MEASURING DEVICE SET AND METHOD FOR DOCUMENTING A MEASUREMENT

• US 20120207395A1
• Filed: 02/09/2012
• Published: 08/16/2012
• Est. Priority Date: 02/09/2011
• Status: Abandoned Application

• Current Assignee: Testo AG
• Original Assignee: Testo AG
• Inventors: Stratmann, Martin, Evers-Senne, Jan-Friso
• Application Number:
  US13/369,674
• Publication Number:
  US 20120207395A1
• Time in Patent Office: Days
• US Class Current: 382/195
• CPC Class Codes: G01B 11/24 for measuring contours or curvatures
• CPC Class Codes: G01B 21/045 Correction of measurements G01B9/02055 takes precedence

Abstract

A measuring device set (1) with a measuring device (2) and markers (6), that include an identification region (10) and a data region (7), containing the information to be read out, on the markers (6). The measuring device (2) has a recording unit (14), for recording (15) the marker (6) during the measurement (3) or in addition to the measurement (3), and an evaluation unit, for identifying the identification region (10) and for extracting the data from the data region (7) which is in a predetermined relative position to the identification region (10).

Claims

1. A measuring device set (1), comprising a and-held measuring device (2) and a marker (6) that is adapted to be applied on an examination object (5), the measuring device (2) being designed to measure (3) at least one physical measurement variable of the examination object (5), the marker (6) includes a data region (7) with information in an optically evaluable code (8) and an identification region (10), the measuring device includes a recording unit (14), which is designed to record (15) an image of the examination object (5) with the marker (6), and an evaluation unit (16), which is designed to identify the identification region (10) in the image, identify the data region (7) relative to the identified identification region (10) in the image, and extract the information from the imaged data region (7).

2. The measuring device set (1) as claimed in claim 1, wherein at least one of:

the identification region (10) adjoins the data region (7), the identification region (10) forms an edge around the data region (7), or the marker (6) is formed on a label (22).

3. The measuring device set (1) as claimed in claim 1, wherein the label (22) is a self adhesive label.

4. The measuring device set (1) as claimed in claim 1, wherein the identification region (10) is embodied as a polygon.

5. The measuring device set (1) as claimed in claim 4, wherein the evaluation unit includes at least one of a corner detector or is designed to determine a perspective distortion in the image by evaluating image positions of at least one of corners (11) or edges (12) of the identification region (10) in the image.

6. The measuring device set (1) as claimed in claim 1, wherein the measuring device set (1) comprises a plurality (19) of the markers (6), with the respective identification regions (10) having identical embodiments with respect to one another and the data regions (7) having embodiments that differ from one another.

7. The measuring device set (1) as claimed in claim 1, wherein the measuring device (2) further comprises a memory unit (18) in which metadata associated with the information that can be encoded in the data region (7) are kept available.

8. The measuring device set (1) as claimed in claim 7, wherein the measuring device (2) further comprises a documentation unit (21), which is designed to output at least one measurement result, measured by the measuring device (2), and metadata that are associated with the information.

9. The measuring device set (1) as claimed in claim 1, wherein the measuring device (2) further comprises a documentation unit (21), which is designed to output at least one measurement result, measured by the measuring device (2), and metadata that are associated with the information.

10. The measuring device set (1) as claimed in claim 1, wherein the optically evaluable code is embodied as at least one of a light/dark code (8), a color code, or pixels (9) in a grid arrangement.

11. The measuring device set (1) as claimed in claim 10, wherein the optically evaluable code comprises the grid arrangement having a 5×

5 matrix.

12. The measuring device set (1) as claimed in claim 1, wherein at least one of the identification region (10) has a structure size that equals the structure size of the code (8) or a resolution of the code (8) is matched to an image resolution of the recording unit (14).

13. The measuring device set (1) as claimed in claim 12, wherein the resolution of the code (8) is matched to the image resolution of the recording unit (14) at an imaging distance defined by a distance between the measuring device (2) and the examination object (5) in a usage position.

14. The measuring device set (1) as claimed in claim 1, wherein the recording unit (14) comprises a VIS camera.

15. The measuring device set (1) as claimed in claim 14, wherein the measuring device (2) is embodied as a thermal imaging camera.

16. The measuring device set (1) as claimed in claim 1, wherein the measuring device (2) is embodied as a thermal imaging camera.

17. A method for documenting a measurement (3), comprising applying a marker (6) with a data region (7) and an identification region (10) to an examination object (5), recording an image of the examination object (5) with the marker (6), identifying the identification region (10) in the image using image processor (17), and extracting information in the image from the data region (7) at a predetermined relative position to the identified identification region (10) using the image processor (17), wherein at least one measured value of a physical variable is measured and at least one of the information or metadata derived from the information are associated with the measured value.

18. The method as claimed in claim 17, wherein the measurement (3) and the image recording (15) are carried out simultaneously or with a small time-lag with respect to one another, wherein at least one of corner or edge detection is carried out when identifying the identification region (10), wherein at least one of a perspective distortion of the image is determined by image processor (17), from a shape of the identified identification region (10) in the image or a perspective distortion of the data region (7) in the image is compensated for by the image processor, before extracting the information.