Bluetooth Enabled Smart Device for
Attendance Monitoring with Feedback
System
Nowadays in the modern trend Communication t...
Block Diagram
Attendance Side:
Personal Computer
Bluetooth Module

RS232

+5V Power Supply

89. Rangarajapuram main road,(...
Hand Held Device (Person/Student Side):
Bluetooth Module

Signal Converter
Circuit

+5V Power Supply

PIC16F877
Microcontr...
BLUETOOTH TECHNOLOGY

Bluetooth technology is an industry wireless specification standard
for use in various devices for s...
be on the same frequency at the same time. This same technique minimizes the risk that portable
phones or baby monitors wi...
•

Connecting devices without the need for cables

•

Becoming more integrated within laptops, mobile phones, handhelds,
a...
•

Connecting devices without the need for cables

•

Becoming more integrated within laptops, mobile phones, handhelds,
a...
Upcoming SlideShare
Loading in...5
×

FINAL YEAR PROJECTS ABSTRACT ECE-Bluetooth attendance monitoring system

851

Published on

Bluetooth Enabled Smart Device for Attendance Monitoring with Feedback System


Nowadays in the modern trend Communication takes place through wireless only. Mostly is Wireless Communications there will be a Transmitter unit and a Receiver unit and the type of transmission can be Infrared, RF, Bluetooth etc. Here, the problem is the communication is Simplex communication i.e., One end we can transmit data and on the other end we can receive data. No duplex communication is possible. To overcome this factor, we can develop a project in which we can send and receive data in wireless.
This will be useful for many applications such as in hospitals, schools, colleges etc. Here in our project we have an idea to have an Hand held device in which we have a transmitter and a receiver unit fixed in that device where we can enable the transmitter, Send a message and deactivate it. Then Activate the receiver unit wait for the acknowledge or for the data to come in and deactivate it. The other side also has a similar unit.
For the Hand Held device we have decided to use a pic microcontroller with LCD Display and Keypad.
We have decided to use a Bluetooth Transmitter and Bluetooth Receiver unit whose frequency is 2.4Ghz.

Published in: Education, Technology, Business
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
851
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
40
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Transcript of "FINAL YEAR PROJECTS ABSTRACT ECE-Bluetooth attendance monitoring system"

  1. 1. Bluetooth Enabled Smart Device for Attendance Monitoring with Feedback System Nowadays in the modern trend Communication takes place through wireless only. Mostly is Wireless Communications there will be a Transmitter unit and a Receiver unit and the type of transmission can be Infrared, RF, Bluetooth etc. Here, the problem is the communication is Simplex communication i.e., One end we can transmit data and on the other end we can receive data. No duplex communication is possible. To overcome this factor, we can develop a project in which we can send and receive data in wireless. This will be useful for many applications such as in hospitals, schools, colleges etc. Here in our project we have an idea to have an Hand held device in which we have a transmitter and a receiver unit fixed in that device where we can enable the transmitter, Send a message and deactivate it. Then Activate the receiver unit wait for the acknowledge or for the data to come in and deactivate it. The other side also has a similar unit. For the Hand Held device we have decided to use a pic microcontroller with LCD Display and Keypad. We have decided to use a Bluetooth Transmitter and Bluetooth Receiver unit whose frequency is 2.4Ghz. 89. Rangarajapuram main road,(Near SBI Bank),Kodambakkam Chennai-600024, http://www.maastechindia.com
  2. 2. Block Diagram Attendance Side: Personal Computer Bluetooth Module RS232 +5V Power Supply 89. Rangarajapuram main road,(Near SBI Bank),Kodambakkam Chennai-600024, http://www.maastechindia.com
  3. 3. Hand Held Device (Person/Student Side): Bluetooth Module Signal Converter Circuit +5V Power Supply PIC16F877 Microcontroller Keypad 89. Rangarajapuram main road,(Near SBI Bank),Kodambakkam Chennai-600024, http://www.maastechindia.com LCD
  4. 4. BLUETOOTH TECHNOLOGY Bluetooth technology is an industry wireless specification standard for use in various devices for short-range communications. As a radiobased technology it allows devices to share information over a maximum range of 10 meters. Bluetooth enables mobile computers, mobile phones, portable handhelds, and the Internet to “talk the talk” without cables. With bluetooth, devices don't need to be 'looking' at each unlike other wireless technologies (i.e. infrared). As long as two bluetooth devices are close enough to each other, it’s possible to make a connection. With bluetooth technology getting connected takes on a whole new meaning. Bluetooth communicates on a frequency of 2.45 gigahertz, which has been set aside by international agreement for the use of industrial, scientific and medical devices (ISM) A number of devices that you may already use take advantage of this same radio-frequency band. Baby monitors, garage-door openers and the newest generation of cordless phones all make use of frequencies in the ISM band. Making sure that Bluetooth and these other devices don't interfere with one another has been a crucial part of the design process. It is unlikely that several devices will be on the same frequency at the same time, because Bluetooth uses a technique called spread-spectrum frequency hopping. In this technique, a device will use 79 individual, randomly chosen frequencies within a designated range, changing from one to another on a regular basis. In the case of Bluetooth, the transmitters change frequencies 1,600 times every second, meaning that more devices can make full use of a limited slice of the radio spectrum Since every Bluetooth transmitter uses spread-spectrum transmitting automatically, it’s unlikely that two transmitters will 89. Rangarajapuram main road,(Near SBI Bank),Kodambakkam Chennai-600024, http://www.maastechindia.com
  5. 5. be on the same frequency at the same time. This same technique minimizes the risk that portable phones or baby monitors will disrupt Bluetooth devices, since any interference on a particular frequency will last only a tiny fraction of a second. When Bluetooth-capable devices come within range of one another, an electronic conversation takes place to determine whether they have data to share or whether one needs to control the other. The user doesn't have to press a button or give a command -- the electronic conversation happens automatically. Once the conversation has occurred, the devices -whether they're part of a computer system or a stereo -- form a network. Bluetooth systems create a personal-area network (PAN), or piconet, that may fill a room or may encompass no more distance than that between the cell phone on a belt-clip and the headset on your head. Once a piconet is established, the members randomly hop frequencies in unison so they stay in touch with one another and avoid other piconets that may be operating in the same room. Most of the time, a network or communications method either works in one direction at a time, called half-duplex communication, or in both directions simultaneously, called full-duplex communication. A speakerphone that lets you either listen or talk, but not both, is an example of half-duplex communication, while a regular telephone handset is a full-duplex device. Because Blue tooth is designed to work in a number of different circumstances, it can be either half-duplex or full- duplex. Benefits Depending on your needs and the blue tooth enabled device, you can hope to gain several benefits from using blue tooth technology in your environment. Some of the benefits are: 89. Rangarajapuram main road,(Near SBI Bank),Kodambakkam Chennai-600024, http://www.maastechindia.com
  6. 6. • Connecting devices without the need for cables • Becoming more integrated within laptops, mobile phones, handhelds, and many other devices • Reduced power consumption • Industry wireless communications standard 89. Rangarajapuram main road,(Near SBI Bank),Kodambakkam Chennai-600024, http://www.maastechindia.com
  7. 7. • Connecting devices without the need for cables • Becoming more integrated within laptops, mobile phones, handhelds, and many other devices • Reduced power consumption • Industry wireless communications standard 89. Rangarajapuram main road,(Near SBI Bank),Kodambakkam Chennai-600024, http://www.maastechindia.com

×