Automatic communication navigation test simulation system architecture

Abstract

The invention provides an automatic communication navigation test simulation system architecture, in the batch production test process of aircraft communication navigation equipment, an automatic and integrated test system is provided, test resources are efficiently utilized, reuse of test cases is achieved, manpower resources are liberated, multiple equipment functions are integrated, a unified hardware interface is constructed, and the test efficiency is improved. Unified integrated control of equipment is achieved, the automation degree and the expandability of equipment testing are greatly improved, functional performance testing and data management of different aircraft equipment are achieved, and the testing efficiency and the equipment installation quality are improved in an all-around and multi-angle mode. The invention provides an automatic communication navigation test simulation system and a test method, which can provide a communication navigation equipment test interface and a control logic test function, have a function performance automatic test capability and realize automatic integrated test of different aircraft communication navigation equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of communication and navigation equipment testing, and in particular relates to an automated communication and navigation testing simulation system architecture. Background Art

[0002] The aircraft communication and navigation equipment test system can generate the excitation signals required for single equipment testing or integrated joint testing, including control instructions and RF excitation signals, and complete the functional performance testing of the communication and navigation equipment through wired or wireless transmission to meet the needs of functional integration of communication and navigation equipment; ultimately, it can realize automated functional simulation testing of communication and navigation equipment.

[0003] At present, there are many types of communication and navigation equipment on aircraft, with complex functions and high precision requirements. For example, TACAN equipment, radio compass, altimeter, ultra-short wave radio, etc. Before installation or when powered on on the ground, the relevant functions need to be realized in cooperation with the test system. The existing test systems are generally independent single-device test modes, which do not have the ability to test multiple aircraft equipment at the same time and cannot meet the test requirements of system function integration. There are problems such as complex manual operation, poor versatility, and large test data errors, which often lead to the inability to guarantee equipment accuracy and long test cycles, affecting aircraft production and delivery.

[0004] In the prior art, there are the following problems in the market and in the power supply of aircraft systems:

[0005] 1) Complex manual operation: The traditional system function test method is manual operation, which requires manpower to perform a large number of repetitive test tasks, or to enter harsh environments that are difficult for staff to reach to perform test tasks. The same repetitive operations occur for different test items, and the test system cannot achieve sharing and mutual assistance;

[0006] 2) Poor versatility: Traditionally, discrete devices are used, and multiple device functions cannot be integrated together, which often results in difficult testing and tight resources. There is no unified hardware interface and stimulus control, and the test process and communication interface cannot be integrated;

[0007] 3) Large test data errors: Traditional static testing lacks process control, task coordination, data mining, and full-process quality traceability capabilities, making it difficult to ensure high-reliability testing requirements for the entire process and all elements of the equipment. Summary of the invention

[0008] The present invention provides an automated communication navigation test simulation system architecture, which can be used for laboratory experiments and on-site power-on to achieve automated integrated testing of the functional performance of multiple devices, fully ensuring normal device functions and performance accuracy requirements.

[0009] The present invention provides an automated communication navigation test simulation system architecture, comprising: a radio frequency signal adaptation unit, an excitation unit, a central control unit, a bus data terminal unit, and a cross-linking interface unit;

[0010] The central control unit is connected to the bus data terminal unit, the cross-linking interface unit, the radio frequency signal adaptation unit, and the excitation unit; the radio frequency signal adaptation unit is connected to the excitation unit; the bus data terminal unit is connected to the cross-linking interface unit;

[0011] Each communication and navigation device to be tested is connected to the cross-linking interface unit and the radio frequency signal adaptation unit;

[0012] The central control unit is used to send a request for generating radio frequency signals required by the first communication and navigation device to be tested and the second communication and navigation device to the excitation unit according to the test case requirements, send the communication and navigation devices corresponding to each radio frequency signal generated by the excitation unit to the radio frequency signal adaptation unit, and send a bus data request message to the bus data terminal unit; the test case requirements include a function to be tested of the first communication and navigation device to be tested, a second communication and navigation device associated with the function to be tested of the first communication and navigation device, and bus data interconnected between the first communication and navigation device and the second communication and navigation device and the bus data terminal unit;

[0013] The excitation unit is used to generate a radio frequency signal according to the radio frequency signal generation request and send it to the radio frequency signal adaptation unit;

[0014] The radio frequency signal adaptation unit is used to route the radio frequency signal to the corresponding communication navigation device according to the received radio frequency signal and the communication navigation device corresponding to the radio frequency signal;

[0015] The bus data terminal unit is used to send bus data to the cross-link interface unit according to the bus data request message;

[0016] The cross-linking interface unit is used to send the bus data to the corresponding communication navigation device through the respective corresponding bus interfaces;

[0017] The cross-linking interface unit is also used to receive the test result of the first communication and navigation device to be tested, and send it to the central control unit.

