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Author:Rösgren, Jonatan
Title:Semiautomatic Maintenance Assistance on a Diesel/Gas engine
Semiautomatisk underhållsassistans för en diesel-/gasmotor
Publication type:Master's thesis
Publication year:2005
Pages:xv + 86      Language:   eng
Department/School:Sähkö- ja tietoliikennetekniikan osasto
Main subject:Automaation tietotekniikka   (AS-116)
Supervisor:Koskinen, Kari
Instructor:Pensar, Johan
OEVS:
Electronic archive copy is available via Aalto Thesis Database.
Instructions

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In the closed network of Learning Centre you can read digital and digitized theses not available in the open network.

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Location:P1 Ark S80     | Archive
Keywords:maintenance
testing
tuning
analysing
diagnostics
underhåll
mjukvarukomponent
testing
kalibrering
diagnostik
Abstract (eng): The purpose of this thesis is to study different kinds of control system based maintenance tasks on a Wärtsilä diesel/gas engine and to investigate how such tasks could be semi-automated.
The results of the study were used to implement a prototype, which is able to import and execute these semi-automated tasks.
A typical task is defined as a procedure that assists the operator in performing local and discrete service work.

Four main categories of tasks were identified in the maintenance information system hierarchy: instructions, tests, tunings and analyses.
The study further acknowledges similar tasks throughout the extended product life cycle.
The result discerns a wide area of different procedures with varying development requirements.
The study argues, however, that if a flexible tool were available to handle all these tasks, it could offer excellent comprehensive testing, tuning and analysis opportunities for both customers and in-house engineers at every stage in the product life cycle.

This range of tasks was used as a basis for the prototype tool.
The technical study reviews different software component techniques and tools for task development.
COM techniques are covered in depth, along with high-level development means such as MATLAB, script languages and XML techniques.
The prototype solution turned out to be based, somewhat surprisingly, on the Internet Explorer web browser control used in a local environment.
The implemented prototype offers a programming interface to the control system for task development, with the web control used as an embedded execution host.
The developed prototype proved itself to be a cost-effective and flexible solution for the tasks in question.

The prototype fulfils its stated requirements, and is hence recommended for official implementation.
ED:2006-01-24
INSSI record number: 30541
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