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Virtual Controllers

Lovric, Dalibor and Olsson, Christian (2016)
Department of Automatic Control
Abstract
Small ARM Cortex CPU based system boards, called controllers, are used in building automation for regulation of heating, ventilation, and air conditioning. A controlling project can incorporate several thousands of these controllers. The controllers communicate with a SCADA system over the TCP/IP protocol. For the purpose of testing the Supervisory Control And Data Acquisition (SCADA) system when communicating with several hundred controllers simultaneously, a software implementation of a controller that can run in multiple instances, is needed. In this thesis, three different kinds of virtual controllers are proposed and evaluated for their performance. The performance data is based on controller’s response time and is acquired in a... (More)
Small ARM Cortex CPU based system boards, called controllers, are used in building automation for regulation of heating, ventilation, and air conditioning. A controlling project can incorporate several thousands of these controllers. The controllers communicate with a SCADA system over the TCP/IP protocol. For the purpose of testing the Supervisory Control And Data Acquisition (SCADA) system when communicating with several hundred controllers simultaneously, a software implementation of a controller that can run in multiple instances, is needed. In this thesis, three different kinds of virtual controllers are proposed and evaluated for their performance. The performance data is based on controller’s response time and is acquired in a benchmark tool that is simulating SCADA. The implementation work consisted of designing and implementing a benchmark tool and three controller solutions: emulated, ported and simulated. The three solutions differ significantly in the number of instances that can be run simultaneously on the same machine. The conclusion is that the simulated solution is the most suitable since it can run in 6000 instances contra the ported with 200 instances. The emulated solution was eventually deemed as impractical to accomplish in the scope of this thesis. (Less)
Please use this url to cite or link to this publication:
author
Lovric, Dalibor and Olsson, Christian
supervisor
organization
year
type
H3 - Professional qualifications (4 Years - )
subject
report number
TFRT-6022
ISSN
0280-5316
language
English
id
8894962
date added to LUP
2016-12-16 13:56:47
date last changed
2016-12-16 13:56:47
@misc{8894962,
  abstract     = {Small ARM Cortex CPU based system boards, called controllers, are used in building automation for regulation of heating, ventilation, and air conditioning. A controlling project can incorporate several thousands of these controllers. The controllers communicate with a SCADA system over the TCP/IP protocol. For the purpose of testing the Supervisory Control And Data Acquisition (SCADA) system when communicating with several hundred controllers simultaneously, a software implementation of a controller that can run in multiple instances, is needed. In this thesis, three different kinds of virtual controllers are proposed and evaluated for their performance. The performance data is based on controller’s response time and is acquired in a benchmark tool that is simulating SCADA. The implementation work consisted of designing and implementing a benchmark tool and three controller solutions: emulated, ported and simulated. The three solutions differ significantly in the number of instances that can be run simultaneously on the same machine. The conclusion is that the simulated solution is the most suitable since it can run in 6000 instances contra the ported with 200 instances. The emulated solution was eventually deemed as impractical to accomplish in the scope of this thesis.},
  author       = {Lovric, Dalibor and Olsson, Christian},
  issn         = {0280-5316},
  language     = {eng},
  note         = {Student Paper},
  title        = {Virtual Controllers},
  year         = {2016},
}