Research Symposium-2010

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Browsing Research Symposium-2010 by Subject "Automated"

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    Automated Attendance System Using Webcam Based Barcode Reader
    (Uva Wellassa University of Sri Lanka, 2010) Kulathilaka, S.H.S.; Udawatta, L.; Piyathilaka, J.M.L.C.; Ekanayake, R.M.T.C.B.; Nihmiya, A.R.
    Maintaining attendance of the employee's and hours worked require an accurate means for the effective operation of any business or government agency. So they necessitate the use of simpler and effective systems as a replacement to the existing ones according to the ongoing growth of technology. Automated attendance system using webcam based barcode reader is one of the relevant solution for existing system, which can extract and decode the sequence of the barcode on a cluttered background and store the decode value with time and date. It is composed of four functions: barcode localization from the raw image, transformation of the localized barcode, decoding the sequence and storing the decoding data with other relevant data of employer attendance. The localization method is based on detecting the areas with the maximum density difference in two normal directions. The transformation method, capable of identifying any orientation, is based on the Hough line detection method. Using a variation of the Hough transformation noise is removed and distortions are reduced. This results in a more robust barcode scanning system. The decoding method is based on mathematical modelling of the EAN-13 barcode type and the database handling method is based on the ADO.NET technology in Visual Basic for interacts with the Microsoft Access database. The algorithms used in the barcode reader have been tested on number of images with an accuracy of more than eighty present. The system finds quite an important application in Payroll calculation and also viability in commercial applications. Primary application that has focused on is to maintain attendance of employees in an office. Key words: Barcode Localization, Barcode Reorganization, Webcam, Hough Transformation, EAN-13 barcode
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    Automated Hospital Management System – Hospital Net
    (Uva Wellassa University of Sri Lanka, 2010) Amarasinghe, N.W.T.L.; Makalanda, G.S.
    Most of the people in our country get treatments from the government hospitals which are operating most of the processes manually such as making appointments, taking records of the patients, recording the history of the disease etc. It is a time consuming process where difficulties in controlling information, lack of security of personal details and record duplication occur. The automated hospital management system called "Hospital Net" was developed to solve the above mentioned problems in a government hospital. This system can handle the procedures of controlling • patients' registration, managing patient's history of diseases, recording patient's admission details, managing patient prescription details and testing details. This software has the facility to keep a unique ID number for a patient and transfer the details to relevant sections automatically. For instance an OPD doctor can receive the details of patients who are assigned to him before the patient is admitted. A nurse can check the assigned prescription of each patient with the system. Doctors can search daily diagnosis details of each patient in the ward. Both the hospital and the community will be benefitted through this "Hospital Net" since it makes the system very efficient. Key Words: Automated Hospital Management System, Hospital Net
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    Automatic Counting for Entry Point
    (Uva Wellassa University of Sri Lanka, 2010) Fairoos, M.A.; Udawatta, L.; Piyathilaka, J.M.L.C.; Ekanayake, R.M.T.C.B.; Nihmiya, A.R.
    An automated occupant counter is a device used to count the number of people walking through a door. Most of the time, this system is used at the entrance of a building so that the total number of people occupied can be recorded. This occupant counting system will be useful for many sectors. Especially, it may be important for marketing research, pedestrian traffic management, tourist flow estimation or in security application in an emergency situation and more. For example in case of an evacuation need it is possible to know how many people are trapped inside a building to execute a prompt evacuation plan. The system has two sensing elements and two signal processing channels arranged such that a PIC16F84 microcontroller produces signals of opposite polarities in the two channels. A method of monitoring a passageway and an alarm management unit associated with an integrated system are also provided. An alarm signal is delivered only in the event that the two signals of opposite polarities are cutting simultaneously. Disturbances, such as component noise, which affect only one channel cannot give rise to an alarm, nor can power supply disturbances which produce signals of the same polarity in both channels. There will be also provided an automated occupant counter system for determining a direction of travel of human including first and second human detection devices and a controller. The controller provides an output representative of a direction of travel in response to the outputs of the first and second human detection devices and then that will display on LCD. Further, there will be a rotating gate set up to control the passengers to move one by one in an overcrowded situation. Key words: Microcontroller, Occupant counter, Signal processing
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    An Autonomous Assistant Service Robot for an Office Environment
    (Uva Wellassa University of Sri Lanka, 2010) Kulathunga, A.G.R.; Udawatta, L.; Piyathilaka, J.M.L.C.; Ekanayake, R.M.T.C.B.; Nihmiya, A.R.
