Anti-collision system automatic tester based on radio frequency channel switching and testing method thereof

Abstract

The invention discloses an anti-collision system automatic tester based on radio frequency channel switching and a testing method thereof, an interface processing extension set is connected with tested equipment in a wireless communication mode and is used for receiving signals of the tested equipment, and the problems that in a traditional testing mode, the operation process is complex, and errors are prone to occurring are solved. The interface processing extension set is connected with the industrial control computer, the TCAS tester and the ATC / DME tester and is used for receiving radio signal data and realizing automatic processing and analysis of the data; measurement and control software is arranged in the industrial control computer and used for regulating and controlling the TCAS tester, the ATC / DME tester, the frequency spectrograph, the oscilloscope and the interface processing extension set according to signals of tested equipment and radio signal data, an automatic testing process is achieved, and therefore the problems that in a traditional testing mode, testing time is long, and efficiency is low are solved. The test efficiency of the TCAS airborne collision avoidance system UUT equipment is improved, the labor cost is reduced, and the flight safety is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of airborne collision avoidance, and particularly to an automated tester for a collision avoidance system based on radio frequency channel switching and a testing method thereof. Background Art

[0002] An airborne collision avoidance system (TCAS) is a crucial safety device in the modern aviation field. Its core function is to communicate with other aircraft in the air, monitor other aircraft in the surrounding airspace in real time, and effectively avoid in-air collision accidents. The basic function of this system is to periodically transmit interrogation signals, send interrogations to an air traffic control radar beacon system (ATCRBS) or an S-mode transponder with altitude reporting function, and listen for their response signals. By continuously tracking these response messages, the system can accurately obtain key parameters of surrounding aircraft, such as altitude, altitude change rate, distance, distance change rate, distance acceleration, and azimuth. After further complex calculations and analyses of the response signals, the system can accurately evaluate potential collision threats and promptly provide corresponding advisory information to the flight crew to ensure a certain safety distance between aircraft, thereby guaranteeing flight safety.

[0003] During actual operation, the acquired data will be combined with the current sensitivity level SL of the TCAS. This level parameter directly specifies the degree of protection that should be available around the aircraft, and further determines whether an intruding aircraft truly poses a threat. For each aircraft determined to be a threat, the system will perform separate processing. Based on the track data and coordination with other TCAS aircraft that may generate a resolution advisory (RA), the system will calculate and determine the lowest safe RA to ensure the maintenance of a safe interval during flight. When the threat test logic of the TCAS computer determines that a nearby aircraft may pose a potential collision or a close encounter, this logic will quickly decide on appropriate vertical maneuver strategies or restrictions on vertical maneuvers to ensure the safety interval of the TCAS aircraft and avoid dangerous situations.

[0004] To achieve the above functions, the TCAS airborne collision avoidance system needs to perform efficient data interaction with various other sensor systems on the aircraft, including a radio altimeter, a barometric altimeter, a global positioning system (GPS), a central control unit, etc. The bus architecture between the systems follows the ARINC429 international standard bus protocol, ensuring the compatibility and reliability of data transmission between different systems. Currently, the widely used TCAS airborne collision avoidance system in the market is the TCAS II system, and the unit under test (UUT) equipment mainly includes a TCAS transceiver host and an S-mode transponder.

[0005] In the whole machine production and the testing and maintenance of faulty parts, the testing of the UUT equipment of the TCAS airborne collision avoidance system is an essential process. However, the traditional testing method mainly relies on manpower to complete the performance and function testing, and there are many drawbacks in this way. On the one hand, the labor cost consumed is too high, and a large amount of manpower needs to be invested in the cumbersome testing operations; on the other hand, the whole testing process takes too much time, seriously affecting the production efficiency and the maintenance progress. In addition, the complexity of the operation process also increases the probability of errors, further reducing the accuracy and reliability of the testing.

