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NIOSH Occupational Workplace Violence Research Program: Taxicab Safety Equipment Research

NIOSH Occupational Workplace Violence Research Program: Taxicab Safety Equipment Research. Shengke Zeng, Ph.D. Biomedical Engineer (Research) Protective Technology Branch Division of Safety Research National Institute for Occupational Safety and Health szeng@cdc.gov.

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NIOSH Occupational Workplace Violence Research Program: Taxicab Safety Equipment Research

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  1. NIOSH Occupational Workplace Violence Research Program: Taxicab Safety Equipment Research Shengke Zeng, Ph.D. Biomedical Engineer (Research) Protective Technology Branch Division of Safety Research National Institute for Occupational Safety and Health szeng@cdc.gov

  2. Presentation Objectives • Project III: A Technological evaluation of camera types available for cabs and in use by cabs • Silent 911 Dialer Project

  3. Project III: Technological evaluation of camera types available for cabs and in use by cabs Objectives Technical evaluation of key types of cameras Recommend best cab cameras Approach Phase I Determine minimum technical requirements Lab and taxicab environmentbased camera tests Phase II Research for future cab camera improvements

  4. Determine Minimum Requirements for Taxi Cameras Camera parameters Minimum resolution: face recognition Minimum dynamic range: working in high-contrast lighting condition Low light performance: capability of recording in dark cab condition Lens Distortion: deteriorates face recognition Event triggering modes Necessary trigger modes for catching criminal actions (door, meter, brake, panic button, etc.) Priority of trigger modes Recording methods Minimum retained images and minimum first-in-first-out images Minimum requirement to protect Information privacy Data storage durability Minimum physical endurance requirements: Physical Impact, and Fire/ Water Resistance

  5. Lab Tests Camera functions Resolution at various luminance level Dynamic range at various luminance level Lens distortion Recording functions Trigger reliability Recording scheme Downloading easiness Data privacy protection Data storage durability Impact proof with measured force/direction Fire proof with measured temperature/duration Water proof with measured depth/duration

  6. Cab Tests Camera Face recognition in cab geometry Face recognition in cab lighting conditions Event triggers Trigger functionality in cab conditions System structure Installation easiness System durability in cab moving/vibration conditions

  7. Research for Future Improvements Real-time image transmission to remote locations Using cell phone messaging function Event triggering Necessity to add more trigger sensors in the cab Recording Optimize image recording scheme

  8. Current NIOSH Taxi Driver Safety Project “Silent 911 Dialer” Objectives A silent “Emergency Trigger” not to disturb criminals Driver dials and sends pre-recorded “panic” or “alert” messages to different phone numbers Rescuer sends silent responses to driver Methods Using cell phone to dial different numbers Press Panic button to dial/transmit emergency message Press Alert button to dial/transmit aware message Message contains instructions to use phone-number pad Rescuers use number pad to send response back to driver Vibrator in trigger conveys silent response to driver Vision 6, Inc. is collaborating with NIOSH and is modifying its current safety product line with the above NIOSH features. Applicable to convenience stores

  9. Docking Device Emergency Trigger Cell Phone “Silent 911 Dialer” Illustrations Panic button Radio Transmission Alert button Radio Receiving Vibrator Connector Taxi Cab Cellular Link Cellular Link Dispatcher/Rescuer Colleague/Family

  10. Thank you!Questions? Contact information: Shengke Zeng, Ph.D., Biomedical Engineer (Research) Protective Technology Branch Division of Safety Research National Institute for Occupational Safety and Health 304-285-6103 (office); 215-872-8939 (cell) szeng@cdc.gov Disclaimer:The findings and conclusions in this presentation have not been formally disseminated by the National Institute for Occupational Safety and Health and should not be construed to represent any agency determination or policy.

  11. “Silent 911 Dialer” Block Diagrams Docking Device Emergency Trigger Cell Phone Button Pressing Code Receiving Cell Phone Dialing Code Transmission Activate Cell Phone Transmit Message with GPS Information Enable Phone-GPS Code Receiving Cell Phone Receiving Recorder Replays Message Activate Vibrator Send Pad-Number Tones Encoding Phone Pad Number Code Transmission

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