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Helicopter flight management database operation synchronization method

A technology of operation synchronization and database, applied in database index, geographic information database, database distribution/replication, etc., to achieve the effect of easy manual decoding, fast data compression, and good effect

Pending Publication Date: 2022-03-22
CHINA HELICOPTER RES & DEV INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide a method for synchronizing the operation of the helicopter flight tube database, and propose a corresponding solution for how to synchronize the database when editing the waypoint database and the flight plan database during the interactive process of the man-machine interface

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  • Helicopter flight management database operation synchronization method
  • Helicopter flight management database operation synchronization method
  • Helicopter flight management database operation synchronization method

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Embodiment

[0049] a) Waypoint database operation synchronization

[0050] The waypoint database can be edited in real time through the human-computer interaction interface of the IPDU. When the waypoint data is added, deleted or modified, it needs to be synchronized to another mission machine to perform the same operation on its waypoint data. In order to realize the operation-based synchronization of the waypoint database, the following data structure is designed:

[0051] Table 1 Single waypoint operation data structure

[0052]

[0053] When the user modifies the waypoint data in IPDU1, IPDU1 will send the modified operation type and the corresponding waypoint data information to IPDU2 according to the data format defined in Table 1, and IPDU2 will analyze the received waypoint database operation information, and according to the modified operation Type and corresponding waypoint information, perform the same operation on the local waypoint database, write the waypoint data inform...

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Abstract

The invention discloses a helicopter flight management database operation synchronization method, provides a specific design method for a data structure when a waypoint database and a flight plan database are operated aiming at the helicopter flight management database operation synchronization problem, and aims at the constraint that the bandwidth of an RS422 data bus is limited. A data coding and compression rule is provided for how to transmit data on the RS422 bus, and manual decoding and rapid data compression can be achieved easily. The method provided by the invention is successfully applied to the development of a comprehensive display control software flight management module and a dual-computer synchronization module in a helicopter comprehensive display control unit, and the effect is good through experiments and test flight verification.

Description

technical field [0001] The invention relates to the field of computer software, in particular to a method for synchronizing the operation of a helicopter flight tube database, which is used for synchronizing the flight tube database between two integrated display control units to realize data compression and reliable transmission. Background technique [0002] The flight management system (FMS) is the core of the avionics system of a large aircraft. It generates a flight plan by organizing, coordinating and integrating the functions and functions of multiple subsystems on the aircraft, and guarantees the implementation of the flight plan throughout the entire flight to achieve Automatic control of flight missions. As part of the embedded software of the integrated display control system of civil helicopters, the FMS module needs to realize the management and use of waypoints and flight plan data. The specific requirements are as follows: [0003] 1. There are hundreds of wa...

Claims

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Application Information

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IPC IPC(8): G06F16/27G06F16/29G06F16/22
CPCG06F16/27G06F16/29G06F16/2228
Inventor 程新满曹晞赵倩张红伟秦正运江志俭
Owner CHINA HELICOPTER RES & DEV INST