Lessons Learned from Space Technology Development


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Lessons Learned from Space Technology Development

  1. 1.  in  Silicon  Valley
  2. 2. NASA’s Space Technology Program - Development Approach Idea Idea Idea Infusion Idea Opportunities Idea Possible Solution for NASA Mission Visions of the Future Idea Idea Possible Possible Solution Solution Does it WORK? Is it Flight Ready? Possible Directorates, Idea Solution Other Govt. Idea Idea Agencies, and Idea Industry Idea Industry Academia Gov’t Mature crosscutting capabilities Creative ideas regarding Prove feasibility of novel, early-stage that advance multiple future space future NASA systems or ideas with potential to revolutionize a missions to flight readiness status solutions to national needs. future NASA mission and/or fulfill national need. 8
  3. 3. TECHNOLOGY & INNOVATION DEFINITION FLOWDOWNNa$onal  Innova$on  Strategy   NASA  Strategic  Goals   NASA  Grand  Challenges   Space  Technology  Roadmap(s)   IPTs   Proposals,   ARC  Tech   Strategic   (Tech  Wrkg   Projects,   Areas   Ini2a2ves   Grps)   Products  
  4. 4. NASA’s Space Technology ProgramOFFICE OF THE CHIEF TECHNOLOGIST www.nasa.gov/oct 4  
  5. 5. Developing systems to monitor the health andperformance of NASA personnel and the functional status of the systems that support them
  6. 6. Physiological  Monitoring  of  Astronauts   Biotelemeter implanted in amimals, or ingested by/attached to astronauts! TriSponder! senses Body Temperature,! quickly displays! Blood Pressure, Blood pH,! Health Status. and Heart Rate. Transponder relays biotelemeter signal ! to other monitoring ECG devices. HR 87 Temp 36.8C pH 7.35 BP 125/80Physiological! Laptop!Signal Conditioner! monitors and!(PSC) acquires ECG,! analyzes!EEG, EMG, and EOG ! Physiological!(and other bio- Parameters.!parameters of interest.!
  7. 7. MONITORING Output ModuleTemperature Biosensors DEVICE (FHSS Sensor Transmitter, Respiration Datalogger, Display, etc.) Ingest Battery able Sensor Core Module Pulse Oximeter Transceiver Modules Commands Monitoring Device ECG Data & Status Electrodes Temp. ECG Bio ECG Bio Temp. ECG Bio WIRELESS Pulse Oximeter (Blood Gases) SENSORS (Transducer + Signal Conditioner + Transceiver) Pressure, Core Temp. pH, Calcium, Glucose,...
  8. 8. Fetal Biotelemetry System
  9. 9. Distributed Environmental and Physiological MonitoringHMD Environmental(TBD) SpO2 Monitor (MPM) (Nonin) •  Temp. •  Pressure •  O2 •  CO2 ECG (QRS) Head Mount Display Physiological Monitor (iPAQ) •  Body Temp. iPAQ •  Blood Pressure •  SpO2 •  Respiration RF •  Heart Rate / ECG (Proxim) •  Activity Space Station / Shuttle Scenario Server •  Data Display Server •  Data DistributionDave Williams •  Data Analysis (Laptop)Demonstration
  10. 10. PEM Personal Status PPM Comm Monitor (PSM) PCM Decision Data Controller Assistant Management PSM: Personal Status Monitor PSM: Personal Status Monitor PA: PreAmplifier S: Sensor PPM: Personal Physiological Monitor BT: BlueTooth USB: Universal Systems Buss PEM: Personal Environmental Monitor A: Actuator TM: Telemetry Transmitter Module PCM: Personal Clinical Monitor FHSS: Freq. Hopping Spread Spectrum IR: InfraRed Mem: Memory TMRx: Telemetry Reveiver
  11. 11. Space Station Intranet Prior System: Smart Health Optional link to Intranet Access Point Care Management System iPAQ SwitchBoard (SHMS) Wireless LAN (RL2, 802.11b, iPAQ Client Bluetooth) Laptop   Various Data Sources supported Client (Physiological and Environmental Sensors, Video (wired/wireless), GPS)   Various Client Devices supported Laptop Video (Pocket PCs, HMDs, Laptops, PCs) Server   Local ad-hoc Networking using iPAQ- SwitchBoard or Laptop-SwitchBoard   Ad-hoc Network can be connected to Intranet as soon as Access Point is in range, as well as InternetiPAQ Client with ECG/   Compatible with most Wireless LAN Resp. Monitor Technologies (RangeLAN2, 802.11b, iPAQ Client Bluetooth) with HMD   Low Bandwidth Requirement (128-kbps iPAQ Client with GPS-iPAQ Pulse Oximeter S-Band compatible) Environmental Monitor   Modular, Flexible, Reliable, and Secure Downlink (S-Band or Ku-Band) Internet Client Wireless Video Server Video Access Server Point Stanford University, JSC Intranet NASA Ames, . iPAQ Client
