Suspension device performance test system and operation method

Abstract

The invention belongs to the technical field of aircraft function test and detection, and relates to a suspension device performance test system and an operation method, which are used for testing a suspension device of a transportation type aircraft in a ground state. The device is composed of an industrial computer, a signal conditioning box, an electric connector and the like, the signal conditioning box comprises a test function selection switch module, a current conditioning and display module, a power supply control and regulation module, a voltage conditioning and display module and a communication and test port module, and the performance test work of the suspension device can be automatically carried out. Instructions such as control and acquisition are completed by electronic equipment, so that the influence of personnel factors on the test quality is reduced; the electric connector has high expansibility, can be used for testing suspension devices of various models only by properly adjusting the electric connector, reduces the cost investment of testing equipment, and improves the utilization rate of the equipment; the test system is composed of electronic devices with high reliability and reasonable circuit logic relations, operation is easy, maintenance is convenient, safety and reliability are achieved, the working efficiency is greatly improved in actual use, and the working time is saved.

Description

Technical Field

[0001] The invention belongs to the technical field of aircraft function test and detection, and relates to a suspension device performance test system and method. Background Art

[0002] Suspension devices are commonly used in the transport and delivery systems of transport aircraft. They are important onboard equipment for aircraft to deliver cargo, weapons, parachute bags and other materials. Whether the performance of the suspension device meets the standards directly affects whether the aircraft can perform the delivery mission normally.

[0003] Different transport aircraft are equipped with different types of suspension devices, and the external interface definitions are different. Different types of suspension devices need to use a single matching test equipment to check their performance and functions, which has the problem of high test cost investment and low equipment utilization. In addition, the existing suspension device test equipment has a low degree of automation, and requires manual selection of product working mode, manual adjustment of product external test conditions, manual visual monitoring of test technical indicators, etc., and the test quality cannot be effectively guaranteed. Summary of the invention

[0004] Technical problem solved by the invention: The invention overcomes the shortcomings of the prior art and provides a suspension device performance testing system that is easy to use, accurate in testing, and has scalability. The system can carry out the performance testing of the suspension device in a highly automated manner and reduce the impact of human factors on the test quality. The system has high scalability and can adapt to the testing of various types of suspension devices, thereby reducing the cost investment of test equipment and improving equipment utilization.

[0005] The technical solution of the present invention:

[0006] In one aspect, the present invention provides a suspension device performance test system, the system comprising: an industrial computer 1, a signal conditioning box 2, an electrical connector 3;

[0007] The industrial computer 1 is used to input test instructions to the test system and output and display test data;

[0008] The internal functional modules of signal conditioning box 2 include:

[0009] Test function selection switch module 2a, used for selecting test methods and test functions;

[0010] The current conditioning and display module 2b is used to collect the release action current and status signal of the conditioned suspension device; it at least includes a current indication module and a current conditioning module;

[0011] The power control and regulation module 2c is used for controlling and regulating the power input of the test system; it at least includes a DC 0-30V adjustable power supply, a DC voltage regulation potentiometer, an AC 220V power switch, an AC 220V power input, and a voltage test interface;

[0012] The voltage conditioning and display module 2d is used to collect the conditioned release action voltage and status signal of the suspension device; it at least includes a voltage indication module and a voltage conditioning module;

[0013] The communication and test port module 2e realizes the drive control of the release circuit of the suspension device; it at least includes a communication interface module and a test interface module;

[0014] The electrical connector 3 has 7 signal paths, providing 2-5 suspension device release signals, 1 status indication signal, and 1 ground terminal.

[0015] Furthermore,

[0016] The front panel of the signal conditioning box 2 includes a function selection switch, a test voltage indicator, a test current indicator, a U / I external test port, a test voltage adjustment knob, a short plug, and a power switch; the rear panel includes an AC220V power input port, a grounding port, a test communication port, a test port, a digital display metering port, and a test current fuse, wherein the test communication port is connected to the data board of the industrial computer 1, and the test port is connected to the suspension device.

