International Research Journal of Engineering and Technology (IRJET) Volume: 08 Issue: 07 | July 2021
www.irjet.net
e-ISSN: 2395-0056 p-ISSN: 2395-0072
MOBILE PHONE DETECTOR 1 2 G.Preethi , Patcha Hinduja , Pavithra V3, Pranitha S4, Pritika K.B5 1
Assistant Professor, Department of Electronics and Communication Engineering, R.M.D. Engineering College, Tamilnadu, India 2 U.G Student, Department of Electronics and Communication Engineering, R.M.D. Engineering College, Tamilnadu, India ----------------------------------------------------------------------***--------------------------------------------------------------------ABSTRACT - Cell phones are widely used in the world. While people need to be connected to at least one another, there are situations or places where there usage is to be prohibited either thanks to security reasons or it's going to cause health hazards. Cell phone detection has been on investigation for an extended time. There are techniques which are formulated or proposed on how cell phones are often detected. Most of them use the features like sound system , RF system and customary materials of the phones and check out to seem into how they will be used as basis to detect mobile phones. This project utilizes the RF system of the telephone because the feature to be wont to detect its presence. A circuit that detects signals of the range 0.9GHz to 3GHz is employed to detect a telephone when in use. When the signal is detected, an LED blinks to point the usage of a telephone within a radius of 1.5metres. Keywords : Cell phone, LED, RF system ,CA3130IC 1.INTRODUCTION Cell phones became an integral a part of people’s lives. They are not only used for communication via short messaging service (SMS), calls, emails and internet but advanced applications like remote health monitoring systems and security systems have been integrated with mobile phones. The recent years have seen rapid advancements within the value addition applications in mobile phones like high definition cameras and high speed internet connectivity. The country has also experienced developments within the infrastructures to support the rising need of faster internet connectivity. Despite the benefits enjoyed by these advancements in mobile technology, there are threats that are posed by their usage. Company data processing has been an enormous threat within the industry where employees are ready to access sensitive company information and share with the competitors. This led to the event of telephone jammers where signal reception is totally blocked once you enter the premises. Despite personal privacy invaded by the usage of such devices, this might not put to an end the vice since mobile phones might be connected to the pc and information transferred and sent when the worker is out of the corporate premises. Criminal activities and attempted escape incidences are organized by inmates in correctional institutions through the utilization of mobile phones in such facilities. Life support machines also are sensitive to the utilization of mobile phones. The use of mobile phones in such a facility results in adverse repercussions to the lifetime of persons whose lives depend upon the right functionality of the machines. Other places are Airplanes, petrol stations, conference halls, examination halls, worship centers, etc. where the utilization of mobile phones can either cause failure of sensitive machines or may be a nuisance. 2. SCOPE OF WORK This handy telephone detector can sense the presence of an activated telephone from a distance of 1 and a half meters. It can detect the both incoming and outgoing message ,calls, and video transmission even if the cell phone is kept in silent mode. The moment the bug detects RF transmission signal from an activated telephone , the LED starts blinking until signal transmission ceases. It are often wont to detect active cell phones in hospitals, petrol pumps, court of law and military bases.
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