Platform and method for comprehensively and automatically testing aircraft flight control system based on network architecture

Abstract

The invention provides an aircraft flight control system comprehensive automatic test platform and method based on a network architecture. The platform comprises automatic test software, test control software, test control simulation equipment and a flight control subsystem airborne finished product to be tested. The test control simulation device comprises a comprehensive test control simulation device and a plurality of flight control subsystem test control simulation devices. Each flight control subsystem test control simulation device is connected with the corresponding flight control subsystem airborne finished product and is used for sending configuration information to the flight control subsystem airborne finished product and receiving acquisition information provided by the flight control subsystem airborne finished product; the test control software comprises ground maintenance data acquisition software, comprehensive test control software and flight control subsystem test control software; the test control software is connected with the test control simulation equipment, sends a control instruction to the test control simulation equipment, and receives response information of the control instruction sent by the test control simulation equipment; the ground maintenance data acquisition software is connected with the comprehensive test control simulation equipment and the plurality of flight control subsystem test control simulation equipment and is used for receiving acquired information; and the automatic test software is connected with the test control software, sends a control instruction to the comprehensive test control software and the flight control subsystem test control software, obtains a response, and obtains acquisition information sent by the ground maintenance data acquisition software. The comprehensive test technology of multi-bus acquisition and lumped control is combined, the establishment of the comprehensive test platform of the aircraft flight control system is optimized and completed, and the automatic comprehensive control and detection of the aircraft flight control system are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of aircraft flight control system testing, and in particular to a comprehensive automatic testing platform and method for an aircraft flight control system based on a network architecture. Background Art

[0002] The existing aircraft flight control system realizes the comprehensive information collection and centralized control of the main flight control, high lift control, and automatic flight control subsystems, and exchanges data with each subsystem through buses such as HB6096, 1553B, and AFDX. The aircraft flight control system has a complex composition, a variety of signal and bus types, and a huge amount of information exchange. It is necessary to conduct comprehensive testing of its functions and performance to ensure that the aircraft flight control system meets the installation requirements.

[0003] At present, the test method of aircraft flight control system is to use the aircraft flight control system comprehensive test platform to manually adjust the simulation parameters of the test platform to check the performance of the onboard finished flight control system.

[0004] Due to the complex cross-linking relationship of the flight control system, there is a large amount of information exchange between multiple systems such as the atmosphere, inertial navigation, and emission parameters. In addition, it is an important system that affects the flight safety of the aircraft. There are many test items involved in the test, and the amount of recorded data is large. There is a risk of test operation errors and data recording errors caused by the human-in-the-loop test mode. Based on the characteristics of the aircraft flight control system, which has many types of data, large amounts of information, and strong timeliness, it is impossible to achieve reliable automatic testing of the aircraft flight control system through the traditional test platform network architecture. Summary of the invention

[0005] The present invention provides an integrated automatic test platform and method for an aircraft flight control system based on a network architecture, which optimizes the construction of an integrated test platform for the aircraft flight control system by combining the integrated test technology of multi-bus acquisition and lumped control, and realizes the automated integrated control and detection of the aircraft flight control system.

[0006] The present invention provides a comprehensive automatic test platform for aircraft flight control systems based on a network architecture, comprising: automatic test software, test control software, test control simulation equipment and an onboard finished product of a flight control subsystem to be tested;

[0007] The test control simulation equipment includes: comprehensive test control simulation equipment and multiple flight control subsystem test control simulation equipment;

[0008] Each flight control subsystem test control simulation device is connected to the corresponding flight control subsystem airborne finished product, and is used to send configuration information to the flight control subsystem airborne finished product and receive collection information provided by the flight control subsystem airborne finished product;

[0009] The test control software includes: ground maintenance data acquisition software, comprehensive test control software and test control software for each flight control subsystem;

[0010] The test control software is connected to the test control simulation device, sends control instructions to the test control simulation device, and receives response information of the control instructions sent by the test control simulation device;

[0011] The ground maintenance data acquisition software is connected with the comprehensive test control simulation equipment and multiple flight control subsystem test control simulation equipment to receive the collected information;

[0012] The automatic test software is connected to the test control software, sends control instructions to the integrated test control software and the test control software of each flight control subsystem, obtains responses, and obtains collection information sent by the ground maintenance data collection software.

[0013] Optionally, the automatic test software is connected to the test control software via Ethernet, and the test control software is connected to the test control simulation device via Ethernet.

[0014] Optionally, the automatic test software establishes a TCP connection with each system test control software via Socket.

[0015] Optionally, the flight control subsystem includes three subsystems: automatic flight control, high lift, and main flight control.

[0016] Optionally, the test control simulation device is used to parse the data sent by the test control software via Ethernet and convert it into HB6096, 1553B, AFDX or discrete quantity signals through a functional board, and send it to the onboard finished product of the flight control subsystem to be tested.

[0017] Optionally, the control instruction is transmitted in the form of Socket via TCP protocol to realize Ethernet data transmission, and the transmitted data format includes: TCP header, data type, data length, data body and check bit;

[0018] The data body includes: software type, signal type, signal source, signal name, signal data format and signal value.

