METHOD AND SYSTEM FOR IMPROVED TRAFFIC SIGNAGE
First Claim
Patent Images
1. A traffic sign, comprising:
- a reflector,wherein the reflector is configured to reflect non-visible light projected by a vehicle-mounted non-visible light source,wherein the reflector includes a one or more polarized regions, the one or more polarized regions are polarized in different manners,wherein the non-visible light reflected by the reflector is detected by a vehicle-mounted sensor.
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Abstract
An improved traffic sign is discussed. The traffic sign includes road reflectors, which reflect available light towards a driver indicating road lane divisions. A sensor module coupled with a vehicle can convert the reflected light to a binary word. The sensor module can further convert the binary word into traffic information, wherein a vehicle-mounted display displays information selected from received traffic information based on priority, time of receipt, and relevance. The improved traffic sign can also include an RFID tag configured to transmit traffic information to a vehicle-mounted receiver.
12 Citations
44 Claims
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1. A traffic sign, comprising:
a reflector, wherein the reflector is configured to reflect non-visible light projected by a vehicle-mounted non-visible light source, wherein the reflector includes a one or more polarized regions, the one or more polarized regions are polarized in different manners, wherein the non-visible light reflected by the reflector is detected by a vehicle-mounted sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method, comprising:
reflecting, by a reflector coupled to a traffic sign, non-visible light that is projected by a non-visible light source mounted on a vehicle, wherein the reflector includes a one or more polarized regions, the one or more polarized regions are polarized in different manners, wherein the non-visible light reflected by the reflector is detected by a vehicle-mounted sensor and converted into traffic information. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A system, comprising:
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a non-visible light source coupled to a vehicle, projects non-visible light, wherein the non-visible light is reflected by a reflector; a sensor module coupled to the vehicle, includes a light detector, logic circuits and a look-up table, wherein the light detector detects reflection of the non-visible light by the reflector, wherein the logic circuits convert the reflection of the non-visible light into a binary word, wherein the sensor module uses the look-up table to convert the binary word into traffic information. - View Dependent Claims (17, 18, 19)
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20. A method, comprising:
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projecting, by a vehicle-mounted non-visible light source, a non-visible light towards a reflector; detecting, by a non-visible light detector, the non-visible light reflected by the reflector, wherein the non-visible light detector is coupled with a vehicle-mounted sensor; converting, by the vehicle-mounted sensor, reflection of the non-visible light into a binary word; and converting, by the vehicle-mounted sensor, the binary word into traffic information. - View Dependent Claims (21, 22, 23, 24, 25, 27, 29)
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26. A method, comprising:
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projecting, by a vehicle-mounted non-visible light source, a non-visible light; reflecting, by a reflector coupled to a traffic sign, the non-visible light, wherein the reflector includes one or more polarized regions, the one or more polarized regions are polarized in different manners; detecting, by a non-visible light detector, the non-visible light reflected by the reflector, wherein the non-visible light detector is coupled with a vehicle-mounted sensor; converting, by the vehicle-mounted sensor, reflection of the non-visible light into a binary word; and converting, by the vehicle-mounted sensor, the binary word into traffic information. - View Dependent Claims (28, 30)
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31. An apparatus, comprising:
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a sensor module for detecting non-visible light reflected from a polarized road reflector, wherein the polarization of the road reflector conveys traffic information, wherein the sensor module converts reflection of the non-visible light into a binary word, wherein the binary word is converted to the traffic information by the sensor module via a look-up table, wherein the traffic information is associated with a priority; and a display for communicating with the sensor module, wherein the display displays information selected from received traffic information based on the priority. - View Dependent Claims (32, 33, 34, 35, 36)
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37. An apparatus, comprising:
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a sensor module for detecting non-visible light reflected from a polarized road reflector, wherein the sensor module is coupled to a vehicle, wherein the polarization of the road reflector conveys traffic information, wherein the sensor module converts reflection of the non-visible light into a binary word, wherein the binary word is converted to the traffic information by the sensor module via a look-up table, wherein the traffic information is associated with a priority; an RFID transceiver module coupled to the vehicle, configured to; transmit a request signal to a proximate RFID tag, the request including a vehicle identifier or vehicle class identifier of the vehicle; receive a data structure including the traffic information, the priority information, and complementary information from the RFID tag; and a display mounted on the vehicle for communicating with the sensor module and the RFID transceiver module, wherein the display displays information selected from received traffic information based on the priority. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44)
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Specification