Theses, Dissertations & Reports

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Computer Vision Based Industrial and Forest Fire Detection Using Support Vector Machine (SVM)
(IIUC Central Library) Rahman, Md Abdur; Hasan, Sayed Tanimun
Burning issue is a very serious issue nowadays in our garments and industries sector. The workers are facing the problem and losing valuable life. On the other hand, investors are losing their hope in this sector. In this paper, we have propounded a vision-based system which is capable to detect fire. We have developed a pipeline model consisting of Background Subtraction, Color Segmentation, Special Wavelet Analysis & a Support Vector Machine which will detect real-time fire and smoke.For SVM model we have trained the dataset in two ways. One is the different kind of fire image and other is the image that looks like fire but it’s not fire. If the situation is breaking out of fire then the system will immediately raise an alarm and an automatic SMS and email will be sent to the authority and nearby fire station. In this study, the proposed strategy works on a very large dataset of fire videos that have been collected both in real life situations and from the internet.In this SVM pipeline model shows the maximum accuracy is is 93.33%. The system can fulfill the precision and detect faster real-time fire detection. Its industrial application will aid in the early detection of fires, as well as emergency management, and so greatly contribute to loss prevention.
Reduction and Utilization of Emitting CO2 by Using Molten Carbonate Fuel Cell (MCFC) Stack for Sustainable Development in Bangladesh
(IIUC Central Library, 2017-12-14) Rahman, Md. Matiur; Rashid, Minhaz Ur
Reduction of the CO2 emission from the existing natural gas and coal based power plant is a great challenge. Existing power plants of Bangladesh emit CO2 at a concerning rate. Meanwhile, that causes serious greenhouse effect. But Bangladesh government cannot afford to simply stop producing power from the existing power plants just because they are harmful to the environment. In this research work molten carbonate fuel cell implementation with the existing power plant has been proposed. This proposed hybrid power supply system not only reduces CO2 emission but also produces power by utilizing that CO2. Meanwhile, it makes the existing power plant environment friendly as well. After observation from MATLAB Simulink and COMSOL results it can be concluded that this proposed hybrid power plant is able to reduce CO2 emission by 70% from existing power plant and at the same time by using the reduced CO2, MCFC stack can produce power with an efficiency of 41.19% for a cell number of 1000. In the inverter section for discrete time operation, the maximum efficiency was found to be 59.81%. Again, from the mathematical analysis it was seen that Ghorashal and Ashuganj have the capability of producing 53.46 MW and 16.16 MW respectively. Meanwhile, considering 1 KW to be the maximum demand of each house it is possible to supply 53000 and 16000 houses respectively by using CO2 from both Ghorashal and Ashuganj power plant. Finally, this proposed hybrid power supply system would be a solution to ensure CO2 reduction, utilization and sustainable development in Bangladesh.
Comparative Analysis on Tropospheric Scintillation Prediction Models over Bangladesh Climate
(IIUC Central Library, 2018-09) Hossain, Md. Rabiul; Uddin, Md. Nizam
Satellite communication depends on various environmental elements such as cloud, fog, rain and atmospheric scintillation. In this report, the tropospheric scintillation of Bangladesh climate is predicted by four different prediction models which are ITU-R, Karawasa, Van de Kamp and Otung. This report compare the predicted results and found that the maximum affected scintillation fade depth (SFD) in Barisal and Rajshahi and the SFD is minimum in Mymensingh and Dhaka. The report also indicate that the ITU-R and Van de Kamp models offer better performance.
Performance Investigation of Three Precoding Methods for Maximal Energy Efficiency in Next Generation Wireless Communications System
(IIUC Central Library, 2018-09) Kabir, Md. Humayun
Nowadays, Energy Efficiency (EE) has become a buzzword for future wireless communication systems. Consequently, Massive Multiple Input and Multiple Output (MMIMO) technology have attained a great attention for Multi-User Communication scenario. MMIMO systems are crucial to maximizing energy efficiency (EE) and batterysaving technology. Achieving EE without sacrificing the quality of service (QoS) is increasingly important for mobile devices. We first derive the data rate through three linear precoding: Maximum Ratio Transmission (MRT), Zero-Forcing (ZF), and Minimum Mean Square Error (MMSE). Performance EE can be achieved when all available antennas are used and when taking account of the consumption circuit power ignored because of high transmit power.The aim of this work is to demonstrate how to obtain maximum EE while minimizing power consumed, which achieves a high data rate by deriving the optimal number of antennas and number of users in the massive MIMO system. The consumed power of the system includes transmitting power, circuit power consumption, and idle power consumption. The circuit power consumption dominates the system power consumption when the transmitter is equipped with the massive number of antennas. Hence, to analyze this problem, we propose a power consumption model. Maximized EE depends on the optimal number of antennas and determines the number of active users that should be scheduled in each cell. The results show the optimization of Energy with respect to the number of functioning mobile users, number of assigned base stations and launch input power in the system respectively.
