Multi-type communication interface integration device and application method

Abstract

The invention provides a multi-type communication interface integration device and an application method, and relates to the technical field of spaceflight testing, and the device comprises an interface processing board which is connected with multi-type communication interfaces, and the communication interfaces comprise an LVDS interface, a synchronous RS422 interface, an asynchronous RS422 interface, a CAN interface, and / or a PPS / PPMS interface; the control main board communicates with the interface processing board and carries upper computer software; the control mainboard runs upper computer software to generate an instruction and sends the instruction to the interface processing board, after the instruction is analyzed through the interface processing board, working parameters are configured, data interaction with all communication interfaces is carried out, and the problems that an existing multi-type interface testing device needs to integrate a plurality of modules or devices and is complex in structure and operation are solved.

Description

Technical Field

[0001] The present invention relates to the field of aerospace testing technology, and in particular to a multi-type communication interface integration device and an application method. Background Art

[0002] At present, satellite communication interface tests are mainly divided into two categories: one is a single-function interface device, which mainly realizes the communication function of a single type of interface; the other is an integrated interface test device based on the PXI / PCI architecture; single-function interface devices (such as RS422, CAN, etc.) can only realize one type of interface communication test, and an external test computer and related software are required to realize the test function. If multiple types of interface tests are to be performed, the test computer needs to be connected to multiple communication devices. This method has poor integration, chaotic equipment form, and is prone to connection errors. Although digital communication test equipment based on the PXI / PCI architecture can realize multiple types of interface tests, it usually includes one or more modules and always needs to be equipped with equipment such as a chassis and a controller module. The operation is complicated, the cost is high, and it takes up a large space. Summary of the invention

[0003] In order to overcome the above technical defects, the purpose of the present invention is to provide a multi-type communication interface integration device and application method to solve the problem that the existing multi-type interface testing device needs to integrate multiple modules or devices, has a complex structure and complex operation.

[0004] The present invention discloses a multi-type communication interface integrated device, comprising:

[0005] An interface processing board, connected to multiple types of communication interfaces, including an LVDS interface, a synchronous RS422 interface, an asynchronous RS422 interface, a CAN interface, and / or a PPS / PPMS interface;

[0006] A control main board, communicating with the interface processing board, and equipped with host computer software;

[0007] The control mainboard runs the host computer software to generate instructions and sends them to the interface processing board. The interface processing board parses the instructions and configures working parameters to exchange data with each communication interface.

[0008] Preferably, the interface processing board includes a processing chip and a transmitter and a receiver corresponding to each communication interface;

[0009] The processing chip includes a processing unit and a programmable logic unit communicating with each other:

[0010] The programmable logic unit is also provided with functional modules corresponding to each communication interface, and connected to the transmitter and receiver corresponding to each communication interface, wherein the functional modules include an LVDS transceiver module, a synchronous RS422 transceiver module, an asynchronous RS422 transceiver module, a CAN transceiver module and / or a PPS / PPMS generation module;

[0011] The functional module configures the working parameters according to the parsed instructions.

[0012] Preferably, the processing chip adopts a ZYNQ chip;

[0013] The processing unit and the programmable logic unit are connected via an AXI bus;

[0014] The processing unit establishes communication with the control mainboard based on the UDP protocol.

[0015] Preferably, the interface processing board is also provided with a local storage area for storing instructions, parsed instructions, working parameters and / or data interacting with each communication interface.

[0016] Preferably, it also includes a power supply module to provide power to the control main board and the interface processing board.

[0017] The present invention also provides an application method of a multi-type communication interface integrated device, using any of the integrated devices described above, comprising:

[0018] The interface processing board connects various communication interfaces and establishes communication with the control main board;

[0019] The control mainboard runs the host computer software to generate instructions, and sends the instructions to the interface processing board;

[0020] After receiving the instruction, the interface processing board parses and obtains the configuration data and the instruction data;

[0021] Determine the operating parameters of the interface processing board according to the configuration data;

[0022] Data interaction is performed with each communication interface according to the instruction data.

