Alexander Li

This is a student engineering team that designs and builds lunar/mars rovers to bring to the international University Rover Challenge (achieved 2nd place) and Australian Rover Challenge (achieved 1st place).

• Coordinated an electrical team to provide power, low level control, computation and hardware communication for all rover systems, managing projects with Gantt charts
• Designed overall electrical architecture for the robotic arm, liaising with the arm team for requirements and specifications
• Designed custom BLDC motor driver implementing Field Oriented Control
• Designed RS485 to CAN translator and voltage regulator for the robotic arm
• Coded inverse kinematics for the Spherical-Parallel Manipulator for the robotic arm, in ROS2 C++
• Created lectures and contributed to documentation for knowledge transfer.

• Created Python code base to train and evaluate performance of reinforcement learning algorithms.
• Implemented probabilistic temporal ranking and Fourier feature augmentation to optimize maze traversal, resulting in 40% training speed boost.

• Coded the Hybrid A* algorithm in ROS C++ in a linux environment for the path planning of an autonomous car.
• Innovated on the algorithm by designing a radially decaying potential field around obstacles, making paths safer and smoother. The pre-processing reduced planning time from 10s of seconds to 300 milliseconds.

• Treated various injuries at major events and venues, looked after and talked to patients
• Communicated with first aid teams under high stake situations