ELECTRONICS AND COMMUNICATION ENGINEERING SNIFFER TECHNOLOGY FOR MOBILES Under the guidance of: Presented By: Mrs. N. LAVANYA DEWKATHE DIVYA ASSISTANT PROFESSOR 197Z1A0424 Contents • Abstract • Introduction • IMEI • Designing for the sniffer 1.Sniffer base station 2.Unidirectional antenna 3.Tracking software • Working of sniffer device • Advantages • Applications • Conclusion • References ABSTRACT • For the detection of lost mobile SNIFFER plays a vital role. • The sniffer device has to be designed precisely and size should be reduced for easy mobility for the purpose of detection. • The device can be called as a mobile Base station that includes Sniffer Base station, unidirectional antenna, tracking software. • The sniffer is a small base station that includes transceiver section. INTRODUCTION • The main scope of this seminar is to detect the lost mobiles. • Each and every day thousands of mobiles get misplaced or lost,though effective way for the blocking of the lost mobile to prevent unauthorized person. • To making and receiving the calls has been done by the manfacturers of the mobile with the help of IMEI number. • The IMEI number is a unique number that is embedded in the mobile phone. • If we report our loss mobile phone than it can be uses efficiently for the detection process. • It has three major components that Play an important role detecting the Phone. IMEI • IMEI - International Mobile Equipment Identifier. • Each mobile device has a globally unique IMEI • IMEI numbering system is a 15 digits unique code that is used to identify the GSM phone • To know the IMEI number the *#06# has to be pressed, the number will be displayed in the LCD screen • When a phone is switched on, this unique IMEI number is transmitted and checked against a data base of black listed or grey listed phones in the networks EIR. • Grey listing will allow the phone to be used, but it can be tracked to see who has it(via the sim information). DESIGNING FOR THE SNIFFER The sniffer device can be called as a mobile station that includes the following important components. 1.Sniffer base station 2.Unidirectional antenna 3.Tracking softwear 1. SNIFFER BASE STATION • The sniffer is a small base station, includes transceiver section • It should operate at a frequency that is much different from the frequency of the current cell in which the operation of detection is being carried out. 2. UNIDIRECTIONAL ANTENNA: • The directional antenna acts as the eyes for the sniffer for the purpose of the detecting the lost mobile phones • Antenna is a device which works at specified frequencies range for transmitting or receiving the data signal • In general, antennas transmit power depending on lobe pattern which varies from one antenna to the other 3. SOFTWARE FOR THE TRACKING • The software is used for the tracking of the lost mobile phone • The programming is done with C or Java. However the C is most preffered as it is easily embedded with the chips WORKING OF THE SNIFFER DEVICE: • The working of sniffers is of two phases • Before sniffer increases the frequency • After sniffer increases the frequency Before and After sniffer increases the frequency ADVANTAGES • This method is used for finding the lost mobiles effectively • Cost effective • Low power consumption • Easy to design APPLICATIONS • Widely used in crowded places where there is a chance of loosing the device • Can also used to get the GPS Location of device with surrounding images and videos • Application has a feature of remotely changing the ringer mode that can also be done. CONCLUSION • The idea of development “Sniffer for the detection of lost Mobile phones” paves a way by means of which the lost mobile phones can be recovered. • Let all of us hope for the advancement of the technology in this domain. • Which will be very helpful for each and every persons who are lost mobiles. REFERENCES • R.S. Satya Sri Ambica, P. Padma Priya, Dr.N.Srinivasu, “Sniffer Technology for Mobiles'', International Journal of Engineering Trends & Technology, volume 4, issue 4-April 2013. • Puthiyavan, U. “Enhancing User Privacy-Location Based Search Using MEMD”, IEEE International Conference on Portable Information Devices 2007, May 2007, Pp-1-5 • Jordan et al, “Electromagnetic waves and radiation systems”, Printice Hall