Research Works

Ongoing Research

 

Final Year Project & Thesis Main Supervisor and External of both Graduate and Undergraduate Engineering Program.

Graduate (MSc. in EEE and MEng. in EEE) Level:

Main Supervisor of 1 Project & Thesis group.

Project Name:

Design and Implementation of an Unmanned ground vehicle (UGV) surveillance robot.

Undergraduate (BSc. in EEE) Level:

Main Supervisor of 4 Project & Thesis groups. External Supervisor of 4 Project & Thesis groups.

Project Names:

Design and Implementation of an Underwater Surveillance Robot with robotic arm

Design and Implementation of a Wireless controlled Limb based Robotic Vehicle

Current Research students:

Research Interest

  • Energy Efficient Digital ASIC Implementation
  • Low Complexity Algorithm Implementation in HDL
  • FPGA Application in Wireless Communication
  • Microcontroller based design
  • Humanoid and Robotic vehicle design
  • Antenna Design
  • Wirelessly controlled Humanoid Robot which can move automatically, talkback, detect object, pickup object with face recognition system and own security system.

    Wirelessly controlled Humanoid Robot which can move automatically, talkback, detect object, pickup object with face recognition system and own security system.

    Undergraduate Thesis & Project

    This research project proposes to build a Humanoid Robot which can move automatically, talkback, detect object, pickup object. Also have face recognition system, its own security system and can control manually from a long distance using a computer. It can control pre-defined electronics device with help of Wi-Fi communication. We can use it for the purpose of security, tuitions, personal assistant, risky work which human can’t do & also for research purpose. It will also help disabled people and they can use it as their personal assistant. Disabled people can command it to bring object to them from a short distance and this robot can help blind people to recognize known faces & objects. Humanoid robot will help us to do our job easier. In the hardware part we mainly used microcomputer & microcontroller. In the coding part we used Python, C++.

  • Designing a Low Power Consuming Bulk-Driven CMOS Buffer Circuit Using 180 nm Process

    Designing a Low Power Consuming Bulk-Driven CMOS Buffer Circuit Using 180 nm Process

    Undergraduate Thesis & Project

    Now a day’s power consumption is a very important factor. Low power CMOS design has been one of the most active research areas in the past several decades and will continue its dominance in the foreseeable future. This thesis presents a collection of new novel techniques using the bulk-driven approach used in CMOS device, which can lead to performance enhancement in the field of CMOS analogue amplifier design with very low supply voltage constraints. Several types of circuits like different pair, current mirror, flipped voltage pair and quasi-floating gate (QFG) has been designed and simulated to overcome the traditional drawbacks and later used to design a CMOS buffer circuit. For the design 180nm technology has been used and the circuits were simulated using both HSPICE and Cadence Virtuoso.

  • Design and Implementation of a Wirelessly Controlled Stair Climbing Wheelchair

    Design and Implementation of a Wirelessly Controlled Stair Climbing Wheelchair

    Undergraduate Thesis & Project

    First wheelchair model evolved long back in 18th century, but rapid development in this field initiated since mid of 20th century. Since then, many varieties of models had been designed, extending into broad range of products. This project involves the design of an ergonomically designed voice controlled electric wheelchair for domestic and commercial use. Stair climbing functionality is embedded in the design through its structure and mechanism. The product mainly consists of 3 modules viz. seat, links and frame. Anthropometric measures are considered in the dimensioning of seat. The frame is designed and developed through the equations generated from the statistical data. Focus is laid on different parameters such as form, functionality, technology and architecture of the product. Necessary simulations of the product are generated in virtual environment of CAD software. The physical and focused prototype indicating the structure and functionality is developed using Aluminum material. The main focus of this project is studying, designing and implementation of avoice controlled electric chair for disabled persons with the ability to rise on stairs with automatic controlling. The chair can be controlled to move in all directions and move up the stairs with different degrees. The chair works with DC voltage source (Battery) and can be recharged to work for long time. The design suggested has suitable size to be used in streets, hospitals and home.

