RU2716033C1 - Standard aviation interface module - Google Patents

Abstract

FIELD: computer equipment.

SUBSTANCE: invention relates to computer engineering. Technical result is achieved by a module of standard aircraft interfaces, which comprises a carrier module, which is a printed circuit board, on which are located end connector of receiving and issuing discrete signals and signals of physical level of aircraft interfaces, connectors for connection of signals of physical level of mezzanines, connectors series PLD for connection of intermediate buses of mezzanines, PBD series connectors for connection of computing device, built-in discrete signals physical level conversion unit + 27V/break and Housing/rupture, connector for receiving and transmitting logic levels of discrete signals, and the module of typical aviation interfaces includes a computing device with PCI Express bus, connectors for connection of SFP-modules, connectors compatible with single-board computer of type Raspberry Pi.

EFFECT: technical result consists in expansion of functional capabilities due to possibility of connection to optical or copper communication lines for data exchange via AFDX network, Ethernet and possibility of connection of mezzanines with set of interfaces compatible with computer of Raspberry Pi type.

1 cl, 1 dwg

Description

The present invention relates to the field of testing equipment and is intended for the development and testing of aircraft equipment on the systems of semi-natural modeling, the deployment of multi-level data processing systems with high scalability.

During the development and testing of aircraft equipment on the semi-natural modeling complexes, there is a need to simulate the information environment for units and systems of real on-board equipment, typical for various flight modes, including data integration with a wide range of aviation interfaces, intermediate calculations and their transfer in a unified form through standard interfaces (PCI Express, Ethernet, AFDX) to an external host. Aviation interfaces are combined into logical subsystems that require an intermediate data center. A typical aircraft subsystem contains two or more heterogeneous or duplicate aviation interfaces, the most common of which is a set of discrete signals + 27V / gap and housing / gap, an AFDX network interface for networking with other subsystems, as well as a single high-speed PCI Express interface for communication with a personal computer (PC) that performs data integration tasks at the level of the entire complex. This means that the computing resources of the PC for each individual subsystem are limited, and all basic calculations and data processing must be carried out inside the subsystem (module of typical aviation interfaces) with a minimum load on the PC.

The analogue is known from the prior art for the AcroPack APCe7000 Series module, which contains a carrier module, which is a printed circuit board on which are located: an end connector for receiving and outputting external signals, mini PCI Express connectors for connecting mezzanines to the PCI Express bus, the input bus PCI Express output for connecting to a personal computer. Also, the aforementioned analogue contains mezzanines, which are printed circuit boards on which are located: connectors for receiving and issuing external signals from the end connector, interface microcircuits.

The disadvantages of this device include:

- lack of a separate computing device (processor module), thus, the main computing load falls on the PC;

- Connectors with a mini PCI Express interface are used, which is more demanding on the topology of the printed circuit board, the length of the communication line and takes more conclusions than the Raspberry Pi-compatible set of interfaces connected to the connectors used in the proposed invention for connecting mezzanines;

- lack of connectors for connecting SFP modules, on the basis of which connection to optical or copper communication lines is realized for data exchange via the AFDX, Ethernet network.

The problem to which the claimed technical solution is directed is to build a universal unit for semi-natural modeling systems that implements an arbitrary subsystem of typical aviation interfaces in the form of a set of discrete signals + 27V / gap and housing / gap (without mezzanines) or a set of discrete signals + 27V / gap and case / gap with one or more additional interfaces (with mezzanines installed) integrated with software-configurable data processing and exchange tools over the network and over Interface PCI Express.

The technical result consists in expanding the functionality by transferring the main computing load to the computing device, connecting to optical or copper communication lines for data exchange via the AFDX, Ethernet network, and connecting mezzanines with a set of interfaces compatible with Raspberry Pi.

The described technical result is achieved due to the fact that the module of typical aviation interfaces contains a carrier module, which is a printed circuit board, on which are located: an end connector for receiving and issuing discrete signals and signals of the physical level of aviation interfaces, connectors for connecting signals of the physical level of mezzanines, PLD series connectors for connecting mezzanine busbars, PBD series connectors for connecting a computing device, built-in physical layer conversion unit + 27V / burst and Housing / burst signals, a connector for receiving and transmitting logic levels of discrete signals, also a typical aviation interface module contains a computing device with a PCI Express bus, connectors for connecting SFP modules, connectors compatible with a single-board computer such as Raspberry Pi at the same time, connectors for connecting signals of the physical level of mezzanines and an integrated unit for converting physically level of discrete signals + 27V / gap and case / gap, which is connected in series with a connector for receiving and transmitting logic levels of discrete signals, and a computing device, while the said computing device is connected to the PCI Express bus, SFP module connectors and connectors compatible with a single-board computer such as Raspberry Pi, while the computing device through connectors compatible with a single-board computer such as Raspberry Pi, is connected to the PBD series connectors for computing tion devices, which are connected with connectors for connecting the PLD series of intermediate tires mezzanines.

