RU2820263C1 - Control and verification system for checking radio communication and radio navigation equipment - Google Patents

Abstract

FIELD: measurement.

SUBSTANCE: invention relates to automated test equipment of electrical parameters of radio communication and radio navigation equipment. Complex for checking radio communication and radio navigation equipment consists of the following modules: industrial computer, uninterrupted power supply (UPS), 115 V 400 Hz power supply, measuring unit, DC power supply, USB concentrator, spectrum analyser, attenuator, oscilloscope, power meter, frequency standard, high-frequency signal generator, special shape signal generator, USB – RS-232 converter, universal voltmeter, switching device, simulator of reflected signals of radio altimeters, switching unit with voice annunciator equipment, switching unit with onboard tape recorders, unit for interfacing with intercommunication devices, unit of intercommunication devices loads, power switching unit with radio communication equipment, interfacing unit with radio communication equipment.

EFFECT: design of a device for checking parameters of on-board tape recorders, warning and internal communication equipment, radio communication equipment and radio altimeters with the possibility of simulating signals of radio communication radio navigation equipment and radio altimeters.

1 cl, 1 dwg

Description

The claimed solution relates to automated testing equipment and can be used to control and measure the electrical parameters of radio communications and radio navigation equipment, which, in particular, includes on-board tape recorders, warning and intercom equipment, radio communications equipment, radio altimeters intended for installation on board aircraft. The inventive solution can be used when conducting incoming inspection and performance monitoring during maintenance and repair of radio-electronic equipment.

Currently, maintenance and testing of the parameters of aviation radio communications and radio navigation equipment is carried out using a control and testing complex for checking radio-electronic equipment (RF patent No. 117760, 2011). This control and testing complex, containing an RF signal source and channels for measuring controlled parameters, also contains a personal computer connected through a control module to a supply voltage unit, to an RF signal source made in the form of a software-controlled high-frequency signal generator, to a unit for measuring radio altimeter parameters , with a measuring unit and with switches through which the monitored object is connected to a measuring unit containing a power source for measuring modules, a DC and AC voltmeter, a frequency meter and a low-frequency generator. The disadvantage of the known testing complex is the limited list of test signals with specified characteristics, as well as insufficient capabilities for measuring the required signals, and therefore it does not ensure the performance monitoring of the required range of avionics equipment. The hardware does not allow expanding the functionality of the complex without making significant changes to the design. This solution was chosen as a prototype.

The technical problem solved by the claimed invention is the expansion of the functionality of the control and testing complex.

The technical problem is solved due to the fact that the control and testing complex for testing radio-electronic equipment contains an industrial computer, an uninterruptible power supply, a 115 V 400 Hz power supply, a measuring unit, a DC power supply, a high-frequency signal generator, a switching unit with voice alarm equipment, switching unit with on-board tape recorders, additionally contains a USB hub, spectrum analyzer, attenuator, oscilloscope, power meter, frequency standard, special form signal generator, USB - RS-232 converter, universal voltmeter, switching device, simulator of reflected signals from radio altimeters, interface unit with intercoms, a load block for intercoms, a power switching unit with radio communications equipment, an interface unit with radio communications equipment, while the input-output of the computer is connected to the input-outputs of the measuring unit, DC power supply, spectrum analyzer, switching device, switching unit with equipment voice alarm, switching unit with on-board tape recorders, and via a USB hub and USB - RS-232 converter with inputs and outputs of an oscilloscope, power meter, high-frequency signal generator, special-shaped signal generator, universal voltmeter, simulator of reflected signals from radio altimeters, uninterruptible power supply output connected to an industrial computer and a measuring unit, the output of the DC power supply is connected to the input of the switching device, through which the switching and interface units with the control object are connected, the output of the 115 V 400 Hz power supply is connected to the input of the measuring unit and through it and through the switching device with control object, the oscilloscope input is connected to the outputs of the control objects, the high-frequency inputs of the spectrum analyzer and power meter are connected to the outputs of the control objects through an attenuator, the high-frequency outputs of the high-frequency signal generator and the special-shaped signal generator are connected to the inputs of the control objects through an attenuator, the input of the universal voltmeter is via a switching device and the switching and interface blocks are connected to the outputs of the control objects, the inputs and outputs of the measuring block are connected to the inputs and outputs of the control objects through switching blocks with voice warning equipment and on-board tape recorders, the frequency standard output is connected to the inputs of a high-frequency signal generator, a special-shaped signal generator and spectrum analyzer, and the inputs and outputs of the simulator of reflected signals from radio altimeters are connected to the inputs and outputs of monitoring objects.

