Monitoring device for traffic information acquisition

A monitoring device for traffic information acquisition belongs to the traffic field. The signal lamp comprises a base, a supporting column, monitoring cameras, a lamp box and traffic lights. The upper end of the base is fixedly connected with the supporting cloumn, and the upper end of the supporting column is fixedly connected with a lamp box; the traffic lights are arranged on two sides of the lamp box; the side face of the supporting column is fixedly connected with two monitoring cameras. The connecting box body is fixedly connected to the outer end of the lamp box; the protection device is fixedly connected to the outer side of the connecting box body. The connecting box body is used for protecting a lampshade of the signal lamp, the refraction devices are arranged on the two sides of the connecting box body respectively, the refraction devices can refract light rays emitted by the signal lamp into the conical barrel, the light rays are changed through the convex lens, and the signal lamp is prevented f