Final Year Projects-2012 Department of Electronic & Telecommunication Engineering

University of Moratuwa

Final Year Projects 2012

Group 01

Hardware Implementation & Performance Evaluation of the

Physical Layer of IEEE 802.22(WRAN) Receiver Supervisor : Dr. Chandika Wavegedara, Dr. Ajith Pasqual

The Cognitive Radio concept is a flexible and effective solution for the problem of

spectral crowding due to the under utilization of the radio spectrum. The recently

released IEEE 802.22 WRAN Standard developed by the IEEE 802 LAN/MAN Standards

Committee is the first ever standard for Cognitive Wireless Regional Area Networks, and

it utilizes the unused TV white spaces to provide broadband access to rural areas. This paper presents a hardware

implementation of the Physical Layer of the IEEE 802.22 WRAN receiver along with a performance evaluation for the

Physical Layer. For this purpose, a simulation model of WARN PHY Layer has been designed, with the baseband

transmitter being implemented using MATLAB and the baseband receiver on FPGA.

Group 02

A Non-Linear Turbo Receiver For LTE Uplink Supervisor : Dr. Chandika Wavegedara

Non-linear Turbo Equalization is an advanced iterative equalization and decoding technique

that allows to reduce the re-transmissions and hence enhance the quality of network. In

this project, a new searching algorithm for sphere detection is proposed. The proposed

algorithm reduces the computational complexity of equalization process compared to the

original K-best algorithm. The work is in the context of Long Term Evolution (LTE) Uplink,

3GPP specifications release 10. The performance of the algorithm is evaluated for 2x2 MIMO 64QAM in an Extended

Typical Urban model (ETU) channel profile.

Group 03

Vending Machine for Fast Moving Consumer Goods Supervisor : Dr. Ajith Pasqual

With the ever-increasing busy lifestyles of Sri Lankans, the concept of ‘Self Service’ has to be

extended from Super Market purchasing to 24x7 purchasing which requires vending

machines. Our project is to develop a complete commercializable & low cost Vending

Machine Controller System that is in compliance to the relevant international standards.

Other than the traditional cash payment mechanism, it is possible to pay via NFC contact

less cards & from the customer’s mobile phone through SMSs. The cash payments are done through a bill acceptor that

is completely designed by us which is configured to accept Sri Lankan currency notes & has the capability of detecting

counterfeits successfully due to the unique sensors & algorithms implemented.

Final Year Projects 2012

Group 04

Field Testing Tool For Television Broadcasting Supervisor : Eng. Kithsiri Samarasinghe

In the modern Television broadcasting industry, a Field Testing Tool is an essential

equipment that can be used for setting up and maintaining a network that is always

monitored both quantitatively and qualitatively. But unfortunately when considering the

present context of broadcasting industry in Sri Lanka such a tool is no been used. So, as our

project we will be implementing a field testing tool for television broadcasting industry in

Sri Lanka. The data acquired from the implemented drive test tool will be used to create the digital map of the network

for the given geographical area, which can extensively be used for the analyzing purposes as well as for better network

planning. The implementation of this tool can also contribute greatly for the upcoming Digital Broadcasting era of Sri

Lanka.

Group 05

Synchronized Medical Image Viewer for Remote Consultation Supervisor : Dr. Nuwan Dayananda

The analysis of medical images is a critical step in the process of patient treatment and

care. In Sri Lanka the shortage of radiologists has proven detrimental to patient treatment

and care due to the fact that surgeons and radiologists cannot meet regularly at the same

location/hospital in order to perform image analysis and surgical planning. The proposed

solution is a medical image viewer capable of enabling radiologists and surgeons to work in a collaborative and

synchronized space, where they are able to analyze scans in an accurate, efficient and secure manner while being

located in geographically disparate locations.

Group 06

Intelligent Seeker Supervisor : Prof. Dileeka Dias

In today’s context, people expect mobile applications to become smarter, irrespective of

the smartness of the mobile device they use. Intelligent Seeker is an intelligent SMS

application which helps any mobile user to find the availability a specific product of

his/her interest around a certain location he/she specify. By providing the availability

information listed by distance and by price, it puts an end to the mind struggle a person needed to figure out the best

place to go. Not limiting to the smart phones, tolerating the spelling mistakes, extract the key information from any non-

standard sentence pattern, knowledge base which learns and grows are the key intelligent features.

