IEICE TRANSACTIONS on Fundamentals
Safety Verification of Material Handling Systems Driven by Programmable Logic Controller--Consideration of Physical Behavior of Plants--
Summary :
The PLC (Programmable Logic Controller) has been widely used in the industrial world as a controller for manufacturing systems, as a process controller and so on. The conventional PLC has been designed and verified as a pure Discrete Event System (DES) by using an abstract model of a controlled plant. In verifying the PLC, however, it is also important to take into account the physical behavior (e.g. dynamics, shape of objects) of the controlled plant in order to guarantee such important factors as safety. This paper presents a new verification technique for the PLC-based control system, which takes into account these physical behaviors, based on a Hybrid Dynamical System (HDS) framework. The other key idea described in the paper is the introduction of the concept of signed distance which not only measures the distance between two objects but also checks whether two objects interfere with each other. The developed idea is applied to illustrative material handling problems, and its usefulness is demonstrated.
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- IEICE TRANSACTIONS on Fundamentals Vol.E87-A No.4 pp.843-849
- Publication Date
- 2004/04/01
- Publicized
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- Special Section PAPER (Special Section on Selected Papers from the 16th Workshop on Circuits and Systems in Karuizawa)
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Eiji KONAKA, Tatsuya SUZUKI, Shigeru OKUMA, "Safety Verification of Material Handling Systems Driven by Programmable Logic Controller--Consideration of Physical Behavior of Plants--" in IEICE TRANSACTIONS on Fundamentals,
vol. E87-A, no. 4, pp. 843-849, April 2004, doi: .
Abstract: The PLC (Programmable Logic Controller) has been widely used in the industrial world as a controller for manufacturing systems, as a process controller and so on. The conventional PLC has been designed and verified as a pure Discrete Event System (DES) by using an abstract model of a controlled plant. In verifying the PLC, however, it is also important to take into account the physical behavior (e.g. dynamics, shape of objects) of the controlled plant in order to guarantee such important factors as safety. This paper presents a new verification technique for the PLC-based control system, which takes into account these physical behaviors, based on a Hybrid Dynamical System (HDS) framework. The other key idea described in the paper is the introduction of the concept of signed distance which not only measures the distance between two objects but also checks whether two objects interfere with each other. The developed idea is applied to illustrative material handling problems, and its usefulness is demonstrated.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e87-a_4_843/_p
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@ARTICLE{e87-a_4_843,
author={Eiji KONAKA, Tatsuya SUZUKI, Shigeru OKUMA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Safety Verification of Material Handling Systems Driven by Programmable Logic Controller--Consideration of Physical Behavior of Plants--},
year={2004},
volume={E87-A},
number={4},
pages={843-849},
abstract={The PLC (Programmable Logic Controller) has been widely used in the industrial world as a controller for manufacturing systems, as a process controller and so on. The conventional PLC has been designed and verified as a pure Discrete Event System (DES) by using an abstract model of a controlled plant. In verifying the PLC, however, it is also important to take into account the physical behavior (e.g. dynamics, shape of objects) of the controlled plant in order to guarantee such important factors as safety. This paper presents a new verification technique for the PLC-based control system, which takes into account these physical behaviors, based on a Hybrid Dynamical System (HDS) framework. The other key idea described in the paper is the introduction of the concept of signed distance which not only measures the distance between two objects but also checks whether two objects interfere with each other. The developed idea is applied to illustrative material handling problems, and its usefulness is demonstrated.},
keywords={},
doi={},
ISSN={},
month={April},}
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TY - JOUR
TI - Safety Verification of Material Handling Systems Driven by Programmable Logic Controller--Consideration of Physical Behavior of Plants--
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 843
EP - 849
AU - Eiji KONAKA
AU - Tatsuya SUZUKI
AU - Shigeru OKUMA
PY - 2004
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E87-A
IS - 4
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - April 2004
AB - The PLC (Programmable Logic Controller) has been widely used in the industrial world as a controller for manufacturing systems, as a process controller and so on. The conventional PLC has been designed and verified as a pure Discrete Event System (DES) by using an abstract model of a controlled plant. In verifying the PLC, however, it is also important to take into account the physical behavior (e.g. dynamics, shape of objects) of the controlled plant in order to guarantee such important factors as safety. This paper presents a new verification technique for the PLC-based control system, which takes into account these physical behaviors, based on a Hybrid Dynamical System (HDS) framework. The other key idea described in the paper is the introduction of the concept of signed distance which not only measures the distance between two objects but also checks whether two objects interfere with each other. The developed idea is applied to illustrative material handling problems, and its usefulness is demonstrated.
ER -
English