The technical result is aimed at creating a device for checking the parameters of on-board tape recorders, warning and intercom equipment, radio communication equipment and radio altimeters with the ability to simulate signals from radio communication radio navigation equipment and radio altimeters and is achieved due to the fact that the complex consists of modules that are software-controlled electronic devices . The principle of operation of the complex is based on the formation of output test signals (voltages, frequencies, etc.), simulating the operation of test equipment used to test products by the manufacturer and specified in the relevant documentation (TO, OM, etc.), and measuring output signals with the built-in measuring equipment of the complex.

The technical means of the complex operate under the control of system and application software installed on a PC, as well as in IOS. The software of the complex is intended for:

- selection of operating modes of the complex;

- providing a convenient interface to the user for managing inspections and displaying inspection results;

- maintaining a database of inspections;

- generating reports based on the results of inspections and printing them. The claimed solution is illustrated by a drawing, which shows a block diagram of the device, on which the positions indicate: 1 - uninterruptible power supply (UPS), 2 - industrial computer (PC), 3 - power supply 115 V 400 Hz, 4 - measuring unit, 5 - DC power supply, 6 - USB hub, 7

- spectrum analyzer, 8 - attenuator, 9 - oscilloscope, 10 - power meter, 11

- frequency standard, 12 - high-frequency signal generator, 13 - special form signal generator, 14 - USB - RS-232 converter, 15 - universal voltmeter, 16 - switching device, 17 - simulator of reflected radio altimeter signals, 18 - switching unit with speech equipment notifications, 19 - switching unit with on-board tape recorders, 20 - interfacing unit with intercoms, 21 - load unit for intercoms, 22 - power switching unit with radio communication equipment, 23 - interfacing unit with radio communication equipment. Objects of control: 24 - voice warning equipment, 25 - on-board tape recorders and intercoms, 26 - radio communication equipment, 27 - radio altimeters.

The control and testing complex for testing radio-electronic equipment (hereinafter referred to as the complex) contains an industrial computer 2 connected to a measuring unit 4, a DC power supply 5, a USB hub 6, a spectrum analyzer 7, a switching device 15, switching units 16 and control objects. The general power supply of the complex is provided from an industrial power supply network, which is supplied to power supplies 115 V 400 Hz 3 and DC 5, as well as UPS 2, through which an industrial computer 2 and a measuring unit 4 are connected to the power supply network. DC power supply 5 through the device switching 15 is connected to control objects. The control objects are powered with a voltage of 115 V 400 Hz by a power supply 3 through a measuring unit 4 and a switching device 15. A high-frequency signal generator 11, a special form signal generator 12 and a simulator of reflected signals from radio altimeters 17 through a USB - RS-232 converter 13, as well as an oscilloscope 8 , power meter 9, universal voltmeter 14 are connected to a USB hub 6 and thus communicate with an industrial computer 2. The frequency standard 10 is connected to a high-frequency signal generator 11, a special form signal generator 12 and a spectrum analyzer 7.

Control objects, depending on the type, can be connected through switching and interface blocks 18 - 23 to the measuring block 4 and to the industrial computer 2, as well as to the switching device 16. Measuring equipment is also connected to the control objects: an oscilloscope 9, as well as an analyzer through an attenuator 8 spectrum 7, power meter 10, high-frequency signal generator 12, special form signal generator 13.

Industrial computer 2 is designed to control all units of the complex, display the progress of the inspection, as well as collect, process and store inspection results.

