Control of a hydraulic crane is considered Due to the oscillatory character of the system smooth the operation of the crane is a demanding task In order to improve the handling properties feedback control of the crane is studied Based on linearized models feedback regulators of both LQG and PID type are designed The feedback is based on position pressure and acceleration measurements Since the ...

Owing to the high power consumption and limited control precision of traditional hydraulic drive winch systems, this study proposes electric-type energy recovery systems. The accumulator used in type has low density, which makes it difficult store a large amount energy. Meanwhile, electric motor/generator cannot solve secondary slip because oil leakage, leads controllability high-power under ne...

This paper demonstrates the method of controlling the crane using Dual Tone Multi Frequency (DTMF) technology. The crane is controlled by a mobile phone that makes a call to another mobile phone attached to the crane's control panel. During the call, if any button is pressed, tone corresponding to that button is heard at the other end of the call. This tone is received

Abstract An electronic system based on an open source programmable board was designed and tested, for remote control monitoring of a fluid power machine. To satisfy the requirements two-way communication between machine user interface, connection must be established via Internet. The Arduino Uno Wi-Fi Rev 2 is to connect wirelessly local network. transmit data graphical device that external net...

As the control system of the ship's crane is nonlinear , time-varying and large inertia, the traditional way to control is difficult to achieve control requirements. The text have the deck crane’ electro-hydraulic proportional valve as the research object, use the way of optimizing input’s fuzzy domain which called variable domain fuzzy PID, to solve the weakness of traditional control and brin...

This paper is introduced to be the obstacle recognition, path planning and oscillating control for an automobile crane system on-line. We studied the autonomous mobile overhead traveling crane so for. In particular, the research of obstacle recognition, path plan and oscillating control is carried out. For on-line obstacle recognition, the obstacle recognition system using the ultrasonic sensor...

Mobile cranes have been used extensively as essential equipment at construction sites. The productivity improvement of the mobile crane affects overall project. Hence, various studies conducted regarding operation planning. However, on solving RCP (the repositioning problem) are insufficient. This article presents a reposition route planning optimization method (RPOS) that minimizes total opera...

A crane is the type of machine mainly used for handling heavy loads in different industry branches: metallurgy, paper and cement industry. By the construction, cranes are divided into the overhead and gantry cranes. An overhead crane, also known as a bridge crane, is a type of crane where the hook and line mechanism runs along a horizontal beam that itself travels on the two widely separated ra...