Final Year Projects 2012

Group 07

Audio Watermarking and Extraction in a Constrained Environment Supervisor : Prof. Dileeka Dias

An audio watermark, which is similar to a picture watermark, is a set of ASCII letters hidden

within an audio clip without noticeable distortion. This watermark must ride all its length via

the channel, be it a mobile, broadcast or over the air, without deterioration and must ride in

a secure manner. We developed an audio watermarking algorithm, with the above

mentioned requirements, and then customized it to develop two applications; one is a

secure money transaction application via a mobile voice call and the other is a personalized uni-cast announcement

system through a public addressing system.

Group 08

IEEE WAVE (802.11p/1609.x) based Adaptive Traffic Control System

for a Four Way Junction using Vehicle to Vehicle (V2V)

Communication Supervisor : Dr. Ajith Pasqual

Traffic coordination in intersections is a very studied and challenging topic. We develop a

traffic control algorithm and design a virtual traffic light protocol that can dynamically

optimize the flow of traffic in road intersections without requiring any roadside

infrastructure. We use IEEE 802.11p/1609.x protocols known as Wireless Access in Vehicular Environments (WAVE) as

the standards for the Vehicle to Vehicle (V2V) data dissemination. WAVE is a next generation intelligent transportation

technology that aims to improve transportation environments and road traffic control is a promising application of

WAVE standards.

Group 09

Automated Certifying System for Important Documents Supervisor : Dr. Ruwan Weerasuriya

Dr. Chulantha Kulasekere Today certification of a copy of a legal document is done manually. Illegal certifications,

difficulty of identifying modifications, personnel dependence and time consuming are major

drawbacks of this system. In order to avoid the above mentioned drawbacks, The

certification procedure can be automated so that it can be done from anywhere in the

world. This project proposes a solution to certify a document automatically form anywhere. Objective of this project is

to develop an automated certifying system for university transcripts. But the project can be generalized for validating

many kinds of important documents.

Final Year Projects 2012

Group 10

External stimuli independent EEG based Brain Computer

Communication using consumer grade EEG device Supervisor : Dr. Ajith Pasqual

Brain Computer Interaction is a technology developed with the intention of building an

alternative communication channel between mind and machine which is independent of

ordinary neuro-muscular functions. Generally, medical grade EEG equipment is used in BCI

research. In this research we look into the possibility of developing a system designed to

classify imagined motor action using a consumer grade EEG device. The system we present uses data recorded from

electrodes positioned over sensorimotor area of the brain to identify patterns that enable discrimination of different

motor related thoughts.

Group 11

Implementing a cache controller on FPGA Supervisor : Dr. Ajith Pasqual

Cache memories play an important part in reducing the latency in accessing memory by

utilizing temporal and spatial locality of data. Latencies have been critical to such an extent

that most of the developers are now contemplating on moving the software based

implementation in to hardware based (FPGA) equivalents. This paper presents the

implementation of a cache controller on Vertex 6 ML605 FPGA with additional functionality to measure performance via

PCI express channels. Cache memory is integrated to communicate with a DDR3 memory while the internal

communications are done via AXI4 protocol.

Group 12

Driver Development for IEEE WAVE (802.11p/1609.x) based wireless

module with embedded Networking services Supervisor : Dr. Ajith Pasqual

The project outcome is a wireless module which provides all-in-one ready to be used

platform for developers to directly deploy WSMP/UDP applications with the ease of already

completed tasks such as creating customized hardware platform, finding reliable DSRC

wireless modules and developing 802.11p driver and 1609.3 stack .The system comprises two Vehicle-to-Vehicle On

Board Units, designed to provide integrated communication capabilities for ITS applications and to support

communications using 5.9GHz DSRC protocol. An application of intersection collision avoidance is used for

demonstration purposes.

Final Year Projects 2012

Group 13

Intelligent Travel Assistant Supervisor : Prof. Dileeka Dias

Sri Lanka is considered as the best valued destination for holidays. Thus, the arrival of

tourists increases rapidly Not only foreign tourists but also local travelers are unaware of

places of attraction with scenic beauty, historical significance etc. Therefore, many tourists

seek tour guide assistance for travelling. But, there isn’t sufficient number of guides available

during seasons ‘MyGuide’ intelligent travel assistant is a software application for mobile

devices that has the capability of intelligently assisting travelers by understanding user preferences, pushing information

that are preferred by user and providing other information on demand with audio and multimedia integration.

