| 摘要 |
<p>Data is transmitted from a place remote from the vehicle and is collected by a receiver mounted on the vehicle. The system has a circuit for coding data transmitted remotely. The circuit includes a shift register which has 'n' outputs. The system has a programming circuit which transforms each speed limit to an electrical voltage. The circuit includes n+1 bridge voltage dividers (P). Each divider (P) has an intermediate point (m) between a constant voltage source and earth. Each intermediate point (m) is connected to a common connection by a diode (D). The n+1 diodes (D) associated with the intermediate points (m) are connected so that they produce on the common connection the higher voltage appearing at the intermediate points.</p> |
