RU2792292C1 - Control and verification complex for checking radio-electronic equipment - Google Patents

Abstract

FIELD: automated control and testing equipment.

SUBSTANCE: invention can be used to control and measure the electrical parameters of electronic equipment, in particular navigational landing systems, equipment for short and long-range radio systems intended for installation on Il-76 aircraft and similar aircrafts. The control and verification complex for checking radio-electronic equipment contains an industrial computer with software, a measuring unit and power supplies. At the same time, the complex additionally contains an oscilloscope switching unit, a transformer unit, a switching device, a microwave unit, a frequency standard unit and a unit for measuring the parameters of radio navigation signals, consisting of a modem and a programmable attenuator. At the same time, the complex is made with the possibility of connecting control objects to the corresponding inputs and outputs of the switching device and the microwave unit.

EFFECT: expansion of the functionality of the control and verification complex for checking radio-electronic equipment.

1 cl, 1 dwg

Description

The claimed solution relates to measuring equipment, namely to devices for monitoring and measuring the parameters of aircraft radio-electronic equipment, in particular, the Kurs MP-2 navigation landing system, the Kurs MP-70 navigation landing system, the RSBN-7S short-range radio engineering system, the A- 711 (equipment of a radio-technical system for long-range navigation).

Known for "Control and verification equipment for inertial navigation systems", (RF patent No. 47096, 2005, IPC G01D 21/00, copyright holder Open Joint Stock Company "Ramenskoye Instrument Design Bureau"), containing a multiplex signal interface adapter module, a serial interface adapter module , an analog-to-code converter board and a control unit. The main functional unit of the equipment is the processor board that controls the operation of other incoming devices. The disadvantages of the known device are the relatively low rate of information exchange and insufficient resources.

The closest in technical essence and the achieved result, taken as a prototype, is the "Control and verification complex for checking radio-electronic equipment", RF patent No. measuring and power supplies. The personal computer is designed to control all units of the complex, display the test progress, as well as to collect, process, store information about the equipment being tested. The personal computer is connected to the generator through a control module, through which the frequency and amplitude of the high-frequency signal are programmatically changed, and, if necessary, modulated in amplitude from the built-in generator 10 LF (1000 Hz). The complex provides the functions of checking devices in accordance with the current regulatory documentation, collecting, processing, accumulating and storing the results of checks, displaying the results of checks, maintaining a database for each tested device. The disadvantage of the known control and verification complex is the inability to generate the necessary list of test signals with specified characteristics and to ensure the measurement of the required signals, including the inability to generate complex radio signals VOR and CIP (chaotic impulse noise).

The technical problem to be eliminated by the claimed solution is the expansion of the functionality of the control and verification complex for checking radio-electronic equipment.

The problem posed is solved due to the fact that the control and verification complex for checking radio electronic equipment containing an industrial computer with software, a measuring unit and power supplies, additionally contains an oscilloscope switching unit, a transformer unit, a switching device, a microwave unit, a frequency standard unit and a meter unit parameters of radio navigation signals (IPRNS unit), consisting of a modem and a programmable attenuator, while the industrial computer is connected to the modem of the IPRNS unit, the measuring unit, the oscilloscope switching unit, the microwave unit, the switching device and with power supplies, and the modem of the IPRNS unit is connected through the programmable attenuator to the microwave unit, connected by output to the measuring unit, and by inputs connected to the frequency standard unit and the switching unit of the oscilloscope, which is connected to the switching device through the inputs and outputs. And also due to the fact that the power sources through the transformer unit and the switching device are connected to the control object, which is connected to the switching device and through the microwave unit to the oscilloscope switching unit and the modem, which is part of the IPRNS unit.

The technical result is aimed at creating a control and verification complex for checking radio-electronic equipment, namely, for checking the parameters of navigation landing systems, equipment for short-range and long-range radio systems with the ability to reproduce signals from radio systems for navigation and landing. The technical result is achieved due to the fact that the control and verification complex is made containing an industrial computer, power supplies, an oscilloscope switching unit, a transformer unit, a switching device, a microwave unit, a frequency standard unit and a unit for measuring the parameters of radio navigation signals. The main unit of the complex is the IPRNS unit, which is built on the principle of software-defined radio systems and is a transceiver that generates and processes RF and microwave radio signals. The IPRNS block consists of a programmable attenuator, which is designed to adjust the level of the output microwave signal of the IPRNS and a modem that performs the task of generating a radio signal at a carrier frequency, as well as the task of receiving, pre-filtering and converting the frequency of radio signals of the tested on-board equipment to an intermediate frequency and the task of forming modulating signals, as well as the tasks of processing and measuring the parameters of radio signals of on-board equipment at an intermediate frequency. To implement the functions of the IPRNS block, a library has been developed that provides information exchange, as well as technological software that implements the functionality of this library.

