CN206698228U - Very high frequency(VHF) transceiver hardware of automatic test system - Google Patents
Very high frequency(VHF) transceiver hardware of automatic test system Download PDFInfo
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Abstract
本实用新型涉及甚高频收发机自动化测试硬件系统，包括：PXI嵌入式控制器，实现测试硬件系统的总体控制；ARINC‑429板卡，实时分析发送或接收的ARINC‑429数据；数据采集卡，配套包含快速傅里叶变换算法的模拟低频信号分析仪；数字和矢量信号发生器，用于产生不同特征的调制信号至甚高频收发机；无线通信综合测试仪，既提供输入信号至甚高频收发机也分析甚高频收发机的输出信号；开关资源，用于甚高频收发机输入/输出信号选择和配置离散管脚状态.本实用新型能够实现甚高频收发机的全自动化故障测试，定位故障位置，结构简单，降低测试台硬件成本，节省测试人力，减少测试错误率，大大提高测试效率。
The utility model relates to a VHF transceiver automatic testing hardware system, comprising: a PXI embedded controller, which realizes the overall control of the testing hardware system; an ARINC-429 board, which analyzes the ARINC-429 data sent or received in real time; and a data acquisition card , equipped with an analog low-frequency signal analyzer that includes a fast Fourier transform algorithm; a digital and vector signal generator, used to generate modulated signals with different characteristics to a VHF transceiver; a wireless communication comprehensive tester, which provides both input signals and even The high-frequency transceiver also analyzes the output signal of the VHF transceiver; the switch resource is used for the input/output signal selection of the VHF transceiver and the configuration of the discrete pin state. The utility model can realize the full automation of the VHF transceiver Fault testing, locating the fault location, simple structure, reducing test bench hardware cost, saving test manpower, reducing test error rate, greatly improving test efficiency.
Description
技术领域technical field
本实用新型涉及一种自动化测试硬件系统, 具体是指一种甚高频收发机的故障自动化测试硬件系统。The utility model relates to an automatic testing hardware system, in particular to a fault automatic testing hardware system for a VHF transceiver.
背景技术Background technique
甚高频收发机作为甚高频通信系统的重要组成器件，是特殊交通工具上用于通信的主要器件，如飞机或轮船。甚高频收发机工作在频段118.000MHz~136.99167MHz，发送时，收发机用频率合成器提供稳定的基准频率，信号调制到载波然后通过天线发送；接收时，接收机从天线上收到信号后，经过放大、检波、静噪处理变成音频信号。原厂的甚高频收发机故障测试系统的操作步骤繁琐以及需要人工判断测试结果，测试准确率和效率都有待提高。As an important component of the VHF communication system, the VHF transceiver is the main device used for communication on special vehicles, such as aircraft or ships. The VHF transceiver works in the frequency band 118.000MHz~136.99167MHz. When transmitting, the transceiver uses a frequency synthesizer to provide a stable reference frequency. The signal is modulated to the carrier and then sent through the antenna; when receiving, the receiver receives the signal from the antenna. , after amplification, detection, and squelch processing, it becomes an audio signal. The operation steps of the original VHF transceiver fault test system are cumbersome and require manual judgment of the test results. The test accuracy and efficiency need to be improved.
实用新型内容Utility model content
本实用新型所要解决的技术问题是提供一种高效率的甚高频收发机的故障自动化测试硬件系统。The technical problem to be solved by the utility model is to provide a high-efficiency VHF transceiver automatic fault testing hardware system.
为解决上述技术问题，本实用新型采用以下技术方案实现。In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions to realize.
