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A method and device for real-time processing of multi-type messages

A real-time processing and multi-type technology, applied in the field of ADS-B system data detection, can solve problems such as resource consumption, insufficient real-time processing, message expiration, etc., to improve work efficiency, improve real-time processing capabilities, and avoid a large number of effects

Active Publication Date: 2016-08-31
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

[0006] 1. The system capacity cannot be properly set. If the system capacity is too large, most resources will be consumed, resulting in slow and unstable system operation. If the system capacity is too small, messages will be lost;
[0007] 2. The real-time processing of the system is not high, and the real-time processing is not enough, which will cause the previously arrived message to expire before processing, and the subsequent arriving message cannot be processed and lost
[0008] 3. The system works in one process for a long time, causing other tasks of the system to hang for a long time, and the system processes on one task, resulting in low system operation efficiency

Method used

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  • A method and device for real-time processing of multi-type messages
  • A method and device for real-time processing of multi-type messages
  • A method and device for real-time processing of multi-type messages

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] like figure 1 shown, including the following steps:

[0081] Step 101, according to the number of possible messages and the types of messages, open up a large enough buffer to receive and store the messages;

[0082] Step 102, synchronously performing synchronization header detection of several message types according to the stored message and storing its message start address;

[0083] Step 103, according to the synchronous header mark of detected message, wait for the time for a complete message to arrive;

[0084] Step 104, according to the arrival time of the complete message, combined with the message start address, read the message and store it in the newly opened buffer zone;

[0085] Step 105, read a complete message and decode various types of messages according to the newly opened buffer;

[0086] Step 106, according to the successful decoding flag, determine the specific type of the message and extract the plaintext.

Embodiment 2

[0087] Preferred embodiment two: as figure 2 shown, including the following steps:

[0088] Step 201: Open up two large-capacity buffers according to the FIS-B type and the ADS-B type respectively, that is, RAM1 and RAM2 are used to store FIS-B messages, and RAM3 and RAM4 are used to store ADS-B messages. Considering that the system may receive messages continuously, if the type and number of messages are not known, the buffer needs to be opened up sufficiently to ensure that data will not be lost, because the FIS-B type and ADS-B type The message synchronization headers are different, and the synchronization headers of ADS-B LONG and ADS-B BASIC are the same, so ADS-B LONG and ADS-B BASIC are stored in the same buffer, that is, RAM1 and RAM2 are used to store FIS-B message, RAM3 and RAM4 are used to store ADS-B messages.

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Abstract

The invention relates to the field of detection of ADS-B system data, in particular to a multi-type message real-time processing method and device. The multi-type message real-time processing method and device are provided oriented to the problems existing in the existing technology and are high in capacity. According to the multi-type message real-time processing method and device, multi-level caches are arranged, all types of messages are processed synchronously, and thus the demands that an ADS-B system needs to have the capacity of receiving and processing more than 700 ADS-B messages and more than 32 FIS-B messages pre second is met; under the condition that no missing of the messages is ensured, the messages are processed in real time to the maximum extent, and thus the working efficiency of the system is improved greatly. The multi-type message real-time processing device comprises a received message storing module, a synchronous head detecting module, a time awaiting module, a two-level caching module, a message coding module and a plain text extracting module, and the device is used for carrying out multithread processing and parallel processing on FIS-B type message data and ADS-B type message data. The multi-type message real-time processing method and device are applied to the field of message processing of large-volume data and multi-type data.

Description

technical field [0001] The invention relates to the field of ADS-B system data detection, in particular to a method and device for real-time processing of multi-type messages. Background technique [0002] In order to enable the aircraft on the route to fly safely, effectively and in a planned manner in the airspace, it is necessary to monitor the flight dynamics of the aircraft in the airspace in real time. The radar surveillance methods in the prior art use the inquiry and response method to detect the target, and 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, thereby limiting Improvement of monitoring accuracy; In addition, radar monitoring cannot obtain situational data such as the planned route and speed of the aircraft, which limits the improvement of tracking accuracy and the ability to detect and wa...

Claims

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Application Information

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IPC IPC(8): H04L12/70G06F12/08G06F12/0893
Inventor 张炼余林刘元春冯涛
Owner 四川九洲空管科技有限责任公司