[0006] In response to this current situation, some integrated airborne collision avoidance system testing equipment has emerged on the market. These devices are built by using general-purpose instruments and special-purpose instruments through network communication methods or General Purpose Interface Bus (GPIB) communication methods. Although the testing efficiency has been improved to a certain extent, there is still room for improvement. Summary of the Invention

[0007] Based on the problems raised in the above background technology, the purpose of the present invention is to provide an automated tester for the collision avoidance system based on radio frequency channel switching. By integrating the program control functions of general-purpose instruments and special-purpose instruments, a more efficient, accurate and convenient testing effect is achieved to meet the increasingly strict requirements for the testing of airborne collision avoidance systems in the aviation field, provide a more solid guarantee for flight safety, and solve the problem of low testing efficiency of existing integrated airborne collision avoidance system testing equipment.

[0008] The present invention is realized through the following technical solutions:

[0009] The first aspect of the present invention provides an automated tester for the collision avoidance system based on radio frequency channel switching, including:

[0010] An industrial control computer, a TCAS tester, an ATC / DME tester, a switch, a spectrum analyzer, an oscilloscope, and an interface processing extension;

[0011] The interface processing extension is connected to the device under test through a wireless communication method and is used to receive the signals of the device under test;

[0012] The interface processing extension is connected to the industrial control computer, the TCAS tester, the ATC / DME tester, the spectrum analyzer, and the oscilloscope and is used to receive radio signal data;

[0013] The TCAS tester, the ATC / DME tester, and the spectrum analyzer are connected to the industrial control computer through the switch;

[0014] The industrial control computer is built-in with measurement and control software, which is used to control the TCAS tester, the ATC / DME tester, the spectrum analyzer, the oscilloscope, and the interface processing extension according to the signals of the device under test and the radio signal data.

[0015] In the above technical solution, the interface processing extension is connected to the device under test through wireless communication to receive the signals of the device under test, which solves the problems of complex operation process and easy error in the traditional test method. The interface processing extension is connected to the industrial control computer, the TCAS tester, the ATC / DME tester, the spectrum analyzer, and the oscilloscope to receive radio signal data, realizing automatic data processing and analysis.

[0016] The industrial control computer is built-in with measurement and control software, which is used to control the TCAS tester, the ATC / DME tester, the spectrum analyzer, the oscilloscope, and the interface processing extension according to the signals of the device under test and the radio signal data, realizing an automatic test process, thus solving the problems of long test time and low efficiency in the traditional test method. Through this technical solution, the test efficiency of the UUT device of the TCAS airborne collision avoidance system can be significantly improved, the labor cost can be reduced, and flight safety can be ensured.

[0017] In an optional embodiment, the device under test includes: an ACAS host and an S-mode transponder.

[0018] In an optional embodiment,

[0019] The interface processing extension includes:

[0020] Transponder TOP1 to Transponder TOP8 and Transponder BOT1 to Transponder BOT8. Transponder TOP1 to Transponder TOP8, Transponder BOT1 to Transponder BOT8, and Transponder Interface 1 to Transponder Interface 8 are respectively connected to multiple S-mode transponders to obtain the radio signals of the S-mode transponders;

[0021] Host 1-T1 to Host 4-T1, Host 1-B1 to Host 4-B1, Host 1-T2 to Host 4-T2, Host 1-B2 to Host 4-B2, Host 1-T3 to Host 4-T3, Host 1-B3 to Host 4-B3, Host 1-T4 to Host 4-T4, and Host 1-B4 to Host 4-B4. The Host 1-T1 to Host 4-T1, Host 1-B1 to Host 4-B1, Host 1-T2 to Host 4-T2, Host 1-B2 to Host 4-B2, Host 1-T3 to Host 4-T3, Host 1-B3 to Host 4-B3, Host 1-T4 to Host 4-T4, Host 1-B4 to Host 4-B4, and Host Interface 1 to Host Interface 4 are respectively connected to multiple ACAS hosts for obtaining the radio signals of the ACAS hosts;

[0022] Among them, the radio signals of the S-mode transponder and the radio signals of the ACAS host are used for the detection of radio frequency channel impedance matching.

[0023] In an alternative embodiment, the spectrum analyzer is connected to the switch through a LAN interface.

[0024] In an alternative embodiment, the input measurement interface of the spectrum analyzer is connected to the RF interface of the interface processing extension.

[0025] In an alternative embodiment, the oscilloscope is connected to the industrial control computer through a USB interface, and the 4-channel interface of the oscilloscope is connected to CH1 to CH4 of the interface processing extension.

