Dialux - ett program för processdiagnostik i en embedded Linux miljö
Typ
Examensarbete på grundnivå
Program
Publicerad
2019
Författare
Linder Saied, Robin
Eide, Emil
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
Embedded Linux is increasingly used in various products and systems. Despite this,
there is a great lack of diagnostic programs for this type of system. The goal of this
project is to start the development of a simple diagnostics program for a process
that runs on embedded Linux. The work is carried out at Diadrom Systems AB,
which is a specialist company with focus on autotech diagnostics. The work has been
limited to monitoring a single process and presenting run values for CPU and RAM
usage in a user-friendly format. The main questions that are dealt with are how to
retrieve the necessary parameters, when should they be retrieved, how often reading
should be done and how the data should be presented. A diagnostics program called
Dialux was created with C / C ++ programming. This was done by developing three
different iterations. A test program was also created to validate Dialux’s function.
As a result, Dialux retrieves run values from the proc virtual file system. The most
suitable built in test is the continuous built in test with the chosen time interval of
two seconds. The data is presented in an Excel document.