Innovative Production Machines and Systems Conference - Production Automation and Control

Greetings

sceaaf — Fri, 06 Jul 2007 10:04:30 +0000

Dear authors and participants,

It is great pleasure to welcome you all to the Production Automation & Control session, IPROMS
2007. I'm Ashraf Fahmy, co-chair for this session.

First of all, my sincere thanks to the authors, thank you very much for your contribution to this
session and to the conference. I am kindly expecting your contributions for the discussions as well.

Participants, please register yourself to view the full papers. Feel free to post questions and
comments; I am kindly expecting your active participation to make this conference interesting,
lively and helpful. I hope that you will enjoy your stay in this session and would find many

Mechanical behaviour of 2124 Al/SiCp composites

yet unknown — Fri, 22 Jun 2007 13:17:48 +0000

Aluminum 2124 alloy with different volume fraction of SiCp (0%, 10%, 20%) composites were prepared by Powder metallurgy technique.The hot extrusion test was conducted to study extrusion characteristics of Al 2124/SiCp composites. The composites with different volume fraction of SiCp (0%, 10%, 20%) were extruded and measured in different conditions. Empirical models were developed for extrusion pressure. Constitutive equations have been obtained based on the multiple linear regressions from experimental results. The constitutive equations can be used for the prediction of extrusion pressure f

Open Architecture Controller Interface Implementation for Machine Tools

zbigniewpasek — Fri, 22 Jun 2007 13:17:48 +0000

Open architecture control (OAC) is a well-known, factory automation technology. There is, however, a big gap between the state-of-the art technology of OAC and industrial implementation. To fill the gap between the end users and vendors of OAC, two applications of OAC are explored. The first application is a user-customizable, remote monitoring system that can gather machine tool or machining process information generated by networked CNC (Computer Numerical Control) systems. For common open connectivity, OPC (OLE for Process Control) standard interface was used. The second application is hardware-in-the-loop simulation for machine tool development using a commercial OAC.

Algorithms for the optimized generation of trajectories through splines, and integration into open architecture control system

Meo — Fri, 22 Jun 2007 13:17:46 +0000

The traditional way for machine tools to execute part-programs consists in moving the tool tip in linear interpolation from one programmed point to the next one. But in some applications (as instance the milling of moulds and dies) a certain degree of approximation in the path is always present. The market requests to integrate into Numerical Controls innovative algorithms that allow to approximate in a customizable way the programmed path, in order to select between a path that goes through all programmed points and one that smoothes all discontinuities in the programmed path with a path error that can be easily selected by the operator.

A semantic data model for electrical discharge machining

tsseo — Fri, 22 Jun 2007 13:17:46 +0000

Machining condition data are used as an input of a CNC machine tool. In general for a given set of machining requirements, human experts decide machining conditions based on their knowledge and experience. To construct machining databases, which are reusable and sharable their structures and meanings, semantic data model is required. In this study a semantic data model required for construction of electrical discharge machining (EDM) databases is developed. It combines conventional data models with ISO/IEC 11179 standard, metadata registry (MDR). Names of object classes and properties constituting data element names are identified using conventional data model while data elements are named and specified based on ISO/IEC 11179 in order to obtain semantic interoperability of data.

Task scheduling with obstacle avoidance for industrial manipulators operating in 3D environments

Zacharia — Fri, 22 Jun 2007 13:17:46 +0000

In this paper a new method is introduced to solve the scheduling problem for a point-to-point manipulator motion in three-dimensional (3D) environments. The robotâ€™s 3D environment is cluttered with obstacles of arbitrary size, shape and location, while a set of task-points are located in the robotâ€™s 3D free-space. The objective is to determine the optimum collision-free robotâ€™s tip tour through all task-points passing from each one exactly once and return to the initial task point. This scheduling problem combines two computationally hard problems: the task scheduling problem and the collision-free motion planning between the task points.

A fuzzy system for AGV navigation and obstacle avoidance

Dentsoras — Fri, 22 Jun 2007 13:17:46 +0000

A study is presented of the motion of an autonomous ground vehicle (AGV) in the space of a moving obstacle. For the obstacle, two types of motion are considered: a. along a straight line and b. random movement. Two cases are also examined for the object dimensions: a. both the AGV and the obstacle are considered as dimensionless and b. the dimensions of both objects are taken into account. A fuzzy obstacle avoidance system (FOAS) has been build that receives as input the current obstacle position. Depending on the position, the proper (minimum) number of fuzzy rules is activated. The output is then defuzzified in order to provide a precise value for the motion direction angle of the AGV.

DC motor control through remote PC using embedded linux

rjsiva — Fri, 22 Jun 2007 13:17:45 +0000

Recently, the processor world has been growing with high speed advanced architecture compatible with any kind of source's. Equivalently, the Linux dominating the embedded market with the many
features like realtime control, open source application,easy upgradability, compatibility with many processor etc. Which all add up the motor controllers with various functions not only real time control , communication capabilities but also wireless control from remote host computer and other motor controller for synchronization.
This paper presents a brushless motor controller through remote (literally meaning wireless LAN control) by using the RTLinux .