Design and Construction of a College Ringer
Chapter One
OBJECTIVE OF THE STUDY
This project is aimed at producing a cheap and reliable device with the aim of designing and constructing an electronic device capable of monitoring the time table schedule of a school and ring the bell for each class in order to sustain the adequate, timely and indispensable management of time for the continuous flow of activities in the school. As well an SMS notification system for subject teachers. Using the robust available GSM technology. The system will run round the clock regardless of power outage as a backup battery will be incorporated in the design.
CHAPTER TWO
LITERATURE REVIEW
INTRODUCTION
A bell is a percussion instrument used in schools and colleges that indicates the students when it is time to go to the class in the morning and when it is time to change classes during the day. No other instrument can do such a work. So it is an important instrument in both primary and secondary schools and even in the industries and other businesses where the bell timer plays a critical role throughout the day. Bells were known in China before 2000 BC and in Egypt, India, Greece, Rome, and other ancient cultures. From earliest times, they were used as signalling devices, as ritual objects, and as magical, often protective, amulets (often hung in doorways or around the necks of animals).
Clock towers can be heard over long distance which was especially important in the time when clocks were too expensive for widespread use. And also due to literacy awareness the number of colleges, schools and institutions are rapidly increasing. At present bells for periods in schools are operated manually. After every class, one employee is engaged into operating the bell. Automatic college bell helps us to avoid this. This design takes over the task of ringing the bell in colleges as the bell would ring automatically at the schedule time. It has a Real Time Clock (DS1307) which tracks over the real time. This is very wonderful design to control the working of college bell.
RELATED WORKS
The world over the decades has made considerable advancement in automation; automation is employed in every sector whether it is home or industry. Here a new and inexpensive design is being presented. This design finds a tremendous use at primary and secondary school levels as well as in colleges where the teaching sections can span over eight periods including breaks. The advantage of this design is that the bell rings at the start of each period without any human intervention to a great degree of accuracy and hence takes over the manual task of switching on/off the college bell with respect to time. It uses Real Time Clock (DS1307) which tracks the real time. The scheduled time results are compared with that of a clock, however, some drift is noticed, which is negligible. The microcontroller AT89S52 is used to control all the functions, it gets the time through the keypad and stores it in its memory. When this programmed time equals the real time then the bell is switched on via a relay for a predetermined time. The bell ringing time can be edited at any time, so that it can be reused again and again at normal class timings as well as at exam times. Also it can be made password protected so that no unintended person can operate this system except for the operator. For this a microcontroller has to be programmed using the C language or assembly language for controlling the circuit [1].
In market there many digital clocks available with bells but rings only at specific time. For e.g. Alarm Clock and some bells that ring after some time intervals and that cannot stop after specific time. For e.g. Musical Clock But all these limitation have been removed by our project. It rings only according to our college time table. The Project developed in [2], takes over the task of Ringing of the Bell in Colleges. It replaces the Manual Switching of the Bell in the College. It has an Inbuilt Real Time Clock (DS1307 /DS 12c887) which tracks over the Real Time. When this time equals to the Bell Ringing time, then the Relay for the Bell is switched on. The Bell Ringing time can be edited at any Time, so that it can be used at Normal Class Timings as well as Exam Times. The Real Time Clock is displayed on LCD display. The Microcontroller AT89S52 is used to control all the Functions, it get the time through the keypad and store it in its Memory. And when the Real time and Bell time get equal then the Bell is switched on for a predetermined time.
CHAPTER THREE
DESIGN AND CONSTRUCTION PROCEDURE
METHODOLOGY
The method used in the execution of this project comprises the combination of serial communication protocols, signal processing, programming logics with embedded system. In other to establish the aim of the project these methods were combined from the design stage to the construction and performance results of the system. Using carefully selected materials and software implementation to drive the complete system as seen in the final construction. This chapter entails the design procedure of the system detailing the theoretical analysis, choice of components and values and construction and packaging materials. Indicating calculations, schematics and drawings
SYSTEM DECRIPTION
The circuit is divided into 8 segments: the regulated power, microcontroller unit, display, GSM module, real time clock, memory, keypad and buzzer. The college time keeper model as designed in this project, encompasses the combination of embedded technology with wireless communication over GSM network. The system works so as to provide an efficient process in school subject time schedules by ringing an alarm at the beginning of a new subject class, thereby taking a way the previous human interventions, and also to provide SMS notification via GSM modem in the system to teacher to remind him/her of a class coming up.
CHAPTER FOUR
RESULTS AND DISCUSSION
This section of the report discusses the resultant test from the design and implementation of the project, with a view to see how the implemented project meets the design specifications as well as the aims and objectives of the project.
From the design stage on Proteus Circuit Design software, the design was simulated for performance evaluations after which necessary adjustments was applied before the construction stage. On completion of the construction stages as described in chapter 3, the system was put to test to see if it performs the design specifics of level measurements.
For the prototype model of the design the test conditions and performance are as follows:
With the system packaged and set up and casing, the performance of the device is ascertained by the following processes:
CHAPTER FIVE
CONCLUSION
It can be deduced from the design and test results that the project has met its objectives to design and implement an electronic device capable of providing college time table schedule. Automatic college bell can be successfully designed and can be applicable in school and colleges as per to save manpower and also to save time it’s a cost effective project which can be built using easily available equipment and can be used in real time in the school and in the colleges this can be included in every educational institution as per the timing which can be easily reprogrammed by a common laymen and can also vary timing for some classes as per the schedule of the school. The display of time in the project also increases it effectiveness.
This project therefore as proposed provided a novel solution to the inadequacies of traditional college bell and time management. Therefore, from the results obtained, it can be concluded that the aim of this work has been practically and theoretically achieved.
REFERENCES
- Sheenu Choudhary1, Shrikant2 and Priyanka Sharma3, Automatic college bell system: International Journal of scientific research and management (IJSRM), volume 2 issue 3 March 2014 [www.ijsrm.in]Students3k.com
- Dinesh Kumar1, E Swetha2, Anuj Saxena3, Implementation Of School/College Bell Using LabVIEW: Global Journal of Advanced Engineering Technologies, Vol3, Issue3-2014 ISSN: 2277-6370208
- Abyash Gautam #1, Deepak Rasaily *2, Sejal Dahal, Microcontroller Controlled Automated College Bell: International Journal of Engineering Trends and Technology (IJETT) – Volume 32 Number 4- February 2016 ISSN: 2231-5381
- Henry Ohiani Ohize1, Elizabeth Nonye Onwuka2 and Ahmed Ibrahim; Design of Microcontroller-Based Automatic School Bell, Department of Electrical and Electronics Engineering, Federal University of Technology Minna, Niger State, Nigeria
- Butoliya, Nupur Shal, Snehal Girhepunje, Aakanksha Rannaware,Prerna Baddalwar, Vaishali Badwe Guided By Prof. S.A.Bagal Electronics and Telecommunication Engineering,Smt Rajshre Mulak College of engineering for Women, Nandanvan, Nagpur, India; Microcontroller Based Automatic College Bell With Monitoring System: International Journal of Advanced Research in Computer Engineering & Technology (IJARCET) Volume 4 Issue 2, February 2015 401 ISSN: 2278 – 1323
