1.
EUROPEAN ROVER CHALLENGE (2018-2019)
Team Ogrodoot is a research team from RUET (Bangladesh) that mainly focuses on engineering researches and implementations of different mechanisms and projects. I am fortunate to be the Mechanical designer and fabrication member of this project. For my very first project, I was only worried about the manufacturing process. I faced many problems also for that reason I had to change my design many times after all that I was managed to do that. As a mechanical designer, I designed the full body of Mars rover here, which was ranked 25th among participants from 65 countries of the world and 2nd from Bangladesh. However, after finishing the fabrication, I was thrilled, because when someone has to manufacture a thing of their design, it seems like the joy is not found anywhere else. I still remember the working day and night during this time of design and manufacturing to finish the parts one by one. Finally, when the result came, my joy knew no bounds. Some more achievements of this team are:
*Team Ogrodoot achieved the sixth position at the Indian Rover Challenge 2018 held at VIT, India. Besides Mars Rover Project, Team Ogrodoot is affiliated with numerous projects. Team Ogrodoot participated in the Battle-bot section at Techfest 2017 held at IIT, Mumbai.
*Team Ogrodoot was awarded the Runners-up prize at the National Robotic Fest 2017 organized by the Ministry of Information and Technology of Bangladesh.
*The team also achieved the Runners-up position in the line follower segment at the National Robotic Fest 2016 and was the Champion at the Robodroid Championship 2016.
***Please click on the images for full view***
2.
Thesis Project: Design, Construction, and Performance Test of Solar Water Heater Combined with Photovoltaic Pane
Hybrid PV/T water heating system uses solar energy to produce electricity and thermal energy simultaneously. The photovoltaic panel uses solar light energy to produce electricity and the flat plate collector uses solar heat energy to produce hot water. The water first sprays over the top surface of the PV panel and then goes to the collector inlet and being hot gets out from the collector outlet and is stored in the storage tank. The water is supplied at a rate of .56 L/min, 1.56 L/min, 2.56 L/min, and 3.56 L/min, respectively. The highest efficiency of the panel is obtained at a 45⁰ tilt angle. Also, with the increase in mass flow rate the outlet temperature of the collector decreases. The highest thermal efficiency of the collector is 70.6% and the highest hot water from the collector is 84.6℃. Moreover, the experimental results show, for a mass flow rate of 1.56 L/min a maximal total increase of 16.78% (effective 4.19%) in PV panel electrical efficiency is achieved by using the proposed cooling technique in the circumstance of peak solar irradiation. Furthermore, the reduction of panel temperature ranged from an average of 45.08℃ to 34.12℃. Also, the performance of the PV panel is affected by dust. The spray technique is a self-cleaning system that removes the dust from the top surface of the PV panel and the efficiency is significantly increased by 2.53 %. Furthermore, the overall efficiency of this system is 83.3%. However, the mass loss of the system is only due to the evaporation of water, and mass loss due to leakage is negligible because all the possible and visible leakages are sealed properly.
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3.
RFID attendance system
Education is a fundamental part of every modern society worldwide, transforming educational institutions and management and organizational approaches to education. To simplify certain functions, technology has developed several innovative solutions. The pathology, commonly known as EdTech, has influenced the teaching and learning mode. Computer labs were found in the school and the college some years ago. Still, now classrooms are transformed into an advanced digital environments with versatile learning accessories that have entirely changed the way we do education. Even with the doubts, technology has managed to increase the educational sector to its potential. In this way, RFID systems is perhaps one of the most revolutionary technological implementations in education. For many years now, RFID has been inserted into educational environments in airports, hospitals, libraries, and lately.
4.
Hand gesture-controlled robot
A Robot is an electro-mechanical system that is operated by a computer program. Robots can be autonomous or semi-autonomous. An autonomous robot is not controlled by human and acts on its own decision by sensing its environment. Majority of the industrial robots are autonomous as they are required to operate at high speed and with great accuracy. But some applications require semi-autonomous or human controlled robots. Some of the most commonly used control systems are voice recognition, tactile or touch controlled and motion controlled. One of the frequently implemented motion-controlled robots is a Hand Gesture Controlled Robot. In this project, a hand gesture-controlled robot is developed using MPU6050, which is a 3-axis Accelerometer and 3-axis Gyroscope sensor and the controller part is Arduino Nano. Instead of using a remote control with buttons or a joystick, the gestures of the hand are used to control the motion of the robot. The project is based on wireless communication, where the data from the hand gestures is transmitted to the robot over RF link (RF Transmitter – Receiver pair).
***Please click on the images for full view***
5.
Automatic electric hospital bed design
Using wireless sensor network (WSN) in hospital beds, which are known as smart beds, is an appropriate solution to prevent decubitus ulcer and a way to forger the pressures of decubitus ulcer in patients hospitalized for a long time. This condition is associated with pain, infection, and complications such as stress.
More objectives: Provide safety, comfort, and mobility for a broad range of patients with varying conditions and treatment plans).