[0019] Optionally, the data format of the collected information includes: TCP header, data type, data length, data body and check bit;

[0020] The data body includes: software type, number of data items, number of channels, data unit word length, reserved bits, number of data items and data units; the data unit includes: signal name, signal data format and signal value of each channel number.

[0021] A second aspect of the present invention provides a network-based integrated automatic testing method for an aircraft flight control system, which is executed using a network-based integrated automatic testing platform for an aircraft flight control system as described in any one of the first aspects.

[0022] The present invention provides a comprehensive automatic test platform and method for an aircraft flight control system based on a network architecture, and the beneficial effects are:

[0023] Combining technologies such as multi-channel bus testing, distributed terminal control, and fault signal injection, the various types of information integrated by the flight control system are centrally collected, displayed, automatically controlled, and analyzed, realizing comprehensive automatic testing of multiple subsystems of the aircraft flight control system, improving the comprehensiveness of the test, effectively shortening the automatic testing time, and greatly improving aircraft production efficiency. The aircraft flight control system is automatically tested using the aircraft flight control system comprehensive test platform with a network architecture provided by the present invention, replacing the manual testing method of the flight control system airborne equipment using a full human-in-the-loop in the prior art, optimizing the testing method and improving the test reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Layout diagram of the test platform for comprehensive automatic test methods of aircraft flight control systems;

[0025] Figure 2 Network architecture diagram of the aircraft flight control system integrated test platform;

[0026] Figure 3 Signal flow diagram of comprehensive automatic test method for aircraft flight control system;

[0027] Figure 4 Schematic diagram of control data format for comprehensive automatic test method of aircraft flight control system. DETAILED DESCRIPTION

[0028] The present application is further described in detail below with reference to examples and drawings:

[0029] The present invention provides an integrated automatic test platform and method for an aircraft flight control system based on a network architecture, which optimizes the construction of an integrated test platform for the aircraft flight control system by combining the integrated test technology of multi-bus acquisition and lumped control, and realizes the automated integrated control and detection of the aircraft flight control system.

[0030] The invention provides a flight control system automatic testing method based on network architecture, which comprises the following modules to form the network architecture: 1) automatic testing software; 2) testing control software; 3) testing control simulation equipment; and 4) an airborne finished product interface to be tested.

[0031] In the automatic test method of the flight control system based on the network architecture, the network architecture is separated from the test control software, the control simulation device and the airborne finished product to be tested, and the control and collection information are transmitted hierarchically through the network architecture, that is, the automatic test software transmits the control command and maintenance information with the subsystem test software and the ground maintenance software through Ethernet, the subsystem software sends the control instruction to each subsystem simulation device through Ethernet, and the simulation device converts the Ethernet information into the corresponding HB6096, 1553B, AFDX and other bus signals, and sends them to the airborne finished product; the test control simulation device collects the working status of the airborne finished product in real time and feeds it back to the ground maintenance software or the test control software, and then the corresponding software uploads the collected data to the automatic test software, and the test software combines the result with the control command to obtain the test conclusion and automatically generates the test result.

[0032] In the automatic testing method, the automatic testing software establishes a TCP connection with each system test control software through Socket, and based on the different application characteristics of control commands and collected data, the control information is sent through short data and the collection results are uploaded through a data table.

[0033] The layout of the test platform is as follows Figure 1 As shown, it includes automatic test software, test control software, control simulation equipment, airborne finished product interface and test bench.

[0034] The test control software consists of 6 parts, including the test control software for the three subsystems of automatic flight control, high lift and main flight control. The subsystem test control software integrates a variety of simulation data control functions including HB6096, 1553B, AFDX and discrete signals, and realizes the control and collection of various types of data in the form of software. Each subsystem software is connected to the corresponding control simulation equipment via Ethernet to realize visual control of the subsystem simulation equipment.

[0035] The integrated test control software is divided into two parts: the upper and lower computers. The lower computer realizes the centralized processing of data of each subsystem and the startup control of the control simulation equipment, while the upper computer realizes the centralized control of the power modules of each subsystem and the display of the avionics interface; the ground maintenance data acquisition software realizes the collection, analysis and visual display of the airborne finished product maintenance interface data. The automatic test software collects, remotely controls and automatically processes the data of the automatic flight control, high lift, main flight control subsystem, integrated test control and ground maintenance data acquisition software.

[0036] The control simulation equipment consists of four parts, corresponding to the three subsystems of automatic flight control, high lift, main flight control and integrated control. The test control simulation equipment realizes the analysis of the data sent by the test control software through Ethernet and converts it into corresponding HB6096, 1553B, AFDX, discrete quantity signals through functional boards and connects with the airborne finished product interface as needed. In addition, the control simulation equipment also supports the collection of airborne finished product ground maintenance interface signals.

[0037] The airborne finished product interfaces are divided into control board, computer and sensor categories. Since the flight control system sensors are inertial sensitive devices, in order to realize automatic testing, a remote control interface is made for the fixed test bench to achieve automatic control of the turntable bench.

