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Distance Laser Measurements
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
2018 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Distance Laser Measurements : En undersökning i hur en lasersensor automatiskt kan rikta sin stårle mot ett önskat objekt (Swedish)
Abstract [en]

A LIDAR that measures distance to an object in motion must be directed with precision. This is something that can be done automatically. In this project, a construction where two LIDAR sensors are attached to each step motors is built. One LIDAR scans the environment in 2D and a second LIDAR is directed based on the information from the scanning sensor. In order to get rid of incorrect values and to find a central position on an object, different variants of moving average filters are used and tested. The result shows that a filter with fewer values included in the average analysis of the filter, resulting in a more stable result, especially when the object being tracked is located far away from the sensor. The results show that the concept can be used for tracking a moving object.

Abstract [sv]

En LIDAR-sensor som mäter avstånd till ett objekt i rörelse måste riktas med bra precision. Detta är något som kan göras automatiskt. I detta projekt byggs en konstruktionen där två stycken LIDAR-sensorer fästs vid var sin stegmotor. En sensor skannar omgivningen i 2D och en andra sensor riktas sedan utifrån informationen från den skannande sensorn. För att får bort felaktiga värden samt för att hitta en position mer centralt på ett sökt objekt används och testas olika varianter av glidande medelvärdesfilter. Resultatet visar att ett filter där färre värden tas med i filtrets medelvärdesberäkningar ger ett stabilare resultat, framförallt då objektet som följs befinner sig på längre avstånd. Resultaten visar att principen går att använda för att rikta en sensor mot ett objekt i rörelse.

 

Place, publisher, year, edition, pages
2018. , p. 58
Series
TRITA-ITM-EX 2018 ; 75
Keywords [en]
Mechatronic
Keywords [sv]
Mechatronik
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-233146OAI: oai:DiVA.org:kth-233146DiVA, id: diva2:1237824
Supervisors
Examiners
Available from: 2018-08-10 Created: 2018-08-10 Last updated: 2018-08-10Bibliographically approved

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