Intelligent guardrail for highway

An intelligent guardrail for a highway relates to the technical field of highway facilities and comprises a guardrail body, a virtual guardrail construction device, a controller and a storage battery, the guardrail body comprises a plurality of vertical rods arranged at intervals and cross beams fixedly connected to the inner surfaces of the vertical rods, and the cross beams extend along the trend of the highway. The virtual guardrail construction device is arranged on the outer surface of the side, facing the highway, of the cross beam, sound sensors are arranged at the top ends of the multiple vertical rods at intervals, the sound sensors are in signal connection with a controller through wires, and the controller is configured to control the virtual guardrail construction device. The controller is electrically connected with the storage battery through a wire. By arranging the virtual guardrail, substantive accidents caused by the fact that a vehicle collides with the guardrail when the vehicle runs on th