  • Prototyping a cost effective Humanoid K.I.S.H.O.R (Kinetic and Internally Synchronized Humanoid Operational Robot)

    Prototyping a cost effective Humanoid K.I.S.H.O.R (Kinetic and Internally Synchronized Humanoid Operational Robot)

    Undergraduate Thesis & Project

    There has been lot of research going on humanoid walking model and operational model nowadays. To make life easy and simple it is necessary to develop a consistent humanoid robot which can interact and understand the dynamic environment around us and help us in our day to day activity. Also in hazardous environment it is necessary to replace humanoids with humans and at the same time get the sophisticated outputs as a human would do. The research is going on but there are a lot difficulties in designing a well balanced humanoid. Additionally the cost of building is too high. To address this issue a new design methodology is applied in this thesis paper to reduce the fabrication costing of biped humanoid robots. For this method a simple hardware logic based system is applied to a robot to mimic bipedal walking. A number of DC motors have been attached to a wooden structure and all the motors were interconnected along with hardware to get a human like mobility. The Clockwise and Counterclockwise motions of the motors were done by mechanical on/off switches and with a snap action arrangement. The synchronizations were done by keeping one motor direction as a reference and others rotating according to the stepping angle of the robot hence the name Kinetic and Internally Synchronized Humanoid Operation Robot or KISHOR name has been adopted as a name of the humanoid.

  • Design & Implementation of Solar Powered Water Vehicle for Shipwreck Detection

    Design & Implementation of Solar Powered Water Vehicle for Shipwreck Detection

    Undergraduate Thesis & Project

    Launch accidents are common phenomenon in a riverine country like Bangladesh. In Bangladesh there is no such scientific technique used to detect the exact location of shipwreck. As a result, almost every year the ineffective and time consuming rummage operations of shipwrecks takes thousands of innocent lives. To solve the situation, a remotely operated wirelessly controlled water vehicle need to be implemented which will bring novelty in shipwreck detection task. Thus the concept of a solar powered remotely operated water vehicle is chosen to minimize the losses of human lives and valuable properties during the water vehicle accidents in Bangladesh. This paper will represent the idea of using sonar technology to design and implement a solar powered unmanned water vehicle including the future opportunities, research studies, vehicle mechanism, applied technologies, methods of data collections and transferring, drawbacks etc.

  • An Analysis on the performance of thin film Metal-Insulator-Metal diode on various regions in the electromagnetic spectrum

    An Analysis on the performance of thin film Metal-Insulator-Metal diode on various regions in the electromagnetic spectrum

    Undergraduate Thesis & Project

    Characteristics of MIM tunnel diodes which are used to rectify high frequency ac signal into dc have been investigated in three different regions of the electromagnetic spectrum. In this paper, the performance of the MIM diodes has been analyzed to give a comparative result in three ranges of frequencies: visible, infra-red and millimeter wave. The performance of the MIM diode coupled with an antenna has also been investigated. The physical parameters of the diode namely the two metals, insulators and area have been studied for various diodes working in different frequencies. This is done and presented in a table which lists various features of the MIM diodes. For each spectrum the diode with maximum utilizing characteristics is chosen and its performance is then simulated using MATLAB. The simulations result shows the effect of the work function difference on the performance of MIM diode. The relationship of the work function difference to probability of the tunneling electrons is a key to fabricate efficient MIM tunnel diodes with the perfect combination of metals. The change of current with the biasing voltage is also investigated at different powers. These findings give an insight on how the performance of a MIM diode can be optimized by selecting appropriate physical parameters during its fabrication.

  • Design and Implementation of a Wall Climbing Robot

    Design and Implementation of a Wall Climbing Robot

    Undergraduate Thesis & Project

    It has been a long time that scientists are trying to move vehicles both in the vertical and horizontal plane simultaneously by the same machine. But working against gravity made it difficult to roll the wheel in a surface that is very steeply inclined to the ground plane. This project work deals with the design and implementation of a wirelessly controlled motor vehicle with the ability to move in both vertical and horizontal plane. Aerodynamic techniques has been used to hold the vehicle in any inclined vertical plane. The project work consists of both electrical and mechanical portions. The mechanical portion has been designed using Solid works and 3D studio MAX while the electrical parts has been designed and simulated using Proteus VSM tool.

