Dissertation > Excellent graduate degree dissertation topics show

Wireless Audio Sensor Network Node Design Research and

Author: ZhaoJing
Tutor: XuZhiLiang
School: Nanjing University of Technology and Engineering
Course: Control Theory and Control Engineering
Keywords: wireless sensor network audio sensor node network protocol stack time synchronization monitoring system
CLC: TN919.8
Type: Master's thesis
Year: 2010
Downloads: 100
Quote: 2
Read: Download Dissertation

Abstract


Recently, more and more research is focused on the application of WSN in audio and video signal processing both at home and abroad. This thesis analyzes the WSN architecture in details and designs a wireless audio sensor network platform based on sound collection.It presents a self-organizing network of multi-node tree structure, as well as a compatible network monitoring system.Firstly, the thesis analyzes the WSN architecture in details, including network structure, hardware structure of nodes and the network protocol stack structure. MAC protocol, routing protocol and time synchronization mechanism are also researched.The thesis analyzes the architecture of wireless audio sensor nodes in details and introduces the detailed design of each hardware module based on the ATmega128L and CC2420 platform, especially the sensor board module. How to choose the audio sensor and the design of audio signal processing circuit are provided. Additionally, this thesis realizes a serial port and the detection of the battery’s remained energy.The thesis also analyzes the WSN protocol stack in details and improves the former protocol stack based on IEEE 802.15.4. It introduces the design process of each layer, mainly including the hardware drivers and the data receiving function in the physical layer, the CSMA/CA mechanism in the data link layer, an improved routing protocol based on the minimal jump times, the processing of collected data, as well as an improved time synchronization protocol based on DMTS.In the end, simulation and tests of the audio sensor board are carried out. The results indicate that the nodes can work steadily and sound collection can be accomplished in practice. The thesis also tests the routing algorithm. The results show that all nodes can achieve routing establishment based on the designed routing protocol and periodically collect and transmit audio data, by which further research and application with practical sound localization can be achieved.

Related Dissertations

  1. Technology for Localization Attack Detection in Wireless Sensor Networks,TP212.9
  2. Drip Irrigation Control System Based on Pulse Width Modulation (PWM),S152.7
  3. An Adaptive Processing Node Selection Based Spatio-Temporal Query Alogrithm,TN929.5
  4. Study on Time Synchronization Method for Urban Lighting Management System,TM923
  5. Application of Pure Oxygen Aeration Technology in Primary and Secondary Municipal Sewage Traetment Plant,X703
  6. The Study of Mine Gas Monitoring System Based on Wireless Sensor Networks,TN929.5
  7. The Research on Routing Protocol of Agricultural Environmental Monitoring System Based on Wir Eless Sensor Networks,TN915.04
  8. Research and Application on Reliability Technology of Mine Hidrological Monitoring System,TD742.1
  9. Moving target trajectory analysis based Intelligent Traffic Monitoring System,TP277
  10. Based on Modbus Protocol pressure medical gas distribution monitoring system development,R197.39
  11. Based on Embedded Web Server Monitoring System,TP393.05
  12. The Research on Coverage Control Algorithm in Wireless Sensor Network,TN929.5
  13. Design and Implementation of Hydrological Information Automatic Monitoring System,P335
  14. A New Rail Crack Remote Monitoring System,U213.4
  15. Research on LEACH-based Clustering Routing Protocol in Sensor Networks,TP212.9
  16. Research on the Technology of Flammable Gas Detection and Alarm,TP212
  17. Voronoi diagram of its nature and application of wireless sensor networks,TP212.9
  18. Research on Algorithms for Topology Control in Heterogeneous Wireless Sensor Networks,TN915.02
  19. Design and Study of a New Wind Generator,TM315
  20. The Research and Application of H.264 Coding Technology in the Video Monitoring System,TP277
  21. Research on Wireless Sensor Network Routing Protocols for Clustering Based on Optimization Strategy of Network Survivability Performance,TN929.5

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Image communication, multimedia communication
© 2012 www.DissertationTopic.Net  Mobile