Methods, apparatus, and systems for monitoring transmission systems

• US 8,941,491 B2
• Filed: 10/01/2009
• Issued: 01/27/2015
• Est. Priority Date: 06/20/2006
• Status: Active Grant

• Current Assignee: Battelle Energy Alliance LLC (Battelle Memorial Institute)
• Original Assignee: Battelle Energy Alliance LLC (Battelle Memorial Institute)
• Inventors: Polk, Robert E., Svoboda, John M., West, Phillip B., Heath, Gail L., Scott, Clark L.
• Primary Examiner(s): Mehmood, Jennifer
• Assistant Examiner(s): POINT, RUFUS C
• Application Number:
  US12/572,141
• Publication Number:
  US 20100033345A1
• Time in Patent Office: 1,944 Days
• Field of Search: 340/506, 340/524, 340/539.1, 340/870.07, 340/992, 340/963, 340/539, 340/539.22, 340/870.01, 702/183, 713/200, 324/127, 324/512
• US Class Current: 340/539.22
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04Q 2209/86 Performing a diagnostic of the sensing device
• CPC Class Codes: H04Q 2209/88 Providing power supply at the sub-station
• 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

Abstract

A sensing platform for monitoring a transmission system, and method therefor, may include a sensor that senses one or more conditions relating to a condition of the transmission system and/or the condition of an environment around the transmission system. A control system operatively associated with the sensor produces output data based on an output signal produced by the sensor. A transmitter operatively associated with the control system transmits the output data from the control system.

Claims

1. A method for monitoring a transmission system, comprising:

extracting energy from power conveyed by an electric power transmission system and converting the extracted energy to a form useable by a sensing platform disposed near a support tower and on a power transmission line of the electric power transmission system;

sensing an environmental condition with the sensing platform using the extracted energy, the sensed environmental condition indicative of a potential threat by objects or persons to a region surrounding the support tower;

evaluating the sensed condition with the sensing platform to develop potential threat data related to the region surrounding the support tower; and

transmitting the potential threat data in a first direction from the sensing platform to an endpoint receiver.

2. The method of claim 1, wherein the potential threat is selected from the group consisting of a passage of a person within a sensor range of the support tower, a passage of a vehicle within a sensor range of the support tower, and a vibration of the support tower determined by the sensing platform.

3. The method of claim 1, further comprising transmitting from the sensing platform information corresponding to at least one of an identifier for the sensing platform and a location of the sensing platform.

4. The method of claim 1, wherein transmitting the potential threat data further comprises retransmitting the potential threat data in the first direction sequentially through a plurality of sensing platforms positioned at a plurality of locations along the electrical power transmission system between the sensing platform and the endpoint receiver.

5. The method of claim 4, wherein retransmitting the potential threat data in the first direction sequentially through the plurality of sensing platforms further comprises bypassing at least one sensing platform among the plurality of sensing platforms.

6. The method of claim 1, further comprising providing a redundant transmission by transmitting the potential threat data from the sensing platform to an additional endpoint receiver at a different location from the endpoint receiver.

7. The method of claim 6, wherein transmitting to the additional endpoint receiver comprises retransmitting the potential threat data sequentially through an additional plurality of sensing platforms along the electrical power transmission system in a direction different from the first direction.

8. The method of claim 1, further comprising transmitting from the endpoint receiver to the sensing platform reprogramming the threshold levels for the sensing the condition.

9. The method of claim 1, wherein evaluating the sensed condition comprises digitizing the potential threat data.

10. The method of claim 1, wherein evaluating the sensed condition comprises comparing the potential threat data with a threshold level associated with a normal condition to determine an existence of an anomalous condition when the potential threat data is outside of the threshold level.

11. The method of claim 1, wherein evaluating the sensed condition comprises processing the potential threat data using a signal processing technique.

12. The method of claim 11, wherein the signal processing technique comprises a Fast-Fourier Transform.

13. The method of claim 10, further comprising generating a report at a user interface system when there is the existence of the anomalous condition, wherein the user interface system receives the potential threat data from the endpoint receiver.

14. The method of claim 1, wherein transmitting the potential threat data includes transmitting image data from an optical sensor operatively coupled with the sensing platform.

15. A system for monitoring a transmission system, the system comprising:

a plurality of sensing platforms disposed on power transmission lines at locations near support towers of an electrical power transmission system, at least one sensing platform among the plurality of sensing platforms comprising;

a power conversion system configured to extract energy from power conveyed by an electric power transmission system and to convert the extracted energy to a form useable by the sensing platform;

a sensor configured to sense an environmental condition indicative of a potential threat by objects or persons to a region surrounding the sensor'"'"'s nearby support tower;

a control system operatively coupled with the sensor and responsive to an output signal produced by the sensor, the control system configured to produce output data associated with the output signal produced by the sensor and related to the potential threat to the support tower; and

a transceiver operatively coupled with the control system, the transceiver configured to;

transmit the output data from the control system to a nearby sensing platform among the plurality of sensing platforms;

receive information from the nearby sensing platform among the plurality; and

re-transmit the information received from the nearby sensing platform; and

at least one endpoint receiver configured to receive the output data transmitted by the at least one sensing platform among the plurality of sensing platforms.

16. The system of claim 15, wherein the potential threat is selected from the group consisting of a passage of a person within a range of the sensing platform, a passage of a vehicle within another range of the sensing platform, and a vibration of the sensing platform.

17. The system of claim 15, wherein the transceiver is further configured to transmit, receive, and retransmit the output data to a second nearby sensing platform among the plurality, wherein the second nearby sensing platform is in a direction substantially opposite from the nearby sensing platform.

18. The system of claim 15, further comprising an additional endpoint receiver configured to receive a redundant set of the output data transmitted by the at least one sensing platform.

19. The system of claim 15, wherein the at least one sensing platform among the plurality of sensing platforms is disposed on a support structure of the electrical power transmission system.

20. A sensing platform comprising:

a power conversion system configured to extract energy from power conveyed by a power transmission line of an electric power transmission system and to convert the extracted energy to a form useable by the sensing platform;

a sensor configured to sense an environmental condition indicative of a potential threat by objects or persons to a region surrounding a support tower of an electrical power transmission system when disposed on the power transmission line and near the support tower, and to produce an output signal related to the sensed condition;

a control system operatively coupled with the sensor and responsive to the output signal produced by the sensor, the control system configured to produce output data based on the output signal produced by the sensor and related to the potential threat to the support tower; and

a transceiver operatively coupled with the control system and configured to;

receive transmitted data from a second sensing platform;

retransmit the transmitted data to a third sensing platform; and

transmit the output data from the control system to at least one sensing platform in a plurality of sensing platforms.

21. The sensing platform of claim 20, wherein the sensor comprises one or more sensors selected from the group consisting of an accelerometer, an acoustic sensor, an optical sensor, and a temperature sensor.

22. The sensing platform of claim 20, wherein the control system is further configured to compare the sensed condition from the sensor with a threshold level associated with a normal condition to determine an existence of an anomalous condition when the output data is outside of the threshold level.

23. The sensing platform of claim 22, wherein the transceiver is further configured to receive a reprogramming signal from an endpoint receiver, wherein the reprogramming signal from the endpoint receiver reprograms the threshold level used to determine the existence of the anomalous condition.

24. The sensing platform of claim 20, wherein the sensor comprises an optical sensor configured to produce image data of an area near the electrical power transmission system.