Diseño e implementación de un prototipo de entrenamiento de telefonía móvil para aplicaciones de laboratorio de telemetría y control, usando el servicio de la red celular GSM y GPRS, mediante módems OEM programables

Abstract

The design and implementation of a training prototype mobile based on the modem Sierra Wireless Q2687RD, was developed with the aim of generating a learning tool for students of Telemetry and Control laboratory, regarding the applicability of the use of GSM and GPRS with programmable OEM modems. In the laboratory practice proposed, it’s considered since some simple applications which could develop into more complex commands, based on the programming an OEM modem using commands of Open AT platform. During the application development, the alternative inputs are via a keyboard command or by sending an SMS from a mobile phone connected to the GSM / GPRS network, which results in generating output signals that could eventually control the activation of LEDs, timers, motors, etc. The prototype hardware is based on an PCB (printed circuit board), that contains a socket for SIM card, a base for assembly / disassembly of programmable modem, keyboard input interface for the user (programmable input / output), LEDs status signaling modem, serial ports, communication antenna reception and DC power.