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Fault information backup method used for fault diagnosis

A fault information and backup technology, applied in the field of avionics, can solve problems such as failure to obtain fault information and difficult fault location, and achieve the effect of improving product reliability and avoiding software operation resources and storage space.

Active Publication Date: 2017-03-01
SHAANXI QIANSHAN AVIONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if there is no current history or incomplete history when downloading data, it will not be easy to locate the fault because the fault information cannot be obtained

Method used

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  • Fault information backup method used for fault diagnosis
  • Fault information backup method used for fault diagnosis
  • Fault information backup method used for fault diagnosis

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Embodiment Construction

[0019] figure 1 It is a block diagram of the product structure for realizing the protected area maintenance function of the present invention. As shown in the figure, a fault information backup method for fault diagnosis includes a collection device, the collection device is used to send flight data and fault information to the recording device, the collection device includes a power module and a main control module, and the power module includes a power monitoring circuit, the power monitoring circuit uses a MAX705 chip, the main control module includes a microprocessor and FLASH, and the main control module can determine whether the communication between the acquisition device and the recording device is abnormal; after the acquisition device is powered on, it sends a link building command to the recording device, such as If the link is established successfully, the acquisition device will periodically send data to the recording device, and each frame of data sent by the acq...

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Abstract

The invention relates to a fault information backup method used for fault diagnosis. Based on the record of product normal fault information, writing protection area operation is added in product important state points, and product important state information is recorded in a protection area storage space, and the record information can be downloaded and checked through a ground maintenance device. According to the protection area maintenance method, reliable reference basis can be provided for troubleshooting after abnormal work of the product, the state information and the fault information recorded by the original ordinary method are backups for each other, and the product reliability is improved.

Description

technical field [0001] The invention belongs to the technical field of avionics. Background technique [0002] The flight parameter acquisition and recording system, as an essential airborne device of the aircraft, can play an important role in recording various types of flight data during the flight of the aircraft. The integrity and accuracy of the recorded flight history information will provide a reference for aircraft flight accident analysis, daily maintenance, training evaluation, etc. [0003] Due to the poor monitorability of airborne equipment during aircraft flight, the improvement of the reliability of the flight reference system itself depends on the recording of product failure information during product work. Usually when the flight reference system is working, the data acquisition device will record the current fault information of the product into the recording device while sending the flight data to the recording device. After the current flight is over, ...

Claims

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Application Information

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IPC IPC(8): G05B23/02
CPCG05B23/0221G05B2219/14084
Inventor 文柳陈志达刘建
Owner SHAANXI QIANSHAN AVIONICS
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