Beidou short message data compression-encryption method and apparatus, and processor

Abstract

The invention discloses a Beidou short message data compression-encryption method and apparatus, and a processor. The method comprises the following steps: step 1, integrating original data information, and respectively storing integrated data; step 2, performing encoding processing on the integrated data, and performing character string recombination on encoded data; and step 3, transmitting an obtained character string to a Beidou short data channel. According to the Beidou short message data compression-encryption method and apparatus, and the processor, the encrypted transmission for equal-height dynamic-target total-factor information of three aircrafts can be implemented using one Beidou short message limited by seventy-eight characters, and the time interval for flight path points of the aircrafts is shortened from 60s to 20s; and meanwhile, the encoding and decoding of the Beidou short message data compression-encryption method and apparatus, and the processor to data information do not rely on ID information of a Beidou device card, and the relatively good flexibility is achieved.

Description

technical field [0001] The invention relates to the field of data processing, in particular to a Beidou short message data compression and encryption method, device and processor. Background technique [0002] Beidou short message is a characteristic function of Beidou navigation and positioning system, which is different from other major navigation and positioning systems in the world. However, the main task of Beidou is positioning and navigation. The communication channel resources are very limited, and it can only complete the short message communication function with a small amount of data, so the number of users and the amount of information sent will be limited. According to the different levels of Beidou cards, the message communication that Beidou cards can support can be divided into two levels. The time and frequency of sending short messages by specially approved Beidou cards is 240 characters per time in 30 seconds, and the time and frequency of sending short me...

AI Technical Summary

Problems solved by technology

[0003] For the 78-character short message with a sending interval of one minute, due to the limitation of the short message capacity, the general command plane and the user plane can only send and receive a set of ID, position, speed, altitude, direction, and status information, which is very difficult for general aviation aircraft and other high-speed For a moving target, because of its large position change, it will form a jump positioning, resulting in the discretization of its flight track, which cannot approximately reflect the real flight situation, which brings inconvenience to the need to track and grasp the real dynamics and exact conditions of the aircraft Meet tracking and monitoring requirements

[0004] Therefore, it is necessary to compress and encrypt the aircraft ID, position, speed, altitude, direction, and state information in order to transmit multiple complete information in one short message, but so far, there is no solution in the published literature. Related methods and devices for this problem

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