buiding wireless sensor network using arduino

... shows the parameters of the optical wireless sensor network systems Figure shows the optical wireless sensor network system using CCRs 5.1 BER versus transmitted optical power Figure shows the ... p x H0 = Figure 1: Optical wireless sensor network model with CCRs performance, shorten decision time, and provide other benefits [6] Figure shows the optical wireles...

Ngày tải lên: 23/06/2014, 00:20

... sống hàng ngày Mạng cảm ứng ứng dụng nhiều đời sống hàng ngày, y tế, kinh doanh…Tuy nhiên, mạng cảm ứng không dây phải đối mặt với nhiều thách thức, thách thức lớn mạng cảm ứng không dây nguồn lượng ... hiệu lượng lĩnh vực khác Trong tương lai ứng dụng mạng cảm ứng không dây trở thành phần thiếu sống Trong đồ án giới thiệu cách tổng quan mạng cảm...

Ngày tải lên: 22/11/2012, 09:13

Ngày tải lên: 26/04/2013, 08:37

... Hierarchical Networks • Hierarchical Networks 2.4 Network Structure and Hierarchical Networks • Hierarchical Networks WIRELESS SENSOR NETWORKS 3.1 IEEE 1451 and Smart Sensors 3.2 Transducers and Physical ... Management 2.4 Network Structure and Hierarchical Networks • Multicast Systems 2.4 Network Structure and Hierarchical Networks • Hierarchical Networks 2.4 Network Structure...

Ngày tải lên: 29/06/2013, 01:27

... database • Data Displayer: This extracts data as required by the user and displays them in a table as well as evaluates the AQI for the selected area • Trend Analyser: Gets previous readings and ... sensor networks and applications, Atlanta, Georgia, USA, September 2002 [16] DeerNet, Available from: Accessed: 27 August 2009 [17] R Rajagopalan and P.K Varshney, “Data-Aggregation Techniques...

Ngày tải lên: 17/02/2014, 22:20

... privacy and trust will make wireless sensor networks a more attractive option in a variety of new arenas References [1] I F Akyildiz, W Su, Y Sankarasubramaniam, and E Cayirci A survey on sensor ... defending against DoS attacks, secure broadcasting and multicasting, defending against attacks on routing protocols, combating traffic analysis attacks, defending against attacks on s...

Ngày tải lên: 05/03/2014, 21:20

... WSN network Session keys protect NPDU from Eavesdroppers CONCLUSION Security in Wireless Sensor Network is vital to the acceptance and use of sensor networks In particular, Wireless Sensor Network ... in Wireless Sensor Networks", IEEE Wireless Communications, 2008 [4] J Granjal, R Silva, J Silva, "Security in Wireless Sensor Networks", CISUC UC, 2008 [5] Y Zou, K...

Ngày tải lên: 28/03/2014, 22:20

... respectively Then, the cluster-heads and the sink node distribute the schedules to their clustered nodes and the cluster-heads in the network, respectively In the case of the cluster-heads, the schedules ... article as: Choi and Lee: Energy consumption and lifetime analysis in clustered multi-hop wireless sensor networks using the probabili...

Ngày tải lên: 20/06/2014, 22:20

... know that the capacitance (stated in terms of the amount of charge (Q) stored at a given voltage drop (across the capacitor)) of a capacitor is given by (1) (Note that: the SI unit of capacitance ... is the farad; farad = coulomb per volt; typical capacitances are measured in microfarads or picofarads) 5.2.1 The Virtual Capacitor To implement the law of Coulomb,...

Ngày tải lên: 21/06/2014, 11:20

... CRT-based approach also in a network where nodes alternate between sleep and awake state, both reliability and energy saving can be achieved with a moderate increase in the overall complexity and with ... parameters accordingly [1] G Campobello, A Leonardi, and S Palazzo, A novel reliable and energy- saving forwarding technique for wireless sensor networ...

Ngày tải lên: 21/06/2014, 11:20

... tracking tree, the modified object tracking tree will be set as the new object tracking tree The TAP will compute the update cost for the modified object tracking tree until all nodes except the sink ... using the edge connected to the target node, but was not included in the object tracking tree If the update cost of the modified object tracking tree is lower...

Ngày tải lên: 21/06/2014, 17:20

... hear LBs from different location nodes, and 3.2.3 Channel access Relay network data exchanges can be divided into intracluster aggregation data exchanges and to relay data exchanges The aggregation ... time passed between the 3.1.3 Data transfer LocMAC base enables low-rate data exchanges between location nodes and anchor nodes Both LBs and LBAs include payload parts Uplink data can be piggy...

Ngày tải lên: 21/06/2014, 22:20

... standard could handle thousands of devices in an Asian metering product [2] N-DIMENSIONAL ADDRESSING SCHEME AND ITS ROUTING ALGORITHM (3, 255) 1023 (2, 5) 517 Figure 5: Tree-based addressing and ... TRAACS algorithm and traditional Cskip based tree-based routing algorithm for ZigBee network The Cskip algorithm assumes two network parameters, Cm and Rm A perfo...

Ngày tải lên: 21/06/2014, 23:20

... However, in many applications, the sensors are deployed randomly in and around the ROI, and oftentimes some of them are out of the communication range of the fusion center, malfunctioning, or out of ... capabilities Each cluster is in charge of the surveillance of a subregion of the whole ROI, as shown in Figure Instead of transmitting data to a faraway centr...

Ngày tải lên: 23/06/2014, 00:20