A portable helicopter-mounted ground surface inspection device

Abstract

This invention relates to the field of automatic testing technology, and in particular to a portable helicopter horizon surface testing device. The portable helicopter horizon surface testing device includes a PXI chassis, on which a PXI bus module, a test signal interface module, and a signal conversion module are installed. The PXI bus module is used to output control signals, power signals, and switching signals. The test signal interface module has a bidirectional communication connection with the PXI bus module. One end of the signal conversion module is connected to the test signal interface module, and the other end of the signal conversion module is connected to the horizon surface under test. This portable helicopter horizon surface testing device can meet the requirements for horizon surface testing, providing convenient testing for rapid horizon surface condition detection, enabling horizon surface maintenance and support work, effectively ensuring aircraft flight safety, and employing automated testing and diagnostic methods to effectively improve the accuracy and efficiency of horizon surface maintenance.

Description

Technical Field

[0001] This invention relates to the field of automatic testing technology, and in particular to a portable helicopter-mounted horizon surface testing device. Background Technology

[0002] A helicopter horizon indicator, also known as a gyro horizon indicator or vertical gyroscope, is a gyroscopic instrument based on the principle of a three-degree-of-freedom gyroscope. It establishes a precise and stable vertical or horizontal reference on the aircraft to measure pitch and roll angles, providing pilots with intuitive information about the aircraft's attitude. The helicopter horizon indicator is one of the most important instruments in aviation. In general aviation, the structure of the horizon indicator is much simpler than that of large passenger aircraft. It is often a standalone unit, operating independently and providing pilots with direct-reading reference instruments for pitch, roll, and other flight attitudes. Other malfunctions of helicopter horizon indicators mainly originate from the circuit board. Typically, the circuit board of an electric horizon indicator only provides power to the gyroscope rotor; its other function is to provide a flag warning signal to the gyroscope instrument. When the power fails, the gyroscope stops rotating, or the gyroscope speed is too low, and the power supplied to the gyroscope rotor coil falls below a certain value, a horizon indicator warning flag will appear, alerting the pilot that the horizon indicator is malfunctioning.

[0003] A survey of the actual testing and repair methods of repair units revealed that they generally use benchtop instruments, such as power supplies, multimeters, and oscilloscopes, to build testing platforms. These instruments are large and heavy, making them inconvenient to carry, especially when performing emergency repair tasks outside the office. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a portable helicopter ground surface inspection device to solve the problems of large size and heavy weight in the prior art, which are particularly inconvenient to carry when performing emergency maintenance tasks.

[0005] To achieve the above and other related objectives, the present invention provides a portable helicopter horizon surface testing device, including a PXI chassis, on which a PXI bus module, a test signal interface module, and a signal conversion module are installed. The PXI bus module is used to output control signals, power signals, and switching signals.

[0006] A test signal interface module, wherein the test signal interface module has a bidirectional communication connection with the PXI bus module;

[0007] A signal conversion module, one end of which is connected to the test signal interface module, and the other end of which is connected to the ground surface under test.

[0008] In one embodiment of the present invention, the portable helicopter ground surface detection device further includes:

[0009] An insulation resistance tester, wherein the insulation resistance tester and the signal conversion module have a bidirectional communication connection;

[0010] The display module has a bidirectional communication connection with the PXI bus module.

[0011] In one embodiment of the present invention, the PXI bus module includes:

[0012] The controller is connected to the test signal interface module via a PXI bus;

[0013] A matrix switch, wherein the matrix switch is bidirectionally connected to the controller via a PXI bus;

[0014] A digital multimeter, wherein the digital multimeter is bidirectionally connected to the controller via a PXI bus;

[0015] The power supply unit is bidirectionally connected to the controller via a PXI bus.

[0016] In one embodiment of the present invention, the PXI chassis includes:

[0017] The chassis body is equipped with a handle;

[0018] A screen adjustment button is mounted on the chassis body, and the screen adjustment button has a bidirectional communication connection with the controller;

[0019] A chassis switch is mounted on the chassis body and has a bidirectional communication connection with the controller.

[0020] In one embodiment of the present invention, the PXI chassis further includes:

[0021] A power indicator light is mounted on the chassis body and has a bidirectional communication connection with the controller.

