Measurement methods and apparatus

• US 20050057745A1
• Filed: 09/14/2004
• Published: 03/17/2005
• Est. Priority Date: 09/17/2003
• Status: Abandoned Application

• Current Assignee: GEOSCAN Technologies LLC
• Original Assignee: GEOSCAN Technologies LLC
• Inventors: Bontje, Douglas A.
• Application Number:
  US10/940,368
• Publication Number:
  US 20050057745A1
• Time in Patent Office: Days
• US Class Current: 356/139.30
• CPC Class Codes: G01C 15/002 Active optical surveying means optical plumbing G01C15/105

Abstract

A measurement device is provided that allows for determining distance, range and bearing of a target of interest. The distance, range and bearing to the target of interest are determined relative to the position of the measurement device and are stored in memory. The device is further operative to translate these relative positions of the target to an absolute position at the time of measurement, or, when the position of the measurement device becomes known. The absolute position of the measurement device may be determined utilizing GPS technologies or through the measurement of geophysical reference points. Measurement of the relative location of target(s) of interest is performed utilizing an electronic range finding device and elevation and heading sensors. The resulting information is stored in memory for conversions to vector information that may be utilized to generate, for instance, topographical images.

Claims

1. A measurement device, comprising:

an electronic range finding device operative to determine;

a first distance between said device and a ground reference point;

a second distance between said device and a geophysical point of interest;

a sensor operative to identify at least one angular orientation of said electronic range finding device relative to a predetermined frame of reference; and

a processor operatively interconnected to said electronic range finding device and said sensor, said processor being operative to utilize said first distance, said second distance and said at least one angular orientation to calculate vector information between said ground reference point and said geophysical point of interest.

2. The device of claim 1, wherein said electronic range finding device comprises a laser and a detector.

3. The device of claim 2, wherein said laser is a visible laser.

4. The device of claim 2, wherein said laser is an infrared laser.

5. The device of claim 1, further comprising:

a sighting device for use in identifying said geophysical point of reference.

6. The device of claim 5, wherein said sighting device comprises a marking laser operative to project a visible mark onto said geophysical point of reference.

7. The device of claim 5, wherein said sighting device comprises a digital camera operative to generate a digital image of said geophysical point of reference.

8. The device of claim 7, wherein said digital camera further includes at least one of:

an optical magnification feature; and

a digital magnification feature.

9. The device of claim 7, wherein said processor is operative to superimpose modeled data onto said digital image.

10. The device of claim 1, further comprising:

a memory for storing at least said vector information.

11. The device of claim 10, wherein said memory is operative to store an array of vectors associated with a plurality of geophysical points of interest.

12. The device of claim 11, wherein said processor is operative to utilize said array of vectors to generate a topological rendering of a geophysical area including said plurality of geophysical points of interest.

13. The device of claim 1, wherein said processor is operative to utilize said vector information to generate geodetic location information for said geophysical point of interest.

14. The device of claim 13, wherein said device further comprises:

a location determination device operative to determine the geodetic location of said device.

15. The device of claim 14, wherein said location determination device comprises a GPS device.

16. The device of claim 1, wherein said electronic range finding device comprises a first laser, a second laser and at least one detector.

17. The device of claim 16, wherein said first laser is operative to determine said first distance and said second laser is operative to determine said second distance.

18. The device of claim 17, wherein said sensor is operative to identify at least one angular orientation for each of said first and second lasers.

19. The device of claim 18, wherein said processor is operative to utilize said first distance and said at least one angular orientation for said first laser to determine a height of said device above said ground reference point.

20. The device of claim 1, wherein said sensor is operative to provide two axis of angular orientation information.

21. The device of claim 20, wherein said sensor is operative to provide azimuth and elevation information.

22. The device of claim 20, wherein said sensor comprises a first sensor associated with a first axis and a second sensor associated with a second axis.

23. The device of claim 22, wherein said first sensor comprises a tilt meter and said second sensor comprises a heading meter.

24. The device of claim 1, further comprising:

a self leveling tripod assembly for supporting said device.

25. The device of claim 24, wherein said self leveling tripod includes a ball joint assembly.

26. The device of claim 25, further comprising:

an optical imager for monitoring a position of a mounting ball of said ball joint assembly, said optical imager being further operative to generate an output corresponding to said position.

