RU2294056C1 - Computerized checkout and control equipment for energy and information interaction circuits of aircraft-power-unit system - Google Patents

Abstract

FIELD: equipment for serviceability check and control of multichannel communication systems including aircraft-engine ones.

SUBSTANCE: proposed equipment has personal computer, channel switching unit, circuit control unit incorporating central control unit, multichannel comparison unit, analog-to-digital converter, virtual standard, input channel controller, output signal shaper, multiplexer, normalizing unit, digital information output and input unit incorporating analog-to-digital converter, digital-to-analog converter, control-unit input channel controller, digital output signal shaper control unit, channel controller, signal output parameter control unit, output interface, and input interface.

EFFECT: enlarged functional capabilities of equipment.

1 cl, 1 dwg

Description

The proposed invention relates to the field of test equipment and can be used to test the health and regulation of multichannel communication systems, in particular an airplane-engine system.

Known, selected as the closest analogue, automated test equipment containing a personal computer, a channel switch and a circuit control unit containing a central control unit, a multi-channel comparison unit, a virtual standard, input channel controller, output signal shaper, multiplexer, normalization unit, which in turn, consists of a voltage meter and circuit meters (US Pat. RF No. 2250565, IPC N 04 V 3/46, publ. 04/20/2005, Bull. No. 11).

The disadvantages of this device is that it does not provide for the control of the issuance and reception of digital information to controlled objects.

The technical task of the proposed invention is to expand the functionality of the device.

The task is achieved by the fact that in an automated test equipment for checking and regulating the energy and information interaction circuits of the aircraft - power plant system containing a personal computer, a channel switch connected to it and a circuit control unit connected to the channel switch, the circuit monitoring unit comprises a central control unit connected to a channel switch, connected to a control unit, a multi-channel comparison unit connected to a control unit, and a plurality of With a virtual comparison unit, a virtual standard connected to the control unit controls the input channel controller, an output signal shaper connected to the control unit, and its outputs with the inputs of the controlled circuits, a multiplexer connected with its inputs to the outputs of the controlled circuits, and the outputs with inputs of the input channel controller, the unit normalization, consisting of a voltage meter and circuit meters, which are connected by their inputs to the outputs of the input channel controller, and outputs with inputs of a multi-channel unit with of equalization, a digital information issuing and receiving unit connected to the central control unit and controlled circuits, an analog-to-digital converter connected by its input to the input channel controller output and the output with the input of a multi-channel comparison unit, the digital information issuing and receiving unit consists of from the control unit connected to the central control unit, connected to the control unit of the output digital signal driver, the channel controller, the output parameter control unit and signals, a digital-to-analog converter, connected by its input to the output of the channel controller, and by the output from the input of the controlled circuit of the output interface, connected by its output to the input of the channel controller, and by an input with the input of the controlled circuit of the input interface, analog-to-digital converter, by its inputs connected to the outputs a digital-to-analog converter and a control unit for output parameters of the signals, and an output with a multi-channel comparison unit, in addition, a control unit for the output parameters of the signal catch and the DAC outputs are connected to its inputs controlled circuits.

The proposed invention is illustrated using the scheme shown in the drawing, where the following notation:

- PC 1,

- 2 channel switch,

- block 3 control circuits

- central control unit 4,

- multi-channel block 5 comparison

- virtual standard 6,

- controller 7 input channels,

- shaper 8 output signals,

- multiplexer 9,

- block 10 normalization,

- voltage meter 11 (ADC),

- meters 12 circuit (ADC),

- block 13 issuing and receiving digital information,

- control unit 14,

- shaper 15 output digital signals,

- 16 channel controller,

- input interface 17,

- output interface 18,

- block 19 control the output parameters of the signals,

- digital-to-analog converter (DAC) 20,

- analog-to-digital Converter (ADC) 21,

- analog-to-digital converter (ADC) 22.

Automated control and testing equipment for checking and regulating the energy and information interaction circuits of the airplane - power plant system works as follows.

Before checking the circuits of multichannel communication systems, the operator on the PC 1 selects a program that corresponds to a specific test mode. After starting the PC verification program 1, through the 2 channel switch, it transmits to the central control unit 3 a set of circuit verification commands to the central control unit 4. The Central control unit 4 sorts the received commands and transmits them to the virtual standard 6, the shaper 8 of the output signals and the control unit 14 of the block 13 for issuing and receiving digital information.

The virtual standard 6, on the basis of the received commands, generates and transmits to the multi-channel comparison unit 5 signals that in their parameters (for example, voltage) correspond to the signals of the monitored circuits in digital form during their normal functioning (reference signals).

The control unit 14 of the block 13 for issuing and receiving digital information on the basis of the commands received from the central control unit 4 generates and transmits to the driver 15 output digital signals commands for generating and issuing digital signals corresponding to this program. Shaper 15 output digital signals generates and transmits to the control unit 14 digital verification signals. The control unit 14 receives digital verification signals from the driver 15 of the output digital signals and transmits them to the central control unit 4, and he, in turn, transmits them to the multi-channel comparison unit 5.

