ETVO is a set of C++ classes to compute transfer series for Weighted Timed Event Graphs and for Timed Event Graphs with partial synchronizations. Either the user downloads the C++ sources and writes programs in C++, or he can use one of the basic calculators now available online. The online tools have been produced by Emscripten (C++ to WASM).
• An « online version » of LMinMaxGD (series in MinMax[[g,d]]). A script (written in javascript) can be interpreted mmgdW.html (May 2023)
• An « online version » to handle series of E[[d]] (to describe Weighted Timed Event Graphs) A script (written in javascript) can be interpreted seriesEdW.html (May 2023)
• An « online version » with the syntax of the calculator etvoEM.html
• An « online version » dealing with series that are both Event-variant and Time-variant etvoEM_ET.html
How to use the Calculator/Interpreter :CalculatorETVO.pdf
Example : a Timed Event Graph that is Event-variant and Time-variant simTrans.html scriptExample.txt
This version 2.3 (20/05/2023) is still a Beta version. StartUpInstructions.pdf
etvolib2.3.zip: C++ sources and examples
Documentation (created with Doxygen)
ETVOintroduction.pdf (An introduction to Event-variant and Time-variant Operators handled in ETVO)
Animations: some animations to illustrate the behaviour of max-plus, E-variant and T-variant systems, in the context of manufacturing systems (conveyors, machines, synchronisations, batch ...).
These are the examples treated in the Examples chapter of the ETVO introduction.
Example 1: A max-plus system that can be modelled by a TEG. 3 equivalent systems are simulated in parallel.
Example1
Example 2: Example 1 with a neutral output feedback.
Example2
Example 3: A system with E-operators (batch,duplicate). An equivalent E-variant system is simulated in parallel.
Example3
Example 4: A system with E-operators (demux/mux). An equivalent E-variant system is simulated in parallel.
Example4
Example 5: A system with E-operators (demux/mux). An equivalent E-variant system is simulated in parallel.
Example5
Example 6: A system with a variant delay (T-operator). An equivalent T-variant system is simulated in parallel.
Example6
Example 7: A system both E-variant and T-variant. An equivalent system is simulated in parallel (with T-variant and demux).
Example7
Example 8: A production cell both E-variant and T-variant. An equivalent system is simulated in parallel (with 3 synchronized T-variant systems adn E-operators).
Example8
For any question : send an email to bertrand.cottenceau(at)univ-angers.fr