Patent ID: 7844379

Claim:
An intelligent boom control device, the boom being hinged to a rotary platform rotatable around an upright axis fixed to a machine frame, and the boom having at least three boom sections hinged with each other by horizontal joint shafts, each boom section can pivot restrictedly about the joint shafts parallel to each other with respect to the rotary platform or other boom sections under the action of actuators; said intelligent boom control device comprising: a control unit for controlling the respective actuators according to control commands so that the boom end moves in the defined coordinate system in accordance with the control commands; an angle measurement unit including angle sensors for measuring the angles between the boom sections as well as the rotating angle of the rotary platform, said unit being used to provide measured value of angles to the control unit which calculates the boom position information based on the measured value of angles, whereby adjusting the control of the respective actuators; and a remote controller for transmitting the control commands in the form of wireless remote control; wherein the remote controller can provide movement control commands used in a rectangular coordinate system, the movement command including a X axis component, a Y axis component and a Z axis component; a rectangular coordinate system is defined in a space, X axis, Y axis and Z axis of this rectangular coordinate system correspond to the X axis component, the Y axis component and the Z axis component of the movement control commands of the remote controller, respectively; wherein a plane defined by the plane rectangular coordinate system consisted of X axis and Y axis is parallel to the horizontal plane; the Z axis always regards the up direction vertical to the horizontal plane as the positive direction; when the remote controller transmits a movement control command, the control unit determines the movement direction of the boom end in the plane rectangular coordinate system based on the X axis component and Y axis component of the received movement control command, and decomposes the movement into movement of each boom section and the rotary platform so that the boom end moves in the direction indicated by the movement control command in the rectangular coordinate system.