Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Digitala backspeglar - Fysisk-ergonomiska konsekvenser av arrangemang av digitala backspeglar i en lastbilshytt
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.).
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.).
2016 (Swedish)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Digital rear-view mirrors - Physical ergonomic implications of arranging digital rear-view mirrors in a truck cabin (English)
Abstract [sv]

Backspeglar på dagens lastbilar bidrar till fordonets bränsleförbrukning på grund av det luftmotstånd som de orsakar. Detta bidrag kan minskas om de fysiska speglarna ersätts av digitala motsvarigheter, i form av kameror monterade på lastbilens utsida och bildskärmar placerade inuti lastbilshytten. Ett sådant ingrepp medför en rad möjligheter för förbättring av inte bara fordonets verkningsgrad utan även förarmiljön. Med digitala backspeglar så skulle det vara möjligt att visa stödjande grafik i den vy som presenteras på bildskärmarna; föraren skulle kunna förses med extra siktfält; och förarens direktsikt skulle kunna förbättras. I detta examensarbete, genomfört i samarbete med Scania CV AB, har ett antal aspekter av arrange-mang av digitala backspeglar undersökts med hänsyn till deras fysisk-ergonomiska konsekvenser. Ar-betet behandlar bildskärmskomponenterna i kamera-monitor-systemet, inklusive deras position, storlek och det visade siktfältets omfattning, i syfte att utveckla rekommendationer för hur digitala backspeg-lar bör implementeras, ur ett fysisk-ergonomiskt perspektiv. Inledningsvis genomfördes en förstudie, i vilken förare av tunga lastbilar intervjuades på kvalitativt semi-strukturerat vis, och en enkätstudie genomfördes via Scanias officiella Facebook-sida. Därefter genererades och utvärderades ett antal koncept, bland annat med hjälp av Oculus Rift och digitala prototyper i en virtuell verklighet. Genom att, för vägledning, kombinera Quality Function Deployment-metoden och Pughmetoden val-des tre principiellt olika koncept som därefter representerades i form av fysiska prototyper i en körsi-mulator med fast bas, i vilken användbarheten hos dem testades. I testet mättes förares prestations-förmåga i termer av filpositionens standardavvikelse och deras förmåga att upptäcka närmande bakom-varande fordon. Därutöver ombads deltagarna att subjektivt skatta sin arbetsbelastning.  Med stöd av resultaten från körsimulatortestet föreslås två typer av bildskärmsarrangemang samt rekommendationer för det fortsatta arbetet med implementeringen av digitala backspeglar i lastbils-hytten.

Abstract [en]

The rear-view mirrors on today’s trucks contribute to the fuel consumption of the vehicle as a result of the air drag they cause. This could be decreased by replacing the physical mirrors with digital equivalents, consisting of cameras mounted on the truck and monitors positioned inside the cabin. Such a replacement brings about a number of opportunities for enhancing not only the efficiency of the truck but also the driver environment. With digital rear-view mirrors, supplementary information could be superimposed on the rear view shown in the monitors, additional fields of vision could be presented to the driver and the direct vision could be improved. In this master thesis project, carried out in cooperation with Scania CV AB, a number of aspects of digital rear-view mirror arrangement were investigated with regard to their physical ergonomic impli-cations. The study considers the monitor components of the camera-monitor system, including their position, size and the field of vision they are to present, with the purpose of developing recommenda-tions for how digital rear-view mirrors should be implemented, from a physical ergonomics point of view. Initially, a prestudy was performed, in which drivers of heavy trucks were interviewed in a qualitative semi-structured manner, and a survey study was carried out through Scania’s official Facebook page. Next, concepts were generated and evaluated using, among other methods, digital prototypes in a virtual reality environment with the help of Oculus Rift. Combining the Quality Function Deployment method and the decision-matrix method for guidance, three principally different concepts were selected and subsequently represented in the shape of physical prototypes in a fixed-base driving simulator, in which they were subjected to usability testing. In the testing, driving performance was measured in terms of the participants’ standard deviation of lane position and their ability to detect rearward approaching vehicles. In addition, the participants were asked to subjectively assess their perceived workload. Supported by the results of the driving simulator test, two types of monitor arrangements are suggested together with recommendations for the continued work of implementing digital rear-view mirrors in the truck cabin.

Place, publisher, year, edition, pages
2016.
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-187908OAI: oai:DiVA.org:kth-187908DiVA: diva2:932270
Educational program
Master of Science in Engineering - Design and Product Realisation
Supervisors
Examiners
Available from: 2016-06-01 Created: 2016-06-01 Last updated: 2016-06-01Bibliographically approved

Open Access in DiVA

fulltext(5171 kB)223 downloads
File information
File name FULLTEXT01.pdfFile size 5171 kBChecksum SHA-512
3a538d6063ace5474f52fb86c14e3ddfb5c13b59e3695a21727808ee4be18dfdbdcb6c31fabbc78f3b2241edf41cb986e050a896c7ebc5796fa89a6a894dcdc5
Type fulltextMimetype application/pdf

By organisation
Machine Design (Dept.)
Mechanical Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 223 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 276 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf