CN112333041A - Space air-to-air communication testing device - Google Patents
Space air-to-air communication testing device Download PDFInfo
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- CN112333041A CN112333041A CN202011142365.XA CN202011142365A CN112333041A CN 112333041 A CN112333041 A CN 112333041A CN 202011142365 A CN202011142365 A CN 202011142365A CN 112333041 A CN112333041 A CN 112333041A
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- H—ELECTRICITY
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Abstract
The invention discloses a space air-to-air communication testing device which is based on a CPCI bus interface and realizes the functions of data simulation synthesis, intermediate frequency modulation and demodulation, algorithm processing, intermediate radio frequency signal frequency conversion, telemetering acquisition, instruction control, bus data communication, data receiving, storage, error code comparison and the like. The device can control the parameters of the test data in real time by configuring the parameter information through the computer, can send and output data with different contents according to the requirements of users, and can receive, analyze and store the received data and the telemetered data in real time. The device has certain commonality, effectively reduces the volume, the weight of current data test system simultaneously, reaches test equipment modularization, miniaturized target.
Description
Technical Field
The present invention relates to a testing apparatus for electronic devices, and more particularly, to a testing apparatus for space-air communication.
Background
The test and measurement of electronic products need a data test device with a corresponding interface to realize the data analog synthesis, modulation and demodulation, algorithm processing, frequency conversion, telemetering collection, instruction control, bus data communication, data reception, storage and error ratio peer-to-peer work, thereby judging the correctness or satisfaction of the functions and performance of the electronic products. The required data receiving device requires that not only digital baseband signals of interfaces such as RS-422, LVDS and the like can be received and transmitted, but also radio frequency and intermediate frequency spread spectrum modulation signals can be received and transmitted, and signal parameters and data are equally and flexibly set according to different single machines and use conditions.
At present, equipment for independently providing the functions is not available in the market, and the equipment is generally integrated in large-scale and multifunctional test equipment. Such as ARM corporation Cortex test equipment, which can customize the test function according to the requirement of the user, however, because the integration level of the equipment is high, the price of the equipment is extremely expensive, and huge development cost is brought to the whole project. Meanwhile, such large-scale and multifunctional test equipment is often bulky and inconvenient to carry, and people have requirements for miniaturization and good portability of electronic products, so that the test equipment not only needs to achieve the established functions, but also needs to be smaller in size and weight as well as better.
In summary, it is necessary to design a testing apparatus for electronic devices in combination with the mainstream technical trend, so as to meet the testing requirements of various data types and effectively reduce the volume and weight of the testing apparatus.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a space air-to-air communication testing device which can be applied to data simulation synthesis, modulation and demodulation, algorithm processing, frequency conversion, telemetering acquisition, instruction control, bus data communication, data receiving, storage and error code ratio equalization.
In order to achieve the above purpose, the technical solution for solving the technical problem is as follows:
a space air-space communication testing device at least comprises an interface data simulation module, an intermediate frequency modulation signal source module and an intermediate frequency demodulation data receiving module, wherein:
the interface data simulation module is respectively connected with the intermediate frequency modulation signal source module and the intermediate frequency demodulation data receiving module and is used for reading external data or computer issued data, sending the data to the intermediate frequency modulation signal source module for modulation according to a specified data format, and simultaneously receiving the data obtained by demodulation of the intermediate frequency demodulation data receiving module so as to extract each path of data to be sent to the outside;
the intermediate frequency modulation signal source module is respectively connected with the interface data simulation module and the up-conversion module and is used for reading data issued by a computer and outputting the data according to formats, and simultaneously carrying out intermediate frequency modulation on the data of the interface data simulation module;
the intermediate frequency demodulation data receiving module is respectively connected with the interface data simulation module and the down-conversion module and is used for demodulating the intermediate frequency signals output by the down-conversion module and uploading the demodulated data and the data input by the external interface to a computer.
Further, the external interface comprises an RS-422 interface and an LVDS interface for inputting and outputting baseband signals.
Furthermore, the up-conversion module is connected with the intermediate frequency modulation signal source module and the duplexer module respectively and used for up-converting the input intermediate frequency signal to a radio frequency signal.
Further, the down-conversion module is connected with the duplexer module and the intermediate frequency demodulation data receiving module respectively and used for down-converting the input radio frequency signals to intermediate frequency signals.
Furthermore, the device also comprises a duplexer module, wherein the duplexer module is respectively connected with the up-conversion module and the down-conversion module and is used for realizing the full-duplex communication of the radio frequency signals of the tested equipment.