Design and Performance Evaluation of a Campus Network Based on Different Routing Protocols
(IIUC Central Library, 2018-09) Refat , Chowdhury Mohammad Masum
A Campus Area Network (CAN) can be characterized as a Local Area Network (LAN). Generally, it is a network which connects various entities of an office e.g. various infrastructural entities of a university campus. In this paper, it is designed a new CAN topology and analyzed the performance of CAN by considering Routing Information Protocol (RIP), Enhanced Interior Gateway Routing Protocol (EIGRP), and Open Shortest Path First (OSPF) routing protocols. The simulation results were analyzed with a performance comparison among these three routing protocols. It is found that the proposed design model reduces the cost from bandwidth perspective and also provides values for various network parameters which lead to better Quality of Service (QoS) in the CAN.
Implementation of Dynamic Multipoint VPN over IPsec for Secure Enterprise Network
(IIUC Central Library, 2018-07) Alam, Towhidul; Hamid, Kawsar
The Purpose of this thesis is to promote an improvement of availability and remote access for secure enterprise network infrastructure by using dual hub dual DMVPN(Dynamic Multipoint VPN).using multipoint GRE (mGRE) over IPSec data transmission of enterprise network are reliably secure. DMVPN is a technology that implements different protocols concept such as IPSec encryption, next hop resolution protocol (NHRP), generic routing encapsulation (GRE) and provides dynamic and static IPSec tunnel between spoke to hub, spoke to spoke. In this book, we implement the technique of DMVPN to constructs secure enterprise network of enterprise organization and by using hot standby routing protocol (HSRP) to overcome the failure network. The simulation was done by GNS3 and packet capture by wire shark software. From the result of the test, DMVPN technology with HSRP protocols completely fulfills the real necessity that undertaking utilizes a system for enterprises. It offers a mode which is a fast, advantageous and practical venture and accessible up time network to an endeavor for building a safe and dependable network.
Performance Evaluation of MIMO in Urban Microcell for Dhaka City at 28 GHz Frequency
(IIUC Central Library, 2018-07) Kamrul, MD. Imtiaz; Haque, Kazi Mazharul
5th generation cellular network is the upcoming revolution in the cellular communication world. It tends to operate in millimeter wave frequency to increase the usage for the next decade. While the researcher focuses on optimising spectral efficiency and increases bandwidth for incredible demand, only the mmWave spectrum have capability that can accommodate the ever-expanding consumption for the wireless network. The 28 GHz frequency band is a serious candidate for mmWave communication with more than 3 GHz of available bandwidth. The line of Sight (LOS) is a direct line between the radio transmitter and receiver and many types of radio transmissions depend on it. Unfortunately, for arbitrary transmission networks, obstacles are commonly caused by non-line-of-sight (NLOS) conditions. This thesis presents a proper number of selection antenna element in 28 GHz frequency in NLOS and LOS environment and their characteristics by analysis of different channel parameter in Urban microcell scenario for Dhaka city. This thesis also discusses the radio propagation mechanisms that impact the performance of the network in the form of time delays, received power, azimuth AoD, Elevation AoD, Azimuth AoA, Elevation AoA, path-lost and RMS delay in LOS and NLOS environments.
Design a Grid Connected PV Solar System for IIUC Female Academic Building
(IIUC Central Library, 2015-11) Tipu, Md.Ohidul Alam; kanungo, Biswajit
This study aims at developing a standard procedure for the design of a grid connected PV solar system for IIUC campus using rooftops of those building which are favorable to the sunlight and other system is car parks. Bangladesh is facing an acute shortage of energy. Natural gas is the main source of electricity generation in Bangladesh. But the limited gas reserves cannot fulfill the necessities of both domestic requirements and industrial and commercial demands, especially demands for electricity generation for long. Due to this shortage of electricity, not only we are facing load shedding across the country but also the industrial sector is badly affected. Since load shedding occurs, the campus faces so many problems due to absence of continuous power. To ensure continuous power supply, we have chosen solar power as our second way to fed power which will be grid connected. This will be beneficial way to make up the power crisis. A grid-connected photovoltaic power system will reduce the power bill of our campus as it is possible to sell surplus electricity produced to the local electricity supplier. These are comparatively easier to install as they do not require a battery system. Grid interconnection of photovoltaic (PV) power generation systems has the advantage of effective utilization of generated power because there are no storage losses involved. A photovoltaic power system is carbon negative over its lifespan, as any energy produced over and above that to build the panel initially offsets the need for burning fossil fuels. Even though the sun doesn't always shine, any installation gives a reasonably predictable average reduction in carbon consumption.
