Features

Multicore Tools for Embedded Systems — Staying Ahead of the Game —

Building a multicore system means dealing with non-determinism. Interactions between tasks running on different cores can occur in a different order, and at a different rate from one run to the next. This makes it harder to reproduce, find, and fix bugs. It also lowers the probability that validations and QA have caught all problems.

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Redesigning COTS Servers for Military Applications

Military and ISR operations are inundated with vast amounts of data collected from an expanding network of sources, including sensor data from UAS, satellites, and remote monitoring stations. Critical information must be processed quickly and reliably, and delivered in real time to command centers and forces on the battlefield. Processing this plethora of information requires a multitude of computers, many of which are outdated or on proprietary platforms. To remain sustainable, systems used for enterprise computing, field operations, warfighting, and command and control, must be continually upgraded or replaced. Many of these systems need to be integrated, consolidated, and securely linked to multiple networks.

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When the Going Gets Tough...

Ruggedization Strategies to Meet SWaP and Performance Needs Within Harsh Military EnvironmentsThe theaters of operation for marine, air and land vehicles continue to redefine the term “rugged environment.” No longer bound by on-board human operators, autonomous and unmanned military vehicles are now free to operate within unparalleled temperature, vibration and shock regimes. The limitation on survivability of such vehicles is defined primarily by the robustness of their internal electronics. To meet these challenges, suppliers of hardened electronic systems must employ various ruggedization techniques.

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Synchronizing Hydraulic Axes in a Pultrusion Machine

Many hydraulically operated machines perform adequately with on/off “bang-bang” valves, but some need special controls to avoid maintenance problems and deliver quality production output. This is particularly true when multiple hydraulic axes need to be synchronized. In these cases, designers should use an electro-hydraulic motion controller with multi-axis synchronization capability.

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Fiber Optic Technology: Shining New Light On An Old Concept

While it may appear state-of-the-art on the surface, fiber optic technology is a fairly simple method of conducting light that has been around for some time. The principle of guiding light by refraction was first demonstrated in the mid 19th century, and has been developing for use in practical applications ever since.

Posted in: Articles, Features, ptb catchall, Photonics

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2010 Create the Future Design Contest Winners E-Book

The 2010 Create the Future Design Contest, sponsored by COMSOL, Inc., PTC, and Tech Briefs Media Group (publishers of NASA Tech Briefs), recognized innovation in product design in six categories: Consumer Products, Machinery & Equipment, Medical, Safety & Security, Sustainable Technologies, and Transportation. On the following pages, you’ll meet the Grand Prize Winner, as well as the winners and Honorable Mentions in all six categories. Congratulations to this year’s winners, and thanks to the nearly 1,000 entrants who submitted their creative design ideas. To view the contest entries e-book, click here.

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Industry Update: CAD and Virtual Prototyping Software

In our annual poll of executives at leading CAD and virtual prototyping software companies, optimism about the market in 2011 was widespread. Trends predicted to favorably impact the CAD market this year include new capabilities for cloud computing, online CAD, mobile applications, and other technologies designed to help users be more productive with easier-to-use tools.A Stagnant Market?A number of the executives we polled indicated that the CAD market has become a “mature” market, meaning that the number of truly innovative improvements in the technology has leveled off. “For several years, the CAD market had been on a fairly steady and maturing path, with incremental improvements to how CAD tools operated,” according to Joan Hirsch, vice president of product design solutions for Siemens PLM Software. “However,” she added, “over the past few years, there has been somewhat of a revolution taking place. While it may have seemed that the introduction of breakthrough technologies was over for CAD, we believe recent advancements like synchronous technology have opened a new chapter in how products are designed.”

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