[0023] Preferably, after receiving the instruction, the interface processing board includes:

[0024] The processing unit listens to and parses the instructions, obtains configuration data and sends it to the programmable logic unit;

[0025] The programmable logic unit receives the configuration parameters to configure the working parameters of each functional module therein.

[0026] Preferably, after receiving the instruction, the interface processing board includes:

[0027] The processing unit listens to and parses the instruction, obtains the instruction data to determine the target communication interface, and sends it to the programmable logic unit;

[0028] After receiving the instruction data, the programmable logic unit exchanges data with each target communication interface.

[0029] Preferably, when the instruction of the control mainboard includes obtaining target data;

[0030] The data of each communication interface is sent to the programmable logic unit by the corresponding transmitter and receiver;

[0031] The processing unit obtains data from each communication interface from the programmable logic unit, encapsulates the data using a preset protocol to generate target data, and then sends the data to the control mainboard;

[0032] The control mainboard monitors and receives the target data.

[0033] Preferably, after receiving the instruction, the interface processing board stores the instruction, the parsed instruction, the working parameters and / or the data interacting with each communication interface in the local storage area.

[0034] Compared with the prior art, the above technical solution has the following beneficial effects:

[0035] A multi-type communication interface integration device and application method provided by the present application integrate an interface processing board that can be connected to multiple types of communication interfaces, a control main board (host computer software), and a power supply module. The operating parameters of each communication interface can be modified after the host computer software is run by the control main board, thereby realizing simple operation. The device is a universal integrated device that can perform multi-type interface tests. The device has a simple structure and can be applied to different satellite test scenarios. It has a wide range of applications and solves the problem that existing multi-type interface testing devices need to integrate multiple modules or devices, have a complex structure, and have complex operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of a module of an embodiment of a multi-type communication interface integration device and an application method according to the present invention;

[0037] Figure 2 A schematic diagram of a module of an interface processing board in an embodiment of a multi-type communication interface integration device and an application method described in the present invention;

[0038] Figure 3 It is a flow chart of an application method in an embodiment of a multi-type communication interface integration device and an application method described in the present invention.

[0039] Reference numerals:

[0040] 1-control main board; 2-interface processing board; 3-power supply module. DETAILED DESCRIPTION

[0041] The advantages of the present invention are further described below in conjunction with the accompanying drawings and specific embodiments.

[0042] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0043] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0044] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0045] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0046] In the following description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present invention, and have no specific meanings. Therefore, "module" and "component" can be used interchangeably.

[0047] Embodiment: This embodiment discloses a multi-type communication interface integration device, which can be used for satellite testing. The interface processing board, control main board, host computer software, and power supply module (optional) are integrated in a box or structure to form an integrated device, which has the characteristics of miniaturization, lightness, integration, and generalization. It realizes the integration of multiple types of communication interfaces including but not limited to LVDS interface, synchronous RS422 interface, asynchronous RS422 interface, CAN interface and / or PPS / PPMS interface, and can realize the integration of LVDS data, RS422 data, CAN data and / or PPS / PPMS data collection / transmission. For details, refer to Figure 1-Figure 2 , the integrated device comprises:

[0048] An interface processing board is used to connect multiple types of communication interfaces, including but not limited to: LVDS interface, synchronous RS422 interface, asynchronous RS422 interface, CAN interface, and / or PPS / PPMS interface, etc., which may be part or all of them. Each communication interface is used to connect a system or device to realize corresponding communication data transmission. As an option, an external port extending from the integrated device for connecting each communication interface can be provided, so that each communication interface can be connected and communicated through the external port, or each communication interface can be extended into the device to connect to the interface processing board, and can be arranged according to the actual scenario.

