Analogy Ships Powerful New Control System Design Analysis Tools.BEAVERTON, Ore.--(BUSINESS WIRE)--Sept. 3, 1997-- Tools Add Control System Design Capabilities to SaberDesigner(TM) Analogy Inc. has extended its popular SaberDesigner family of design and analysis tools to include control systems analysis. The company announced today the inclusion of two powerful new products with its Saber(R) 4.2 release: Linear Systems Analysis (LSA LSA - Link State Advertisement ) and an updated version of its popular SaberLink(TM) interface, both now available on Windows NT (Windows New Technology) A 32-bit operating system from Microsoft for Intel x86 CPUs. NT is the core technology in Windows 2000 and Windows XP (see Windows). Available in separate client and server versions, it includes built-in networking and preemptive multitasking. and UNIX UNIX Operating system for digital computers, developed by Ken Thompson of Bell Laboratories in 1969. It was initially designed for a single user (the name was a pun on the earlier operating system Multics). platforms. LSA -- Linear Systems Analysis LSA is ideal for use in designing control system electronics, including the sensors and actuators used in devices such as cruise control See adaptive cruise control. , anti-lock brakes, aircraft flight controls, robotics and other motion control devices. The new LSA product facilitates control system design for Saber, Analogy's mixed-signal and mixed-technology simulator. Control systems monitor and regulate the behavior of a dynamic system and have numerous applications in the automotive, aeronautics, computer peripherals and industrial controls industries. Control system design has previously been hampered by the incompatibility between hardware tools and system level tools. Analogy's new products can now dramatically improve the communication between system-level design engineers and hardware engineers. Using LSA with Saber simulator, the system designer creates the control system, or the hardware designer verifies that the design meets the specifications set by the control system design. The analyses in LSA generate an approximate linear model to simplify and speed design analysis and verification. Following are samples of LSA's methods of analysis. -- Pole/zero analysis extracts the poles and zeros of a design. This analysis provides a description of system dynamics System dynamics is an approach to understanding the behaviour of complex systems over time. It deals with internal feedback loops and time delays that affect the behaviour of the entire system. indicating speed and stability. -- Root locus In control theory, the root locus is the locus of the poles and zeros of a transfer function as the system gain K is varied on some interval. The root locus is a useful tool for analyzing single input single output (SISO) linear dynamic systems. analysis determines how poles are affected as a design parameter is swept over a range of values. -- Time and frequency response estimation helps designers quickly and accurately visualize how a control system will perform. -- Automatic pole-zero measurements compute the most popular control system metrics -- damping ratio The damping ratio is a parameter, usually denoted by ζ (zeta), that characterizes the frequency response of a second order ordinary differential equation. It is particularly important in the study of control theory. It is also important in the harmonic oscillator. , natural frequency and quality factor -- using the powerful SaberScope(TM) graphical waveform analyzer. LSA Analysis can determine whether the control system meets stability specifications. With the LSA option, system designers can incorporate accurate and up-to-date models for hardware into the system-level analysis, which means control engineers can make necessary revisions earlier in the design process. "Analogy's customers design high-performance, cost-sensitive control systems and their components," said Doug Lundin, vice president of marketing. "With LSA, designers have an unprecedented ability to identify stability problems in mass-produced products before going to final design." Using LSA, designers can quickly evaluate the effect of different tolerances on the stability of mass-produced systems, helping reduce manufacturing costs. One of the major obstacles in control system design has been predicting how a design will behave when mass-produced. Tolerances of electrical, mechanical and other parts "stack up," degrading stability of the nominal design. Analogy's LSA is the only simulation product that can automatically perform statistical stability analysis. SaberLink First shipped in 1996, the SaberLink interface encapsulates the popular system level analysis and data visualization See information visualization. package, MATLAB (MATrix LABoratory) A programming language for technical computing from The MathWorks, Natick, MA (www.mathworks.com). Used for a wide variety of scientific and engineering calculations, especially for automatic control and signal processing, MATLAB runs on Windows, Mac and (R), within the SaberDesigner environment. As part of Analogy's 4.2 release of Saber, SaberLink has been ported to Windows NT in addition to UNIX and works with the new 5.1 version of MATLAB. The SaberLink interface lets you use MATLAB's signal processing See DSP. , control design and system identification capabilities in the SaberDesigner environment. Numerical data Numerical data (or quantitative data) is data measured or identified on a numerical scale. Numerical data can be analysed using statistical methods, and results can be displayed using tables, charts, histograms and graphs. from MATLAB can be viewed and analyzed graphically in SaberScope or used as stimulus in Saber. "Developing advanced control systems that meet strict performance and reliability requirements is often a very difficult task," said Doug Lundin. "With Analogy's SaberLink interface, designers can use MATLAB within SaberDesigner to help them more easily meet these strict requirements." The SaberLink interface is particularly useful for hardware designers, as it gives them access to MATLAB's broad range of analysis, synthesis and data visualization tools. Most importantly Adv. 1. most importantly - above and beyond all other consideration; "above all, you must be independent" above all, most especially , the SaberLink interface eliminates the error-prone and tedious manual translation of data between tools, facilitating true concurrent design. SaberLink enables system identification for model creation, signal processing for filter design and synthesis and advanced control system analysis techniques. You can also use the pole-zero results computed from LSA, transfer them MATLAB via SaberLink, and use them to design control laws and compensation. Price and Availability The LSA and SaberLink options are available immediately on both UNIX and Windows NT platforms. The LSA option is priced from $5,000 per seat. The SaberLink interface is priced from $2,500 per seat. Founded in January 1985, Analogy Inc. is a world leader in the development of high-performance design and analysis software and model libraries for the design of mixed-signal and mixed-technology systems. The company's products are used in the aerospace, automotive/transportation, semiconductor, telecommunications, computer peripherals, medical and industrial control industries. Analogy has offices and support staff throughout the United States, Europe and Asia and is headquartered in Beaverton. Analogy is a publicly traded company publicly traded company A company whose shares of common stock are held by the public and are available for purchase by investors. The shares of publicly traded firms are bought and sold on the organized exchanges or in the over-the-counter market. (NASDAQ NASDAQ in full National Association of Securities Dealers Automated Quotations U.S. market for over-the-counter securities. Established in 1971 by the National Association of Securities Dealers (NASD), NASDAQ is an automated quotation system that reports on :ANLG ANLG Analog ). For on-line product information, visit our Web site at: http://www.analogy.com . -0- Analogy is a registered trademark and SaberDesigner, SaberScope and SaberLink are trademarks of Analogy Inc. Saber is a registered trademark of American Airlines Inc., licensed to Analogy Inc. MATLAB is a registered trademark of The Math Works Inc. All other companies and products are trademarks of their respective manufacturers. CONTACT: Young & Roehr Inc. Diana Wickizer, 503/222-0626 dwickize@young-roehr.com |
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