We are witnessing a new dawn in the realm of electronic engineering and drone technology, a journey that's as ambitious as it is transformative. From the esteemed classrooms of XiDian University to the pioneering frontiers of cutting-edge research labs, this path has been paved with relentless innovation, academic rigor, and a bold vision for the future.
Leading this charge, key developments in unmanned aerial vehicles and advanced control systems have redrawn the boundaries of what's possible. In the intricate fields of machine vision and artificial intelligence, deep explorations have been undertaken, navigating complex algorithms and groundbreaking software development.
This journey, fueled by a perfect amalgamation of robust theoretical knowledge and practical prowess, has been instrumental in unraveling some of the most complex challenges in electronic engineering. Turning once-elusive dreams into tangible, groundbreaking realities, it represents a bridge between the realms of theoretical understanding and real-world application.
As this path unfolds, it's not just a narrative of personal growth but a significant stride forward in drone functionalities and control dynamics, shaping the future of technological advancement and transformative applications.
This story of innovation, determination, and visionary foresight culminates in a name that symbolizes the essence of this revolutionary journey: I am Phillweston.
2022年,本科即将毕业的我,将毕业课题选定为将视觉与控制融合的方向,与西安一家公司合作完成了校企联合项目,名为“基于无人机的自主航点飞行与双光热成像目标监测算法研究”,融合了我对于前任无人值守项目的理解和对于视觉目标检测算法的研究。在项目的设计和开展中,我使用DJI御系列行业进阶版飞行器,基于DJI Mobile SDK编写了MAVLink航点协议转换,地面特征视觉引导降落(PnP算法),以及基于KCF算法的目标追踪和YoloV5的热成像目标检测与分类。最终在毕业设计答辩中获得较为优秀的荣誉。
In 2022, I graduated from XiDian University with the major subject of electrical engineering.
Having graduated from the Electronic Information and Engineering program at XiDian University, a renowned institution in the fields of electronic information, communications, and computer science, I have studied a wide array of courses focused on electronics and information, such as Advanced Mathematics, Linear Algebra, Probability Theory, C Programming, Data Structures, Digital Circuits, Analog Circuits, Microcomputer Principles, Signals and Systems, Automatic Control Principles, Digital Image Processing, Signal Integrity Analysis, Electromagnetic Field Theory, Microwaves, Communication Principles, FPGA Logic Circuit Design, among others. During my studies, I actively participated in laboratory experiments related to my courses, and through my own efforts and recommendations from my professors, I joined the E-Experimental Building's Electronic and Electrical Engineering Laboratory and the Space Physics Research Laboratory, embarking on my journey of experiments and academic projects.
In 2018, when I first started university, harboring dreams of future aircraft design, I joined the RoboMaster Robot Team and the Xidian University Aviation Association, initially setting my competition focus on machine vision and artificial intelligence. In early 2019, I proposed the "Qian Tian Yu Claw - Unmanned Aerial Vehicle (UAV) Line Inspection System", which innovatively integrated the 'eye in the sky' of drones with a solid backing landing platform. It combined the application of 5G Internet of Things with multi-drone aerial networking and communication with the landing platform. Using Huawei Cloud Hilens for cloud training and local deployment of the line inspection system, it ultimately transmitted data through the landing platform's spread spectrum communication link to the drone, which used realsense to acquire downward depth images and merged them with onboard IMU data for precise terrain matching and landing. As the project progressed, I suggested its application in power and river inspection fields, participating in the 2019 Internet+ Innovation and Entrepreneurship Competition, Beidou Cup National Contest, and other national innovation directions. However, due to limited funding for further development and substantial ongoing investment costs, the project eventually only developed into an initial prototype and was later showcased at Xidian University's Innovation and Entrepreneurship Exhibition. In fact, in the second half of 2022, DJI Innovations launched an unattended airport and the compatible Matrice M30T series models, which were similar to our team's previous direction. This product was a great success after its launch, ultimately leading DJI to further occupy a share of the industrial drone market.
In 2020, building on the previous year's Qian Tian Yu Claw project, I proposed the "Yi Chi Co-Defense - Integrated Air-Ground Security System," incorporating technologies like "Multi-Drone Panoramic Image Dynamic Feature Stitching" and "Coordinated Formation Control." To solve these technical challenges, I consulted extensive professional literature, including Visual SLAM, Inertial Navigation Principles, Optimization Estimation Algorithms, Matrix Analysis, Statistical Studying Methods, and more. I discussed the technical feasibility with Professor Sun Wei's ICRA team graduate students, ultimately overcoming these challenges and publishing two invention patents. I also participated in the 2020 Internet+ Innovation and Entrepreneurship Competition and the ICRA-RoboMaster AI Challenge (an international AI competition co-hosted by DJI and IEEE).