[0017] Furthermore,

[0018] The three signals in the test function selection switch module 2a are interconnected with the communication and test port module 2e, and the three signals are used for signal transmission of the test function options; the one signal in the test function selection switch module 2a is interconnected with the current conditioning and display module 2b and the voltage conditioning and display module 2d respectively, and the one signal is used as the input of the on-off signal of the current indication module and the on-off signal of the voltage indication module.

[0019] Furthermore,

[0020] The two signals in the current conditioning and display module 2b are interconnected with the communication and test port module 2e, and are used to input the working current value into the industrial control computer through the communication interface module; the three signals in the current conditioning and display module 2b are interconnected with the power control and regulation module 2c, and are used to collect and condition the voltage signal output by the power control and regulation module 2c into a current signal.

[0021] Furthermore,

[0022] Three signals in the power control and regulation module 2c are interconnected with an external AC220V power supply for providing power; four signals in the power control and regulation module 2c are interconnected with the voltage conditioning and display module 2d for collecting, conditioning and indicating the working voltage; two signals in the power control and regulation module 2c are interconnected with the current conditioning and display module 2b for collecting, conditioning and indicating the working current; two signals in the power control and regulation module 2c belong to the test end and are used for voltage signal detection by an external test instrument.

[0023] Furthermore,

[0024] The three signals in the voltage conditioning and display module 2d are interconnected with the communication and test port module 2e, and are used to input the working voltage value to the industrial control computer through the communication interface module; the two signals in the voltage conditioning and display module 2d are interconnected with the communication and test port module 2e, and are used to receive the test instructions of the industrial control computer; the two signals in the voltage conditioning and display module 2d are interconnected with the current conditioning and display module 2b, and are used to condition the collected voltage signals into current signals.

[0025] On the other hand, the present invention also provides an operating method of a suspension device performance testing system, the method being applied to the system, the method comprising:

[0026] By operating the industrial computer 1, the test system inputs test instructions and outputs test data; by operating the buttons and switches on the front and rear panels of the signal conditioning box 2 and observing the data displayed on its instruments, the corresponding functional modules inside the signal conditioning box 2 execute commands to complete the test task;

[0027] The details are as follows:

[0028] Connect the industrial computer 1, the signal conditioning box 2, the electrical connector 3 and the suspension device; turn the test function selection switch in the test function selection switch module 2a to the neutral position; turn on the power of the industrial computer 1; turn on the AC220V switch in the power control and regulation module 2c to provide AC220V power to the test system;

[0029] Carry out normal deployment function test of the suspension device;

[0030] Carry out the backup deployment function test of the suspension device;

[0031] Implement voltage test.

[0032] Furthermore,

[0033] When implementing the normal release function test of the suspension device, open the test software in the industrial computer 1; adjust the voltage conditioning module in the voltage conditioning and display module 2d, adjust and observe the voltage to 0V; turn the test function selection switch in the test function selection switch module 2a from the neutral position to the "release test" position, adjust the voltage conditioning module in the voltage conditioning and display module 2d, adjust and observe the voltage to 28V; select normal release on the software interface of the industrial computer 1 and the release power-on time is 0.2 seconds, the current conditioning and display module 2b outputs the working current value of the suspension device, and simultaneously transmits data to the industrial computer 1 through the communication and test port module 2e. The industrial computer 1 determines that the maximum current of the release pulse curve is less than 10A, and the release response time is less than or equal to 0.05 seconds, then the normal release function of the suspension device is normal.

[0034] Furthermore,

[0035] When implementing the backup release function test of the suspension device, open the test software in the industrial computer 1; adjust the voltage conditioning module in the voltage conditioning and display module 2d, adjust and observe the voltage to 0V; turn the test function selection switch in the test function selection switch module 2a from the neutral position to the "release test" position, adjust the voltage conditioning module in the voltage conditioning and display module 2d, adjust and observe the voltage to 28V; select the backup release function on the software interface of the industrial computer 1 and the release power-on time is 0.2 seconds, the current conditioning and display module 2b outputs the working current value of the suspension device, and simultaneously transmits data to the industrial computer 1 through the communication and test port module 2e. The industrial computer 1 determines that the maximum current of the release pulse curve is less than 10A, and the release response time is less than or equal to 0.05 seconds, then the backup release function of the suspension device is normal.