甚高频收发机自动化测试硬件系统，其包括：VHF transceiver automated testing hardware system, which includes:
PXI嵌入式控制器，控制待测甚高频收发机、ARINC-429板卡、数据采集卡、开关资源、数字和矢量信号发生器、无线通信综合测试仪按照参数测试的流程完成故障测试；PXI embedded controller controls the VHF transceiver to be tested, ARINC-429 board, data acquisition card, switch resources, digital and vector signal generator, and wireless communication comprehensive tester to complete the fault test according to the parameter test process;
ARINC-429板卡，与PXI嵌入式控制器相连，受PXI嵌入式控制器控制，与甚高频收发机形成ARINC-429数据通信链路，与之进行通信；ARINC-429板卡配套有ARINC-429控制面板，用于实时分析发送或接收的ARINC-429数据；ARINC-429 board, connected with PXI embedded controller, controlled by PXI embedded controller, forms ARINC-429 data communication link with VHF transceiver, and communicates with it; ARINC-429 board is equipped with ARINC - 429 control panel for real-time analysis of sent or received ARINC-429 data;
数据采集卡，与PXI嵌入式控制器相连，受PXI嵌入式控制器控制，采集并分析来自甚高频收发机输出的低频信号；The data acquisition card is connected with the PXI embedded controller and controlled by the PXI embedded controller to collect and analyze the low frequency signal output from the VHF transceiver;
开关资源，与PXI嵌入式控制器相连，受PXI嵌入式控制器控制，用于甚高频收发机输入/输出信号选择和配置离散管脚状态；Switch resource, connected with PXI embedded controller, controlled by PXI embedded controller, used for VHF transceiver input/output signal selection and configuration of discrete pin status;
数字和矢量信号发生器，与PXI嵌入式控制器相连，受PXI嵌入式控制器控制，用于产生不同特征的调制信号至甚高频收发机；Digital and vector signal generators, connected with PXI embedded controllers, controlled by PXI embedded controllers, used to generate modulation signals with different characteristics to VHF transceivers;
无线通信综合测试仪，与PXI嵌入式控制器相连，受PXI嵌入式控制器控制，既能提供输入信号至甚高频收发机又能分析甚高频收发机的输出信号。The wireless communication comprehensive tester is connected with the PXI embedded controller and controlled by the PXI embedded controller. It can not only provide the input signal to the VHF transceiver but also analyze the output signal of the VHF transceiver.
进一步地，所述的ARINC-429板卡设有PXI接口，通过PXI机箱与PXI嵌入式控制器相连。Further, the ARINC-429 board is provided with a PXI interface, and is connected with a PXI embedded controller through a PXI chassis.
进一步地，所述的数据采集卡设有PXI接口，通过PXI机箱与PXI嵌入式控制器相连。Further, the data acquisition card is provided with a PXI interface, and is connected with a PXI embedded controller through a PXI chassis.
进一步地，所述的数字和矢量信号发生器设有GPIB接口，通过PXI机箱上面的PXI-GPIB板卡连接至PXI嵌入式控制器。Further, the described digital and vector signal generator is provided with a GPIB interface, and is connected to the PXI embedded controller through the PXI-GPIB board on the PXI chassis.
进一步地，所述的无线通信综合测试仪设有GPIB接口，通过PXI机箱上面的PXI-GPIB板卡连接至PXI嵌入式控制器。Further, the wireless communication comprehensive tester is provided with a GPIB interface, and is connected to the PXI embedded controller through the PXI-GPIB board on the PXI chassis.
进一步地，所述的开关资源包含一个矩阵开关板卡以、单刀单掷开关板卡和单刀双掷开关板卡，均设有PXI接口，通过PXI机箱与PXI嵌入式控制器相连，通过具有ARINC-608A标准的接收器和适配器将待测甚高频收发机、数字和矢量信号发生器和无线通信综合测试仪连接。Further, the switch resource includes a matrix switch board, a single-pole single-throw switch board and a single-pole double-throw switch board, all of which are provided with a PXI interface, connected to a PXI embedded controller through a PXI chassis, and equipped with an ARINC The -608A standard receiver and adapter connect the VHF transceiver to be tested, the digital and vector signal generator and the wireless communication comprehensive tester.
进一步地，PXI嵌入式控制器还通过USB口与可编程直流电源相连。Furthermore, the PXI embedded controller is also connected to the programmable DC power supply through the USB port.
