Abstract:

Aircraft communication addressing and reporting system (ACARS)is a data link system of short message transmission between aircraft and ground stations via radio or satellite. According to condition based maintenance,a real-time fault monitoring method for airborne weather radar based on ACARS is proposed. Starting with the real airborne data,the fault words of airborne weather radar are analyzed based on the equipment failure test;meanwhile,ACARS report which is used for real-time fault monitoring is designed. With the air and ground cooperation,real-time fault monitoring of airborne weather radar is realized by using airborne equipment,air-ground data link and ground maintenance system. Actual tests show that this method can identify the fault of airborne weather radar system effectively,and reduce fault misjudgment,troubleshooting time and air operation costs.

Key words: airborne weather radar, ACARS, fault monitoring, ground maintenance system