[0018] Optionally, the central control unit is also used to send a request for generating the radio frequency signal required by the first communication and navigation device to be tested to the excitation unit according to the test case requirements, send the communication and navigation device corresponding to the radio frequency signal generated by the excitation unit to the radio frequency signal adaptation unit, and send a bus data request message to the bus data terminal unit; the test case requirements include the function to be tested of the first communication and navigation device to be tested, and the bus data interconnected between the first communication and navigation device and the bus data terminal unit.

[0019] Optionally, the central control unit is also used to display the test results.

[0020] Optionally, the central control unit is also used to obtain the working status of each communication and navigation device according to the test results, and display it.

[0021] Optionally, the bus data terminal unit is used to simulate bus data related to communication and navigation, and / or receive, process and display other system bus data associated with the communication and navigation device.

[0022] Optionally, the radio frequency signal generation request includes the frequency and power of the radio frequency signal.

[0023] Optionally, it also includes: a power supply unit;

[0024] The power supply unit is used to supply power to the radio frequency signal adaptation unit, the excitation unit, the central control unit, the bus data terminal unit, the cross-linking interface unit, and various communication and navigation devices;

[0025] The central control unit is connected to the power supply unit and controls the power supply unit to turn on / off the power supply to each communication navigation device.

[0026] Optionally, the central control unit includes: an avionics simulation module, a message excitation module, a test control module, and an acquisition monitoring module;

[0027] The avionics simulation module is used to simulate the functional interface between the avionics systems and the communication and navigation equipment;

[0028] The message excitation module is used to complete the generation of the excitation unit message type and protocol, connect the communication navigation device under test through the serial port, and complete the transmission data function test;

[0029] The test control module provides the step types that need to be edited in the test sequence, including test judgment, test action, logic control and synchronization, and has the switching of test start, run, pause and stop states; serial and parallel test mode selection, and dynamic display of data graphics. By sending excitation control instructions through the serial port, remote control of the excitation unit and the RF signal adaptation unit can be realized;

[0030] The acquisition and monitoring module generates the discrete excitation signal required by the communication and navigation equipment, and acquires, displays the status and analyzes the discrete quantity signal and bus data.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The present invention constructs an automated communication and navigation test simulation system, in which the central control unit controls the hardware resources such as radio frequency signal excitation, bus terminal, and cross-linking interface unit through test simulation software and modular design to realize the function and performance test of airborne communication and navigation equipment. It has the advantages of high automation and strong versatility. At the same time, it uses the combination of software and hardware, combined with software and hardware dynamic matching technology, to meet the test requirements of different models and interface definitions when they change, which is convenient for rapid adaptation and transformation, and greatly reduces the test cost.

[0033] 2. The present invention proposes an automated testing process, which takes communication and navigation equipment as the test object, combines software functions with hardware operations, constructs test cases, and takes into account the testing needs of multiple devices, thereby reducing the previous situation of single-device testing and reducing the tension and waste of on-site equipment resources. At the same time, a method of program-controlled excitation is proposed to reduce manual operation processes and greatly improve test efficiency.

[0034] 3. The present invention reduces the risk of large errors in manual data interpretation, designs data acquisition and monitoring function module software, can process and analyze test data through unified control instructions, and finally graphically display the generated test data results, which can realize data management sharing and rapid testing, and can also quickly realize resource sharing, thereby improving the expansion capability of the test platform.

[0035] 4. The present invention designs an automated test process for equipment, and provides the step types that need to be edited through the test software, including test judgment, test action, logic control and synchronization, etc. It provides a test project tree list management function, which can realize the operations of creating, opening, deleting, saving and closing projects; it has the test start, run, pause and stop state switching. Serial and parallel test mode selection; it provides static viewing of test sequences and dynamic tracking test functions. It can realize comprehensive monitoring of the test process and automatic control and configuration of the RF excitation system.

