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A Proof of Concept for Functional Testing in Agricultural Technology: Automated Test Unit for Milking Point Controller in Dairy Production
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Biomedical Engineering and Health Systems, Health Informatics and Logistics.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Biomedical Engineering and Health Systems, Health Informatics and Logistics.
2025 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Ett Proof of Concept för Funktionstestning inom Lantbruksteknik : Automatiserad Testenhet för Mjölkplatskontroller inom Mjölkproduktion (Swedish)
Abstract [en]

This paper was in collaboration with DeLaval International AB, to evaluate the feasibility of an Automated Test Unit (ATU) for an Milk Point Controller (MPC), which consist of capacitive mechanical button as input and responsive LEDs asoutput. The project explored the use of a solenoid as a actuator and the ability of RGB Color Sensors to differentiate colours through various data processing methods. Actuating a manual button with a solenoid proved feasible, however the high power consumption may contribute to the solutions disadvantages. Reading and differentiate colours through an RGB colour sensor showed to be successful by both K-Mean clustering and Sliding Window Maximum (SWM), while the CIE system was not able to be effectively applied on this project. The SWM was selected and tested on the MPC LEDs with great result. For future evaluation of the feasibility of an ATU, it is recommended to further investigate alternative actuators. To support a broader range of colours, focus on ensuring compatibility with the CIE system is advised. Additionally, continued development of the communication system is recommended.

Abstract [sv]

Denna studie genomfördes i sammarbete med DeLaval International AB för att undersöka möjligheten att utveckla en automatiserad testenhet (ATU) för deras mjölkplatskontroller (MPC). MPCs insignal består av mekaniska kapacitiva knapparsamt responsiva LEDs som utsignal. Projektet undersöker användningen av solenoider som ställdon samt färgidentifieringsförmågan hos RGB färgsensorer, genom diverse databehandlingar. Det visade sig vara möjligt att manövrera en manuell knapp med en solenoid, men en nackdel var däremot den höga strömförbrukningen. Inläsning av data via RGB färgsensorer samt färgigenkänning via ”K-Mean” kluster och ”Sliding Window” maximum (SWM) gav goda resultat. Däremot gick det inte att applicera CIE systemet med ett effektivt utfall. SWM kunde senare även appliceras på MPC LEDs och urskilja dess färger. För framtida utvärderingar rekommenderas det att se över alternativ till ställdon. Ifall en bredare färgskala önskas idetifieras, bör kompatibiliteten med CIE systemet ses över. Samt rekommenderas en vidare utveckling av kommunikationsystemet.

Place, publisher, year, edition, pages
2025.
Series
TRITA-CBH-GRU ; 117
Keywords [en]
DeLaval International AB, Automated Test Unit, Capacitive Button, Solenoid, Colour differentiation, RGB colour sensor, K-Mean Clustering, Sliding Window Maximum, CIE system
Keywords [sv]
DeLaval International AB, Automatiserad testenhet, Kapacitiv knapp, Solenoid, Färgidentifiering, RGB-färgsensor, K-Mean klustring, Spridningsdiagram, ’Sliding Window’ maximum, CIE system
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-364328OAI: oai:DiVA.org:kth-364328DiVA, id: diva2:1966780
External cooperation
Delaval International AB
Subject / course
Electronics and Embedded Systems
Educational program
Bachelor of Science in Engineering - Electrical Engineering
Supervisors
Examiners
Available from: 2025-06-12 Created: 2025-06-10 Last updated: 2025-06-12Bibliographically approved

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CiteExportLink to record
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