03-09-2014, 02:43 PM
CELLPHONE DETECTOR
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Abstract
The size of mobile phones is much more compact in recent trends.so it is to carry them everywhere. These cannot bedetected if they are operated in silent mode.This project is a simple cell phone detector project. This handy cell phone detector, pocket size mobile transmission sniffer can sense the presence of an active cell phone in a radius of up to 8mradius. So it can be used to prevent use of mobile phones in examination halls, confidential rooms, etc. It is also useful for detecting the use of mobile phone for Spying and unauthorized video transmission. The circuit can detect the incoming and outgoing calls, SMS and video transmission even if the mobile phone is kept in the silent mode. The moment the sniffer detects RF transmission signal from an activated mobile phone, it starts sounding a beep alarm and the LED blinks. The alarm continues until the signal transmission ceases.
INTRODUCTION
As the technologyincreases in the world using the electronic equipment’s are being used in a wrong way like, in the examination halls and confidential rooms. To avoid this we are introducing a project called CELLPHONE DETECTOR this handy, pocket-size mobile transmission detector or sniffer can sense the presence of an activated mobile cell phone from a distance of eight meters. So it can be used to prevent use of mobile phones in examination halls, confidential rooms, etc. It is also useful for detecting the use of mobile phone for Spying and unauthorized video transmission. The circuit can detect the incoming and outgoing calls, SMS and video transmission even if the mobile phone is kept in the silent mode. The moment the Bug detects RF transmission signal from an activated mobile phone, it starts sounding a beep alarm and the LED blinks. The alarm continues until the signal transmission ceases. It is also useful for detecting the use of mobile phone for spying and un-authorized video transmission. Certain places where use of mobile phones are not allowed like exam hall, temple, offices and theaters, in those places to detect and restrict the use of mobile phones this proposed system is very helpful. This must detect the incoming and outgoing calls, SMS and video transmission even if the mobile phone is kept in the silent mode. The illegal use of cell phones is a growing and dangerous problem in correctional institutions worldwide. These devices are a significant threat to prison security and circumvent the monitoring processes in prisons, while helping inmates commit new crimes both inside and outside the facility.
1 INTRODUCTION
The cell phone detector is a device that detects the presence of the cell phone by using RF signal that generate from phone. This chapter includes the design and analysis of our project.
SIMULATION
We are most familiar with cell phone active detectors. The cell phone detectors are mostly hand and pocket-size mobile transmission detectors. It can sense the presence of an activated mobile phone from a distance of eight meters. So it can be used to prevent use of mobile phones in examination halls, confidential rooms, etc. The software used for the simulation of this work is PROTUS. What was done was to use a Signal Generator to generate a frequency of 100Hzand amplitude of 1V. Since the CPU of the system would be completely utilized for higher RF signal for mobile phone. The signal was sent into the input terminal (antenna) .The LED was immediately energized indicating that the input signal activated the 555 Timer IC and this in turn shows that a mobile phone has received signal
CONCLUSION AND RECOMMENDATION
This project is very useful for the private meetings, examination hall, defense establishments, military camp, Hospitals; Petrol pumps etc., where the uses of an active Mobile Communication (GSM) device are prohibited. The system has no way of discriminating between two phones within the same frequency range. Therefore it is expected that future research will look into this areaMobile microbe is an easy and simple tool to detect the presence of mobile phones in restricted areas. It is easy to handle and very effective as an application. Mobile bug finds a lot of use.