Development of a monitoring system for efficient management of agricultural resources
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José Gañán Gómez ; A.B. Miranda ; João Paulo Turégano Caetano ; Vera Cristina de Redondo Realinho ; Ricardo Braga [1] ; S. Correia
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[1] Instituto Politécnico de Portalegre
Instituto Politécnico de Portalegre
São Lourenço, Portugal
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- Localización: VIII Congreso Internacional de Ingeniería de Proyectos: Bilbao 6-8 de octubre de 2004. Actas, 2005, ISBN 84-95809-22-2
- Idioma: inglés
- Enlaces
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Resumen
Nowadays, meteorological stations for monitoring fundamental variables such as air temperature, precipitation, wind speed or radiation, have become common place.
However, the use of soil sensors for water monitoring is rather unusual. The main decision factor in the adoption of this type of technologies is its cost, since its usefulness is almost unquestionable.
It is possible to find in the market several equipments for remote monitoring, namely through the use of GSM communications. However, for monitoring many individual points, different systems are necessary, which significantly increases the equipment final cost (GSM modem, GSM accessory and communication cost).
Another solution consists of radio communications, which allow a free communication mean (within specific parameters), where the cost of the system only includes the Radio Modem. However, to cover wider distances, it is necessary to incorporate equipment for signal retransmission, thus increasing system cost.
The solution presented in this project aims at alleviating this problem incorporating in the same system the two referred communication systems, sharing the advantages of both. A GSM system is used in a centralized point, with the advantage of long distance communication and alert capability through the use of Short Message Service (SMS). For the decentralized points of monitoring radio communication is applied, achieving a low cost communication mean for short distances.
