A novel secure remote device access procedure and control system is presented in this paper. The user can send DTMF tones to access the control panel of the robot, which is connected to a GSM module. The DTMF tones can be sent by any cellular phone with any existing operator. The advantage of this system is the use of GSM technology for communication and any GSM mobile phone can be employed. Fu...

introduction:  the  use  of  mobile  communication  systems  has  dramatically  increased  over  the  past  decade. although many studies have been performed to determine the effect of radio frequency (rf) but  less attention has been paid to the possible biological impact of exposure to extremely low frequency  (elf) components.   the objective of this study is two folds. one is to design the ...

Meshed wireless back-haul networks are seen as an affordable technology to bring Internet connectivity into rural and previously unconnected regions. To date, the main focus is to provide access to classical services such as the WWW or email. Access to such services requires the users to use a personal computer or a recent smart phone. Especially in developing regions, the prevailing end user d...

This project is developed with aims to improve home security systems available in current market. This project claims to produce a prototype camera and global system for mobile communication (GSM) interfacing system for home security surveillance. This system uses two sensors, namely ultrasonic and passive infrared receiver (PIR). The ultrasonic sensor is used to detect movement of objects and ...

In this report we examined the effects of a discontinuous radio frequency (RF) signal produced by a GSM multiband mobile phone (900/1,900 MHz; SAR approximately 1.4 W/kg) on Drosophila melanogaster, during the 10-day developmental period from egg laying through pupation. As found earlier with low frequency exposures, the non-thermal radiation from the GSM mobile phone increased numbers of offsp...

Exposure assessment is a crucial part in studying potential effects of RF-EMF. Using data from the HERMES study on adolescents, we developed an integrative exposure surrogate combining near-field and far-field RF-EMF exposure in a single brain and whole-body exposure measure. Contributions from far-field sources were modelled by propagation modelling and multivariable regression modelling using...

Mobile phone already allowed to be used in some commercial airlines and the first standard to be deployed is 1800MHz GSM band. After Many studies and debate, the regulation authorities have spelled out the requirement for picocell and mobile phone to be used in aircraft so as not to be interfered with avionics system in the air. The main objective is to limit the mobile phone at the lowest tran...