Tracking lane marker position through use of information-transmiting device
First Claim
1. A method of'"'"'tracking vehicle position with respect to road marking lines through use of information-transmitting devices, comprising:
- providing at least one information-transmitting wireless device such as, but not limited to RFID tags, installed on a road surface, wherein each of the devices is adapted for transmitting information to a reader, which has been installed on a vehicle such that once the information-transmitting device falls in the predetermined proximity to the vehicle it becomes to be activated and starts to transmit RF signal to the reader.
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Abstract
Detecting position of the vehicle with respect to the lane marker lines through use of information-transmitting devices has been proposed. At least one row of information-transmitting wireless devices is provided for a lane marker line, wherein each of the devices is adapted for transmitting information to a reader usable for detecting the position of the vehicle as it comes in close enough proximity to the wireless device. Each of the devices transmits a digital signal to the reader installed on the body of the vehicle, which contain information of the line styles (dashed, solid etc.), line colors (white, yellow or blue) and locations with respect to the road. The information-transmitting devices may be placed just on the road surface, at some depth of the road surface, on light reflectors, guardrails, traffic cones, or any other devices installed on a road for traffic control or for any other purposes. The information-transmitting devices may be positioned just on or on a side of the marker lines or on the center or in proximity of the center of the traffic lane. The method proposed allows detection of the lane marker line no matter how difficult lightening conditions are and unambiguously determine the nature of the line detected.
30 Citations
17 Claims
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1. A method of'"'"'tracking vehicle position with respect to road marking lines through use of information-transmitting devices, comprising:
providing at least one information-transmitting wireless device such as, but not limited to RFID tags, installed on a road surface, wherein each of the devices is adapted for transmitting information to a reader, which has been installed on a vehicle such that once the information-transmitting device falls in the predetermined proximity to the vehicle it becomes to be activated and starts to transmit RF signal to the reader. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17)
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13. A lane departure warning system adapted for use with a vehicle, comprising:
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a. either one or few readers installed on a vehicle b. a processor receiving a digital signal from the reader(s) which determines if a situation to be reported to the driver and, if so, the way it has to be reported. c. a user interface that can include a speaker, text display, warning light or visual display or any of their combinations.
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Specification