LIGHTING SYSTEM AND METHOD FOR CONTROLLING THE SAME

• US 20120299509A1
• Filed: 05/24/2012
• Published: 11/29/2012
• Est. Priority Date: 05/25/2011
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Bang, Junwan, Do, Geunchang, LEE, Kwanghyun
• Granted Patent: US 8,878,451 B2
• Time in Patent Office: Days
• US Class Current: 315/291
• CPC Class Codes: H04L 2101/681 using addresses for wireless personal area networks or wireless sensor networks, e.g. Zigbee addresses
• CPC Class Codes: H04L 41/0806 for initial configuration or provisioning, e.g. plug-and-play
• CPC Class Codes: H04L 41/0879 Manual configuration through operator
• CPC Class Codes: H04L 41/22 comprising specially adapted graphical user interfaces [GUI]
• CPC Class Codes: H04L 61/5038 for local use, e.g. in LAN or USB networks, or in a controller area network [CAN]
• CPC Class Codes: H05B 47/19 via wireless transmission

Abstract

A lighting system as disclosed herein may include a lighting device, a switch to control the lighting device, and a controller to assign an address to the lighting device and the switch. The controller may be connected to the lighting device and the switch over a ZigBee network. The lighting device and the switch may have a first address and a first network identifier. The lighting device or the switch transmits a request for address assignment to the controller based on the first address, the request including the first network identifier, and the controller compares the first network identifier to a second network identifier stored at the controller, and may assign a second address based on the request if the first network identifier is the same as the second network identifier.

Claims

1. A lighting system comprising:

a lighting device;

a switch configured to control the lighting device; and

a controller configured to assign an address to the lighting device and the switch, the controller connected to the lighting device and the switch over a ZigBee network,

wherein the lighting device and the switch have a first address and a first network identifier,

the lighting device or the switch transmits a request for address assignment to the controller based on the first address, the request including the first network identifier, and

the controller compares the first network identifier to a second network identifier stored at the controller, and assigns a second address based on the request if the first network identifier is the same as the second network identifier.

2. The lighting system of claim 1, further comprising a gateway connected between the controller and the lighting device or the switch to relay data, and configured to format data packets for the controller and the lighting device or the switch.

3. The lighting system of claim 2, wherein the lighting device and the switch are configured as slave devices and the controller is configured as a master device.

4. The lighting system of claim 3, wherein the lighting device and the switch are ZigBee End Devices (ZED), the gateway is a ZigBee Router (ZR), and the controller is a ZigBee Coordinator (ZC).

5. The lighting system of claim 1, wherein the first network identifier is a first Extended Personal Area Network Identifier (EXT_PAN_ID) associated with the lighting device or the switch, and the second network identifier is a second EXT_PAN_ID, which corresponds to the first EXT_PAN_ID, included in the controller.

6. The lighting system of claim 5, wherein the request includes the first address, a default channel, and a default personal area network identifier (PAN_ID) that correspond to the lighting device and the switch.

7. The lighting system of claim 6, wherein the first PAN_ID is unique to the PAN corresponding to the lighting device or switch and the first and second EXT_PAN_IDs are unique to the corresponding device.

8. The lighting system of claim 5, wherein the controller receives the second EXT_PAN_ID from a second lighting device connected to the PAN.

9. The lighting system of claim 1, wherein the first address is a default address that is restricted to communication with the controller for address assignment.

10. The lighting system of claim 1, wherein the controller includes an address setting module that processes the request for address assignment, the address setting module including device address information for identifying a device type of the requesting lighting device or switch in order to assign the second address.

11. The lighting system of claim 10, wherein the address setting module transmits at least one of a port open command and a network initialization command to the lighting device and the switch to assign the second address.

12. The lighting system of claim 11, wherein, in response to the request, the controller transmits a control command to control the lighting device to turn on and off at a prescribed pattern prior to assigning the second address.

13. The lighting system of claim 12, wherein, in response to a message from the controller to assign the second address, the lighting device or switch generates a response to the controller to indicate a successful address assignment, an incomplete address assignment, or an error condition.

14. The lighting system of claim 1, wherein the lighting device and the switch includes a memory for storing information associated with the second address.

15. The lighting system of claim 1, wherein the switch is configured to control a dimming level of the lighting device or to turn the lighting device on or off.

16. The lighting system of claim 1, wherein the controller is at least one of a mobile phone, personal digital assistant, PDA, tablet, or personal computer, PC.

17. A lighting system comprising:

a lighting device;

a switch configured to control the lighting device; and

a controller configured to assign an address to the lighting device and the switch, the controller connected to the lighting device and the switch over a ZigBee network,

wherein the lighting device and the switch has a first address and a first Extended Personal Area Network Identifier (EXT_PAN_ID),

the lighting device or the switch transmits a request for address assignment to the controller based on the first address, the request including the first EXT_PAN_ID, and

the controller compares the first EXT_PAN_ID to a second EXT_PAN_ID, and assigns a second address if the first EXT_PAN_ID is the same as the second EXT_PAN_ID.

18. The lighting system of claim 17, wherein the first address is restricted to communication with the controller to request address assignment and the second address allows control of the lighting device and the switch on a personal area network, PAN.

19. A lighting system comprising:

a lighting device;

a switch configured to control the lighting device;

a first controller configured to assign an address to the lighting device and the switch;

a gateway configured to relay messages between the controller and the lighting device or switch; and

a second controller to control the lighting device and the switch based on a ZigBee standard,

wherein the lighting device and the switch includes a first address, first channel information, a first personal area network identifier (PAN_ID), and a first Extended Personal Area Network Identifier (EXT_PAN_ID) and the controller includes a second EXT_PAN_ID, and

wherein the lighting device or the switch transmits a request for address assignment to the controller based on the first address, the request including the first channel information, the first PAN_ID, and the first EXT_PAN_ID, and

in response to the request, the controller compares the first EXT_PAN_ID to the second EXT_PAN_ID, and assigns a second address to the lighting device or switch based on at least one of the first channel information, the first PAN_ID and the first EXT_PAN_ID if the first EXT_PAN_ID is the same as the second EXT_PAN_ID.

20. The lighting system of claim 19, where the first address is limited to communicating with the controller to request address assignment and the second address allows control of the lighting device and the switch.