Design and Development of a Smart Wheelchair Prototype for Physically Disabled People.
(IIUC Central Library, 2017-12-14) KHAN, MD. SALMAN; HOSSAIN, MD. SHAKHAWAT
Bangladesh is a developing country with a large number of people. Every year, a large number of people become lame due to road accident and unable to walk normally. Wheel chair is the best assistive device used by elder and differently abled people who cannot walked normally. The driving and controlling of traditional manual wheel chair are much harder task. So our aim is to build a powerful wheel chair which helps the handicapped (lower half of the body is paralyzed) people to travel without depending others. The bone for physically challenged people is a wheel chair. The wheel chair is developing day by day. The modern wheel chairs come equipped with a self-motor to help run the wheel chair by a joystick. The joystick controlled wheel chair is a bit difficult for certain people to operate. Mainly for old and weak people. Again, the voice controlled wheel chair is not suitable at all situation because of noisy environment and sound. It is also difficult to give command for old or weak people. Moreover this wheelchair is costly. So our proposal is to make such a cost effective electronic gesture based wheel chair which will be easy to operate rather than the joystick input. In our proposal, we will show to control a wheel chair using in build gesture function of a smartphone and touch sensor. A special feature of our wheel chair is that, obstacles in front of the way of wheel chair can be detected which can avoid the collision between chair with that detected obstacle. Another feature of this chair is to use an IP camera that gives visual and acoustic information to the guardian of the riding people. The aim of this developed electric wheelchair is to provide easy and comfortable life for the handicapped people whose lower half of the body is paralyzed.
Design and Implementation of an Astronaut Assistive Mining Robot
(IIUC Central Library, 2017-08-18) Meraz, Mohammad Aman Ullah; Thosan, Abhik Nath
In this era of science and technology robotics is a very popular field of research. Many researchers all over the world try to implement various types of robots for using in different field instead of human. The main focus of the project is to develop a robot which is able to help astronaut indifferent planetary surface. The robot can be controlled by the command of human by the remote. Joysticks and Xbee transceiver module has been used for sending and receiving all the control signal from the remote. Video transmission has been done by mobile camera for controlling the robot by seeing the circumstances in the site. For mining and drilling a robotic arm with a driller has been used for drilling the regolith and a collector or digger has also been added for digging and collecting regolith. For storing the collected regolith main storage has been attached in the robot and actuators are used in the degrees of freedom of arm, collector and storage. This robot performs all the objectives almost satisfactorily. For using gear motors the performance of this robot is slightly slow. The robotic arm moves slowly but smoothly. The collector can collect sand and rock and can store them. It can also dump stored regolith in a specific box.
Development of an Automotive Health Monitoring System for Doctor’s Chamber
(IIUC Central Library, 2017-08-18) Nath, Ashim; Ashraf-Ur-Rahman, Muhammad.
An automotive health monitoring system with RF communication for doctor’s chamber has been designed and implemented in this project. Our aim is not only to provide the measured data but also to couple the resultant data with user’s body mass index (BMI) and complete the whole process within a short time so that a doctor can give proper counselling to his patients. The system consists of Arduino Uno, LCD display, RF transmitter and receiver and three peripherals; namely, (1) height sensor (2) weight sensor (3) pulse sensor. Microcontroller ATmega328 which is mounted on Arduino Uno stores the program. All programs are written in C programming language. RF transmitter and RF receiver provide optioning to transmit the measured and calculated data towards doctor’s console. Finally, LCD display shows height, weight, pulse, BMI score and also categorize patient’s health status in accordance with ideal BMI chart. For example, if BMI score of a patient be 23.5 then his health status will be shown as “HEALTHY”; again, if the BMI score be 28 then the health status will be “OVERWEIGHT” and so on. Our proposed device can also be used as self-health manager as it is very user friendly and doesn’t require much space to install. We believe that this system would be a great helping hand to quantify the medical treatment
Design and Implementation of an Internet of Things (IoT) Based Industrial Load Switching and Vibration, Sound, Gas Monitoring System via GPRS
(IIUC Central Library, 2017-08-19) Dey, Shuva; Islam, Mohammad Apnarul
An Internet of Things (IoT) is rapidly increasing technology. As increasing popularity of an Internet of things (IoT) so devices getting smarter day by day. Internet of Things (IoT) is the network of physical objects or things embedded with electronics, software, sensors, and network connectivity, which enables these objects to collect and exchange data. An Internet of Things (IoT) has given us a promising way to build powerful industrial systems and applications by using wireless devices, microcontroller, and sensors. In our project, we are developing a system which will automatically monitor the industrial parameter’s (i.e. vibration, sound and gas) and switching the industrial appliances using concept of an Internet of Things (IoT). A main contribution of this project is that it summarizes uses of an Internet of Things (IoT) in industries and takes Intelligence decision to monitor and switching the Industrial load. This kind of system makes operations simpler and thus reduces errors. This kind of technology switches over various loads and monitoring industrial vibration, sound and gas thus providing comfort, security and efficiency for the users. It is design with low cost and monitoring is a fully wireless system. It is an efficient monitoring system and switching from a fixed position, increased safety, less human error. The internet connection is needed for monitoring the whole system.
