Inspection device for aligning movable base to ground

Abstract

The utility model discloses a detection device for aligning a moving base to the ground, which comprises moving base internal field detection equipment connected with a test object. The movable base inner field detection equipment comprises a power supply module, an angle generator, an alignment parameter simulator, a comprehensive instrument display, a bus monitor, an industrial personal computer and a man-machine interface; a high-precision and high-resolution angle generator is adopted to receive a moving course signal returned by the tested equipment and convert the moving course signal into a digital signal which can be identified by test software, and the output signal is stable and reliable; the alignment parameter simulator can realize the simulation sending function of navigation alignment information and the simulation sending function of moving course information; the bus monitor can monitor information sent and received on the bus card and serial port information returned by the angle generator, and the information and the serial port information are displayed on the comprehensive instrument display in real time, so that the bus monitoring function can be realized, the bus communication condition and the normal communication function can be conveniently monitored, and the accuracy and the effectiveness of signal conversion of the tested piece can be evaluated.

Description

Technical Field

[0001] The utility model relates to military aircraft test equipment, in particular to a moving base aligned with the ground inspection device. Background Art

[0002] During the helicopter's dynamic base alignment process, navigation alignment information output by the alignment control device is sent via an interface to an interface conversion device. The interface conversion device receives the information, performs protocol conversion, and outputs navigation information that meets the requirements for helicopter inertial navigation dynamic base alignment for the helicopter to perform dynamic base alignment. Heading information output by the mobile heading measurement device is sent via an interface to the interface conversion device. The interface conversion device receives the information and converts it into a resolver heading signal that meets the requirements for helicopter inertial navigation dynamic base alignment for the helicopter to perform heading calibration. Therefore, it is necessary to design a ground-based dynamic base alignment inspection device to test the accuracy of the helicopter's dynamic base alignment information system transmission and the effectiveness of the helicopter's dynamic base alignment function in the field, verifying the function and performance of the dynamic base alignment interface conversion device. This device completes the dynamic base alignment of the helicopter's onboard inertial navigation system before takeoff. The function and performance of the dynamic base alignment interface conversion device are also verified in the field. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a device for checking a movable base aligned with the ground.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] The utility model provides a dynamic base alignment ground inspection device, comprising a dynamic base internal field detection device, the base internal field detection device is connected to a test object; the dynamic base internal field detection device comprises a power module, an angle generator, an alignment parameter simulator, a comprehensive instrument display, a bus monitor, an industrial computer and a human-machine interface; the output end of the power module is connected to the input end of the industrial computer, the output end of the angle generator is connected to the input end of the industrial computer, the input end of the angle generator is connected to the test object, the alignment parameter simulator is connected to the industrial computer and the test object respectively; the bus monitor is connected to the industrial computer and the test object respectively, the instrument display is connected to the industrial computer, and the human-machine interface is connected to the industrial computer;

[0006] The angle generator is used to convert the test object into a digital signal and send it to the industrial computer through the serial port for processing; the alignment parameter simulator is used to simulate the dynamic base alignment information and display it in the form of an image on the integrated instrument display; the bus monitor is used to monitor the test object data and display it in real time on the integrated instrument display; the industrial computer is used to implement data interaction and software analysis, and display the analysis results on the integrated instrument display;

[0007] It also includes a dynamic base alignment external field detection device, which is connected to the test object and is used for the device to perform detection in the external field.

[0008] Furthermore, a fuse and a power switch are provided between the power module and the industrial computer, and the power module realizes safe power supply to the device through the fuse and the power switch.

[0009] Furthermore, the angle generator uses an AD2S82 chip to receive the rotary transformer signal output by the test object and convert it into a digital signal suitable for an industrial computer.

[0010] Furthermore, the alignment parameter simulator is provided with a bus card, and the alignment parameter simulator sends the dynamic base alignment information generated by simulation to the test object via the bus card.

[0011] Preferably, the bus monitor monitors the communication data of the bus card and the serial port, and displays the data in real time on the integrated instrument display.

[0012] Preferably, the industrial computer reads back the data converted by the test object through the receiving channel of the bus card and the serial port channel of the angle generator.

