| 摘要 |
A system to provide a warning to a person in a vehicle when the vehicle i s proximal or in a danger area to an emergency services vehicle or a hazard area, the system comprising an emitter on the emergency services vehicle or in or adjacent the hazard area, a radio associated with the vehicle, the rad io having a receiver to receive the signal from the emitter, a speaker, a de coder means to send a warning signal to the speaker when the receiver receiv es a signal from the emitter. |