[0036] Furthermore,

[0037] When implementing the voltage test of the suspension device, open the test software in the industrial computer 1; adjust the voltage conditioning module in the voltage conditioning and display module 2d, adjust and observe the voltage to 5V, the suspension device should not move; continue to adjust the voltage conditioning module in the voltage conditioning and display module 2d, slowly increase the output voltage until the suspension device moves, stop adjusting the voltage conditioning and display module 2d, check the voltage indication in the test software of the industrial computer 1 and the voltage indication on the front panel of the signal conditioning box 2 should be less than 20V, then the voltage indicator of the suspension device is qualified.

[0038] The present invention provides a suspension device performance test system, which is designed with a set of highly integrated test circuits, and can carry out the performance test of the suspension device in a highly automated manner, relying on electronic equipment to complete control, collection and other instructions, thereby reducing the impact of human factors on the test quality; the test items and methods of the test system can meet the test tasks of commonly used types of suspension devices, and have high expansibility, and can be used for the test of various types of suspension devices only by appropriately adjusting the electrical connector, thereby reducing the cost investment of the test equipment and improving the equipment utilization rate; the test system is composed of highly reliable electronic devices and a reasonable circuit logic relationship, and is simple to operate, convenient to maintain, safe and reliable, and greatly improves work efficiency and saves work time in actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is the hardware composition diagram of the test system;

[0040] Figure 2 This is a schematic diagram of the front panel of the signal conditioning box;

[0041] Figure 3 This is a schematic diagram of the rear panel of the signal conditioning box;

[0042] Figure 4 This is the internal schematic diagram of the signal conditioning box;

[0043] Figure 5 This is the internal functional module diagram of the signal conditioning box;

[0044] Among them: 1, industrial computer; 2a, test function selection switch module; 2b, current conditioning and display module; 2c, power control and regulation module; 2d, voltage conditioning and display module; 2e, communication and test port module; 3, electrical connector. DETAILED DESCRIPTION

[0045] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings.

[0046] The present invention provides a suspension device performance test system, the hardware components of which are as follows: Figure 1 As shown, it includes an industrial computer 1, a signal conditioning box 2, and an electrical connector 3.

[0047] The industrial computer 1 includes a display, a mainframe, a keyboard, a mouse, etc., and is mainly used to input test instructions to the test system and output and display test data.

[0048] The external box of the signal conditioning box 2 is as follows Figure 2 , Figure 3As shown, the front panel includes a function selection switch, a test voltage indicator, a test current indicator, a U / I external test port, a test voltage adjustment knob, a short plug, a power switch, etc.; the rear panel includes an AC220V power input port, a grounding port, a test communication port, a test port, a digital display metering port, a test current fuse, etc., wherein the test communication port is connected to the data board of the industrial computer 1, and the test port is connected to the device under test.

[0049] The internal schematic diagram of the signal conditioning box is as follows: Figure 4 , Figure 5 As shown, it includes a test function selection switch module 2a, which is used for selecting the test method and test function; a current conditioning and display module 2b, which is used to realize the collection of the release action current and status signal of the conditioned suspension device, and mainly includes a current indication module and a current conditioning module; a power control and adjustment module 2c, which is used for controlling and adjusting the power input of the test system, and mainly includes a DC 0-30V adjustable power supply, a DC voltage adjustment potentiometer, an AC 220V power switch, an AC 220V power input, a voltage test interface, etc.; a voltage conditioning and display module 2d, which is used to realize the collection of the release action voltage and status signal of the conditioned suspension device, and mainly includes a voltage indication module, a voltage conditioning module, and a DC 5V / 24V power supply device; a communication and test port module 2e, which realizes the drive control of the release circuit of the suspension device, realizes the drive control of 2-way signals based on the acquisition board and signal conditioning, and receives 1-way status feedback signal, and mainly includes a communication interface module and a test interface module.

[0050] The three signals in the test function selection switch module 2a are interconnected with the communication and test port module 2e, and the three signals are used for signal transmission of the test function options; the one signal in the test function selection switch module 2a is interconnected with the current conditioning and display module 2b and the voltage conditioning and display module 2d respectively, and the one signal is used as the input of the on-off signal of the current indication module and the on-off signal of the voltage indication module.