[0026] In an alternative embodiment, the anti-collision system automatic tester further includes: a first DC power supply component and a second DC power supply component;

[0027] The first DC power supply component and the second DC power supply component are connected to the interface processing extension.

[0028] The second aspect of the present invention provides an anti-collision system automatic test method based on radio frequency channel switching, including the following steps:

[0029] Step S1: Initialize the anti-collision system automatic tester based on radio frequency channel switching to generate a tester instance;

[0030] Step S2: Call the tester instance to perform radio frequency channel switching on the device under test to obtain the radio frequency channel under test;

[0031] Step S3: Obtain the radio frequency signal of the radio frequency channel under test, analyze the radio frequency signal, and obtain the radio frequency signal measurement result;

[0032] Step S4: Obtain the pass criterion of the device under test, compare the radio frequency signal measurement result with the pass criterion, and generate the result of the anti-collision test system.

[0033] In an optional embodiment, the initialization includes:

[0034] Use the measurement and control software in the industrial control computer to perform a connectivity test on the anti-collision system automated tester through a communication protocol;

[0035] Obtain the instrument parameters of the test equipment, and the measurement and control software creates a tester instance according to the instrument parameters.

[0036] In an optional embodiment, using the measurement and control software in the industrial control computer to perform a connectivity test on the anti-collision system automated tester through a communication protocol includes:

[0037] The measurement and control software performs a connectivity test on the first DC power supply component, the second DC power supply component, the TCAS tester, the ATC / DME tester, and the spectrum analyzer through the TCP / IP communication protocol;

[0038] The measurement and control software performs a connectivity test on the oscilloscope through USB communication.

[0039] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0040] 1. The interface processing extension machine of the present invention can support the hardware adaptation of different anti-collision devices, meet the adaptation of hardware interfaces and the compatibility of various signals, and realize the signal access of different anti-collision devices;

[0041] 2. The software sends or receives signals by remotely calling the 429 function module and the dedicated instrument function module to make different anti-collision products reach the working state; the software calls the dedicated instrument function module, the spectrum analyzer function module, the oscilloscope function module, etc. to complete the automated test of the transmitted or received signals of the anti-collision device;

[0042] 3. The present invention provides a radio frequency channel switching function to complete the signal access of the S-mode transponder or the device under test of the anti-collision host, ensuring the correct transmission of communication signals during the test of a single or multiple devices under test; the present invention completes the signal transfer to the general instrument and the dedicated instrument through the radio frequency switching function, and completes the automated measurement of the signal through the programmable instrument, realizing the automated test of the functional performance of multiple anti-collision system devices. Description of the Drawings

[0043] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings. In the drawings:

[0044] Figure 1 FIG. is a schematic structural diagram of an anti-collision system automated tester based on radio frequency channel switching provided in Embodiment 1 of the present invention;

[0045] Figure 2 FIG. is a schematic structural diagram of an interface processing extension provided in Embodiment 1 of the present invention. Detailed Embodiment

[0046] To make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the following will further elaborate on the present invention in conjunction with the embodiments and the drawings. The illustrative embodiments of the present invention and their descriptions are only used to explain the present invention and do not limit the present invention.

[0047] Embodiment 1

[0048] Embodiment 1 of the present invention provides an anti-collision system automated tester based on radio frequency channel switching, including:

[0049] An industrial control computer, a TCAS tester, an ATC / DME tester, a switch, a spectrum analyzer, an oscilloscope, and an interface processing extension;

[0050] The interface processing extension is connected to the device under test through a wireless communication method and is used to receive the signals of the device under test;

[0051] The interface processing extension is connected to the industrial control computer, the TCAS tester, the ATC / DME tester, the spectrum analyzer, and the oscilloscope and is used to receive radio signal data;

[0052] The TCAS tester, the ATC / DME tester, and the spectrum analyzer are connected to the industrial control computer through the switch;

[0053] The industrial control computer is built-in with measurement and control software, and the measurement and control software is used to regulate and control the TCAS tester, the ATC / DME tester, the spectrum analyzer, the oscilloscope, and the interface processing extension according to the signals of the device under test and the radio signal data.