[0022] In one embodiment of the present invention, the PXI chassis further includes:

[0023] The USB interface is installed on the chassis body and has a bidirectional communication connection with the controller.

[0024] In one embodiment of the present invention, the PXI chassis further includes:

[0025] A heat dissipation channel air inlet is installed at the bottom of the chassis body;

[0026] The heat dissipation channel air outlet is installed on the side of the chassis body.

[0027] In one embodiment of the present invention, the PXI chassis further includes:

[0028] A power switch is mounted on the side of the chassis body.

[0029] In one embodiment of the present invention, the PXI chassis further includes:

[0030] A power input interface is installed on the side of the chassis body.

[0031] In one embodiment of the present invention, the PXI chassis further includes:

[0032] A fuse box is mounted on the side of the chassis body.

[0033] As described above, the portable helicopter ground surface detection device of the present invention has the following beneficial effects:

[0034] The portable helicopter horizon surface testing equipment of the present invention can meet the requirements for horizon surface testing, provide convenient testing for rapid detection of horizon surface condition, carry out horizon surface maintenance and support work, effectively ensure the flight safety of aircraft, and improve the accuracy and efficiency of horizon surface maintenance by adopting automated testing and diagnostic methods.

[0035] The portable helicopter-mounted ground surface testing device of the present invention meets the performance requirements of testing equipment, and is small in size and light in weight.

[0036] The portable helicopter horizon testing device of the present invention provides mechanical support for the PXI module inserted into the chassis, enabling the PXI module to correctly mate with the connector on the bus backplane, providing unified power and bus signals, realizing the transmission of various commands, data and other information of the PXI module under program control on the bus backplane, and the cooling system keeps the PXI testing system in a good working environment. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of a portable helicopter ground surface detection device provided in an embodiment of this application.

[0038] Figure 2 This is a front view of a portable helicopter horizon detection device provided in an embodiment of this application.

[0039] Figure 3This is a rear view of a portable helicopter horizon detection device provided in an embodiment of this application.

[0040] Figure 4 This is a left-side view of a portable helicopter horizon detection device provided in an embodiment of this application.

[0041] Figure 5 This is a right-side view of a portable helicopter horizon detection device provided in an embodiment of this application.

[0042] Figure 6 This is a diagram of the heat dissipation duct structure of a portable helicopter ground surface detection device provided in an embodiment of this application.

[0043] Component designation explanation

[0044] 1 PXI chassis

[0045] 10 PXI bus modules

[0046] 11 Controller

[0047] 12 Matrix Switches

[0048] 13. Numerical Multimeter

[0049] 14 Power Supply Unit

[0050] 20 Test signal interface module

[0051] 30 Signal Adapter Module

[0052] 40. Measured ground level

[0053] 50 Insulation Resistance Tester

[0054] 60 Display Module

[0055] 111 Chassis Body

[0056] 112 Screen Adjustment Buttons

[0057] 113 Chassis Switch

[0058] 114 Power indicator light

[0059] 115 USB interface

[0060] 116 Heat dissipation channel air inlet

[0061] 117 Heat dissipation channel air outlet

[0062] 118 Power Switch

[0063] 119 Power Input Interface

[0064] 120 Fuse Box

[0065] 121 handle

[0066] 122 Grounding Post

[0067] 123 Connector Output Panel Detailed Implementation

[0068] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0069] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0070] Please see Figure 1 , Figure 1 This is a structural schematic diagram of a portable helicopter horizon surface testing device provided in an embodiment of this application. The present invention provides a portable helicopter horizon surface testing device that meets the requirements for horizon surface testing, provides convenient testing for rapid horizon surface condition detection, enables horizon surface maintenance and support work, effectively ensures aircraft flight safety, and improves the accuracy and efficiency of horizon surface maintenance by employing automated testing and diagnostic methods. The portable helicopter horizon surface testing device includes a PXI chassis 1, on which a PXI bus module 10, a test signal interface module 20, and a signal conversion module 30 are installed. The PXI bus module 10 is used to output control signals, power signals, and switching signals. The test signal interface module 20 has a bidirectional communication connection with the PXI bus module 10. One end of the signal conversion module 30 is connected to the test signal interface module 20, and the other end of the signal conversion module 30 is connected to the horizon surface 40 under test. Specifically, the test signal interface module 20 is a common test signal interface.

