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ADS-B (Automatic Dependent Surveillance-Broadcast) collision avoidance method based on DO185B standard

A DO185B and ADS-B technology, applied in the field of ADS-B collision avoidance based on the DO185B standard, can solve problems such as inaccurate azimuth angle measurement, unstable flight path, and aircraft azimuth jump, so as to improve stability and flight path. Information is continuous and stable, and the effect of reducing the size of the device

Active Publication Date: 2022-03-01
四川九洲空管科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to design reasons, the azimuth and angle measurement of the traditional airborne collision avoidance system TCAS II is inaccurate. According to the requirements of DO185B, the azimuth accuracy of the angle measurement is less than 9 degrees root mean square, and in the actual use process, the TCAS II equipment reports to the flight The aircraft orientation on the instrument display interface often jumps, or the flight path is unstable

Method used

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  • ADS-B (Automatic Dependent Surveillance-Broadcast) collision avoidance method based on DO185B standard
  • ADS-B (Automatic Dependent Surveillance-Broadcast) collision avoidance method based on DO185B standard

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Embodiment 1: a kind of ADS-B anti-collision method based on DO185B standard, comprises steps:

[0054] S1, receiving ADS-B message;

[0055] S2, ADS-B message processing;

[0056] S3, the ADS-B message is sent, and the track extrapolation of the target aircraft is performed when the information of the target aircraft is not received. The reasonable application of this embodiment can filter false ADS-B targets to a certain extent. At the same time, according to the standard requirements of DO185B, when the target aircraft information is not received, it is necessary to extrapolate the target aircraft's track. Currently, there is no such method in DO260B As for the algorithm of ADS-B target extrapolation, the present invention also includes the extrapolation method of ADS-B target.

[0057] like figure 1 As shown, the ADS-B collision avoidance system running the ADS-B collision avoidance method of the present invention includes two major functional modules, namely ADS...

Embodiment 2

[0058] Embodiment 2: On the basis of embodiment 1, a kind of processing flow of the ADS-B anti-collision method based on DO185B standard is as follows figure 2 As shown, the processing flow of ADS-B message reception is as follows:

[0059] (1) extract the DF number of the ADS-B message, and only process the messages whose DF numbers are 17 and 18;

[0060] (2) carry out CRC operation to ADS-B message, if CRC result fails, then discard this ADS-B message;

[0061] (3) extract the CA field or the CF field in the ADS-B message, extract the AA field in the ADS-B message, extract the ME field in the ADS-B message to form the trace information of the ADS-B target;

[0062] (4) Judgment is made to the TYPE field of the ADS-B message, if it is not 0, then the S mode dot trace information is sent to the ADS-B message processing module for further processing.

[0063] The flow of ADS-B packet processing is as follows:

[0064] (1) Receive the S-mode dot trace information from the A...

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Abstract

The invention discloses an ADS-B (Automatic Dependent Surveillance-Broadcast) collision avoidance method based on a DO185B standard. The method comprises the following steps: S1, receiving an ADS-B message; s2, ADS-B message processing is carried out; and S3, sending the ADS-B message, and extrapolating the track of the target machine when the information of the target machine is not received. Compared with a traditional airborne anti-collision device, the ADS-B anti-collision device has the advantages that the stability of the track and the precision of the position are improved, meanwhile, the ADS-B anti-collision device can achieve the anti-collision function only by receiving the ADS-B message, and therefore compared with the traditional airborne anti-collision device, the ADS-B anti-collision device has the advantages that a transmitting module is omitted, the size of the device is reduced, and the power consumption and the economic cost of the device are reduced.

Description

technical field [0001] The present invention relates to the technical field of ADS-B anti-collision, and more specifically, relates to an ADS-B anti-collision method based on the DO185B standard. Background technique [0002] The ADS-B anti-collision equipment passively receives the ADS-B message broadcast by the aircraft (target aircraft) equipped with ADS-B OUT equipment in the airspace, and resolves the target aircraft through CPR global decoding and local decoding (refer to DO260B for the specific algorithm). The position information of the target machine is compared with the position information of the machine equipped with ADS-B anti-collision equipment, and the movement trend of the target machine relative to the machine is calculated. The core anti-collision method of ADS-B anti-collision equipment is completely consistent with that of the airborne collision avoidance system TCAS II. For the ADS-B track information of the target aircraft, it performs target aircraft ...

Claims

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Application Information

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IPC IPC(8): G08G5/04
CPCG08G5/045
Inventor 王欢祝正燕陈伟
Owner 四川九洲空管科技有限责任公司