Data format conversion method fitting the need of broadcasting type automatic relevance monitoring message processing request

Abstract

The invention relates to a data format converting method which accords with the processing requirement of broadcast typed automatic relative monitoring datagram. The invention comprises that the ADS-B 1090 datagram is read. The position datum of a global positioning system are obtained by a computer loading selecting typed machine loading responder, the positioning datum are converted to the values of time label data item of the global positioning system in the CHN21 format. The data items which are relative with the speed of an aerocraft, the mark of the aerocraft and the position of the aerocraft in the ADS-B 1090 datagram are taken out, and the data items are converted into data items in the CHN21 format. The processing for the ADS-B 1090 datagram at a regulating ATC workstation is realized by using the method in which the ADS-B 1090 datagram is converted into the datum of CHN21 format. The accurate time of the position datum of the global positioning system received by a plane is obtained through the datagram.

Description

technical field [0001] The invention relates to a message data format conversion method, in particular to a data format conversion method meeting the message processing requirements of Automatic Dependent Surveillance Broadcast (ADS-B) for short. Background technique [0002] The fundamental purpose of air traffic control is to make the aircraft on the route fly in the airspace safely, effectively and in a planned manner, and the controller needs to monitor the flight dynamics of the aircraft in the controlled airspace in real time. [0003] The traditional radar surveillance method adopts the way of inquiry and response to detect the target. In the long run, the radar system itself has many limitations, which limit the improvement of surveillance performance. The straight-line propagation of the radar beam forms a large number of radar blind spots, which cannot cover areas such as oceans and deserts; the radar rotation period limits the improvement of the data update rate,...

AI Technical Summary

Problems solved by technology

[0010] However, there is no echo process in the ADS-B technology, and the data airborne equipment actively transmits monitoring information, so it is impossible to directly obtain the time information of the aircraft's GPS position data through the 1090 message

At the same time, since the current airborne equipment cannot be changed at will, it is also impossible to add a time stamp when the airborne S-mode transponder transmits the 1090 message.

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