[0036] The present invention uses software and hardware dynamic matching technology, automatically drives the control interface adaptation, and automatically generates RF excitation signals and edits use cases, combines test simulation and test generation, calls the database to complete instruction generation and issuance, automatically judges the function results by receiving the parameters returned by the device under test, and generates test results. This is to solve the problems mentioned in the above background technology when testing aircraft communication and navigation equipment, such as complex manual operation, large data processing errors, poor test versatility, and large test data errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 The hardware architecture diagram of the antenna test system platform of the present invention;

[0038] Figure 2 This is a software architecture diagram of the antenna testing system of the present invention. DETAILED DESCRIPTION

[0039] The present application is further described in detail below with reference to examples and drawings:

[0040] The present invention provides an automated communication navigation test simulation system architecture diagram, such as Figure 1 , 2 As shown, the system includes a radio frequency signal adaptation unit, an excitation unit, a central control unit, a bus data terminal unit, a cross-linking interface unit, a power supply unit, and test cable accessories.

[0041] The radio frequency signal adaptation unit provides radio frequency signal routing and adaptation connection between the communication navigation device and the excitation unit.

[0042] The excitation unit provides the function verification radio frequency excitation signal required by the communication navigation device, thereby realizing the corresponding function test of the device.

[0043] The central control unit is installed with communication and navigation test simulation software, which completes the generation of test cases for the equipment, the control of the test process, and the display of execution results, completes the setting and control of the parameters of the stimulus test equipment during the entire test process of the communication and navigation equipment function verification, and transmits data with the bus data terminal unit through the bus interface.

[0044] The bus data terminal unit simulates bus data related to communication and navigation, and receives, processes and displays other system bus data. Finally, it simulates and generates commands and parameter data through the bus interface and sends them to the communication and navigation equipment, providing the necessary bus data stimulus for equipment function verification, and displaying the working status and working parameters of the equipment.

[0045] The cross-linking interface unit provides low-frequency signal interface adaptation for the communication and navigation equipment inside and outside the system, and realizes communication with the airborne equipment through wired means, and at the same time has bus connection with the bus data terminal unit and signal interface adaptation between devices.

[0046] The power supply unit provides power input interface adaptation for the communication navigation equipment and the test environment, completes the working power adaptation and on / off management of each airborne device, and overcurrent protection.

[0047] The test cable accessories are used for system high and low frequency signal cross-linking.

[0048] The communication and navigation test simulation software has a built-in central control unit, which includes four functional modules: an avionics simulation module, a message excitation module, a test control module, and an acquisition monitoring module.

[0049] The avionics simulation module is used to simulate the functional interface between the avionics systems and the communication and navigation equipment.

[0050] The message excitation module is used to complete the generation of the excitation unit message type and protocol, connect to the device under test through the serial port, and complete the data transmission function test.

[0051] The test control module provides the step types that need to be edited in the test sequence, including test judgment, test action, logic control and synchronization, etc., and has the test start, run, pause and stop state switching. Serial and parallel test mode selection, and dynamic display of data and other graphics. By sending excitation control instructions through the serial port, remote control of the excitation unit and the RF interface adapter unit can be realized, and the cross-linking interface unit can be controlled to complete the dynamic matching of interface adaptation.

[0052] The acquisition monitoring module generates the discrete excitation signal required by the device, and acquires, displays the status and analyzes the discrete quantity signal and bus data.

[0053] The working principle and use process of the present invention: Taking the automated test of aircraft communication and navigation equipment as an example, it includes the following contents:

[0054] (1) Connect the test cable between the device under test and the system, start the test simulation system power supply, and power on the device under test and the simulation system.

[0055] (2) Run the communication navigation test simulation software. At this time, the central control unit controls the test control software module to send control instructions to the cross-linking interface unit. After receiving the instructions, the cross-linking interface unit establishes a communication connection with the device under test, and automatically completes the interface matching to realize the wired communication connection, and at the same time completes the bus connection with the bus data terminal unit.

