Abstract: An electro-hydraulic proportional flow valve speed regulating control system includes a PWM regulating device, an electro-hydraulic proportional flow valve, a hydraulic executing element, a speed measuring module, an electro-hydraulic proportional flow valve characteristic measuring module, and a feedforward control module. The speed measuring module measures a speed of the hydraulic executing element and sends the measured result to the electro-hydraulic proportional flow valve characteristic measuring module which measures a minimum actuating current and a maximum actuating current of the electro-hydraulic proportional flow valve and a maximum speed of the hydraulic executing element and inputs these measured results to the feedforward control module.

Abstract: An intelligent boom control device includes: a control unit and an angle measurement unit, the control unit calculating the boom position information based on measured value of angles, whereby adjusting the control of various actuators; the device further including: a remote controller which transmits control commands and can provide movement control commands including X axis component, Y axis component and Z axis component used in a rectangular coordinate system; a rectangular coordinate system being defined in a space; when the remote controller transmits a movement control command, the control unit determining the movement direction of the boom end in a plane according to the X axis component and Y axis component of the received movement control command, and decomposing the movement into movement of each boom section and the rotary platform so that the boom end moves to the direction indicated by the movement control command.

Abstract: The present invention discloses an intelligent boom control device including: a control unit and an angle measurement unit, the control unit calculating the boom position information based on measured value of angles, whereby adjusting the control of various actuators; the device further including: a remote controller which transmits control commands in the form of wireless remote control and can provide movement control commands including X axis component, Y axis component and Z axis component used in a rectangular coordinate system; a rectangular coordinate system being defined in a space, X axis, Y axis and Z axis of this rectangular coordinate system corresponding to each of the coordinate axis components in the movement control command of the remote controller; when the remote controller transmits a movement control command, the control unit determining the movement direction of the boom end in a plane according to the X axis component and Y axis component of the received movement control command, and de