[0054] It should be noted that

[0055] The interface processing extension is connected to the device under test through wireless communication, and is used to receive the signals of the device under test, which solves the problems of complicated operation process and easy error in the traditional test method. The interface processing extension is connected to the industrial control computer, the TCAS tester, the ATC / DME tester, the spectrum analyzer, and the oscilloscope, and is used to receive radio signal data, realizing the automated processing and analysis of data.

[0056] The industrial control computer is built-in with measurement and control software, which is used to control the TCAS tester, ATC / DME tester, spectrum analyzer, oscilloscope, and interface processing extension according to the signals of the device under test and radio signal data, realizing an automated test process, thus solving the problems of long test time and low efficiency in the traditional test method. Through this technical solution, the test efficiency of the TCAS airborne collision avoidance system UUT device can be significantly improved, the labor cost can be reduced, and flight safety can be ensured. Specifically, as Figure 1 shown, the automated collision avoidance system tester based on RF channel switching includes a TCAS tester, an ATC / DME tester, an industrial control computer, a switch, a first DC power supply module, a second DC power supply module, a spectrum analyzer, an oscilloscope, an interface processing extension, an ACAS host, and an S-mode transponder. Among them, the first DC power supply module and the second DC power supply module are respectively Figure 1 the DC power supply module 1 and DC power supply module 2 in

[0057] Among them, the TCAS tester, ATC / DME tester, first DC power supply module, second DC power supply module, and spectrum analyzer are connected to the industrial control computer through a switch; the oscilloscope is connected to the industrial control computer; the TCAS tester and ATC / DME tester are connected to the interface processing extension through a radio channel; the interface processing extension is respectively connected to the ACAS host and S-mode transponder through radio signals and key signals to complete the input of the signals of the device under test; the interface processing extension is respectively connected to the industrial control computer, TCAS tester, ATC / DME tester, first DC power supply module, and second DC power supply module to complete the automated analysis and measurement of radio signal data.

[0058] Among them, the industrial control computer is built-in with measurement and control software, which processes the radio signal data and the signals of the device under test through this test software, completes the control of the interface processing extension, determines the output signals, and gives the test results.

[0059] Furthermore, the interface processing extension is as Figure 2 shown

[0060] The interface processing extension includes:

[0061] Transponders TOP1 to TOP8 and transponders BOT1 to BOT8, where the transponders TOP1 to TOP8, transponders BOT1 to BOT8 and transponder interfaces 1 to 8 are respectively connected to multiple S-mode transponders for obtaining radio signals of the S-mode transponders;

[0062] Hosts 1-T1 to 4-T1, hosts 1-B1 to 4-B1, hosts 1-T2 to 4-T2, hosts 1-B2 to 4-B2, hosts 1-T3 to 4-T3, hosts 1-B3 to 4-B3, hosts 1-T4 to 4-T4, hosts 1-B4 to 4-B4, where the hosts 1-T1 to 4-T1, hosts 1-B1 to 4-B1, hosts 1-T2 to 4-T2, hosts 1-B2 to 4-B2, hosts 1-T3 to 4-T3, hosts 1-B3 to 4-B3, hosts 1-T4 to 4-T4, hosts 1-B4 to 4-B4 and host interfaces 1 to 4 are respectively connected to multiple ACAS hosts for obtaining radio signals of the ACAS hosts;

[0063] Among them, the radio signals of the S-mode transponders and the radio signals of the ACAS hosts are used for detecting the impedance matching of the radio frequency channels.

[0064] Among them, the hosts include Host 1, Host 2, Host 3 and Host 4; the transponders include Transponder 1, Transponder 2, Transponder 3, Transponder 4, Transponder 5, Transponder 6, Transponder 7, Transponder 8.

