Real-time Reconfiguration of Intelligent Manufacturing Systems

eggplantcinnabarΚινητά – Ασύρματες Τεχνολογίες

21 Νοε 2013 (πριν από 3 χρόνια και 8 μήνες)

81 εμφανίσεις

Real
-
time Reconfiguration of
I
ntelligent
M
anufacturing
S
ystems

Manufacturing control systems are required to be adaptive and responsive
.
One approach which is closely
related to the Multi
-
agent systems is H
olonic
M
anufacturing
S
ystem
.

The motivation is the

requirement
for manufacturing systems that can automatically and intelligently adapt to changes in the manufacturing
environment while still achieving overall system goals.


IEC 61499 Function Blocks for Embedded and Distributed Control Systems Design

A s
tandardization project of IEC Technical Committee 65 (TC65) to standardize the use of
function
blocks

in
distributed

industrial
-
process measurement and control systems (IPMCSs).

It is newly
employed in the context of distributed control systems. It is the
extension of IEC 61131 standard for PLC
programming.


Wireless Sensor Networks and its Application in Intelligent Manufacturing Process

The Wireless Sensor Network (WSN) is an emerging technology for a wide range of applications varying
from home automati
on to environment monitoring, from defense to logistics, and many other industrial
applications. WSN is typically formed by many sensor nodes, having sensing, on
-
board processing and
wireless communication capabilities. Wireless sensors have been effective

in monitoring various physical
characteristics of the world, including temperature, pressure, flow rate, humidity, acoustics, light and
pollution
.
Sensors have always been the most important components for monitoring and control of
automated manufacturing

processes as in automated assembly lines and computer integrated
manufacturing systems. Various sensors collect real
-
time data from the manufacturing processes and
operations such as; conditions of physical shop floor, states of machines and material hand
ling devices,
locations and work in process status of parts and so forth. The information provided by sensors is
processed by central Programmable Logic Controllers (PLCs) in order to control the automated devices,
manufacturing or material handling machin
es that belong to a cell or a group. Generally, this type of
conventional manufacturing lines cope with two major challenges: i) the real
-
time data collection in the
manufacturing or assembly plant is done by wired sensors, which are very costly for deploy
ment and
maintenance, and lacking the reliability and flexibility that a manufacturing control system typically
requires. ii) Collected data and information are processed by centralized controllers. The centralized
information processing makes the overall
system unreliable and very prone to failures
.