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Life-Saving CPR Device Wins Create The Future Design Contest

LifeBelt® CPR, a new device that makes it easy for anyone to perform high-quality CPR compressions in the event of cardiac arrest, has won the $20,000 grand prize in the 2008 Create the Future Design Contest sponsored by Tech Briefs Media Group and Dassault Systèmes SolidWorks Corp. Lifebelt was among a record 1,091 entries in the seventh annual contest.

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Using Virtualization to Secure Mobile Device Designs

Mobile devices are increasingly coming under attack from malicious applications. As more complex operating systems (OS), such as Symbian, Windows Mobile, and Linux are used in handsets, providing security updates and identifying new vulnerabilities has become more complicated. Addition ally, frequent patching and rewriting of code to keep one step ahead of hackers undermines the utility and longevity of legacy software. What developers really need is an environment that is inherently safe from attack and provides the appropriate level of security for all code running in the target device. Secure, segregated areas for critical code must be combined with secure communications in order to provide protection for mobile devices.

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StackableUSB™ Adapting PC Technology to the Embedded Market

Embedded systems and desktop PC’s have had a love hate relationship over the years. The PC has been the source of significant technological advances that have enabled embedded systems to evolve to their current levels of sophistication, using the faster processors and highly-integrated functionality of the CPU cores available today. Additionally, the PC world has also spun off I/O buses, both serial and parallel, that have enabled embedded systems designers to expand and configure their system I/O. On the other hand, the embedded industry has often been wary to adopt PC technology due to the short life cycle some PC technologies experience.

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Making the Move to Digital in Machine Vision

Analog cameras dominated the early years of machine vision systems, offering adequate performance, a simple interface, and a moderate price. Technology advances, however, are now tipping the scales in favor of digital cameras for most new and many legacy applications. Dropping prices, standardized interfaces, and opportunities for customized preprocessing are making the analog to digital transition painless and profitable.

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Increasing System Flexibility Using FPGAs

The proliferation of FPGAs into the embedded computing industry has opened up many new pathways for designers to design cost-effective systems that will withstand technology upgrades, changes in application requirements, and requests for low volumes for system components. Because it allows a user to update functionality after the device has left the manufacturer, FPGA technology gives embedded designers the flexibility to configure both customized and standard products. They can rethink the way systems are constructed and build ones that significantly advance existing technologies and blaze new paths for cutting-edge embedded systems.

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Lithium-Ion Batteries Fuel the Future of Automotive Design

In 1924, General Motors president Alfred P. Sloan Jr. devised annual model-year design changes in order to maintain unit sales. Body shapes faced cosmetic changes every year, whether or not the underlying automobile had changed. This breakthrough strategy had widespread effects on the automobile business, automotive design, and eventually the United States economy. In recent years, amongst a worsening economy and a struggling auto industry, the underlying automobile has changed rapidly, with emphases on efficiency and environmental friendliness. As industrialized nations begin to devote serious attention to lessening dependence on oil and at improving emissions, the electrification of the automobile is a very real solution.

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An Innovative Approach to Shaker Testing

By Marc Marroquin Director of Marketing LMS North America Troy, MI When it comes to testing products for long-term durability, shock exposure survival, or accelerated life testing, the classic technique most engineers turn to is vibration testing with a shaker table. These controlled experimental tests have been successfully employed in the worlds of automotive, aerospace, consumer products, and military testing for more than 50 years. This classic test technique is accepted by all industries when durability, survivability, and life-testing data are required. Despite a long and proven track record, vibration shaker testing has its drawbacks. Shaker tests can be expensive, require dedicated test facility/ equipment and trained personnel, and can take days (sometimes weeks) to complete. On top of that, it is not possible to test an object until either a physical prototype or early production unit becomes available. By that time, most design decisions have been made and it is difficult to redesign the product to resolve problems identified during shaker testing. These facts have been accepted as “the way shaker testing is done,” since there was no better way to perform these types of tests. In recent years, engineers have been turning to new technologies like CAE (Computer Assisted Engineering) to help develop products faster and more intelligently. The benefits of integrating CAE into an engineering program are well documented and provide time, cost, and development advantages that enable companies to get better products on the market faster. By applying CAE technology to shaker testing, a new technology is born: Virtual Shaker. The Virtual Shaker technology is quite simple: simulating a vibration shaker test in the digital domain. By using simulation to “virtually shake-test” a device, many of the inherent disadvantages of physical shaker testing are minimized or eliminated. There is no need to wait until a physical device is available, the time and expense associated with shaker testing is dramatically reduced, the “virtual” testing is completely nondestructive, and Virtual Shaker simulations can point out problems well before hard design decisions are made. Along with the obvious benefits pointed out above, Virtual Shaker testing also introduces the ability to play “what if” scenarios with products. Since the actual product to be tested is purely digital, engineers can quickly and easily make changes to the product and see what happens after the change has been made. By combining Virtual Shaker with optimization tools, it is possible to run hundreds of design iterations (changing mass, shapes, materials, boundary conditions, etc.) in automatic cycles to find the best-case scenario. Virtual Shaker testing is being used today by several aerospace manufacturers and space research facilities to virtually shake satellites. The benefit to these engineers is clear — saving money and reducing mission failure risk. But you don’t have to be a satellite designer to appreciate the benefits of Virtual Shaker testing. This technology can be applied to almost any industry where shaker testing is common, such as automotive, aerospace, consumer products, medical devices, and more. For more information on Virtual Shaker Testing, click here, or e-mail: info.us@lmsintl.com.

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