[0051] The two signals in the current conditioning and display module 2b are interconnected with the communication and test port module 2e, and are used to input the circuit working current value to the industrial control computer through the communication interface; the three signals in the current conditioning and display module 2b are interconnected with the power control and regulation module 2c, and are used to collect and condition the voltage signal output by the power control and regulation module 2c into a current signal.

[0052] Three signals in the power control and regulation module 2c are interconnected with the system's external AC220V power supply to provide power for the test circuit; four signals in the power control and regulation module 2c are interconnected with the voltage conditioning and display module 2d to collect, condition and indicate the working voltage in the test circuit; two signals in the power control and regulation module 2c are interconnected with the current conditioning and display module 2b to collect, condition and indicate the working current in the test circuit; two signals in the power control and regulation module 2c belong to the test end and are used for voltage signal detection by external test instruments.

[0053] The three signals in the voltage conditioning and display module 2d are interconnected with the communication and test port module 2e, and are used to input the circuit working voltage value to the industrial control computer through the communication interface; the two signals in the voltage conditioning and display module 2d are interconnected with the communication and test port module 2e, and are used to receive the industrial control computer test software instructions; the two signals in the voltage conditioning and display module 2d are interconnected with the current conditioning and display module 2b, and are used to condition the voltage signal collected in the test circuit into a current signal.

[0054] The communication and test port module 2e is interconnected with the signals in the above modules respectively.

[0055] The electrical connector 3 uses an aviation plug of model JY27468T11F99PN, which has 7 signals and can provide 2-5 suspension device release signals, 1 status indication signal, and 1 ground terminal.

[0056] like Figure 1-Figure 5 As shown, the invention consists of an industrial computer 1, a signal conditioning box 2, an electrical connector 3, etc., wherein the signal conditioning box includes a test function selection switch module 2a, a current conditioning and display module 2b, a power control and regulation module 2c, a voltage conditioning and display module 2d, a communication and test port module 2e, etc.

[0057] During the specific implementation, the test instructions are input into the test system and the test data is output and displayed by operating the industrial computer 1; by operating the buttons and switches on the front and rear panels of the signal conditioning box 2 and observing the instrument display data, the corresponding functional modules inside the signal conditioning box 2 execute the commands to complete the test task.

[0058] Connect the industrial computer 1, the signal conditioning box 2, the electrical connector 3 and the product under test; turn the test function selection switch in the test function selection switch module 2a to the neutral position; turn on the power of the industrial computer 1; turn on the AC220V switch in the power control and regulation module 2c to provide AC220V power to the test system;

[0059] When the normal release function test of the suspension device is implemented, the test software in the industrial computer 1 is opened; the voltage conditioning module in the voltage conditioning and display module 2d is adjusted, and the voltage is adjusted and observed to 0V; the test function selection switch in the test function selection switch module 2a is moved from the neutral position to the "release test" position, and the voltage conditioning module in the voltage conditioning and display module 2d is adjusted, and the voltage is adjusted and observed to 28V; the normal release power-on time is set to 0.2 seconds on the software interface of the industrial computer 1, and the "normal release switch" is turned on to start release, the current conditioning and display module 2b outputs the working current value of the suspension device, and simultaneously transmits data to the industrial computer 1 through the communication and test port module 2e. The industrial computer 1 determines that the maximum current of the release pulse curve is less than 10A, and the release response time is less than or equal to 0.05 seconds, then the test is passed.

[0060] When implementing the backup release function test of the suspension device, open the test software in the industrial computer 1; adjust the voltage conditioning module in the voltage conditioning and display module 2d, adjust and observe the voltage to 0V; turn the test function selection switch in the test function selection switch module 2a from the neutral position to the "release test" position, adjust the voltage conditioning module in the voltage conditioning and display module 2d, adjust and observe the voltage to 28V; set the normal release power-on time to 0.2 seconds on the software interface of the industrial computer 1, and turn on the "backup release switch" to start release, the current conditioning and display module 2b outputs the working current value of the suspension device, and simultaneously transmits data to the industrial computer 1 through the communication and test port module 2e. The industrial computer 1 determines that the maximum current of the release pulse curve is less than 10A, and the release response time is less than or equal to 0.05 seconds, then the test passes.