[0049] The control mainboard, which can be specifically a computer mainboard, communicates with the interface processing board and is equipped with host computer software. It exchanges data with the control mainboard through a communication protocol to realize functions such as data acquisition, monitoring, processing and analysis. The host computer software can be pre-arranged on the control mainboard, or adjusted or updated through communication. The control mainboard is used as a carrier to run the host computer software and execute the satellite test application.

[0050] Optionally, a power supply module, such as an ACDC module, is also included to provide power to the control main board and the interface processing board. It can be understood that the power supply module can be integrated with the above-mentioned control main board and interface processing board to form a highly integrated and universal integrated device, or it can be arranged outside the integrated device of the interface processing board and the control main board, such as connected by wires, etc., or other power supply methods adapted to the application scenario can be adopted. In order to realize portable applications, an integrated arrangement is preferred.

[0051] In this embodiment, based on the above, the control mainboard runs the host computer software to generate instructions and sends them to the interface processing board, and the interface processing board parses the instructions and configures the working parameters, and performs data interaction with each communication interface. The execution by running the host computer includes but is not limited to the following: editing and generating instruction data for sending satellites, editing and generating configuration data for configuring the working parameters of the interface processing board, and receiving and processing data sent by the interface processing board, such as telemetry data, and analyzing and processing; the instructions contain configuration data and instruction data, which are sent to the interface processing board by the control mainboard after running the host computer software, and the interface processing board parses and configures the working parameters, and realizes satellite testing through the control of each communication interface.

[0052] Further, in this embodiment, in order to implement the parsing of the instruction and the communication with each communication interface, refer to Figure 2 The interface processing board includes a processing chip and transmitters and receivers corresponding to various communication interfaces, such as LVDS transmitters and receivers corresponding to LVDS ports, synchronous RS422 transmitters and receivers corresponding to synchronous RS422 ports, asynchronous RS422 transmitters and receivers corresponding to asynchronous RS422 ports, CAN transceivers corresponding to CAN ports, LVDS transmitters and asynchronous 422 transmitters corresponding to PPS / PPMS ports, etc., and can also be optionally replaced with other existing devices that can realize transmission and reception.

[0053] The processing chip includes a processing unit and a programmable logic unit that communicate with each other: in this embodiment, the processing chip adopts a ZYNQ chip; the ZYNQ chip is connected to the computer motherboard through a network cable; the processing unit and the programmable logic unit are connected through an AXI bus; the processing unit establishes communication with the control motherboard based on the UDP protocol, and the ZYNQ chip integrates an ARM processor and an FPGA programmable logic system on a chip, that is, it includes a processing unit PS and a programmable logic unit PL, which has the advantages of high performance and low power consumption. Specifically, the processing unit PS part is used for: such as receiving instruction data and configuration data sent by the upper computer software, parsing configuration data and configuring PL, saving configuration data, sending instruction data to PL, receiving and returning telemetry data sent by PL, etc.; the programmable logic unit PL part realizes the reception and transmission of LVDS interface data, synchronous 422 interface, asynchronous 422 interface data, and CAN interface data; the transmission of PPS / PPMS; receiving the configuration data of PS, modifying its corresponding working parameters, etc.

[0054] The programmable logic unit is also provided with functional modules corresponding to each communication interface, and connected to the transmitter and receiver corresponding to each communication interface, wherein the functional modules include but are not limited to the following: LVDS transceiver module (corresponding to LVDS port, LVDS transmitter and receiver), synchronous RS422 transceiver module (corresponding to synchronous RS422 port, synchronous RS422 transmitter and receiver), asynchronous RS422 transceiver module (corresponding to asynchronous RS422 port, asynchronous RS422 transmitter and receiver), CAN transceiver module (corresponding to CAN port, CAN transceiver) and / or PPS / PPMS generation module (corresponding to For PPS / PPMS port, LVDS transmitter and asynchronous 422 transmitter), each functional module configures working parameters according to the parsed instructions. It can be understood that due to the particularity of the PPS / PPMS port itself, the PPS signal is a time synchronization signal, the function of the PPS port is to ensure the accuracy and consistency of the system time, and the function of the PPMS port is to connect the PPMS system with the sample under test or with other measuring equipment. Therefore, the PPS / PPMS generation module can be controlled according to the configuration data / instruction data. When other port (data) types with specific applications are applied, they can also be configured in a corresponding manner.

