Optical communication bus network for avionic equipment

A technology of avionics equipment and avionics system, which is applied in the field of optical communication bus network for avionics equipment, and can solve problems such as not being widely used

Inactive Publication Date: 2009-02-25
AIRBUS OPERATIONS (SAS)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Optical communication bus, which shows the advantages of mass per unit length in terms of information rate and insensitivity to electromagnetic radiation, but has not been widely used in the field of ci...

Method used

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  • Optical communication bus network for avionic equipment
  • Optical communication bus network for avionic equipment
  • Optical communication bus network for avionic equipment

Examples

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Embodiment approach

[0054] In a specific embodiment of the invention, the avionics 10a, 10b are modified so that a voltage can be superimposed on a signal on at least one electrical contact of the connector of the avionics 10, the optical communication bus 20 The terminal connector 30 should be connected to this electrical contact. The advantage is that the supply voltage is applied between the electrical contact of the connector considered by the avionics device 10 and the electrical ground of this connector, which is normally connected to the electrical ground of the device 10 . It is also possible to apply a voltage between two electrical contacts of the considered connector of the avionics 10 . Such a DC or quasi-DC voltage according to the frequency of the carrier signal of the information transmitted on the communication bus is undoubtedly of the nature of the digital signal transmitted and can be incorporated into the optical communication bus 20 directly via the internal power supply of t...

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PUM

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Abstract

The invention relates to an avionic system for an aircraft comprising at least two pieces of equipment (10a, 10b) which can exchange information by means of at least one electrical bus for simultaneous bidirectional communication, in which the information can be exchanged between pieces of equipment (10a, 10b) via an optical bus (20) that can be connected to the electrical interfaces (11a, 11b) of said equipment. The optical bus (20) of the avionic system comprises at least one optical cable (21) consisting of at least one optical fibre (22) and, at each end, a connector (30) comprising means(41, 42, 45, 46) for converting electrical signals into optical signals and means for converting optical signals into electrical signals. The optical bus (20) is connected to the electrical outlets of existing equipment.

Description

technical field [0001] The invention relates to a device for connecting avionics on board an aircraft via an optical communication bus network when these devices are designed to communicate via an electronic bus network, without requiring changes to the avionics described above. Background technique [0002] Civilian aircraft are currently turning heavily to digital technology. Various devices incorporating electronic communication interfaces, such as calculators or other equipment equipped with microprocessors, microcontrollers or digital interfaces, which enable command, control and surveillance functions on board aircraft and exchange information on digital buses. [0003] The most commonly used buses are electronic buses using cables with metal conductor cores, usually brass or aluminum. Digital data is transmitted in the form of voltage changes. The reliability of electronic bus technology, in particular serial bus or encoded information being transmitted continuously...

Claims

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Application Information

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IPC IPC(8): G02B6/42G06F13/38H04B10/12H04B10/2581
CPCG02B6/4246G02B6/4284
Inventor G·图尼耶
Owner AIRBUS OPERATIONS (SAS)
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