摘要 |
The invention relates to a radio data transmission system for vehicles, whereby a transmitter (3) is built into an on-road vehicle (1) and transmits encoded data which are received by base stations or antennae (4) distributed along the length of the roads (2). In this way, the situation of the vehicle (1) and the characteristics thereof can be assessed by the traffic police in order to determine the appropriate mode of action to be taken according to the data received. The data transmitted via the transmitter (3) of the vehicle (1) to the base stations (4) are subsequently sent from said base stations to the receiver (10) of a central exchange which can be located in a vehicle belonging to traffic police (5) or at a police station, etc.. In this way, in all cases, the system establishes an effective intercommunication means between vehicles on the road (1) and the base stations (4) receiving the signals emitted by the vehicles (1), said signals being subsequently received at a control centre from the base stations. |