May 11. 2013AudioDAQ:Turning the Mobile Phone’s UbiquitousHeadset Port into a Universal Data Acquisition InterfaceSonal Ve...
Sensors Integrated into the Phone✤ Accelerometers✤ Gyroscopes✤ Imagers2Saturday, May 11, 13
Sensors Integrated into the Phone✤ Accelerometers✤ Gyroscopes✤ ImagersEKG SensorAir Quality SensorSoil Moisture Sensor2Sat...
Sensors Integrated into the Phone✤ Accelerometers✤ Gyroscopes✤ ImagersEKG SensorAir Quality SensorSoil Moisture Sensor2Sat...
Mobile Phone’s Headset Port3Saturday, May 11, 13
Mobile Phone’s Headset Port3Saturday, May 11, 13
Mobile Phone’s Headset Port3✤ Mostly standardized across many mobile phone’sSaturday, May 11, 13
Existing Phone Peripheral Interfaces✤ Square card reader✤ RedEye mini4Saturday, May 11, 13
Existing Phone Peripheral Interfaces✤ Square card reader✤ RedEye mini4What works for sporadic activitiesdoes not scale wel...
What is the AudioDAQ ?5Saturday, May 11, 13
What is the AudioDAQ ?✤ A new platform for continuous data acquisition using theheadset port of a mobile phone.5Saturday, ...
What is the AudioDAQ ?✤ A new platform for continuous data acquisition using theheadset port of a mobile phone.CostSimplic...
Design✤ ① Hardware Interface✤ ② Mobile Phone✤ ③ Processor✤ ④ End User Applications6Saturday, May 11, 13
Design✤ ① Hardware Interface✤ ② Mobile Phone✤ ③ Processor✤ ④ End User Applications6Saturday, May 11, 13
Design✤ ① Hardware Interface✤ ② Mobile Phone✤ ③ Processor✤ ④ End User Applications6Saturday, May 11, 13
Design✤ ① Hardware Interface✤ ② Mobile Phone✤ ③ Processor✤ ④ End User Applications6Saturday, May 11, 13
Design✤ ① Hardware Interface✤ ② Mobile Phone✤ ③ Processor✤ ④ End User Applications6Saturday, May 11, 13
Hardware Interface (1)✤ Microphone Bias as Power Source7Saturday, May 11, 13
Hardware Interface (1)✤ Microphone Bias as Power Source7Low pass filterSaturday, May 11, 13
Hardware Interface (1)✤ Microphone Bias as Power Source7Low pass filterScaling resistorSaturday, May 11, 13
Hardware Interface (2)✤ Acquiring analog sensor data8Saturday, May 11, 13
Hardware Interface (2)✤ Acquiring analog sensor data81.2 kHzSaturday, May 11, 13
Hardware Interface (2)✤ Acquiring analog sensor data81.2 kHzSaturday, May 11, 13
Hardware Interface (1)✤ Acquiring analog sensor data9Saturday, May 11, 13
Hardware Interface (1)✤ Acquiring analog sensor data9High pass filterSaturday, May 11, 13
Capturing and Storing Data✤ iOS✤ Advanced Audio Coding (AAC) - 44.1 kHz✤ Android✤ Adaptive Multi-rate (AMR) - 8 kHz✤ Other...
Processing Sensor Data✤ Decoding✤ Edge Detection✤ Value Estimation✤ Framing11Saturday, May 11, 13
Processing Sensor Data✤ Decoding✤ Edge Detection✤ Value Estimation✤ Framing11Saturday, May 11, 13
Processing Sensor Data✤ Decoding✤ Edge Detection✤ Value Estimation✤ Framing11Saturday, May 11, 13
Processing Sensor Data✤ Decoding✤ Edge Detection✤ Value Estimation✤ Framing11Saturday, May 11, 13
Low-Power EKG Sensor (1)12✤ Block Diagram of the EKG Sensor SystemSaturday, May 11, 13
Low-Power EKG Sensor (1)12✤ Block Diagram of the EKG Sensor System16$Saturday, May 11, 13
Low-Power EKG Sensor (1)12✤ Block Diagram of the EKG Sensor System8$Saturday, May 11, 13
Low-Power EKG Sensor (2)13The AudioDAQ board interfaced with 2-lead EKG sensorSaturday, May 11, 13
Low-Power EKG Sensor (2)13EKG trace of an individualSaturday, May 11, 13
Low-Power EKG Sensor (2)13EKG trace of an individualP WaveSaturday, May 11, 13
Low-Power EKG Sensor (2)13EKG trace of an individualQ WaveSaturday, May 11, 13
Low-Power EKG Sensor (2)13EKG trace of an individualQRS complexSaturday, May 11, 13
Low-Power EKG Sensor (2)13EKG trace of an individualT waveSaturday, May 11, 13
Low-Power EKG Sensor (2)13EKG trace of an individualP PQ QR RS ST TSaturday, May 11, 13
Evaluation- System functionality and Power consumption14Phone Works Power Sourced Power Drawn Battery Capacity Battery Lif...
