Method and device for ensuring the safety of low-altitude flight of an aircraft
View Patent ↗Method and device for ensuring the safety of a low-altitude flight of an aircraft. The device ( 1 ) comprises a recording means ( 8 ) corresponding to an operation critical instrument for recording, during a low-altitude flight, one part at least of the lateral trajectory of the flight trajectory situated ahead of the current position of the aircraft, a monitoring means ( 11 ) for monitoring, during a low-altitude flight, the availability at least of said lateral trajectory, and a guidance system ( 3 ) for taking the aircraft up to a safe altitude, taking into account said part of the trajectory recorded by said recording means ( 8 ), when said monitoring means ( 11 ) has detected a loss of said lateral trajectory.
1. A method to ensure safety of low-altitude flight of an aircraft being guided along a low-altitude flight trajectory, comprising:
(a) determining a lateral trajectory and a vertical trajectory of the low-altitude flight trajectory using a trajectory determining unit;
(b) guiding the aircraft along the determined low-altitude flight trajectory using a guidance system which is connected by a link to the trajectory determining unit and which receives a transmission of the low-altitude flight trajectory from the trajectory determining unit via the link;
(c) recording at least one part of the lateral trajectory of the flight trajectory situated ahead of a current position of the aircraft along the low-altitude flight trajectory using a recording unit integrated into said guidance system;
(d) monitoring the transmission using a monitoring unit to detect a loss of the lateral trajectory caused by an error in the transmission; and
(e) guiding the aircraft up to a safe altitude, taking into account said at least one part of the lateral trajectory recorded by said recording unit, in response to, in step (d), detecting the loss of the lateral trajectory, wherein:
the aircraft is guided automatically in order to be taken up to said safe altitude.
2. The method as claimed in claim 1 , wherein, during said low-altitude flight, one part of the whole flight trajectory, comprising said lateral trajectory and also said vertical trajectory, is recorded.
3. The method as claimed in claim 1 , wherein said safe altitude is a predetermined value.
4. The method as claimed in claim 1 , wherein the aircraft is guided in a climb at maximum slope in order to take the aircraft up to said safe altitude.
5. The method as claimed in claim 1 , wherein the aircraft is guided manually by a pilot in order to be taken up to said safe altitude.
6. The method as claimed in claim 1 , wherein an alarm signal is emitted when the loss of the lateral trajectory is detected.
7. The method as claimed in claim 1 , wherein a characteristic indication is generated when the aircraft is guided in order to be taken up to said safe altitude.
8. A device to ensure the safety of low-altitude flight of an aircraft being guided along a low-altitude flight trajectory, device comprising:
a trajectory determining unit to determine the low-altitude flight trajectory comprising a lateral trajectory and a vertical trajectory;
a guidance system, connected by a link to the trajectory determining unit, to guide the aircraft along the low-altitude flight trajectory determined by the trajectory determining unit, the guidance system receiving a transmission of the low-altitude flight trajectory from the trajectory determining unit via the link;
a recording unit, integrated into said guidance system, to record, during a low-altitude flight, at least one part of the lateral trajectory of the flight trajectory determined by the trajectory determining unit and situated ahead of a current position of the aircraft along the low-altitude flight trajectory; and
a monitoring unit to monitor, during a low-altitude flight, the transmission to detect a loss of the lateral trajectory caused by an error in the transmission;
wherein, when said monitoring unit has detected the loss of the lateral trajectory, said guidance system guides the aircraft up to a safe altitude, taking into account said at least one part of the of the lateral trajectory recorded by said recording unit, wherein:
said guidance system comprises an automatic guidance unit.
9. The device as claimed in claim 8 , wherein said guidance system comprises a manual guidance unit.
10. The device as claimed in claim 8 , which additionally comprises an alarm unit to emit an alarm signal when the loss of lateral trajectory is detected by said monitoring unit.
11. The device as claimed in claim 8 , which additionally comprises an indication unit to indicate a characteristic indication when the aircraft is guided by said guidance system in order to be taken up to said safe altitude.
12. An aircraft, which comprises the device of claim 8 .
13. An aircraft, which comprises a device to implement the method of claim 1 .
14. The device as claimed in claim 8 , wherein the recording unit records only the at least one part of the lateral trajectory, and when the loss of the lateral trajectory is detected, a thrust control system integrated into the guidance system automatically adjusts a power of the aircraft to a maximum power and a pilot of the aircraft only has to actuate an actuating unit to enable the guidance system to guide the aircraft to the safe altitude.
15. A device to ensure the safety of low-altitude flight of an aircraft being guided along a low-altitude flight trajectory, device comprising;
a trajectory determining unit to determine the low-altitude flight trajectory comprising a lateral trajectory and a vertical trajectory;
a guidance system, connected by a link to the trajectory determining unit, to guide the aircraft along the low-altitude flight trajectory determined by the trajectory determining unit, the guidance system receiving a transmission of the low-altitude flight trajectory from the trajectory determining unit via the link;
a recording unit, integrated into said guidance system, to record, during a low-altitude flight, at least one part of the lateral trajectory of the flight trajectory determined by the trajectory determining unit and situated ahead of a current position of the aircraft along the low-altitude flight trajectory; and
a monitoring unit to monitor, during a low-altitude flight, the transmission to detect a loss of the lateral trajectory caused by an error in the transmission, wherein:
when said monitoring unit has detected the loss of the lateral trajectory, said guidance system guides the aircraft up to a safe altitude, taking into account said at least one part of the of the lateral trajectory recorded by said recording unit, and
the recording unit is integrated into an automatic pilot or a flight control system of the guidance system, and the automatic pilot or the flight control system automatically computes guidance commands to be used by said guidance system to automatically guide the aircraft up to a safe altitude.
16. The device as claimed in claim 15 , wherein said guidance system comprises a manual guidance unit.
17. The device as claimed in claim 15 , wherein said guidance system comprises an automatic guidance unit.
18. The device as claimed in claim 15 , which additionally comprises an alarm unit to emit an alarm signal when the loss of lateral trajectory is detected by said monitoring unit.
19. The device as claimed in claim 15 , which additionally comprises an indication unit to indicate a characteristic indication when the aircraft is guided by said guidance system in order to be taken up to said safe altitude.
20. An aircraft, which comprises the device of claim 15 .
21. The device as claimed in claim 15 , wherein the recording unit records only the at least one part of the lateral trajectory, and when the loss of the lateral trajectory is detected, a thrust control system integrated into the guidance system automatically adjusts a power of the aircraft to a maximum power and a pilot of the aircraft only has to actuate an actuating unit to enable the guidance system to guide the aircraft to the safe altitude.