[0055] In a preferred embodiment, further, the interface processing board is also provided with a local storage area, which can be a storage RAM / BRAM corresponding to the processing unit / programmable logic unit respectively, or it can be a separate shareable storage area for storing data including but not limited to instructions, parsed instructions, working parameters and / or data interacting with various communication interfaces, etc., for power-on recovery or monitoring.

[0056] Based on the above integrated device, this embodiment also provides an application method of the multi-type communication interface integrated device, using the above integrated device, specifically, refer to Figure 2-Figure 3 , including the following steps:

[0057] S1: The interface processing board connects to each communication interface and establishes communication with the control main board; specifically, the interface processing board can communicate with each communication interface and the control main board through hardware or virtual connection, and specifically, the control main board establishes UDP protocol communication with the interface processing board.

[0058] S2: The control main board runs the host computer software to generate instructions and sends the instructions to the interface processing board; the instructions can be implemented including but not limited to: configuring the interface processing board, specifying the target communication interface to send instruction data or receive data (data interaction), obtaining specific data (target data), such as telemetry data reception and feedback, etc.

[0059] S3: After receiving the instruction, the interface processing board parses and determines the working parameters of the interface processing board and each communication interface, and exchanges data with each communication interface. Specifically, the configuration data and instruction data are obtained by parsing; the working parameters of the interface processing board are determined according to the configuration data; data is exchanged with each communication interface according to the instruction data, wherein the target communication interface can also be determined, and the target communication interface can be part or all of the communication interfaces described in the above-mentioned device.

[0060] In the above steps, in order to realize the storage of data so as to facilitate power-on recovery, fault handling or trajectory monitoring during the test process, the interface processing board stores the instructions, parsed instructions, working parameters and / or data interacting with each communication interface in the local storage area after receiving the instructions. It can be understood that all data generated after the upper computer software is running can be stored, including but not limited to the above, and subsequent data analysis can also be stored.

[0061] Specifically, after receiving the instruction, the interface processing board obtains configuration data and instruction data according to the instruction. As explained, the configuration data is used to configure the working parameters of the interface processing board, and the instruction data is used to transmit instructions to the target communication port (which can be a platform, device, satellite, etc.) to control the test process, such as Figure 2 In the process, the interface processing board performs command data reception and transmission, configuration data analysis and transmission, and telemetry data (the following target data) reception and return, which are divided as follows. The specific processing configuration data includes:

[0062] The processing unit monitors and analyzes the instructions, obtains configuration data and sends it to the programmable logic unit; the programmable logic unit receives the configuration parameters to configure the working parameters of each functional module therein.

[0063] Each functional module is configured according to the above configuration data. Specifically, it can be understood that the configurable parameters of each functional (transceiver) module include but are not limited to the following:

[0064] LVDS transceiver module configuration parameters include: clock rate, clock continuity (constant or intermittent), enable signal high and low level validity configuration (high level enable, low level enable), transceiver mode (rising edge send falling edge receive, falling edge send rising edge receive), etc.

[0065] The configuration parameters of the synchronous RS422 transceiver module include: clock rate, clock continuity (constant or intermittent), enable signal high and low level validity configuration (high level enable, low level enable), transceiver mode (rising edge send falling edge receive, falling edge send rising edge receive), etc.

[0066] The configuration parameters of the asynchronous RS422 transceiver module include: baud rate, start bit, data bit, check bit, stop bit, etc.

[0067] CAN transceiver module configuration parameters include: baud rate, etc.

[0068] The configuration parameters of the PPS / PPMS generation module include: PPS / PPMS generation switching, output type (high pulse, low pulse), pulse width setting, output enable and disable, etc.

