Technique for providing conveyance locating information

• US 6,650,293 B1
• Filed: 10/22/2001
• Issued: 11/18/2003
• Est. Priority Date: 10/22/2001
• Status: Expired due to Fees

• Current Assignee: AT&T Corporation (AT&T, Inc.)
• Original Assignee: AT&T Corporation (AT&T, Inc.)
• Inventors: Huffman, John Sinclair, Eslambolchi, Hossein, Stewart, Harold Jeffrey, Giddens, Charles C.
• Primary Examiner(s): Issing, Gregory C.
• Application Number:
  US10/011,325
• Time in Patent Office: 757 Days
• Field of Search: 342/357.13, 342/357.17, 342/459, 342/357.14, 701/208, 701/213, 701/216
• US Class Current: 342/459
• CPC Class Codes: G01S 19/14 specially adapted for specific applications
• CPC Class Codes: H02G 9/00 Installations of electric cables or lines in or on the ground or water
• CPC Class Codes: H02G 9/02 laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile

Abstract

To locate a buried conveyance (10), electromagnetic signaling information is collected at spaced intervals along the conveyance with the aid of a locating device (14). A processor (21) receives such information from the locating device (14) and then geographically orders the information in accordance with the geographic coordinates of the location at which it was obtained. Once geographically ordered, the information is then provided on a display (22) to provide a visual representation of the information as a function of the conveyance length.

Claims

1. A method for providing locating information for a buried conveyance, comprising the steps of:

receiving locating information associated with each of a plurality of discrete portions of the conveyance, said locating information for each discrete portion including geographic coordinate data indicative of where such locating information was obtained;

establishing a physical proximity for each discrete portion of the conveyance relative to the other discrete portions based on the geographic coordinate data;

altering an arrangement of the locating information for the discrete portions of the conveyance to be in sequence corresponding to the proximity of the discrete portions to each other; and

displaying the combined locating information to provide an overall representation of the conveyance.

2. The method according to claim 1 wherein the arranged locating information is stored for subsequent retrieval.

3. The method according to claim 1 wherein the location data includes conveyance depth information.

4. The method according to claim 1 wherein the location data includes locating signal strength information.

5. The method according to claim 1 wherein the location data includes conveyance current information.

6. The method of claim 1 wherein the geographic coordinate data is obtained from a Global Positioning Satellite measurement.

7. The method of claim 1 wherein the arranged locating data is smoothed before display.

8. A method for providing locating information for a buried conveyance, comprising the steps of:

receiving locating information associated with each of a plurality of discrete portions of the conveyance, said locating information for each discrete portion including Global Positioning Satellite data indicative of the geographic coordinates where such locating information was obtained, the locating information including at least information indicative of at least one of;

conveyance depth, locating signal strength; and

conveyance current;

establishing a physical proximity for each discrete portion of the conveyance relative to the other discrete portions based on the geographic coordinate data;

altering an arrangement of the locating information for the discrete portions of the conveyance to be in sequence corresponding to the proximity of the discrete portions to each other; and

displaying the combined locating information to provide an overall representation of the conveyance.

9. The method according claim 8 wherein the arranged locating information is stored for subsequent retrieval.

10. The method of claim 8 wherein the arranged location data is smoothed before display.