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Aircraft mission computer simulator

A computer simulator and simulator technology, applied in the field of aircraft avionics system simulation, can solve the problems of incompatibility between real-time and running status display, poor real-time performance, etc., achieve good real-time performance and running status display function, improve real-time performance, The effect of speeding up the development progress

Inactive Publication Date: 2015-07-01
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem that the existing task computer simulator has poor real-time performance and is difficult to be compatible with the display of the real-time and operating status. The present invention provides an aircraft task computer simulator

Method used

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  • Aircraft mission computer simulator
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specific Embodiment approach 1

[0066] Specific implementation mode one: see figure 1 and 2 Describe this embodiment, the aircraft mission computer simulator described in this embodiment, described simulator adopts industrial computer to realize, adopts Windows+RTX mechanism to be embedded in industrial computer as the internal structure of mission computer simulator, and described internal structure includes Windows process Communicate with RTX process, Windows process and RTX process by using shared memory communication mechanism and mutual exclusion mechanism;

[0067] The shared memory communication mechanism realizes data interaction between the Windows process and the RTX process through the shared memory, and the Windows process is responsible for establishing the shared memory.

[0068] Mutual exclusion mechanism to realize mutual exclusion of shared memory read and write between Windows process and RTX process;

[0069] The Windows process is used to realize the operation control, data display, da...

specific Embodiment approach 2

[0076] Specific implementation mode two: see figure 1 and 2 Describe this embodiment, the difference between this embodiment and the aircraft task computer simulator described in Embodiment 1 is that the basic unit of data shared by the Windows process and the RTX process is protocol data, and the shared data includes: order data and release data,

[0077] The order data is the protocol data information of each aircraft component received by the mission computer simulator through various communication buses,

[0078] Published data is the protocol data information sent by the mission computer simulator to each aircraft component through various communication buses.

specific Embodiment approach 3

[0079] Specific implementation mode three: see image 3 Describe this embodiment, the difference between this embodiment and the aircraft mission computer simulator described in the second embodiment is that the shared memory is divided into four parts:

[0080] The release status area is composed of the flag bits of the release agreement, which is used to identify the data update status of the release agreement. After the Windows process updates the data, the release status is set, and the RTX process checks the release status to obtain the updated release agreement data. The minimum unit of update is The entire protocol packet;

[0081] The release data area stores the protocol data information released by the task computer simulator, and the format is determined before the simulation runs, and the number of the release protocols is determined by the initialization data in the planning file.

[0082] The order status area is composed of the flag bits of the order agreement,...

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Abstract

The invention discloses an aircraft mission computer simulator, belongs to the field of aircraft avionic system simulation, and aims to solve the problems of poor real-time property and difficulty of compatibility of the real-time property and an operation state of an existing aircraft mission computer simulator. A Windows+RTX (Real Time eXchange) mechanism is embedded into an industrial personal computer to serve as an internal architecture of the mission computer simulator; the internal architecture comprises a Windows process and an RTX process; the Windows process is communicated with the RTX process by using a shared memory communication mechanism and a mutual exclusion mechanism; the shared memory communication mechanism realizes data exchange is performed between the Windows process and the RTX process through a shared memory; the Windows process is used for realizing operation control, data display, data management and data recording of the mission computer simulator; the RTX process is used for realizing mission execution, data transmission control and logic scheduling of the mission computer simulator. The simulator is applied to an aircraft research process.

Description

technical field [0001] The invention belongs to the simulation field of aircraft avionics system. Background technique [0002] The avionics integrated system (referred to as avionics system) is a modern high-performance avionics system without high-performance fighter jets. The mission computer is one of the important components of the aircraft avionics system, which mainly undertakes the functions of avionics system task execution, data transmission control and logic scheduling. [0003] Since the avionics system is used in harsh environments, ensuring the completeness of the equipment functions and the reliability of the performance of the avionics system is the core task in the development of the avionics system. Therefore, in the process of developing the avionics system, various simulation tests must be carried out on the ground to verify whether the functions of the entire avionics system are correct and complete, and whether the performance is up to standard, and pr...

Claims

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Application Information

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IPC IPC(8): G06F9/455
Inventor 杨京礼林连雷姜守达
Owner HARBIN INST OF TECH
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