FC-AE-1553 bus and MIL-STD-1553B bus non-transparent bridging system

A FC-AE-1553, non-transparent technology, applied in the field of aerospace information transmission, can solve the problems of inability to meet the special requirements of long-distance control systems, large size, and heavy weight.

Inactive Publication Date: 2019-04-05
BEIJING INST OF COMP TECH & APPL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transmission distance of the 1553B bus system can reach up to 200m, and the transmission distance of the stub line is about 6m, which cannot meet the special requirements of the remote control system in some occasions, and the cable is a coaxial cable, which is heavy and bulky

Method used

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  • FC-AE-1553 bus and MIL-STD-1553B bus non-transparent bridging system
  • FC-AE-1553 bus and MIL-STD-1553B bus non-transparent bridging system
  • FC-AE-1553 bus and MIL-STD-1553B bus non-transparent bridging system

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Embodiment Construction

[0018] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] figure 1 Shown is a kind of FC-AE-1553 bus and 1553B bus non-transparent bridging system use mode block diagram of the present invention, as figure 1 Shown, a kind of FC-AE-1553 bus and 1553B bus non-transparent bridging system of the present invention comprises: NC (FC-AE-1553 network control end), NT (FC-AE-1553 transfers MIL-STD-1553B equipment), and the controlled device node.

[0020] figure 2 Shown is the composition diagram of the NT part, image 3 Shown is a schematic diagram of MIL-STD-1553B function FPGA implementation, Figure 4 Shown is a schematic diagram of MIL-STD-1553B function FPGA implementation, such as Figure 2 to Figure 4 As shown, the NC is composed of a controller and FC-AE-1553 mod...

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Abstract

The invention relates to an FC-AE-1553 bus and an MIL-STD-1553B bus non-transparent bridging system. An NC end, an NT end and a controlled device node are included. The NC end comprises a controller and an FC-AE-1553 module. The NT end comprises an ARM processor, an FPGA, an MIL-STD-1553B transceiver, a network transformer and an optical fiber communication module. The FPGA is embedded with an IPcore form to realize an FC-AE-1553 communication interface. Operation time carries out time synchronization through an FC-AE-1553 time checking protocol. Under a specific condition, a low-speed 1553Bcontrol bus and a high-speed FC-AE-1553 bus carry out non-transparent bridging to meet the long-distance transmission of control information. An electronic system is an application in remote control during bus high speed communication and is the application of the mutual conversion of high and low speed buses.

Description

technical field [0001] The invention relates to aerospace information transmission technology, in particular to a non-transparent bridging system between FC-AE-1553 bus and MIL-STD-1553B bus. Background technique [0002] In aerospace systems, a large number of electronic buses are used to transmit data and control signals. For example, MIL-STD-1553B (1553B) bus, 1553B has the characteristics of high reliability and high real-time performance. It uses copper shaft to transmit communication signals. The working frequency is 1Mb / s. It adopts Manchester II code and works in half-duplex mode. The 1553B data bus uses a command / response communication protocol. The transmission distance of the 1553B bus system can reach up to 200m, and the stub transmission distance is about 6m, which cannot meet the special requirements of the remote control system in some occasions, and the cable is a coaxial cable, which is heavy and bulky. Selecting FC-AE-1553 bus transmission can ensure the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46
CPCH04L12/4625
Inventor 张智勇王虹
Owner BEIJING INST OF COMP TECH & APPL
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