IDEA :
The Idea is to create a laser projector which tracks objects, and, according to them it projects the required information.
By detecting the surface normals of an object, the system can correct the projection distortion in order to avoid obstacles.
This Augmented Reality technology allows to work without the need of wearable or any additional device.
LASER PROJECTION TECHNOLOGY : In this project we use an Arduino to run a laser show with a laser pointer and component mentioned below…
GALVANOMETER COMPONENTS :
ELECTRONIC SCHEMATIC : The wiring is done like shown in the images below..
APPLICATIONS FOR AR LASER PROJECTOR AND SCANNER :
Architecture : Significant better Project site understanding, Quicker access to large quantities of survey data, Valuable incidental survey data collection, Reliable decisions, Greater communication opportunities (web based, 3D printers, Augmented/Virtual or Mixed reality etc).
Survey : Greater accuracy, More survey measurements in less time , Fewer return site visits, Use of modern technology to provide
better quality products (2D drawings, 3D models etc) and Better commercial aspects.
Building & Plant Engineering : Significant better understanding of the project site, Full 3D survey information rather than ‘limited 2D and assumptions’ , Modelling from scan data ensures less ambiguity, Software solutions allow easy translation from point clouds to BIM datasets.
Civil & Infrastructure Engineering : Fast data capture of vast areas of infrastructure. Larger, more complete datasets are collected and usable for design and operation. The ability to link and share accurate data with various stakeholders. Visualizing infrastructure (horizontal) and building (vertical) aspects of projects together.
Construction, Quality Assurance/Quality Control : Vastly improved Quality Control. The ability to reduce costly re-work. A better understanding of construction progress. Better links with offsite fabrication companies.
Preservation of historical Monuments : Highly accurate records of fragile historic structures. Accurate monitoring of structures
for movement. Ability to share and experience historic sites without travelling (for education etc). Possibility to capture textures (colors) of
scanned objects. Ability to fabricate replacement parts (stone gargoyles for instance) accurately and true to the original.
Facility Management : More accurate understanding of built assets when purchasing real estate. Production of a virtual representation of the
physical building – with data and geometry. Guaranteed ‘as-built’ documentation if validated against scan data. Ability to simulate virtual scenarios ahead of physical changes.
SEQUENCE DIAGRAM :
FUTURE STEPS :
- Finish hardware with the new fabricated PCB.
- Calibrate the action camera with the galvos.
- Create an Etch-A-Sketch Webpage which sends the drawn sketch to the laser projector
- Testing laser scanning instead of ARuco markers (in order to get distance and object orientation).
REFERENCES :
AR Laser Projector is a project of IaaC, Institute for Advanced Architecture of Catalonia developed at Master in Robotics and Advanced Construction (M.R.A.C.) in 2019 by,
Student: Subhash Prajapat, Stefano Meloni, Sebastian Voigt, Luis Pacheco
Faculty: Angel Muñoz
