Ko Lab

Background and Publications

Education

  • PhD, Electrical Engineering, University of Saskatchewan, 2024-present. Deep learning for surface electromyography and natural language processing; transformer and recurrent architectures. Supervised by Prof. Seok-Bum Ko.
  • MSc, Smart Systems (Computer Engineering), Universidad de Salamanca, Spain, 2023. Robotics, artificial intelligence and data mining.
  • BSc, Mechatronics Engineering, Universidad de las Fuerzas Armadas ESPE, Ecuador, 2021. Mechanical design, electronics and software development.

Publications

UV-SAFE: automated UV disinfection of market products

A. Erazo, L. Allauca, G. Guerra, S.-B. Ko. IEEE Seventh Ecuador Technical Chapters Meeting (ETCM), 2023.

  • An automated device that disinfects market products with ultraviolet light
  • Experiments on regular and irregular objects fixed the optimal placement of the UV lamps inside the chamber
  • Ten seconds per product, reaching a log-reduction dose
Labelled CAD drawing of the UV-SAFE machine showing the disinfection chamber, UV lamps and conveyor belt.

Multi-robot system for collaborative work with trajectory planning over IoT

G. Guerra, L. Allauca, L. Escobar, X. Sanchez-Sanchez, S. Puma-Araujo, R. Ramirez-Mendoza. Advances in Automation and Robotics Research, Springer, 2021.

  • Omnidirectional robots on Mecanum wheels, built in modular layers for sensors, power and control
  • A central broker coordinates the robots and corrects their actions across an IoT architecture
  • Overhead computer vision detects and classifies the workspace, feeding trajectory correction
  • Developed entirely with open-access software, following the VDI 2206 mechatronic design standard
Diagram of robots and obstacles on a floor with an overhead camera feeding trajectory correction.

Multi-robot platform with cyber-physical features for education

L. Escobar, C. Moyano, G. Aguirre, G. Guerra, L. Allauca, D. Loza. IEEE ANDESCON, 2020.

  • A flexible, scalable and easily replicable omnidirectional mobile robot
  • Several robots form an open-source platform managed as a cyber-physical system over MQTT
  • ROS on a Raspberry Pi controls each robot; an Arduino handles sensors and actuators
  • Built to teach the principles of cyber-physical systems
Exploded view of the omnidirectional robot showing its layered structure and Mecanum wheels.

6-DOF anthropomorphic robot for remote robotics teaching

G. Guerra et al. Advances in Science, Technology and Engineering Systems Journal, 2021.

Coating 3D-printed gyroid structures with dragon's blood extract

L. Allauca, G. Guerra, H. Lara. IEEE Fourth Ecuador Technical Chapters Meeting (ETCM), 2019.

  • Two coating methods compared on 3D-printed gyroid lattices: direct perfusion and dip coating
  • Coated with the Amazonian herbal remedy sangre de drago (dragon's blood)
  • Image analysis found a non-linear relationship between porosity and coated area, peaking at 70% porosity for perfusion and 90% for dip coating
  • A proof of concept aimed at tissue regeneration and defect repair
Render of a 3D-printed gyroid lattice structure.

Full list on Google Scholar