Geographic data collecting system

• US 20070008515A1
• Filed: 06/26/2006
• Published: 01/11/2007
• Est. Priority Date: 07/11/2005
• Status: Active Grant

• Current Assignee: Topcon KK
• Original Assignee: Kabushiki Kaisha Topcon
• Inventors: Ishida, Takeshi, Tanahashi, Atsushi, Kaneko, Junki, Otani, Hitoshi, Inaba, Hiroshi
• Granted Patent: US 7,933,001 B2
• Time in Patent Office: Days
• US Class Current: 356/5.20
• CPC Class Codes: G01C 11/00 Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
• CPC Class Codes: G01C 11/14 with optical projection G01C11/26 takes precedence
• CPC Class Codes: G01C 15/00 Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
• CPC Class Codes: G01C 21/005 with correlation of navigation data from several sources, e.g. map or contour matching G01C21/30 takes precedence
• CPC Class Codes: G01C 3/00 Measuring distances in line of sight; Optical rangefinders tapes, chains or wheels for measuring length G01B3/00; active triangulation systems, i.e. using the transmission and reflection of electromagnetic waves other than radio waves, G01S17/48

Abstract

A geographic data collecting system, comprising a distance measuring unit for projecting a distance measuring light and for measuring a distance to an object to be measured, a camera for taking an image in measuring direction, a display unit for displaying the pickup image, a touch panel provided to correspond to a screen position of the display unit, a tilt sensor for detecting a tilting of the measuring direction, and an arithmetic unit for calculating a distance to the object to be measured by giving consideration on the tilting in the measuring direction and a point-to-point distance as specified on the image by specifying two or more points of the object to be measured on a displayed image via the touch panel.

Claims

1. A geographic data collecting system, comprising a distance measuring unit for projecting a distance measuring light and for measuring a distance to an object to be measured, a camera for taking an image in measuring direction, a display unit for displaying the pickup image, a touch panel provided to correspond to a screen position of said display unit, a tilt sensor for detecting a tilting of the measuring direction, and an arithmetic unit for calculating a distance to the object to be measured by giving consideration on the tilting in the measuring direction and a point-to-point distance as specified on the image by specifying two or more points of the object to be measured on a displayed image via said touch panel.

2. A geographic data collecting system according to claim 1, further comprising a GPS unit for measuring a coordinate position and an azimuth sensor for detecting a measuring direction, wherein said arithmetic unit calculates the coordinate position of the object to be measured based on the measured coordinate position, a detected azimuth, and a measured distance to the object to be measured.

3. A geographic data collecting system according to claim 2, further comprising a receiving unit for receiving a correction information for correcting the measured value of said GPS unit, wherein said arithmetic unit calculates the coordinate position of the object to be measured based on the measured value corrected by the correction information.

4. A geographic data collecting system according to claim 3, wherein the correction information is received by a handy phone and is transmitted by the transmitting function of the handy phone.

5. A geographic data collecting system according to claim 1, wherein a cursor is displayed on the displayed image, the cursor indicates a center of a measurement, the cursor on the image is aligned with the object to be measured, a measurement of the distance is performed by projecting the distance measuring light from said distance measuring unit.

6. A geographic data collecting system according to claim 1 or 4, wherein the distance measuring light projected for the measurement is a visible light.

11. A geographic data collecting system according to claim 1 or 7 or 10, wherein a display on a display screen of said display unit is divided into two or more displays and wherein an enlarged view including a measuring point is displayed on at least one display.

12. A geographic data collecting system according to claim 1 or 7 or 10, wherein a display on a display screen of said display unit is divided into two or more displays and wherein at least one display includes an image for indicating measuring direction and/or an image for indicating horizontal state.

7. A geographic data collecting system, comprising a GPS unit for measuring a coordinate position, a distance measuring unit for projecting a distance measuring light and for measuring a distance to an object to be measured, a camera for taking an image in measuring direction, a display unit for displaying the pickup image, a touch panel provided to correspond to a screen position of said display unit, and an arithmetic unit for calculating a coordinate position of the first measuring point based on a first image and a second image including a first measuring point acquired at a first geographic point and a second geographic point by said camera, based on coordinate positions of the first geographic point and the second geographic point measured by said GPS unit and based on a distance from the first geographic point to the first measuring point measured by said distance measuring unit and a distance from the second geographic point to the first measuring point measured by said distance measuring unit, for calculating a coordinate position of the second measuring point specified by said touch panel on at least one of the first image and the second image based on positional relation on the image, and for calculating a distance between the first measuring point and the second measuring point.

8. A geographic data collecting system according to claim 7, wherein the second measuring point is a point on the image specified on a vertical line of the first measuring point.

9. A geographic data collecting system according to claim 8, wherein an area enclosed by a vertical line and a horizontal line is calculated by specifying at least a third measuring point in a horizontal direction of the first measuring point or the second measuring point.

10. A geographic data collecting system, comprising a GPS unit for measuring a coordinate position, a distance measuring unit for projecting a distance measuring light and for measuring a distance to an object to be measured, a camera for taking an image in measuring direction, a display unit for displaying the pickup image, and an arithmetic unit for calculating a coordinate position of the measuring point based on a first image including a measuring point acquired at a first geographic point by said camera, a second image including the measuring point specified by following from the first image by processing of image matching acquired at the second geographic point, a coordinate position of the first geographic point and the second geographic point measured by said GPS unit, and based on a distance from the first geographic point to the measuring point measured by said distance measuring unit and on a distance from the second geographic point to the measuring point.