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Roadway systems and methods for conditionally transmitting a radio signal to vehicles, depending on whether a certain person is in the area
Roadway systems and methods for conditionally transmitting a radio signal to vehicles, depending on whether a certain person is in the area
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机译:用于根据车辆是否在该区域内有条件地向车辆发射无线电信号的道路系统和方法
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摘要
Disclosed are alert systems and methods for a roadway. According to one exemplary method, there is a step of receiving an identification signal from a device carried by a human having a medical condition. Subsequently, circuitry acts to conditionally cause a changeable road sign to display the medical condition, and conditionally transmit a radio warning signal to a vehicle, the radio warning signal indicating the medical condition.
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