Remote monitoring and control of LED based street lights

• US 8,803,662 B2
• Filed: 01/04/2011
• Issued: 08/12/2014
• Est. Priority Date: 04/28/2009
• Status: Active Grant

• Current Assignee: Dialight Corporation (Dialight PLC)
• Original Assignee: Dialight Corporation (Dialight PLC)
• Inventors: Ahmad, Rizwan
• Primary Examiner(s): Lee, Benjamin C
• Assistant Examiner(s): BURGDORF, STEPHEN R
• Application Number:
  US12/984,377
• Publication Number:
  US 20110095867A1
• Time in Patent Office: 1,316 Days
• Field of Search: 405/57, 315/129, 315/312, 324/110, 324/414, 340 101- 1052, 340/310.11, 340/635, 340/815.45, 340906-907, 340/909, 340/915, 340/924, 340/944, 340/FOR.465, 346/14.MR, 362/311.02
• US Class Current: 340/10.1
• CPC Class Codes: G01D 2204/45 Utility meters networked together within a single building
• CPC Class Codes: G01D 4/004 Remote reading of utility meters to a fixed location
• CPC Class Codes: G01R 31/44 Testing lamps
• CPC Class Codes: H04Q 2209/25 using a mesh network, e.g. a public urban network such as public lighting, bus stops or traffic lights
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
• CPC Class Codes: Y02B 90/20 Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• CPC Class Codes: Y04S 20/30 Smart metering, e.g. specially adapted for remote reading

Abstract

The present invention is directed to a method for remotely collecting metering information via a light emitting diode (LED) based street light. In one embodiment, the method includes collecting information from a utility meter coupled to a home, establishing a two-way communication path via a communication module to a central office, wherein the communication module is coupled to the LED based street light and sending the information from the utility meter to the central office via the two-way communication path.

Claims

1. A method for remotely collecting information via a light emitting diode (LED) based street light, comprising:

collecting the information via the LED based street light from a utility meter coupled to a home,

wherein the LED based street light is a part of an Advanced Metering Infrastructure (AMI);

establishing a two-way communication path via a communication module to a central office,

wherein the communication module is coupled to the LED based street light, and

wherein the LED based street light comprises a plurality of independently controllable groups of LEDs;

sending the information from the utility meter to the central office via the two-way communication path,

wherein said two-way communication path traverses the AMI;

receiving, at the communication module, at least one a first control signal from the central office to control the utility meter and a second control signal to control the LED based street light,

wherein the at least one first control signal turns off the utility meter and the second control signal turns on only a subset of the plurality of independently controllable groups of LEDs; and

sending, by the communication module, the first control signal to the utility meter to turn off the utility meter.

2. The method of claim 1, wherein the information from the utility meter is collected by a power line module (PLM).

3. The method of claim 1, wherein the collecting comprises:

receiving the information from the utility meter at a first LED based street light located near the home; and

forwarding the information from the utility meter from the first LED based street light to one or more additional LED based street lights until the information reaches the LED based street light that has established the two-way communication path via the communication module to the central office.

4. The method of claim 1, wherein the collecting comprises collecting information from a plurality of utility meters coupled to each one of a plurality of homes.

5. The method of claim 1, wherein said communication module communicates via at least one of:

a 900 megahertz (MHz) spread spectrum band, a ZigBee protocol, a power line communication protocol, a cellular protocol, a satellite communication protocol, a paging communication protocol or any combination thereof.

