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Air-ground data link control and management method

A technology of data link control and management method, which is applied in the field of air-ground data link control and management, and the field of link control and management of aircraft during flight. State situation, aviation communication security cannot be guaranteed, etc., to achieve the effect of ensuring link security, improving status, and covering a wide range

Active Publication Date: 2009-05-06
BEIHANG UNIV
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Problems solved by technology

At the same time, the traditional link management method often ignores the seamless guarantee of switching between old and new links, and lacks an effective transition mechanism between old and new links, resulting in the inability to guarantee the security of aviation communications. In addition, it also ignores the role of ground-based systems in link switching, which has no effect. Consider multiple state situations when switching

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  • Air-ground data link control and management method
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Embodiment Construction

[0022] During the flight, the aircraft always needs to maintain contact with the ground station for data exchange. In the process of data transmission, data frames related to data transmission control include information frames and supervision frames, which are responsible for air-ground data information exchange and error detection; data frames related to link control are called interactive frames, which are responsible for management and control of air-ground data links Function. The interaction frame contains some specific link parameter information, including specific parameters and operability parameters. The specific parameters are the parameter information that must be included in the data link establishment of the aircraft or the ground station, or the iconic parameters between the ground station and the aircraft. For example, ground station identification parameters, minimum information quality parameters required by the aircraft, etc.; operability parameters are para...

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Abstract

The invention relates to an air-ground data link control management method which comprises the course of the link initialization of an airplane and a ground system, the establishment of the initialization link of the airplane and a ground station, an automatic tuning method of a ground base system and the multi-state link switching course, wherein the course of the link initialization of the airplane and the ground system comprises the following steps: the airplane searches in a public signal frequency band and the frequency band with service priorities, and the ground station also sends a ground broadcast frame in the present service frequency band and the public signal frequency band; the multi-state link switching course comprises the following steps: according to differences of switching control weights of the airplane and the ground station, if the ground system is required to be switched, and an airplane terminal has switching and initialization functions, the switching course of ground base requirements and airplane initialization is carried out, and if the airplane terminal is required to be switched and the ground station has switching and initialization functions, the switching course of air plane requirements and ground initialization is carried out. The flexible and automatic control and the link management with no gap switching of the airplane and the ground station can be guaranteed.

Description

technical field [0001] The invention relates to an air-ground data link control and management method, in particular to a link control and management method for an aircraft during flight, and belongs to the technical field of aviation communication. Background technique [0002] Internationally and domestically, the growth of air transport has entered a new stage in recent years. It is predicted that the annual growth rate of world air passenger transport will be 8% by 2010. The increase of flight traffic requires the aviation communication system to be able to exchange aviation and flight information quickly, accurately and reliably, and to perform automatic processing. [0003] The aviation data communication system has functions such as air-ground data processing and link control. In the air-ground data processing process, the aircraft and the ground station adopt certain data processing procedures to complete the main data error detection and data exchange tasks. Howev...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04W36/08
CPCH04B7/18506
Inventor 张学军张瑶路航
Owner BEIHANG UNIV
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