Methods, apparatus, and systems for monitoring transmission systems

• US 7,786,894 B2
• Filed: 06/20/2006
• Issued: 08/31/2010
• 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: Svoboda, John M., Heath, Gail L., Scott, Clark L., Polk, Robert E., West, Phillip B.
• Primary Examiner(s): Edwards, Jr.; Timothy
• Application Number:
  US11/425,287
• Publication Number:
  US 20080024321A1
• Time in Patent Office: 1,533 Days
• Field of Search: 340/870.07, 340/870.11, 702/183, 702/185
• US Class Current: 340/870.07
• 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 sensing platform for monitoring a transmission system, comprising:

a sensor configured for sensing one or more conditions selected from the group consisting essentially of;

a condition of the transmission system; and

a condition of an environment around the transmission system, the sensor further configured for producing an output signal related to the sensed condition;

a control system operatively associated with the sensor and responsive to the output signal produced by the sensor, the control system configured for;

producing output data based on the output signal produced by the sensor;

comparing the output data with at least one threshold condition indicative of a normal condition;

determining an anomalous condition for at least one of the transmission system and the environment around the transmission system responsive to the comparing; and

generating information related to the anomalous condition;

a transceiver operatively associated with the control system and configured for receiving transmitted data from a second sensing platform, retransmitting the transmitted data to a third sensing platform, and transmitting the information related to the anomalous condition from the control system to at least one of the second sensing platform and the third sensing platform; and

a power conversion system operatively associated with the transmission system and configured for extracting energy from a medium intended to be conveyed by the transmission system and converting the extracted energy into a form useable by the sensing platform.

2. The sensing platform of claim 1, wherein the sensor comprises one or more sensors selected from the group consisting essentially of an accelerometer, an acoustic sensor, an optical sensor, and a temperature sensor.

3. The sensing platform of claim 1, wherein:

the sensor comprises an accelerometer for sensing movement of the sensing platform; and

the control system is further configured for determining the anomalous condition for the environment around the transmission system by;

computing a power spectrum and an impulse energy for the sensed movement;

comparing the power spectrum and the impulse energy to threshold information associated with potentially threatening activity programmed in the control system; and

determining the anomalous condition responsive to the comparison.

4. The sensing platform of claim 1, wherein the sensor comprises an infrared detector for sensing infrared light emitted by objects or persons;

and

the control system is further configured for determining the anomalous condition for the environment around the transmission system by;

comparing the output data to threshold information associated with potentially threatening activity from the objects or persons programmed in the control system; and

determining the anomalous condition responsive to the comparison.

5. The sensing platform of claim 1, wherein the transceiver comprises a radio-frequency transmitter and receiver.

6. The sensing platform of claim 1, wherein the transmission system comprises an electrical power transmission system and wherein the power conversion system comprises an inductive converter for converting the medium of AC electricity.

7. A sensing platform for monitoring a transmission system, comprising:

a sensor configured for sensing one or more conditions selected from the group consisting essentially of;

a condition of the transmission system; and

a condition of an environment around the transmission system, the sensor further configured for producing an output signal related to the one or more conditions sensed;

a control system operatively associated with the sensor and responsive to the output signal produced by the sensor, the control system configured for;

producing output data based on the output signal produced by the sensor;

comparing the output data with at least one threshold condition indicative of a normal condition;

determining an anomalous condition for at least one of the transmission system and the environment around the transmission system responsive to the comparing; and

generating information related to the anomalous condition;

a transmitter operatively associated with the control system and configured for transmitting the information related to the anomalous condition from the control system to another sensing platform; and

a receiver configured for receiving transmitted signals from the other sensing platform.

8. The sensing platform of claim 7, wherein the receiver and the transmitter comprise a transceiver.

9. A system for monitoring a transmission system, comprising:

a plurality of sensing platforms operatively associated with the transmission system at a corresponding plurality of locations along the transmission system, each of the plurality of sensing platforms comprising;

a sensor configured for sensing one or more conditions selected from the group consisting essentially of;

a condition of the transmission system; and

a condition of an environment around the transmission system, the sensor further configured for producing an output signal related to the one or more conditions sensed;

a control system operatively associated with the sensor and responsive to the output signal produced by the sensor, the control system configured for;

producing output data based on the output signal produced by the sensor;

comparing the output data with at least one threshold condition indicative of a normal condition;

determining an anomalous condition for at least one of the transmission system and the environment around the transmission system responsive to the comparing; and

generating information related to the anomalous condition; and

a transceiver operatively associated with the control system, the transceiver configured for;

transmitting the information related to the anomalous condition from the control system to a nearby sensing platform among the plurality of sensing platforms;

receiving information from the nearby sensing platform of the plurality; and

retransmitting the information received from the nearby sensing platform; and

at least one endpoint receiver configured for receiving the information related to the anomalous condition transmitted by at least one sensing platform of the plurality of sensing platforms.

10. The system of claim 9, further comprising a user-interface system operatively associated with the at least one endpoint receiver.

11. The system of claim 9, wherein the transceiver in each sensing platform of the plurality is further configured for transmitting, receiving, and retransmitting the output data in both directions along the transmission system.

12. A monitoring method, comprising:

sensing one or more conditions using a sensing platform positioned at a first location proximate a transmission system, the one or more conditions selected from the group consisting essentially of;

a condition of the transmission system; and

a condition of an environment around the transmission system;

determining an anomalous condition for at least one of the transmission system and the environment around the transmission system by;

comparing data related to the sensed one or more conditions to at least one threshold condition indicative of a normal condition; and

generating information related to the anomalous condition;

transmitting the information related to the anomalous condition to a nearby sensing platform positioned at a second location proximate the transmission system but at a second location along the transmission system; and

retransmitting the data related to the information related to the anomalous condition from the nearby sensing platform to an additional nearby sensing platform at a third location proximate the transmission system but at a third location along the transmission system.

13. The method of claim 12, further comprising:

determining the anomalous condition for the environment around the transmission system by;

comparing the data related to the sensed one or more conditions to threshold information associated with potentially threatening activity from objects or persons; and

determining the anomalous condition responsive to the comparison.

14. The method of claim 12, further comprising:

receiving the transmitted data related to the information related to the anomalous condition at an intermediate transceiver positioned along the transmission system;

re-transmitting data related to the information related to the anomalous condition from the intermediate transceiver; and

receiving the re-transmitted data at an endpoint receiver.

15. The method of claim 12, wherein transmitting data related to the information related to the anomalous condition comprises transmitting radio frequency signals.

16. The method of claim 12, wherein the transmission system comprises a power transmission system having power lines and wherein transmitting comprises transmitting via the power lines.

17. A sensing platform, comprising:

sensor means for sensing one or more conditions selected from the group consisting essentially of;

a condition of a transmission system; and

a condition of an environment around the transmission system,

and for producing an output signal related to the one or more sensed conditions;

means for controlling the sensing platform, operatively associated with the sensor means, for;

operating the sensor means;

processing the output signal from the sensor means to produce output data;

comparing the output data with at least one threshold condition indicative of a normal condition;

determining an anomalous condition responsive to the comparing for at least one of the transmission system and the environment around the transmission system; and

generating information related to the anomalous condition;

means for receiving monitored data from another sensing platform positioned at another location along the transmission system;

means for transmitting the information related to the anomalous condition and the monitored data from the other sensing platform; and

means for extracting energy from transmission of a medium intended to be conveyed by the transmission system and converting the extracted energy into a form useable by the sensing platform.