Intelligent tunnel early warning system

The utility model discloses an intelligent tunnel early warning system. The device comprises an alarm module, signal receiving module, master control module, a signal output module and an execution module, the main control module carries out corresponding processing according to the received alarm module information; the execution module is driven to execute a corresponding instruction; instructions of the execution module include red light flickering which represents that accidents happen in a tunnel or vehicles fail and are forbidden to pass. Yellow light flickering represents that an accident occurs in the tunnel or a vehicle breaks down to remind the vehicle of slowing down. Green light represents that an accident occurs in the tunnel or a fault of the vehicle is removed, but the vehicle is still reminded of slowing down; red and blue flickering reminds accidents of careless driving and normal driving through white light illumination, so that a driver can know the condition in thetunnel in time, secondary