Evaluation- System functionality and Power consumption14Phone Works Power Sourced Power Drawn Battery Capacity Battery Lif...
Evaluation- System functionality and Power consumption14Phone Works Power Sourced Power Drawn Battery Capacity Battery Lif...
Evaluation- System functionality and Power consumption14Phone Works Power Sourced Power Drawn Battery Capacity Battery Lif...
Evaluation- System functionality and Power consumption14Phone Works Power Sourced Power Drawn Battery Capacity Battery Lif...
Evaluation- Signal Recovery and Distortion15A voltage sweep The error componentSaturday, May 11, 13
Limitation✤ Power Budget✤ Coupling of Power and Data✤ Sampling Rate16Saturday, May 11, 13
Conclusion✤ AudioDAQ✤ Low cost✤ Simple, ubiquitous and universal✤ Low-rate analog sensor data capture, storage, and delive...
Thank you for listening18Saturday, May 11, 13
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M1GP Hyeonjae Ju

  1. 1. May 11. 2013AudioDAQ:Turning the Mobile Phone’s UbiquitousHeadset Port into a Universal Data Acquisition InterfaceSonal Verma, Andrew Robinson, and Prabal Dutta発表者:浅見・川原研    M1 ジュ ヒョンジェ1Saturday, May 11, 13
  2. 2. Sensors Integrated into the Phone✤ Accelerometers✤ Gyroscopes✤ Imagers2Saturday, May 11, 13
  3. 3. Sensors Integrated into the Phone✤ Accelerometers✤ Gyroscopes✤ ImagersEKG SensorAir Quality SensorSoil Moisture Sensor2Saturday, May 11, 13
  4. 4. Sensors Integrated into the Phone✤ Accelerometers✤ Gyroscopes✤ ImagersEKG SensorAir Quality SensorSoil Moisture Sensor2Saturday, May 11, 13
  5. 5. Mobile Phone’s Headset Port3Saturday, May 11, 13
  6. 6. Mobile Phone’s Headset Port3Saturday, May 11, 13
  7. 7. Mobile Phone’s Headset Port3✤ Mostly standardized across many mobile phone’sSaturday, May 11, 13
  8. 8. Existing Phone Peripheral Interfaces✤ Square card reader✤ RedEye mini4Saturday, May 11, 13
  9. 9. Existing Phone Peripheral Interfaces✤ Square card reader✤ RedEye mini4What works for sporadic activitiesdoes not scale well to continuous sensingSaturday, May 11, 13
  10. 10. What is the AudioDAQ ?5Saturday, May 11, 13
  11. 11. What is the AudioDAQ ?✤ A new platform for continuous data acquisition using theheadset port of a mobile phone.5Saturday, May 11, 13
  12. 12. What is the AudioDAQ ?✤ A new platform for continuous data acquisition using theheadset port of a mobile phone.CostSimplicityUbiquity5Saturday, May 11, 13
  13. 13. Design✤ ① Hardware Interface✤ ② Mobile Phone✤ ③ Processor✤ ④ End User Applications6Saturday, May 11, 13
  14. 14. Design✤ ① Hardware Interface✤ ② Mobile Phone✤ ③ Processor✤ ④ End User Applications6Saturday, May 11, 13
  15. 15. Design✤ ① Hardware Interface✤ ② Mobile Phone✤ ③ Processor✤ ④ End User Applications6Saturday, May 11, 13
  16. 16. Design✤ ① Hardware Interface✤ ② Mobile Phone✤ ③ Processor✤ ④ End User Applications6Saturday, May 11, 13
  17. 17. Design✤ ① Hardware Interface✤ ② Mobile Phone✤ ③ Processor✤ ④ End User Applications6Saturday, May 11, 13
  18. 18. Hardware Interface (1)✤ Microphone Bias as Power Source7Saturday, May 11, 13
  19. 19. Hardware Interface (1)✤ Microphone Bias as Power Source7Low pass filterSaturday, May 11, 13
  20. 20. Hardware Interface (1)✤ Microphone Bias as Power Source7Low pass filterScaling resistorSaturday, May 11, 13
  21. 21. Hardware Interface (2)✤ Acquiring analog sensor data8Saturday, May 11, 13
  22. 22. Hardware Interface (2)✤ Acquiring analog sensor data81.2 kHzSaturday, May 11, 13
  23. 23. Hardware Interface (2)✤ Acquiring analog sensor data81.2 kHzSaturday, May 11, 13
  24. 24. Hardware Interface (1)✤ Acquiring analog sensor data9Saturday, May 11, 13
  25. 25. Hardware Interface (1)✤ Acquiring analog sensor data9High pass filterSaturday, May 11, 13