The device further comprises a telemetering and remote control module, wherein the telemetering and remote control module is used for realizing the functions of analog telemetering acquisition and remote control instruction sending of external tested equipment.
Further, the device also comprises a 1553B bus communication module, wherein the 1553B bus communication module is used for realizing a 1553B bus data communication function of external tested equipment.
The remote monitoring system further comprises a controller, wherein the controller is provided with an operating system and application software and is used for controlling data interaction between the interface data simulation module, the intermediate frequency modulation signal source module, the intermediate frequency demodulation data receiving module, the up-conversion module, the down-conversion module, the remote measuring and remote control module and the 1553B bus communication module and the operating system.
The system further comprises a cPCI case, wherein the cPCI case is used for installing the interface data simulation module, the intermediate frequency modulation signal source module, the intermediate frequency demodulation data receiving module, the up-conversion module, the down-conversion module, the duplexer module, the telemetering remote control module, the 1553B bus communication module and the controller and providing power supply and cPCI bus communication for the modules.
The power supply control system further comprises a power supply case, wherein the power supply case is used for controlling power supply of external equipment to be tested.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects:
the space air-space communication testing device disclosed by the invention can adapt to the actual data testing requirements of each item of space air-space communication, has certain universality, and simultaneously, the size and the weight of the conventional data testing system are effectively reduced by the device through a modularized design idea, so that the aims of miniaturization and good portability of testing equipment are fulfilled. The method can be popularized and applied to the data comprehensive test requirements of other model projects.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a block diagram illustrating a spatial air-to-air communication testing apparatus according to an embodiment of the present invention;
fig. 2 is a functional block diagram of application software of a space air-to-air communication testing apparatus according to an embodiment of the present invention.
Detailed Description
While the embodiments of the present invention will be described and illustrated in detail with reference to the accompanying drawings, it is to be understood that the invention is not limited to the specific embodiments disclosed, but is intended to cover various modifications, equivalents, and alternatives falling within the scope of the invention as defined by the appended claims.
For the convenience of understanding the embodiments of the present invention, the following description will be further explained by taking specific embodiments as examples with reference to the drawings, and the embodiments are not to be construed as limiting the embodiments of the present invention.
The core idea of the invention is to provide a space air-to-air communication testing device, which realizes the functions of data simulation synthesis, modulation and demodulation, algorithm processing, frequency conversion, telemetering acquisition, instruction control, bus data communication, data receiving, storage, error code comparison and the like. By the combined design of application software and hardware, the project only needs to be configured correspondingly according to parameters such as the frame length, the modulation coding and decoding mode and the like of the project. Compared with other similar products, the novel LED display screen has the advantages of miniaturization and high flexibility.
As shown in fig. 1, an embodiment of the present invention discloses a space air-to-air communication testing apparatus, which at least includes an interface data simulation module, an intermediate frequency modulation signal source module, and an intermediate frequency demodulation data receiving module, wherein:
the interface data simulation module is respectively connected with the intermediate frequency modulation signal source module and the intermediate frequency demodulation data receiving module, supports data input and output of an RS-422 interface and LVDS signals, is used for reading external data or data issued by a computer, sends the data to the intermediate frequency modulation signal source module for modulation according to a specified data format, and simultaneously receives the data obtained by demodulation of the intermediate frequency demodulation data receiving module so as to extract each path of data for external transmission. The interface data simulation module cooperates with the cPCI interface driving software and the FPGA software to realize the module function together.
The intermediate frequency modulation signal source module is respectively connected with the interface data simulation module and the up-conversion module and is used for reading data issued by a computer and outputting the data according to formats, and simultaneously, the intermediate frequency modulation is carried out on the data of the interface data simulation module, so that the simulation of original data and the modulation and spread spectrum processing of an external output baseband signal are mainly realized. The intermediate frequency modulation signal source module cooperates with the cPCI interface driving software and the FPGA software to realize the module function together. The data modulation processing parameters are controlled by application software in real time.
The intermediate frequency demodulation data receiving module is respectively connected with the interface data simulation module and the down-conversion module and is used for demodulating the intermediate frequency signals output by the down-conversion module and uploading the demodulated data and the data input by the external interface to a computer. In this embodiment, the intermediate frequency demodulation data receiving module supports data input of an intermediate frequency modulation spread spectrum signal, an external RS-422 interface, and an LVDS interface signal, receives data by frame, stores the data in a data buffer, and uploads the data to a computer for storage and display under the control of application software. The intermediate frequency demodulation data receiving module cooperates with the cPCI interface driving software and the FPGA software to realize the module function together. Preferably, the intermediate frequency modulation signal source module and the intermediate frequency demodulation data receiving module perform data modulation and demodulation, spread spectrum and de-spread, data error correction, and the like by using a data communication algorithm.
