| US 7,541,943 B2 | ||
| Traffic sensor incorporating a video camera and method of operating same | ||
| Dan Manor, Toronto (Canada) | ||
| Assigned to EIS Electronic Integrated Systems Inc., Toronto (Canada) | ||
| Filed on May 05, 2006, as Appl. No. 11/418,061. | ||
| Prior Publication US 2007/0257819 A1, Nov. 08, 2007 | ||
| Int. Cl. G08G 1/017 (2006.01) | ||
| U.S. Cl. 340—937 [340/933; 340/522] | 23 Claims |
| 1. A method of operating a traffic sensor to collect vehicular traffic data for a road, the traffic sensor having a radar
module and an image module both contained in a traffic sensor enclosure, the method comprising:
a) operating the radar module to generate radar-based vehicle data regarding a plurality of vehicles passing a sensor field
of view based on detection and measurement of the traffic on the road;
b) operating the image module to generate image data representing a plurality of images of the road and the traffic on the
road;
c) determining if a triggering event has occurred;
d) transmitting the radar-based vehicle data to a remote location spaced from the traffic sensor and, if the triggering event
is determined to have occurred, transmitting the image data to the remote location; and
e) if the triggering event is determined to have occurred, comparing the radar-based vehicle data with the image data at the
remote location;
wherein the image module is a video camera and the image data is not transmitted to the remote location and is not compared
with the radar-based vehicle data unless the triggering event is determined to have occurred.
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