  26. 26. Capturing and Storing Data✤ iOS✤ Advanced Audio Coding (AAC) - 44.1 kHz✤ Android✤ Adaptive Multi-rate (AMR) - 8 kHz✤ Others✤ Adaptive Multi-rate (AMR) - 8 kHz10Saturday, May 11, 13
  27. 27. Processing Sensor Data✤ Decoding✤ Edge Detection✤ Value Estimation✤ Framing11Saturday, May 11, 13
  28. 28. Processing Sensor Data✤ Decoding✤ Edge Detection✤ Value Estimation✤ Framing11Saturday, May 11, 13
  29. 29. Processing Sensor Data✤ Decoding✤ Edge Detection✤ Value Estimation✤ Framing11Saturday, May 11, 13
  30. 30. Processing Sensor Data✤ Decoding✤ Edge Detection✤ Value Estimation✤ Framing11Saturday, May 11, 13
  31. 31. Low-Power EKG Sensor (1)12✤ Block Diagram of the EKG Sensor SystemSaturday, May 11, 13
  32. 32. Low-Power EKG Sensor (1)12✤ Block Diagram of the EKG Sensor System16$Saturday, May 11, 13
  33. 33. Low-Power EKG Sensor (1)12✤ Block Diagram of the EKG Sensor System8$Saturday, May 11, 13
  34. 34. Low-Power EKG Sensor (2)13The AudioDAQ board interfaced with 2-lead EKG sensorSaturday, May 11, 13
  35. 35. Low-Power EKG Sensor (2)13EKG trace of an individualSaturday, May 11, 13
  36. 36. Low-Power EKG Sensor (2)13EKG trace of an individualP WaveSaturday, May 11, 13
  37. 37. Low-Power EKG Sensor (2)13EKG trace of an individualQ WaveSaturday, May 11, 13
  38. 38. Low-Power EKG Sensor (2)13EKG trace of an individualQRS complexSaturday, May 11, 13
  39. 39. Low-Power EKG Sensor (2)13EKG trace of an individualT waveSaturday, May 11, 13
  40. 40. Low-Power EKG Sensor (2)13EKG trace of an individualP PQ QR RS ST TSaturday, May 11, 13
  41. 41. Evaluation- System functionality and Power consumption14Phone Works Power Sourced Power Drawn Battery Capacity Battery Life (est.)iPhone4 Yes 322!W 149mW 5254mW 35 hrNexus One Yes 168!W 267mW 5180mW 19 hrGalaxy Nexus Yes 247!W 301mW 6475mW 21 hrN900 Yes 120!W 270mW 4884mW 18 hrE71 Yes 90!W 189mW 5550mW 29 hrSaturday, May 11, 13
  42. 42. Evaluation- System functionality and Power consumption14Phone Works Power Sourced Power Drawn Battery Capacity Battery Life (est.)iPhone4 Yes 322!W 149mW 5254mW 35 hrNexus One Yes 168!W 267mW 5180mW 19 hrGalaxy Nexus Yes 247!W 301mW 6475mW 21 hrN900 Yes 120!W 270mW 4884mW 18 hrE71 Yes 90!W 189mW 5550mW 29 hrSaturday, May 11, 13
  43. 43. Evaluation- System functionality and Power consumption14Phone Works Power Sourced Power Drawn Battery Capacity Battery Life (est.)iPhone4 Yes 322!W 149mW 5254mW 35 hrNexus One Yes 168!W 267mW 5180mW 19 hrGalaxy Nexus Yes 247!W 301mW 6475mW 21 hrN900 Yes 120!W 270mW 4884mW 18 hrE71 Yes 90!W 189mW 5550mW 29 hrSaturday, May 11, 13
  44. 44. Evaluation- System functionality and Power consumption14Phone Works Power Sourced Power Drawn Battery Capacity Battery Life (est.)iPhone4 Yes 322!W 149mW 5254mW 35 hrNexus One Yes 168!W 267mW 5180mW 19 hrGalaxy Nexus Yes 247!W 301mW 6475mW 21 hrN900 Yes 120!W 270mW 4884mW 18 hrE71 Yes 90!W 189mW 5550mW 29 hrSaturday, May 11, 13
  45. 45. Evaluation- System functionality and Power consumption14Phone Works Power Sourced Power Drawn Battery Capacity Battery Life (est.)iPhone4 Yes 322!W 149mW 5254mW 35 hrNexus One Yes 168!W 267mW 5180mW 19 hrGalaxy Nexus Yes 247!W 301mW 6475mW 21 hrN900 Yes 120!W 270mW 4884mW 18 hrE71 Yes 90!W 189mW 5550mW 29 hrSaturday, May 11, 13
  46. 46. Evaluation- Signal Recovery and Distortion15A voltage sweep The error componentSaturday, May 11, 13
  47. 47. Limitation✤ Power Budget✤ Coupling of Power and Data✤ Sampling Rate16Saturday, May 11, 13
  48. 48. Conclusion✤ AudioDAQ✤ Low cost✤ Simple, ubiquitous and universal✤ Low-rate analog sensor data capture, storage, and delivery17Saturday, May 11, 13
  49. 49. Thank you for listening18Saturday, May 11, 13

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