CN115543888A - Airborne test system based on MiniVPX framework - Google Patents

Airborne test system based on MiniVPX framework Download PDF

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Publication number
CN115543888A
CN115543888A CN202211126299.6A CN202211126299A CN115543888A CN 115543888 A CN115543888 A CN 115543888A CN 202211126299 A CN202211126299 A CN 202211126299A CN 115543888 A CN115543888 A CN 115543888A
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Prior art keywords
board card
board
trigger
module
main control
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CN202211126299.6A
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CN115543888B (en
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魏德宝
张京超
任杰
刘旺
乔立岩
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Harbin Institute of Technology
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Harbin Institute of Technology
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4063—Device-to-bus coupling
    • G06F13/4068—Electrical coupling
    • G06F13/4081—Live connection to bus, e.g. hot-plugging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
    • B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
    • B64F5/60—Testing or inspecting aircraft components or systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • G06F1/12—Synchronisation of different clock signals provided by a plurality of clock generators
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/20—Cooling means
    • G06F1/203—Cooling means for portable computers, e.g. for laptops
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Transportation (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)

Abstract

An airborne test system based on a MiniVPX framework relates to the technical field of airborne test systems of airplanes. The problem of current airborne test system is bulky is solved. The intelligent power supply system comprises a back plate, a master control board card, a function board card, a power supply board card, a storage board card, a switching board card and a trigger board card; the back board comprises a double slot position interface unit, a single slot position interface unit, a PCIe bus, an SMBus bus and a SATA bus; the main control board card, the power supply board card and the switching board card are all embedded in the double-slot interface unit, the storage board card, the triggering board card and the function board card are all embedded in the single-slot interface unit, the main control board card is connected with the data end of the function board card through the PCIe bus, the main control board card is further connected with the auxiliary data end of the function board card through the SMBus bus, and the storage board card is connected with the main control board card through the SATA bus.

Description

Airborne test system based on MiniVPX framework
Technical Field
The invention relates to the technical field of an airborne test system of an airplane.
Background
Present airborne test system has that test parameter kind is many, the test record data volume is big, airborne environment used repeatedly, the characteristics that data processing work load is big, in airborne test system, test system's size more and more receives concerns, the problem that traditional airborne test system ubiquitous is bulky, when reducing the volume, heat dissipation problem and the storage capacity problem that bring also need be considered, guarantee that test system can adapt to the test flight test work of big frequency.
The traditional airborne test system takes PXI and VPX as frameworks, has the problems of large volume and inconvenience for portable movement, and does not adopt a high-speed bus for data transmission.
Disclosure of Invention
The invention provides an airborne test system based on a MiniVPX framework, which solves the problem that the existing airborne test system is large in size.
In order to achieve the purpose, the invention provides the following schemes:
a kind of airborne test system based on MiniVPX framework, the said test system includes the slab, master control board card, function board card, power board card, memory board card, switching board card and trigger the board card;
the back board comprises a double slot position interface unit, a single slot position interface unit, a PCIe bus, an SMBus bus and a SATA bus;
the double-slot interface unit comprises a main control slot interface, a power slot interface and a switching slot interface;
the single slot interface unit comprises a functional slot interface, a storage slot interface and a trigger slot interface;
the main control board card is embedded in the main control slot interface, the power supply board card is embedded in the power supply slot interface, the storage board card is embedded in the storage slot interface, the trigger board card is embedded in the trigger slot interface, the function board card is embedded in the function slot interface, and the adapter board card is embedded in the adapter slot interface;
the main control board card is connected with the data end of the function board card through the PCIe bus and used for controlling the function board card to complete data acquisition and test and process the data, and the main control board card is also connected with the auxiliary data end of the function board card through the SMBus bus and used for realizing auxiliary data transmission;
the storage board card is connected with the main control board card through the SATA bus and used for realizing data storage;
the main control board card is connected with the trigger board card through an Aurora protocol on the back plate and is used for controlling the trigger of the trigger board card;
the power supply board card is connected with the main control board card, the function board card, the storage board card and the trigger board card through the back plate and used for providing a working power supply for the main control board card, the function board card, the storage board card, the switching board card and the trigger board card.
Further, in a preferred embodiment, the main control board includes a core board, a main control board interface module, a main control board core main control module, a MiniVPX connector, and a main control board power module;
the core board is connected with the MiniVPX connector through the main control carrier board interface module to realize data interaction;
the core board is connected with the main control board core main control module through the main control board interface module to realize data interaction;
the core board is further connected with the MiniVPX connector through the main control carrier board module, and data interaction is achieved.
