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Utveckling av en CAN-adapter i ett sensorsystem för övervakning av däcktryck.: Development of a CAN-adapter in a sensor system for tire pressure monitoring.
KTH, School of Technology and Health (STH), Medical Engineering, Computer and Electronic Engineering.
2017 (Swedish)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesisAlternative title
Development of a CAN-adapter in a sensor system for tire pressure monitoring. (English)
Abstract [sv]

Den här rapporten beskriver ett examensarbete i elektroteknik på Kungliga tekniska högskolan. Syftet var att skapa en unik systemlösning där ett CAN-adapterkort (Controller Area Network) skulle integreras med ett system för övervakning av däcktryck i tunga fordon. Målet var att presentera mätvärden från ventilsensorer på en persondator. Systemet för övervakning av lufttryck heter J1939 – TPMS och är en färdig produkt. J1939 – TPMS skickar CAN-ramar på en CAN-buss i J1939-format. Dessa ramar ska läsas in av adapterkortet och presenteras på ett terminalprogram på en persondator. Arbetet har bestått av att utreda hur systemet J1939 – TPMS fungerar i detalj. Rollen för protokollet J1939 och dess förhållande till CAN har förklarats. Hur J1939-ramar tolkas och hur mätdata rörande TPMS avkodas har beskrivits i detalj. Principer för hur en CAN-nod fungerar har klargjorts. Baserat på detta har ett CAN-adapterkort konstruerats. Konstruktionen har inneburit komponentval, design av elektronikschema, design av mönsterkort och utveckling av inbyggd programvara. Resultatet blev ett färdigt och fungerande CAN-adapterkort som har testats med J1939 – TPMS. Kraven för projektet uppfylldes. Dock så kommer mer arbete med kortet och systemet behövas för att det ska bli en färdig produkt. Arbetet genomfördes hos Motion Control i Västerås AB i samarbete med Transeco Däckservice.

Abstract [en]

This report describes a degree project at the Royal Institute of Technology. The purpose was to create a unique system solution in which a CAN adapter card (Controller Area Network) was to be integrated with an air pressure monitoring system for heavy duty vehicles. The goal was to present measurement values ​​from valve sensors on a personal computer. The air pressure monitoring system is called J1939 - TPMS and is a finished product. J1939 - TPMS sends CAN-frames to a CAN-bus in J1939 format. These frames are to be read by the adapter card and presented on a terminal program on a personal computer. The job has been to investigate how the J1939 - TPMS system works in detail. The role of the J1939 protocol and its relationship with CAN has been clarified. Also, a detailed description of how J1939 frames are interpreted and how the measuring data TPMS is decoded is done. Principles for how a CAN node works has been clarified. Based on this, a CAN adapter card has been designed. The design has included component selection, design of electronics schema, design of computer cards and development of embedded software. The result was a ready-to-use CAN adapter card tested with J1939-TPMS. Requirements for the project were met. However, more work with the card will be needed to make it a finished product. The work was carried out at Motion Control in Västerås AB in cooperation with Transeco Däckservice (Transeco Tire Service).

Place, publisher, year, edition, pages
2017. , p. 100
Series
TRITA-STH ; 2017:117
Keywords [en]
TPMS, J1939, CAN, Controller Area Network, SAE, PCB, circuitboard, electronic-schematics design, CAD, firmware, CAN-adapter, microcontroller
Keywords [sv]
TPMS, J1939, CAN, Controller Area Network, SAE, mönsterkort, kretskort, elektronikschema, CAD, inbyggd programvara, CAN-adapter, mikrokontroller
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-215071OAI: oai:DiVA.org:kth-215071DiVA, id: diva2:1146009
External cooperation
Motion Control i Västerås AB; Transeco Däckservice
Subject / course
Electronics and Communications
Educational program
Bachelor of Science in Engineering - Electrical Engineering
Supervisors
Examiners
Available from: 2017-10-02 Created: 2017-10-01 Last updated: 2022-06-27Bibliographically approved

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CiteExportLink to record
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