ADS-B (Automatic Dependent Surveillance-Broadcast) data collection method

Abstract

The invention discloses an ADS-B (Automatic Dependent Surveillance-Broadcast) data collection method. According to the ADS-B data collection method, ADS-B signal end machines are arranged on signal base stations of N mobile communication operating companies, wherein the ADS-B signal end machines are connected to computers of machine rooms in the base stations of the mobile communication operating companies through data wires and are further connected to an internet in order to transmit collected ADS-B signal messages to a cloud computing data center to process. The ADS-B data collection method comprises the following steps of: packing ADS-B messages sent by an aircraft and received by the ADS-B signal end machines into UDP (User Datagram Protocol) messages for network transmission; accessing the internet through the base stations; transmitting the data packet to a distributive cloud computing data center; receiving the UDP messages by the distributive cloud computing data center, and then parsing and restoring the UDP messages into the ADS-B messages; and carrying out the high-time-resolution multi-point message detecting de-interleaving algorithm to obtain ADS-B data.

Description

technical field [0001] The invention relates to an ADS-B data collection method in the field of general air traffic monitoring technology, in particular to an ADS-B (ADS-B, Automatic Dependent Surveillance-Broadcast, Automatic Dependent Surveillance-Broadcast) based on mobile communication operator base station broadband access related surveillance) data collection methods. Background technique [0002] ADS-B technology is a surveillance technology proposed by the International Civil Aviation Organization (ICAO) based on satellite technology, data communication technology and computer technology in order to meet the needs of future air transport development. The ADS-B system uses the advanced ground-air / air-air data link as the means of communication, uses the information generated by the GPS navigation system and other airborne equipment as the data source, and broadcasts to the outside world in real time, spontaneously, and intermittently (such as once per second) Its own...

AI Technical Summary

Problems solved by technology

[0004] 1. The ADS-B ground station is currently deployed specifically for the main air routes, which still have great restrictions on the aircraft routes and cannot meet the requirements of free flight

[0005] 2. The current ADS-B ground stations are deployed in the form of dedicated stations. Each ground station includes data receivers, data processors, data recording equipment, etc., plus lightning protection, civil engineering and other supporting facilities, and the cost is still high. Not conducive to mass deployment

[0006] 3. In some areas with complex geological conditions, such as mountains, rivers, valleys, deserts, uninhabited areas, etc., in addition to equipment costs, the construction of dedicated ground stations requires a lot of human resources, which is not only difficult in engineering, but also has great operation and maintenance difficulty

[0007] 4. In the low-altitude airspace, due to the influence of the terrain, in order to ensure the target coverage, a higher deployment density of ADS-B data collection points is required. However, due to many engineering and maintenance constraints, the deployment density of ADS-B ground stations is not high, which is still difficult to meet free flight requirements

[0008] 5. In order to ensure data security, the existing ADS-B ground stations generally adopt a dual-system backup mechanism. Although the fault tolerance and security have been improved to a certain extent, when there is strong interference near the ground station or the equipment is damaged, there will still be The data of this node fails as a whole, leading to the risk of target loss, and the reliability of the system still needs to be improved

[0009] 6. When the density of ADS-B ground stations is insufficient and the density of aircraft is high, the ADS-B signals broadcast by multiple targets are prone to interleaving, resulting in unclear identification of targets

However, the technology does not involve the deployment of ground signal receiving stations

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