  • Design and Performance Analysis of a Rectangular Microstrip Patch Antenna (RMPA) for 5.2 GHz WLAN Application using CST Microwave Studio

    Design and Performance Analysis of a Rectangular Microstrip Patch Antenna (RMPA) for 5.2 GHz WLAN Application using CST Microwave Studio

    Graduate Thesis & Project

    In this work, the performance of 5.2 GHz microstrip patch antenna is designed and analyzed by using microstrip line feeding technique. The designs have been successfully simulated using CST Microwave Studio software. In microstrip line feed antenna for WLAN application, the return loss, bandwidth, gain, antenna impedance and the VSWR are calculated properly. The 5.2 GHz rectangular microstrip patch antenna is designed and simulated and a good bandwidth (820MHz) found by using microstrip feed line.

    The single frequency rectangular patch antenna has been designed for the frequency 5.2 GHz using microstrip line feeding technique. The designs have been successfully simulated using CST Microwave Studio software. In microstrip line feed antenna for WLAN application, the return loss is -11dB, bandwidth is 820 MHz, the antenna impedance is 50.89 ohm and the VSWR ratio is 1:1.7713073 and the maximum achievable gain is 3.61 dB.

  • Implementation of a Two Layer Home/Office Security system which consists of a RFID and Finger Print Sensors

    Implementation of a Two Layer Home/Office Security system which consists of a RFID and Finger Print Sensors

    Graduate Thesis & Project

    The main aim of this project is to develop a two layer, highly restricted security system based on both RFID and fingerprint scanning. The owner of the home/office will enter by the finger print so that he/she will have no need to carry the ID card. The system will show which card have punched in which number and the punching time. The RFID tag gives the office to prevent the entry of other persons in the room by controlling radio frequency controlled unique ID whenever it reads the card information. This ID information is send to the micro-controller to check the card to take a security action. If the card ID matches with the original information, it allows entering into the room, if not gives the buzzer as an indication of wrong person tried to enter the system. For the finger print identification whenever the finger print matched with the original information the system allows to enter the room and the monitor will show the card punching information if the owner want. In an addition, the gate will be open and closed and the power supply of the room will be on/off by using RFID.

  • Design and Implementation of a Wall Climbing Robot using aerodynamic principle.

    Design and Implementation of a Wall Climbing Robot using aerodynamic principle.

    Undergraduate Thesis & Project

    The urge to have controlled mobility both in vertical and horizontal plane has been tremendous. Wall-surfing robot is a robotic vehicle that addresses the issue and can move both in vertical and horizontal plane. There are many techniques of constructing Wall-surfers but for the project work aerodynamic mode of operation has been used. According to the aerodynamic principle, suction motors are used that creates a heavy force opposite to the wall surface and sticks to the wall. Then the robot can move upon the surface or climb up against gravitational force. Lot of research have been conducted on wall surfers but none were successful in developing a unique wall surfer that can move on any surface like metal, glass, wood etc. This thesis is on designing a wireless controlled wall-surfing robot with the ability to move on any surface.

  • Design and performance analysis of 5.5 GHz circular microstrip patch antenna

    Design and performance analysis of 5.5 GHz circular microstrip patch antenna

    Graduate Thesis & Project

    The purpose of this work was to design circular microstrip antenna at 5.5 GHz dedicated short range communication (DSRC) band. The frequency bands includes High Performance Local Area Network type 2 (HIPERLAN/2) which use the frequency bands 5.150 GHz–5.350 GHz and 5.470 GHz–5.725 GHz respectively with omni-directional antennas. HIPERLAN/2 has a very high transmission rate up to 54 Mbit/s.

    The modern wireless communication systems require the antennas for different systems and standards with characteristics like compact, broadband, multiple resonant frequencies and moderate gain. Because of many attractive features, microstrip patch antennas have received considerable attention for wireless communication applications.

