Communication towers.

Wireless Process Instrumentation: An End-User’s Perspective

Wireless technology adoption in many industrial sectors, including process automation, has been growing during the past decade. Industry consortiums, standards organizations, vendors, and end users have been pursuing the technology with varying degrees of interest. We explored wireless solutions for suitability with the potential to bridge gaps in process automation, especially in asset management, remote […]

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Packaging machine in brewery

Bi-Objective Redundancy Allocation Problem

Abstract: Traditionally, in the redundancy allocation problem (RAP), two general classes of optimization problems are considered; reliability optimization and availability optimization. Contrary to reliability optimization, fewer researchers have studied availability optimization to find out the optimal combination of components type and redundancy levels for each subsystem in a system for maximizing (or minimizing) the objectives. […]

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Teamwork Collaboration People Diversity Concept

Leveraging Industry Silos to Develop New Business Opportunities

There has been a great deal of discussion about isolated silos in industry creating barriers to growth, but they also offer opportunities for those willing to take the initiative. The term silo thinking is used in business to describe the mindset when departments do not share information and collaborate with others in the same company. […]

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May-Jun-INT-Process-Automation_blog

Integrating DCS I/O to an Existing PLC

At the NASA Glenn Research Center (GRC) in Cleveland, Ohio, existing programmable logic controller (PLC) input/output (I/O) was replaced with distributed control system (DCS) I/O, while keeping the existing PLC sequence logic. Until about the year 2000, the GRC’s central process system (CPS) distributed control system used PLC I/O to remotely control and monitor process […]

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Satellite above Earth

Finite-Time Control for Nonlinear Spacecraft Attitude

Abstract: In this paper, a fast terminal sliding mode control (FTSMC) scheme with double closed loops is proposed for the spacecraft attitude control. The FTSMC laws are included both in an inner control loop and an outer control loop. Firstly, a fast terminal sliding surface (FTSS) is constructed, which can drive the inner loop tracking-error […]

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engineer with the piping of an industrial waste water cleaning f

January Education Programs and Webinars from ISA

As 2014 comes to a close, it’s time to add training and education opportunities to your New Year’s resolution list. ISA courses in January will cover fundamental courses in automation and control, communications, safety and cybersecurity. A course on ANSI/ISA99 (IEC 62443) standards will be hosted in Canada and check out the webinar series introduction […]

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Tank equipment

What are the Implications of Reactor Type on Control?

Reactors involving liquid reactants can be categorized as continuous stirred tank reactors (CSTR), batch, fed-batch (semi-batch or semi continuous), and plug flow. In continuous reactors, there is a continuous discharge of product flow. A level controller is used in the CSTR to maintain a level that provides enough reaction time for a given production rate. […]

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Control Room

Estimation of Region of Attraction for Polynomial Nonlinear Systems

Abstract: This paper introduces a numerical method to estimate the region of attraction for polynomial nonlinear systems using sum of squares programming. This method computes a local Lyapunov function and an invariant set around a locally asymptotically stable equilibrium point. The invariant set is an estimation of the region of attraction for the equilibrium point. […]

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May-Jun-INT-Factory-Automation_blog

Industrial Automation and Embedded Vision: A Powerful Combination

In order for manufacturing robots and other industrial automation systems to meaningfully interact with the objects they are assembling, as well as to deftly and safely move about in their environments, they must be able to see and understand their surroundings. Cost-effective and capable vision processors, fed by depth-discerning image sensors and running robust software […]

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2014 Hall of Fame Photo

Listen, Celebrate, Recognize – The 2014 ISA Hall of Fame

Involve everyone in everything… “Wholesale involvement is necessary to engender the level of quality, service, and flexibility required by today’s markets. Intense communication is required to foster that involvement; we must: Listen constantly, congregate, or share ideas/information, and recognize achievement Celebrate –informally and formally–the “small wins” that are indicative of the solid day-to-day performance turned […]

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