Further, in a preferred embodiment, the interface module of the main control carrier includes an ethernet transformer, a USB Buffer, a PTN3363, and an FT232;
the core board is connected with the adapter board card through the Ethernet transformer, and data interaction is realized by utilizing a gigabit network port;
the core board is connected with the USB interface of the MiniVPX connector through the USB Buffer to realize data interaction;
the core board is connected with the HDMI interface of the MiniVPX connector through the PTN3363 to realize data interaction;
the core board is connected with the main control module of the main control carrier board through the FT232 to achieve data interaction.
Further, in a preferred embodiment, the test system further includes a front panel assembly, where the front panel assembly includes a plurality of front panels, and the front panels are connected to the main control board card, the function board card, the power board card, the storage board card, the trigger board card and the adapter board card respectively;
the switching board card switches the switching interface on the front panel of the switching board card.
Further, in a preferred embodiment, the storage board card includes a pulling aid, a solid state disk, a cold conducting slot, a power supply slot and a data slot;
the pulling-out aid is arranged on the side surface of the storage board card and is used for facilitating the plugging and the unplugging of the storage board card;
the data slot is used for caching data and sending the data to the solid state disk for storage;
the power supply slot provides working power supply for the data slot and the solid state disk;
the cold guide groove is arranged around the solid state disk and used for realizing heat dissipation.
Further, in a preferred embodiment, the functional board card is an RS485 bus communication component or an ARINC429 bus communication component;
the RS485 bus communication assembly is used for acquiring and transmitting RS485 communication data;
the ARINC429 bus communication component is used for collecting and transmitting ARINC429 communication data.
Further, in a preferred embodiment, the ARINC429 bus communication component includes an FPGA module, an ARINC429 protocol chip, a driver chip and a power supply circuit module;
the FPGA module is connected with the ARINC429 protocol chip and is used for providing parameter initialization configuration for the protocol chip;
the ARINC429 protocol chip is connected with the FPGA module, and is used for realizing a data sending function through the driving chip and receiving data;
and the power supply circuit module is used for supplying power to the FPGA module, the protocol chip and the driving chip.
Further, in a preferred embodiment, the trigger board includes a power module, a clock distribution module, a control module, a storage module, an interface module, and a connector;
the trigger bus unit of the interface module comprises a trigger bus, a CPU board card, a trigger board card and at least two function board cards;
the at least two functional board cards are connected in series, the functional board cards sequentially send trigger signals to the next functional board card, the last functional board card sends the trigger signals to the CPU board card, and the first functional board card is used for responding to the trigger signals sent by the trigger board cards;
the CPU board card, the trigger board card and the function board card respectively perform information interaction with the trigger bus;
the CPU board card is used for sending a control signal to the trigger board card;
the trigger board card is used for sending a trigger signal to the first function board card and sending the trigger signal to all the function board cards respectively in a star connection mode. The last functional board card sends a trigger signal to the CPU board card in a point-to-point connection mode, the CPU board card sends the trigger signal to the trigger board card in a point-to-point connection mode, and the trigger board card sends the trigger signal to the CPU board card in a star connection mode.
The power supply module is used for supplying power to the clock distribution module, the control module and the storage module;
the clock distribution module performs information interaction with the connector and is used for performing multi-path forwarding on the received clock signals to each functional board card;
the control module is used for carrying out information interaction with the connector through the interface module and controlling the switching of a clock source of the clock distribution module;
the storage module is used for storing the working information of the trigger board card.
Further, in a preferred embodiment, the power board includes a monitoring module, a DC/DC conversion module, and an enable signal control module;
the monitoring module monitors the voltage and the current of the power supply board card;
when the power supply board card is in overvoltage, overcurrent or short circuit, the power supply board card is protected;
the DC/DC conversion module converts the voltage of the onboard input power supply into various direct-current voltages required by each board card in the onboard test system;
the enabling signal control module provides +12V and +3.3V direct-current power supplies for the back plate.
Further, in a preferred embodiment, the test system has a length of 245.0mm, a width of 116.9mm and a height of 143.7mm.
The invention has the beneficial effects that: the invention provides an airborne test system based on a MiniVPX framework, which solves the problem of large volume of the existing airborne test system.
The following advantages are simultaneously generated:
1. compared with the conventional PXI and VPX-based on-board test system. The invention provides an airborne test system based on a MiniVPX framework, which is 245.0mm long, 116.9mm wide and 143.7mm high.
2. The invention provides an airborne test system based on a MiniVPX framework, which utilizes a main control board card to control a function board card to collect data and test and process the data, wherein the main control board card adopts a mother-son board design, and the daughter board is a core board and is used for realizing the test and processing of the data; the motherboard is a carrier plate which comprises a USB module, an Ethernet module and an HDMI module and is used for realizing data transmission and solving the problem of heat dissipation caused by the dense body type small chips.