    Initially extensive literature study at dedicated short-range communication (DSRC) band was done for the selection of antenna, feasible for my interest band which can meet the specification. Later on the selected antenna were designed in CST using three different substrate and simulated them using transient solver. The dielectric substrates used are FR4, Arlon Di 522 and Teflon. Different dielectric constant of these dielectric substrates were used for design antenna.

  • Design and Performance Analysis of Nano Microstrip Rectangular Patch Antenna at 0.25 THz.

    Design and Performance Analysis of Nano Microstrip Rectangular Patch Antenna at 0.25 THz.

    Graduate Thesis & Project

    This thesis work deals with the design of nano Microstrip rectangular patch antenna at 0.25 THz or 250 GHz. To achieve the future demand of high data rates and high gain with better efficiency, four nano Microstrip patch antenna were designed with different dielectric substrates gold, copper, nickel and silver. The operating or resonance frequency selected for all antennas was 0.25 THz or 250 GHz. The main reason behind designing the antenna at 250 GHz is that the frequency range is completely free. The rectangular shape of the patch was selected because of the simplicity of dimension calculation while other shapes like square, triangular etc. have complex calculation. The transmission line model was taken for the analytical purpose. It is the simplest model of all other models. The values of patch width and length were calculated. The height of the antenna was taken too small for better performance. To operate the antennas at desired 250 GHz some dimensions were varied and better simulated results were observed.

  • Wireless Sensor Tree Network Monitoring and Controlling System through Web Server

    Wireless Sensor Tree Network Monitoring and Controlling System through Web Server

    Graduate Thesis & Project

    Wireless Sensor Networks (WSN) has gained a tremendous attention in the field of wireless communication. WSNs have provided unobtrusive monitoring system of the environment, with low power consumptions and rubustness.WSN has touched our daily life, recently new WSNs are designed for bio organic purposes. WSN technology can also be applied in home and industrial application. Now a day’s industries use expensive wired LAN network in order to monitor machineries. In this thesis a cost effective wireless sensor tree network monitoring and controlling system through web server has been designed and implemented. The designed network is more applicable in industrial purpose to monitor and control industrial machineries. This system can collects temperature information and transmits temperature information to the web server. Controlling state of equipment from web server can also be done through this network. As most of the industrial components are stationary and close to each other they can be connected with each other through tree networking. The cheapest way to create a tree network is to use NRF protocol combining with router which is used to upload every data of this network to the web server. This designed WSN network provides a new move towards to the apprehension of modern intelligent monitoring and controlling system.

  • Designing and Implementation of a Advanced Line Following Robot

    Designing and Implementation of a Advanced Line Following Robot

    Undergraduate Thesis & Project

    Line following robot is a traditional introductory automatic robot requiring minimum quantity of resources. This kind of autonomous robot is supposed to follow a predefined path. Common line following robots consists of Infrared Ray (IR) sensors that are installed under the robot for detecting the line and data is transmitted to the processor by specific buses. The processor then selects the proper commands and sends them to the driver and thus the path will be followed by the line follower robot. In this paper the design of an advanced level line following robot controlled by PIC microcontroller is introduced and discussed. The special feature of this robot is its color sensing capability. The line following robot will be able to distinguish between different colors and follow a specific route among several colored lines accurately. Along with this configuration it will also work as an obstacle avoider and perform all other general functions of a line following robot. The robot offers a robust use of its applications in practical work. This robot is programmed in C using Micro C compiler. Circuit simulations have been performed before constructing the hardware portion of the robot using Proteus software.

