, 235/375, 235/462.01, 235/472.01, 235/454, 235/379, 235/363, 235/467, 235/472, 235/380, 235/462, 235/383, 235/435, 235/492, 235/493, 709/201, 709/10, 707/10, 707/2, 622/31, 621/25, 624/40, 621/90, 623/31, 705/1, 705/26, 219/445.1, 219/702, 219/720
• US Class Current: 340/573.1
• CPC Class Codes: F24C 7/08 Arrangement or mounting of control or safety devices

Abstract

A cooking system is provided to improve the safety and the reliability of the cooking system, and the convenience of a user. The cooking system includes at least one RF tag, a cooking appliance with an RF reader detecting the RF tag approaching, and an RF tag recognition button in a manipulation unit of the cooking system. The cooking appliance initiates a predetermined mode when the RF tag is detected. The RF tag recognition button determines whether the RF reader initiates an RF tag reading operation to recognize the RF tag.

Claims

1. A cooking system comprising:

a first radio frequency tag having a first user identification;

a second radio frequency tag having a second user identification;

a cooking appliance with a radio frequency reader detecting when one of the first and second radio frequency tags approaches, the cooking appliance initiating a predetermined mode when the one of the first and second radio frequency tags is detected;

a radio frequency tag recognition button in a manipulation unit of the cooking appliance, the radio frequency tag recognition button determining whether the radio frequency reader initiates a radio frequency tag reading operation to recognize the one of the first and second radio frequency tags;

a memory for storing user identifications; and

a controller for controlling the cooking appliance,

wherein the controller determines whether the transmitted user identification matches one of the user identifications recorded in the memory,

wherein, in accordance with the user identification, modes, which the cooking appliance enters into, are predefined in the memory,

wherein, when the controller determines that the radio frequency reader detects the first radio frequency tag, the cooking appliance enters into a safety mode, and

wherein, when the controller determines that the radio frequency reader detects the second radio frequency tag, the cooking appliance enters into a warning mode.

2. The cooking system according to claim 1, wherein a door of the cooking appliance is locked during the warning mode.

3. The cooking system according to claim 1, wherein one of a warning image and a warning sound is generated during the warning mode.

4. The cooking system according to claim 1, wherein the cooking appliance is turned off during the warning mode.

5. The cooking system according to claim 1, wherein a door-locking unit of the cooking appliance is released during the safety mode.

6. The cooking system according to claim 1, wherein main power of the cooking appliance is turned on during the safety mode.

7. The cooking system according to claim 1, wherein a message saying wait for a user'"'"'s instruction for the cooking appliance is outputted during the safety mode.

8. The cooking system according to claim 1, wherein a sensitivity of the radio frequency reader is adjustable.

9. The cooking system according to claim 1, wherein the radio frequency tag recognition button is manipulated in a different manner from manners in which other buttons are manipulated.

10. A cooking system comprising:

a first radio frequency tag comprising a first user identification;

a second radio frequency tag comprising a second user identification; and

a cooking appliance changing an operation mode for each radio frequency tag, the cooking appliance comprising;

a radio frequency reader detecting approaching of one of the first and second radio frequency tags;

a memory for storing user identifications in which a predetermined operation mode is designated for each user identification; and

a controller matching the user identification read from the radio frequency reader with user identification stored in the memory, and differently controlling the cooking appliance according to a operation mode, and the operation mode comprising a warning mode and a safety mode,

wherein, in accordance with the user identifications, modes, which the cooking appliance enters into, are predefined in the memory,

wherein, when the controller determines that the radio frequency reader detects the first radio frequency tag, the cooking appliance enters into a safety mode, and

wherein, when the controller determines that the radio frequency reader detects the second radio frequency tag, the cooking appliance enters into a warning mode.

11. The cooking system according to claim 10, wherein the cooking appliance stops operating, and/or locks a door of the cooking appliance, and/or generates a warning sound and/or generates a warning image, during the warning mode.

12. The cooking system according to claim 10, wherein the cooking appliance waits for a manipulation of the user, or main power is applied to the cooking appliance during the safety mode.

13. A method for controlling a cooking system, the method comprising:

recognizing a radio frequency tag;

reading user information from the recognized radio frequency tag;

determining whether to operate a cooking appliance at least in a safety mode or in a warning mode using the user information; and

operating the cooking appliance in the determined mode,

wherein, when the radio frequency reader detects that the detected radio frequency tag has a first user identification, the cooking appliance enters into a safety mode, and

wherein, when the radio frequency reader detects that the detected radio frequency tag has a second user identification, the cooking appliance enters into a warning mode.

14. The method according to claim 13, further comprising:

performing a radio frequency tag standby mode before the recognizing of the radio frequency tag;

determining whether the radio frequency tag is recognized again after the cooking appliance operates in the determined mode for a predetermined time; and

performing one of the safety mode and the warning mode when the radio frequency tag is recognized, otherwise entering into the radio frequency tag standby mode.

15. The method according to claim 13, wherein the safety mode is a mode for preparing an operation of the cooking appliance, the warning mode is a mode for inhibiting the cooking appliance from operating, and the radio frequency tag standby mode is a mode during which power is applied to at least a radio frequency reader of the cooking appliance.

16. The method according to claim 13, wherein the determined mode is maintained for a determined time.

17. The method according to claim 13, further comprising registering at least one of the radio frequency tags before the recognizing of the radio frequency tag.

18. The method according to claim 13, wherein a door of the cooking appliance is locked during the warning mode.

19. The method according to claim 13, wherein main power of the cooking appliance is turned on during the warning mode.