The claimed solution is a control and verification complex that diagnoses and checks the electronic equipment of the aircraft using software, which reduces the influence of the human factor on the accuracy of measurements and reduces time. The control and verification complex is designed for use in organizations and enterprises engaged in the operation and repair of aircraft and solves the following tasks:

- testing, diagnostics, control and measurement of parameters of radio-electronic equipment when performing maintenance and checking for compliance with scientific and technological progress in the laboratory in accordance with technological instructions for its verification, technical operation manuals and maintenance regulations;

- collection, processing and storage of test results, diagnostics, control and measurement of parameters of the tested equipment;

- automated control of the process of testing, diagnostics, control and measurement of the parameters of the equipment under test;

- issuance and storage of test results, diagnostics, control and measurement of parameters of the equipment under test.

The claimed solution is illustrated by graphic materials, where:

In FIG. 1 shows a block diagram of the device.

The claimed solution is illustrated by a drawing, which shows a block diagram of the device, on which the positions indicate: 1 - industrial computer, 2 - uninterruptible power supply (UPS), 3 - power supplies, 4 - transformer unit, 5 - switching device, 6 - microwave unit , 7 - oscilloscope switching unit (BKO), 8 - measuring unit, 9 - frequency standard unit, 10 - radio navigation signal parameters measuring unit (hereinafter referred to as IPRNS), 11 - modem, 12 - programmable attenuator.

The control and verification complex (hereinafter referred to as the complex) for testing radio-electronic equipment, contains an industrial computer 1 connected to a modem 11 from the IPRNS 10, a measuring unit 8, BKO 7, a microwave unit 6, a switching device 5 and with power supplies 3. General power supply of the complex is carried out from an industrial power supply network, which is supplied to power sources 3 and UPS 2, through which an industrial computer 1 and a measuring unit 8 are connected to the power supply network. Power sources 3 are connected to the control objects through a transformer unit 4 and a switching device 5. The control objects are connected to the switching device 5 and through the microwave interface 6 to the BKO 7 and the modem 11, which is part of the IPRNS 10 unit. The measuring unit 8 is connected to the modem 11 from the IPRNS 10 unit. IPRNS 10 is connected to the microwave unit 6. The frequency standard unit 9 is connected to modem 11 from the IPRNS 10.

Industrial computer 1 is designed to control all units of the complex, display the progress of the check, as well as to collect, process and store the results of checks.

Power supplies 3 are two separate programmable power supplies and provide power to control objects with DC 27 V and AC 115 V 400 Hz.

The transformer block 4 converts the three-phase voltage 115 V 400 Hz from the AC power source into the three-phase voltage 36 V 400 Hz and supplies it to the control objects.

The 27 V DC power supply provides power to the control objects and the IPRNS 10 unit.

Mains power 220 V 50 Hz is supplied to power sources 3 and UPS 2, through which industrial computer 1 and measuring unit 2 are connected to the power network.

3 power supplies provide the following features:

- reproduction of DC voltage 27 V;

- reproduction of a three-phase voltage of alternating current 115 V with a frequency of 400 Hz;

- reproduction of a three-phase voltage of alternating current 36 V with a frequency of 400 Hz.

The main unit of the complex is IPRNS 10, which is built on the principle of software-defined radio systems and is a transceiver that generates and processes RF and microwave radio signals.

IPRNS 10 consists of:

- modem 11, which performs the task of generating a radio signal at a carrier frequency, as well as the task of receiving, pre-filtering and converting the frequency of radio signals of the tested on-board equipment to an intermediate frequency and the task of generating modulating signals, as well as the task of processing and measuring the parameters of radio signals of on-board equipment at an intermediate frequency;

- programmable attenuator 12, which is designed to adjust the level of the output microwave signal of the IPRNS.

To implement the functions of the IPRNS 10 block, a library has been developed that provides information exchange, as well as technological software that implements the functionality of this library.

IPRNS 10 generates HF signals necessary for checking objects of control and implements the following functions:

- reproduction of radio signals;

- measurement of the carrier frequency of the radio signal.

Measuring block 8 is designed to convert signals and provide measurements of the parameters of control objects and implements the following functions:

- reproduction of the gain of the input voltage;

- reproduction of video impulses of 2, 3, 4, 5 types;

- DC voltage measurement;

- measurement of alternating current voltage;

- measurement of direct current strength.

The measuring unit 8 and IPRNS 10 implement the function of reproducing type 1 video pulses.

The microwave unit 6 performs attenuation, branching, power measurement, detection of a radio signal and provides protection against the reverse power of the emitted signal, due to the mode of the control object.

The frequency standard block 9 generates a high stability reference frequency signal used in the IPRNS block 10.

Switching device 5 is intended for switching objects of control and implements the following functions:

- reproduction of alternating current voltage with a frequency of 400 Hz corresponding to the angle of rotation of the SKT sensor;

- measurements of parameters of rectangular pulses;

- DC voltage measurements;

- reproduction of the input impedance.

IPRNS 10 and the microwave unit 6 implement the function of measuring the pulse power of the radio signal.