Design and Implementation of Arduino Based Battlefield Assistive Robot
(IIUC Central Library, 2017-08-18) Hasan, Md. Baijid; Nuruzzaman, Shekh
With the sophisticated technological advancement nowadays robotics has become a hot field for research. Robots are now used by military forces for reducing risk of their causalities and to defeat their enemies. The major focus of this project is on the use of robot in war, peace and as well as their impact on society. Here Radio Frequency modules signals are used in wireless remote control system for transmitting and receiving wireless logic signals to control the motors and actuators of robot control system. Night vision monitoring system has been added which will capture and transmit the information surrounding the robot to the operator. With this feature the robot can not only transmit real time videos with night vision capabilities but cannot also be identified by the enemies in war zone. A metal detector and GSM module has also been added which will inform us about any bomb underneath the robot vehicle. Another assistive feature here added that is a robotic arm has been installed to pick or drop some particle if needed. In this paper, Remote operated Warfield assistive robot is a small robot designed for assistance, sort range surveillance and inspection purpose.
Design & Implementation of An Arduino Based Solar Powered Weather Station
(IIUC Central Library, 2017-08-18) Saheel, Fahim Ashab; Islam, Mohammad Saiful
Weather is the state of the atmosphere and is a very essential part of human life. Important things like living in a place or scientific experiments depends on weather of that particular area or state or room. For these, people need atmospheric measurements of temperature, humidity, pressure etc. and these information is providing by weather stations. This paper describes the approach to set up a weather station based on Arduino. The main attributes of this weather station is to measure the surrounding atmospheric readings of weather. These readings will be collected by some sensors which are temperature and humidity sensor (THD), barometric pressure sensor. A wifi module is also used in this weather station to maintain a connection to the internet to get more informations like sunrise, sunset, rainfall and wind speed . All these readings will be displayed on a LCD display and every steps of this station is directed by an arduino mega microcontroller. A matrix keypad is used in here to help the users to view the readings of current weather update, predictions of today and tomorrow easily. Also this weather station is powered by solar panel.
Design and Implementation of a Sine Wave Instant Power Supply
(IIUC Central Library, 2011-06-18) Chakma, Rocky; Alam, Rashedul
The aim of this project is to make a sine wave instant power supply and analysis the effect of different types of load on home appliances. There are many types of Instant power supply (IPS) in the market. Most of these outputs are PWM and the efficiency of these are less than sine wave IPS. But the sine wave instant power supply (IPS) are costly than other instant power supply. The instant power supply mainly contain with two parts. The first one is inverter part which convert 12VDC to 220VAC.The second part is battery charging part which charge the DC source. The output from the inverter part is sine wave. The efficiency of this sine wave instant power supply is better because output of the other instant power supply is square wave. This instant power supply is cost effective than other types of instant power supply.
A Study to Set up Hybrid Recharging Station for E-Vehicles As Bangladesh perspective
(IIUC Central Library, 2014-09) Mitra, Raktim; Ahmed, Syed Bahauddin
Renewable energy resources can play an important role in a developing country like Bangladesh. In Bangladesh the electric vehicles powered by rechargeable batteries are becoming popular day by day but it is a matter of great regret that a big amount of power is being used daily to recharge their batteries at the recharging stations. As Bangladesh faces acute power crisis this is a big challenge. This paper has proposed a PV based recharging station for electric vehicles and made a detail analysis on it.
