Consistent sensor values on a real-time ethernet network

• Industrial control systems often exhibit a need for short latencies and/or consistent data gathering. In a system with limited resources it is a challenge to achieve the combination of short latencies and consistent data. In this paper we propose three different architectural solutions to this challenge, each having different trade-offs: one that gives a consistent set of data and also a short latency but with a higher resource usage, a second alternative that reduces resource needs but at the cost of an increased latency, and a third and final solution that reduces resource needs to a minimum but in doing so also increasing the latency. The results presented in this paper suggest that it is possible to get low latency and robustness at the cost of performance. 

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Datorsystem (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Computer Systems (hsv//eng)

Nyckelord

consistent data

embedded systems

Ether CAT

latency

real-time networks

syncronization

Economic and social effects

Ethernet

Architectural solutions

Industrial control systems

Real time network

Real-Time Ethernet Networks

Resource usage

Real time systems

Publikations- och innehållstyp

ref (ämneskategori)

kon (ämneskategori)