[0071] The portable helicopter horizon tester adopts a "chassis + functional module" structure, with a PXI bus instrument as its core. The PXI instrument module provides the main test and control resources required for testing the circuit board under test. The instrument resources and test program (TP) execution of the test equipment are controlled by the automatic test software of the embedded controller. The system uses a common test signal interface as the environment for centralized output of test resources. The test equipment and the horizon are interconnected via test adapter cables to achieve test signal adaptation, forming a connection path between the instrument resources and the horizon under test. Specifically, the common test signal interface is mainly a test connector, realizing the connection between the test equipment and the helicopter horizon and the allocation of the required test resources. The human-machine interactive semi-automatic testing method involves fixing the horizon under test on the turntable, starting the horizon tester test program, and powering the horizon under test. Following the program prompts, the turntable is rotated, and the turntable setting angle value is entered. The horizon test program automatically tests the relevant parameters, compares them with theoretical values, and provides a conclusion. The portable helicopter horizon testing equipment provides mechanical support for the PXI module inserted into the chassis, ensuring proper mating between the PXI module and the connector on the bus backplane; it provides unified power and bus signals, enabling the transmission of various commands, data, and other information from the PXI module under program control on the bus backplane; and the cooling system ensures that the PXI testing system operates in a good working environment.

[0072] The portable helicopter horizon leveling device also includes an insulation resistance tester 50 and a display module 60. The insulation resistance tester 50 has a bidirectional communication connection with the signal conversion module 30; the display module 60 has a bidirectional communication connection with the PXI bus module 10. The PXI bus module 10 includes a controller 11, a matrix switch 12, a digital multimeter 13, and a power supply unit 14. The controller 11 is connected to the test signal interface module 20 via the PXI bus; the matrix switch 12 has a bidirectional communication connection with the controller 11 via the PXI bus; the digital multimeter 13 has a bidirectional communication connection with the controller 11 via the PXI bus; and the power supply unit 14 has a bidirectional communication connection with the controller 11 via the PXI bus. The controller 11 is an embedded controller, which can be controlled and operated using software. It can also be used for instrument management and information querying of the portable helicopter horizon leveling device. The power supply unit 14 can include a DC power module and an AC power module. The controller 11 can also be connected to external modules such as a keyboard and mouse.

[0073] Please see Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 2This is a front view of a portable helicopter horizon detection device provided in an embodiment of this application. Figure 3 This is a rear view of a portable helicopter horizon detection device provided in an embodiment of this application. Figure 4 This is a left-side view of a portable helicopter horizon detection device provided in an embodiment of this application. Figure 5 This is a right-side view of a portable helicopter horizon detection device provided in an embodiment of this application. Figure 6 This is a structural diagram of the heat dissipation duct of a portable helicopter ground surface detection device provided in an embodiment of this application. The PXI chassis 1 includes a chassis body 111, a screen adjustment button 112, and a chassis switch 113. A handle 121 is installed on the chassis body 111; the screen adjustment button 112 is installed on the chassis body 111 and has a bidirectional communication connection with the controller 11; the chassis switch 113 is installed on the chassis body 111 and has a bidirectional communication connection with the controller 11.

[0074] The display module 60 includes a display screen or a monitor. For example, the display module 60 is a display screen used to display the test results of the portable helicopter ground surface detection device. The display screen can be set on the chassis body 111 of the portable helicopter ground surface detection device to facilitate users to view the test results.

[0075] The PXI chassis 1 also includes a power indicator light 114, which is mounted on the chassis body 111 and has a bidirectional communication connection with the controller 11.

[0076] The PXI chassis 1 also includes a USB interface 115, which is mounted on the chassis body 111 and has a bidirectional communication connection with the controller 11. Specifically, the USB interface 115 can connect to devices such as mobile phones and computers.