3. The invention provides an airborne test system based on a MiniVPX framework, which is triggered by a trigger board card and provides a reference clock for a function board card, has the advantage of supporting a TSN and IEEE1588 synchronous clock protocol, and can ensure the instantaneity and the synchronism of airborne test data.
4. The invention provides an airborne test system based on a MiniVPX framework, which utilizes a power supply board card to provide a working power supply, wherein the power supply board card has a wider input range, is suitable for an airborne direct-current power supply application scene, supports power distribution management, and has overvoltage, overcurrent and short-circuit protection functions;
5. the invention provides an airborne test system based on a MiniVPX framework, which utilizes a storage board card to store airborne data, wherein the storage board card adopts a large-capacity solid storage design, is provided with a pulling aid for easy disassembly, is also provided with a heat conduction groove, can be subjected to hot plugging immediately after the data storage is finished, can be connected to an upper computer through a USB through a switching box, and simultaneously inserts a standby storage card into the system for working again.
6. The invention provides an airborne test system based on a MiniVPX framework, which utilizes a switching board card to realize HDMI local video output and USB interface expansion functions.
The invention is suitable for the field of airborne test systems.
Drawings
Fig. 1 is a schematic structural diagram of an onboard test system based on a MiniVPX architecture according to an embodiment;
fig. 2 is an electrical schematic diagram of an onboard test system based on the MiniVPX architecture according to the first embodiment;
fig. 3 is an electrical schematic diagram of the connection between the main control board card and the functional board card according to the first embodiment;
FIG. 4 is a schematic structural diagram of a back plate according to the first embodiment;
fig. 5 is an electrical schematic diagram of the main control board card according to the second and third embodiments;
fig. 6 is a schematic structural diagram of a storage board according to a fifth embodiment;
fig. 7 is an electrical schematic diagram of an ARINC429 bus communication assembly according to the seventh embodiment;
fig. 8 is a schematic connection diagram of the trigger board according to the eighth embodiment;
fig. 9 is an electrical schematic diagram of the trigger board according to the eighth embodiment;
fig. 10 is an enable signal control diagram of the power board according to the ninth embodiment.
Detailed Description
The first embodiment is described with reference to fig. 1, fig. 2, fig. 3, and fig. 4, and the first embodiment provides an onboard test system based on a MiniVPX architecture, where the test system includes a backplane, a master control board, a function board, a power board, a storage board, a transfer board, and a trigger board;
the back plate comprises a double-slot interface unit, a single-slot interface unit, a PCIe bus, an SMBus bus and an SATA bus;
the double-slot interface unit comprises a main control slot interface, a power slot interface and a switching slot interface;
the single slot interface unit comprises a functional slot interface, a storage slot interface and a trigger slot interface;
the main control board card is embedded in the main control slot interface, the power supply board card is embedded in the power supply slot interface, the storage board card is embedded in the storage slot interface, the trigger board card is embedded in the trigger slot interface, the function board card is embedded in the function slot interface, and the switching board card is embedded in the switching slot interface;
the main control board card is connected with the data end of the function board card through the PCIe bus and used for controlling the function board card to complete data acquisition and test and process the data, and the main control board card is also connected with the auxiliary data end of the function board card through the SMBus bus and used for realizing auxiliary data transmission;
the storage board card is connected with the main control board card through the SATA bus and used for realizing data storage;
the main control board card is connected with the trigger board card through an Aurora protocol on the back plate and is used for controlling the trigger of the trigger board card;
the power board card is connected with the main control board card, the function board card, the storage board card and the trigger board card through the back plate and used for providing a working power supply for the main control board card, the function board card, the storage board card, the switching board card and the trigger board card.
This embodiment is when actual application, master control integrated circuit board, function integrated circuit board, power integrated circuit board, storage integrated circuit board, switching integrated circuit board and trigger integrated circuit board embedding on double slot position interface unit or single slot position interface unit on the backplate, double slot position interface unit's width is 23.0mm, single slot position interface unit's width is 11.5mm, and is the interface parallel placement with double slot position interface and single slot, can make test system's volume minimum. The test system takes the main control board card as a calculation control center, the control function board card finishes data acquisition and tests and processes the data, in the actual test process, signals have strict synchronous input and output relations, and the embodiment is favorable for triggering the board card to ensure the real-time performance and the synchronism of airborne test data. In the embodiment, the connection among the board cards is realized by using the back plate, the back plate is provided with a power supply path and a data path, and the power supply board card provides a working power supply for each board card through the back plate; the data path comprises a PCIe bus, an SMBus bus and a SATA bus, the main control board card is connected with the functional board card through the PCIe bus to realize transmission of main data, auxiliary information such as system information between the main control board card and the functional board card is transmitted through the SMBus bus, the main control board card is connected with the storage board card through the SATA bus and used for data storage, the speed supported by the backboard is 8Gbps, and the speed requirement of PCIe bus transmission is met.