所述甚高频收发机自动化测试硬件系统中，PXI嵌入式控制器控制可编程直流电源为甚高频收发机供电，控制无线电通信综合测试仪为测试提供输入信号或分析输出信号，控制数字和矢量信号发生器输出调制信号至甚高频收发机作为其输入信号，控制开关资源决定甚高频收发机的离散控制管脚状态以及选择接入输入信号，通过数据采集卡采集甚高频收发机输出的低频信号并进行分析，通过ARINC-429板卡与甚高频收发机进行交互通信。In the VHF transceiver automatic testing hardware system, the PXI embedded controller controls the programmable DC power supply to supply power for the VHF transceiver, controls the radio communication comprehensive tester to provide input signals or analyze output signals for testing, and controls the digital and The vector signal generator outputs the modulated signal to the VHF transceiver as its input signal, the control switch resource determines the state of the discrete control pin of the VHF transceiver and selects the input signal, and collects the VHF transceiver through the data acquisition card The output low-frequency signal is analyzed and communicated interactively with the VHF transceiver through the ARINC-429 board.
与现有技术相比，本实用新型的有点以及有益效果在于：Compared with the prior art, the advantages and beneficial effects of the present invention are:
1)本实用新型结构简单，容易搭建和实现。极大地方便了测试人员调试待测甚高频收发机。1) The utility model has a simple structure and is easy to build and realize. It greatly facilitates testers to debug the VHF transceiver to be tested.
2)本实用新型能够按照标准的测试流程对甚高频收发机进行故障全自动测试并生成测试报告，帮助测试人员定位故障位置，降低了人为因素造成的测试错误，大大地提高了测试效率。2) The utility model can automatically test the failure of the VHF transceiver according to the standard test process and generate a test report to help testers locate the fault location, reduce test errors caused by human factors, and greatly improve test efficiency.
3)本实用新型利用信号采集卡模拟低频信号分析仪代替了示波器和频谱分析仪，降低了测试台硬件的成本。3) The utility model uses a signal acquisition card to simulate a low-frequency signal analyzer instead of an oscilloscope and a spectrum analyzer, thereby reducing the cost of the test bench hardware.
附图说明Description of drawings
图1是实例中硬件系统的原理组成框架示意图；Fig. 1 is a schematic diagram of the principle composition framework of the hardware system in the example;
图2是实例中的一种工作流程示意图。Fig. 2 is a schematic diagram of a workflow in the example.
具体实施方式detailed description
为了便于本领域技术人员理解，下面将结合附图以及实施例对本实用新型进行进一步详细描述，需指出的是，本实用新型的是对硬件结构部分提出的技术方案，以下实例中若涉及软件或控制程序部分，均是产品自带或本领域技术人员可参照现有技术实现的。In order to facilitate the understanding of those skilled in the art, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be pointed out that the utility model is a technical solution proposed for the hardware structure part. The control program part is all provided with the product or can be implemented by those skilled in the art with reference to the prior art.
如图1所示，本实用新型所表示的甚高频收发机自动化测试硬件系统包括PXI嵌入式控制器、PXI机箱、ARINC-429板卡、数据采集卡、开关资源、数字和矢量信号发生器、无线通信综合测试仪、可编程直流电源。As shown in Figure 1, the VHF transceiver automatic test hardware system represented by the utility model includes PXI embedded controller, PXI chassis, ARINC-429 board card, data acquisition card, switch resource, digital and vector signal generator , Wireless communication comprehensive tester, programmable DC power supply.
其中PXI嵌入式控制器具有PXI总线和USB接口，其系统上安装有自动化测试硬件系统，并且有相应的甚高频收发机测试脚本。通过PXI机箱上的PXI总线与ARINC-429板卡、数据采集卡、开关资源板卡、PXI-GPIB板卡等PXI设备相连，其中的PXI-GPIB板卡再与无线通信综合测试仪与数字与矢量信号发生器相连，USB接口连接可编程直流电源。Among them, the PXI embedded controller has PXI bus and USB interface, and the automatic test hardware system is installed on the system, and there is a corresponding VHF transceiver test script. Through the PXI bus on the PXI chassis, it is connected with PXI devices such as ARINC-429 boards, data acquisition cards, switch resource boards, and PXI-GPIB boards. The vector signal generator is connected, and the USB interface is connected to the programmable DC power supply.
