Fixed network utility data collection system and method

• US 20050259580A1
• Filed: 04/26/2005
• Published: 11/24/2005
• Est. Priority Date: 04/26/2004
• Status: Abandoned Application

• Current Assignee: Itron, Inc.
• Original Assignee: Itron, Inc.
• Inventors: Hovelsrud, Neil, Larson, Gary L., Osterloh, Christopher
• Application Number:
  US11/114,900
• Publication Number:
  US 20050259580A1
• Time in Patent Office: Days
• US Class Current: 370/231
• 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: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

A fixed network utility data collection system includes a plurality of endpoints arranged in a tiered and spoke-like configuration relative to a central data collecting device. An RF transmission from the central device transmits out over the endpoints in a spoke. The first endpoint in the spoke to hear the transmission then hops the transmission to the other endpoints in the spoke. Once all of the endpoints in a spoke have received the transmission they respond to the transmission. The response starts with the outer-most endpoint and is transmitted to the next endpoint in the spoke line. That endpoint adds its response and forwards the message to the next endpoint in the spoke line and so on. Upon the inner-most endpoint of the spoke receiving the response, it adds its response and transmits the final collective response to the central device.

Claims

1. A fixed network utility data collection system, comprising:

a plurality of endpoints, wherein each of said plurality of endpoints is operably connected to a utility meter, wherein said plurality of endpoints are arranged in a multi-level tier arrangement having at least an outer tier, an intermediate tier, and an inner tier, wherein said plurality of endpoints are further arranged in a multi-spoke configuration wherein each spoke includes one endpoint from said outer tier, one endpoint from said intermediate tier, and one endpoint from said inner tier; and

a central device, wherein said central device emits an RF transmission, and wherein any one of said endpoints within one of said spokes may hear said RF transmission, and, upon any one of said endpoints hearing said RF transmission, the hearing endpoint hops said RF transmission to the other endpoints within its spoke; and

wherein upon hearing said RF transmission, the endpoints respond to said central device, wherein said response is initiated by the outer tier endpoint of the spoke and sent to said intermediate tier endpoint of the spoke, wherein said intermediate tier endpoint adds its response to the response from the outer tier endpoint of the spoke and sends the added response to the inner tier endpoint of the spoke, wherein the inner tier endpoint of the spoke adds its response to the added response to produce a final response which is sent to the central device.

2. The system of claim 1, wherein said fixed network utility data collection system operates in the 1.427 GHz to 1.432 GHz frequency band.

3. The system of claim 1, wherein said fixed network utility data collection system operates across five communication channels.

4. The system of claim 3, wherein said five communication channels include a control channel.

5. The system of claim 1, wherein each spoke further includes a repeater.

6. The system of claim 1, wherein communication between endpoints in a spoke occurs at a slower rate than communication between the inner tier endpoint of the spoke and said central device.

7. The system of claim 1, wherein the endpoints within the spoke remain in a sleep mode until a designated communication time occurs.

8. A method for collecting utility data within a fixed network that includes a plurality of endpoints, each of which is operably connected to a utility meter, and a central device, the method comprising the steps of:

placing said plurality of endpoints in a multi-tier arrangement, wherein said tiers include an outer tier, an intermediate tier, and an inner tier;

arranging said plurality of endpoints in a spoke configuration within said multi-tier arrangement, wherein each spoke includes one endpoint from said outer tier, one endpoint from said intermediate tier, and one endpoint from said inner tier;

emitting an RF transmission from said central device;

listening for said RF transmission with said plurality of endpoints;

wherein upon an endpoint hearing said RF transmission, transmitting the heard RF transmission to the other endpoints within the spoke of the hearing endpoint;

responding to said RF transmission by said outer tier endpoint of a spoke transmitting a response to the intermediate tier endpoint of the spoke, subsequently said intermediate tier endpoint adding its response to that of the outer tier endpoint and transmitting the added response to the inner tier endpoint of the spoke, subsequently said inner tier endpoint of the spoke added its response to the added response to produce a final response, and transmitting said final response from said inner tier endpoint of the spoke to said central device.

9. The method of claim 8, wherein said method occurs in the 1.427 to 1.432 GHz frequency band.

10. The method of claim 8, wherein said method utilizes five communication channels.

11. The method of claim 10, wherein said five communication channels includes a control channel.

12. The method of claim 8, wherein said step of arranging said plurality of endpoints in a spoke configuration further comprises incorporating a repeater into each spoke.

13. The method of claim 8, wherein transmissions between endpoints within a spoke occur at a slower rate of communication than transmissions between the central device and the inner tier endpoint of the spoke.

14. The method of claim 8, wherein the endpoints within the spoke remain in a sleep mode until a designated communication time occurs.

15. A fixed network utility data collection system, comprising:

a plurality of endpoints, wherein each of said endpoints is operably connected to a utility meter; and

a central device, wherein said central device in communication with a first one of said plurality of endpoints;

wherein upon said first one of said plurality of endpoints receiving a transmission from said central device, said first one of said plurality of endpoints hops said transmission to a second of said plurality of endpoints, and wherein upon said second one of said plurality of endpoints receiving said transmission, said second one of said plurality of endpoints hops said transmission to a third of said plurality of endpoints; and

wherein upon said third of said plurality of endpoints receiving said transmission, said third of said plurality of endpoints responds to said transmission with a message to said second of said plurality of endpoints, wherein said second of said plurality of endpoints receives said message, adds its own response to said transmission to the message and sends the added message to said first of said plurality of endpoints, and wherein said first of said plurality of endpoints receives the added message, adds its own response to the transmission to the added message to produce a final message, and transmits said final message to said central device.

16. The system of claim 15, wherein said fixed network utility data collection system operates in the 1.427 GHz to 1.432 GHz frequency band.

17. The system of claim 15, wherein said fixed network utility data collection system operates across five communication channels.

18. The system of claim 17, wherein said five communication channels include a control channel.

19. The system of claim 15, wherein said system further includes a plurality of repeaters.

20. The system of claim 15, wherein communication between first, second and third endpoints occurs at a slower rate than communication between the first endpoint and said central device.

21. The system of claim 15, wherein the endpoints remain in a sleep mode until a designated communication time occurs.