System to influence vehicle travel direction - uses aerials at cross roads to provide data processing information

摘要

The system is devised to influence the linear direction of travel of vehicles at cross roads by transferring information regarding movement to a central data processing base. The vehicle has two aerials (A1, A2) with linear cables at the crossing so that the aerials pass information to the trigger circuits (B1, B2). - The system uses the EXCLUSIVE-OP gates (G1, G2, G3) to monitor the out of phase signal and to provide crossing identification (k) and direction of travel (F1, F2). The signals are summed at the amplifier (S), passed through a band pass filter (BP) to give data processing information (J).