The embodiment provides an airborne test system based on a MiniVPX framework, and solves the problem that the existing airborne test system is large in size.
In a second embodiment, the second embodiment is described with reference to fig. 5, and this embodiment exemplifies a main control board card in the MiniVPX framework-based onboard test system in the first embodiment, where the main control board card includes a core board, a main control board interface module, a main control board core main control module, a MiniVPX connector, and a main control board power module;
the core board is connected with the MiniVPX connector through the main control carrier board interface module to realize data interaction;
the core board is connected with the main control board core main control module through the main control board interface module to realize data interaction;
the core board is further connected with the MiniVPX connector through the main control carrier board module, and data interaction is achieved.
In practical application, the main control board is realized by i7-1185GRE, and meanwhile, the main control board is provided with 4 PCIe × 1 buses, so that data transmitted by the functional board can be received and processed, and the data is converted into a corresponding data format and stored in the storage board through the SATA bus. The main control board card is designed by adopting a mother-daughter board structure, the daughter board of the main control board card adopts SOM-7583 as a core board, and the mother board contains a power supply module, an FPGA module and an interface module. The interface module comprises a USB module, an Ethernet module and an HDMI module. The Ethernet module has the functions of enhancing transmission of Ethernet signals, impedance matching, waveform restoration, signal clutter suppression, high voltage isolation and the like, and the completion of data transmission and engineering configuration work is guaranteed. The HDMI module converts the DDI signal into an HDMI signal, so that the display is supported to display the running condition of the main control board card, and the display function when the main control board card is debugged is realized. The USB module is provided with a plurality of USB interfaces, wherein the FPGA module needs 1 JTAG interface as a debugging peripheral interface, also needs 1 USB interface as a transmission interface, in addition needs 1 USB interface as a communication serial port with the FPGA unit, and needs 1 USB interface to be directly used as a communication interface with the FPGA unit.
Referring to fig. 5, a third embodiment is described, where the third embodiment exemplifies a main control carrier board interface module in the onboard test system based on the MiniVPX architecture according to the second embodiment, where the main control carrier board interface module includes an ethernet transformer, a USB Buffer, a PTN3363, and an FT232;
the core board is connected with the adapter board card through the Ethernet transformer, and data interaction is realized by utilizing a gigabit network port;
the core board is connected with the USB interface of the MiniVPX connector through the USB Buffer to realize data interaction;
the core board is connected with the HDMI interface of the MiniVPX connector through the PTN3363 to realize data interaction;
the core board is connected with the main control module of the main control carrier board through the FT232 to realize data interaction.
The embodiment provides an airborne test system based on a MiniVPX framework, wherein the test system utilizes a main control board module to control a functional board card to collect data and test and process the data, the main control board card adopts a mother-son board design, and the daughter board is a core board and is used for realizing the test and processing of the data; the motherboard is a carrier plate which comprises a USB module, an Ethernet module and an HDMI module and is used for realizing data transmission and solving the problem of heat dissipation caused by the dense body type small chips.
In the fourth embodiment, a front panel assembly is added on the basis of the MiniVPX framework-based airborne test system in the first embodiment, wherein the front panel assembly comprises a plurality of front panels which are respectively connected with the main control board card, the functional board card, the power supply board card, the storage board card, the trigger board card and the adapter board card;
the switching board card switches the switching interface to the front panel of the switching board card.
This embodiment is when practical application, every integrated circuit board all increases a front panel, and USB and HDMI have switched to the front panel of switching integrated circuit board, because the miniaturized requirement of MiniVPX leads to the abundant interface of main control integrated circuit board can not expand effectively, consequently increase the front panel and can pass through the switching integrated circuit board with the interface of main control integrated circuit board and carry out the switching, the interface of switching can be for USB interface and HDMI interface, the switching integrated circuit board will change the interface switching and connect on the front panel, carry out signal transmission through the HDMI interface on the front panel to support the display to show the behavior of main control integrated circuit board, realize debugging the display function of main control integrated circuit board.
The embodiment provides an airborne test system based on a MiniVPX framework, and the test system utilizes a switching board card to realize HDMI local video output and USB interface expansion functions.
The fifth embodiment is described with reference to fig. 6, and this embodiment exemplifies a memory board card in the MiniVPX architecture-based onboard test system according to the first embodiment, where the memory board card includes a plug-in unit, a solid state disk, a cold conducting slot, a power supply slot, and a data slot;
the pulling aid is arranged on the side surface of the storage board card and is used for facilitating the plugging and pulling of the storage board card;
the data slot is used for caching data and sending the data to the solid state disk for storage;
the power supply slot provides working power supply for the data slot and the solid state disk;
the cold guide groove is arranged around the solid state disk and used for realizing heat dissipation.
