Rashdrive Prevention Essay

4124 Words Sep 1st, 2015 17 Pages
International Journal of Scientific and Research Publications, Volume 3, Issue 1, January 2013
ISSN 2250-3153


Designing & Implementation of Mobile Operated Toy
Car by DTMF
Sabuj Das Gupta1, Arman Riaz Ochi2, Mohammad Sakib Hossain3, Nahid Alam Siddique4
Department of ECE, University of Victoria, Canada
Lecturer, Department of EEE, American International University-Bangladesh (AIUB)
Student, Department of EEE, Chittagong University of Engineering & Technology (CUET)

Abstract- This paper advocates the operation of a toy car that is controlled by a mobile phone that makes a call to the mobile phone attached to the car. In the course of a call, if any button is pressed, a tone corresponding to the button pressed
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Other multi-frequency systems are used for signaling internal to the telephone networks a method of in-band signaling. DTMF tones were also used by cable television broadcasters to indicate the start and stop times of local commercial insertion points during station breaks for the benefit of cable companies. Until better out-of-band signaling equipment was developed in the 1990s, fast, unacknowledged, and loud DTMF tone sequences could be heard during the commercial breaks of cable channels in the United States and elsewhere [3]. The conventional wireless controlled toy car user circuits have drawbacks of limited working range, limited frequency range and limited control. However, these limitations can be overcome by using the mobile phone technologies in this purpose. It provides the advantages to control, working range as large as the coverage area of the service provider, no interference with other controllers and up to twelve controls [4].

This propeller-driven radio controlled boat, built by Nikola
Tesla in 1898, is the original prototype of all modern-day uninhabited aerial vehicles and precision guided weapons. In fact, it is among all remotely operated vehicles in air, land or sea
[5]. Powered by lead-acid batteries and an electric drive motor, the vessel was designed to be maneuvered alongside a target using instructions received from a wireless remote-control transmitter. Once in

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