Cable assembly for providing power through inductive coupling

• US 9,544,023 B2
• Filed: 03/21/2014
• Issued: 01/10/2017
• Est. Priority Date: 03/22/2013
• Status: Active Grant

• Current Assignee: Syscor Controls & Automation, Inc. (Enbridge Incorporated)
• Original Assignee: Syscor Controls & Automation, Inc. (Enbridge Incorporated)
• Inventors: Tzonev, Nikolay Nikolov, Shpak, Dale John, Sime, David William
• Primary Examiner(s): Kitov, Zeev V
• Application Number:
  US14/221,521
• Publication Number:
  US 20140285028A1
• Time in Patent Office: 1,026 Days
• US Class Current: 1/1
• CPC Class Codes: H04B 5/22 Capacitive coupling
• CPC Class Codes: H04B 5/24 Inductive coupling
• CPC Class Codes: H04B 5/28 using the near field of leaky cables, e.g. of leaky coaxial cables
• CPC Class Codes: H04B 5/70 specially adapted for specific purposes
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04B 5/77 for interrogation
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

A Cable Assembly for supplying power includes wiring for carrying alternating electrical current, a plurality of Source Inductive Elements spaced at intervals along the wiring to provide power by induction; and an encapsulation layering that provides electrical insulation.

Claims

1. A Cable Assembly for supplying power, comprising:

an elongated cable body having a length of from several meters to several kilometers, the cable body comprising in combination;

wiring for carrying alternating electrical current;

a plurality of Source Inductive Elements spaced at intervals along the wiring to provide power by induction, and the spacing of the plurality Source Inductive Elements creating distinct induction sites, along the length of the cable body, capable of providing power by induction to a plurality of distinct power consuming nodes located at spaced intervals; and

an encapsulation layering that provides electrical insulation;

a monitoring system having a plurality of Monitoring Nodes, each of the Monitoring Nodes is powered by inductive coupling of a Sink Inductive Element to one of said Source inductive Elements, and each of the Monitoring Nodes monitors signals from at least one sensor, the at least one sensor including a chemical sensor for detecting hydrocarbons.

2. The Cable Assembly of claim 1 wherein each said Source Inductive Element is in series with said wiring.

3. The Cable Assembly of claim 1 wherein said wiring minimally comprises two wires and each said Source Inductive Element is connected between two said wires.

4. The Cable Assembly of claim 1 wherein said wiring minimally comprises two wires and wherein some of said Source Inductive Elements are connected in series with any of said wires and the remainder of said Source Inductive Elements are connected between any two said wires.

6. The Cable Assembly of claim 1, wherein the monitoring system additionally comprises means for transmission of a communications signal along said wiring wherein said communications signal is inductively coupled between said Monitoring Node and any said wires that carry alternating electrical current.

9. The Cable Assembly of claim 1, wherein the chemical sensor is a polymer absorption sensor.

5. A cable Assembly for supplying power, comprising:

an elongated cable body from several meters to several kilometers in length, the cable body comprising in combination;

wiring for carrying alternating electrical current;

a plurality of Source Inductive Elements spaced at intervals along the wiring to provide power by induction, the spacing of the plurality Source Inductive Elements creating distinct induction sites along the length of the cable body capable of providing power by induction to a plurality of distinct power consuming nodes located at spaced intervals;

an encapsulation layering that provides electrical insulation; and

a monitoring system having a plurality of Monitoring Nodes, each of the Monitoring Node is powered by inductive coupling of a Sink Inductive Element to one of said Source Inductive Elements, and each of said Monitoring Node monitors signals from at least one sensor, the monitoring system additionally comprises a location device selected from one of a GPS receiver or RFID device that is used to provide positional information.

7. A Cable Assembly for supplying power, comprising:

an elongated cable body from several meters to several kilometers in length, the cable body comprising in combination;

wiring for carrying alternating electrical current;

a plurality of Source Inductive Elements spaced at intervals along the wiring to provide power by induction, the spacing of the plurality Source Inductive Elements creating distinct induction sites along the length of the cable body capable of providing power by induction to a plurality of distinct power consuming nodes located at spaced intervals;

an encapsulation layering that provides electrical insulation; and

a monitoring system having a plurality of Monitoring Nodes, each of the Monitoring Nodes is powered by inductive coupling of a Sink Inductive Element to one of said Source Inductive Elements, and each of the Monitoring Nodes monitors signals from at least one sensor, the monitoring system additionally comprises means for transmission of a communications signal along wires that are dedicated to the purpose of communications wherein said communications signal is inductively coupled between said Monitoring Node and said wires.

8. A Cable Assembly for supplying power, comprising:

an elongated cable body from several meters to several kilometers in length, the cable body comprising in combination;

wiring for carrying alternating electrical current;

a plurality of Source Inductive Elements spaced at intervals along the wiring to provide power by induction, the spacing of the plurality of Source Inductive Elements creating distinct induction sites along the length of the cable body capable of providing power by induction to a plurality of distinct power consuming nodes located at spaced intervals;

an encapsulation layering that provides electrical insulation; and

a monitoring system having a plurality of Monitoring Nodes, each of the Monitoring Node is powered by inductive coupling of a Sink Inductive Element to one of said Source Inductive Elements, and each of the Monitoring Nodes monitors signals from one or more sensors, wherein the one or more sensors includes an accelerometer monitoring at geological displacement and vibrational events.

10. A Cable Assembly for supplying power, comprising:

an elongated cable body from several meters to several kilometers in length, the cable body comprising in combination;

wiring for carrying alternating electrical current;

a plurality of Source Inductive Elements spaced at intervals along the wiring to provide power by induction, the spacing of the plurality Source Inductive Elements creating distinct induction sites along the length of the cable body capable of providing power by induction to a plurality of distinct power consuming nodes located at spaced intervals;

an encapsulation layering that provides electrical insulation; and

a monitoring system having plurality of Monitoring Nodes, each of the Monitoring Nodes is powered by inductive coupling of a Sink Inductive Element to one of said Source Inductive Elements, and each of the Monitoring Nodes monitors signals from at least one sensor, the monitoring system additionally comprises means for transmission of a communications signal along said wiring, said communications signal is inductively coupled between said Monitoring Node and any of said wires that carry alternating electrical current, wherein data transmission along said wiring is realized using frequency-division multiplexing.