Announcing: HyVisual 5.0-alpha - Hybrid System Visual Modeler
HyVisual is a free, open-source block-diagram editor and simulator for hybrid systems based on Ptolemy II. Version 5.0-alpha has a more rigorous semantics than previous versions and deals predictably and understandably with a wider range of models. The software can be downloaded from:
http://ptolemy.eecs.berkeley.edu/hyvisual
Hybrid systems are systems with continuous-time dynamics, discrete events, and discrete mode changes. This visual modeler supports construction of hierarchical hybrid systems. It uses a block-diagram representation of ordinary differential equations (ODEs) to define continuous dynamics. It uses a bubble-and-arc diagram representation of finite state machines to define discrete behavior.
The semantics of HyVisual is described in the following paper, available on the Ptolemy website (http://ptolemy.eecs.berkeley.edu):
Edward A. Lee and Haiyang Zheng, "Operational Semantics of Hybrid Systems," Invited paper in Proceedings of Hybrid Systems: Computation and Control (HSCC) LNCS 3414, Zurich, Switzerland, March 9-11, 2005.
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Edward A. Lee
Professor, Chair of the EE Division, Associate Chair of EECS
231 Cory Hall, UC Berkeley, Berkeley, CA 94720
phone: 510-642-0253 or 510-642-0455, fax: 510-642-2845
[EMAIL PROTECTED], http://ptolemy.eecs.berkeley.edu/~eal
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