[0056] (3) Running the communication and navigation test simulation software, the central control unit message excitation module software module sends excitation control instructions through the serial port to the excitation unit to send the RF signal generation request required by the first communication and navigation device to be tested and the second communication and navigation device to be tested, and sends the communication and navigation devices corresponding to each RF signal generated by the excitation unit to the RF signal adaptation unit, so as to complete the routing and adaptation of the RF link of the functional excitation required by the test case. At the same time, the central control unit remotely controls the working parameters of the excitation unit required by the device test case to complete the generation of the RF signal required by the test case.

[0057] (4) During automatic testing, the test control software module run by the central control unit initiates the test process, provides test cases required for the functions of the first communication and navigation device to be tested, and completes the generation of test cases required for the first communication and navigation device to be tested based on signal characteristics and types, then generates test cases required for the functions of the second communication and navigation device to be tested, and completes the generation of test cases required for the second communication and navigation device to be tested based on signal characteristics and types.

[0058] (5) After the test cases and sequences are generated, the central control unit calls the avionics simulation module software dynamic library to stimulate the bus data terminal unit to simulate the bus data related to communication and navigation. After the acquisition and monitoring module software analyzes and records the bus data, it simulates the generation of avionics instructions and data through the bus interface and sends them to the first communication and navigation device and the second communication and navigation device through the cross-linking interface unit.

[0059] (6) According to the test cases and test requirements, the acquisition monitoring module software in the central control unit generates the discrete excitation signals required by the first communication navigation device and the second communication navigation device to be tested, and transmits them to the devices to be tested through the cross-linking interface unit. At the same time, the central control unit acquires, displays the status of, and analyzes the discrete quantity signals of the first communication navigation device and the second communication navigation device to be tested, thereby completing the function and performance test of the discrete quantity signals of the devices.

[0060] (7) After receiving the message command, the communication and navigation device under test processes and responds to the data, uploads the data to the central control unit test control module software through the cross-link interface unit, completes the reception, judgment, and display of the returned data, and completes the control of the working parameters of the device under test. If there is a functional cross-link between the first communication and navigation device and the second communication and navigation device, the central control unit will re-plan the functions and generate use cases, control the radio frequency signal adaptation unit and the excitation unit to jointly generate the corresponding excitation signal, generate the required cross-link function part test case, and drive the first communication and navigation device under test and the second communication and navigation device through the cross-link interface unit to complete the cross-link function verification.

[0061] (8) After the device under test completes the corresponding workflow, the corresponding status query command and status feedback parameters are uploaded to the central control unit test control module software through the cross-linking interface unit, and the function of the device under test of the use case is judged based on the feedback data whether the test is successful, and the execution result of the current test case is given, the result is stored and a test report is generated.

[0062] (9) After the test report is generated, it will show whether the function of the device under test is normal and the performance indicators. At this time, the test is completed, the power unit is turned off, and the test cable is removed.

[0063] The invention has been successfully applied to the pre-installation test and on-site power-on test of the aircraft communication and navigation system, realizing the automatic test of the functions and performance of various types of airborne equipment, completing the cross-linking simulation test of various systems, and forming an automatic test process. Through the dynamic matching technology of software and hardware, the modular and reconfigurable design concept is adopted, and the module is divided according to the different functions to be realized. Through the unified scheduling management of the corresponding software and hardware, the integrated test of the system is realized, and the interface dynamic matching technology based on task realization is applied to realize the reuse of test resources; the software radio technology is applied to realize the comprehensive navigation simulation excitation. Through the invention, the system test efficiency is greatly improved, and it is successfully applied to the work of aircraft batch production joint test, product troubleshooting, design verification test, etc. Through the hierarchical subsystem test and automatic test process planning, each aircraft saves about 50% of manpower and time costs, saves human resources, shortens the test cycle, and improves the troubleshooting efficiency. At the same time, the universality of interface and system software configuration development is taken into account, and it has strong expansibility in subsequent transformation, capacity improvement, function, etc. At the same time, the technology can be promoted and applied to the automation and programmed testing of the whole system, with good economic and social benefits.

