Apparatus and method of monitoring a power transmission line

• US 6,097,298 A
• Filed: 02/13/1998
• Issued: 08/01/2000
• Est. Priority Date: 02/13/1998
• Status: Expired due to Term

• Current Assignee: Itron, Inc.
• Original Assignee: ECSI Corporation
• Inventors: Brown, Fred A.
• Primary Examiner(s): Lefkowitz, Edward
• Assistant Examiner(s): GOINS, DAVETTA WOODS
• Application Number:
  US09/023,835
• Time in Patent Office: 900 Days
• Field of Search: 340/657, 340/870.07, 340/870.28, 340/870.29, 340/658, 340/660, 340/664, 340/668, 340/548, 340/686.1, 340/686.2, 340/580, 324/126, 324/127, 364/492, 364/481, 364/483
• US Class Current: 340/657
• CPC Class Codes: G01B 21/00 Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
• CPC Class Codes: G01C 15/002 Active optical surveying means optical plumbing G01C15/105
• CPC Class Codes: G01W 1/02 Instruments for indicating weather conditions by measuring two or more variables, e.g. humidity, pressure, temperature, cloud cover or wind speed G01W1/10 takes precedence

Abstract

The present invention includes an apparatus and method of monitoring a power transmission line. According to one embodiment, an apparatus adapted to monitor a power transmission line supported by a plurality of structures includes a first measuring device located at a position in space; and a second measuring device coupled with the power transmission line, the first measuring device and second measuring device being configured to provide position information of the second measuring device relative to the first measuring device.

Claims

1. An apparatus adapted to monitor the position of a power transmission line supported by a plurality of structures, the apparatus comprising:

a first measuring device located at a position in space; and

a second measuring device coupled with the power transmission line, the first measuring device and the second measuring device being configured to provide position information of one of the first measuring device and the second measuring device relative to the other measuring device to monitor the position of the power transmission line.

2. The apparatus according to claim 1 wherein the first measuring device is supported by one of the structures.

3. The apparatus according to claim 1 wherein the first measuring device comprises a distance measuring device and the second measuring device comprises a reflector.

17. The apparatus according to claim 1 wherein the first measuring device comprises a laser and the second measuring device comprises a reflector.

19. The apparatus according to claim 1 wherein the first measuring device and the second measuring device are configured to measure the position of one of the first measuring device and the second measuring device relative to the other measuring device.

4. A method of monitoring the position of a power transmission line, the method comprising:

providing a conductor configured to transmit power intermediate plural locations;

supporting the conductor using plural support structures;

providing a first measuring device and a second measuring device;

coupling the second measuring device with the power transmission line; and

determining the position of one of the first measuring device and the second measuring device relative to the other measuring device to monitor the position of the power transmission line.

5. The method according to claim 4 further comprising determining the position of the first measuring device at a location in space before the determining the position of the second measuring device.

6. The method according to claim 4 further comprising coupling the first measuring device with one of the support structures.

7. The method according to claim 4 further comprising communicating the position of the second measuring device.

8. The method according to claim 7 further comprising receiving a remote command and at least one of the determining and communicating being responsive to the remote command.

9. The method according to claim 4 further comprising selectively triggering an alarm signal responsive to the determining.

10. The method according to claim 4 further comprising generating position information of the conductor responsive to the determining.

11. The method according to claim 4 further comprising determining sag and swing of the conductor responsive to the determining.

18. The method according to claim 4 wherein the providing the first measuring device and the second measuring device comprises providing a laser and a reflector.

20. The method according to claim 4 wherein the determining comprises measuring the position of one of the first measuring device and the second measuring device relative to the other measuring device.

12. A method of monitoring the position of a power transmission line, the method comprising:

providing a conductor configured to transmit power intermediate plural locations;

coupling a measuring device comprising a reflector with the conductor; and

measuring the position of the conductor using the measuring device and another measuring device comprising a laser located at a fixed position.

13. The method according to claim 12 further comprising generating position information of the conductor responsive to the measuring.

14. The method according to claim 13 further comprising communicating the position information of the conductor.

15. The method according to claim 12 further comprising determining sag and swing of the conductor responsive to the measuring.

16. The method according to claim 12 further comprising selectively triggering an alarm signal responsive to the measuring.