  • Microcontroller Based Home Automation Using Remote-Control And GSM Technology

    Microcontroller Based Home Automation Using Remote-Control And GSM Technology

    Undergraduate Thesis & Project

    “Smart home” referred to as ‘Intelligent home’ or ‘automated home’, indicates the automation of daily tasks with electrical devices used in homes. The emerging concept of smart homes offers a comfortable, convenient and safe environment for occupants. These include automatic lighting, controlling fan speed etc. Furthermore it has advanced security compared to other houses and can send a call to the user for action that occur inside his house while he is away. In our project we implemented some basic features of home automation. We controlled several load using a remote control which was operated by a microcontroller. In our project We used PWM technique to increase or decrease the fan speed. For security purpose we applied DTMF technology which allows a person to control appliances from a remote location by mobile phone. For example, one could turn ON or OFF the security system from the office. We also included heart beat sensor and human counter in our project. An LCD is connected with microcontroller to show the status of load, pulse rate and visitor number. Finally this project book discusses the analysis, design and implementation of home automation from the start until the end.

  • Design and Implementation Of A Wireless Electronic Notice Board Using GSM System

    Design and Implementation Of A Wireless Electronic Notice Board Using GSM System

    Undergraduate Thesis & Project

    Conventional displays at notice boards use wired system where the update process is slow and requires physical presence of the operator to update a message. The electronic displays which are currently used are programmable displays which need to be reprogrammed each time to change the display. This makes it inefficient for immediate information transfer, and thus the display board loses its importance. This latency and the requirement of the presence of operators for each and every notice board cannot be accepted and must be avoided. The project started with a vision of developing a unique notice board where the update process would be fast and can be controlled from any part of the world. To achieve this purpose, SMS driven automatic display toolkit has been designed which consists of a transmitter part and a receiver part connected to a LCD. The LCD will only display SMS sent from an authorized transmitter. The toolkit receives the SMS, validates the sending Mobile Identification Number (MIN) and displays the desired information after necessary code conversion. The system is made efficient by using ‘clone’ SIMs of same MIN in a geographical area so that the same SMS can be received by number of display boards in a locality using techniques of time division multiple access. Although the target display was latest LCD/LED monitors but due to unavailability of necessary components, a GLCD based design has been proposed. In the future suggestion part, the schematic and proposed plan for using the same system with latest LCD/LED monitors has been proposed as well.

  • Detecting different hand gestures using MATLAB

    Detecting different hand gestures using MATLAB

    Undergraduate Thesis & Project

    Gesture is one of the most natural and expressive ways of communications between human and computer in a real system. We naturally use various gestures to express our own intentions in everyday life. Hand gesture is one of the important methods of non-verbal communication for human beings. Hand gesture recognition based man-machine interface is being developed vigorously in recent years. This paper gives an overview of different methods for recognizing the hand gestures using MATLAB. It also gives the working details of recognition process using Edge detection and Skin detection algorithms.

  • Wireless power transmission via magnetic resonant coupling

    Wireless power transmission via magnetic resonant coupling

    Undergraduate Thesis & Project

    Wireless power transfer is a novel technology and the theory is based on magnetic resonant circuit. The energy can be transferred via magnetic resonant circuit using non-radioactive near field. The self-resonance coils were designed according to parallel resonant circuit configuration and operated in a strongly coupled regime. The energy transfer technique involved the concept of near field where the distance of transmission is a few times the diameter of the antenna and a quarter of the wavelength of the transmitted signal. The near field energy itself is non-radioactive. The advantage of using non-radioactive field is the fact that the power not taken by the receiving coil is returned to the sending unit, instead of being radiated into the surrounding and getting wasted. Though with such a design the power transfer has a limited range, and the range will be smaller for smaller receiving coils. A theoretical and analytical model is proposed and implemented in this project. We have implemented wireless power transmission via magnetic resonant circuit. Based on this system the induced electromagnetic force (EMF) in the receiving coil has been experimentally tested. The primary design involves of a source with bridge rectifier. The second set-up is designed with a transmitter circuit. And the third set-up is involved with the receiving coil. We also have used an intermediate coil in between the transmitter coil and receiver coil. We have achieved significant improvements in terms of power transfer efficiency by using this intermediate coil. Experimental results show that the proposed system can transfer energy through different non-metallic objects. Through precise designing of the prototypes the performance of the system can be significantly improved. This proposed system could be made commercially viable through further research work.