Furthermore, the communication testing device further comprises an up-conversion module, wherein the up-conversion module is respectively connected with the intermediate frequency modulation signal source module and the duplexer module and is used for up-converting the input intermediate frequency signal to a radio frequency signal. In this embodiment, the up-conversion module may communicate with a computer through a serial port, may control parameters such as attenuation value, frequency deviation, and the like in real time, and may adopt a numerical control attenuation technique of radio frequency signal power automatic control and instruction control.
Furthermore, the communication testing device further comprises a down-conversion module, wherein the down-conversion module is respectively connected with the duplexer module and the intermediate frequency demodulation data receiving module and is used for down-converting the input radio frequency signal to the intermediate frequency signal. In this embodiment, the down-conversion module may communicate with a computer through a serial port, may control parameters such as an attenuation value and a frequency deviation in real time, and may use a numerical control attenuation technique of automatic control of radio frequency signal power and instruction control.
Furthermore, the communication testing device further comprises a duplexer module, wherein the duplexer module is respectively connected with the up-conversion module and the down-conversion module and is used for realizing the full-duplex communication of the radio frequency signals of the tested equipment.
Furthermore, the communication test device also comprises a telemetering and remote control module which is used for realizing the functions of analog telemetering acquisition and remote control instruction sending of external tested equipment. In this embodiment, the telemetry and remote control module supports not less than 40 analog quantity telemetry and acquisition functions, and provides 36 OC doors to output remote control instructions. The telemetering and remote control module works together with the cPCI interface driving software and the FPGA software to realize the module function together.
Further, the communication testing device further comprises a 1553B bus communication module, and the 1553B bus communication module is used for realizing a 1553B bus data communication function of external tested equipment. In the embodiment, the 1553B bus communication module adopts a 1553B module of AEC1553-CPCI-SBC31RT/S2 model number of China aviation company. The application software control module is used for simulating 1553B bus BC to work, simulating bus instructions sent by the BC, simulating bus data sent by the BC, receiving the bus data sent by the tested equipment through the bus, and displaying, recording and comparing and analyzing the data in real time.
Furthermore, the communication testing device further comprises a controller, wherein the controller is provided with an operating system and application software and is used for controlling data interaction between the interface data simulation module, the intermediate frequency modulation signal source module, the intermediate frequency demodulation data receiving module, the up-conversion module, the down-conversion module, the telemetering remote control module and the 1553B bus communication module and the operating system. In this embodiment, the controller is a 3U PXI controller PXI-3920 from rituxia (ADLINK).
Furthermore, the communication test device also comprises a cPCI case which is used for installing the interface data simulation module, the intermediate frequency modulation signal source module, the intermediate frequency demodulation data receiving module, the up-conversion module, the down-conversion module, the duplexer module, the telemetering remote control module, the 1553B bus communication module and the controller and providing power supply and cPCI bus communication for the modules. In this embodiment, the cPCI enclosure adopts an 18-slot CompactPCI enclosure PXIS-2700 of lingua (ADLINK) corporation. PXIS-2700 is a standard 4U mass storage chassis, which includes 1 system slot and 17 peripheral slots, and supports PXI and CompactPCI modules.
Furthermore, the communication test device also comprises a power supply case which is used for controlling power supply of external tested equipment. In this embodiment, the power supply chassis is a standard 1U chassis, and can perform independent power supply control on the device under test, and display the supply voltage and current value of the device under test in real time.
Fig. 2 is a functional block diagram of application software of a space air-to-air communication testing apparatus according to an embodiment of the present invention, where functions of the modules are as follows:
the software modulation module provides modulation parameters and an analog data codebook for the intermediate frequency modulation signal source module, wherein the modulation parameters comprise frequency parameters, output amplitude, frame format, modulation mode selection and other parameters;
the software receiving module provides demodulation receiving parameters for the intermediate frequency demodulation data receiving module, analyzes and compares the data received by the intermediate frequency demodulation data receiving module, and stores the data in a disk; the demodulation receiving parameters comprise parameters such as a demodulation mode, a frequency parameter, a received data block size and the like;
the software telemetering acquisition and command sending module receives telemetering data acquired by the telemetering remote control module in real time, displays and analyzes the telemetering data, and controls the telemetering remote control module to send a remote control command;
the software data simulation module provides a simulation data codebook and data simulation parameters for the interface data simulation module, wherein the data simulation parameters comprise parameters such as a data sending mode, a sending interval and data source selection;
and the software 1553B bus module controls the 1553B bus communication module to carry out BC simulation, and functions of bus data simulation sending, data receiving, comparison and storage disk and the like are realized.
