Research Symposium-2016

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Browsing Research Symposium-2016 by Subject "Automated"

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    Automated Dispensary Mechanism for Government Hospitals
    (Uva Wellassa University of Sri Lanka, 2016) Rupasinghe, C. J.; Thambawita, D.R.V.L.B.
    Dispensing medications in a hospital is a time consuming operation. In usual practice, the pharmacist need to dispense tablets and capsules with a simple tray and spatula. A typical hospital dispensary has only a few number of pharmacists causing long patient queues, the situation can be commonly experienced in most of the government hospitals in Sri Lanka. This inspired to introduce the concept of automated medication dispensing for Sri Lanka. This research introduces an automated solution for medication dispensing in outpatient dispensaries. The key objective of the study was to reduce the time consumption of drug dispensing. A desktop application was developed to generate prescriptions and an automated drug dispensing has been implemented. The solution comprised of a software artifact and an electronic hardware unit. The software tool is connected with a fingerprint reader which is used for patient registration. Patients can register with the system when he or she comes to the outpatient dispensary at first time. The pill container has three main parts: initially the upper part of the pill container is fed with tablets to be counted, and the middle part for hold some amount of pills to fetch the rotating pill catcher. Then the lower part called rotating pill catcher for catch pills one by one and carry them to the exit gate of the pill container. This pill catcher rotate with the help of a stepper motor. An infra-red sensor keeps counting the number of pills which are being released through the exit gate. If the count is equal to number ofpills in the prescription, the motored mechanism will stop. Furthermore, two mechanisms were adopted for the tablets counting process. The first mechanism is based on a vertically rotating wheel which have several openings to catch one pill at one time. The second mechanism is based on a horizontally rotating round plate which have openings to catch one pill at one time. The process which is based on the horizontally rotation plate has achieved a considerably accurate pill count by compared to the vertically rotating wheel version. It was noticed that the vertically rotating wheel model was blocked most of the times because it cannot hold exact one pill at a time. Therefore horizontally rotation plate can be introduced for as an effective pill counting mechanism. Keywords: Pill catcher, Pill fetcher, Infra-red sensor
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    Automated Oil Pumping System for Sewing Machines
    (Uva Wellassa University of Sri Lanka, 2016) Jayasundara, J.M.S.M.B.; Samanthilake, U.D.
    Various types of sewing machines are available in the apparel industry. On the surface of such a machine, there is a movable contact that touches with any other point, which need to be lubricated. Different amounts of lubricant oil are carried from the oil bath of a sewing machine and this oil should be changed time to time and usually that is done by mechanics manually. The manual way of the oil changing is a time consuming task and may require some special skills. An automated oil changing system such as implemented in this research has the ability to overcome the issue. This system consists of an oil filling system that can be operated with push buttons on a panel, as the inputs. The Arduino platform acts as the control unit while an oil pump is considered as the output. As a feature of this automated oil changing system, the oil bath can be filled automatically by pressing the buttons according to the type of the sewing machine. Different buttons available on the system enable the users to select the appropriate type of sewing machines. When the relevant push button is being pressed, input signal is received by the Arduino. The oil pump will turn on through the relay device with respect to the controlling program that has been uploaded to the Arduino. After filling the oil bath to the standard level, oil pump will turn off automatically. By using the automated system, the efficiency of the sewing machine maintenance process has significantly improved. As a result of this study, the best results were obtained in double needle machine based on the factorial analysis with multiple comparisons. Keywords: Arduino, Sewing machine, Sewing machine maintenance
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    Fuzzy Logic and Fingerprint Based System to Improve the Productivity of Teaching Process in Sri Lankan Schools
    (Uva Wellassa University of Sri Lanka, 2016) Jayawickrama, S.C.; Thambawita, D.RV.L.B.
    Education is an essential factor of life in global context. It takes a very vital role by maintaining a high literacy rate among countries in the world. Sri Lanka is a country intending to provide free education as much as possible in an efficient way. After some reforms of the education system in Sri Lanka, nowadays in school systems, there are 6 teaching hours which start from 7.30 a.m. to 1.30 p.m. The teaching hours are divided into 8 periods and organized in the daily timetable. Schools play a major role in preliminary stages of education. The deep study of the above problem has been done by analyzing the school teacher's attendance. There are some practical problems found in daily school routine by analyzing the current administration process of Sri Lankan schools. A computer-based approach can be designed to overcome this problem by designing a system. The productivity of the school can be improved by this approach and utilizes the teacher's maximum potential. A Fuzzy logic and fingerprint-based system has been done to improve the productivity in Sri Lankan schools. Currently, there are two main problems of assigning teachers for a free period and generate a quality timetable in Sri Lankan schools'. The fuzzy and fingerprint-based system can mark the teacher's attendance with the available period of the day and send some notification S.M.S. to the teacher. The system that has been designed is able to find the best-matched teacher among others to assign for free period. In addition, the timetable generation problem also can be solved by generating the given number of timetable and select the best effective teacher among others. The system were tested by teachers by assigning some real data and found the speedup is achieved by the system is more than 20 times. The automated timetable scheduling also made the process very faster than the existing methods around 100 times. The teacher who has done testing highly recommended the system for their schools and they confirm that the system will make their task easy. Keywords: Fuzzy, Education system, Fingerprint
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    Home Automation System
    (Uva Wellassa University of Sri Lanka, 2016) Somasiri, K.G.H.A.; Wanniarachchi, W.K.I.L.
