METHOD OF DETERMINING VISIBILITY RANGE OF RUNWAY LIGHTS AND APPARATUS FOR REALISING SAID METHOD Russian patent published in 2012 - IPC G08G5/02 

FIELD: physics.

SUBSTANCE: group of inventions is primarily meant to determine visibility of runway orientation lights for meteorological support at an aerodrome. In the disclosed method of determining visibility range of runway lights, the minimum required brightness of lights I_min which is sufficient for detection at a distance R_min is determined first. The brightness setting I_n of the lights is selected based on the condition I_n>I_min>I_n-1, where n is the index number of the brightness setting. The visibility range R of the lights at the selected brightness setting I_n is determined. I_min is calculated using formula where R_min corresponds (equal) to the operating aerodrome minimum (RVR) on the visibility range on the runway, m is a safety factor and ε is the eye brightness-difference threshold. The apparatus has a computer with a measurement information preprocessing unit, a data interface for meteorological visibility range S, brightness of the ambient background E, connected to a meteorological visibility range S sensor and an ambient background E sensor, an interface for installing (switching on) runway lights with a controlled input, a program module for calculating (RVR) on a iteration algorithm and a digital display.

EFFECT: independent operation and automation of the process of obtaining data on visibility of runway lights.

2 cl, 1 dwg, 3 tbl