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Some practical problems of communications reliability inenviromental monitoring systems

Dziadak B., Makowski L., Michalski A.

Metrology and Measurement Systems

2013

Vol. 20, nr 3

337--350

In this paper, some issues of building a reliable, distributed measurement system for monitoring of water quality in reservoir Lake Dobczyckie are presented. The system is based on a measurement station that has the shape of a floating buoy which is supposed to be at anchor on the reservoir. Wireless data transmission problems that were encountered during the development of the buoy, modeling a radio link, and measurements of actual signal strength on the reservoir are discussed. A mathematical approach to procedures of early situation assessment was conducted, and specialized procedures were designed for measurement stations of the system. It is also discussed how such computations can improve a qualitative assessment of system performance in terms of real-time messaging.

Design and Implementation of an Embedded System for Ambulatory Cardiac Monitoring

Hassan E. M. E., Mohammed K.

Journal of Telecommunications and Information Technology

2012

nr 1

23-32

Cardiac monitoring in the environment of the subject is one of the major fields of telemedicine. In this paper we present a prototype of embedded system for acquisition, storage, display on LCD or PC and transfer via GSM alarm warning in case of arrhythmias, which allows a great opportunity for rapid intervention of the physician. In terms of hardware, we have designed and implemented our system with a modular approach to facilitate development and debugging. Thus the system comprises three modules: analog module, digital module microcontroller-based for certain pretreatment, and a GSM communication module. Of course, there is appropriate software behind the material described. The system has the following features: low cost, ease to implement and versatility.

Wykorzystanie łączności GSM w systemach nadzoru nad sieciami energetycznymi

Boduch D., Szaniawski W.

Energetyka

2001

nr 7

423-428