Laser Guided Automated Floor Profiling - FloorWalker.
Degree: MS, Engineering and Applied Science: Computer
Engineering, 2017, University of Cincinnati
When pouring new concrete floors, it is the
responsibility of the contractor to verify that the floor upholds a
certain standard of flatness and levelness. This standard is set by
the application of the floor and type of objects which will be on
the floor. The profile of the floor is converted to a series of
numbers which describe the floor known as F-Numbers. The F-Numbers
are acquired through measurements of different elevations
throughout the floor. Current methods of gathering these
measurements are very expensive, time consuming and taxing on the
operator of the devices. They require the user to walk around a
floor with the measuring device that records the data. There is
need to automate this process and reduce the cost.As a senior
design project, an Automated Floor Profiling device was created
which was capable of navigation and recording of the necessary
data. A script was written to do further analysis on this data and
output visual information in form of a GUI showing the profile of
certain sections of the floor as well as a rated F-Number. One main
flaw with this prototype was that it was incapable of driving in a
straight line. Due to this limitation, the resulting data was
deemed inaccurate.The new system, now a Laser Guided Automated
Floor Profiler, is built upon this existing senior design project
to rectify the problem of driving straight in order to increase the
accuracy of the results. It is a system of lasers setup around a
test area and a FloorWalker that follows these lasers. The
FloorWalker is equipped with a linear photodiode array sensor on
the front of the device. During straight line navigation, a laser
will impact this sensor. As the FloorWalker deviates left and right
of the reference line, the laser impacts the linear array at a
different spot. This deviation is seen and an accurate course
correction can be made. Not only do the lasers guide the
FloorWalker in a straight line, but they also notify it when to
stop and turn around. This aids the FloorWalker in navigation of a
whole test area.Tests show that the straight line navigation is
significantly improved resulting in a much more accurate direction
of travel and a much smaller standard deviation. In this system of
lasers, the FloorWalker utilizes StringWalker laser information
about 70% of the time for its course correction, and the other 30%
of the time utilizes information from the onboard MPU 9150 sensor.
The new FloorWalker implementation has a battery life of about 3.6
hours, which can travel about 5,400 ft on one battery charge. This
system implementation costs significantly less than current methods
Advisors/Committee Members: Beyette, Fred (Committee Chair).
Subjects/Keywords: Computer Engineering; Flatness; Levelness; Floor Profile; FloorWalker
to Zotero / EndNote / Reference
APA (6th Edition):
Whaley, C. (2017). Laser Guided Automated Floor Profiling - FloorWalker. (Masters Thesis). University of Cincinnati. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=ucin1491558782298737
Chicago Manual of Style (16th Edition):
Whaley, Chad. “Laser Guided Automated Floor Profiling - FloorWalker.” 2017. Masters Thesis, University of Cincinnati. Accessed March 19, 2018.
MLA Handbook (7th Edition):
Whaley, Chad. “Laser Guided Automated Floor Profiling - FloorWalker.” 2017. Web. 19 Mar 2018.
Whaley C. Laser Guided Automated Floor Profiling - FloorWalker. [Internet] [Masters thesis]. University of Cincinnati; 2017. [cited 2018 Mar 19].
Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1491558782298737.
Council of Science Editors:
Whaley C. Laser Guided Automated Floor Profiling - FloorWalker. [Masters Thesis]. University of Cincinnati; 2017. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1491558782298737