In practical application, the memory card is provided with the pull-out aid, so that the memory card can be easily plugged and pulled out without an external tool. A standard VITA73 board structure is adopted, a SATA3.0 solid state hard disk supporting a hot plug M.2 interface is arranged on a board, the size of the hard disk is 100.0mm multiplied by 69.85mm multiplied by 6.8mm, and the standard SATA interface is adopted. The 2TB solid state disk is mounted, the highest writing speed can reach 530MB/s, the highest reading speed can reach 560MB/s, the power supply voltage is 5V +/-5%, and the power consumption is 2.2W. The memory card can be detached after the data is tested, the solid state disk above the memory card can be connected with a PC computer end through the USB hard disk adapter box after being detached, and the data in the disk can be directly read through the PC end.
In a sixth embodiment, a functional board in the MiniVPX architecture-based onboard test system in the first embodiment is illustrated, where the functional board is an RS485 bus communication component or an ARINC429 bus communication component;
the RS485 bus communication assembly is used for acquiring and transmitting RS485 communication data;
the ARINC429 bus communication component is used for collecting and transmitting ARINC429 communication data.
This embodiment is in the during practical application, and the function board module is RS485 bus communication subassembly or ARINC429 bus communication subassembly, makes things convenient for test system function extension, has strengthened test system's suitability.
The embodiment is described with reference to fig. 7, and the embodiment exemplifies an ARINC429 bus communication component in the MiniVPX architecture-based onboard test system according to the sixth embodiment, where the ARINC429 bus communication component includes an FPGA module, an ARINC429 protocol chip, a driver chip, and a power supply circuit module;
the FPGA module is connected with the ARINC429 protocol chip and is used for providing parameter initialization configuration for the protocol chip;
the ARINC429 protocol chip is connected with the FPGA module, and is used for realizing a data sending function through the driving chip and receiving data;
and the power supply circuit module is used for supplying power to the FPGA module, the protocol chip and the driving chip.
In the ARINC429 bus communication component described in this embodiment, an FPGA is used as a core, an ARINC429 bus interface is realized by using a HI-3220 protocol chip in a matching manner, communication is realized with an upper computer through a high-speed PCIe bus, functional module logic is realized on the FPGA, ARINC429 communication is configured, and parameters such as a communication rate and Label number screening are determined. The embodiment comprehensively considers the application environment and the application purpose of the avionics system: (1) The application environment is an airborne environment, and factors such as miniaturization, reliability, anti-interference capability and the like need to be considered; (2) The application purpose is that pass through high-speed serial ports with the host computer and be connected, and carry out the multichannel of ARINC429 bus data between many equipment and receive and dispatch, realize the conversion of ARINC429 data and serial data, has very big promotion in the aspect of signal processing's real-time and accuracy. The implementation mode adopts FPGA-based design, utilizes FPGA and ARINC429 protocol chip HI-3220 to realize ARINC429 communication logic and PCIe communication logic between the ARINC429 communication logic and an upper computer, adopts E2PROM to carry out communication parameter initialization configuration on the FPGA, enables the FPGA to work in a default working state after being electrified, and enables the upper computer to utilize PCIe to carry out communication parameter configuration on an ARINC429 board card and change the working state of the upper computer.
The eighth embodiment is described with reference to fig. 8 and 9, and the seventh embodiment exemplifies a trigger board in the MiniVPX-architecture-based airborne test system, where the trigger board includes a power module, a clock distribution module, a control module, a storage module, an interface module, and a connector;
the trigger bus unit of the interface module comprises a trigger bus, a CPU board card, a trigger board card and at least two function board cards;
the at least two functional board cards are connected in series, the functional board cards sequentially send trigger signals to the next functional board card, the last functional board card sends the trigger signals to the CPU board card, and the first functional board card is used for responding to the trigger signals sent by the trigger board cards;
the CPU board card, the trigger board card and the function board card respectively perform information interaction with the trigger bus;
the CPU board card is used for sending a control signal to the trigger board card;
the trigger board card is used for sending a trigger signal to the first functional board card and sending the trigger signal to all the functional board cards respectively in a star connection mode. The last functional board card sends a trigger signal to the CPU board card in a point-to-point connection mode, the CPU board card sends the trigger signal to the trigger board card in a point-to-point connection mode, and the trigger board card sends the trigger signal to the CPU board card in a star connection mode.
