Faculty of Science and Engineering

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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.
A Network infrastructure for Smart Home
(Department of Electronic and Telecommunication Engineering, IIUC, 19-09) Mohiuddin, Talha Misbah; Riyad, Md. Kamrul Hassan
Abstract There are uncertainties with regard to which network technologies will remain current and adaptable to emerging changes in Smart Home requirements. This research is based on using the existing and available network technologies for Smart Homes. In particular, it used CSMA network and Wifi Network based on IEEE 802.11ac standard. It is expected that a usual home has to upgrade the infrastructural network to fully upgrade into Smart home. So, the focus is to make a building design, based on Bangladesh’s prospective and use CSMA and WiFi network individually in simulation.
Study and Analysis of the Radiation Effects of the Cellphone, BTS Tower and Local Wi-Fi Router on Human Body
(Department of Electronic and Telecommunication Engineering, IIUC, 19-10) Islam, Syed Mainul; Bhattacharjee, Shashwata; Azim, Md. Anwarul
We are regularly in contact with electromagnetic radiation in our daily life. From the radiation produced by mobile phone to that derived from X-ray check-ups, electromagnetic waves appear to be present in current standard of living. In the electromagnetic spectrum, higher frequency has taken great attention for wireless communication with better efficiency. But as much as we like the availability of higher data rate, it comes at a price of increased vulnerability of health hazards. A summary of all non-ionizing health effects has been compiled and an analytical discussion on it due to long term exposure to radiofrequency radiation. In this work an analysis of less hazardous manipulative safe distance between individuals and wireless devices such as- BTS antennas and WIFI routers based on calculating Specific Absorption Rate (SAR) on human body at different distances from BTS and WIFI routers is proposed. Finally, different safety distance for individuals for different WIFI router and different BTS antenna types are proposed in this research.
Design and Simulation of a Wearable Micro strip Patch Antenna for Healthcare Monitoring Applications
(Department of Electronic and Telecommunication Engineering, IIUC, 19-10) Mamun, Sultan Shah; Majumder, Md.Qudrat-E-Alahi
DESIGN AND SIMULATION OF MICRO STRIP PATCH ANTENNAS FOR 5G WIRELESS COMMUNICATION
(Department of Electronic and Telecommunication Engineering, IIUC, 19-10) Soliman, Md Mohiuddin; Hakim, Mohammad Lutful
A High Gain And Wideband 2x2 Array Antenna Design of Microstrip Patch Antenna(MPA) for 5G Application
(International Islamic University Chittagong, 19-10-12) Dini, Abshir Mohamud; Mohamed, Yusuf Mohamed
Abstract Due to their low cost, low profile and ease of manufacturing in the circuit boards, microstrip antennas have become a part and parcel of today's wireless communication world. But poor performance, such as low capacity handling, narrow bandwidth, low gain, etc. In some cases, limit their application. Since high frequency bands will be used in the upcoming wireless communication of the 5th generation (5 G), it will be severely affected by path loss. High gain antenna is required to manage this problem. So the main concern of this research work is to design a high gain 2×2 microstrip patch antenna array. The simulation is performed by using the simulation software Computer Simulation Technology (CST) Microwave Studio which is a commercially available electromagnetic simulator based on finite difference time domain technique. The gain, bandwidth, return loss, VSWR and efficiency of the designed 2×2 array antenna is 23.8 dBi, 600MHz, 74.3dB, 1 and almost 99% respectively.
An Ultra-compact Multiband Antenna for 5G massive MIMO Applications Below 6 GHz
(Department of Electronic and Telecommunication Engineering, 2010) Razin, Kazi Fatin Intesar
In this paper, we have designed a compact antenna for massive MIMO applications. The design has been carried out using various parameters such as left-hand tweak and right-hand tweak. The simulations were carried out with different hands simultaneously. The design and simulation of the proposed MIMO antenna are performed in the CST Studio Suite. The antenna is designed at an operational frequency of 2.6 GHz with a dielectric substrate and a conducting ground plane (W×L=19×38.2 mm2). The material of the substrate is FR-4 (lossy), with a relative permittivity of 4.3, a height of 1.6 mm, and a loss tangent of 0.025. The material of the ground plane is copper (annealed) with a thickness (t) of 0.035 mm, and the ground plane is cut into a smaller one to achieve a broader bandwidth. The optimized dimensions of the antenna are Wp=17.17 mm and Lp=22.13 mm. The width of the feedline (Flow) connected to the patch is 2.42 mm, and the length (Fl) is 14.93 mm.