  12. 12. LIFEGUARD LifeGuard Monitoring System - Overview Nexan ECG/Repsiration SensorNexan Physiological Logger withSensor Streaming Capabilities (CPOD) Nonin Pulse BP Cuff Oximeter (SpO2) BP Monitor Nonin SpO2 Accutracker II Blood Pressure Monitor (flight qualified) CPOD Data Logger Base Station CPOD logs data. Base Station Download via or RS-232 or wireless:
  13. 13. Non-NASAApplication of SHMS:Homeland Securityand Defense NASA DART Participation
  14. 14. Test, Applications, and Integration Testing, testing, and more testing INMARSAT SATELLITE
  15. 15. EVA and IVA Physiological Monitoring •  Keep crew safe, healthy, and performing optimally •  Prevent, recognize, diagnose, and treat illness and injury   IVA – medical exams, exercise, research, fitness evaluations
  16. 16. EVA and IVA Physiological Monitoring Requirements Current  HSIR  requirements   Requirements  (Medical  Opera$ons)   Requirements  (Research)   TABLE - MEASUREMENT OF PHYSIOLOGICAL PARAMETERS Unpressurized and Ventilation Pressurized Lunar Surface Monitoring  ECG   Minimum  of  2   Holter  Monitor/ Minimum  of  2   Suit Parameter independent   Pressure Operations Operations ECG   independent   channels  for  up  to   channels  for  up   Operations 48-­‐hours   to  48-­‐hours  Breathing gas flow rate (real-time) X X X Diagnos$c  ECG   12-­‐lead  ECG  for  a  ppO 2 X X Diagnos$c  ECG   12-­‐lead  for  both   minimum  of  10  Oxygen consumption rate (real- 10-­‐30  second   sequen$al   X "snapshot"  mode,  time) minutes  that   and  10-­‐minute   employs  8  Suit pressure (real-time) X X "full  disclosure”   independent  ppCO2 (real-time) X X mode   channels  (using  a   standard  10-­‐Consumables (power, oxygen, electrode   X X Xwater, etc., real-time) configura$on)   Heart  Rate   0-­‐250  beats  per  Thermal loading to each EVA minute   Cardiac  Output     Con$nuous   Xcrewmember (calculated) Respiratory  Rate   0-­‐150  breaths  per   cardiac  output  for  Heart rate (real-time) X X minute     up  to  24  hours  Metabolic Rate (calculated) X Con$nuous  Blood   Con$nuous  Blood   Body  Temperature   84.0  °F  to  108.0  °F   Pressure     Pressure  for  up  to  Radiation Exposure Data X 24  hours  Notes: Blood  Pressure   Systolic  60-­‐250   mmHg   Body   84.0  °F  to  108.0   For suited operations, measure the parameters in gray on an individual suit basis. Temperature   °F   Diastolic  30-­‐160   For a single gas environment, ppO2 and total suit pressure are identical values and do not mmHg   require separate sensors. Otherwise Blood  Oxygen   70-­‐100%     Satura$on  
  17. 17. The Challenges EVA HR•  Maximize the comfort, ease of use, reliability, and accuracy Monitoring•  Minimize the equipments mass, volume, Requirements power, and time for set-up and use Apollo ShuttleSensors Sensors Space Station Hardware
  18. 18. Market  Survey/Lessons  Learned  • Many systems rely on perspiration/moisture• Nearby EMI can totally disrupt biomedical signals• Not all systems have local display, ensure data is actually recording• Have no buttons on the device that can be accidentally toggled• The sensor is only the front end - many other factors contribute to final signal quality• Motion artifact remains one of key problems• Wireless an option - but many technical issues remain• Some devices need attention to keeping them in place on the body• Three considerations for sensor contact to skin• Placement of sensors sometimes key• Pick a financially viable company• Get agreement on the definition of easy to don/doff
  19. 19. Future Space Medicine Health Care•  Portability and application of nano-technology•  Minimally/non-invasive, efficient diagnostic systems capable of detecting abnormal human function across all body systems•  Health care approaches capable of therapeutic intervention for a wide range of pathological and trauma scenarios
  20. 20. BAN / Wireless monitoring systems problems for acceptance Business Applications BAN Standards Technology
  21. 21. Conclusion Continue to improve the human to biomedical sensor interface!
  22. 22. Business Applications BANStandards Technology