An automated design, which is used for switching of college bell at regular intervals without human intervention

1. By
VAGGU SRIKANTH-13H61A04P8
UNDER THE GUIDANCE OF
Mr.P.Ramakrishna(Assoc.Prof)

2. INTRODUCTION:
 In today’s life, everyone gives importance to time. time
does not wait for anybody.
 Everything should be performed in time & accurately. Now
a day’s school or college bells are manually operated.
 Hence there is a big question of accuracy. Also there is
necessity of manpower and money.
 Hence here we should use automatic control system, which
saves our manpower and money & also gives highest
accuracy, Hence we have selected the project.

3. OBJECTIVE:
 The main objective of this project is to implement Automatic college
bell on a ARDUINO UNO Board.
 the primary objective of designing this project is to reduce the human
intervention for the purpose of manual switching operation of a bell.
 Because of this manual switching we are not sure about the accuracy of
the time.
 So, a system should be designed in such a way that it is exactly
dependent on real time clock and the switching of the bell should be
controlled automatically without human intervention.

4. What is the need of a bell?
 Generally, wherever we may go, it might be a school or an organisation
if start or stop of any process is to be conveyed to a large number of
people, a bell is used over there which signals the start or stop of any
process.
 So, simply a bell is used to give indication about the beginning or
termination of any process.
How is it operated?
 From olden days to till today we are still dependent on manual
switching operation of a bell with the help of a person.

5. Disadvantages of manual switching:
 Accuracy is reduced
 Waste of man power
 Waste of money
Need for automation:
 Increased throughput or productivity
 Improved quality or increased predictability of quality.
 Improved robustness (consistency), of processes or
product.
 Increased consistency of output.
 Reduced direct human labor costs and expenses.

6. BLOCK DIAGRAM:

7. COMPONENTS INVOLVED IN THIS DESIGN:
 PC
 ARDUINO SOFTWARE.
 ARDUINO UNO BOARD.
 BUZZER (OR) BELL.
 LCD MODULE FOR DISPLAY OF DATE AND TIME.
 POWER SUPPLY.
 LM386 AUDIO AMPLIFIER.
 SPEAKER

8. FUNCTIONING PROCESS:
 Create a new project in ARDUINO and then write the code for the
design to be implemented
 As the bell is dependent on real time clock for its functioning as per the
given schedule, firstly, we have to make use of a RTC-DS1307 module
to implement the functioning of the bell.
 Based upon the timing mode of RTC ,a schedule is assigned in the code
itself for the bell to ring at some regular intervals of time without
human intervention.
 After the code is written, check for errors and then upload it on to the
ARDUINO UNO board and verify the functioning of the designed
circuit by checking the output.

9. ADVANTAGES:
 This project can be used in educational institutes, colleges, schools.
 Automatic scheduling of bell is possible in the code itself directly.
 This project can also be used in industries.
 Human errors can be avoided.
 It is an automatic system.
 Safety is assured.
 Cost is less.

10. APPLICATIONS:
 Can be used in schools or colleges or any other organizations
 Washing machines
 Microwave ovens
 Video recorders
 Security systems
 Digital watches.

11. CONCLUSION:
 Present day ringing the bell in colleges or schools are carried out manually.
So this should be eliminated completely by making use of automation.
 The main disadvantage of this is that one person has to be alert for this and
the probability of error is more.
 To overcome this, we have decided to prepare the circuit which will be
operated automatically and the ringing of bell will start by its given time.

12. THANK YOU