Intelligent agricultural machine

An intelligent agricultural machine comprises a car body, a distance measurement instrument, an earth magnetism sensor, a controller and a reference object and is characterized in that the distance measurement instrument, the earth magnetism sensor and the controller are installed on the car body; the distance measurement instrument is used to measure a distance between the car body and the reference object; the earth magnetism sensor measures an included angle between an advancing direction of the car body and an earth magnetic field direction; the controller controls work of the distance measurement instrument and the earth magnetism sensor; the controller calculates an orientation of the car body according to measurement data fed back by the distance measurement instrument and the earth magnetism sensor; and the controller controls actions of the car body according to the car body orientation and preset values. 智能农用机械，包括车体、测距仪、地磁感应器、控制器和参照物，其特征在于测距仪、地磁感应器、控制器装于车体，测距仪测量车体与参照物之间的距离，地磁感应器测出车体行进方向与地磁场方向的夹角，控制器