6. The method of claim 1, wherein said two-way communication path traverses at least one public network.

7. A method for extending a mesh network, comprising:

collecting information from a plurality of utility meters in the mesh network;

receiving the information at a first light emitting diode (LED) based street light having a communication module from the plurality of utility meters in the mesh network,

wherein the first LED based street light comprises a plurality of independently controllable groups of LEDs, and

wherein the first LED based street light is a part of an Advanced Metering Infrastructure (AMI);

forwarding the information from the first LED based street light via the communication module to a take-off point LED based street light having a communication module that has established a two-way communication path to a central office via one or more intermediate LED based street lights each having a respective communication module,

wherein the take-off point LED based street light collects information from a plurality of different mesh networks to send to the central office,

wherein one or more of the plurality of different mesh networks do not have a respective take-off point LED based street light, and

wherein the take-off point LED based street light is a part of the AMI;

receiving, at the communication module of the first LED based street light, a first control signal from the central office to control one of the plurality of utility meters and a second control signal to control the first LED based street light,

wherein the first control signal turns off the one of the plurality of utility meters and the second control signal turns on only a subset of the plurality of independently controllable groups of LEDs; and

sending, by the communication module of the first LED based street light, the first control signal to the one of the plurality of utility meters to turn off the one of the plurality of utility meters.

8. The method of claim 7, wherein the information is collected by a power line module (PLM).

9. The method of claim 7 wherein the mesh network comprises a neighborhood area network (NAN) comprising a plurality of homes.

10. The method of claim 7 wherein the first LED based street light is located within a transmission and a reception range of the plurality of utility meters in the mesh network.

11. The method of claim 7, wherein the one or more intermediate LED based street lights and the take-off point LED based street light are located in different locations relative to the first LED based street light.

12. The method of claim 7, wherein the take-off point LED based street light comprises an LED based street light having a communication module in communication with a wide area network (WAN).

13. The method of claim 7, wherein said communication module communicates via at least one of:

a 900 megahertz (MHz) spread spectrum band, a ZigBee protocol, a power line communication protocol, a cellular protocol, a satellite communication protocol, a paging communication protocol or any combination thereof.

14. A method for extending a mesh network, comprising:

collecting a first information from a plurality of utility meters in a first mesh network,

wherein the first mesh network does not have a take-off point light emitting diode (LED) based street light in communication with a gateway to access a public communication network;

receiving the first information at a first LED based street light having a first communication module from the plurality of utility meters in the first mesh network,

wherein the first LED based street light comprises a plurality of independently controllable groups of LEDs, and

wherein the first LED based street light is a part of an Advanced Metering Infrastructure (AMI);

forwarding the first information to a second LED based street light having a second communication module,

wherein the second LED based street light is a part of the AMI;

collecting a second information from a plurality of utility meters in a second mesh network;

combining the first information and the second information;

forwarding the first information and the second information from the second LED based street light via the second communication module to a take-off point LED based street light having a communication module that has established a two-way communication path to a central office, wherein the take-off point LED based street light is a part of the AMI;

receiving, at the communication module of the first LED based street light, a first control signal from the central office to control one of the plurality of utility meters and a second control signal to control the first LED based street light,

wherein the at least one first control signal turns off the one of the plurality of utility meters and the second control signal turns on only a subset of the plurality of independently controllable groups of LEDs; and

sending, by the communication module of the first LED based street light, the at least one first control signal to the one of the plurality of utility meters to turn off the one of the plurality of utility meters.

15. The method of claim 14, wherein the first information and the second information are collected by a respective power line module (PLM).

16. The method of claim 14 wherein each of the first mesh network and the second mesh network comprises a neighborhood area network (NAN) comprising a plurality of homes.

17. The method of claim 14, wherein the first communication module, the second communication module and the communication module of the take-off point LED based street light communicate via at least one of:

a 900 megahertz (MHz) spread spectrum band, a ZigBee protocol, a power line communication protocol, a cellular protocol, a satellite communication protocol, a paging communication protocol or any combination thereof.

18. The method of claim 14, wherein one or more intermediate LED based street lights each having a communication module are located in between a communication path between the first communication module and the second communication module and between the second communication module and the communication module of the take-off point LED based street light.

19. The method of claim 14, wherein the take-off point LED based street light comprises an LED based street light having a communication module in communication with a wide area network (WAN).