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3 Uppsatser om J1939 - Sida 1 av 1

Implementering av ISOBUS Virtual Terminal på fordonsdatorn CCP XS

Modern agriculture equipment are more computer based today, and many equipments use a terminal in the tractor where the driver have the opportunity to make adjustments to the equipment. This is the reason why ISO developed a new standard called ISOBUS. It is a communication standard based on CAN specially adapted for griculture equipments. The purpose of the standard is that it should be ossible to equip a tractor with a standard terminal called Virtual Terminal that can be used to control the equipment. The use of the terminal should be independent of the manufacturer of the tractor as well as of the equipment.The purpose of this report is to ?nd a solution of how to use CC Systems on-board computer, CCP XS, as a Virtual Terminal.

Växelväljare i stadsbuss

Växelväljaren som Scania använder i dagsläget har stort inbyggnadsdjup vilket skapar problem vid integration i instrumentbrädan, dessutom har glödlamporna för indikationsbelysningen kort livslängd. Utvecklingen mot distribuerade system har gjort det möjligt för Scania att använda en egenutvecklad växelväljare och därför vill man undersöka möjligheten för en egen konstruktion.Konceptet som presenteras i detta examensarbete är en mycket kompakt enhet, inbyggnadsdjupet är endast en fjärdedel av den växelväljare som används i dagsläget. Tryckknapparna utgörs av en silikonknappsats som är genomlyst. Till indikations- och grundbelysning används OSRAMs HYPER T66. Detta är en kapsel som innehåller tre av varandra oberoende lysdioder.

CAN-understödda FMS-tjänster för entreprenadbranschen

The comprehensive purpose of this Master of Science thesis is to examine which fleetmanagement services for engineering vehicles, ?Fleetech? preferablyought to develop inorder to reach a broad market and meet the demands of contractors.Scanty explained, fleet management is the management of a company's vehicle fleet and theservices can include a range of functions such as driver management and fuel management. Inshort the thesis encompasses four sections:1.Survey of the general contractor industry: The survey has been preformed toevaluate the potential size of the market for fleet management services in the generalcontractor industry.2.Needs analysis: The needs analysis aim was to define what contractors tasks andgoals are, and to determine what functions they want and need from a system.3.The use of CAN and the technical premises: The prerequisite for developing asophisticated and generic system is that vehicle data can be accessed from the CANbuss.The use of CAN standards in construction equipment has therefore beenexamined.4.Specification: An explicit set of requirements have been set to be satisfied by a fuelmanagement service, based on CAN standard protocol J1939.Important conclusions: The use of CAN protocol standards are extensive and the prerequisitesfor developing elementary and CAN based services good. The services should be compatiblewith different manufacture?smachines.