The power supply module is used for supplying power to the clock distribution module, the control module and the storage module;
the clock distribution module performs information interaction with the connector and is used for performing multi-path forwarding on the received clock signals to each functional board card;
the control module is used for carrying out information interaction with the connector through the interface module and controlling the switching of a clock source of the clock distribution module;
the storage module is used for storing the working information of the trigger board card.
In practical application of the present embodiment, a schematic connection diagram of the trigger board is shown in fig. 8, where the trigger board includes a clock distribution module, a control module, a storage module, a power module, and an interface module. The power module is composed of a power chip and an auxiliary circuit and supplies power to the FPGA and other chips. The storage module is composed of a Flash chip and an E2PROM chip and stores the program bit stream of the FPGA and the configuration information of the board card. The interface module is composed of a trigger bus and a corresponding communication bus which are defined by the connector.
The clock distribution module consists of a plurality of clock driving chips, a clock crystal oscillator and an auxiliary circuit thereof, wherein the clock driving chips distribute signals generated by the clock crystal oscillator or accurate time signals transmitted by the connector in a multi-path manner and enhance the signal driving capability. The clock distribution module also comprises a clock source selection function, and a clock signal generated by a high-stability crystal oscillator on the trigger board card and a reference clock signal transmitted by the main control board card are selected through an FPGA control signal. Output signals of the clock distribution module are transmitted to each functional board card in the case through the connector and the case back plate, and the output signals comprise reference clock signals with various frequencies and accurate time information signals. The control module of the trigger board card takes the FPGA chip as a core to complete the functions of clock distribution module control, generation of various trigger signals and the like. When the testing system based on the MiniVPX architecture is started, the upper computer software is connected with the main control board card through the ethernet port, the network finds each function board card in the case and sends configuration information to the main control board card, and the main control board card sends the configuration information to the function board cards including the trigger board through the communication bus. And then, the upper computer sends control information, the main control board card receives the control information and then sends the control information to the trigger board card, the trigger board card sends a trigger signal, and each functional board card in the case starts to work. When the case is started and the upper computer software does not send control information, the tested equipment sends an external trigger signal to the test system, the corresponding function board card TRIG of the test system triggers the bus to change the waveform, and the main control board card starts the data receiving function of the corresponding function board card and stores the state information after detecting the state change.
An electrical schematic diagram of the trigger board is shown in fig. 9, the trigger board uses a clock distribution module to fan out multiple paths of clock signals to provide a reference clock for the functional board, and the trigger board is a special board based on a MiniVPX airborne test system and is used for providing reference clocks with multiple frequencies, such as PPS signals and trigger signals, for the functional board. The trigger board card acquires trigger information through communication with the main control board card, and acquires the corresponding function board card needing to be triggered after the information is analyzed. The main control module takes the FPGA as a core and is responsible for receiving the control information transmitted by the main control board card, generating a trigger signal corresponding to the trigger bus after analysis and sending the trigger signal to the corresponding functional board card. And realizing three trigger buses, namely a TRIG [2 ], a star trigger bus and a point-to-point trigger line, according to the analyzed information. The trigger wire comprises a TRIG [ 2. The point-to-point trigger line is a local trigger line and is only connected with the adjacent slot position. The TRIG [ 2; when the function board card is triggered by an external signal, the function board card transmits a trigger signal to the trigger bus, and the trigger module transmits related information to the main control module through the Aurora serial bus after receiving the trigger signal.
The star trigger line is used as an independent set of trigger bus, provides a high-precision and low-delay trigger signal for the main control board card and other functional board cards, and meets the low-delay trigger requirement which cannot be realized by TRIG [ 2. The long-line matching technology is used for wiring the star trigger line, so that the trigger time delay of the star trigger line of the trigger board card reaching each function board card is low, and the trigger precision is high. The star trigger line is designed by adopting an LVDS level standard, so that the influence of noise on a trigger signal is reduced. When a trigger signal with high precision and low time delay is needed in the system, the trigger module adopts a star trigger line to send the trigger signal to each functional board card.
The point-to-point trigger line is a daisy chain bus, and the point-to-point trigger line of the trigger board is connected with the main control board and the functional board of the test platform, and the bus provides an additional signal line connected to the backplane connector. The standby trigger line can be used for transmitting trigger signals and can also be used for communicating with corresponding boards. Meanwhile, the signal line is output by the FPGA and led to the MMCX connector to serve as a triggered board card, has expansibility and can be connected with modules in other systems or connected with non-adjacent functional board cards.
The clock distribution module consists of a plurality of clock driving chips and a high-stability crystal oscillator, wherein the on-board crystal oscillator is 10MHz and 100MHz, and the two clock signals are subjected to multi-path forwarding by using the clock driving chips. The PPS signal is generated by the core board of the main control board card and is transmitted to the MiniVPX connector of the trigger module through the back board. And a clock trigger chip in the clock distribution module divides the PPS signal into a plurality of paths of PPS signals and directly transmits the signals into the MiniVPX connector.
