This video covers a bachelor project in Mechantronics at University of Agder. The students attending were Eirik Fuskeland, Karoline Frisvoll and myself.
Hey brother, I was fortunate enough to see ur video. Couldn’t believe that u posted this 5 years back. btw could u help me with the basic structure of it as it is my University project
Hi. Apologies for the late reply. We bought an old, used, belt-driven jack trolley and modified it to get space for all the equipment onboard. Luckily, it came with belts which we feared was the most difficult component to find. The motors we got from an electric-powered wheelchair, and bought a linear actuator from a local vendor (Linak). The electronics used was quite basic. A microcontroller to run Labview, motor controller, IMU (for controlling the tilt function for the seat) and two 12-volt car batteries in series to achieve 24V supply.
Hi. Sorry for the late reply. Basically, we started with odometry to estimate travelled distance. However, as you probably know, belt-driven vehicles tend to slip, which introduces a lot of error in the calculation. So our idea was to try to correct the estimation error with something called structured light. I can immediately admit that it didn't work very well. It is based on a camera that percept light from a laser grid and infers distance by analysing angular change. Hope this video was able to help you to progress your own project.
Hi. Sorry for the late reply. We didn't really make a lot of proper documentation on this project since it was executed fairly ad-hoc. The little documentation we have are only in written in norwegian (part of our research report). Still, I hope this video was enough to give some inspiration to progress your project ahead.
Hi. Apologies for the late reply. This research project did not have very strict requirements for documentation, and the whole project was execute in an ad-hoc manner. Therefore, the little documentation we have is only in norwegian (part of our research report). Still, I hope this video was enough to give some inspiration to tackle your project.
Sorry for the late reply. We were lucky to find a used, belt-driven jack trolley on the used market here in Norway. It was delivered with belts and was pretty sturdy as a main frame. Added a lot of weight as well, which was important for good traction.
Hi. Thanks for the comment and apologies for the late reply. We salvages the two motors from an electric-driven wheelchair. I cannot recall any specifics about of them, but they were driven by a motor controllen which ran on 24 V. The motors caused a lot of electromagnetic noise which threw off some of our onboard sensors, like the IMU which tilted the chair.
Hi. I'm not certain of what you're asking here. If you're still interested after these three years (sorry about that btw), I can try to provide some info.
Comfort wasn't our first priority, but still an important factor for the end product. It was fun to ride upwards, and quite daunting downstairs. Of course, we had to use safety straps to anchor the robot and test it in stairs with hand railings. Got an image here: drive.google.com/file/d/1efoU1eJ89TpmfCjubIUGnTOcUEmjrsOy/view?usp=drive_link
Hey brother, I was fortunate enough to see ur video. Couldn’t believe that u posted this 5 years back. btw could u help me with the basic structure of it as it is my University project
Hey brother, I was fortunate enough to see ur video. Couldn’t believe that u posted this 5 years back. btw could u help me with the basic structure of it as it is my University project
