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Procedure and device for the wireless transmission of traffic information, including between stationary or quasi-national units and motor vehicles
Procedure and device for the wireless transmission of traffic information, including between stationary or quasi-national units and motor vehicles
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机译:无线传输交通信息的程序和设备,包括固定或准国家单位与机动车之间的信息
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摘要
The traffic information system sends low power RDS radio or optical signals from transmitters in traffic signs (2,3) to moving vehicles (1) which refresh or overwrite previously stored and displayed information such as speed limits.
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