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More than 50% of the motorcycle accidents are fatal for the rider. 70% of those are due to the time needed for the emergency service to arrive at the accident. This leads us to a necessity in finding a device able to detect accidents. This document explains how to use the MPU6050 IMU sensor in an embedded device for measuring the Euler angles (roll, pitch, yaw) and also the G Forces on different axes.
Over the past few decades, MIMO-OFDM (Multiple Input Multiple Output - Orthogonal Frequency Division Multiplexing) system has become a very interesting, famous and challenging technique in a wireless environment. Once with the evolution of technology and requests for high speed communications, MIMO-OFDM systems offer: inter symbol interferences reduction (ISI), higher data rates, a very high reliability...
Multiple-Input Multiple-Output (MIMO) has become a very interesting and attractive topic in wireless communications during the past few years. This was possible due to dramatic increases in reliability, coverage and capacity as compared to single antenna solutions. Therefore, this paper deals with a introduction to MIMO systems, what MIMO systems are, how MIMO systems can be used and to present the...
This paper refers to a detailed analysis on the design and implementation of 4×1 and 8×1 microstrip patch antenna (array) of given specifications using IE3D software and a dielectric material FR4 with dielectric substrate permittivity of 4.28, tangent loss of 0.002 and height of 1.6 mm. The microstrip patch antenna array is designed for WLAN applications, at an operating frequency of 2.4 GHz with...
This paper presents the design and implementation of a remote data logger based on GPRS connection, used for weather forecasting and statistical deduction of climate. The device presented in this paper is an interface between the weather station and a remote operator. The system is based on a microcontroller, a cellular engine, an SD card and a real time clock and it is able to measure, calculate,...
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