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Help and/or risk signaling means for the traffic of vehicles and pedestrians using a short range infrared or electromagnetic signaling system

  • US 6,861,959 B1
  • Filed: 10/27/1999
  • Issued: 03/01/2005
  • Est. Priority Date: 10/27/1999
  • Status: Expired due to Fees
First Claim
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1. A signaling system for communicating traffic information comprising:

  • (a) a plurality of radio beacons selected from a group consisting of fixed (TX-F) and portable (TX-M) radio beacons;

    (b) a plurality of vehicle-installed mobile transceiver (TX/RX-M) for receipt of traffic information concerning hazardous areas or conditions;

    (c) a plurality of user-carried transceiver (TX/RX-P) for receipt of traffic information concerning hazardous areas or conditions;

    (d) an operations center for control of said vehicle-installed mobile transceivers and said user-carried transceivers comprising a services network comprising fixed and portable elements;

    wherein said signaling system comprises AVI (automatic vehicle identification) technology for identifying and recording time of data received or transmitted by the transceivers;

    wherein said AVI technology comprises transmitter elements having (a) operating frequencies authorized for AVI applications selected from a group consisting of 900-928 MHz;

    2.45 GHz and 5.8 GHz;

    (b) a voltage supply selected from a group consisting of batteries having a life of 10 years and solar cells;

    (c) a range selected from a group consisting of up to 10 meters for installation at fixed locations and up to 100 meters for portable installation;

    (d) electronic features selected from a group consisting of adapted AVI technology, surface technology (SAW), EPROM, EEPROM, ROM, and RAM memories having a storage capacity of at least 1024 bits;

    (e) a permissible temperature range comprising a standard operating temperature of from −

    40 degree C. to 85 degree C. and storage temperature from −

    55 degree C. to −

    125 degree C.; and

    (f) a resistance to weather conditions.

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