Project Design Specifications—Digital Braille Watch February 17, 2010 Team: Nick Anderson, Nick Thate, Andrew Hanske, Billy Zuleger Client: Holly and Colton Albrecht Advisor: Dennis Bahr Problem Statement: To determine the time, the visually impaired currently depend on audio or tactile analog watches. However, audible watches are disruptive, while the analog tactile watches are often difficult to read and fragile. Our goal is to develop a digital Braille watch that will efficiently display the time without the issues of the current technologies. This watch should display military time, be accurate and reliable, and utilize the standard Braille numerals. Client Requirements: - Digital military time display - Silent and without vibrations - Time in standard Braille Design Requirements: 1) Design Requirements a) Performance requirements: See Client Requirements above b) Safety: All electronics must be contained and the watch must not contain hazardous materials c) Accuracy and Reliability: The watch must accurately display military time within the minute d) Life in Service: The watch must be able function continuously while connected to a power source e) Shelf Life: Not specified for prototype f) Operating Environment: The device must be able to operate reliably in a dry environment g) Ergonomics: The watch should not contain rough edges or loose components and the display surface should be easy to read h) Size: The prototype does not need to be watch-sized but should be scalable i) Weight: See Size Requirement j) Materials: The device must comprise of non-toxic components k) Aesthetics, Appearance, and Finish: The watch should be aesthetically pleasing 2) Product Characteristics a) Quantity: One working prototype b) Target Product Cost: $100 or less when mass-produced3) Miscellaneous a) Standards and Specifications: Must display time according to the standard Braille language b) Customer: The customer would like a device that physically displays the time using Braille digits c) Patient Related Concerns: None d) Competition: Audible and tactile analog watches are commercially available for the
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