Dynamic vehicle speed control system for relieving micro-congestion of highway toll station

A dynamic vehicle speed control system for relieving micro-congestion of a highway toll station comprises a control center, a signal base station, a coil detector and portal frame type variable information issuing equipment, the portal frame type variable information issuing equipment comprises a variable information board and a sign board, the sign board is arranged below a portal frame, and the signal base station is connected with the portal frame. A lane indication assembly and a lane dynamic speed assembly are arranged in the coil detector, the coil detector is composed of an upstream ground induction coil and a downstream ground induction coil, the signal base station receives oscillation frequency transmitted by the coil detector, and the oscillation frequency is converted into radio waves through the geomagnetic conversion device and transmitted to the control center. The control center feeds back information to the variable information issuing equipment, the variable information issuing equipment dyn