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Wireless Monitoring System. Prepared By: Kopila Sharma 908-37-2749. Wireless Network System. Enables communication between two or more system . Uses standard network protocols for communication. Do not use network cabling Two types of network Infrastructure Network Ad-hoc Network .

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Wireless Monitoring System

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Wireless Monitoring System

Prepared By:

Kopila Sharma

908-37-2749


Wireless Network System

  • Enables communication between two or more system .

  • Uses standard network protocols for communication.

  • Do not use network cabling

    Two types of network

  • Infrastructure Network

  • Ad-hoc Network


Infrastructure Network


Ad-Hoc Network


Ad-hoc Network Application

  • Wireless Sensor Network.

    • Wireless Monitoring System is the results of the wireless sensor network.

      • What is Wireless Sensor Network?

        • Wireless network.

        • Consists of spatially distributed devices.

        • Uses sensors to monitor.


Sensor Nodes

  • Considered as small Computers.

  • Consists Processing Unit with limited computational power.

  • Limited Memory.

  • Communication device Usually radio transceivers.

  • Power source in the form of battery.


Benefits of Wireless Monitoring

  • Flexibility

    • Easier to upgrade and add new devices.

    • Eliminates the complexity of the system.

  • Cost

    • Reduced installation labor.

    • Easier to diagnose the efficiency of the process.


Challenges of Wireless Monitoring

  • Security and Reliability

    • Authentication.

    • Encryption.

    • Integration with Existing Systems

      • Difficult to integrate with existing system.

      • Difficult to modify.

    • Battery Life

      • Tradeoff between power consumption and amount of data collected.

      • Alternative energy are also in research.


Structural Health Monitoring

  • Wireless Monitoring is used to monitor the condition of the civil infrastructure.

  • An experiment was done by “Department of Civil Engineering, National Taiwan University, Taipei, Taiwan”.

  • Experimented with 3-story steel frame instrumented with wireless sensors for shaking table test.


Structural Health Monitoring Cont..


Structural Health Monitoring Cont..


Structural Health Monitoring Cont…


Conclusion

  • With the designed converter different sensor signals can be used as input to the wireless sensing unit for monitoring purpose.

  • For structural control purpose, one can embedded the control gain as well as the control algorithm in the sensing unit.


Thank You


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