Aircraft shortwave cooperative controller and antenna diplexer combined test device and method

Abstract

The invention provides an aircraft shortwave cooperative controller and an antenna diplexer combined test device and method, and the device comprises a main controller which is used for generating a control signal and transmitting the control signal; the multi-path analog output board is connected with the main controller, and the multi-path analog output board is used for receiving the control signal and providing a direct-current excitation signal with an adjustable amplitude range for a short-wave cooperative controller based on the control signal; the signal conditioning board is connected with the multi-path analog output board, and the signal conditioning board is used for receiving the direct-current excitation signal, distributing the direct-current excitation signal and acting the direct-current excitation signal on a short-wave cooperative controller; the multi-path data acquisition board is connected with the signal conditioning board, the short-wave cooperative controller and the antenna diplexer; and the multi-path data acquisition board is used for performing real-time acquisition and data analysis processing on the output data of the short-wave cooperative controller and the state feedback signal of the antenna diplexer.

Description

Technical Field

[0001] The present application belongs to the technical field of aircraft function testing and detection, and in particular, relates to an aircraft shortwave cooperative controller and an antenna duplexer joint testing device and method. Background Art

[0002] The shortwave cooperative controller is a device used to coordinate the work between the carrier's shortwave communications, compass, mission shortwave communications and other equipment in the same frequency band. Its failure rate is very high in daily use. Almost every aircraft will have control coordination problems. Due to the lack of necessary detection means, it is very easy to misjudge the failure of the airborne equipment.

[0003] At the same time, there are certain deficiencies in the cross-linking failure of the shortwave cooperative controller and the antenna duplexer on the verification machine, and it is impossible to realize joint testing with the antenna duplexer. When the cooperative controller is inspected alone, the voltage difference signal that theoretically meets the conversion requirements cannot actually realize the high and low level conversion of the antenna duplexer and provide feedback signals to the shortwave cooperative controller at the same time. Therefore, the fault point cannot be accurately located, which greatly affects the production progress. Summary of the invention

[0004] Purpose of the invention: This application aims to solve the technical problems of uncoordinated control on the shortwave cooperative controller, as well as functional verification and fault location in the joint test between the shortwave cooperative controller and the antenna duplexer.

[0005] In a first aspect, the present application provides an aircraft shortwave cooperative controller and an antenna duplexer joint test device, the joint test device comprising:

[0006] A main controller, used for generating a control signal and sending the control signal;

[0007] A multi-channel analog output board is connected to the main controller, and is used to receive the control signal and provide a DC excitation signal with an adjustable amplitude range to the shortwave cooperative controller based on the control signal;

[0008] A signal conditioning board connected to the multi-channel analog output board, the signal conditioning board is used to receive the DC excitation signal, distribute the DC excitation signal and act on the shortwave cooperative controller; wherein the shortwave cooperative controller is connected to the signal conditioning board;

[0009] A multi-channel data acquisition board is connected to the signal conditioning board, the shortwave cooperative controller, and the antenna duplexer; the multi-channel data acquisition board is used for real-time acquisition and data analysis and processing of the output data of the shortwave cooperative controller and the status feedback signal of the antenna duplexer.

[0010] Preferably, the DC excitation signal is used to simulate the working states of aircraft occupancy, dual reception, and mission occupancy.

[0011] Preferably, the combined test device further comprises:

[0012] A display screen is connected to the multi-channel data acquisition board, and is used to display and save the shortwave cooperative controller output data and antenna duplexer status feedback signal collected by the multi-channel data acquisition board in real time.

[0013] Preferably, the signal conditioning board is also used to send the state feedback signal of the antenna duplexer to the shortwave cooperative controller; wherein the antenna duplexer is connected to the shortwave cooperative controller.

[0014] In a second aspect, the present application also provides a method for joint testing of an aircraft shortwave cooperative controller and an antenna duplexer, the method comprising:

[0015] The main controller generates a control signal and sends the control signal;

[0016] The multi-channel analog output board receives the control signal and provides a DC excitation signal with an adjustable amplitude range to the shortwave cooperative controller based on the control signal; wherein the multi-channel analog output board is connected to the main controller;

[0017] The signal conditioning board receives the DC excitation signal, distributes the DC excitation signal and acts on the shortwave cooperative controller; wherein the shortwave cooperative controller is connected to the signal conditioning board, and the signal conditioning board is connected to the multi-channel analog output board;

[0018] The multi-channel data acquisition board performs real-time acquisition and data analysis processing on the output data of the shortwave cooperative controller and the status feedback signal of the antenna duplexer; wherein the multi-channel data acquisition board is connected to the signal conditioning board, the shortwave cooperative controller, and the antenna duplexer.