所述的无线电通信综合测试仪设有GPIB接口，通过PXI-GPIB板卡与PXI嵌入式控制器相连，信号输入端经过开关资源接入甚高频收发机信号输出端，信号输出端经过开关资源接入甚高频收发机信号输入端。Described radio communication comprehensive tester is provided with GPIB interface, is connected with PXI embedded controller through PXI-GPIB board card, and signal input terminal is connected to VHF transceiver signal output terminal through switch resource, and signal output terminal is connected through switch resource Connect to the VHF transceiver signal input terminal.
所述的数字和矢量信号发生器设有GPIB接口，通过GPIB板卡与PXI嵌入式控制器相连，信号输出端经过开关资源接入甚高频收发机的信号输入端，为测试提供输入调制射频信号。Described digital and vector signal generator is provided with GPIB interface, is connected with PXI embedded controller by GPIB board card, and signal output end is connected to the signal input end of VHF transceiver through switch resource, provides input modulation radio frequency for testing Signal.
所述的开关资源包括矩阵开关板卡、单刀单掷（SPST,single-pole single-throw）开关板卡以及单刀双掷（SPDT,single-pole double-throw）开关板卡，设有PXI接口，通过PXI插槽与PXI机箱直接相连。The switch resources include matrix switch boards, single-pole single-throw (SPST, single-pole single-throw) switch boards, and single-pole double-throw (SPDT, single-pole double-throw) switch boards, with PXI interfaces, Connect directly to the PXI chassis through the PXI slot.
所述的数据采集卡设有PXI接口，通过PXI插槽直接与PXI机箱相连，输入端通过开关资源与甚高频收发机的输出端相连。The data acquisition card is provided with a PXI interface, directly connected to the PXI chassis through the PXI slot, and the input end is connected to the output end of the VHF transceiver through the switch resource.
所述的ARINC-429板卡设有PXI接口，通过PXI插槽与PXI机箱相连，输入输出均接进开关资源。The ARINC-429 board is provided with a PXI interface, and is connected to a PXI chassis through a PXI slot, and both input and output are connected to switch resources.
所述待测的甚高频收发机接入开关资源，通过开关资源接入无线电通信综合测试仪、数字和矢量信号发生器、数据采集卡和电源等测试设备。The VHF transceiver to be tested is connected to a switch resource, through which it is connected to test equipment such as a radio communication comprehensive tester, a digital and vector signal generator, a data acquisition card, and a power supply.
可编程直流电源通过USB接口与PXI嵌入式控制器相连，PXI嵌入式控制器控制其输出+27.5V或+18V直流电压，经过开关资源接到待测甚高频收发机，供测试时使用。The programmable DC power supply is connected to the PXI embedded controller through the USB interface, and the PXI embedded controller controls its output +27.5V or +18V DC voltage, which is connected to the VHF transceiver to be tested through the switch resource for use during testing.
无线通信综合测试仪具有可编程特性，通过GPIB接口与PXI机箱上的PXI-GPIB板卡连接，最后与PXI嵌入式控制器连接，PXI嵌入式控制器控制其产生不同特征调幅波输入至甚高频收发机输入端，并分析甚高频收发机输出信号的灵敏度等测试指标。The wireless communication comprehensive tester has a programmable feature. It is connected to the PXI-GPIB board on the PXI chassis through the GPIB interface, and finally connected to the PXI embedded controller. The input terminal of the VHF transceiver, and analyze the test indicators such as the sensitivity of the output signal of the VHF transceiver.
数字与矢量信号发生器通过GPIB接口与PXI机箱上的PXI-GPIB板卡连接，最后与PXI嵌入式控制器连接，PXI嵌入式控制器控制其产生不同特征的D8PSK调制信号至高频收发机信号输入端，完成VDL MODE2模式功能测试。The digital and vector signal generator is connected to the PXI-GPIB board on the PXI chassis through the GPIB interface, and finally connected to the PXI embedded controller. The PXI embedded controller controls it to generate D8PSK modulation signals with different characteristics to high-frequency transceiver signals Input terminal, complete the function test of VDL MODE2 mode.
