Early phase fault propagation analysis of safety critical factory automation systems

2012 ◽  
Author(s):  
Nikolaos Papakonstantinou ◽  
Seppo Sierla
Keyword(s):  
Early Phase ◽  
Fault Propagation ◽  
Factory Automation ◽  
Safety Critical ◽  
Automation Systems ◽  
Propagation Analysis

Third Party HIL Testing of Safety Critical Control System Software on Ships and Rigs

2012 ◽  
Author(s):  
Øyvind Smogeli ◽  
Trond Augustson
Keyword(s):  
Control System ◽  
Control Systems ◽  
Technology Development ◽  
Emergency Situation ◽  
Third Party ◽  
System Software ◽  
Safety Critical ◽  
Test Methodology ◽  
Automation Systems ◽  
And Performance

The drilling industry is characterized by a rapid and up front technology development to conquer larger water and drilling depths. The level of automation has been steadily increasing over several decades, growing from manually operated sledge-hammer technology to space-age computer-based integrated systems. Most of the automation systems on today’s vessels are put into operation without independent testing. This is a paradox considering that a single control system may be more complex than all the mechanical systems onboard. It is also a paradox that the automation systems often contain safety-critical failure handling functionality that may be difficult or dangerous to test onboard the real vessel, and therefore is not properly tested until it is activated during an emergency situation. These automation systems are essential for the safety, reliability, and performance of the vessels. Examples are the Dynamic Positioning (DP) systems, Power Management systems, Drilling Control Systems, BOP control systems, Managed Pressure Drilling (MPD) systems, and crane control systems. Hardware-In-the-Loop (HIL) testing is a well proven test methodology from automotive, avionics, and space industries, and is now also gaining recognition in the marine and offshore industries. The aim of this paper is to clarify what HIL testing is, how third party HIL testing can be applied to safety critical control system software on drilling ships and rigs, and why this is an important contribution to technical safety, reliability and profitability of offshore operations.

scholarly journals Engineering Processes for Decentralized Factory Automation Systems

10.5772/9504 ◽  
2010 ◽  
Author(s):  
Thomas Wagner ◽  
Carolin Hausner ◽  
Jurgen Elger ◽  
Ulrich Lowen ◽  
Arndt Luder
Keyword(s):  
Factory Automation ◽  
Automation Systems

Primus Automation Division, 2002

2017 ◽  
pp. 1-12
Author(s):  
Robert F. Bruner ◽  
Robert Hengelbrok ◽  
Sean Carr
Keyword(s):  
Interest Rate ◽  
Present Value ◽  
Factory Automation ◽  
Automation Systems ◽  
The Impact

In early 2002, an analyst, Tom Baumann, must propose terms for leasing one of his company's advanced factory-automation systems to a major customer. From the lessor's standpoint, the challenge is simply to design an annuity stream that yields a present value equal to, or greater than, the value of the asset being leased. Certain factors, however, serve to complicate the analysis. The tax exposure and debt rating of the customer are uncertain, leaving the analyst to estimate the impact of alternative lease terms under different tax and interest-rate assumptions. Also, the customer is considering leasing competing systems from companies in Germany and Japan; these competing proposals limit Primus's flexibility in tailoring its proposal. In short, the student's task is to design lease terms that exploit the lessee's tax and interest-rate exposure within constraints set by competitive terms.

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