And the software up-down converter control module provides configuration parameters for the up-conversion module and the down-conversion module, and the parameters comprise attenuation, frequency point deviation and the like.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a space air-space communication testing arrangement which characterized in that includes interface data analog module, intermediate frequency modulation signal source module and intermediate frequency demodulation data receiving module at least, wherein:
the interface data simulation module is respectively connected with the intermediate frequency modulation signal source module and the intermediate frequency demodulation data receiving module and is used for reading external data or computer issued data, sending the data to the intermediate frequency modulation signal source module for modulation according to a specified data format, and simultaneously receiving the data obtained by demodulation of the intermediate frequency demodulation data receiving module so as to extract each path of data to be sent to the outside;
the intermediate frequency modulation signal source module is respectively connected with the interface data simulation module and the up-conversion module and is used for reading data issued by a computer and outputting the data according to formats, and simultaneously carrying out intermediate frequency modulation on the data of the interface data simulation module;
the intermediate frequency demodulation data receiving module is respectively connected with the interface data simulation module and the down-conversion module and is used for demodulating the intermediate frequency signals output by the down-conversion module and uploading the demodulated data and the data input by the external interface to a computer.
2. The space-air communication testing device according to claim 1, wherein the external interface includes an RS-422 interface and an LVDS interface for baseband signal input and output.
3. The space air-space communication testing device according to claim 1, further comprising an up-conversion module, wherein the up-conversion module is respectively connected to the intermediate frequency modulation signal source module and the duplexer module, and is configured to up-convert an input intermediate frequency signal to a radio frequency signal.
4. The space-air communication testing device according to claim 3, further comprising a down-conversion module, wherein the down-conversion module is respectively connected to the duplexer module and the intermediate frequency demodulation data receiving module, and is configured to down-convert an input radio frequency signal to an intermediate frequency signal.
5. The space air-space communication testing device according to claim 4, further comprising a duplexer module, wherein the duplexer module is respectively connected to the up-conversion module and the down-conversion module, and is configured to implement full duplex communication of the radio frequency signal with the device under test.
6. The space air-space communication testing device according to claim 5, further comprising a telemetering and remote control module, wherein the telemetering and remote control module is used for realizing the functions of analog telemetering acquisition and remote control instruction sending of external tested equipment.
7. The space air-space communication testing device according to claim 6, further comprising a 1553B bus communication module, wherein the 1553B bus communication module is used for realizing 1553B bus data communication function for external tested equipment.
8. The space air-space communication testing device according to claim 7, further comprising a controller, wherein the controller is provided with an operating system and application software, and is used for controlling data interaction between the interface data simulation module, the intermediate frequency modulation signal source module, the intermediate frequency demodulation data receiving module, the up-conversion module, the down-conversion module, the telemetry and remote control module and the 1553B bus communication module and the operating system.
9. The space air-space communication testing device according to claim 8, further comprising a cPCI box for mounting the interface data simulation module, the intermediate frequency modulation signal source module, the intermediate frequency demodulation data receiving module, the up-conversion module, the down-conversion module, the duplexer module, the telemetry and remote control module, the 1553B bus communication module and the controller and providing power supply and cPCI bus communication for the modules.
10. The space air-space communication testing device according to claim 1, further comprising a power supply cabinet, wherein the power supply cabinet is used for controlling power supply of external tested equipment.
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| CN202011142365.XA CN112333041A (en) | 2020-10-23 | 2020-10-23 | Space air-to-air communication testing device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020021687A1 (en) * | 2000-06-14 | 2002-02-21 | Kazuya Toki | Time-division multiplexing radio system |
| CN108322273A (en) * | 2018-01-10 | 2018-07-24 | 北京哨兵科技有限公司 | Flight data-link ground checkout equipment |
| CN111212335A (en) * | 2019-12-16 | 2020-05-29 | 上海卫星工程研究所 | Deep space detector radio frequency test system self-checking device and test method thereof |
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2020
- 2020-10-23 CN CN202011142365.XA patent/CN112333041A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020021687A1 (en) * | 2000-06-14 | 2002-02-21 | Kazuya Toki | Time-division multiplexing radio system |
| CN108322273A (en) * | 2018-01-10 | 2018-07-24 | 北京哨兵科技有限公司 | Flight data-link ground checkout equipment |
| CN111212335A (en) * | 2019-12-16 | 2020-05-29 | 上海卫星工程研究所 | Deep space detector radio frequency test system self-checking device and test method thereof |
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