[0013] Furthermore, the integrated instrument display uses an APC7170-CT industrial display to display the output images of simulated attitude, heading and speed and bus monitor data to achieve human-computer interaction.

[0014] The beneficial effects of the utility model are:

[0015] 1) This utility model adopts a high-precision and high-resolution angle generator to receive the moving heading signal returned by the device under test and convert it into a digital signal that can be recognized by the test software. The output signal is stable and reliable.

[0016] 2) The alignment parameter simulator of the present invention can realize the simulated sending of navigation alignment information and mobile heading information; it has the function of simulating the alignment information of the output interface of the alignment control device; it has the function of simulating the helicopter receiving navigation alignment information; it has the function of simulating the mobile heading information of the output interface of the mobile heading measurement device; it has the function of simulating the helicopter receiving the mobile heading information output by the rotary transformer.

[0017] 3) The utility model is equipped with a bus monitor that can monitor the information sent and received on the bus card, as well as the serial port information returned by the angle generator, and display it in real time on the integrated instrument display, which can realize the bus monitoring function, facilitate the monitoring of bus communication status and communication function, and evaluate the accuracy and effectiveness of the signal conversion of the device under test.

[0018] 4) The utility model facilitates the in-situ completion of the dynamic base alignment function of the helicopter inertial navigation system in the field, and the completion of the dynamic base alignment interface conversion device function and performance testing function in the field.

[0019] 5) This utility model has the functions of equipment self-test, data storage, data analysis, and data export; the data conversion time is no more than 1ms; the power supply unit has a 2A fuse to prevent high current shock; the current consumption is no more than 1A. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a device for checking a movable base aligned with the ground according to an embodiment of the present utility model;

[0021] Figure 2 This is a circuit diagram of a power supply module of a moving base aligned with a ground inspection device according to an embodiment of the present utility model;

[0022] Figure 3 This is a circuit diagram of an angle generator for a moving base aligned with a ground inspection device according to an embodiment of the present utility model;

[0023] Figure 4 This is a schematic diagram showing the effect of an alignment parameter simulator for a moving base aligned with a ground inspection device according to an embodiment of the present utility model;

[0024] Figure 5 This is a schematic diagram of the integrated instrument display effect of a moving base aligned with a ground inspection device according to an embodiment of the utility model;

[0025] Figure 6 This is a schematic diagram of a bus monitor effect of a movable base aligned with a ground inspection device according to an embodiment of the utility model;

[0026] Figure 7 This is a physical schematic diagram of an industrial computer for a moving base aligned with a ground inspection device according to an embodiment of the utility model. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0028] The utility model discloses a moving base aligned with the ground inspection device, the structural diagram of which is as follows Figure 1As shown, it includes a dynamic base internal field detection device, which is connected to a test object; the dynamic base internal field detection device includes a power module, an angle generator, an alignment parameter simulator, an integrated instrument display, a bus monitor, an industrial computer and a human-machine interface; the output end of the power module is connected to the input end of the industrial computer, the output end of the angle generator is connected to the input end of the industrial computer, the input end of the angle generator is connected to the test object, and the alignment parameter simulator is connected to the industrial computer and the test object respectively; the bus monitor is connected to the industrial computer and the test object respectively, the instrument display is connected to the industrial computer, and the human-machine interface is connected to the industrial computer; the angle generator is used to convert the test object into a digital signal and send it to the industrial computer for processing through the serial port; the alignment parameter simulator is used to simulate the generation of dynamic base alignment information and display it in the form of an image on the integrated instrument display; the bus monitor is used to monitor the test object data and display it in real time on the integrated instrument display; the industrial computer is used to realize data interaction and software analysis, and display the analysis results on the integrated instrument display.

[0029] It also includes dynamic base alignment outfield detection equipment, which is connected to the test object and is used for the device to perform detection in the outfield to realize the function in the indoor field. It is not much different from the indoor field detection equipment and will not be described in detail here. The dynamic base alignment outfield detection equipment can simulate the alignment control device and the mobile heading measurement device to send the dynamic base alignment inertial navigation information and the mobile heading information to the dynamic base alignment interface of the helicopter, and then be converted by the dynamic base alignment interface conversion device and transmitted to the helicopter control console. By comparing the simulated dynamic base alignment information on the bus monitor interface of the dynamic base alignment outfield detection equipment with the information received by the helicopter control console, the correctness and effectiveness of the helicopter dynamic base alignment function can be detected in the ground state, and the dynamic base alignment function of the airborne inertial navigation system can be completed before taking off from the ship.

