REU/REV Update Paul Curtis and Vitor Weber 1 Project Description - - PowerPoint PPT Presentation

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REU/REV Update Paul Curtis and Vitor Weber 1 Project Description - - PowerPoint PPT Presentation

Apr 20, 2023 138 likes •273 views

REU/REV Update Paul Curtis and Vitor Weber 1 Project Description Android based acoustic ranging application Current Work Paul: 2 device ranging using android devices + calculations in MATLAB Vitor: Device to device communication

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REU/REV Update

Paul Curtis and Vitor Weber

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Project Description

 Android based acoustic ranging application  Current Work

  • Paul: 2 device ranging using android devices + calculations in

MATLAB

  • Vitor: Device to device communication

 Future Work

  • Expand to multiple devices for triangulation and sensor network

algorithms

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Getting Familiar With Android

Figure 1. Simple waveform generator app 3

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Ranging Strategy

Figure 2. Illustration of the two-way sensing stage in the BeepBeep ranging procedure. [1] Peng, Chunyi, Guobin Shen, and Yongguang Zhang. 4

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MATLAB Results

D=(c/2*fs)*[(nA2-nA1)-(nB2-nB1)]+K

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MATLAB Results Cont.

 July 17th, 2013

  • 24 ranging tests from .6 meters up to 2.75 meters
  • MSE = 2.912 cm

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Present and Near Future

 Current Challenges

  • Multipath effects

 Next Steps

  • Move calculations from MATLAB to Android device
  • Integrate with

Vitor’sWork

  • Look further into ultrasonic possibilities

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Server/Client App

 The app will enable android devices to send and

receive ranging data

 After ranging data is acquired by each device, all

data will be sent to one device

 The Server/Client app java code used was found

in an Android tutorial

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Server/Client App

 The Server/Client apps are capable to

communicate between two devices

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Server/Client App Current Challenges

 Allow multiple clients to communicate with

server

 Server must be able to identify which client is

sending data via time stamp and/or device ID

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Server/Client App Future Steps

 Determine what data will be passed from

ranging app and what calculations will be done at server

 Possibility of each tablet be a server/client

instead of one centralized server

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Works Cited

 [1] Peng, Chunyi, Guobin Shen, and

Yongguang Zhang. "BeepBeep: A high-accuracy acoustic-based system for ranging and localization using COTS devices." ACM Transactions on Embedded Computing Systems (TECS) 11.1 (2012): 4.

 [2]The KTS Infotech family of sites. Network Programming in

Android, 2010. Web. 2 July 2013.

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