Wireless Site Surveillance System
Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
In order to monitor telecommunications base stations more closely more and new sensorsare needed. Installing new sensors can however prove difficult and costly since it willmost probably include installing wiring to and from these sensors.This master thesis examines the possibility to use existing wireless technology to con-nect such sensors within a base station and to a broader surveillance system. A smallsensor node is designed, built and tested.The Mulle wireless platform is used to collect sensor data and communicate over Blue-tooth. The receiving end is an Internet connected, PAN-GW enabled unit running pythonand acting site controller.Communication is kept secure with pre-shared secrets and AES encryption, three-wayhandshakes, sequence numbering and heartbeats.Temperature and humidity is measured at very low power for proof-of-concept. Thesite controller communicates with OSS when preset thresholds are crossed.Heartbeats and watchdog timers makes the system robust and reliable.It is shown that the Mulle platform is well suited for implementing wireless batterypowered sensors using Bluetooth communication.
Place, publisher, year, edition, pages
2012. , 32 p.
Teknik, wireless sensor network, bluetooth, mulle, low power, security, telecom
IdentifiersURN: urn:nbn:se:ltu:diva-56284Local ID: d103566b-5081-4761-bb2d-3d676b510f24OAI: oai:DiVA.org:ltu-56284DiVA: diva2:1029671
Subject / course
Student thesis, at least 30 credits
Electrical Engineering, master's level
Validerat; 20120924 (anonymous)2016-10-042016-10-04Bibliographically approved