    Home automation refers to the automatic and electronic control of household features, activities, and appliances. Some components of an automated home may include the centralized control of security locks on doors and gates, appliances, windows, lighting, surveillance cameras and HVAC systems (Heating, Ventilation and Air Conditioning). Most existing advanced home automation systems require a big and expensive change of infrastructure since majority of them rely on wired communication. So it is required to change the entire wiring system of the house or wire again for the new home automation system. Obviously, wireless systems may be reduce the burden. And most of the existing systems are only capable of turn ON and OFF the home appliances but do not facilitate to see the states of the load in real time. The main objectives of the research are to design and implement a home automation system that is capable of controlling most of the house appliance wirelessly through a user-friendly web interface and indicate the status of them individually while eliminating the necessity of re- wiring. Any PC or mobile that has internet facility can be used to control it. And also to show the real time status on the web page. In addition, this home automation system is capable of turn on and off lights, control different appliance connected to wall plugs, door locking and unlocking, Shading Level Control and monitor the status. Central control unit required to be connected to the internet all the time since a web server is run by an Arduino Ethernet shield attached to it. All the sub-units are connected to main unit wirelessly via RF transceivers and they communicate both directions. The system was successfully implemented and tested. Keywords: Automation, Surveillance, HVAC, Ethernet shield, Transceivers
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    Two-Wheeled Self Balancing Robot
    (Uva Wellassa University of Sri Lanka, 2016) Samarathunga, S.M.B.P.B.; Wanniarachchi, W.K.I.L.
    This paper presents a method to design and control a two-wheeled self-balancing robot by focusing on hardware description, Complimentary filter algorithm, system modelling and Proportional-Integral-Derivative (PID) back stepping controller design. In the system, signals from the digital Gyro sensor are filtered by a Complimentary filter before being fed to the Proportional-Integral-Derivative back stepping controller. The objectives of the proposed controller is to stabilize the robot while trying to keep the motion of robot to any direction. By experimenting, the values of Proportional-Integral-Derivative parameters such as, Proportional Gain Constant, Derivative Gain Constant and Integral Gain Constant have been obtained and applied for the Arduino board. The special software was complied to convert the digital data from the accelerometer to an acceleration magnitude vector. The magnitude is then compared to a predetermined mathematical function to infer the angle of tilt of the platform. The angle of tilt is then converted to angle of rotation for the gear motors to act on. Complimentary filter is used to filter the gyro data in order to reduce noise, drift, and horizontal acceleration dependency, for the fast estimation of angle. It was noticed that this approach promises much less lag than the low-pass filter alone, and not very processor-intensive. Tuning for Proportional-Integral-Derivative controller is depending upon the physical properties of the robot and the battery power, due to those reasons tuning the controller becomes a difficult task. Experimental results shows that the platform performed as expected. The two-wheeled robot was able to move towards any direction while keeping its balance. Keywords: Complimentary filter, Gyro sensor, Arduino board, Accelerometer, Proportional gain constant
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    Widespread Emergency Response System in Colombo District
    (Uva Wellassa University of Sri Lanka, 2016) Tamari, H.V.; Ihalagedara, I. K. K. B.
    Majority of fire emergency and rescue services struggle with the management due to the absence of efficient systems. In the current process of fire emergency and rescue management service, several issues have been identified. Therefore, the present study is suggested to overcome identified inconveniences by developing an efficient & effective automated system to manage time, resources and make correct & timely decisions. Data was collected from the both people who get and don't get the service from this department. Another new set of issues that contains in the current service were identified through the collected data. A method; Widespread Emergency Response System was developed to reengineer the current process using information technology. The objective of the research was to measure the effectiveness of the widespread emergency response system for Fire Rescue and Emergency Service. The literature survey was carried out in order to identify existing methods of controlling emergencies and understand their positive and negative features. Identified factors were applied to the proposed system. The system was developed with three mobile applications and controlled web application. A system which provides facilities to send emergency request with selecting emergency type was developed and after controlling process start user could view the route map and contact the service center. Control room officer assign the task through the system and allocated officer can view their task through the application. The system architecture was designed. The system was functional wise tested according to the test cases created. By using project network techniques, the collected data was analyzed from both current and developed systems. Overall and average values were used to determine more effective method. The results indicated that developed system has shown the less value. This system can be further developed and a method can be developed to find the location from the normal phone. Keywords: Rescue, Automated system, Project network techniques