Complex control systems integrate a variety of functions and capabilities, which will in general rely on different computational mechanisms. The plant model may be represented as a set of ordinary differential equations, the mode switching logic may be expressed as a finite state machine, and dataflow models may be used to capture the architecture of a sensor processing subsystem, for example. ...

This is a chapter from the book System Design, Modeling, and Simulation using Ptolemy II This work is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License. To view a copy of this license, visit: http://creativecommons.org/licenses/by-sa/3.0/, or send a letter to Creative Commons, 444 Castro Street, Suite 900, Mountain View, California, 94041, USA. Permissions beyond t...

This is a chapter from the book System Design, Modeling, and Simulation using Ptolemy II This work is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License. To view a copy of this license, visit: http://creativecommons.org/licenses/by-sa/3.0/, or send a letter to Creative Commons, 444 Castro Street, Suite 900, Mountain View, California, 94041, USA. Permissions beyond t...

In this note, we show that the sets of all stable commutator lengths in braided Ptolemy-Thompson groups are equal to non-negative rational numbers.

In this paper, we offer an overview of distributed model execution with Ptolemy. Our discussion focuses on the Process Network domain, while the platform that we propose is domain-independent. Components such as DNS and PtAgents are introduced as separate processes in addition to Ptolemy with models running in it. They provide services important to the execution of the system, such as dynamic n...

Ptolemy is a flexible and extensible platform for simulations, rapid prototyping, and other software systems. It is our third generation software environment, building on our experience with Blosim, a signal processing simulation system, and Gabriel, a prototyping environment for real-time signal processing. Unlike its predecessors, Ptolemy does not enforce a single simulation or execution mode...

This is a chapter from the book System Design, Modeling, and Simulation using Ptolemy II This work is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License. To view a copy of this license, visit: http://creativecommons.org/licenses/by-sa/3.0/, or send a letter to Creative Commons, 444 Castro Street, Suite 900, Mountain View, California, 94041, USA. Permissions beyond t...