AC power supply 3 is designed to provide the equipment under test with a single-phase AC voltage of 115 V at a frequency of 400 Hz.

The DC power supply 5 is a software-controlled device and is designed to provide the equipment under test and the switching device 16 with a voltage from 1 to 30 V and a current of up to 25 A, as well as to measure the voltage and DC current of the DC power supply network.

Mains power 220 V 50 Hz is supplied to power supplies 115 V 400 Hz 3 and DC 5, as well as to UPS 2, through which the industrial computer 2 and measuring unit 4 are connected to the power supply network.

Measuring unit 4 is designed to convert signals and provide measurements of parameters of monitored objects and implements the following functions:

- conversion of AC voltage 115 V with a frequency of 400 Hz into a range of AC voltages at level 5; 6.3; 36 V and frequency 400 Hz;

- control and measurement of DC and AC voltage and current values;

- measurement of alternating current frequency from 50 Hz to 150 kHz;

- generation of constant voltage, sinusoidal HF and LF signals. USB hub 6 is designed for connecting multiple measuring instruments

devices with a USB interface to a PC port.

Spectrum analyzer 7 provides measurement of the parameters of the spectrum of RF signals, and oscilloscope 9 provides study of the shape and measurement of amplitude and time parameters of electrical signals coming from test objects.

Attenuator 8 is a passive device and provides attenuation to an acceptable power level of electromagnetic RF signals coming from control objects.

Power meter 10 is designed for measuring microwave power of continuous and modulated electromagnetic oscillations generated by control objects.

The frequency standard 11 produces a high stability reference frequency signal used by the spectrum analyzer 7, the high frequency signal generator 12 and the special waveform generator 13.

The high-frequency signal generator 12 is designed to reproduce an unmodulated harmonic RF signal and an RF signal with various types of modulation.

The special waveform generator 13 provides the generation of sinusoidal and complex waveforms with the ability to generate a pulse signal.

The USB - RS-232 14 converter allows you to connect several measuring devices operating via the RS-232, RS-422 or RS-485 interface to a PC via a USB port.

Universal voltmeter 15 provides measurement of direct current voltage, effective value of alternating current voltage, direct current strength, effective value of alternating current strength, electrical resistance to direct current, as well as measurement of alternating current frequency.

Switching device 16 is designed to connect control objects to the measuring resources of the complex, supply power and provide control of control objects.

The simulator of reflected radio altimeter signals (IOS) 17 is designed to measure the boundary frequencies of a modulated microwave signal, forming attenuation and delay of signals.

Switching and interface units 18-23 are designed to connect control objects to the measuring equipment of the complex, switch power circuits and information signals, provide matching and equivalent loads for input and output signals, respectively, when performing checks of control objects.

The complex is designed for monitoring and measuring the electrical parameters of the following avionics equipment of helicopters such as Mi-8, Mi 8MTV (Mi-8MTV-5-1), Mi-17 (Mi-8MT), Mi-171 (Mi-8AMT, Mi-8AMTSh ), Mi-172, Mi-24, Mi-26, Mi-28N, Mi-35M, Ka-27, Ka-28, Ka-29, Ka 31R, Ka-52, An-2, Il-76 aircraft (M, MD):

- onboard transmitting and receiving radios of the MB range “Baklan-20 mod.1”, “Baklan-20 mod.2”, “Baklan-20 mod. 3 (20D)", "Orlan-85ST", "Prima-MV";

- onboard KB transmitting radio stations “Yadro-1A”, “Yadro-IAl”, “Yadro-1G”, “Yadro-1G1”, “Yadro-IE”, “Yadro-Sh”, “Yadro-1I1”, “Yadro-N-G1”, “Yadro-P-Zh1”, “Yadro-P-L1”, “Mikron-ZV-06”, “Mikron-ZV-07”, “R-864”, “Prima-KV” ";

- onboard transmitting and receiving radio stations of the UHF and MB ranges “R-862M”, “R-863”, “R-999”, “Prima-UHF”;