The invention is illustrated by a drawing (Fig.), Which shows a block diagram of a module of typical aviation interfaces, then the TAI module, which shows:

1 - carrier module;

2 - mezzanines;

2.1 - inputs of the physical layers of aviation interfaces;

2.2 - a set of interfaces compatible with Raspberry Pi .;

3 - end connector for receiving and issuing discrete signals and signals of the physical layer of aviation interfaces;

4 - connectors for connecting signals of the physical level of mezzanines;

5 - connectors of the PLD series for connecting intermediate mezzanine buses;

6 - PBD series connectors for connecting a computing device;

7 - built-in unit for converting the physical level of discrete signals + 27V / gap and Case / gap;

8 - connector for receiving and transmitting logical levels of discrete signals;

9 - computing device;

10 - connector compatible with a single-board computer such as Raspberry Pi;

11 - external signals of aviation interfaces;

12 - PCI Express bus;

13 - connectors for connecting SFP-modules;

14 - network interface for communication with remote nodes;

15 - remote node (subscriber).

The TAI module is implemented as follows.

External signals of the aviation interfaces 11 are fed to the end connector for receiving and issuing discrete signals and signals of the physical layer of the aviation interfaces 3 of the carrier module 1, then they are transferred via printed conductors to the block for converting the physical level of the binary signals + 27V / gap and case / gap 7, where levels of input signals are coordinated for their further processing. The converted input signals are fed to the connector for receiving and transmitting logical levels of discrete signals 8 and transmitted to the computing device 9, where they are processed and issued to the PC via the PCI Express 12 interface bus.

To generate discrete signals, a control command is generated from the PC, which is transmitted via the PCI Express 12 bus to the computing device 9. Computing device 9 converts the control command via the PCI Express 12 bus into discrete control signals, which are transmitted through the slot for receiving and transmitting logical levels of discrete signals 8 via printed conductors, the + 27V / gap and case / gap 7 discrete signals are converted to the physical layer conversion unit 7. In the conversion unit 7, the + 27V / gap output signal and the Case / gap, which arrives at the input-output connector of discrete signals and signals of the physical level of aviation interfaces 3.

To work with remote nodes 15, the TAI module is connected to an external network using optical or copper communication lines, depending on the installed SFP modules, in the slots for connecting the SFP modules 13 on computing device 9. Signals received through the network are converted into SFP modules for their further digital processing, then the computing device 9 processes them and generates response data, which are transmitted via communication lines to remote nodes 15.

In the presence of mezzanines, the TAI module can work with various aviation interfaces, depending on the software and hardware capabilities of the mezzanines 2. External signals of the aviation interfaces 11 are fed to connector 3 of the carrier module 1, then they are transferred via printed conductors to the connectors for connecting physical layer signals mezzanines 4, and then fed to the mezzanines 2. On the mezzanines 2, the signals of the aviation interfaces 11 are processed using the firmware of the mezzanines 2 or under the control of a computing device tva 9. Control signals, on mezzanines 2, come through PLD series connectors with a compatible Raspberry Pi set of interfaces 5, which are connected by printed conductors to PBD series connectors with a compatible Raspberry Pi set of interfaces for connecting a computing device 6. Processed signals of aviation interfaces 11, when necessary, issued back through the series-connected connectors 4 and 3 to external aircraft equipment.

Claims (1)

A module of typical aviation interfaces, characterized in that it contains a carrier module, which is a printed circuit board on which there is an end connector for receiving and outputting discrete signals and signals of the physical level of aviation interfaces, connectors for connecting physical level signals of mezzanines, PLD series connectors for connecting intermediate mezzanine buses, PBD series connectors for connecting a computing device, built-in unit for converting the physical level of discrete signals + 27V / gap and case / ra a gap, a connector for receiving and transmitting logical levels of discrete signals, also a module of typical aviation interfaces contains a computing device with a PCI Express bus, connectors for connecting SFP modules, connectors compatible with a single-board computer of the Raspberry Pi type, and to an end receiving-output connector discrete signals and signals of the physical level of the aviation interfaces, connectors for connecting signals of the physical level of mezzanines and an integrated unit for converting the physical level of discrete signals + 27V / p are connected a gap and a case / gap that is connected in series with a connector for receiving and transmitting logic levels of discrete signals and a computing device, while the computing device is connected to a PCI Express bus, connectors for connecting SFP modules, and connectors compatible with a single-board computer such as Raspberry Pi while the computing device through connectors compatible with a single-board computer such as Raspberry Pi, is connected to the connectors of the PBD series for connecting a computing device that is connected PLD series with connectors for connecting the intermediate tires mezzanines.

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