FIELD: pickups for detecting vehicle. SUBSTANCE: pickup has signal generator coupled with inductive stub and is connected to first inputs of comparators. Output of first comparator is output of pickup, and outputs of second and third comparators are connected to first and second inputs of OR gate and to control inputs of reversible counter whose outputs are connected to address inputs of multiplexer whose output is connected to signal generator feedback input. Second output of signal generator is connected also to input of resistive voltage divider whose outputs are connected to data inputs of multiplexer. Output of OR gate, pulse generator and first comparator are connected, respectively, to first second and third inputs of AND gate. Output of AND gate is connected to complementing input of reversible counter. EFFECT: increased accuracy of vehicle detection owing to protection of inductive wire pickups parameters from destabilizing factors. 1 dwg
