Results 81 to 90 of about 47,192 (212)
Probe on wireless voice communication system of coal mine based on ZigBee
Gong-kuang zidonghua, 2013 For problem that existing voice communication systems usually use wired communication mode, which cannot guarantee reliability of communication when an accident happens, a kind of wireless voice communication system based on ZigBee technology was ...
XU Xiao-xiao +3 more
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Exit, Voice, and Disloyalty [PDF]
, 2013 Innomhuspositioneringssystem kan med fördel användas i många olika tillämpningar, allt från sjukhus till shoppingcenter. Denna rapport behandlar olika tekniker och lösningar för att designa ett positioneringssystem.
Helgesson, Dan, Nilsson, Emelie
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Secure and Lightweight Key Distribution with ZigBee Pro for Ubiquitous Sensor Networks
International Journal of Distributed Sensor Networks, 2013 We propose a secure and lightweight key distribution mechanism using ZigBee Pro for ubiquitous sensor networks. ZigBee consumes low power and provides security in wireless sensor networks.
Kyung Choi, Mihui Kim, Kijoon Chae
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Design and Implementation of a Testbed for IEEE 802.15.4 (Zigbee) Performance Measurements
EURASIP Journal on Wireless Communications and Networking, 2010 IEEE 802.15.4, commonly known as ZigBee, is a Media Access Control (MAC) and physical layer standard specifically designed for short range wireless communication where low rate, low power, and low bandwidth are required. This makes ZigBee an ideal choice
Patrick R. Casey +2 more
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Sistema Inteligente de Detección y Orientación de usuarios en Bibliotecas
Revista Española de Documentación Científica, 2013 Los dispositivos de identificación por radiofrecuencia (Radio Frequency IDentification, en adelante RFID) son usados desde finales de los años noventa en el entorno de bibliotecas para la gestión del inventario, control de catálogos, seguridad, préstamo ...
Bonifacio Castaño +3 more
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Gong-kuang zidonghua, 2010 In view of the problem that wireless sensor network ca't make remote transmission because of complex underground situation,the paper proposed a design scheme of mine environmental detection system based on ZigBee wireless sensor network and data radio ...
JIANG Jie, CHEN Shu-shu
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An Example and Analysis for Ambiguity Resolution in the Indoor ZigBee Positioning System
Reports on Geodesy and Geoinformatics, 2017 This paper presents ambiguity resolution in the range-based ZigBee positioning system. The system is using the phase shift measurements to determine the distances between user and anchors.
Janicka Joanna, Rapinski Jacek
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Time Segmentation Approach Allowing QoS and Energy Saving for Wireless Sensor Networks
, 2010 Wireless sensor networks are conceived to monitor a certain application or physical phenomena and are supposed to function for several years without any human intervention for maintenance.
Chalhoub, Gerard +2 more
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Techno-economical viability of cognitive solutions for a factory scenario [PDF]
, 2011 Ballon, P +8 more
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Revista Politécnica, 2015 Resumen: Zigbee es un estándar que define un conjunto de especificaciones para redes inalámbricas de sensores a corta distancia y baja velocidad de transmisión.
MARIA TARHAN +2 more
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