Md Shamim Hossain

An autonomous wheeled robot designed for restaurant service environments. Integrates ultrasonic and IR sensors for obstacle avoidance, combined with a pre-mapped navigation system for reliable table-to-table delivery.

Key challenges included reliable obstacle detection in dynamic environments, stable tray carrying at speed, and developing a low-cost localization system without GPS. Solved using sensor fusion and a custom PID-based navigation controller.

Successfully delivered meals with 98% accuracy in test environment. Average delivery time reduced by 35% vs manual service in simulation. Recognized at university project showcase.

A high-performance line-following robot using PID (Proportional-Integral-Derivative) control for precise path tracking. The robot uses an 8-channel IR sensor array to detect lines with sub-millimeter resolution.

Tuning the PID constants for stable and fast response without oscillation was the primary challenge. Implemented auto-tuning algorithm and speed-adaptive control for sharp corners.

Achieved track completion times 22% faster than baseline. Won 2nd place at inter-university robotics competition. Average tracking error under 1.5mm at full speed.

Complete design and fabrication of a desktop 3-axis CNC machine. The mechanical structure was designed in SolidWorks with FEA analysis to minimize deflection. Electronics use GRBL-compatible controller.

Achieving rigidity while keeping cost low required creative use of aluminum extrusions and custom gantry design. Backlash compensation was implemented in firmware.

Positional accuracy of ±0.1mm achieved. Successfully machined aluminum, wood, and PCBs. Machine built at 60% below commercial equivalent cost.

Industrial automation project implementing PLC-based control for a simulated production line with HMI integration, alarm management, and real-time data logging via SCADA.

Simulated 40% reduction in downtime. System handles 12 concurrent process variables with auto-fault recovery. Full SCADA visualization implemented.

ESP32-based environmental monitoring node measuring temperature, humidity, CO2, particulate matter and VOCs. Data streams to Firebase via MQTT, visualized in real-time dashboard.

System uptime of 99.2% over 3-month test period. Alert system triggered with 95% accuracy. Dashboard supports up to 50 concurrent monitoring nodes.

6-degree-of-freedom robotic arm designed for educational and industrial simulation. Mechanical design in SolidWorks, kinematics solver in Python, interfaced with ROS for trajectory planning.

Achieved pick-and-place operations with ±2mm repeatability. Successfully demonstrated object sorting with computer vision (OpenCV) integration. Featured in departmental exhibition.