    Recently, Autonomous humanoid robotics technology is being expected to provide various services in human living environments. But the commercial availability of these types of robots is still not considerable, due to many unsolved problems in this research area. Self-localization and navigation of mobile robots are most challenging problems. So researchers have introduced many advanced navigation systems. This paper presents a system of pre defined map base indoor navigation robot for known environment. The robot operates on a floor tile grid and uses sensor base technique for path planning. There is an array of reflective IR sensors for tracing line and counting the grid edges. The robot considers starting position as an absolute reference point. While navigating, processing unit updates the x, y coordinates and verify with defined map, thus it can obtain accurate path to the destination. Robots' linear motion control was done by comparing speeds of the main wheels using Pulse Width Modulation (PWM) technique. A closed loop Proportional Integral (PI) control system was used to synchronize speed of dual wheels. Omni directional wheel was used to reduce slip. The destination selection and robot navigation were controlled by a control panel with a graphical display. The robot delivers documents while keeping them inside a password secured cabin. Speaking ability enhance user friendliness of robot. Further the Current Date, Time, Temperature and Location were displaying to more favorable in the office environment. The control unit consists of a set of PIC Microcontrollers which were programmed in C Language by using I2C and RS232 communication protocols. The algorithm of this robot was designed to demonstrate inside an office building. Its' maximum linear velocity is 0.26 ms-lby navigating on a 5mm grid line .The minimum position error is within one tile. In this method the navigation errors wouldn't be cumulative. Key words: Robot localization and navigation, Autonomous service robot, grid based navigation, closed loop feedback system
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    Light Intensity Controller for Tissue Culture Applications
    (Uva Wellassa University of Sri Lanka, 2010) Tharshan, K.; Udawatta, L.; Piyathilaka, J.M.L.C.; Ekanayake, R.M.T.C.B.; Nihmiya, A.R.
    Still there are a few Important sectors in our country where automation has not been adopted or not been put to a full-fledged use, because of several reasons. One such reason is high cost. Bio laboratory forms an important part of the tissue cultural sectors in our country as they can be used to grow plants under controlled climatic conditions for optimum produce, so the model of constant light Intensity instruments has been developed. By using led panel light Intensity was controlled between 0 to 1000 lux in an enclosed environment. A Microcontroller-based circuit was built to monitor the value of light of the natural environment continuously and controlled in order optimize them to achieve maximum tissue culture performance. An integrated Liquid crystal display (LCD) is also used as the real time display of data, acquired from the sensors. Also, the use of control systems (LED panels) reduces the manufacturing and maintenance costs. The design is quite flexible as the software can be changed a t any time. Constant light intensity instruments makes the proposed system to be economical, portable, power-efficient and an easy to maintain solution for tissue culture applications in biology laboratories. The main aim of implementing a constant light intensity at biology laboratory has been accomplished successfully. The prototype can measure light, using LDR. The design uses a set of PIC microcontrollers as the microcontroller was programmed in C language using a Micro C compiler. Simulations were performed in PROTEUS software. Key words: LDR sensors, LED panel, Microcontroller application processor
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    SMS Based Student Information System for the University
    (Uva Wellassa University of Sri Lanka, 2010) Jayasooriya, J.M.S.J.; Priyadarshani, W.A.S.
    This paper reviews the use of mobile phones to exchange student information via Short Messaging Service (SMS). Student Information System is a very useful application for a community like the university. Through the system students, lecturers and administrators are able to get registered user's contact telephone numbers, e-mail addresses, employer details, occupation, etc In present situation there is no any document or method which keeps university students personal details after their graduation. But there can be a number of advantages by having that kind of information system. The application receives text messages via SMS sent by users and accordingly, modifies the database and sends the results back to the original user via SMS. This Student Information System enables five operations for users. They are add own information, edit own information, search other members information, delete own information and select the required member's information from a list. System always guides the user and keeps on informing user about whether he/she has done the operation successfully or not. System is able to provide guidelines to users on how to use the system. For sending and receiving SMS a 3G modem was used and it has been interfaced with the personal computers using an SMS gateway called Ozeki. This system is a fully automated one and minimum maintenance is required. The system helps to exchange information even in the remotest locations where internet service is unavailable. Key Words: Student Information System, Automated Key words: Short Messaging Service (SMS), Student Information System, Automated