Zero-Power, Interactive Document Viewer System Program

摘要

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.