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Comprehensive avionics PHM system

A technology that integrates avionics and control modules. It is applied in the direction of electrical digital data processing, generation of response errors, and instruments. It can solve problems such as the inability to guarantee the timeliness of self-inspection information reporting, complex analysis work of system control modules, and low system efficiency. , to achieve simplification and scalability, reduce the number of modules, and simplify the system architecture

Active Publication Date: 2020-09-01
10TH RES INST OF CETC
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  • Application Information

AI Technical Summary

Problems solved by technology

Limited by the bandwidth of the low-speed bus, after the business data communication channel occupies the bandwidth, the timeliness of self-inspection information reporting cannot be guaranteed; moreover, various interfaces are mixed, self-inspection information is mixed with normal communication business data, and the analysis work of the system control module is complicated. The system is not efficient

Method used

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Examples

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Embodiment Construction

[0022] refer to figure 1 . In the preferred embodiment described below, an integrated avionics PHM system includes: N signal processing modules and system control modules connected around a high-speed switching network through an airborne high-speed bus, and each signal processing module has built-in health management Message signaling unit MSU and a complex programmable logic device CPLD, in which: each signal processing module has an MSU processing unit responsible for health management, 1-4 field programmable gate array FPGA, 1-4 general digital signal processing DSP and a CPLD responsible for reset and clock reference of this module. N signal processing modules and system control modules communicate through the high-speed serial RapidIO bus, and use the CAN bus as the health management data transmission medium to form the system control module as the core of health data management, and connect the high-speed switching network through the RapidIO high-speed serial bus The...

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Abstract

The invention discloses a comprehensive avionics PHM system, and aims to provide a health management system which can reduce the fault positioning time of a task system and is high in transmission efficiency. The comprehensive avionics PHM system is realized through the following technical scheme: N signal processing modules and system control modules and a CAN bus serving as a health management data transmission medium form a star-shaped switching network by taking the system control modules as a health data management core and connecting the signal processing modules and the system control modules of a high-speed switching network; the system control module sets threshold number, temperature and voltage range values for various state values of the signal processing module through a CAN bus interface, and the signal processing module is connected with a CAN bus of the system control module through a CAN bus to achieve separation of health management data transmission and inter-moduleservice data communication. Once it is monitored that the state value exceeds a set threshold event, the state value is reported to a system control module through an interface collected by CAN bus health management software.

Description

technical field [0001] The invention relates to a comprehensive avionics health management PHM system for self-inspection, status, threshold and time management of integrated avionics system modules. Background technique [0002] With the development of large-scale digital circuit integrated chip technology and the continuous increase in the transmission rate of high-speed buses, the avionics system has transformed from multiple independent devices to highly integrated integration. Complex, but the existing integrated avionics system module debugging and monitoring methods are not complete enough, the software and hardware status of the system is not perfect enough, and it is difficult to quickly locate the cause of the fault when a fault occurs, making the troubleshooting period of the integrated avionics system Long and poor maintainability. In traditional aviation airborne electronic equipment, the processors between the equipment are cascaded communication models, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/22G06F11/30G06F11/07G06F13/42
CPCG06F11/2205G06F11/2273G06F11/3058G06F11/3089G06F11/0757G06F13/4282G06F2213/0012Y02P90/02
Inventor 吴海燕唐宇邵龙钟瑜方科
Owner 10TH RES INST OF CETC
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