| US 7,546,765 B1 | ||
| Scanning device and method for analyzing a road surface | ||
| Richard D. Janke, Holly, Mich. (US); Mine Tasci, Walled Lake, Mich. (US); John D. Davis, Milford, Mich. (US); James C. Tebbe, Rochester Hills, Mich. (US); Herbert R. Butterfield, Fenton, Mich. (US); Timothy D. Roberts, Fenton, Mich. (US); David A. Ruiz, Plymouth, Mich. (US); Kyle M. Smith, Royal Oak, Mich. (US); and Donald E. Martini, Howell, Mich. (US) | ||
| Assigned to GM Global Technology Operations, Inc., Detroit, Mich. (US) | ||
| Filed on Mar. 20, 2008, as Appl. No. 12/51,913. | ||
| Int. Cl. G01M 17/02 (2006.01) | ||
| U.S. Cl. 73—146 [340/436; 180/169] | 19 Claims |
| 1. A road surface scanning device, comprising:
a frame having a plurality of structural members including a longitudinal support that extends in a longitudinal direction
of the scanning device, and a lateral support that extends in a lateral direction of the scanning device and is securely connected
to the longitudinal support;
a carriage being movably attached to the frame so that it can move in the longitudinal direction of the scanning device;
a scanner for acquiring road surface data and having a laser head that emits an incident laser line towards the road surface,
and a camera that receives a reflected laser line from the road surface;
a first actuator for moving the scanner along the carriage in the lateral direction of the scanning device; and
a second actuator for moving the carriage along the frame in the longitudinal direction of the scanning device, wherein the
first actuator moves the scanner along the carriage during a lateral scan, and the second actuator moves the carriage along
the frame in between lateral scans.
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