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Data transmission method and system of airplane and ground system

A technology of data transmission system and data transmission method, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve the problems of low data transmission rate, blocking, and inability to effectively deliver data, and achieve the effect of solving the cache problem.

Inactive Publication Date: 2011-03-30
BEIHANG UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

In this process, it is necessary to use the aeronautical wireless communication device on the aircraft side to transmit data from the aircraft to the ground control system or from the ground control system to the aircraft. However, the current control effect of data transmission between the aircraft and the ground control system is not ideal and cannot solve the problem. The problem of data caching under high traffic conditions cannot effectively deliver data and avoid congestion when the line condition is not good, so the data transmission rate is low and cannot meet the flow requirements of data transmission when the amount of data is large

Method used

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  • Data transmission method and system of airplane and ground system
  • Data transmission method and system of airplane and ground system
  • Data transmission method and system of airplane and ground system

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Embodiment 1

[0039] The present invention also provides a data transmission method between the aircraft and the ground system, such as Figure 5 Shown, embodiment 1 of this control method comprises the following steps:

[0040] Encapsulate the received raw flight data from the aircraft to form a data packet;

[0041] Store the data packets in the order of receipt;

[0042] dividing the packet into multiple packet queues;

[0043] According to the priority order of the data packet queue, attach the frame header, data start flag and check code to the data packet queue respectively to form an information frame and send the information frame. The frame header is used to mark the starting position of the frame, and read the data in it sequentially. When encountering the content of the header flag, that is, the string "111111", in order not to repeat the header flag, replace it with "1111101" , and continue to read, when the content of the frame is read, add a check code and a tail mark at th...

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Abstract

The invention discloses a data transmitting method and system between airplane and ground system, which comprises the following parts: data pack processing mode, buffer area mode, flow engine mode, memory management mode and data transceiver mode. The transmitting method comprises the following steps: packing the received original flight data to form data pack; reserving the data pack according to the transceiver sequence; dividing the data pack into multiple data pack queues; attaching frame head, data starting mark and checking code on the data pack queue to form information frame accordingto the data pack queue sequence; transmitting the information frame. The invention realizes high flow communication between airplane and ground system, which solves the buffer problem of data under high flow effectively.

Description

technical field [0001] The invention relates to a method and system for data transmission, in particular to a method and system for data transmission between an aircraft in flight and a ground control system. Background technique [0002] In recent years, the total turnover of my country's air transport has continued to grow at a high speed, and the volume of aviation business has increased significantly. With the rapid increase of aviation traffic, transportation safety has become an increasingly important topic, which has attracted the attention of manufacturers and operating organizations. In order to ensure that the aircraft system operates in a normal state during the flight and that every part of the aircraft is in a safe environment, it is necessary to monitor the important parts of the aircraft for a long time and analyze the parameter changes during its operation. To achieve the purpose of predicting possible failures. In this process, it is necessary to use the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L12/56H04B7/185H04L12/863
Inventor 张学军刘锋张军滕德强
Owner BEIHANG UNIV
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