2. Introduction
In today’s world of busy time schedules people mostly
students, patients are facing many problems in tracing the
faculty members and doctors in universities, schools,
colleges, hospitals etc.
In order to overcome this problem we have come up with a
new solution entitled “Personnel Presence Information
Dissemination System” which is an amalgam of small
systems working independently and internetworked so as to
curb the problems in detecting the presence of a person.
The given system is a non-invasive approach in the
detection of a faculty personal that will help the students
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3. Principle of Working
The heart of any system is the processing unit which
controls the working of various sensors and hardware
components.
In this system we are using the Arduino Duemilanove as the
processing unit.
The Arduino Duemilanove ("2009") is a microcontroller
board, based on the ATmega168 or ATmega328.
Arduino is an open-source electronics prototyping platform
based on flexible, easy-to-use hardware and software.
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4. ... (Contd.)
In our work, the Arduino Duemilanove microcontroller
board based on the ATmega168 or ATmega328 is
programmed as per our needs to perform the desired
operations.
The ARDUINO DUEMILANOVE Microcontroller
Development Board was selected as it satisfies our
requirements in addition to already being provided with
the class lab kit.
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5. Personal Detection Identification Technique
The faculty presence dissemination system comprises of:
a) RFID-RECEIVER, TRANSMITTER
b) Arduino Duemilanove board housing the ATMEGA 328
microcontroller IC which acts as a programming and logical
control and processing unit of the system
c) Display Unit.
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6. …(Contd.)
The RFID-Receiver receives the data sent from the
RFID-Transmitter and the processing module (Arduino
Duemilanove) then accordingly processes the data.
On the display unit it shows the present location of a
faculty person, giving the students a degree of freedom
to visit their faculty person.
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7. …(Contd.)
The system consists of radio frequency(RF) receivers
limited in range of reception at various important places
where the person has the maximum probability of
occurrence.
The person to be traced has a low power RF transmitter
normally fitted inside his key chain or wallet or even in
some ornament like Watch, Bangle, Pendant, Ear Ring
etc.
Once the transmitter (now person) enters into the
proximity of particular receiver, the receiver receives the
RF code and sends to the base station.
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8. …(Contd.)
There are three modules (LAB, CLASS,CABIN) which
lead to the department and on each module we have
placed the proximity sensor which sense the presence of
a faculty personal, their collective result is then sent to
the base station.
The base station then sends the result to the modules
through RF link between the two. Thus the student gets
the information about the presence of the faculty and
accordingly they visit the particular faculty personal.
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17. COMMUNICATION MODULE
For transmitting data from different modules to make use of
RF Module(Transmitter & Receiver).
In our project we are using two RF transmitters and four
Receivers with different carrier frequencies. Both these
Transmitter -Receiver pair operate on different frequencies
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19. WORKING OF COMMUNICATION MODULE
The RF module, as the name suggests, operates at Radio
Frequency. The corresponding frequency range varies
between 30 kHz & 300 GHz.
In this RF system, the digital data is represented as
variations in the amplitude of carrier wave. This kind of
modulation is known as Amplitude Shift Keying (ASK).
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20. …(contd.)
Transmission through RF is better than IR (infrared) because:
a) Firstly, signals through RF can travel through larger
distances making it suitable for long range applications.
Also, while IR mostly operates in line-of-sight mode, RF
signals can travel even when there is an obstruction
between transmitter & receiver.
b) Next, RF transmission is more strong and reliable than IR
transmission. RF communication uses a specific frequency
unlike IR signals which are affected by other IR emitting
sources.
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21. …(contd.)
This RF module comprises of an RF Transmitter and an RF
Receiver. The transmitter/receiver (TX/Rx) pair operates at
a frequency of 434 MHz (Depends upon the carrier
Frequency).
An RF transmitter receives serial data and transmits it
wirelessly through RF through its antenna connected at
pin4.
The transmission occurs at the rate of 1Kbps-10Kbps. The
transmitted data is received by an RF receiver operating at
the same frequency as that of the transmitter.
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25. PROCESSING MODULE
The Processing Module of an electronic assembly is a
printed circuit board which holds many of the crucial
components , as the central processing unit of the system
and memory, and provides connectors for other peripherals,
together with thousands other custom components.
The Processing Module used in our system is a
microcontroller board named, Arduino Duemilanove based
on ATMEGA 328
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27. ...(contd.)
In our system we use LED text display to display the
information about the presence of a faculty personnel.
A text display is an electronic alphanumeric display device
that is mainly or only capable of showing text, or extremely
limited graphic characters.
There are several ways to form text for display. A segment
display uses lines, while a dot-matrix display uses a grid of
dots, and both of these are seen in LCD, LED, VFD, and
vane/disc types.
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29. SOFTWARE DESIGN
(a)Algorithm:
Step1: start
Step2: get the input from receiver
Step3: is receiver1 ON
Step4: If YES, display IN
Step5: go to step 2 to get next value
Step6: if NO, is receiver 2 ON
Step7: if YES, display class
Step8: go to step2 to get next value
Step9: if NO, is receiver3 ON
Step10: if YES, display lab
Step11: go to step2 to get next value
Step12: if NO, display out
Step13: go to step2 and again repeat the process.
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31. Conclusion and scope for future work
From our Project it can be concluded that full automation is
required for making PERSONAAL PRESSENCE
INFORMATION DISSIMINATION SYSTEM in order to take
good care for the detection of a particular personal.
In a country like India, where the increase in population is
at its peak and economic condition is in development stage
and detecting the personal at a particular time is not
automated. So, the proposed project takes this problem into
account and uses the existing infrastructure to full fill the
criteria.
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32. ...(contd.)
In this project, the primary aim is to gather the information
of the particular personal at a particular place leading to
particular destination.
The system we have designed is only for single person, it can
be designed for many personals using different wireless
technologies.
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