Long line monitoring and locating system

• US 20070288195A1
• Filed: 03/09/2007
• Published: 12/13/2007
• Est. Priority Date: 03/10/2006
• Status: Abandoned Application

• Current Assignee: MetroTech Corporation Inc.
• Original Assignee: MetroTech Corporation Inc.
• Inventors: Li, Kun, Waite, James
• Application Number:
  US11/716,298
• Publication Number:
  US 20070288195A1
• Time in Patent Office: Days
• US Class Current: 702/150
• CPC Class Codes: G01R 29/085 for detecting presence or location of electric lines or cables fault detection G01R31/50; fault location G01R31/08
• CPC Class Codes: G01R 31/088 Aspects of digital computing

Abstract

A system is provided that can monitor concealed lines and can assist in locating the concealed lines. The system includes a management system, a transmitter, a first node, and a second node. The transmitter is configured to communicate with the management system, wherein the transmitter transmits an AC power signal identifying a command and at least one node to assist in executing the command. The first node is configured to receive the AC power signal, to consume the AC power signal, and to source an output signal according to the command by supplying the output signal to a first conductor segment. The second node is configured to receive the AC power signal from the conductor segment and to prepares itself to receive the output signal from the first node according to the command.

Claims

1. A system comprising:

a management system;

a transmitter configured to communicate with the management system, wherein the transmitter transmits an AC power signal identifying a command and at least one node to assist in executing the command;

a first node configured to receive the AC power signal, to consume the AC power signal, and to source an output signal according to the command by supplying the output signal to a first conductor segment; and

a second node configured to receive the AC power signal from the conductor segment and to prepares itself to receive the output signal from the first node according to the command.

2. The system of claim 1, wherein the first node sources a line locate signal through the conductor to the second node when the command is a line locating command.

3. The system of claim 2, wherein the line locate signal is an AC signal that generates an electromagnetic phase corrected line locate signal.

4. The system of claim 1, wherein the first node sources a line monitoring signal through the conductor to the second node when the command is a line monitoring command.

5. The system of claim 4, wherein the line monitoring signal is a voltage direct current signal.

6. The system of claim 4, wherein the second node grounds itself and isolates the conductor segment between the second node and a downstream node, receives line monitoring signal from the first node, updates health data of the conductor segment, and transmits the health data to the transmitter.

7. The system of claim 6, wherein the transmitter transmits the health data to the management device for processing.

8. The system of claim 6, wherein health data includes the second node'"'"'s health data.

9. The system of claim 1, further comprising a third node that determines whether at least one of the first node or the second node is downstream and provides the AC power signal to at least one of the first node or the second node if they are downstream.

10. The system of claim 1, wherein the transmitter includes the first node.

11. A method comprising:

receiving, at a node, an AC power signal generated by a transmitter, wherein the AC power signal includes a command and at least one identified node address;

determining whether the node'"'"'s address matches the identified node address; and

participating in the command based on the determination.

12. The method of claim 11, further comprising determining whether the node is a pathway node when the node'"'"'s address does not match the identified node address.

13. The method of claim 12, further comprising reconfiguring the node to be a pathway node when the node is a pathway node, and providing the AC power signal to the next downstream node.

14. The method of claim of claim 11 determining whether the node is a target or a signal node when the node'"'"'s address matches the identified node address.

15. The method of claim 14, further comprising reconfiguring the node to be a target node.

16. The method of claim 14, further comprising reconfiguring the node to be a signal node, providing AC power signal to a target node, and consuming the AC power signal.

17. The method of claim 11, further comprising determining the command of the AC power signal when the node is a target node, wherein the command is a line locating command or a line monitoring command.

18. The method of claim 17, wherein the participating includes preparing for receipt of a line locate signal when the command is a line locating command.

19. The method of claim 17, wherein the participating includes grounding the node, isolating a downstream conductor segment, updating data corresponding to the health of the upstream conductor segment when the command is a line monitoring command, and transmitting health data to an upstream component.

20. The method of claim 11, further comprising determining the command of the AC power signal when the node is a signal node, wherein the command is a line locating command or a line monitoring command.

21. The method of claim 20, wherein the participating includes sourcing a direct current voltage through a conductor segment to a target node when the command is a line monitoring command, wherein the target node collects health data of the conductor segment.

22. The method of claim 20, wherein the participating includes sourcing a line locate signal through a conductor segment to a target node when the command is a line locating command, wherein the conductor segment creates an electromagnetic field when the line locate signal flows through the conductor segment.

23. A node comprising:

at least one switch; and

a processor configured to receive an AC power signal including a command and at least one identified node address, to determine whether the node'"'"'s address matches the identified node address;

to reconfigure the at least one switch based on the determination, and to participate in executing the command.

24. The node of claim 23, further comprising a memory configured to provide a downstream node'"'"'s address to the processor so that the processor can determine whether the downstream node'"'"'s address matches the identified node address.

25. The node of claim 24, wherein the processor reconfigures the at least one switch so that the node acts as a pathway node when the downstream node'"'"'s address matches the identified node address.

26. The node of claim 23, wherein the processor reconfigures the at least one switch so that the node acts as a signal node based on the determination.

27. The node of claim 23, wherein the processor determines whether the command is a line locating command or a line monitoring command based on the match determination.

28. The node of claim 27, further comprising a signal generator that generates a direct current voltage to be provided to a target node when the command is a line monitoring command.

29. The node of claim 27, further comprising a signal generator that generates a line locate signal to be provided to a conductor sheath segment, wherein the conductor segment creates an electromagnetic field when the line locate signal flows through the conductor segment.

30. The node of claim 23, wherein the processor reconfigures the at least one switch so that the node acts as a target node based on the determination.

31. The node of claim 23, wherein the processor determines whether the command is a line locating command or a line monitoring command based on the match determination.

32. The node of claim 31, wherein the processor participates in executing the line locating command by preparing for receipt of a line locate signal.

33. The node of claim 31, wherein the processor participates in executing the line monitoring command by grounding itself, isolating a downstream conductor segment, updating data corresponding to the health of the upstream conductor segment, and transmitting health data to an upstream component.

34. The node of claim 33, further comprising a sensor that detects moisture with the node and provides the moisture data to the processor, which incorporates the moisture data into the health data.

35. The node of claim 33, further comprising a sensor that detects the temperature of the node and provides the temperature data to the processor, which incorporates the temperature data into the health data.