The power module realizes the recommended power-on sequence of the FPGA on the basis of supplying power to the components such as the FPGA, the clock driving chip and the like, thereby reducing the instantaneous power during power-on.
The embodiment provides an airborne test system based on a MiniVPX framework, the test system utilizes a trigger board card to trigger, provides a reference clock for a function board card, has the advantage of supporting a TSN and IEEE1588 synchronous clock protocol, and can guarantee real-time performance and synchronism of airborne test data.
The ninth embodiment is described with reference to fig. 10, and is exemplified by a power board in the MiniVPX architecture-based onboard test system in the first embodiment, where the power board includes a monitoring module, a DC/DC conversion module, and an enable signal control module;
the monitoring module monitors the voltage and the current of the power supply board card;
when the power supply board card is in overvoltage, overcurrent or short circuit, the power supply board card is protected;
the DC/DC conversion module converts the voltage of the airborne input power supply into various direct-current voltages required by each board card in the airborne test system;
the enabling signal control module provides +12V and +3.3V direct current power supplies for the back plate.
In practical application, the voltage input range supported by the power supply board card is 18-36V direct current, the power supply technical requirement of the airborne system is met, and the power supply board card provides power supply for the system and other board cards. The fillet design has been used to power strip card casing edge to do benefit to and obtain the appropriate, firm surface coating of adhering to of thickness, the chemical nickel plating has been carried out on the surface, and the power strip card has good ground connection, can ensure power supply system's safety, and input/output filtering measure is perfect, effectively suppresses the production of circuit noise interference, can guarantee the safe work of back level circuit. Each path of DC/DC conversion module output used in the power board card has overvoltage, overcurrent and short-circuit protection functions, and can ensure that a post-stage system cannot be damaged due to overvoltage, overcurrent or short circuit; when one group of the output is in overvoltage, the DC/DC conversion module is forced to stop working, and meanwhile, the monitoring module reports the fault; when one group of output is overcurrent, the DC/DC conversion module enters a current-limiting protection mode, the output voltage is reduced, and the power supply is protected from overcurrent damage; when one group of output short-circuit and overcurrent occurs, the DC/DC conversion module enters a hiccup type protection mode and can automatically recover to work after overcurrent protection and short-circuit protection actions, and overvoltage protection requires that a power supply power-on party can normally work after the fault is cleared. The enable signal control of the power board is shown in fig. 10, and provides +12V and +3.3V dc power for the backplane of the MiniVPX test system.
Embodiment ten this embodiment exemplifies the dimensions of the MiniVPX-based onboard test system of embodiment 1, wherein the test apparatus has a length of 245.0mm, a width of 116.9mm and a height of 143.7mm.
This embodiment provides an airborne test system based on MiniVPX framework, test system put length be 245.0mm, wide for 116.9mm, high for 143.7mm, have small advantage, be fit for narrow and small space's airborne environment.
The above description is only an example of the present invention, and is not limited to the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention. Are intended to be included within the scope of the claims.

Claims (10)

1. An airborne test system based on a MiniVPX framework is characterized by comprising a back plate, a main control board card, a function board card, a power supply board card, a storage board card, a switching board card and a trigger board card;
the back board comprises a double slot position interface unit, a single slot position interface unit, a PCIe bus, an SMBus bus and a SATA bus;
the double-slot interface unit comprises a main control slot interface, a power slot interface and a switching slot interface;
the single slot interface unit comprises a functional slot interface, a storage slot interface and a trigger slot interface;
the main control board card is embedded in the main control slot interface, the power supply board card is embedded in the power supply slot interface, the storage board card is embedded in the storage slot interface, the trigger board card is embedded in the trigger slot interface, the function board card is embedded in the function slot interface, and the adapter board card is embedded in the adapter slot interface;
the main control board card is connected with the data end of the function board card through the PCIe bus and used for controlling the function board card to complete data acquisition and test and process the data, and the main control board card is also connected with the auxiliary data end of the function board card through the SMBus bus and used for realizing auxiliary data transmission;
the storage board card is connected with the main control board card through the SATA bus and is used for realizing data storage;
the main control board card is connected with the trigger board card through an Aurora protocol on the back plate and is used for controlling the trigger of the trigger board card;
the power supply board card is connected with the main control board card, the function board card, the storage board card and the trigger board card through the back plate and used for providing a working power supply for the main control board card, the function board card, the storage board card, the switching board card and the trigger board card.
