MOBILE SNIFFER WITH PAGING

UNDER THE GUIDENESS OF : Dr. SANTHOSH KULKARNI PROFESSOR

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

APPLICATIONS This 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.

REFERENCES Electronic Communication Systems 2 nd 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 ctor

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