Results 101 to 110 of about 71,979 (259)

Probe on wireless voice communication system of coal mine based on ZigBee

open access: yesGong-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
doaj  

ZigBee Radio Frequency (RF) Performance on Raspberry Pi 3 for Internet of Things (IoT) based Blood Pressure Sensors Monitoring

open access: yesInternational Journal of Advanced Computer Science and Applications, 2019
Wireless Sensor Network has grown rapidly, e.g. using the Zigbee RF module and combined with the Raspberry Pi 3, a reason at this research is building a Wireless Sensor Network (WSN).
Puput Dani Prasetyo Adi, A. Kitagawa
semanticscholar   +1 more source

Secure and Lightweight Key Distribution with ZigBee Pro for Ubiquitous Sensor Networks

open access: yesInternational 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
doaj   +1 more source

Design and Implementation of a Testbed for IEEE 802.15.4 (Zigbee) Performance Measurements

open access: yesEURASIP 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
doaj   +1 more source

Sistema Inteligente de Detección y Orientación de usuarios en Bibliotecas

open access: yesRevista 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
doaj   +1 more source

Node Design and Networking Scheme of Mine Environmental Detection System Based on ZigBee and Data Radio Station

open access: yesGong-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
doaj  

An Example and Analysis for Ambiguity Resolution in the Indoor ZigBee Positioning System

open access: yesReports 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
doaj   +1 more source

Time Segmentation Approach Allowing QoS and Energy Saving for Wireless Sensor Networks

open access: yes, 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
core  

ZigBee(2.4G) Wireless Sensor Network Application on Indoor Intrusion Detection [PDF]

open access: yes
[[sponsorship]]IEEE[[conferencetype]]國際[[conferencedate]]20150606~20150608[[booktype]]電子版[[iscallforpapers]]Y[[conferencelocation]]台灣/台北 ...
[[corresponding]]Lee,Yang-Han   +1 more
core  

Techno-economical viability of cognitive solutions for a factory scenario [PDF]

open access: yes, 2011
Ballon, P   +8 more
core   +1 more source

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