Abstract: The invention relates to the field of engineering machinery, and discloses a pumping control method and apparatus, a material distribution method and apparatus as well as a distribution device. The pumping control method includes: calculating an initialized pumping speed; controlling a distribution device to pump at the initialized pumping speed; and dynamically adjusting the pumping speed of the distribution device in real time according to a completed real-time distribution volume and real-time distribution time during the pumping of the distribution device until the real-time distribution volume is a desired distribution volume. Therefore, the accuracy of a final distribution volume is improved.

Abstract: The present invention relates to the field of engineering machinery, and discloses a method and an apparatus for judging the safety of an operation which may be performed by a boom and an engineering machinery, the method including: acquiring parameters for each arm in the boom, wherein the parameters comprise an inclination angle, an arm length, and mass; determining, based on the acquired parameters, a position of the full center of mass of the boom and a position of the combined center of mass from an operating arm to a terminal arm; determining a safety judging basis direction vector based on the position of the full center of mass and the position of the combined center of mass; and judging the safety of an operation which may be performed on the operating arm based on the safety judging basis direction vector.