Avionics display architecture with independent processing and monitoring channels

摘要

A high integrity, high availability avionics display architecture for an avionics display system. The architecture includes a plurality of display processing computers (DPC) and a plurality of display integrity feedback interfaces. Each DPC includes at least two independent processing channels. Each independent processing channel includes at least two independent lanes. Each independent lane includes an I/O section and a processor section. Furthermore, each independent processing channel comprises an operative graphics section. At least one of the independent lanes provides a critical display function that provides commands to the graphics section to drive a display signal to displays of the avionics system. A number of display integrity feedback interfaces from the displays of the avionics display system provide integrity by allowing the integrity monitor functions to detect faults within the display signals and/or originating from the displays.

主权项

1. A high integrity, high availability avionics display architecture for an avionics display system, comprising:
a) a plurality of display processing computers (DPC), each DPC comprising:
at least two independent processing channels, each independent processing channel comprising at least two independent lanes, each independent lane comprising:
1. an I/O section; and,2. a processor section;wherein each independent processing channel comprises an operative graphics section, wherein at least one of said independent lanes provides a critical display function that provides commands to said graphics section to drive a display signal to displays of said avionics system; and, at least one other of said independent lanes provides an integrity monitor function; and, b) a plurality of display integrity feedback interfaces from the displays of said avionics display system, said feedback interfaces providing integrity by allowing the integrity monitor functions to detect faults within the display signals and/or originating from the displays.