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Master project of Jelte Leijenaar

This is the page of the Master project of Jelte Leijenaar. This project is done for Neopost Technologies B.V. and this page is the main communication channel for this project.



Project Goals

On this page the goals of this masters project are posted.

Tue Goals

1. Feeder-Inserter Interface

This Interface is needed for proper cooperation of the Inserter and the Feeder part of the DS-86. This Interface consists of three parts:

  • Drive shaft: The Inserter drives the Feeder via this driveshaft;
  • Documentset Stream: The Documentsets are transferred from the Feeder to the Inserter;
  • Communicationchannel;
    • Job properties;
    • Job Progress;
    • Diagnostics*.

For this Interface a proper description will be made as well as a /chi model to represent this Interface.

2. Low-level /chi model of the DS-86

This /chi model will consist of the smallest individual hardware pieces, such as sensors and actuators, but some collection of sensors and actuators may work without much external control like the fold table. This fold table needs just a few inputs with which it can execute the folding process without further external control.
These elements can later be re-used in the spirit of the NeoMultiModel Elements:

Feeder Inserter
Document Feeder Envelope Feeder
Vertical Track Envelope track: Track part 1
Collator Track part 2 including Envelope opener
Intellideck* Inserter
Fold Tables: Table 1 Envelope Exit: Present to Deck*
Table 2* Envelope Stacker
Table 3* Side Exit*
Sensors Actuators
Pulse sensors Motor
Photo-cell Clutches
Double Feed Control* Selenoid
Optical Mark Recognition*

3. Supervisory controller of the low-level model

Because the Supervisory Control Theory (SCT) is a fast and error-low way of generating a supervisor, the Tu/e would like this to be applied to the low-level model. This way Neopost will be able to get to know the SCT and see how it can fit in the NeoMultiModel. This Supervisor will contain the Interface as shown under goal 1. For this theory the next steps will have to be performed:

  • Automata for the low-level parts discussed at goal 1;
  • Requirements for proper cooperation of the Automata from the previous point, also in Automata form;
  • Optimal Sub-Controllers for at least the Feeder and the Inserter, maybe even smaller;
  • Overal Optimal Controller for the Sub-Controllers including the Interface between the Feeder and the Inserter.

* for later implementation

Neopost Goals

  • Describing the modelling domain (DS-86), modelling objectives and the chosen modelling approach;
  • Motivating suitability of the chosen modelling approach for modelling DS-86;
  • Illustrating decomposition of DS-86 by applying the chosen modelling approach;
  • Describing treatment of multidisciplinary interfaces by the chosen modelling approach;
  • Demonstrating applicability of the modelling result in generating control strategies for the modelled system;

Bonus points:

  • Demonstrating applicability of the modelling results in verifying requirements consistency of the described interfaces;
  • Demonstrating simulateability of the created model;
  • Improving accessibility of the created model for a broad set of project stakeholders (visualisation, various views);
  • Proposing derivation of testing specifications on basis of the interfaces descriptions.
twins/master_jelte_leijenaar/goals.txt · Last modified: Thursday, 25 September 2008 : 14:02:50 (external edit)