What is EFIS in A320?
An electronic flight instrument system (efis) is a flight deck instrument display system in which the display technology used is electronic rather than electromechanical. Early efis systems portray information using cathode ray tube (crt) technology. Efis symbol generator. These provide the analog, discrete and digital signal interfaces between the aircraft’s systems, the display units and the control panel. They provide symbol generation, system monitoring, power control and the main control functions of the efis overall.The EFIS visual display is produced by the symbol generator. This receives data inputs from the pilot, signals from sensors, and EFIS format selections made by the pilot. The symbol generator can go by other names, such as display processing computer, display electronics unit, etc.
How does an EFIS work?
EFIS displays utilize digital technology to present flight information in a more intuitive and user-friendly manner. The integration of advanced features like synthetic vision and terrain awareness further enhanced the capabilities of EFIS displays for a more complete picture of situation awareness. Description. The Electronic Flight Instrument System ( EFIS ) lets you control what flight info shows up on the Primary Flight Displays (PFDs) and the Navigation Displays (NDs). The EFIS Control Panel helps the flight crew pick and set up the info they want to see on the PFDs and NDs.
What does the EFIS consist of?
An EFIS normally consists of a primary flight display (PFD), multi-function display (MFD), and an engine indicating and crew alerting system (EICAS) display. Early EFIS models used cathode-ray tube (CRT) displays, but liquid crystal displays (LCD) are now more common. Examples of EFDs are the Primary Flight Display (PFD) which combines data from several instruments and is the pilot’s primary source of flight information and the multi-function display (MFD) which allows data to be presented on multiple pages that are convenient to switch between.