Networked Control Systems(NCS) contain the structure which controllers, actuators and sensors are connected to communication network. And they have been adopted in large and complicated plant area due to the advantages of mitigating computational bottleneck and maintenance. Although this structure provides many benefits, it brings in problems of unpredictable communication delay, data loss and corruption. This phenomena have to be considered in designing NCSs since it affects on overall control system stability. This paper introduces network traffic test method for ethernet based NCSs to find out maximum network usage which guarantee stable control operation. Test results shows this methods can be adopted in various types of NCSs and contributes economical system design and effective system operation.
[1]
Y. Tipsuwan,et al.
Network-based control systems: a tutorial
,
2001,
IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243).
[2]
Suk Lee,et al.
Performance evaluation of switched Ethernet for real-time industrial communications
,
2002,
Comput. Stand. Interfaces.
[3]
James Moyne,et al.
Performance evaluation of control networks: Ethernet, ControlNet, and DeviceNet
,
2001
.
[4]
신명철,et al.
태양광어레이 방위각 및 경사각 변화에 따른 일사량 영향분석에 관한 연구
,
2013
.
[5]
Feng-Li Lian,et al.
Network design consideration for distributed control systems
,
2002,
IEEE Trans. Control. Syst. Technol..
[6]
오성권,et al.
패턴 인식을 위한 Interval Type-2 퍼지 집합 기반의 최적 다중출력 퍼지 뉴럴 네트워크
,
2013
.