Infrared thermography system including mobile unit

• US 5,386,117 A
• Filed: 06/07/1993
• Issued: 01/31/1995
• Est. Priority Date: 06/07/1993
• Status: Expired due to Term

• Current Assignee: CSI Technology Incorporated (Emerson Electric Company)
• Original Assignee: Computational Systems Incorporated (Emerson Electric Company)
• Inventors: Heise, Brian D., Piety, Kenneth R., Battenberg, Rexford A., King, Willie T.
• Primary Examiner(s): Hannaher, Constantine
• Assistant Examiner(s): Glick, Edward J.
• Application Number:
  US08/073,132
• Time in Patent Office: 603 Days
• Field of Search: 250/330, 250/332, 250/342, 250/358.1, 374/4, 374/124, 374/133, 374/137, 358/113, 348/164, 348/165, 348/166, 348/167, 348/168
• US Class Current: 250/330
• CPC Class Codes: G01N 25/72 Investigating presence of flaws

Abstract

A system including a mobile infrared thermography unit and a base station for automating the collection of thermographic data and for facilitating the efficient generation of reports. The mobile infrared thermography unit includes an infrared camera, a storage device such as a videotape recorder for at least recording thermographic images captured by the infrared camera, and a mobile unit computer. The mobile unit computer includes a touch screen display for presenting information to a thermographer and for receiving data and command inputs from the thermographer. The mobile unit computer is interfaced to the infrared camera or the videotape recorder for maintaining a record, either by tape position or date/time stamp, where thermographic images of particular equipment are recorded. The mobile unit computer includes a display operable to prompt the thermographer with route information regarding particular equipment to be thermographically inspected, as well as to suggest to the thermographer particular problems possibly indicated by a particular thermographically-observed condition. The base station includes a base station computer which transfers information to the mobile unit computer prior to undertaking an inspection route, and receives information from the mobile unit computer when the route is completed. The base station computer is capable of directly accessing and downloading particular infrared images recorded by the videotape recorder, employing the tape position or date/time stamp information.

Claims

1. A mobile infrared thermography unit comprising:

an infrared camera;

a visible image camera;

a storage device for recording at least images;

a switch for selectively connecting either said infrared camera or said visible image camera to said storage device for thermographic or visible image recording; and

a data processing device interfaced to at least one of said infrared camera, said visible image camera and said storage device for at least maintaining a record of identifying information related to recorded images;

said data processing device being interfaced to said switch for monitoring whether an infrared or a visible image is being recorded.

2. A mobile infrared thermography unit in accordance with claim 1, which further comprises a microphone connected to said storage device such that comments related to a particular thermographic or visible image may be recorded with the image.

3. A mobile infrared thermography unit in accordance with claim 1, wherein said data processing device includes a touch screen.

4. A mobile infrared thermography unit in accordance with claim 1, wherein said data processing device is operable to prompt a user to enter notes and to record user notes.

5. A mobile infrared thermography unit comprising:

an infrared camera;

a storage device for at least recording thermographic images captured by said infrared camera; and

a data processing device including a display and operable to prompt a user of said unit through indications on said display regarding particular equipment to be thermographically inspected.

6. A mobile infrared thermography unit in accordance with claim 5, wherein said data processing device is further operable through indications on said display to suggest to a user at least one candidate problem indicated by a particular thermographically-observed condition.

7. A mobile infrared thermography unit in accordance with claim 5, wherein said data processing device is operable to prompt a user through indications on said display to enter notes and to record user notes employing predetermined templates.

8. A mobile infrared thermography unit in accordance with claim 5, wherein said data processing device includes a touch screen.

9. A mobile infrared thermography unit in accordance with claim 5, wherein said data processing device is interfaced to at least one of said infrared camera and said storage device for at least maintaining a record of identifying information related to recorded thermographic images.

10. A mobile infrared thermography unit in accordance with claim 5, which further comprises:

a visible image camera; and

a switch for selectively connecting either said infrared camera or said visible image camera to said storage device for image recording.

11. A mobile infrared thermography unit in accordance with claim 10, wherein said data processing device is interfaced to said switch for monitoring whether an infrared or a visible image is being recorded.

12. A mobile infrared thermography unit in accordance with claim 10, which further comprises a microphone connected to said storage device such that comments related to a particular thermographic or visible image may be recorded with the image.

13. A mobile infrared thermography unit in accordance with claim 5, which further comprise at least one interface between said data processing device and an external measurement instrument.

14. A mobile infrared thermography unit in accordance with claim 13, wherein the external measurement instrument comprises a temperature measuring device.

15. A mobile infrared thermography unit in accordance with claim 13, wherein the external measurement instrument comprises a current measuring device.

16. A mobile infrared thermography unit in accordance with claim 5, which further comprises a RMS AC current measurement interface to said data processing device.

17. A mobile infrared thermography unit in accordance with claim 5, which further comprises a voltage measurement interface to said data processing device.

18. A mobile infrared thermography unit in accordance with claim 5, wherein said data processing device is operable to prompt a user through indications on said display to record all information needed to generate a final report in the event a fault is discovered.

19. A mobile infrared thermography unit in accordance with claim 5, wherein said data processing device is operable to prompt a user through indications on said display with information selected from the group consisting of location information for fault location on equipment with large dimensions, and instruction information regarding camera setup for particular measurement points.

20. A mobile infrared thermography unit comprising:

an infrared camera;

a storage device for recording thermographic images captured by said infrared camera; and

a data processing device including a display and operable through indications on said display to suggest to a user at least one candidate problem indicated by a particular thermographically-observed condition.

21. An infrared thermography system comprising:

a base station;

a mobile thermographic unit at least selectably connectable to said base station;

said mobile thermographic unit including an infrared camera, a mobile unit storage device for at least recording thermographic images captured by said infrared camera and a mobile unit data processing device including a display and operable to prompt a user of said unit through indications on said display regarding particular equipment to be thermographically inspected; and

said base station including a base station data processing device operable, when said mobile thermographic unit is connected to said base station, to upload user prompting information to said mobile unit data processing device.

22. An infrared thermography system in accordance with claim 21, wherein said mobile unit data processing device is further operable through indications on said display to suggest to a user at least one candidate problem indicated by a particular thermographically-observed condition.

23. An infrared thermography system in accordance with claim 21, wherein said mobile unit data processing device is operable to prompt a user through indications on said display to enter notes and to record user notes employing predetermined templates.

24. An infrared thermography system in accordance with claim 21, wherein said mobile unit data processing device is operable to prompt a user through indications on said display to record all information needed to generate a final report in the event a fault is discovered.

25. An infrared thermography system in accordance with claim 21, wherein said mobile unit data processing device is operable to prompt a user through indications on said display with information selected from the group consisting of location information for fault location on equipment with large dimensions, and instruction information regarding camera setup for particular measurement points.

26. An infrared thermography system in accordance with claim 21, wherein said base station data processing device is further operable to prepare inspection reports based on equipment thermographically inspected by the user.