Telemetry and control system with GSM communications

Abstract This paper describes an electronic system for telemetry and control applications of distributed systems. It consists of a portable electronic circuit (portable module) that can be connected up to various types of sensors depending on the application to be used in each case, together with a mobile-telephony communications system. Different portable modules can be used to build up a communication network governed by a central control unit (personal computer and communications system); communication can be established from the control centre with any portable module for sending or receiving information; it is also possible to modify the application programme executed in each portable module by the teleprogramming of the microcontroller system built into the latter circuit. Two applications of the network as set up are shown: analysis and transmission of a patient's electrocardiogram and the sending of a low-resolution video signal.

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