Systems, devices, and apparatus for monitoring temperature at remote locations using infrared light

Patent metadata

Field	Value
Publication number	US-10539465-B2
Application number	US-201715473040-A
Country	US
Kind code	B2
Filing date	Mar 29, 2017
Priority date	Mar 29, 2017
Publication date	Jan 21, 2020
Grant date	Jan 21, 2020

Abstract

A remote monitoring system can include a plurality of infrared cables, where each of the infrared cables can have a respective first opening at a first end of the cable and a respective second opening at a second end of the infrared cable that is opposite the first end. The infrared cables can be configured to conduct infrared light emitted from a respective one of a plurality of monitored locations into the respective first opening to exit at the respective second opening. An infrared camera including an infrared sensor array can be optically coupled to each of the second openings of the plurality of infrared cables.

First claim

What is claimed:

1. A remote monitoring system comprising:
a plurality of infrared cables, each of the infrared cables having a respective first opening at a first end of each of the infrared cables and having a respective second opening at a second end of each of the infrared cables that is opposite the first end, the infrared cables configured to conduct infrared light emitted from a respective one of a plurality of monitored locations into the respective first opening to exit at the respective second opening;
an infrared camera including an infrared sensor array optically coupled to each second opening of the plurality of infrared cables, wherein each respective second opening is positioned opposite a respective predetermined sub-array in the infrared sensor array;
a processor circuit coupled to an output of the infrared sensor array, the processing circuit configured to receive respective data for each respective predetermined sub-array in the infrared sensor array; and
an electronic display coupled to the processor circuit, the electronic display configured to provide a representation of the plurality of monitored, locations inside a user defined window and display data indicating a temperature of the one of the plurality of monitored locations, wherein the user defined window comprises a user redefinable window is re-drawable by a user to provide a redrawn window to enclose a schematic representation of a selected one of the plurality of monitored locations and to exclude schematic representations of other ones of the plurality of monitored locations outside the redrawn window and the temperature of the selected one of the plurality of monitored locations includes a minimum temperature among the plurality of monitored locations enclosed by the redrawn window and a maximum temperature among the plurality of monitored locations enclosed by the redrawn window responsive to the plurality of monitored locations enclosed by the user redeemable window and to exclude temperatures of the other ones of the plurality of monitored locations outside the redrawn window.

2. The system of claim 1 further comprising:
an enclosure optically blocking a line of sight between the plurality of monitored locations and the infrared sensor array.

3. The system of claim 2 wherein the plurality of infrared cables pass through an opening in the enclosure.

4. The system of claim 2 wherein a first one of the plurality of monitored locations inside the enclosure is out of a line-of-sight of a second one of the plurality of monitored locations inside the enclosure.

5. The system of claim 2 wherein the enclosure encloses a switchgear.

6. The system of claim 5 wherein the plurality of monitored locations inside the enclosure comprise a plurality of respective breaker contacts.

7. The system of claim 5 wherein the plurality of monitored locations inside the enclosure comprises a bus bar contact and a spot on the bus bar remote from the bus bar contact.

8. The system of claim 7 wherein the infrared camera and at least one of the plurality of monitored locations are out of a line-of-sight with one another.

9. The system of claim 8 wherein the plurality of monitored locations comprise a plurality of respective bus bar contacts.

10. The system of claim 1 wherein each respective first opening is positioned opposite a respective predetermined one of the plurality of monitored locations and spaced apart, separated by filtering material, or hermitically sealed.

11. The system of claim 1 wherein the processing circuit is further configured to determine a respective temperature for each of the respective data.

12. The system of claim 1 wherein the processing circuit is further configured to group each of the respective predetermined sub-arrays together to provide a group and configured to determine a minimum and maximum temperature for the group.

13. The system of claim 1 wherein the infrared camera and the plurality of monitored locations are not separated by an enclosure.

Assignees

• Eaton Intelligent Power Ltd

Inventors

• Patel Pratik Shirish

Classifications

• G01K11/3206

  at discrete locations in the fibre, e.g. using Bragg scattering · CPC title

• G08C23/04

  using light waves, e.g. infrared · CPC title

• G01J5/0821

  Optical fibres · CPC title

• G01J2005/0092

  Temperature by averaging, e.g. by scan · CPC title

• G01K13/06

  in linear movement · CPC title