[0061] When implementing the voltage test, open the test software in the industrial computer 1; adjust the voltage conditioning module in the voltage conditioning and display module 2d, adjust and observe the voltage to 5V, and the suspension device should not move; continue to adjust the voltage conditioning module in the voltage conditioning and display module 2d, slowly increase the output voltage until the suspension device moves, stop adjusting the voltage conditioning and display module 2d, check the voltage indication in the test software of the industrial computer 1 and the voltage indication on the front panel of the signal conditioning box 2 should be less than 20V.

[0062] The present invention provides a suspension device performance test system, which is designed with a set of highly integrated test circuits, and can carry out the performance test of the suspension device in a highly automated manner, relying on electronic equipment to complete control, collection and other instructions, thereby reducing the impact of human factors on the test quality; the test items and methods of the test system can meet the test tasks of commonly used types of suspension devices, and have high expansibility, and can be used for the test of various types of suspension devices only by appropriately adjusting the electrical connector, thereby reducing the cost investment of the test equipment and improving the equipment utilization rate; the test system is composed of highly reliable electronic devices and a reasonable circuit logic relationship, and is simple to operate, convenient to maintain, safe and reliable, and greatly improves work efficiency and saves work time in actual use.

Claims

1. A suspension device performance testing system, characterized in that: The system comprises: an industrial computer (1), a signal conditioning box (2), and an electrical connector (3); The industrial computer (1) is used to input test instructions to the test system and output and display test data; The internal functional modules of the signal conditioning box (2) include: A test function selection switch module (2a), used for selecting a test method and a test function; The current conditioning and display module (2b) is used to collect the conditioned release action current and status signal of the suspension device; it at least comprises a current indication module and a current conditioning module; A power control and regulation module (2c), used for controlling and regulating the power input of the test system; comprising at least a DC 0-30V adjustable power supply, a DC voltage regulation potentiometer, an AC 220V power switch, an AC 220V power input, and a voltage test interface; A voltage conditioning and display module (2d) is used to collect the conditioned release action voltage and status signal of the suspension device; it at least comprises a voltage indication module and a voltage conditioning module; A communication and test port module (2e) realizes the drive control of the release circuit of the suspension device; it at least comprises a communication interface module and a test interface module; The electric connector (3) has 7 signal paths, providing 2-5 suspension device release signals, 1 status indication signal and 1 ground terminal.

2. A suspension device performance testing system according to claim 1, characterized in that: The front panel of the signal conditioning box (2) includes a function selection switch, a test voltage indicator, a test current indicator, a U / I external test port, a test voltage adjustment knob, a short plug, and a power switch; the rear panel includes an AC220V power input port, a grounding port, a test communication port, a test port, a digital metering port, and a test current fuse, wherein the test communication port is connected to the data board of the industrial computer (1), and the test port is connected to the suspension device.

3. A suspension device performance testing system according to claim 1, characterized in that: Three signals in the test function selection switch module (2a) are interconnected with the communication and test port module (2e), and the three signals are used for signal transmission of the test function options; one signal in the test function selection switch module (2a) is interconnected with the current conditioning and display module (2b) and the voltage conditioning and display module (2d), respectively, and the one signal is used as an input of an on / off signal of a current indication module and an on / off signal of a voltage indication module.

4. A suspension device performance testing system according to claim 1, characterized in that: Two signals in the current conditioning and display module (2b) are interconnected with the communication and test port module (2e) to input the working current value into the industrial control computer through the communication interface module; three signals in the current conditioning and display module (2b) are interconnected with the power control and regulation module (2c) to collect the voltage signal output by the power control and regulation module (2c) and regulate it into a current signal.

