Hi ahramin,
I am not exactly sure how the systems operate, but we've got two systems installed.
1. Telematics:
Telematics 2. ADAS Trend Monitoring:
Altair Avionics Ground Station
Operationally, our office is able to track our altitude, speed and position using the Telematics system and an add-on to Google Earth. They are able to log on to Google Earth and get an overall picture of our whole fleet's positions. The system also has an emergency switch, but we've never had problems with accidental activation.
The engineers usually download the trend information from the ADAS system once per week. The system is programmed with all our limitations and will warn us in th cockpit if there has been an exceedance. As far as I am aware the ADAS system monitors N1, N2, ITT, fuel flow and bleed information every few minutes during flight.