The CMU Mobile Computers and Their Application for Maintenance
This paper describes the use of CMU’s VuMan wearable computers for maintenance of military vehicles and their communication mechanisms with the outside world. The key concepts involve: portable, hands-off access to information; mobility of users and uploading information yielding increased productivity of maintenance operation. VuMan is used as a Referential System, replacing large volumes of printed materials such as maintenance manuals. The main tasks are Limited Technical Inspections (LTI) and Trouble Shooting Flow Charts for an Amphibious Motor Vehicle. This effort included the development of the VuMan Hypertext Language (VHTL), using a forms-based hypertext paradigm that provides quick access to manuals. The VHTL considerably simplifies the task of creating document systems that integrate forms, references (hyperlinks), images and complex control structures (such as nested menus). The User Interface has been designed to provide access to the information in an intuitive and natural manner. Both the User Interface and the document structure are centered around the concept of fields. When selected by the user, these fields invoke some action, such as bringing up a menu, following a reference or toggling a check mark. The User Interface can accommodate two types of input devices: a three-button mouse and a multiposition rotary dial. Our estimate is that the time required to perform some typical Marine Maintenance procedures using VuMan will be cut in half.
KeywordsNone None Maintenance Operation Maintenance Manual Main Menu Mobile Computer
Unable to display preview. Download preview PDF.
- Akella, J., Dutoit, A. and Siewiorek, D. P., “Concurrent Engineering: A Prototyping Case Study,” Proceedings of the 3rd IEEE International Workshop on Rapid System Prototyping Research Triangle Park, N. Carolina, June 1992.Google Scholar
- Siewiorek, D.P, Smailagic, A., Lee, J.C. and Tabatabai, A.R.A., “An Interdisciplinary Concurrent Design Methodology as Applied to the Navigator Wearable Computer System,” Journal of Computer and Software Engineering, Vol. 3,No. 2, 1994.Google Scholar
- Becker, A., “High Resolution Virtual Displays,” Proc. SPIE, Vol. 1664, Society of Photooptical Instrumentation Engineers, Bellingham, Wash., 1992.Google Scholar
- Li, K.F., Hon, H.W., Hwang, M.J., Reddy, R. “The Sphinx Speech Recognition System,” Proceeding of the IEEE ICASSP, Glasgow, UK, May 1989.Google Scholar
- Rashid, R. et al. “Mach: A System Software Kernel,” COMPCON Spring’ 89, San Francisco, CA, March 1989.Google Scholar
- Kantarjiev, C.V. et al., “Experience with X in a Wireless Environment,” Proc. of the Usenix Symposium on Mobile and Location-Independent Computing, Cambridge, MA, August 1993.Google Scholar
- Smailagic, A., Siewiorek, D.P., “The CMU Mobile Computers: A New Generation of Computer Systems”, Proceedings of COMPCON’94, IEEE Computer Society Press, Los Alamitos, CA, February 1994.Google Scholar