[0069] Specifically, after the interface processing board receives the instruction, processing the instruction data includes:

[0070] The processing unit listens to and parses the instruction, obtains instruction data to determine the target communication interface, and sends it to the programmable logic unit; after receiving the instruction data, the programmable logic unit interacts with each target communication interface. It can be understood that the data interaction includes sending the instruction data to each target communication interface to control the equipment / device to perform the satellite test process, and also includes obtaining feedback data from each target communication interface.

[0071] Based on the above, in this implementation mode, as an example, the configuration data execution steps may be as follows: the host computer (control mainboard) edits the configuration data instructions according to the protocol, and sends them to the PS module through the UDP protocol; after the UDP listening module of the PS receives the configuration data, it parses the configuration data; the PS module stores the configuration data locally for power-on recovery; the PS sends the data to the functional module corresponding to the PL through the AXI GP interface; the functional module corresponding to the PL modifies the working parameters after receiving the configuration data; and works according to the new working parameters.

[0072] The execution steps of instruction data can be as follows: the host computer software edits the instruction data and sends it to the PS module of the interface processing board through the UDP protocol; the PS module UDP listening task receives the instruction data sent by the host computer, and performs preliminary analysis on the instruction data to confirm the destination port of the instruction data (LVDS, synchronous 422, asynchronous 422, CAN); the PS module sends the instruction data to the PL corresponding module (data destination port) through the AXI interface; the PL corresponding module receives the instruction data sent by the PS and saves the data in the BRAM; after the PL completes receiving the instruction data, it sends the data in the BRAM according to the configuration parameter format.

[0073] Specifically, as mentioned above, in addition to obtaining the data returned by each communication interface, the control mainboard can also obtain specific data such as telemetry data (as target data) through corresponding control instructions. Therefore, when the instruction of the control mainboard includes obtaining target data (taking telemetry data as an example in this embodiment), the target data can be generated by the data of part or all of the communication interfaces according to the settings of the upper computer software, or the data of the communication interface obtained after configuring the working parameters of the interface processing board, such as data collected / transmitted at a predetermined constant rate and a predetermined baud rate. When it is necessary to obtain the target data, the data of each communication interface is sent to the programmable logic unit by the corresponding transmitter and receiver; the processing unit obtains the data of each communication interface from the programmable logic unit, encapsulates them with a preset protocol to generate target data, and then sends them to the control mainboard; the control mainboard monitors and receives the target data.

[0074] As an example, telemetry data is used as the target data, including: the receiver (including LVDS receiver, synchronous 422 receiver, asynchronous 422 receiver, CAN transceiver) converts the differential signal into a single-ended signal and sends it to the PL module; the PL corresponding transceiver module (LVDS transceiver module, synchronous 422 transceiver module, asynchronous 422 transceiver module, CAN transceiver module) receives the serial signal according to the protocol and converts it into byte data of preset bit width, and writes the byte data into BRAM; after the PL corresponding transceiver modules receive the data, the BRAM data is written into the RAM through the AXI-HP interface; after the PL corresponding transceiver module writes the RAM data, an interrupt signal is sent to the PS module; the PS module determines the data source (LVDS, synchronous 422, asynchronous 422, CAN) according to the received interrupt number, and encapsulates the data according to the predetermined protocol; the PS module sends the encapsulated telemetry data to the host computer software through the UDP protocol; the UDP listening module of the host computer software receives the telemetry data sent by the PS and performs subsequent data processing.

[0075] In this embodiment, the interface function and performance index test of the satellite (single machine, subsystem) is realized by running a preset host computer program to configure the working conditions of the interface processing board and each communication interface.