数据采集卡设有PXI接口，通过PXI插槽直接与PXI机箱相连，通过PXI总线与PXI嵌入式控制器相连。仅作为实例，PXI嵌入式控制器可调用不同的分析算法函数，可以对甚高频收发机的低频输出信号进行时域或频域分析，若涉及频域分析，则主要通过快速傅里叶变换算法，将时域波形转换至频域。用于模拟数字示波器和频谱分析仪的功能。The data acquisition card has a PXI interface, which is directly connected to the PXI chassis through the PXI slot, and connected to the PXI embedded controller through the PXI bus. Just as an example, the PXI embedded controller can call different analysis algorithm functions, and can perform time domain or frequency domain analysis on the low frequency output signal of the VHF transceiver. If frequency domain analysis is involved, it is mainly through fast Fourier transform Algorithms to convert time domain waveforms to frequency domain. Functions for simulating digital oscilloscopes and spectrum analyzers.
ARINC-429板卡（现有技术中ARINC429总线结构简单、性能稳定，抗干扰性强。最大的优势在于可靠性高，这是由于非集中控制、传输可靠、错误隔离性好。）具有8发8收通道，通过PXI插槽直接与PXI机箱相连，通过PXI总线与PXI嵌入式控制器相连，PXI嵌入式控制器可以控制ARINC-429板卡发送指定的ARINC-429格式数据指令至待测甚高频收发机或者接收并解码来自待测收发机输出的ARINC-429格式数据，从而完成数字链路的通信。另外，PXI嵌入式控制器上带有ARINC-429数据控制面板，显示8发8收共16个通道的实时ARINC-429数据，接收通道根据标准解释成易读懂的实际含义，不仅仅是显示一串数据，同理，发送通道也可以发送特定含义的ARINC-429数据，极大地方便了测试人员调试待测高频收发机。ARINC-429 board (in the prior art, the ARINC429 bus has simple structure, stable performance, and strong anti-interference. The biggest advantage is high reliability, which is due to non-centralized control, reliable transmission, and good error isolation.) with 8 8 receiving channels, directly connected to the PXI chassis through the PXI slot, and connected to the PXI embedded controller through the PXI bus. The high-frequency transceiver may receive and decode the ARINC-429 format data output from the transceiver under test, thereby completing the communication of the digital link. In addition, the PXI embedded controller is equipped with an ARINC-429 data control panel, which displays real-time ARINC-429 data of 16 channels of 8 transmissions and 8 receptions. A string of data, similarly, the sending channel can also send ARINC-429 data with specific meaning, which greatly facilitates the testers to debug the high-frequency transceiver to be tested.
开关资源包括一组矩阵开关板卡、多组单刀单掷开关板卡以及单刀双掷开关板卡，设有PXI接口，通过PXI插槽直接与PXI机箱相连，通过PXI总线与PXI嵌入式控制器相连，用于连接待测甚高频收发机与测试仪器设备，起到甚高频收发机输入/输出信号选择和配置离散管脚状态的作用，从而通过输入特定ARINC-429指令与特定的离散管脚配置让甚高频收发机工作在特定的模式，完成不同模式下的接收机、发射机参数指标测试。Switch resources include a group of matrix switch boards, multiple sets of single-pole single-throw switch boards and single-pole double-throw switch boards, with PXI interface, directly connected to the PXI chassis through the PXI slot, and connected to the PXI embedded controller through the PXI bus Connected, used to connect the VHF transceiver to be tested with the test equipment, and play the role of selecting the input/output signal of the VHF transceiver and configuring the state of the discrete pins, so that by inputting specific ARINC-429 instructions and specific discrete The pin configuration allows the VHF transceiver to work in a specific mode, and completes the parameter index test of the receiver and transmitter in different modes.
上述所有测试设备，包括ARINC-429板卡、数据采集卡、开关资源、数字和矢量信号发生器、无线通信综合测试仪、可编程直流电源，以及待测甚高频收发机均连接至按照ARINC-608A航空标准设计的接收器上，然后通过设计适配器将测试设备与甚高频收发机按照测试过程中的需要连接在一起。如可编程直流电源的输出端通过适配器连接到单刀单掷开关板卡的其中一个通道然后再连接至甚高频收发机的电源输入管脚，从而可以通过控制单刀单掷开关的闭合或断开选择是否对甚高频收发机进行供电。All the test equipment mentioned above, including ARINC-429 boards, data acquisition cards, switch resources, digital and vector signal generators, wireless communication comprehensive testers, programmable DC power supplies, and VHF transceivers to be tested are connected to the ARINC -608A aviation standard design receiver, and then through the design adapter to connect the test equipment and the VHF transceiver according to the needs of the test process. For example, the output terminal of the programmable DC power supply is connected to one of the channels of the single-pole single-throw switch board through an adapter, and then connected to the power input pin of the VHF transceiver, so that the closing or opening of the single-pole single-throw switch can be controlled. Select whether to supply power to the VHF transceiver.