[0030] During the functional check of the dynamic base alignment interface converter, the connectors of the dynamic base alignment interface converter are connected to the dynamic base alignment ground inspection equipment, and the automatic test software is run. The test software controls the alignment parameter simulator to simulate the transmission of navigation alignment information and movement heading information according to the established parameters. It also receives the converted information fed back by the device under test, analyzes and compares it, and completes the functional and performance check of the dynamic base alignment interface converter.

[0031] During the in-field measurement of the functions and performance of the dynamic base alignment interface conversion device, click the automatic test option, and the dynamic base alignment ground inspection equipment will automatically simulate the generation of navigation alignment information and moving heading information, send it to the dynamic base alignment interface conversion device, and receive the converted information. Through analysis and comparison, the function and performance inspection of the dynamic base alignment interface conversion device is completed. You can also manually enter the test item parameters in the manual test interface, and the test software will automatically send them according to the communication requirements. During the inspection process, the integrated instrument display and bus monitor can display the heading and attitude data, standard value range and other information in real time. During the in-field inspection process, the error between the simulated sending and the returned received information is automatically compared, and the test signal items that fail the test are highlighted in red.

[0032] For example, the circuit diagram of the power module is as follows: Figure 2 As shown, a fuse and power switch are installed between the power module and the industrial computer. These fuses and power switch ensure safe power supply to the device. The power module primarily powers the dynamic base alignment inspection equipment. Based on practical field conditions and for ease of operation and use, the dynamic base alignment inspection equipment uses an AC220×(1±10%)V, 50-60Hz power supply. A filter socket is used to filter the input AC220×(1±10%)V, 50-60Hz power supply. Power is supplied to the device through a 2A fuse and a main switch. The main power switch uses a T-22 double-pole double-throw switch with a contact current rating of 15A and a rated voltage of 250VAC, meeting control requirements. The device under test operates with a 28V power supply, consuming no more than 1A, using an RSP-150-27 switching power supply. This power supply has an input voltage range of AC85-264V, an output voltage range of 27V (adjustable: -5% to +10%), a regulated output of DC28V, and a rated output current of 5.4A. It features overload, overvoltage, and overtemperature protection, meeting the DC28V power supply requirements and current consumption testing of equipment. The AC variable-frequency power supply utilizes a ZY20-28S36 power supply with an input voltage of 20-32V, an output voltage of AC (36±3.6)V, (400±40)Hz, and a rated output power of 20W. It also features overload, overvoltage, and overtemperature protection, meeting the signal requirements of the resolver interface and 36V / 400Hz excitation input. Both the 28V DC output and the 36V / 400Hz AC output can be controlled on and off by an industrial computer. The power supply can be shut down after testing to ensure electrical safety when replacing the device under test. A 1A fuse is included on the 28V output to protect the device under test. The device has a built-in voltage and current detection module, and the external panel is equipped with a voltmeter and ammeter. The system and operator of the device can monitor the current and voltage changes in real time, detect and isolate faults in time, and enhance electrical safety.

[0033] For example, the circuit diagram of the angle generator is as follows: Figure 3 As shown, the angle generator uses the AD2S82 series chip, which receives the resolver signal output from the dynamic base alignment interface converter and converts it into a digital signal that can be easily controlled and collected by the industrial computer test software, thus receiving and converting the moving heading information. The chip's signal input frequency is 50Hz to 20kHz, with a conversion accuracy of ±2°. The user can set the resolution to 10 to 16 bits, and peripheral circuit configuration can meet testing requirements. After being transmitted to the industrial computer via the serial port, the test software analyzes and processes the signal.

[0034] For example, the alignment parameter simulator effect diagram is as follows: Figure 4 As shown, the alignment parameter simulator is provided with a bus card, which adopts ARINC429. The alignment parameter simulator simulates and generates dynamic base alignment information, which is sent to the dynamic base alignment interface conversion device through the bus card and displayed on the integrated instrument display in the form of a dynamic image.

