The Multi-stage Electromagnetic Gun was developed for the 3rd National Electromagnetic Contest organized by the National Virtual Teaching and Research Office of Electromagnetic Field and Wireless Technology Majors. Our team designed a coaxial coil-based electromagnetic launcher, integrating custom hardware control circuits, a two-axis gimbal for precision aiming, and a fully developed software tracking system. Through comprehensive error analysis and multi-level coil triggering logic, we achieved highly accurate projectile shooting, ultimately winning First Prize in the Experimental Track.
$ Hi there, I'm Percy
$ Sometimes I
building fun tools
making videos
sharing knowledge
exploring frontier AI tech
EDUCATION
Xidian University
Computer Science
Feel free to reach out! Whether for collaboration, brainstorming, or just exchanging ideas, I'd love to connect and explore new possibilities together.
Recent Updates NEWS
CONST BRACKRAT = NEW TERMINAL('ACTIVITY')
My Journey TIMELINE
cat ~/experience/timeline.log
Present
— academic | 2023 — Present
NEP Lab Member
@ NEP Lab, Xidian University · Xi'an
Conducting research and development in electronic contests, robot control algorithms, computer vision, and deep learning at NEP Lab.
— developer | 2022 — Present
Independent Full-stack Developer
@ Open Source & Personal Projects · Remote
Building practical tools and modern web applications from scratch.
— creator | 2021 — Present
Bilibili Content Creator
@ Bilibili (BrackRat 波西) · Online
Creating engaging video content covering programming, AI, popular science, and creative experiments.
2027
— education | 2023 — 2027
Undergraduate Student
@ Xidian University · Xi'an
Majoring in Computer Science and Technology with a solid foundation in computer science.
Selected Projects SHOWCASE
const projects = new Portfolio('showcase')
BrackRat@projects:~$ grep -i '...'
2025 1 projects
Robotics | 👤lead
Aug 2025 Multi-stage Electromagnetic Gun ✦
Designed and built a multi-stage coaxial coil electromagnetic gun capable of precision shooting. Won First Prize in the Experimental Track of the 3rd National Electromagnetic Contest.
2024 3 projects
Robotics | 👤lead
Sep 2024 NUEDC Chess Robot (E-Chess) ✦
NUEDC 2024 Problem E: Tic-Tac-Toe. Developed a robot system capable of playing chess with humans.
community | 👤lead
Sep 2024 XDU Half-Radio Amateur Radio Station ✦
Xidian University amateur radio club, inheriting the red communication spirit and exploring frontier wireless technologies.
AI | 👤lead
Jul 2024 AI Script Assistant
National Undergraduate Innovation Training Program project.
Awards & Honors
9 awards spanning categories
2026
Bilibili 50k Followers Milestone (BrackRat)
Bilibili
Mar 2026
other
2025
First Prize - National Undergraduate Electronics Design Contest (Automatic Aiming System)
NUEDC Committee
Sep 2025
competition
Excellent Grade - National Undergraduate Innovation and Entrepreneurship Training Program
Ministry of Education
Jul 2025
honor
Excellent Grade - National Undergraduate Innovation and Entrepreneurship Training Program (AI Script Assistant)
Ministry of Education
Jul 2025
honor
Special Grand Prize - Inter-University League of National Undergraduate Electronics Design Contest
NUEDC Committee
Jun 2025
competition
Second Prize - National Undergraduate Computer Design Contest
Computer Design Contest Committee
Jun 2025
competition
Taobao.com Security Vulnerability Recognition (Low Risk)
Alibaba Security Center
May 2025
other
2024
First Prize - National Undergraduate Electronics Design Contest (E-Chess Robot)
NUEDC Committee
Sep 2024
competition
First Prize - 3rd National Electromagnetic Contest (Experimental Track)
National Virtual Teaching & Research Office of Electromagnetic Field
Aug 2024
competition