Following 2020, the pandemic led to many of our courses moving online, giving me more time to study extracurricular knowledge at home or at school. Considering the strong theoretical nature of the school's curriculum, after joining the aforementioned laboratories, I spent my extracurricular time learning topics including Computer System and Composition Principles, C++ and Java Programming, 14 Lectures on SLAM, State Estimation in Robotics, Optimization Theory, Inertial Navigation Systems, Modern Control Theory, Reinforcement Learning and Policy Optimization, Numerical Optimization in Robotics, Multi-View Geometry in Computer Vision, and more, setting my future direction in control or vision algorithm research. During my time in the laboratories, I participated in algorithm and software-related competitions to test the effects of my self-study, winning several national awards. After a period of participating in competitions, Professors Sun Wei from the Space Institute and Wang Xinhuai from the Electronic Engineering Laboratory praised my self-learning and project capabilities, gradually guiding me to participate in their core projects, including microwave radar drone projects and six-rotor air-ground cooperative drone development projects. Later, I collaborated with Professor Hou from Xidian University's Intelligence Institute to promote our 2020 Internet+ Innovation and Entrepreneurship Competition air-ground cooperative project and drone products, ultimately receiving unanimous praise from Xidian University Vice President Shi Guangming.
Ardupilot, the world's largest open-source flight control project, was originally open-sourced by the control team of ETH Zurich and has since become a benchmark in the open-source flight control community. Because of my exploration of flight formation control in the previous year's "Yi Chi Co-Defense" project, I gradually realized the need for an anti-disturbance algorithm to replace the traditional PID algorithm. After learning about disturbance model observation and compensation in modern control theory, I decided to use a second-order Active Disturbance Rejection Control (ADRC) algorithm to replace the traditional PID algorithm for feedback control from the inner to the outer loop of rotorcraft. I then coded this idea in C++ and integrated it into the Ardupilot project, completing simulation tests based on ROS Gazebo and real flight tests using quadrotors and VTOL 4+1 vertical takeoff and landing aircraft. Ultimately, I committed the code to one of Ardupilot's development branches. Through my development and learning in this open-source project, I further solidified my software development foundation, deepened my understanding of disturbance and observation models, and learned more about the underlying architecture and design logic of open-source flight control, enhancing my ability to independently maintain complex frameworks and operations.
In April 2021, I participated in an internship at Zhejiang University's fast-lab, an opportunity I obtained through a referral from Professor Sun. The main focus of the internship was learning the application of the VINS-Fusion algorithm in indoor positioning of drones and studying the ego-planner algorithm to replace Hybrid A* for the task of autonomous indoor drone path planning. After the internship, I applied what I learned and mastered to the 2021 Engineering Training UAV Autonomous Flight Track.
In 2022, as an undergraduate nearing graduation, I chose a project that integrated vision and control for my final thesis. This project was a collaborative effort between a company in Xi'an and my university, titled 'Research on Autonomous Waypoint Flight and Dual Optical-Thermal Imaging Target Monitoring Algorithms Based on Drones. It combined my understanding of previous unattended projects with my research on visual target detection algorithms. In the design and execution of the project, I utilized the DJI Mavic series industry advanced version drone, and based on the DJI Mobile SDK, I wrote the MAVLink waypoint protocol conversion, ground feature visual guidance landing (PnP algorithm), as well as target tracking based on the KCF algorithm and thermal imaging target detection and classification using YoloV5. Ultimately, I received a commendable honor in my graduation project defense.
In early 2023, I joined Chengdu Zongheng Automation. Chengdu Zongheng Automation is one of the few companies in the country specializing in vertical takeoff and landing drones, with business segments including flight control and guidance products, UAV whole machines, and modules. The leadership was satisfied with my open-source flight control system design and maintenance capabilities, thus assigning me to control software and system development. During my time at the company, I participated in several research institutes and international projects (including simulation design at Mianyang Aerodynamics Research Institute, Harbin Institute of Technology's one-station-four-machine formation system, Oman national customer). Especially during the Oman national customer training, I excellently completed a month-long English training session (main scope: flight control product architecture, onboard flight software and flight SDK development platform, flight control simulator, etc.), receiving unanimous praise from the customer.