- onboard transmitting and receiving VHF radio stations “R-828”, “R-860”;

- on-board small-sized VHF radio receiver “R-852”; - emergency rescue radio station of the KB range “R-861”, “R-861M”, “R-861M1”;

- radio altimeters “RV-2”, “RV-UM”, “RV-3”, “RV-ZM”, “RV-5M”, “RV-5RM”, “RV-5MD”, “RV-5MD1”, "A-036", "A-037", "A-052";

- on-board voice warning equipment “Almaz-UP”;

- Almaz-UPM products;

- voice communication equipment “RI-65-B”;

- on-board tape recorders “MS-61”, “MS-61B”, “P-503B”, “P-503BS”;

- voice information recorder “P-507M”;

- aircraft intercoms “SPU-7”, “SPU-8”;

- aircraft loudspeaker device "SGU-15".

The control and testing complex has several operating modes, including:

1) automated verification mode;

2) mode of built-in monitoring of the complex’s performance (autodiagnostics);

3) mode of metrological verification of measurement channels.

Before testing the equipment under test, its units must be placed on the table and connected using appropriate harnesses to electrical panels located on the worker’s table.

When connecting units of the equipment under test, control is carried out via a PC. The technical means of the complex operate under the control of system and application software installed on a PC, as well as in IOS.

After connecting the equipment under test, the power source is turned on, then the supply voltages are connected in the required sequence, and the currently required operating mode of the equipment under test is turned on.

The measured parameters are compared with reference values. If the deviations of the measured parameters from the reference ones are within the established tolerances, the test object is considered suitable. If the measured parameters deviate beyond the tolerance limits, the test object is considered faulty. All signals measured as a result of the test are entered into a computer database, and on their basis a test card for the corresponding tested object is compiled.

Example of work

Enable the complex by following these steps:

- set the “220 V 50 Hz” switch on the power panel to position “I”;

- open the front door of the system cabinet and control the automatic switching on of the uninterruptible power supply (UPS);

- make sure that the “POWER” switches of the DC power supplies are in the “I” position;

- install the power switch for the control object (OK) “S1” on the switch panel of the system cabinet and the power switch ~220 V 50 Hz on the panel of the electrical interface device;

- turn on the industrial computer;

- turn on the power supply 115 V 400 Hz;

at the request of the operating system (OS), press the key combination "CTRL"+"ALT"+"DEL", enter your ID and password in the appropriate fields of the personal data entry window, and click the "OK" button;

- launch the application by double-clicking the left mouse button on the “KPK-1” shortcut located on the desktop. When the main form of the application is displayed, the complex is ready for use.

The application's graphical interface is based on the Windows OS interface. To learn how to work with the OS, use its help system.

The application is controlled using controls (items) on the main menu panel. The selection is made by hovering the cursor over the desired item and single-clicking the left mouse button (with precise pointing, the brightness/color of the item changes).

To perform a new check, from the main menu, go to the corresponding “NEW CHECK” tab, then the item containing the name OK. An empty window will open.

Fill in the appropriate fields in the “Session Data” area:

- type of aircraft (can be selected from the data available in the directory);

- aircraft identification mark;

- aircraft serial number;

- performer (can be selected from the data available in the directory);

- controller (can be selected from the data available in the directory);

- check date (by default - the current system date);

- enter additional information about the verification in the "NOTE" field (in free form, if necessary).

In the “SETTINGS” window, fill in the data on the type and composition of the equipment, as well as serial numbers and operating hours.

After filling in all the fields, click the “SAVE IN DB” button, after which the “Checked parameters” tab becomes available.

Switch to the “Checked parameters” tab by clicking on the “Checked parameters” tab shortcut.

This will open the interface of the check form in automated mode, the main element of which is a table with a list of checks provided for this OK.

To perform the list of provided checks in an automated mode, you must activate the check groups to be performed in the field with the names of checks by using the mouse to check the box in the appropriate frame.

To start the verification process, click the “START” button. Power OK is connected automatically. The current status of the scan is reflected in the indicator and in the “Check progress” field.