[0019] Preferably, the DC excitation signal is used to simulate the working states of aircraft occupancy, dual reception, and mission occupancy.

[0020] Preferably, the combined test method further comprises:

[0021] The display screen displays and stores the shortwave cooperative controller output data and antenna duplexer status feedback signal collected by the multi-channel data acquisition board in real time; wherein the display screen is connected to the multi-channel data acquisition board.

[0022] Preferably, the combined test method further comprises:

[0023] The signal conditioning board sends the state feedback signal of the antenna duplexer to the shortwave cooperative controller; wherein the antenna duplexer is connected to the shortwave cooperative controller.

[0024] Beneficial technical effects of this application:

[0025] This allows the control functionality of the shortwave cooperative controller to be verified in the laboratory before installation, reducing misjudgment of faults of this type of shortwave cooperative controller on the aircraft, improving work efficiency and saving work time.

[0026] During the joint test, the device can collect and monitor the output data and status feedback signals of the antenna duplexer and shortwave cooperative controller. By monitoring the output low level of the shortwave cooperative controller and the corresponding status signal fed back by the antenna duplexer, the specific fault location and the cause of the fault can be located, effectively simulating the working status of the antenna duplexer and shortwave cooperative controller on the aircraft and verifying its joint test functionality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of an aircraft shortwave cooperative controller and antenna duplexer joint test device provided in an embodiment of the present application;

[0028] Figure 2 It is a schematic diagram of another aircraft shortwave cooperative controller and antenna duplexer joint test device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0029] See also Figure 1 and Figure 2 The present invention provides a comprehensive test fixture. The test fixture can realize the simulation test of the carrier occupancy, task occupancy, dual reception and other working states of the shortwave cooperative controller of the object under test in the laboratory environment. At the same time, because the shortwave cooperative controller has functional continuity and expansibility, it can be equipped with a certain interface margin to realize the cross-linking inspection of the shortwave cooperative controller and the antenna duplexer in the laboratory environment, and at the same time, the hardware circuit modification and software compatibility adaptation are carried out to perform the corresponding function and performance verification. In order to realize the control output signal correctness check of the shortwave cooperative controller and the antenna duplexer of the type. The fixture is used for the function and performance detection of the shortwave cooperative controller and the antenna duplexer of the aircraft, which can meet the test requirements and has a high promotion value.

[0030] The present invention is realized through the following technical scheme: the hardware part of the equipment is mainly composed of a main controller, a multi-channel analog output board, a multi-channel data acquisition board, a signal conditioning board, a display and a test cable, that is, a shortwave collaborative controller test equipment system.

[0031] The beneficial effects of the present invention are:

[0032] 3.1 Invest in upgraded equipment to conduct functional tests on this type of antenna duplexer. The cost of purchasing new hardware resources such as test cables, plugs, and internal modification circuits is at least RMB 100,000. At the same time, the platform capacity improvement project fully utilizes the existing test equipment hardware resources, achieves the hardware functions of the newly purchased equipment, and saves the company a lot of capital investment.

[0033] 3.2 The cost of making the original test software compatible to meet various test functions is about 300,000 yuan. This innovative project achieved the test goal by understanding and analyzing the original software on the platform and making the software compatible, saving the company about 400,000 yuan in capital investment.

[0034] 3.3 The joint test of antenna duplexer and shortwave cooperative controller is realized, and fault troubleshooting and positioning are more intuitive, convenient and fast.

[0035] 3.4 The joint test device has greatly improved work efficiency and saved working time in actual use.

[0036] In other embodiments of the present application, the hardware part of an aircraft collaborative controller and antenna duplexer joint test device provided by the present application mainly includes the above contents. Among them, the main controller is the control center of the entire test system. It sends control instructions to each module of the system, controls the workflow of the system, and processes and displays the test results. The multi-channel analog output board is a 16-channel multi-channel multi-functional precision voltage output module. After receiving the control signal of the main controller, it provides a DC excitation signal with an adjustable amplitude range to the shortwave collaborative controller. After that, the serial output data, various status signals and discrete signals of the device under test are collected in real time through the RS485 input and output board and the multi-channel data acquisition board. Finally, all the data are analyzed and processed and displayed on the display screen. At the same time, the display screen can be switched through the video distributor.

