Q4 engineers successfully installed and certified the first liquid crystal on silicon (LCoS) Monitor Replacement Projector (MRP) system at United Airlines in Denver, Colorado.
The Alion supplied system was retrofitted to a 747-200 and has provided uninterrupted training now for some months.
This latest Q4 Raster-Only Monitor Replacement Projector (Q4-MRP) provides a form, fit and function replacement option for display solutions that currently use 25-inch shadow-mask color CRT in wide-angle collimated (WAC) optical systems as used by XKD and E & S (CSM).
The Q4-MRP achieves this requirement using fixed matrix projectors instead of 25-inch direct view CRTs, and is designed for use as a visual simulation display, primarily in conjunction with WAC optical systems that operate up to a maximum of 64 kHz line frequencies. It supports up to nine high-resolution channels with image matching between adjacent channels. It can achieve raster distortion necessary to accommodate the requirements of the infinity optical system, in a juxtaposed configuration.
The Q4-MRP can be operated at either 50 Hz or 60 Hz field/frame rates, and can pre-store adjustments of geometry, convergence, shading, focus, contrast and brightness.
Equipment Configuration
The Q4-MRP consists of the following major assemblies:
- Display Head Unit
- Remote Control Unit (one per system)
- Interconnect Cables
The JVC model HD-2K DILA projector, incorporating LCoS technology produces picture resolution 1920 horizontal pixels by 1080 vertical lines. The vendor incorporates a custom lens modification to optimize the performance for simulation application to match the radius of the applicable back screen. The HD-2K operates in raster mode with a horizontal raster and support line rates at 60Hz.
Due to the modular nature of the Q4-MRP it is possible to fit many different types of projector within the housing. This provides the end user with a high degree of flexibility in design to allow for varying requirements in resolution, cost and brightness.
The housing and components are designed so there are no observable effects on the picture stability or presentation due to normal runway rumble, stall buffet or other vibrations inherent in the motion systems exist. Maximum motion system acceleration and deceleration will not damage any of the display system hardware, nor cause any degradation to optical or electronic alignments.
The overall weight of the housing and components does not exceed 150 pounds. Video RGB signals, synchronization signals, and defocus signal can be input to the DHU via VGA or DVI input connections, and a secondary communication port using RS232 protocol will also be provided for maintenance functions and host communications of hour meter readings, etc.