Modular CAN Bus based control unit
Geizans, Niklavs (2017)
Geizans, Niklavs
Metropolia Ammattikorkeakoulu
2017
All rights reserved
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-201705046349
https://urn.fi/URN:NBN:fi:amk-201705046349
Tiivistelmä
This Final Year Project (FYP) was carried out for a Finnish based research and development company – Janesko Oy. The goal was to design a modular and highly customisable control unit for specialized optical sensor (refractometer) control and monitoring.
Design was based on an existing implementation called a Multichannel User Interface (MI). Two modularity limiting factors in MI were identified and designs to address them were proposed and tested.
Firstly, over-current protection circuitry was reimplemented to not require a microcontroller assisted function. The new circuitry was simulated in LT Spice IV simulation software and confirmed to be functioning. Secondly, an extension to a proprietary communications protocol called MTR CAN was developed in order to address its modularity limiting factors. The new extension was tested on the existing MI electronics and confirmed to be functioning.
While a prototype implementation of the new control system could not be done due to time constrains, the proposed design has been shown by testing and simulation to be viable and with further development has potential in a future commercial application.
Design was based on an existing implementation called a Multichannel User Interface (MI). Two modularity limiting factors in MI were identified and designs to address them were proposed and tested.
Firstly, over-current protection circuitry was reimplemented to not require a microcontroller assisted function. The new circuitry was simulated in LT Spice IV simulation software and confirmed to be functioning. Secondly, an extension to a proprietary communications protocol called MTR CAN was developed in order to address its modularity limiting factors. The new extension was tested on the existing MI electronics and confirmed to be functioning.
While a prototype implementation of the new control system could not be done due to time constrains, the proposed design has been shown by testing and simulation to be viable and with further development has potential in a future commercial application.