Instructions: Point and click on the words that present a negative evaluation of previous work. The feedback is shown at the bottom.

However, this system requires many components, thus making it expensive and laborious to install and maintain. Moreover, its data is discontinuous due to the limited amount of switches in the shaft.

Adapted from Mikko Peltola, “Radar applications in elevator speed and location measurement,” M.Sc. thesis, School of Electrical Engineering, Aalto Univ., Espoo, Finland, 2016. This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License