[0037] Among them, the equipment software part is mainly implemented by the login module, working state setting module, data acquisition module, data processing module, serial communication module, measurement and calibration module, etc. The login interface has a multi-user management mechanism. After logging in, you can enter the main interface of the test program, which can realize human-computer interaction, set the working state, control the system to enter the test work, display the test results and other corresponding operations. At the same time, the working state setting module provides the state settings of dual-receiving working state, carrier occupied working state and task occupied working state. At the same time, the discrete and state signals under different working states output by the shortwave cooperative controller are collected in real time by the data acquisition module and sent to the data processing module for statistical averaging, smoothing filtering and other processing. The test results are saved in the database, compared with the real data of the equipment as needed, and graphics or tables are generated and test reports are printed.

[0038] The serial communication module mainly completes RS232 communication, analyzes through the ICD protocol, and displays and stores the parameters corresponding to the product bus, digital I / O, and discrete signal corresponding to the physical quantity. Corresponding to the different working states of the device under test, the serial data bus data is read and analyzed. The test results are saved in the database, compared with the real data of the device as needed, and graphics or tables are generated and test reports are printed. At the same time, the equipment has a measurement calibration module and a self-test module. The former controls the output or input of the corresponding signal of each instrument board through software according to the input signal characteristics of the test equipment, and cooperates with the measurement detection jack on the front panel to complete the measurement calibration and detection of the test equipment. The latter can verify the hardware and logical relationships of the equipment itself, and should be able to monitor the hardware of the equipment itself in real time, and can report in time when a fault occurs, and can locate the fault to a specific board or module. The entire software part realizes the function and performance verification of the shortwave cooperative controller by controlling the hardware module.

[0039] At the same time, in order to realize the cross-linking test of the antenna duplexer and the shortwave cooperative controller in the laboratory environment, Figure 1 The connection shown is to perform channel conversion through the low-level voltage signal provided by the cooperative controller to realize the corresponding radio station's antenna calling function. For example, when the carrier radio station calls the antenna, the compatible test software outputs the instruction to the shortwave cooperative controller. At this time, the shortwave cooperative controller generates a low-level signal to act on the 2-port high-frequency relay of the antenna duplexer. At this time, the antenna duplexer receives the signal, and the relay decides whether to take action based on whether the voltage difference reaches the threshold at this time. When it is satisfied, the action occurs, port 2 is directly connected to port 1, and the carrier radio station completes the antenna calling. At the same time, the feedback signal is fed back to the shortwave cooperative controller to form a loop. When it is not satisfied, that is, the antenna duplexer fails and cannot complete the conversion, it will provide a low-level signal to the shortwave cooperative controller. The shortwave cooperative controller software controls the monitoring indicator light through the external circuit to not light up, indicating that the antenna duplexer is not working properly. On the contrary, the monitoring indicator light is always on, indicating that it is in the carrier state. Therefore, the cross-linking check of the antenna duplexer and the cooperative controller and the automatic judgment of the test results during the cross-linking test are realized.

[0040] In other embodiments of this application, please refer to Figure 2 The test method provided in this application specifically includes the following steps:

[0041] Step 1. The host controller sends control signals to the multi-channel analog output board through the PXI backplane bus.

[0042] Step 2. The multi-channel analog output board receives the control signal from the main controller to generate a DC voltage signal with controllable voltage amplitude.

[0043] Step 3. The signal conditioning board distributes the voltage signal output by the multi-channel analog output board and applies it to the shortwave cooperative controller to simulate various working states such as carrier occupation, dual reception, and task occupation. At the same time, the state feedback signal of the antenna duplexer can be sent to the shortwave cooperative controller.

[0044] Step 4. The multi-channel data acquisition board performs real-time acquisition and data analysis on the output data of the shortwave cooperative controller and the status feedback signal of the antenna duplexer.

[0045] Step 5. The display screen is used to display and save the shortwave cooperative controller output data and antenna duplexer status feedback signal collected by the acquisition board in real time.

