A SECURE MONITORING SYSTEM DESIGN FOR WIRELESS SENSOR NETWORKS

Öz

Developments in cost-effective sensor architectures have made Wireless Sensor Networks (WSNs) a new and popular filed of research. A wireless sensor network is created by randomly placing a large number of limitedcapacity, low-cost, low-power sensors with a short range transmitter in an environment which is not easily accessed and mostly unsafe. WSNs are therefore used in a wide range of fields from healthcare field to military field, securing a building to pre-detection of forests fires. The detected data from an environment monitored by sensor nodes need to be analyzed and observed in many applications where a WSN is used. In this study, a safe monitoring system was developed for WSNs using TelosB sensor nodes. The data collected by sensor nodes is encrypted in 128 bit and transmitted to the server. With this safe monitoring system, detected light, humidity and temperature values from the environment are analyzed by web media and monitored by visual graphs. In addition, WSN can be monitored via mobile platforms by means of smart telephones that are increasingly used due to advancing technology.  

Anahtar Kelimeler

• Wireless Sensor Networks
• Secure Monitoring System
• TelosB

KABLOSUZ ALGILAYICI AĞLARDA GÜVENLİ İZLEME SİSTEMİ TASARIMI

Öz

Düşük maliyetli algılayıcı mimarilerindeki gelişmeler Kablosuz Algılayıcı Ağlarını (KAA) yeni ve bilinen araştırma alanı yapmıştır. Bu ağlar çok sayıda sınırlı kapasiteli, kısa mesafeli vericiye sahip, düşük güçlü ve düşük maliyetli algılayıcının kolayca erişilemeyen ve çoğu zaman güvenilir olmayan bir ortama rastgele bırakılmasıyla oluşur. Bu özelliklerin den dolayı KAA'lar sağlık alanlarından askeri alanlara, bir binanın güvenliğinin sağlanmasından orman yangınlarının önceden tespitine kadar çok çeşitli alanlarda kullanılabilmektedirler. KAA’ların kullanıldığı birçok uygulamada algılayıcı düğümler ile izlenilen ortamdan algılanan verilerin analiz edilerek gözlemlenmesine ihtiyaç duyulmaktadır. Bu çalışmada TelosB algılayıcı düğümleri kullanılarak KAA için güvenli bir izleme sistemi tasarımı geliştirilmiştir. Algılayıcı düğümlerin elde ettiği veriler 128 bit şifrelenerek sunucuya gönderilmektedir. Gerçekleştirilen güvenli izleme sistemi sayesinde ortamdan algılanan ışık, nem ve sıcaklık değerleri web ortamında analiz edilerek, görsel grafikler yardımıyla izlenebilmektedir. Bununla beraber, gelişen teknolojiyle kullanımı gittikçe artan akıllı telefonlar yardımıyla da KAA mobil platformlar üzerinden izlenebilmesi mümkün olmaktadır.

Anahtar Kelimeler

• Kablosuz Algılayıcı Ağlar
• Güvenli İzleme Sistemi
• TelosB

Kaynakça

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