During the verification process, it may be necessary to perform manual actions (operations with toggle switches, switches, reading information from indicators, entering data received from OK, etc.). Instructions for performing these actions are displayed in pop-up windows. In this case, the operator should:

- perform the actions prescribed in the displayed message;

- confirm the execution of actions with the corresponding controls (buttons “OK”, “READY”, etc.).

As the test is completed, the result of its implementation is entered into the “Value” column of the table with the list of checks and an assessment is given for compliance with the scientific and technical standards. If the measurement assessment is positive, the line with the result is highlighted in green, and if the measurement is negative, it is highlighted in red.

After completing the check, tabular data will be entered into the database with the ability to print it in a reporting form.

The current status of the scan is reflected in the indicator and in the “Check progress” field. When the scan is complete, the scan progress bar will display the message “All checks completed.”

You can stop the testing process at any stage using the “STOP” button.

After completing the selected checks, you must go to the “Report” tab. This will open a window with a completed reporting card form. To control viewing and printing of reports, use the control buttons located at the top of the tab.

Next, you should finish working with the application by selecting the button to close the application window (the cross button in the upper right corner of the window). Disconnect the harnesses and cables from the OK and complex connectors.

To disable the complex, perform the following steps:

- set the power switch ~220 V 50 Hz on the panel of the electrical interface device to position “0”;

- close all application windows, exit to the Windows “Desktop”;

- click the “Start” button in the lower left corner of the Windows “Desktop”;

- select the “Shutdown” item in the menu that opens;

- wait for the OS to complete and the PC to turn off;

- set the power switch OK “S1” on the switchboard of the cabinet to position “0”;

- open the front door of the system cabinet, press and hold the on/off button on the uninterruptible power supply panel;

- set the “~220 V 50 Hz” switch on the left side panel of the system cabinet to position “0”.

Claims (1)

A control and testing complex for testing radio-electronic equipment, containing an industrial computer, an uninterruptible power supply, a 115 V 400 Hz power supply, a measuring unit, a DC power supply, a high-frequency signal generator, a switching unit with voice warning equipment, a switching unit with on-board tape recorders, different in that it additionally contains a USB hub, a spectrum analyzer, an attenuator, an oscilloscope, a power meter, a frequency standard, a special form signal generator, a USB - RS-232 converter, a universal voltmeter, a switching device, a simulator of reflected signals from radio altimeters, an interface unit with intercoms , intercom load block, power switching unit with radio communication equipment, interface unit with radio communication equipment, while the input-output of the computer is connected to the input-output of the measuring unit, DC power supply, spectrum analyzer, switching device, switching unit with voice alarm equipment , a switching unit with on-board tape recorders, and through a USB hub and a USB - RS-232 converter with inputs and outputs of an oscilloscope, a power meter, a high-frequency signal generator, a special-shaped signal generator, a universal voltmeter, a simulator of reflected signals from radio altimeters, the output of an uninterruptible power supply is connected to to an industrial computer and a measuring unit, the output of the DC power supply is connected to the input of the switching device, through which the switching and interfacing units with the control object are connected, the output of the 115 V 400 Hz power supply is connected to the input of the measuring unit and through it and through the switching device with the control object , the oscilloscope input is connected to the outputs of the control objects, the high-frequency inputs of the spectrum analyzer and the power meter are connected through the attenuator to the outputs of the control objects, the high-frequency outputs of the high-frequency signal generator and the special-shaped signal generator are connected through the attenuator to the inputs of the control objects, the input of the universal voltmeter is through a switching device and blocks switching and interfacing are connected to the outputs of the control objects, the inputs and outputs of the measuring block are connected to the inputs and outputs of the control objects through switching blocks with voice alarm equipment and on-board tape recorders, the output of the frequency standard is connected to the inputs of the high-frequency signal generator, special-shaped signal generator and spectrum analyzer , and the inputs and outputs of the simulator of reflected radio altimeter signals are connected to the inputs and outputs of the monitoring objects.

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