Claims

1. An automated communication and navigation test simulation system architecture, characterized in that: include: Radio frequency signal adaptation unit, excitation unit, central control unit, bus data terminal unit, cross-linking interface unit; The central control unit is connected to the bus data terminal unit, the cross-linking interface unit, the radio frequency signal adaptation unit, and the excitation unit; the radio frequency signal adaptation unit is connected to the excitation unit; the bus data terminal unit is connected to the cross-linking interface unit; Each communication and navigation device to be tested is connected to the cross-linking interface unit and the radio frequency signal adaptation unit; The central control unit is used to send a request for generating radio frequency signals required by the first communication and navigation device to be tested and the second communication and navigation device to the excitation unit according to the test case requirements, send the communication and navigation devices corresponding to each radio frequency signal generated by the excitation unit to the radio frequency signal adaptation unit, and send a bus data request message to the bus data terminal unit; The test case requirement includes a function to be tested of a first communication navigation device to be tested, a second communication navigation device associated with the function to be tested of the first communication navigation device, and bus data interconnected between the first communication navigation device and the second communication navigation device and a bus data terminal unit; The excitation unit is used to generate a radio frequency signal according to the radio frequency signal generation request and send it to the radio frequency signal adaptation unit; The radio frequency signal adaptation unit is used to route the radio frequency signal to the corresponding communication navigation device according to the received radio frequency signal and the communication navigation device corresponding to the radio frequency signal; The bus data terminal unit is used to send bus data to the cross-link interface unit according to the bus data request message; The cross-linking interface unit is used to send the bus data to the corresponding communication navigation device through the respective corresponding bus interfaces; The cross-linking interface unit is also used to receive the test result of the first communication and navigation device to be tested, and send it to the central control unit.

2. The automated communication navigation test simulation system architecture according to claim 1, characterized in that: The central control unit is also used to send a radio frequency signal generation request required by the first communication and navigation device to be tested to the excitation unit according to the test case requirements, send the communication and navigation device corresponding to the radio frequency signal generated by the excitation unit to the radio frequency signal adaptation unit, and send a bus data request message to the bus data terminal unit; the test case requirements include the function to be tested of the first communication and navigation device to be tested, and the bus data interconnected between the first communication and navigation device and the bus data terminal unit.

3. The automated communication navigation test simulation system architecture according to claim 1, characterized in that: The central control unit is also used to display the test results.

4. The automated communication navigation test simulation system architecture according to claim 3, characterized in that: The central control unit is also used to obtain the working status of each communication and navigation device according to the test results and display it.

5. The automated communication navigation test simulation system architecture according to claim 1, characterized in that: The bus data terminal unit is used to simulate bus data related to communication and navigation, and / or receive, process and display other system bus data associated with the communication and navigation equipment.

6. The automated communication navigation test simulation system architecture according to claim 1, characterized in that: The RF signal generation request includes the frequency and power of the RF signal.

7. The automated communication navigation test simulation system architecture according to claim 1, characterized in that: Also includes: Power supply unit; The power supply unit is used to supply power to the radio frequency signal adaptation unit, the excitation unit, the central control unit, the bus data terminal unit, the cross-linking interface unit, and various communication and navigation devices; The central control unit is connected to the power supply unit and controls the power supply unit to turn on / off the power supply to each communication navigation device.

8. The automated communication navigation test simulation system architecture according to claim 1, characterized in that: The central control unit includes: avionics simulation module, message excitation module, test control module, and acquisition monitoring module; The avionics simulation module is used to simulate the functional interface between the avionics systems and the communication and navigation equipment; The message excitation module is used to complete the generation of the excitation unit message type and protocol, connect the communication navigation device under test through the serial port, and complete the transmission data function test; The test control module provides the step types that need to be edited in the test sequence, including test judgment, test action, logic control and synchronization, and has test start, run, pause and stop state switching; serial and parallel test mode selection, and dynamic display of data graphics. Through the serial port, the excitation control instructions can be sent to realize remote control of the excitation unit and the radio frequency signal adaptation unit, identify and match the communication address of the cross-linking interface unit, and realize dynamic matching of the interface communication between the cross-linking interface units; The acquisition and monitoring module generates the discrete excitation signal required by the communication and navigation equipment, and acquires, displays the status and analyzes the discrete quantity signal and bus data.

9. The automated communication navigation test simulation system architecture according to claim 1, characterized in that: The cross-linking interface unit is used to complete the cable interconnection of the signals of various parts of the system, and convert the connection signal into the corresponding communication address signal, which is uploaded to the test control module software in the central control unit through Ethernet. The communication interface is dynamically adapted according to the communication address signal to make the interconnected devices correspond to each other and realize the communication connection between the devices.

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