Universal Access and ATM Design Using the Virtual Build Methodology

Transcription

1 Universal Access and ATM Design Using the Virtual Build Methodology Kang Li, Calvin K.L. Or, Vincent G. Duffy, Zach Rowland Mississippi State University Center for Advanced Vehicular Systems Department of Industrial Engineering March 9, 2004

2 Background & Challenges ATMs are normally designed based on several technical and safety standards and guidelines that ensure access for diverse users. Human is not a combination of individual characteristics. Design engineers should consider how the characteristics are combined as a whole and this whole,when interacting with technology is dependent of the environment, context and situation (Hypponen et al.,1999). Conventional anthropometry are not adequate for improving the knowledge of the anthropometrics of disability (Steinfeld et al., 2002).

3 Background & Challenges The databases of the available software (for non-disability) are not adequate for disabled population since the behaviors of this special population may be different from those of non-disabled. Digitally based data collection tools can be used to obtain accurate and reliable measurement in three dimensions (Steinfeld et al., 2002). Reaching distance is not the only issue when designing ATM for disabled (CAE, 2002). Stress and fatigue during reaching should also be considered in order to provide comfort for the users.

4 Research Merits Using motion capture system with Digital Human Modeling (DHM) software benefits design engineers to examine disabilities-machine interaction. No existing anthropometric database is available to apply to the design for disabilities. Although using traditional data may be feasible for designing the products dimensions, interacting behaviors cannot be examined without using virtual build method. Subjective rating of comfort level and objective measures of low back muscle tension using EMG (Chaffin et al., 2002) can be included.

5 Simultaneously Visualize & Analyze Human-Machine Interface Integrating Motion Capture with Design Full-scale (physical) modeling provides more designspecific information than conventional anthropometry and can provide information so interaction of person and environment is easy to visualize (Steinfeld et al., 2002). Combined DHM and CAD tools can help integrate data from the anthropometric studies easily into design tasks (Steinfeld et al., 2002). Designers need direct visualization of how anthropometry affects performance (Steinfeld et al., 2002).

6 Digital Human Modeling & Ergonomics analysis Integration of Motion Capture with Computer- Based Ergonomics Analysis & Physical Mockups, NIOSH (Jaszkowiak, et al. 2002). Integration of Motion Capture with Computer- Based Ergonomics Analysis & Virtual Design, Ford Motor Co. (Brazier, et al. 2003).

7 Integrated Motion Capture System Includes Cameras, VR, CAD designs, Digital Human Models, EMG & Computerbased ergonomics analysis

8 Real-time Virtual Build Methodology ATM Tasks System requirement Expected Human Machine Interface CAD Drawings VR head-mount design immersion Actual Product Interface ATM Tasks Insert card Keypad input Withdrawal Deposit Data Motion Capture Digital Human Model ATM Design parameters Height of operable components Distances of the components and users EMG & Subjective measure Commercial Ergonomics Software Expected to create need for changes in CAD drawings and tasks Analysis during immersion

9 Summary of Contributions Development and integration of a virtual build method with real-time ergonomics analysis for disabled User s View Zone Analysis in Virtual Environment Comfort reach zone and Comfort analysis with Integrated Motion Capture System

10 Future Research Information Transaction Terminals and other telematics applications Vehicle cockpit design analysis for disabled Real-time manufacturing task design, analysis and re-design

11 References & Acknowledgements Brazier J., Tomko B., and Brow T. (2003). The car that Jill built. In 6th Annual Applied Ergonomics Conference, March 2003, Dallas, TX. Center for Accessible Environment (2002). Access to ATMs: UK Design Guidelines. Centre for Accessible Environments, London. Chaffin, D.B., Woolley, C., Martin, B., Womack, N., and Dickerson, C. (2002). Reaching and object movement capability in the spinal cord injured population. In E. Steinfeld, J. Lenker, & V. Paquet, The Anthropometrics of Disability: An International Workshop, Washington, D.C. Hypponen,H., Kemppainen, E., Gill, J., Slater, J., Poulson, D., and Ekberg, J. (1999). Handbook on inclusive design of telematics applications, Jaszkowiak, M.N., Werren, D.M., and Hudock, S.D. (2002). Ergonomic intervention for a scrap metal sorting operation. In 5th Annual Applied Ergonomics Conference, March Steinfeld, E., Lenker,J., and Paquet, V. (2002). The anthropometrics of Disability: An International Workshop. Acknowledgements Tinghao Wu, Christy Du, Pramod Jain, Jihun Kang, Arun Ramakrishnan, John McGinley, Amanda McAlpin, Vince Sanders, John Francis