Microcontroller based self guided vehicle
(IIUC Central Library, 2013-06) Hossain, Md.Anwar; Sharif, MD. Nawaj
To facilitate the leaning about Unmanned Autonomous Vehicles (UAV), (SGV) plays an important role. Implementing and designing of a microcontroller based Self Guided Vehicle helps to understand how unmanned vehicle work. Microcontroller acts as a brain of the vehicle which was programmed with the help of common programming language like C. Different kinds of sensor used for avoiding obstacle and feeling the surrounding environment of the vehicle. The movement of the vehicle or selecting the right path is controlled and monitored by the microcontroller. Thus a self controlled vehicle gives the platform to learn controls, robotics and automation.
A thesis on Robust Droop Controller for Accurate Proportional Load Sharing among Parallel Operated Inverters in Islanded Microgrid.
(IIUC Central Library, 2015-05) Mohiuddin, Abdullah al; Mola, Md. Asraful
A microgrid is a part of a distribution network embedding multiple distributed generation systems like photovoltaic panels, small wind turbines etc. and storage systems. This paper focuses on the islanded operation of microgrids. In this mode of operation, the micro-sources are required to operate autonomously to regulate the local grid voltage and frequency. To make voltage and frequency stable, there have several control method in microgrid. The conventional droop control is typically used to achieve this autonomous voltage and frequency regulation. But conventional droop control has real and reactive power sharing limitations. To share the load accurately in proportion to their power ratings two condition should have met. The condition are the droop controllers must have same per unit output impedance and have same voltage set-point for the inverters. But it is difficult to meet in practice. In this paper, the inherent limitations of the conventional droop control scheme are revealed. That’s why robust droop controller is proposed which can share the load accurately without meeting the above conditions. It also help to reduce voltage drop due to load effect and droop effect. The robust works against numerical errors, disturbances, parameter drifts and component mismatches. In simulation part, the output shows the proportional load sharing among inverters.
Optimization, Simulation And Control Strategy Of Hybrid Renewable Power System For Base Transceiver Station (BTS) In Bangladesh
(IIUC Central Library, 2014-06) Hossain, Md. Emran; Siddiquee, S.M. Shahnewaz
Base Transceiver station (BTS) is a set of telecommunication network that organized as tower with transmitter and receiver antennas. The function of BTS is power amplification so it can connect the telecom operator networking with customers. Power is the main issue for telecom operators to set up cellular network coverage in remote or isolated areas. Power generation by combining both renewable and conventional sources known as hybrid power generation, can be the most efficient way for electrification of Base transceiver station (BTS). The aim of this thesis is to determine the optimized system configuration of PV based renewable hybrid system for remote off-grid BTS sites as well as grid connected BTS sites in Bangladesh. The possibility of supplying electric energy from solar-wind resources to the BTS is also investigated. For this analysis three case study is considered. We analyzed the possibility of using renewable source for both off-grid and grid connected BTS taking Chittagong as reference site. The final optimization of the renewable based hybrid system is carried out through Hybrid Optimization Model for Electric Renewable (HOMER) software to find out that whether the system is feasible or not for proper electrification in the BTS.
Design and Implementation of a Wireless Multi-meter
(IIUC Central Library, 2012-11) Hossain, Md.Shahed; Uddin, Md. Jashim; Chowdhury, Md. Shoyaibur Rahman
A wireless multi meter is an instrument used to measure the current, voltage, frequency and power at a load from a distance. In this project a wireless multi meter was designed which consisted of two major parts: 1) Measuring Section Module and 2) Remote Display Module. Measuring Section Module consisted of three major section which are i) signal input, ii) Micro controller, iii) RF transmitter whereas the remote display module also consisted of three parts i) RF Receiver, ii) Microcontroller and iii) LCD Display Module. At first the signal under measurement, was converted to a 6 volt signal through a transformer and was fed to the microcontroller (ATmega8A) input. After all relevant calculations the dc voltage produced by the micro controller was sent through an RF Frequency transmitter module (BX-R433A) having an omnidirectional antenna. The RF receiver module (KSTRX806E), situated at a maximum distance of 150 meters from the transmitter, received the transmitted data and the microcontroller next to it was used to decode the signal intercepted by the receiving antenna. The result of the calculations is then displayed through a 16-bit LCD display module (TM162A). This multi meter was found to measure the values of the voltage, current, power and frequency ranging from (0-250) V, (0-20) A, (0-5000) VA and (0-125) KHz respectively. The main attraction of our designed circuit was the simplicity of the circuit, easiness of implementation and the availability of components required in our country.

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