Zero-Power, Interactive Document Viewer System Program
Abstract
This report describes the development of an ultra-low/no-power, wireless, user-interactive, document viewer. The system features a zero-power, pseudo-color, VGA-resolution display manufactured by Kent Displays, Inc. (KDI). Honeywell designed and built the remainder of the Zero Power Display (ZPD) system: interface electronics, application software, housing, and user interface. After image has been loaded onto this 133 dpi, Cholesteric, Liquid Crystal Display (CH-LCD), it remains indefinitely without a power source. The ZPD consumes power only during the time required to refresh the display (maximum refresh rate of 5 Hz). Intelligent system power management is maintained by a microcontroller powered by batteries replenished by a solar cell that is integral to the ZPD housing. The active area of the display is 4.8 x 3.6 in. The ZPD's graphical user interface in enabled by the softkeys that surround the display, packaged in its ruggedized, lightweight (<1.25 lb.) housing. Textual or graphic files in JPEG, BMP, PDF, HTML formats can be read from the SmartMedia memory card and viewed by the user in a broad range of lighting conditions: bright sunlight to starlight (via night vision goggles). The ZPD has application to a wide rage of DoD missions and is ideal for long-term, high-resolution, imagery and text display requiring infrequent updates.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 2005
- Accession Number
- ADA430242
Entities
People
- Barry Roberts
Organizations
- Honeywell International, Inc.