CHIRONJEET DAS JOY
A Robotics Enthusiast with a Deep Passion for Crafting Innovative, Autonomous Robotic Solutions that Redefine the Possibilities of Automation and Technology. I am a graduated student working as a research assistant in LaSSET at the BRAC University, advised by Abdulla Hil Kafi.
Research Interests
My research centers on Dexterous Robotic Manipulation, Multi-Agent Robot, Computer Vision and Sensory Infusion, with the goal of advancing robotic precision and adaptability. Leveraging my expertise in machine learning, deep learning, and computer vision, along with extensive experience in various research labs, I am well-positioned to drive innovation and contribute to cutting-edge developments in modern robotics.
Thesis/FYDP

This project involves developing a fully autonomous, custom-built 7-degree-of-freedom robotic arm for pharmaceutical environments, designed and fabricated entirely on my own. It is intended for accurate shelving and retrieval of medication boxes using stereo vision and dexterous manipulation techniques, with a focus on affordability and ease of deployment. (Project Lead)
On-Going Work

This project addresses challenges in stabilizing drones under complex aerodynamic conditions during rescue operations. It uses an IMU on the flight controller to determine the drone's position and is exploring a Neural Network approach for improved stabilization. A custom-built controlled environment with infrared tracking cameras is being created to simulate complex scenarios and compare the drone’s 3D position with IMU data. Additionally, a unique drone tracking system, designed and built from scratch without off-the-shelf products, is being developed for custom data collection. (Project Lead)

Designed and developed a custom flight controller for a hybrid rocket engine using the Teensy 4.1 microcontroller, programming in C/C++ to integrate accelerometers, gyroscopes, and pressure sensors for precise real-time data acquisition. By implementing tailored PID control algorithms, I ensured stable flight dynamics, achieving a 95% data accuracy rate during extensive simulated tests. The system was integrated with a telemetry subsystem for live ground station monitoring, showcasing my expertise in embedded systems, sensor fusion, and algorithm design. Collaborating with a multidisciplinary rocketry team, this project not only advanced our student-led aerospace initiative but also deepened my passion for solving complex engineering challenges in high-stakes environments.

I designed the SwarmSync Controller Board, a key component for my project on Modular Robotic Swarm Assembly and Power-Shared Connectivity. This custom circuit integrates a Wi-Fi module, high-torque servo control, and dual power-sharing connectors to enable seamless communication, precise movement, and energy distribution among robotic modules. With onboard sensors, microcontrollers, and a robust docking mechanism, this board empowers autonomous swarm behavior for dynamic structural formations. It’s a stepping stone toward scalable, adaptive systems with potential applications in automated construction, disaster response, and space exploration. Check out the project proposal for more details on this exciting venture!
Publications

Chironjeet Das Joy, Abdulla Hil Kafi, Raihana Shams Islam Antara,
IAC, 2025 (Submitted)
This paper presents a neural network-based stabilization algorithm for hexa-copters in Mars-like wind conditions, addressing the limitations of PID controllers that struggle with dynamic winds, causing energy inefficiency. Using a supervised learning approach, the neural network adjusts motor thrust and rotor positions to enhance stability. Simulations with Dryden and Von Kármán turbulence models generate realistic Martian wind data, integrated into a Gazebo-ROS2 environment. Performance is evaluated on positional drift, tilt error, and power consumption. Results show that NN-based controllers improve stability, reduce energy use, and offer better performance in gusty winds compared to PID controllers, with potential for future Mars exploration.

Tasfin Mahmud, Tayab Uddin Wara, Chironjeet Das Joy,
Heliyon, (Under Review)
This study examines factors contributing to malnutrition in under-five children using data from the MICS-2019 survey, employing Decision Tree, Random Forest, Support Vector Machine, and Multi-layer Perceptron (MLP) models. Random Forest and MLP showed excellent performance, with accuracies of 98.55% and 98.69%, respectively. Pearson correlation analysis revealed key factors like Weight for Age Z Score (WAZ2), Weight for Height Z Score (WHZ2), and breastfeeding status as significant contributors to malnutrition. The findings provide valuable insights into the classification and prediction of malnutrition stages.

Abdulla Hil Kafi, Chironjeet Das Joy, Prapty Majumder Golpa, Raihana Shams Islam Antara,
IAC, 2023
Engineered and deployed a sophisticated time series data acquisition system for the Satellite Ground Sensory Terminal Project, leveraging an array of sensory inputs to facilitate remote monitoring of agricultural fields in rural locations through the KITSUNE Satellite. This system was meticulously designed to be compact and readily deployable, playing a pivotal role in the conceptualization and successful implementation of the project. (Lead system developer)

Chironjeet Das Joy, Raihana Shams Islam Antara, Abdulla Hil Kafi,
IAC, 2023
Global inflation rose from 4.7% in 2021 to 8.8% in 2022, driven by rising fuel prices and supply chain disruptions. Electronics manufacturers face material shortages and high costs, with no immediate relief despite central banks' efforts.
Selected Grad Course and Other Projects

EEE383 Electronic System Design with Abdulla Hil Kafi,
Partnered with five graduate students on a NANO Satellite project, focusing on data collection and transmission from multiple ground stations to a centralized control system. I was responsible for designing and implementing both the payload and communication subsystems.

(Independent project)
Named after the Fourth Hokage's teleportation technique in "Naruto," the Flying Raijin is a custom-built 5-inch FPV drone engineered for exceptional speed, accelerating from 0 to 150 km/h in just 2 seconds, as verified by the onboard GPS module. The drone utilizes an STM32 F411 MCU and operates on a 16V system. It is equipped with a high-resolution camera, a low-latency video transmitter, and multiple onboard sensors, all of which enhance the system's overall performance and capabilities.