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The Design of System Monitoring Luminous Intensity Based on WSN

Author: CaiYin
Tutor: CaoHua
School: Huazhong University of Science and Technology
Course: Software Engineering
Keywords: Wireless sensor networks Light intensity measurement Micro operating system Simulation
CLC: TP212.9
Type: Master's thesis
Year: 2009
Downloads: 89
Quote: 0
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Abstract


Because wireless sensor networks in the military field , the field of environmental monitoring applications such great value has been extensive attention from researchers . Its large-scale , self-organization , dynamics and reliability characteristics but also fully reflects its environment used to obtain a large area , a large randomized study of data and long-term monitoring of human hard to reach areas of advantage. System design selected environmental data more common as the design of the visible light detection target , highlighting the wireless sensor network structures and implementation. Implements a wireless sensor network based environmental monitoring system proposed by the sensor nodes, sink nodes, servers , and user system architecture consisting of four layers . The system can be obtained by sensor nodes deployed in the area to be monitored within the sensor nodes rely on the unique characteristics of an automatic self-organizing sensor networks to form into ; every node will own environmental monitoring data collected is sent to the sink node ; aggregation node and then collected data from sensor nodes via a centralized gateway pooled and then sent to a base station connected to the Internet directly on your computer ; computer base station then sends the data over the sink node sent to the database server through the Internet ; case, remote users can be accessed over the network data centers , to achieve the purpose of monitoring the environment . This implementation allows the deployment of nodes is very easy to develop systems and maintain the system and very low cost , high efficiency system development . In the process of designing the system , the choice of Atmel's microcontroller and CC2420 ATmega128L produced chips such as built up a hardware platform with embedded operating system - TinyOS as the software platform for the structural components of the application NesC language as the programming language , and use TinyOS emulator - TOSSIM for system debugging, simulation nodes lights flashing , data transfer , data collection , etc., and get the collected light intensity data measurement curve for the actual study provides a great convenience.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation components,parts > Transmitter ( converter),the sensor > Sensor applications
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