[0035] Specifically, the bus monitor effect diagram is as follows: Figure 6 As shown, the described dynamic base is aligned with the ground inspection equipment, and the bus monitor monitors the information sent and received on the ARINC429 bus card and the serial port information returned by the angle generator, and displays them in real time on the integrated instrument display, thereby realizing the bus monitoring function, facilitating the monitoring of bus communication status and normal communication function, and evaluating the accuracy and effectiveness of the signal conversion of the device under test.

[0036] Specifically, the physical picture of the industrial computer is as follows Figure 7 As shown, the industrial computer primarily implements data exchange between modules and the implementation of the test software. Users enter test parameters through a manual test interface or automatically through an automatic test interface. The test software controls the alignment parameter simulator to simulate the output of navigation alignment signals and heading signals. The data converted by the device under test is read back through the bus card's receive channel and the angle generator's serial port channel for comparative analysis. Transmitted and received information is displayed on the integrated instrument display, highlighting the effectiveness of signal conversion and enabling human-computer interaction.

[0037] Specifically, the integrated instrument display effect diagram is as follows Figure 5 As shown, the integrated instrument display adopts APC7170-CT industrial display with touch function. After the equipment is powered on, the tester can enter the corresponding test interface by operating the touch screen or keyboard and mouse to start the test process. Under the control of the industrial computer test software, the output of various parameters such as attitude, heading, speed, etc. is simulated and displayed graphically. It can also display bus monitor data to realize the human-computer interaction process.

[0038] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or techniques or knowledge in the relevant fields. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. A device for checking a movable base aligned with the ground, characterized in that: The invention comprises a dynamic base internal field detection device, which is connected to a test object; the dynamic base internal field detection device comprises a power supply module, an angle generator, an alignment parameter simulator, a comprehensive instrument display, a bus monitor, an industrial computer, and a human-machine interface; the output end of the power supply module is connected to the input end of the industrial computer, the output end of the angle generator is connected to the input end of the industrial computer, the input end of the angle generator is connected to the test object, the alignment parameter simulator is connected to the industrial computer and the test object respectively; the bus monitor is connected to the industrial computer and the test object respectively, the instrument display is connected to the industrial computer, and the human-machine interface is connected to the industrial computer; The angle generator is used to convert the test object into a digital signal and send it to the industrial computer through the serial port for processing; The alignment parameter simulator is used to simulate and generate the alignment information of the dynamic base, and display it in the form of an image on the integrated instrument display; the bus monitor is used to monitor the test object data and display it in real time on the integrated instrument display; The industrial computer is used to realize data interaction and software analysis, and display the analysis results on the integrated instrument display; It also includes a dynamic base alignment external field detection device, which is connected to the test object and is used for the device to perform detection in the external field.

2. The device for checking the alignment of a movable base with the ground according to claim 1, characterized in that: A fuse and a power switch are provided between the power module and the industrial computer, and the power module realizes safe power supply to the device through the fuse and the power switch.

3. The device for checking the alignment of a movable base with the ground according to claim 1, characterized in that: The angle generator uses an AD2S82 chip to receive the rotary transformer signal output by the test object and convert it into a digital signal suitable for an industrial computer.

4. The device for checking the alignment of a movable base with the ground according to claim 1, characterized in that: The alignment parameter simulator is provided with a bus card, and the alignment parameter simulator sends the dynamic base alignment information generated by simulation to the test object via the bus card.

5. The device for checking the alignment of a movable base with the ground according to claim 4, characterized in that: The bus monitor monitors the communication data of the bus card and the serial port, and displays the data on the integrated instrument display in real time.

6. The device for checking the alignment of a movable base with the ground according to claim 4, characterized in that: The industrial computer reads back the data converted by the test object through the receiving channel of the bus card and the serial port channel of the angle generator.

7. The device for checking the alignment of a movable base with the ground according to claim 1, characterized in that: The integrated instrument display adopts an APC7170-CT industrial display for displaying output images of simulated attitude, heading and speed and bus monitor data to realize human-computer interaction.

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