5. A suspension device performance testing system according to claim 1, characterized in that: Three signals in the power control and regulation module (2c) are interconnected with an external AC220V power supply for providing power; four signals in the power control and regulation module (2c) are interconnected with a voltage conditioning and display module (2d) for collecting, conditioning and indicating the working voltage; two signals in the power control and regulation module (2c) are interconnected with a current conditioning and display module (2b) for collecting, conditioning and indicating the working current; and two signals in the power control and regulation module (2c) belong to a test terminal and are used for connecting an external test instrument to perform voltage signal detection.

6. A suspension device performance testing system according to claim 1, characterized in that: Three signals in the voltage conditioning and display module (2d) are cross-linked with the communication and test port module (2e) to input the working voltage value to the industrial control computer through the communication interface module; two signals in the voltage conditioning and display module (2d) are cross-linked with the communication and test port module (2e) to receive the test instructions of the industrial control computer; and two signals in the voltage conditioning and display module (2d) are cross-linked with the current conditioning and display module (2b) to condition the collected voltage signals into current signals.

7. A method for operating a suspension device performance test system, characterized in that: The method is applied to the system according to any one of claims 1 to 6, and the method comprises: By operating the industrial computer (1), the test system inputs test instructions and outputs test data; by operating the buttons and switches on the front and rear panels of the signal conditioning box (2) and observing the data displayed on its instrument, the corresponding functional module inside the signal conditioning box (2) executes the command to complete the test task; The details are as follows: The industrial computer (1), the signal conditioning box (2), the electrical connector (3) and the suspension device are connected; the test function selection switch in the test function selection switch module (2a) is turned to a neutral position; the power supply of the industrial computer (1) is turned on; the AC220V switch in the power control and regulation module (2c) is turned on to provide AC220V power to the test system; Carry out normal deployment function test of the suspension device; Carry out the backup deployment function test of the suspension device; Implement voltage test.

8. The operating method of a suspension device performance test system according to claim 7, characterized in that: When the normal release function test of the suspension device is implemented, the test software in the industrial computer (1) is opened; the voltage conditioning module in the voltage conditioning and display module (2d) is adjusted, and the voltage is adjusted and observed to 0V; the test function selection switch in the test function selection switch module (2a) is turned from the neutral position to the "release test" position, and the voltage conditioning module in the voltage conditioning and display module (2d) is adjusted, and the voltage is adjusted and observed to 28V; normal release is selected on the software interface of the industrial computer (1) and the release power-on time is 0.2 seconds, the current conditioning and display module (2b) outputs the working current value of the suspension device, and simultaneously transmits data to the industrial computer (1) through the communication and test port module (2e), and the industrial computer (1) determines that the maximum current of the release pulse curve is less than 10A, and the release response time is less than or equal to 0.05 seconds, then the normal release function of the suspension device is normal.

9. The operating method of a suspension device performance test system according to claim 7, characterized in that: When the backup release function test of the suspension device is implemented, the test software in the industrial computer (1) is opened; the voltage conditioning module in the voltage conditioning and display module (2d) is adjusted, and the voltage is adjusted and observed to 0V; the test function selection switch in the test function selection switch module (2a) is turned from the neutral position to the "release test" position, and the voltage conditioning module in the voltage conditioning and display module (2d) is adjusted, and the voltage is adjusted and observed to 28V; the backup release function is selected on the software interface of the industrial computer (1) and the release power-on time is 0.2 seconds, the current conditioning and display module (2b) outputs the working current value of the suspension device, and simultaneously transmits data to the industrial computer (1) through the communication and test port module (2e), and the industrial computer (1) determines that the maximum current of the release pulse curve is less than 10A, and the release response time is less than or equal to 0.05 seconds, then the backup release function of the suspension device is normal.

10. The operating method of a suspension device performance test system according to claim 7, characterized in that: When implementing the voltage test of the suspension device, open the test software in the industrial computer (1); adjust the voltage conditioning module in the voltage conditioning and display module (2d), adjust and observe the voltage to 5V, and the suspension device should not move; continue to adjust the voltage conditioning module in the voltage conditioning and display module (2d), slowly increase the output voltage until the suspension device moves, stop adjusting the voltage conditioning and display module (2d), check the voltage indication in the test software of the industrial computer (1) and the voltage indication on the front panel of the signal conditioning box (2) should be less than 20V, then the voltage indicator of the suspension device is qualified.

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