27. The device of claim 26, wherein said output of said optical imager is indicative of the angular orientation of said electronic range finding device relative to a predetermined frame of reference.

28. The device of claim 1, further comprising:

a data link for exchanging data.

29. The device of claim 28, wherein said data link is a wireless data link.

30. A measurement device, comprising:

a digital camera operative to generate a digital image of a point of interest;

a display operatively interconnected to said digital camera, said display being operative to display said digital image; and

an electronic range finding device operative to determine a distance and a relative angular position between said device and said point of interest.

31. The device of claim 30, wherein said electronic range finding device comprises:

a laser;

a detector; and

a sensor operative to identify at least one angular orientation of a projection path of said laser relative to a predetermined frame of reference.

32. The device of claim 31, further comprising:

a processor operatively interconnected to said laser, said detector and said sensor, said processor being operative to utilize said distance and said at least one angular orientation to calculate vector information between said device and said point of interest.

33. The device of claim 32, wherein said processor is operative to superimpose data onto said digital image.

34. The device of claim 33, wherein said data comprises modeled data.

35. The device of claim 34, wherein said processor is operative to link a reference point within said modeled data to said point of interest.

36. The device of claim 30, further comprising:

a memory for storing at least one of said distance, said relative angular position and said digital image.

37. The device of claim 36, wherein said memory is operative to store an array of distances and relative angular positions associated with a plurality of points of interest.

38. The device of claim 30, wherein said device is operative to utilize said distance and relative angular position to generate geodetic location information for said point of interest.

39. The device of claim 30, wherein said digital camera includes at least one of:

an optical magnification feature; and

a digital magnification feature.

40. The device of claim 30, further comprising:

a sighting device for use in identifying said geophysical point of reference.

41. The device of claim 40, wherein said sighting device comprises a marking laser operative to project a visible mark onto said geophysical point of reference.

42. A method for associating modeled data with geophysical locations, comprising:

identifying a reference point within a geophysical area;

based on said reference point, associating modeled data with said geophysical area;

selecting a point of interest from said modeled data; and

projecting a visible mark onto a geophysical point within said geophysical area that corresponds to said point of interest.

43. The method of claim 42, wherein said identifying step comprises:

determining a relative position of said reference point to at least one known geodetic point of reference.

44. The method of claim 42, wherein said identifying step comprises determining the geodetic location of said reference point utilizing a location determination device.

45. The method of claim 42, wherein said identifying step comprises determining the GPS location of said reference point.

46. The method of claim 42, wherein said associating step comprises linking at least a first point of said modeled data to said reference point.

47. The method of claim 42, wherein said projecting said visible mark step further comprises:

repositioning a projection device such that said visible mark may be projected on said point.

48. The method of claim 47, further comprising:

providing a user prompt for use in repositioning said device.

49. The method of claim 42, further comprising:

providing information relating to the location of said geophysical point relative to the surface of said geophysical area.

50. A method for creating graphical representations of a geophysical area, comprising:

moving a range finding laser between first and second positions in a geophysical area, wherein said range finding laser is positioned at a reference position; and

acquiring a series of data inputs as said range finding laser moves between said first and second positions, wherein said series of data input includes;

a series of distances between said reference position and a series of projection positions of said laser on said geophysical area; and

a series of angular relationships of said series of projection positions relative to said reference position;

51. The method of claim 50, further comprising:

based on said data inputs generating a series of vectors between at least one of;

said reference position and said projection positions; and

at least two projection positions.

52. The method of claim 51, further comprising:

generating a rendering of said geophysical area based on said series of vectors.

53. A measurement device, comprising:

a first electronic range finding device operative to determine at least a vertical distance between said device and a ground reference point;

a second electronic range finding device operative to determine a second distance between said device and a geophysical point of interest;

a sensor operative to identify first and second angular orientations of said first and second electronic range finding devices, respectively, relative to a predetermined frame of reference; and

a processor operatively interconnected to said first and second electronic range finding devices and said sensor, said processor being operative to utilize said first distance, said second distance and said first and second angular orientations to calculate vector information between said ground reference point and said geophysical point of interest.