2. The MiniVPX architecture-based airborne test system of claim 1, wherein the master control board comprises a core board, a master control board interface module, a master control board core master control module, a MiniVPX connector and a master control board power module;
the core board is connected with the MiniVPX connector through the master control carrier board interface module to realize data interaction;
the core board is connected with the main control board core main control module through the main control board interface module to realize data interaction;
the core board is further connected with the MiniVPX connector through the main control carrier board module, and data interaction is achieved.
3. The MiniVPX architecture-based airborne test system of claim 2, wherein the master control carrier board interface module comprises an Ethernet transformer, a USB Buffer, PTN3363 and FT232;
the core board is connected with the adapter board card through the Ethernet transformer, and data interaction is realized by utilizing a gigabit network port;
the core board is connected with a USB interface of the MiniVPX connector through the USB Buffer to realize data interaction;
the core board is connected with the HDMI interface of the MiniVPX connector through the PTN3363 to realize data interaction; the core board is connected with the main control module of the main control carrier board through the FT232 to achieve data interaction.
4. The MiniVPX architecture-based airborne test system of claim 1, wherein the test system further comprises a front panel assembly, the front panel assembly comprising a plurality of front panels, which are connected with the main control board, the function board, the power board, the storage board, the trigger board and the adapter board respectively;
the switching board card switches the switching interface on the front panel of the switching board card.
5. The MiniVPX architecture-based airborne test system of claim 1, wherein the storage board card comprises a plug-in unit, a solid state disk, a cold conducting slot, a power slot and a data slot;
the pulling aid is arranged on the side surface of the storage board card and is used for facilitating the plugging and pulling of the storage board card;
the data slot is used for caching data and sending the data to the solid state disk for storage;
the power supply slot provides a working power supply for the data slot and the solid state disk;
the cold guide groove is arranged around the solid state disk and used for realizing heat dissipation.
6. The MiniVPX architecture-based airborne test system of claim 1, wherein the functional board is an RS485 bus communication component or an ARINC429 bus communication component;
the RS485 bus communication component is used for collecting and sending RS485 communication data;
the ARINC429 bus communication component is used for collecting and transmitting ARINC429 communication data.
7. The MiniVPX architecture-based airborne test system of claim 6, wherein the ARINC429 bus communication component comprises an FPGA module, an ARINC429 protocol chip, a driver chip and a power supply circuit module;
the FPGA module is connected with the ARINC429 protocol chip and is used for providing parameter initialization configuration for the protocol chip;
the ARINC429 protocol chip is connected with the FPGA module, and is used for realizing a data sending function through the driving chip and receiving data;
and the power supply circuit module is used for supplying power to the FPGA module, the protocol chip and the driving chip.
8. The MiniVPX architecture-based airborne test system of claim 7, wherein the trigger board comprises a power module, a clock distribution module, a control module, a storage module, an interface module and a connector;
the trigger bus unit of the interface module comprises a trigger bus, a CPU board card, a trigger board card and at least two function board cards;
the at least two functional board cards are connected in series, the functional board cards sequentially send trigger signals to the next functional board card, the last functional board card sends the trigger signals to the CPU board card, and the first functional board card is used for responding to the trigger signals sent by the trigger board cards;
the CPU board card, the trigger board card and the function board card respectively perform information interaction with the trigger bus;
the CPU board card is used for sending a control signal to the trigger board card;
the trigger board card is used for sending a trigger signal to the first function board card and sending the trigger signal to all the function board cards respectively in a star connection mode. The last functional board card sends a trigger signal to the CPU board card in a point-to-point connection mode, the CPU board card sends the trigger signal to the trigger board card in a point-to-point connection mode, and the trigger board card sends the trigger signal to the CPU board card in a star connection mode.
The power supply module is used for supplying power to the clock distribution module, the control module and the storage module;
the clock distribution module performs information interaction with the connector and is used for performing multi-path forwarding on the received clock signals to each functional board card;
the control module is used for carrying out information interaction with the connector through the interface module and controlling the switching of a clock source of the clock distribution module;
the storage module is used for storing the working information of the trigger board card.
9. The MiniVPX architecture-based airborne test system of claim 1, wherein the power board comprises a monitoring module, a DC/DC conversion module and an enable signal control module;
the monitoring module monitors the voltage and the current of the power supply board card;
when the power supply board card is in overvoltage, overcurrent or short circuit, the power supply board card is protected;
the DC/DC conversion module converts the voltage of the airborne input power supply into various direct-current voltages required by each board card in the airborne test system;
the enabling signal control module provides +12V and +3.3V direct current power supplies for the back plate.
10. The MiniVPX architecture-based airborne test system of claim 1, wherein the test system has a length of 245.0mm, a width of 116.9mm and a height of 143.7mm.
CN202211126299.6A 2022-09-16 2022-09-16 Airborne test system based on MiniVPX framework Active CN115543888B (en)

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