Patent ID: 6861959
Filing Date: 2005-03-01
Classification: G08B,G08G

Abstract:
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.