Group 14

Mobile wireless body area sensor network for fitness training Supervisor : Prof. Dileeka Dias

The goal of this project is providing a mobile, energy efficient, but still an accurate way of

quantifying the energy expenditure during a fitness exercise. The main aspects of the

project are the sensor hardware used to measure the physiological features related to

energy expenditure, the body area network which collects the measurements from the

sensor nodes, and the algorithm for energy computation. The prototype system developed

includes an IEEE 802.15.4 (Zigbee) based wireless body sensor network measuring

parameters such as heart rate, nasal flow rate and body temperature, and a mobile application for visualization.

Group 15

Anti Personnel Mine Detection Robot Supervisor : Dr. Rohan Munasinghe

This product aims at automating the land mine detection process which is currently being

done manually. The manual detection process is stressful on the operator which makes it

inefficient to employ humans to detect land mines. The mobile robot can operate in

manual or automated mode to allow the operator to take full control over its actions

whenever necessary. Power generation will be done onboard, using an IC engine which

will enable long hours of uninterrupted operation. The all-terrain platform on which the

detector is mounted can be used for other applications as well, such as surveillance, search and rescue and in active duty

in armed conflicts.

Final Year Projects 2012

Group 16

Quadrotor UAV with autonomous navigation Supervisor : Dr. Rohan Munasinghe

To enable researchers to try out different control level algorithms and trajectory planning

algorithms on a generic quadrotor platform and to fly that platform autonomously with

minimum human interaction are the primary aspects of a laboratory type quadrotor UAV.

In order to gain substantial control over gyro noise, inevitable vibrations of the platform

and attitude or heading, different algorithms are needed to be implemented and tested. A

suitable control level integration of Euler angle rate and attitude error compensation is

necessary to obtain smooth maneuverability and subsequent deployment of autonomous navigation module and

ultimately to employ them in their field to perform aerial photography and short range surveillance in critical situations

like disasters and unanticipated traffic congestion.

Group 17

Vision-Based Expressway Management Information System Supervisor : Dr. Ranga Rodrigo

Southern Expressway is Sri Lanka’s first E class highway which reduces the time taken to

travel from Colombo to Galle drastically. Even though several surveillance cameras are

installed at the interchanges of the expressway, currently there is no way to automatically

catalog the vehicles entering or leaving these interchanges. Thus in this work we utilized

the image data acquired from these cameras to automatically log the journey information

of all the vehicles travelling via the expressway, such that this information could be used for statistical analysis,

fraudulent detection and managerial decision making. We developed a scalable, distributed and real-time system which

is partially invariant to illumination and rotation. We made several improvements to the existing methods as they failed

due to the low resolution images, and incorporated intelligent algorithms, image processing techniques and domain

knowledge to improve the accuracy.

Group 18

An Endoscope Tracker in 3D Space Using MEMS Sensors Supervisor : Dr. Nuwan Dayananda

Looping of the endoscope in sigmoid colon is a painful experience to the patient and a

complication that surgeons need to avoid when conducting a lower GI endoscope

examination. Until now, there were no method to detect endoscope looping and surgeons

needs to rely on their experience and judgment to avoid this situation. As a solution for this

problem in this project, we propose a method to visualize the orientation of the endoscope in the human body in real

time. For this, we use 8 MPU 6050 gyroscope and accelerometer sensors and 8 compass modules to take the orientation

quaternions of 8 positions of the endoscope and then we use SLERP algorithm to interpolate these 8 points to visualize

the whole tube.

Final Year Projects 2012

Group 19

Tree Growth monitor for Rubber plantations in Sri Lanka Supervisor : Dr. Chulantha Kulasekere

Rubber is one of Sri Lanka’s primary exports and a major contributor to the country’s GDP.

Young Rubber trees in plantations need to be monitored continuously until they reach a

tappable state in order to ensure that they meet expected growth deadlines. For this

purpose, the girth of each tree in a young plantation is measured periodically - currently,

once a year. Information from such measurements is used by the management to monitor the growth of young trees.