Design and Implementation of An Intruder Radio and Video Alert System
(IIUC Central Library, 2011-04) Ahmed, Shafait
Engineering is not only a theoretical study but it is a implementation of all we study for creating something new and making things more easy and useful through practical study. It is an art which can be gained with systematic study, observation and practice. For that sole purpose I choose to do my project on something new and innovative. In my project I tried to introduce a new trend to the home security system. I named it as “Design and Implementation of an Intruder Radio and video Alert System”. In it I choose a voice recording a play back IC which can record an emergency voice message and plays it when security of the house is disturbed in any way. Along with that I thought it beneficial if the message can be transmitted so that it can be heard in radio. Furthermore I choose a microcontroller for automatic operation of the voice IC on the basis of various sensing system. It’s a very good security system which will provide more security for our home.
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.
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.
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.
Grid Integration of Renewable Energy: Sinusoidal Pulse Width Modulated Inverter
(IIUC Central Library, 2013-06) Kibria, Syed Golam; Islam, Atiqul
Mobilizing and generating affordable as well as environment friendly energy resources is one of the key challengers for any nation in today’s world. Today the top priority for Bangladesh is Energy and Power generation. Presently, out of around 161 million populations, only 40-41% has access to electricity. At least to bring the populations into the facility of electricity access as much as possible within the limited resources, we can utilize the natural resources to fulfill this expectation. Using solar or wind energy in association with the power electronics devices, we can supply the electricity to the consumers within their ability and we will be able to minimize the power problem as possible. Pulse Width Modulated (PWM) inverter is the combination of power electronics devices which reduces the major crisis of costs, where costs are the big issue for developing country like Bangladesh. Now-a-days, the integrated circuits (IC) are so reliable and cheap that make the carrying and inverting or converting elements easiest than the bulky and costly instruments used in the conventional power supply system. We expect that the grid integration of the renewable energy resources using pwm inverter may cause a tremendous remark in fulfilling the lack of power utilization across the world.
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.
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.
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.
DESIGNING AN IC LAYOUT FOR BANGLA ALPHABET CHARACTER
(IIUC Central Library, 2015-07) MOJUMDER, A.T.M. FAZLE RABBI; BISWAS, KALLOL
This thesis discusses the design of an integrated circuit layout for Bangla Alphabet character. Due to concerns of cost, power loss and design complexity the IC based Bangla Alphabet character display become more popular over the other method. Such as microcontroller based method. There are a little work done on the field of IC based Bangla Alphabet character technology. In this thesis we have tried to propose an IC which is capable to make all the Bangla alphabet character. In order to produce the layout, the basic knowledge of fabrication process and IC design rule are expounded. The complete layout of the IC was designed based on its schematic circuit, diagram which consists of NOT gate, 5-input AND gate, 2-input and 3-input and 5-input OR gate. The layout has undergone design rule checker by MICROWIND. Both layout and schematic circuit of the IC were than simulated through MICROWIND and DSCH to ensure they were identical. The both simulated output of IC should be essentially identical and should match the theoretical results. All Bangla vowel and consonant can be characterized through our proposed IC.
Development of an Automatic Street Light Management System
(IIUC Central Library, 2015-11) Uddin, MD. Jahir; Anwar, Galib
Nowadays, human life has become too much busy for manual work. It is rare to find time even to switching the lights wherever necessary. This project is basically organized for the developing modern society among us. For a developing country the most important content is to save its electrical energy. We tried here to develop such a street light system where we can reduce both cost and manual function. This project is developed in such a way that the percentage of manual work is almost demolished. Two types of sensors are used here. Light Dependent Sensor usually known as LDR is used to detect day & night, which will help to operate the system to run automatically and infrared sensors are used here tor detecting the movement of the roads. Arduino Mega is used as the brain of this project which controls the full system. A GSM shield is used here to send alert messages in case there occurs any problem on the system or for safety issues. The programming language used in this prototype version is C Language. Finally the system is designed and implemented in its prototype version.
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 Implementation of an Autonomous Vehicle System with GPS Tracking
(IIUC Central Library, 2015-11-12) Hossain, Md.Moazzem; Raihan, Omar Faruque
An autonomous vehicle is a robotic vehicle that is designed to travel without a human operator. It is capable of sensing its environment and navigating without human input. The project aims in designing an autonomous vehicle which is capable of detecting any obstacle before it and able to avoid this obstacle automatically after checking obstacle in two sides of this vehicle by rotating sensor using servo motor. GPS tracker is used for finding vehicle position on the road and sending this location via SMS to the owner mobile phone. By putting geometric coordinates in Google map, the vehicle location can be seen. Arduino UNO is used as processor and ultrasonic sensor for sensing obstacle, servo motor for checking free path in left and right side and GPS tracker for getting continuous update about position of vehicle. Designing a fully autonomous vehicle is very costly and in this project, low cost autonomous vehicle has been designed with GPS tracking which can be used for sending necessary relief and medicine at the time of natural disaster and war when human presence is risky. This vehicle can also be used in military application.
Design And Implementation Of Arduino Based Battlefield Assistive Robot
(Department of Electrical and Electronic Engineering, 2017) SHORIF, MD. BAIJID HASAN; 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