1. INTRODUCTION 2. BLOCK DIAGRAM 3. WORKING PRINCIPLE 4. HARDWARE REQUIRMENTS

LC TANK CIRCUIT AND COLLPITS OSCILLATOR  ASTABLE MULTIVIBRATOR MONOSTABLE MULTIVIBRATOR BUFFER AND DRIVER ELECTROMAGNETIC RELAY RF TRANSMITTER  RF RECEIVER  POWER SUPPLY UNIT 5. APPLICATION 6. FUTURESCOPE 7. CONCLUSION 8. REFERENCES 

project is designed to detect the mobile phone in a closed

room / place . where as this project is aimed to detect the

mobile phone where the mobile communication is strictly prohibited like hospitals

BLOCK DIAGRAM

Astable multivibrator

CIRCUIT DUAGRAM OF MONOSTABLE MULTIVIBRATOR

BUFFER DRIVER SWITCHING MODULE

RF TRANSMITTER MODULE

RF RECEIVER MODULE

APPLICATIONSThis project is very useful for the confidential

meetings, secret occasions and other similar requirements

This can be can be used in nuclear plant Avoid any effect due to cell phone

Used in the military Camps, Defense establishments to prevent the information leaking.

So this project can be used in the hospitals to detect the mobile device

FUTURE SCOPE

the project also incorporates a vary unique feature of remote paging & indication. In this part when the project is installed on the frame of a door or entrance, It scans incoming person’s mobile and if the person is carrying an mobile phone, then instead of activating an alarm, it sends a wireless message using Infra-Red signal to a Microcontroller unit which is monitored by a person.

CONCLUSION

By using this project detect the mobile phone in a closed room / place

This project is very useful for the private meetings, defense establishments, military camp, Hospitals; Petrol pumps etc., where the uses of an Mobile Communication device are prohibited.

REFERENCESElectronic Communication Systems 2nd edittion chapter 4

[details of frequency modulation 56 page] – George Kennedy

Electronics in Industry [chapter 2 to 5 details amplifiers ,diodes, transistors page 22] - George M.Chute

Principles of Electronics[ 1 st edition Sinusoidal Oscillators – Transistor Tuned Amplifiers - Modulation and Demodulation Regulated D.C. Power Supply from chapter 4 to 7]-V.K.Mehta

http://www.electronicsforu.com/electronicsforu/lab/

http://electronics.howstuffworks.com/search.php?terms=mobile+detector