초록 ▼

A fail safe GPS system for an aircraft moving along a desired trajectory within vertical and horizontal limits using first and second redundant GPS receivers a first of which is connected to the avionics equipment of the aircraft and to an alarm and the second of which is connected only to the alarm

A fail safe GPS system for an aircraft moving along a desired trajectory within vertical and horizontal limits using first and second redundant GPS receivers a first of which is connected to the avionics equipment of the aircraft and to an alarm and the second of which is connected only to the alarm so that if a malfunction in the flight management system occurs both GPS\s will cause the alarm and if a malfunction in the first GPS system occurs, so that the aircraft exceeds the vertical or horizontal limits, the second GPS system will cause the alarm.

대표청구항 ▼

In combination with an aircraft being controlled to move along a desired trajectory: a first GPS system operable to receive signals from a plurality of satellites and to produce a first signal indicative of the aircraft position and a second signal indicative of a departure of the aircraft from a de

In combination with an aircraft being controlled to move along a desired trajectory: a first GPS system operable to receive signals from a plurality of satellites and to produce a first signal indicative of the aircraft position and a second signal indicative of a departure of the aircraft from a desired trajectory which is greater than a predetermined amount; a second GPS system operable to receive signals from the plurality of satellites and to produce a first signal indicative of the aircraft position and a second signal indicative of the departure of the aircraft from a desired trajectory which is greater than the predetermined amount; means transmitting only one of the first signals to the aircraft to provide position information thereto; an alarm; and means transmitting the second signal of both the first and second GPS systems to the alarm so that an alarm will occur whenever the aircraft departs from the desired trajectory by more than the predetermined amount.