BKO 8 is designed to connect the oscilloscope, which is part of it, to the objects of control and implements the function of measuring the amplitude and time parameters of electrical signals.

The complex is designed to control and measure parameters during incoming inspection, performance monitoring during maintenance and repair of the following equipment of Il-76 and similar aircraft:

- navigation landing system Kurs MP-2;

- navigation landing system Kurs MP-70;

- RSBN-7S product (RSBN equipment);

- A-711 equipment (RSDN equipment).

The control and verification complex has several modes of operation, including:

1) semi-automatic verification mode;

2) built-in control of the complex performance (self-diagnostics);

3) mode of metrological verification of measurement channels.

Before starting the test, the blocks of control objects are placed on the desktop and connected using the appropriate harnesses. When connecting blocks of control objects, control is carried out by means of an industrial computer. The supply voltages are connected and controlled by means of various devices and blocks.

After connecting the control object, the power sources are switched on programmatically, then the supply voltages are connected in the required sequence, and the currently required mode of operation of the test object is switched 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 control object is considered fit. If the measured parameters deviate beyond the tolerance limits, the control object is recognized as faulty. All the signals measured as a result of the check are entered into the computer database, and on their basis a check chart of the corresponding checked object is compiled.

The software of the complex is intended for:

- selection of operating modes of the complex;

- providing a user-friendly interface for managing inspections and displaying inspection results;

- maintaining a database of checks;

- formation of reports on the results of inspections and their printing.

An example of testing the pulse power of the SZD-PM transmitter of the RSBN-7S short-range navigation radio system

1. Turn on the complex, launch the application.

When the application is launched, a health check (built-in control) of the equipment from the complex is launched, after which a window with the result of monitoring the health of the complex equipment is displayed.

2. Connect the blocks of the RSBN-7S product to the complex in accordance with the diagram.

3. In the "New check" tab, select the "RSBN-7S" item, and a window will appear with the choice of the "RSBN-7S: SETTINGS" check mode.

4. From the drop-down list choose:

- test mode: "AUTOMATIC" for testing the RSBN 7S product in automatic mode (during the test, all controls of the RSBN-7S product are controlled by the software), or "MANUAL" for testing in manual mode (during the test, it will be necessary to manually set the modes on the controls of the product);

5. Fill in the fields in the "Check Data" tab and save in the database.

6. In the "Tested parameters" tab, select the test of the SZD-PM transmitter.

Before starting the test, it is necessary to warm up the RSBN-7S product for one minute; for this, after starting the test, a message pops up about the start of warming up.

7. Run the test. In this case, the power sources 3 form and through the transformer unit 4 and the switching device 5 supply the control object (transmitter SZD-PM) with DC and AC supply voltage.

8. Modem 11 from the radio navigation signal parameters measuring unit 10 generates pulses for triggering, which are amplified in the measuring unit 8 and through the oscilloscope switching unit 7 and through the switching device 5 are fed to the control object (transmitter SZD-PM).

9. The object of control (transmitter SZD-PM) generates a radio signal that enters the microwave unit 6. In the microwave unit 6, the signal is normalized, its average power is measured, the video signal is detected and the signal is branched to the modem 11 and to the switching unit of the oscilloscope 7. In the unit switching oscilloscope 7 is the measurement of the pulse duration of the video signal. Modem 11 measures the number of radio signal pulses. The data on the measured average power, the video pulse duration and the number of pulses are transmitted to the industrial computer 1, where the pulse power is calculated according to the obtained parameters.

10. The result of the pulse power test is displayed in the "Value" column. If the obtained values are within the allowable range of the norm of the technical parameter (NTP), then this line will be colored green, if outside the allowable range of the NTP - red.

Claims (1)

A control and verification complex for testing radio-electronic equipment, containing an industrial computer with software for controlling the components of the complex, as well as processing and storing data obtained as a result of testing, a measuring unit and power supplies, characterized in that it additionally contains an oscilloscope switching unit, a unit transformer, switching device, microwave unit, frequency standard unit and a radio navigation signal parameter meter unit (IPRNS unit), consisting of a modem and a programmable attenuator, while the industrial computer is connected to the modem of the IPRNS unit, a measuring unit, an oscilloscope switching unit, a microwave unit, a device switching and with power sources, and the modem of the IPRNS unit through a programmable attenuator is connected to the microwave unit, connected to the measuring unit at the output, and connected to the frequency standard unit and the oscilloscope switching unit through the inputs-outputs, which is connected to the device switching device, the output of the measuring unit is connected to the input of the switching unit of the oscilloscope, and the input-output of the measuring unit is connected to the input-output of the switching device, and the UPS is connected by its outputs to the input of the industrial computer and the input of the measuring unit, the power sources are connected by their outputs to the input of the switching unit oscilloscope, modem input, switching device input, input of the microwave unit connected by its output to the modem input, and the input of the oscilloscope switching unit, and the transformer unit is connected by its output to the input of the switching device, and the complex is configured to connect control objects to the corresponding inputs-outputs switching device and microwave unit.

Images