[0046] As for the collaborative controller and the antenna duplexer, joint testing of the two is necessary. In principle, a low-level signal is input into the input end of the collaborative controller to control the collaborative controller to be in the corresponding working state. At the same time, the collaborative controller outputs a corresponding low-level signal to make the corresponding path of the antenna duplexer conductive to ensure the correct occupancy of the antenna.

[0047] The present application provides a joint test fixture for a certain type of antenna duplexer and a shortwave cooperative controller, which solves the pre-installation performance test of a certain type of shortwave cooperative controller, completes the function and performance test of a certain type of shortwave cooperative controller, and uses the test data as the basis for pre-installation fault analysis and judgment. The shortwave cooperative controller test equipment has a certain degree of scalability. Through technical upgrades and modifications to the hardware interface definition, the antenna duplexer and the cooperative controller cross-linking test is realized at the same time, and the function and performance test of the antenna duplexer can be realized. At the same time, the cause of the fault on the finished machine can be analyzed more accurately and the fault can be eliminated efficiently. The operation method is simple, the steps are simplified, and the closed-loop testability of a certain type of antenna duplexer and a shortwave cooperative controller is realized.

Claims

1. An aircraft shortwave cooperative controller and antenna duplexer joint test device, characterized in that: The combined test device comprises: A main controller, used for generating a control signal and sending the control signal; A multi-channel analog output board is connected to the main controller, and is used to receive the control signal and provide a DC excitation signal with an adjustable amplitude range to the shortwave cooperative controller based on the control signal; A signal conditioning board connected to the multi-channel analog output board, the signal conditioning board is used to receive the DC excitation signal, distribute the DC excitation signal and act on the shortwave cooperative controller; wherein the shortwave cooperative controller is connected to the signal conditioning board; A multi-channel data acquisition board is connected to the signal conditioning board, the shortwave cooperative controller, and the antenna duplexer; the multi-channel data acquisition board is used for real-time acquisition and data analysis and processing of the output data of the shortwave cooperative controller and the status feedback signal of the antenna duplexer.

2. The combined test device according to claim 1, characterized in that: The DC excitation signal is used to simulate the working states of aircraft occupancy, dual reception, and mission occupancy.

3. The combined test device according to claim 2, characterized in that: The combined test device also includes: A display screen is connected to the multi-channel data acquisition board, and is used to display and save the shortwave cooperative controller output data and antenna duplexer status feedback signal collected by the multi-channel data acquisition board in real time.

4. The combined test device according to claim 3, characterized in that: The signal conditioning board is also used to send the state feedback signal of the antenna duplexer to the shortwave cooperative controller; wherein the antenna duplexer is connected to the shortwave cooperative controller.

5. A joint test method for aircraft shortwave cooperative controller and antenna duplexer, characterized in that: The combined test method comprises: The main controller generates a control signal and sends the control signal; The multi-channel analog output board receives the control signal and provides a DC excitation signal with an adjustable amplitude range to the shortwave cooperative controller based on the control signal; wherein the multi-channel analog output board is connected to the main controller; The signal conditioning board receives the DC excitation signal, distributes the DC excitation signal and acts on the shortwave cooperative controller; wherein the shortwave cooperative controller is connected to the signal conditioning board, and the signal conditioning board is connected to the multi-channel analog output board; The multi-channel data acquisition board performs real-time acquisition and data analysis on the output data of the shortwave cooperative controller and the status feedback signal of the antenna duplexer; wherein the multi-channel data acquisition board is connected to the signal conditioning board, the shortwave cooperative controller and the antenna duplexer.

6. The combined test method according to claim 5, characterized in that: The DC excitation signal is used to simulate the working states of aircraft occupancy, dual reception, and mission occupancy.

7. The combined test method according to claim 6, characterized in that: The combined test method also includes: The display screen displays and stores the shortwave cooperative controller output data and antenna duplexer status feedback signal collected by the multi-channel data acquisition board in real time; wherein the display screen is connected to the multi-channel data acquisition board.

8. The combined test method according to claim 7, characterized in that: The combined test method also includes: The signal conditioning board sends the state feedback signal of the antenna duplexer to the shortwave cooperative controller; wherein the antenna duplexer is connected to the shortwave cooperative controller.

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