They are used for managerial decision making in resource allocation, planning and fertilizing, identifying clones of rubber

which show good/ poor growth and determining tapping time lines for different regions. Currently the growth of trees is

measured by workers who manually measure the girth of tree using a regular measuring tape. This process is known to

be extremely error prone and inefficient. Managerial decisions taken based on erroneous measurements affect the

revenue earned by the Rubber industry adversely. In our work we propose a hardware and software solution to

efficiently and accurately measure the girth of Rubber trees.

Group 20

Advanced Seed Viability Checker Supervisor : Prof. J. A. K. S. Jayasinghe

Viability determination of paddy seeds is an important phase in seed quality testing process.

The research component of the project mainly focused on determining the correlation

between conductivity and the viability of the seed samples according to the international

standards. Advanced seed viability checker is the implementation of the above mentioned

method. This product is an electronic device which provides more accurate, fast seed viability readings avoiding human

errors in the process. The simple and effective solution provided by this product will be resourceful in increasing the

productivity of the local agricultural sector.

Group 21

Automated Quality Controller for labels Supervisor : Dr. Ranga Rodrigo, Dr. Jayathu Samarawickrama

With the competitive market the quality of the labels for Label manufacturing companies is

a key factor for keeping a good customer satisfaction. In Sri Lanka currently quality

controlling of labels is solely handled by manual workers which has several drawbacks. So

the proposed solution is a fully automated vision based quality controlling system which

detects defects of the labels and keep higher quality of the product. The system captures an image of label and

compares it with the reference label and sort out the defect ones. The system is proven to have high accuracy and speed

compare to the current manual system.

Final Year Projects 2012

Group 22

Autopilot System for a fixed wing UAV Supervisor : Dr. Rohan Munasinghe

‘Unmanned Arial Vehicles’ or commonly known as ‘Drones’ has now become a key area

which most countries represent their technological advancement over the others. The

project is aimed at developing a fully-fledged auto pilot system which equips the aircraft

with the capabilities of following a predefined path and return it-self fully automatically

with manual overriding capabilities in highly dynamical areal atmosphere which must be

mitigated with quick but smooth response by not allowing the air plane to stall it-self. This will be based on ‘Arduino’

platform which will interconnected with IMU, GPS, Air Speed Sensor, Tx, Rx units with motor controlling.

Group 23

Augmentative and Alternative Communication Learning Platform

and Therapeutic Device Supervisor : Dr. Nuwan Dayananda

Augmentative and alternative communication is any method of communication used by

those with permanent speech disability. This platform together with the device functions as

a multistage speech generating device in Sinhala and Tamil which enables users to learn

artificial speech and use it in their day to day communication needs. The platform and device runs on the ANDROID

operating system, enabling speech synthesis using a storage containing a wide array of tones combining into speech

stages, advancing up to a text to speech platform which can be used for speech therapy and artificial speech generation.

Group 24

Hardware Implementation of Linear Turbo Equalization based

Uplink Receiver for LTE-Advanced Supervisor : Dr. Chandika Wavegedara Dr. Ajith Pasqual

LTE-Advanced is the latest mobile communication standard to implement. Turbo

equalization based uplink receivers are not yet implemented for LTE-A due to their

hardware complexity. We modify the existing turbo equalization based uplink receiver

scheme with 2x2 MIMO and 64QAM according to LTE-A standards in order to achieve hardware compatibility. Iterative

LMMSE equalization and turbo decoding is employed to improve the accuracy with less hardware complexity. We

introduce parallelization and estimations to further reduce hardware complexity & resource utilization.

Final Year Projects 2012

Group 25

Interactive surface using image processing techniques Supervisor : Dr. Chulantha Kulasekere

Usage of multimedia for learning purposes has become a vital requirement in present

context. Our product is an inexpensive novel solution for using multimedia in very effective

way. Our solution occupies image processing techniques in order to make any surface into

an interactive one. By using it an user can use drawing, pointing, scrolling and sliding

functionalities using his fingers. We have used the OpenCV vision library for our algorithm and implemented it using

Java. Our product is not constraining user to a fixed screen size, he can adjust it within given maximum range. We have

used skin detection algorithms along with our tuned skin model to detect skin.

Final Year Projects 2012

Floor Plan

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6,9,13,17,19

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Final Year Projects 2012

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