具体实施时，PXI嵌入式控制器可采用任意自动化测试平台。作为一种实例，可实现以下功能：In concrete implementation, PXI embedded controller can adopt any automation test platform. As an example, the following functions can be realized:
1)根据甚高频收发机标准的测试流程，加载自动测试脚本控制待测甚高频收发机和测试设备（包括无线通信综合测试仪、数字与矢量信号发生器、数据采集卡、ARINC-429板卡、开关资源、可编程直流电源）使得甚高频收发机切换至不同的工作模式，输入多种特定信号并分析收发机的输出信号，从而完成故障自动化测试。1) According to the VHF transceiver standard test process, load the automatic test script to control the VHF transceiver and test equipment to be tested (including wireless communication comprehensive tester, digital and vector signal generator, data acquisition card, ARINC-429 board, switching resources, programmable DC power supply) make the VHF transceiver switch to different working modes, input a variety of specific signals and analyze the output signal of the transceiver, so as to complete the fault automation test.
2)根据自动化故障测试的结果，生成相应的测试报告。2) Generate a corresponding test report according to the results of the automated fault test.
其中PXI接口系列板卡如ARINC-429板卡、开关板卡、信号采集卡均通过动态链接库的封装技术提供统一的调用接口供平台调用，其余的无线通信综合测试仪、数字与矢量信号发生器、可编程直流电源则是通过标准的SCPI命令进行编程控制。Among them, the PXI interface series boards such as ARINC-429 boards, switch boards, and signal acquisition cards provide a unified calling interface for platform calling through the dynamic link library packaging technology, and the rest of the wireless communication comprehensive tester, digital and vector signal generation The controller and programmable DC power supply are programmed and controlled through standard SCPI commands.
作为一种应用实例，如图2所示，测试开始时自动化测试平台进行初始化，加载所有测试设备的驱动，按自带编写好的测试脚本对测试设备进行自测。然后导入所有的测试步骤列表，列表已经按顺序包含了甚高频收发机完整的标准测试流程，每项测试步骤均包含不同的测试脚本。测试人员可以根据需要选择按顺序全自动运行列表上所有测试步骤，或者选择性运行某些测试步骤项。测试脚本严格按照标准测试流程中的步骤控制测试设备对待测甚高频收发机进行故障测试，并会将测试结果与预期的标准值进行比对，输出到测试报告上，用于测试人员定位甚高频收发机故障位置。As an application example, as shown in Figure 2, the automated test platform is initialized at the beginning of the test, the drivers of all test equipment are loaded, and the test equipment is self-tested according to the test script written by itself. Then import all the test step lists, which have included the complete standard test process of the VHF transceiver in order, and each test step contains a different test script. Testers can choose to run all the test steps on the list automatically in order, or selectively run some test step items according to their needs. The test script strictly follows the steps in the standard test process to control the test equipment to perform fault tests on the VHF transceiver to be tested, and compares the test results with the expected standard values and outputs them to the test report, which is used for testers to locate and even HF transceiver fault location.
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| CN109279048A (en) * | 2018-11-20 | 2019-01-29 | 中航通飞华南飞机工业有限公司 | A kind of engine and APU revolving speed and avionics system are crosslinked closed loop detection method |
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| CN113985750A (en) * | 2021-09-30 | 2022-01-28 | 中国兵器工业集团第二一四研究所苏州研发中心 | Interface circuit board level integrated circuit board |
| CN114371993A (en) * | 2021-12-10 | 2022-04-19 | 北京镁伽科技有限公司 | Software debugging method and device based on SCPI instruction, electronic equipment and storage medium |
| CN114563762A (en) * | 2022-03-03 | 2022-05-31 | 中国民航大学 | An automatic test device for airborne VHF navigation system receiver |
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