[0076] Based on the above, a multi-type communication interface integration device provided in this embodiment integrates an interface processing board and a control main board that can be connected to multiple types of communication interfaces. The instructions generated after the upper computer software is run modify the working parameters of each communication interface so that it can communicate with the interface of the satellite under test (stand-alone, subsystem). It is not as complicated as the existing integrated test device that connects multiple modules. Instead, it uses the host computer software to realize the simple operation of communication interface control. It is a universal integrated device that can perform multi-type interface tests. It is used in satellite test scenarios to realize the rapid construction and deployment of the entire test system, improve user testing efficiency, and reduce testing time. The device has a simple structure and can be used in satellite test scenarios of different types and models, and is widely used.

[0077] It should be noted that the embodiments of the present invention have better practicability and do not impose any form of limitation on the present invention. Any technician familiar with the field may use the technical content disclosed above to change or modify it into an equivalent effective embodiment. However, any modification or equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A multi-type communication interface integrated device, characterized in that: include: An interface processing board, connected to multiple types of communication interfaces, including an LVDS interface, a synchronous RS422 interface, an asynchronous RS422 interface, a CAN interface, and / or a PPS / PPMS interface; A control main board, communicating with the interface processing board, and equipped with host computer software; The control mainboard runs the host computer software to generate instructions and sends them to the interface processing board. The interface processing board parses the instructions and configures working parameters to exchange data with each communication interface.

2. The integrated device according to claim 1, characterized in that: The interface processing board includes a processing chip and a transmitter and a receiver corresponding to each communication interface; The processing chip includes a processing unit and a programmable logic unit communicating with each other: The programmable logic unit is also provided with functional modules corresponding to each communication interface, and connected to the transmitter and receiver corresponding to each communication interface, wherein the functional modules include an LVDS transceiver module, a synchronous RS422 transceiver module, an asynchronous RS422 transceiver module, a CAN transceiver module and / or a PPS / PPMS generation module; The functional module configures the working parameters according to the parsed instructions.

3. The integrated device according to claim 2, characterized in that: The processing chip adopts a ZYNQ chip; The processing unit and the programmable logic unit are connected via an AXI bus; The processing unit establishes communication with the control mainboard based on the UDP protocol.

4. The integrated device according to claim 1, characterized in that: The interface processing board is also provided with a local storage area for storing instructions, parsed instructions, working parameters and / or data interacting with various communication interfaces.

5. The integrated device according to claim 1, characterized in that: It also includes a power supply module to provide power to the control main board and the interface processing board.

6. An application method of a multi-type communication interface integrated device, characterized in that: The integrated device according to any one of claims 1 to 5 comprises: The interface processing board connects various communication interfaces and establishes communication with the control main board; The control mainboard runs the host computer software to generate instructions, and sends the instructions to the interface processing board; After receiving the instruction, the interface processing board parses and obtains the configuration data and the instruction data; Determine the operating parameters of the interface processing board according to the configuration data; Data interaction is performed with each communication interface according to the instruction data.

7. The application method according to claim 6, characterized in that: After the interface processing board receives the instruction, it includes: The processing unit listens to and parses the instructions, obtains configuration data and sends it to the programmable logic unit; The programmable logic unit receives the configuration parameters to configure the working parameters of each functional module therein.

8. The application method according to claim 6, characterized in that: After the interface processing board receives the instruction, it includes: The processing unit listens to and parses the instruction, obtains the instruction data to determine the target communication interface, and sends it to the programmable logic unit; After receiving the instruction data, the programmable logic unit exchanges data with each target communication interface.

9. The application method according to claim 6, characterized in that: include: When the command of the control mainboard includes obtaining target data; The data of each communication interface is sent to the programmable logic unit by the corresponding transmitter and receiver; The processing unit obtains data from each communication interface from the programmable logic unit, encapsulates the data using a preset protocol to generate target data, and then sends the data to the control mainboard; The control mainboard monitors and receives the target data.

10. The application method according to claim 6, characterized in that: After receiving the instruction, the interface processing board stores the instruction, the parsed instruction, the working parameters and / or the data interacting with each communication interface in the local storage area.

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