Safe and real-time soft recovery system and method for aircraft state information
A technology of status information and flight status, applied in the field of aircraft measurement and control, to achieve the effect of wide coverage, ensuring safety and improving success rate
Active Publication Date: 2012-11-14
BEIJING AEROSPACE AUTOMATIC CONTROL RES INST
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Problems solved by technology
The invention solves the problem of real-time soft recovery of the flight state information during the flight of the aircraft, and the trans-horizon transmission of the state information can be realized through relay satellite forwarding. At the same time, the invention also has an encryption mechanism to encrypt the flight state information so that Guaranteed the transmission security of state information
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[0055] A safe real-time soft recovery system for aircraft state information includes: an aircraft encryptor, an aircraft satellite communication terminal, a ground decryptor and a ground satellite communication terminal. like figure 1 Shown is a block diagram of soft recovery of aircraft status information using the present invention. The flight control computer packs the flight state information of the aircraft and outputs it to the aircraft encryptor. The aircraft encryptor encrypts the flight state information, and sends the formed ciphertext data to the aircraft satellite communication terminal, and the aircraft satellite communication terminal forwards it to the aircraft through the relay satellite. The ground satellite communication terminal, the ground satellite communication terminal restores the received signal forwarded by the relay satellite to the original ciphertext data, and then uses the ground decryptor to decrypt the flight status information, and outputs it t...
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The invention discloses a safe and real-time soft recovery system for aircraft state information. The system is characterized by comprising an aircraft encipher, an aircraft satellite communication terminal, a ground decipherer and a ground satellite communication terminal. The aircraft encipher encrypts flight state information; the aircraft satellite communication terminal forwards the encrypted flight state information to the ground through a repeater satellite; and after the ground satellite communication terminal receives the encrypted flight state information, the ground decipherer recovers the encrypted flight state information to realize the safe and real-time soft recovery of the aircraft state information. Meanwhile, the invention also provides a method for encrypting and recovering the flight state information by using the system. The aircraft encipher and the ground decipherer flexibly and quickly encrypt and decrypt the flight state information in a mode of combining software and hardware. Simultaneously, the flight state information is recovered according to the input frequency of flight control calculation periodicity so as to track the aircraft state information inreal time.
Description
technical field [0001] The invention relates to a system and method for recovering aircraft status information, in particular to a system and method for safely and real-time soft recovery of aircraft status information, belonging to the field of aircraft measurement and control. Background technique [0002] Traditional aircraft flight status information recovery often adopts hard recovery or telemetry recovery. Hard recovery refers to the use of data acquisition and storage devices to record and store flight status information. Using this method to recover the flight status information of the aircraft, only after the flight of the aircraft is over, it takes a lot of manpower and time to search the data acquisition and storage device in the landing area, and the stored information can only be recovered when the device is not damaged. . This recovery method has very strict requirements on the landing conditions of the aircraft. In addition, the traditional method of hard r...
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IPC IPC(8): H04L9/14H04L9/18H04B7/185
Inventor 董文杰林金永张春侠周春梅张俊马继峰王焱宁高晓颖
Owner BEIJING AEROSPACE AUTOMATIC CONTROL RES INST