International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 04 | Apr 2024
p-ISSN: 2395-0072
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Cellular Signal Identifier Using Operational Amplifier Dr. Ajit Kumar Patro1, Aryan Kumar2, Moudipa Mondal2, Nikhil Kumar2, Sweta Rani2 1Associate Professor, dept. of Electronics and Communication Engineering, GIET University, Odisha, India 2UG Scholar, ECE department, GIETU, Gunupur ,Odisha , India
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Abstract – Development of a Cellular Signal Identifier
The cellular signal identifier allows the use of cell phones in emergencies because it just detects the RF signals, it does not block them, except the alarm will keep beeping and the light will be continuously blinking.
enhances security and privacy. The ubiquity of cellular device has raised Cellular Device Monitoring concerns regarding their misuses in many sensitive areas, such as secure facilities, examination centers and theaters, where their usage poses security threats and invades personal privacy. To address this issue, we have developed a Cellular Signal Identifier, a compact and efficient device capable of detecting and alerting to the presence of active cellular devices within its vicinity. This paper outlines the design, construction, and testing of the Cellular Signal Identifier, emphasizing its functionality, sensitivity, and real-world applications. We also explained the implementation of a user-friendly interface that allows us for an easy configuration and monitoring. The results indicate high sensitivity and minimal false alarms, furthermore we also discuss the ethical and legal considerations associated with its use, as well as its potential impact on societal norms.
The cellular device produces RF signals which has wavelength 30Cm at 872 up to 2170 MHz, this signal has huge energy frequency and high frequency.[5]
1.1.
In 2019, Y. Gao, et al. in their paper "Mobile Phone Passive Positioning Through the Detection of Uplink Signal," states that the process of high-precision locating and, a passive way for locating the cellular device by capturing the preamble sequence which can be applied to 5G even 4G communication system [6]. In 2010, Berkeley et al. Varitronics Systems, “Cell phone Detector” these Companies produce the wolfhound cellular device detector and cellular buster. The Berkeley Varitronics systems Wolfhound cell phone detects Computers (PCs), Global System for Mobiles (GSM) and Code Division Multiple Access (CDMA), cell phone bands using RF International Journal of Engineering Research & Technology (IJERT) [7]. In 2014, Ajasa, A.A. et al. “Design and Development of a Mobile Phone Signal Detector”, has proposed in their paper that the presence of an activated cellular device can be detected by this device, which is pocket-sized cellular signal detector which can detect from a distance of one or a half meter, which can be used in preventing the usages of cellular device in confidential rooms, examination halls, [8]. In 2011, Scott, Nicholas, et al. “Study of Cellular Phone Detection Techniques”. This paper studies the techniques of detecting cellular devices. It examines about the technologies which is currently available, an already existing design which utilizes maximum discrete components, and a design by using a down converter; in conjunction with a bandpass filter [9]. In 2015, Deshpande Tamvi et al. "Active Cell phone detection and Display using Atmega-8 Microcontroller”, the paper deals with the detection of GSM signals and displaying the signals on a LCD screen with the use of an ATmega-8 microcontroller. According to it the cellular device will ameliorate to maintain the formation of security in the restricted areas to protect the breach potent data [10].
Key Words: Signal, sensitive, identifier, cellular, userfriendly, privacy, design, construction.
1.INTRODUCTION A cellular device, often referred to as a mobile device or cell phone, is a portable electronic gadget that utilizes cellular networks for communication. These devices enable users to receive phone calls, send messages, and access the internet wirelessly [1]. Concerns about using mobile phones in unapproved, restricted regions have received more attention in recent years. The inappropriate use of mobile phones by both owners and users is a major contributing factor to the rising interest [2] Not excluded are other spaces like offices, churches, and mosques, to name a few. In places such as these, mobile phone signal detection is necessary. Many ideas and innovations are done to solve this problem but all of these solutions have its own limitations and shortcoming. One of those innovations is signal jammer, it is used to prevent cellular devices from receiving RF signals [3]. When this jammer used it disables the phones for the timing it’s active because of jamming the signals. Jammer is mainly is used in such places where silence is primary thing or in such places where use of cell phones is prohibited [4]. The limitation of this jammer is that a person cannot use his/her cellular device in the case of emergencies.
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