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Hybrid avionics system tester based on fc‑ae‑1553

An avionics system and tester technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve problems such as avionics system testing that cannot mix multiple different protocols

Active Publication Date: 2017-02-08
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that it is currently impossible to test the avionics system that mixes multiple different protocols, thereby providing a hybrid avionics system tester based on FC-AE-1553

Method used

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  • Hybrid avionics system tester based on fc‑ae‑1553

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specific Embodiment approach 1

[0016] Specific implementation mode 1. Combination figure 1 Illustrating this specific embodiment, a hybrid avionics system tester based on FC-AE-1553, which includes a processor 1, an FPGA2, an optical fiber transceiver 3, an RS422 / 485 transceiver 4, a host computer interface circuit 5, and a 1553B protocol chip 6 , two isolation transformers 7 and host computer 8;

[0017] Optical fiber transceiver 3 is used for mutual conversion of optical signal and electrical signal; RS422 / 485 transceiver 4 is used to realize level conversion and data transmission and reception of RS-422 / 485 signal;

[0018] FPGA2 is used for data interaction with optical fiber transceiver 3; also used for data interaction with RS422 / 485 transceiver 4; also used for data interaction with processor 1;

[0019] The signal input or output terminal of the upper computer of the processor 1 is connected with the signal output or input terminal of the upper computer 8 through the upper computer interface 5;

...

specific Embodiment approach 2

[0033] Embodiment 2. The difference between this embodiment and the FC-AE-1553-based hybrid avionics system tester described in Embodiment 1 is that it also includes a power supply circuit, which is used to provide the processor 1 , FPGA2, optical fiber transceiver 3, RS422 / 485 transceiver 4, host computer interface circuit 5, 1553B protocol chip 6 and two isolation transformers 7 to provide working power.

specific Embodiment approach 3

[0034] Embodiment 3. The difference between this embodiment and the FC-AE-1553-based hybrid avionics system tester described in Embodiment 1 is that the optical fiber transceiver 3 is implemented by an SFP module with a model of FTLF8514P2, or a model of Implemented for the SFP module of the AFBR-57M5APZ.

[0035] The optical fiber interface is composed of two parts: the optical fiber transceiver module and the programmable logic device. The optical fiber transceiver module is an important part of realizing the optical fiber interface circuit and the core device to realize the FC-0 layer function of the fiber channel protocol; its main function is When sending, the electrical signal is converted into an optical signal and sent into the optical fiber, and when receiving, the optical signal on the optical fiber is converted into an electrical signal for use and processing by subsequent circuits. Among the optical fiber transceiver modules, the SFP module is currently the most wi...

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Abstract

An FC-AE-1553 based mixed avionics system tester relates to a mixed avionics system tester and aims to solve the problem that an avionics system mixing various different protocols can not be tested currently. The tester adopts the structure that a fiber transceiver is used for mutual conversion between optical signals and electrical signals; an RS422 / 485 transceiver is used for realizing level conversion and data transmit-receive of RS-422 / 485 signals; an FPGA (Field Programmable Gate Array) is used for performing data interaction with the fiber transceiver, the RS422 / 485 transceiver and the processor; a signal input or output end of an upper computer of the processor is connected with a signal output / input end of the upper computer; a 1553B protocol signal input or output end of the processor is connected with a 1553B protocol signal output or input end of a 1553B protocol chip; and the 1553B protocol chip is in data interaction with an external 1553B summary unit through two isolation transformators. The tester is suitable for testing of the mixed avionics system.

Description

technical field [0001] The invention relates to a hybrid avionics system tester. Background technique [0002] With the increasing requirements of avionics systems in terms of data transmission speed, weight, anti-interference ability (electromagnetic compatibility) and channel capacity, Fibre Channel (FC) technology has been gradually applied in the design of new avionics systems. [0003] The Fibre Channel protocol is a high-speed serial communication protocol proposed by the American National Standards Institute (ANSI). It has the advantages of high bandwidth, high reliability, high transmission rate, and support for multiple upper-layer protocols. For the avionics field, the FC-AE-1553 (Fibre Channel-Avionics Environment Upper Layer ProtocolMIL-STD-1553) protocol based on the Fibre Channel protocol inherits and extends the 1553B bus while maintaining all the advantages of the Fibre Channel protocol. The functions of the avionics system can well meet the requirements of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L29/06
Inventor 乔家庆冯收付平凤雷张佳宁樊帆
Owner HARBIN INST OF TECH
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