[0038] The network architecture of the test platform is as follows: Figure 2 As shown in the figure, the automatic test software is interconnected with the flight control system test control software including automatic flight control, high lift, main flight control subsystem, integrated control and ground maintenance software through Ethernet, and then its software platform is interconnected with the flight control system integrated test control equipment; the flight control system integrated simulation equipment realizes the conversion of various bus signals through the board card, and sends the power supply and simulation signals to the airborne finished product as needed according to the control information sent by the software platform. Data is transmitted through Ethernet to the front-end software side of the simulation equipment, and through the data bus to the airborne finished product test.

[0039] The signal flow diagram of the automatic test method is as follows Figure 3 As shown, the automatic test software sends the control signal to each subsystem and the integrated test control software through Ethernet. The test control software parses the control instruction and sends the corresponding information to the test simulation device through Ethernet. The simulation device converts the Ethernet information sent by the control software into real HB6096, 1553B, AFDX, and discrete quantity signals through the board card and supplies them to the input interface of the airborne finished product to be tested. The airborne finished product feeds back the processed result to the finished product data interface. The simulation device obtains the information of the output interface of the airborne finished product through millisecond-level information collection and converts it into Ethernet signal and sends it to the test control software or ground maintenance software. The test control software or ground maintenance software then uploads the information to the automatic test software in a periodic manner.

[0040] The control data format of the comprehensive automatic test method of aircraft flight control system is as follows Figure 4 As shown, the control data is used for information transmission between the automatic test software, the test control software and the ground maintenance software. The control data is transmitted in the form of Socket via TCP protocol to realize Ethernet data transmission. The format of the transmitted data is as follows Figure 4 As shown in item (4-1) in the figure. Since the automatic test software has higher requirements on the delay of the control instructions issued, the short packet data format is used for point data transmission. Its format is as follows Figure 4 As shown in (4-2); the data collected by each system is strongly correlated, so the long packet data format is used for data table transmission, and its format is as follows Figure 4 As shown in (4-3). Figure 4 For automatic testing software data format example, Figure 4 (4-2) is an example of the automatic test software setting the indicated airspeed signal of the No. 1 atmospheric engine in the main flight control test control software to 55km / h; Figure 4 (4-3) is a partial data example of uploading the data collection results of the main flight control FTI to the automatic test software.

Claims

1. A network-based integrated automatic test platform for aircraft flight control systems, characterized in that: include: Automatic test software, test control software, test control simulation equipment and airborne finished products of the flight control subsystem to be tested; The test control simulation equipment includes: comprehensive test control simulation equipment and multiple flight control subsystem test control simulation equipment; Each flight control subsystem test control simulation device is connected to the corresponding flight control subsystem airborne finished product, and is used to send configuration information to the flight control subsystem airborne finished product and receive collection information provided by the flight control subsystem airborne finished product; The test control software includes: ground maintenance data acquisition software, comprehensive test control software and flight control subsystem test control software; The test control software is connected to the test control simulation device, sends control instructions to the test control simulation device, and receives response information of the control instructions sent by the test control simulation device; The ground maintenance data acquisition software is connected with the comprehensive test control simulation equipment and multiple flight control subsystem test control simulation equipment to receive the collected information; The automatic test software is connected to the test control software, sends control instructions to the integrated test control software and the test control software of each flight control subsystem, obtains responses, and obtains collection information sent by the ground maintenance data collection software.

2. The network-based integrated automatic test platform for aircraft flight control systems according to claim 1, characterized in that: The automatic test software is connected to the test control software via Ethernet, and the test control software is connected to the test control simulation device via Ethernet.

3. The network-based integrated automatic test platform for aircraft flight control systems according to claim 2 is characterized in that: The automatic test software establishes a TCP connection with each system test control software through Socket.

4. The network-based integrated automatic test platform for aircraft flight control systems according to claim 1, characterized in that: The flight control subsystem includes three subsystems: automatic flight control, high lift, and main flight control.

5. The network-based integrated automatic test platform for aircraft flight control systems according to claim 1, characterized in that: The test control simulation equipment is used to parse the data sent by the test control software through Ethernet and convert it into HB6096, 1553B, AFDX or discrete quantity signals through the functional board card, and send it to the airborne finished product of the flight control subsystem to be tested.

6. The network-based integrated automatic test platform for aircraft flight control systems according to claim 3 is characterized in that: The control instructions are transmitted in the form of Socket through TCP protocol to realize Ethernet data transmission. The transmitted data format includes: TCP header, data type, data length, data body and check bit; The data body includes: software type, signal type, signal source, signal name, signal data format and signal value.

7. The network-based integrated automatic test platform for aircraft flight control systems according to claim 3 is characterized in that: The data format of the collected information includes: TCP header, data type, data length, data body and check bit; The data body includes: software type, number of data items, number of channels, data unit word length, reserved bits, number of data items and data units; the data unit includes: signal name, signal data format and signal values ​​of each channel number.

8. A comprehensive automatic testing method for an aircraft flight control system based on a network architecture, characterized in that: The method is implemented by using an integrated automatic test platform for aircraft flight control system based on network architecture as claimed in any one of claims 1 to 7.

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