[0077] The PXI chassis 1 also includes a heat dissipation channel air inlet 116 and a heat dissipation channel air outlet 117. The heat dissipation channel air inlet 116 is installed at the bottom of the chassis body 111; the heat dissipation channel air outlet 117 is installed on the side of the chassis body 111. Specifically, the function of the heat dissipation channel air inlet 116 and the heat dissipation channel air outlet 117 is to provide heat dissipation for the entire portable helicopter ground surface detection equipment. Air flows in from the heat dissipation channel air inlet 116 and flows out from the heat dissipation channel air outlet 117, thus achieving the heat dissipation function. The PXI chassis 1 also includes a power switch 118, which is installed on the side of the chassis body 111. The PXI chassis 1 also includes a grounding post 122. The PXI chassis 1 also includes a power input interface 119, which is installed on the side of the chassis body 111. The power input interface 119 includes a DC power input interface and an AC power input interface. The PXI chassis 1 also includes a fuse box 120, which is installed on the side of the chassis body 111. When using the portable helicopter ground surface detection device, the power switch 118 is turned on first, and then the ground surface status is detected.

[0078] In summary, the portable helicopter horizon surface testing device of the present invention meets the requirements for horizon surface testing, provides convenient testing for rapid horizon surface condition detection, enables horizon surface maintenance and support work, effectively ensures aircraft flight safety, and, by employing automated testing and diagnostic methods, effectively improves the accuracy and efficiency of horizon surface maintenance. Furthermore, the portable helicopter horizon surface testing device of the present invention meets the performance requirements of testing equipment and is small in size and lightweight.

[0079] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A portable helicopter-mounted ground surface detection device, characterized in that: The system includes a PXI chassis (1), on which a PXI bus module (10), a test signal interface module (20), and a signal conversion module (30) are installed. The PXI bus module (10) is used to output control signals, power signals and switching signals; Test signal interface module (20), which has a bidirectional communication connection with the PXI bus module (10); A signal conversion module (30) is provided, one end of which is connected to the test signal interface module (20), and the other end of which is connected to the ground surface under test (40). The portable helicopter-mounted ground surface inspection device also includes: Insulation resistance tester (50), the insulation resistance tester (50) and the signal conversion module (30) are bidirectionally connected; The display module (60) is bidirectionally connected to the PXI bus module (10); The PXI bus module (10) includes: The controller (11) is connected to the test signal interface module (20) via a PXI bus; A matrix switch (12) is connected to the controller (11) via a PXI bus for bidirectional communication. A digital multimeter (13) is connected to the controller (11) via a PXI bus for bidirectional communication. The power supply unit (14) is bidirectionally connected to the controller (11) via a PXI bus.

2. The portable helicopter ground surface detection device according to claim 1, characterized in that, The PXI chassis (1) includes: A chassis body (111) is provided with a handle (121). A screen adjustment button (112) is mounted on the chassis body (111), and the screen adjustment button (112) is bidirectionally connected to the controller (11). A chassis switch (113) is mounted on the chassis body (111) and is bidirectionally connected to the controller (11).

3. The portable helicopter ground surface detection device according to claim 2, characterized in that, The PXI chassis (1) also includes: A power indicator light (114) is installed on the chassis body (111) and has a bidirectional communication connection with the controller (11).

4. The portable helicopter ground surface detection device according to claim 2, characterized in that, The PXI chassis (1) also includes: USB interface (115) is installed on the chassis body (111) and has a bidirectional communication connection with the controller (11).

5. A portable helicopter ground surface detection device according to claim 2, characterized in that, The PXI chassis (1) also includes: A heat dissipation channel air inlet (116) is installed at the bottom of the chassis body (111); A heat dissipation channel air outlet (117) is installed on the side of the chassis body (111).

6. A portable helicopter ground surface detection device according to claim 2, characterized in that, The PXI chassis (1) also includes: A power switch (118) is mounted on the side of the chassis body (111).

7. A portable helicopter ground surface detection device according to claim 2, characterized in that, The PXI chassis (1) also includes: A power input interface (119) is mounted on the side of the chassis body (111).

8. A portable helicopter ground surface detection device according to claim 2, characterized in that, The PXI chassis (1) also includes: A fuse box (120) is mounted on the side of the chassis body (111).

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