Enhanced Vision Systems
The Enhanced Vision System (EVS) II system consists of a FLIR assembly which includes optics, detector/cooler, and signal processing electronics; a processor assembly including communications, video processing and output control, and window heater control electronics; and infrared window assembly with heater for a total system weight of 22 lbs. The unit is electronically and physically integrated into the aircraft system and utilizes a cryogenically-cooled FLIR thermal imaging camera to generate the live video image. Power is supplied by the aircraft 28VDC source requiring 180W for the FLIR, 50W for the processor, and 130W for the infrared window. Ethernet and discretes connect the FLIR to the processor assembly. An aircraft interface uses ARINC 429 or MIL-STD-1553 communication channels and provides three ports of RS-170 analog video along with two ports of SMPTE 259. Other discretes are provided for control and adjustment along with an RS-232 port for maintenance.
Our EVS II product provides significantly improved pilot visibility in fog and other low visibility conditions thereby allowing landings in situations that would otherwise prohibit a landing approach and clearance. The system is based on proprietary infrared sensor technology specifically designed to detect runway approach lights and touchdown cueing. EVS II is designed against safety and mission critical industry standards and guidelines for commercial and military avionics such as DO-178B, DO-254, and DO-160D. EVS II has proven operational performance that exceeds all FAA and EASA requirements levied for enhanced vision performance and reliability currently quoted at 5,000 hours MTBF.
For more information, please see the Commercial Aviation - Kollsman product page.