[0065] It should be noted that the transponder interfaces 1 to 8, transponder TOP1 to transponder TOP8, and transponder BOT1 to transponder BOT8 of the interface processing extension are respectively connected to multiple S-mode transponders. The host interfaces 1 to 4, host 1-T1 to host 4-T1, host 1-B1 to host 4-B1, host 1-T2 to host 4-T2, host 1-B2 to host 4-B2, host 1-T3 to host 4-T3, host 1-B4 to host 4-B4 of the interface processing extension are respectively connected to the ACAS host. The power supply interface of the interface processing extension is respectively connected to the first DC power supply component and the second DC power supply component. The bus 1 interface of the interface processing extension is connected to the bus board 1 of the industrial control computer. The bus 2 interface of the interface processing extension is connected to the bus board 2 of the industrial control computer. The TOP of the interface processing extension is connected to the dummy panel TOP of the ATC / DME tester. The BOT of the interface processing extension is connected to the dummy panel BOT of the ATC / DME tester. The T1 to T4 interfaces of the interface processing extension are connected to the dummy panels T1 to T4 of the TCAS tester. The B1 to B4 interfaces of the interface processing extension are connected to the dummy panels B1 to B4 of the TCAS tester. The RF interface of the interface processing extension is connected to the dummy panel RF of the spectrum analyzer. The CH1 to CH4 interfaces of the interface processing extension are connected to the dummy panels CH1 to CH4 of the oscilloscope. The transponder suppression interface of the interface processing extension is connected to the ATC-5000NG. The host suppression interface of the interface processing extension is connected to the RGS-2000NG. The transponder interface of the interface processing extension is connected to the front panel loading socket of the S-mode transponder. The host interface of the interface processing extension is connected to the front panel loading socket of the ACAS host. The interface processing extension can monitor the test connection adapter of the UUT working state and provide the test interfaces for the radio signals, key signals, and power supply voltages required for the working states of the S-mode transponder and the ACAS host. The interface processing extension completes the access of the hardware system of the UUT under test and completes the detection of the impedance matching of the RF channels of the ACAS host and the S-mode transponder.

[0066] Among them, the UUT is the device under test in this embodiment, and the dummy panel includes dummy panel 1, dummy panel 2, and dummy panel 3.

[0067] In an alternative embodiment, the spectrum analyzer is connected to the switch through the LAN interface, and the input measurement interface of the spectrum analyzer is connected to the RF interface of the interface processing extension.

[0068] It should be noted that the spectrum analyzer is connected to the switch through the LAN interface to realize interconnection with the industrial control computer, and the input measurement interface of the spectrum analyzer is connected to the RF port of the interface processing extension. The RF channel is switched through the RF switching function to the spectrum analyzer, and there is no need to manually operate the test cable. The measurement and control software remotely controls the spectrum analyzer to realize the automatic measurement operation of the RF signal of the device under test, and returns the measurement results to the software.

[0069] In an alternative embodiment, the oscilloscope is connected to the industrial control computer through the USB interface, and the 4-channel interface of the oscilloscope is connected to CH1-CH4 of the interface processing extension.

[0070] It should be noted that through the above structure, the multi-channel signals of the device under test are selected and passed to a specific channel. The measurement and control software remotely controls the oscilloscope to realize the automatic measurement operation of the signals of the device under test, and returns the measurement results to the software.

[0071] In an alternative embodiment, the anti-collision system automatic tester further includes: a first DC power supply component and a second DC power supply component;

[0072] The first DC power supply component and the second DC power supply component are connected to the interface processing extension.

[0073] It should be noted that 8 power supplies in the first DC power supply component or the second DC power supply component are connected to the switch through the LAN interface to complete interconnection with the industrial control computer. The power output interfaces of the first DC power supply component or the second DC power supply component are respectively connected to the power ports of the interface processing extension. The 220V interface of the first DC power supply component or the second DC power supply component is connected to the 220V mains power to complete the function of AC to DC conversion. The measurement and control software can remotely control the functions of the power supply component to realize the power-on and power-off operations of the working voltage +28V of the device under test.

[0074] Embodiment 2

[0075] Embodiment 2 of the present invention provides an anti-collision system automatic test method based on RF channel switching on the basis of Embodiment 1, including the following steps:

[0076] Step S1, initialize the anti-collision system automatic tester based on RF channel switching to generate a tester instance;

[0077] Step S2, call the tester instance to perform RF channel switching on the device under test to obtain the RF channel under test;

[0078] Step S3, obtain the RF signal of the RF channel under test, analyze the RF signal, and obtain the RF signal measurement result;

[0079] Step S4: Obtain the pass criterion of the device under test, compare the radio frequency signal measurement result with the pass criterion, and generate the test result of the collision avoidance system.

[0080] It should be noted that in step S1, the measurement and control software is started, the instrument-related parameters in the database are obtained, and instrument instances are created, including a 429 board, a 1553B board, an AFDX board, a first DC power supply assembly, a second DC power supply assembly, a TCAS tester, an ATC / DME tester, an interface processing extension, an oscilloscope, and a spectrum analyzer; the instrument program-controlled connectivity test is completed through communication protocols such as RS232 or VISA to ensure the normal communication of the underlying standard devices of the entire system.

[0081] In step S2, the measurement and control software adopts a modular design, calls the created instrument instances, powers on the UUT by sending a remote command to the power supply, and at the same time makes the UUT device reach the working condition by sending a command to the instrument. During the test, the software remotely controls the radio frequency channel switching function and switches the corresponding UUT device radio frequency signal according to the software command. The present invention can test a single or multiple S-mode transponders or ACAS hosts simultaneously.

[0082] In steps S3 and S4, the measurement and control software sends corresponding programmable instrument standard commands to special or general instruments according to the selected test items, measures and analyzes the radio frequency signals switched through the radio frequency channel switching function, and stores the test results in the database. The software reads the measurement results of the instrument according to the communication protocol, and at the same time compares them with the pass criteria of the UUT device in the database to determine whether the measurement results are qualified and obtain the test conclusion.

[0083] After obtaining the test conclusion, the measurement and control software reads the UUT device information, the selected test items, and the records of the test results and conclusions in the database, and completes the automatic generation of a test report in PDF format.

[0084] In an optional embodiment, the initialization includes:

[0085] Performing a connectivity test on the collision avoidance system automated tester by using the measurement and control software in the industrial control computer through a communication protocol;

[0086] Obtaining the instrument parameters of the test equipment, and the measurement and control software creates a tester instance according to the instrument parameters.

[0087] In an optional embodiment, performing a connectivity test on the collision avoidance system automated tester by using the measurement and control software in the industrial control computer through a communication protocol includes:

[0088] The measurement and control software performs connectivity tests on the first DC power supply component, the second DC power supply component, the TCAS tester, the ATC / DME tester, and the spectrum analyzer through the TCP / IP communication protocol;

[0089] The measurement and control software performs connectivity tests on the oscilloscope through USB communication.

[0090] It should be noted that the industrial control computer completes the data control and communication of the 429 board for testing the S-mode transponder or the 429 board for testing the ACAS host based on the bus protocol, as well as the input and output of key signal data of the device under test; provides the hardware operating environment for software operation, including the measurement and control software; the measurement and control software uses programmable standard commands to complete the power-on and power-off function control of the first DC power supply component and the second DC power supply component for the S-mode transponder or the ACAS host through TCP / IP protocol communication; the measurement and control software uses programmable standard commands to complete the signal measurement function of the spectrum analyzer for the S-mode transponder or the ACAS host through TCP / IP protocol communication; the measurement and control software uses programmable standard commands to complete the function control of the oscilloscope through USB communication; provides interfaces for the supporting mouse, keyboard, and display.

[0091] Among them, the measurement and control software described in this embodiment is the anti-collision system test control software.

[0092] This method designs and codes specific and modular test control software through the open-source development tool QT and the C++ language. The modular design improves the maintainability and scalability of the measurement and control software; drives the communication bus protocol of the test instrument and the underlying hardware device through standard commands to test the test cases according to the standard MOPS coding; completes the test operations based on the MOPS standard through the invocation of the function code module; automatically generates the test report according to the test report in the fixed format of the user and the test results in the database. The main core function modules of the measurement and control software: test automation execution, instrument program drive function module, test case code function module, test report generation function module, and interface interaction design of the measurement and control software.

[0093] The specific embodiments described above further elaborate on the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only the specific embodiments of the present invention and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic tester for collision avoidance system based on radio frequency channel switching, characterized in that: include: Industrial control computers, TCAS testers, ATC / DME testers, switches, spectrum analyzers, oscilloscopes, interface processing extensions; The interface processing extension is connected to the device under test via wireless communication, and is used to receive signals from the device under test; The interface processing extension is connected to the industrial control computer, the TCAS tester, the ATC / DME tester, the spectrum analyzer, and the oscilloscope, and is used to receive radio signal data; The TCAS tester, the ATC / DME tester, and the spectrum analyzer are connected to the industrial control computer via the switch; The industrial control computer has built-in measurement and control software, and the measurement and control software is used to control the TCAS tester, the ATC / DME tester, the spectrum analyzer, the oscilloscope, and the interface processing extension according to the signal of the equipment under test and the radio signal data.

2. The automatic tester for collision avoidance system based on radio frequency channel switching according to claim 1, characterized in that: The equipment under test includes: an ACAS host and an S-mode transponder.

3. The automatic tester for collision avoidance system based on radio frequency channel switching according to claim 2, characterized in that: The interface processing extension includes: Transponders TOP1 to TOP8 and transponders BOT1 to BOT8, wherein the transponders TOP1 to TOP8, the transponders BOT1 to BOT8 and the transponder interface 1 to the transponder interface 8 are respectively connected to a plurality of S-mode transponders, and are used to obtain radio signals of the S-mode transponders; Host 1-T1 to host 4-T1 and host 1-B1 to host 4-B1 and host 1-T2 to host 4-T2 and host 1-B2 to host 4-B2 and host 1-T3 to host 4-T3 and host 1-B3 to host 4-B3 and host 1-T4 to host 4-T4 and host 1-B4 to host 4-B4, the host 1-T1 to host 4-T1, host 1-B1 to host 4-B1, host 1-T2 to host 4-T2, host 1-B2 to host 4-B2, host 1-T3 to host 4-T3, host 1-B3 to host 4-B3, host 1-T4 to host 4-T4, host 1-B4 to host 4-B4 and host interface 1 to host interface 4 are respectively connected to multiple ACAS hosts for acquiring radio signals of the ACAS hosts; The radio signal of the S-mode transponder and the radio signal of the ACAS host are used for detecting impedance matching of radio frequency channels.

4. The automatic tester for collision avoidance system based on radio frequency channel switching according to claim 1, characterized in that: The spectrum analyzer is connected to the switch via a LAN interface.

5. The automatic tester for collision avoidance system based on radio frequency channel switching according to claim 1, characterized in that: The input measurement interface of the spectrum analyzer is connected to the RF interface of the interface processing extension.

6. The automatic tester for collision avoidance system based on radio frequency channel switching according to claim 1, characterized in that: The oscilloscope is connected to the industrial control computer via a USB interface, and the 4-channel interface of the oscilloscope is connected to CH1 to CH4 of the interface processing extension.

7. The automatic tester for collision avoidance system based on radio frequency channel switching according to claim 1, characterized in that: The anti-collision system automated tester further comprises: a first DC power supply component and a second DC power supply component; The first DC power supply assembly and the second DC power supply assembly are connected to the interface processing extension.

8. An automated test method for an anti-collision system based on radio frequency channel switching, characterized in that: The steps include: Step S1, initializing the automatic tester for collision avoidance system based on radio frequency channel switching according to any one of claims 1 to 7, and generating a tester instance; Step S2, calling the tester instance to switch the radio frequency channel of the device under test to obtain the radio frequency channel under test; Step S3: acquiring a radio frequency signal of the radio frequency channel under test, analyzing the radio frequency signal, and obtaining a radio frequency signal measurement result; Step S4: obtaining a qualified criterion of the device under test, comparing the radio frequency signal measurement result with the qualified criterion, and generating a result of the collision avoidance test system.

9. The automatic test method for collision avoidance system based on radio frequency channel switching according to claim 8, characterized in that: The initialization includes: Using the measurement and control software in the industrial control computer to perform a connectivity test on the automatic tester of the anti-collision system through a communication protocol; The instrument parameters of the test equipment are obtained, and the measurement and control software creates a tester instance according to the instrument parameters.

10. The automatic test method for collision avoidance system based on radio frequency channel switching according to claim 9, characterized in that: The connectivity test of the anti-collision system automatic tester is performed by using the measurement and control software in the industrial control computer through the communication protocol, including: The measurement and control software performs connectivity testing on the first DC power supply component, the second DC power supply component, the TCAS tester, the ATC / DME tester and the spectrum analyzer through the TCP / IP communication protocol; The measurement and control software performs a connectivity test on the oscilloscope via USB communication.

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