In addition, the control unit 14 processes the set of commands received from the output digital signal generator 15 and distributes them between the 16 channel controller, the signal output parameter control unit and the DAC 20. The control unit 14 transmits commands for checking digital devices to the 16 channel controller, and on the block 19 control the output parameters of the signals and the DAC 20 - commands designed to test television devices.

The channel controller 16 sends the digital verification signals to the output interface 18, which generates the parameters of the output signals, for example, in accordance with GOST 18977-79 and transmits them to the monitored object (circuit). The input interface 17 receives digital signals from a monitored object (circuit), which generates the parameters of the input signals, for example, in accordance with GOST 18977-79 and transmits them to the controller 16 channels. The channel controller 16 transmits the signals received from the input interface 17 through the control unit 14 and the central control unit 4 to the multi-channel comparison unit 5, where they are compared with the signals received from the virtual standard 6 in real time.

Block 19 control the output parameters of the signals generates control television signals (for example, a synchronization signal, a sweep signal, etc.), and the DAC 20 converts the brightness signal from digital to analog. Then the output signals from the block 19 control the output parameters of the signals and the DAC 20 are fed to the monitored object and to the ADC 21. The ADC 21 converts these signals from analog to digital and transmits to the multi-channel block 5 comparison, where they are compared with the signals that must be generated the outputs of the block 19 control the output parameters of the signals and the DAC 20 in accordance with a given test program. The comparison results are transmitted at the command of the control unit 4 through the switch 2 channels on the PC 1. Thus, the PC 1 controls the correct operation of the unit 13 of the issuance and reception of digital information. In the case of an unacceptable deviation of the signals generated by the devices included in the digital information receiving and receiving unit 13 from the signals to be generated, the personal computer 1 transmits to the control unit 4 a command to terminate the digital information receiving and receiving unit 13.

Shaper 8 of the output signals generates at its outputs and transmits to the circuit of the controlled object pulse and analog signals, the magnitude of the voltage corresponding to the pulse and analog signals interacting with the circuits of the controlled object.

The multiplexer 9 receives at its inputs signals from controlled objects (circuits) and transmits them to the controller 7 input channels. The controller 7 of the input channels distributes and transmits the signals received from the multiplexer 9 to the inputs of the normalization unit 10 and the ADC 22 in accordance with the commands of the central control unit 4. In this case, signals received from monitored objects (circuits) are transmitted to normalization block 10, to which signals of the output driver 8 are supplied, and signals are transmitted to ADC 22 from monitored objects (circuits), to which signals of output parameters control block 19 were supplied Signals and DACs 20.

The normalization unit 10 and the ADC 22 convert the received pulse and analog signals into digital ones and transmit them to the multi-channel comparison unit 5, where they are compared with the signals coming from the virtual standard 6 in real time. The normalization block 10 includes a voltage meter 11, which determines and digitalizes the magnitude of the voltages coming from the circuits of the controlled object, and circuit meters 12, which determine whether there is an open circuit in one circuit or another, and converts this information into digital code. The results of processing the signals from the normalization unit 10 by comparing them with the signals from the virtual standard 6 are transmitted by the multi-channel comparison unit 5 to the PC 1 using the central control unit 4 via the channel switch 2. Based on the received signal processing results, the PC 1 makes a decision about the suitability of controlled objects (chains).

If the signals received from objects configured for regulation deviate from the reference ones, the operator or PC 1 decide to issue commands to the central control unit 4 for generating and issuing commands to the output driver 8 or control unit 14 for generating and issuing control commands to the control bodies objects. For example, a PC 1 instructs the shaper 8 of the output signals to issue a control signal to the electric drive of the exhaust fuel valve to change the initial position of the shutter. Then re-check the circuits of those units in which the regulation of the parameters. If the output parameters of the controlled circuits after regulation have accepted satisfactory values, then the controlled circuits of the units are considered suitable for further operation. If the output parameters of the controlled circuits after regulation have not accepted satisfactory values, then the controlled circuits of the units are considered unsuitable for further operation.

Thus, due to the fact that the unit for issuing and receiving digital information has been introduced into the automated control and testing equipment for checking and regulating the energy and information interaction circuits of the airplane – powerplant system, the device’s functionality is expanding.

Claims (1)

Automated test equipment for checking and regulating the energy and information interaction circuits of the airplane - power plant system containing a personal computer, a channel commutator connected to it, and a circuit control unit connected to a channel commutator, while the circuit control unit contains a central circuit connected to the channel commutator a control unit connected to a control unit a multi-channel comparison unit connected to a control unit and a multi-channel comparison unit virtual reference it is connected to the central control unit by the controller of the input channels, the driver of the output signals connected by its input to the central control unit, and by its outputs to the inputs of the controlled circuits, a multiplexer connected by its inputs to the outputs of the controlled circuits and the outputs from the inputs of the controller of the input channels, unit normalization, consisting of a voltage meter and circuit meters, which are connected by their inputs to the outputs of the input channel controller, and outputs with inputs of a multi-channel unit characterized in that it includes a block for issuing and receiving digital information connected to a central control unit and controlled circuits, an analog-to-digital converter connected by its input to the output of the input channel controller and by the output with the input of a multi-channel comparison unit, while issuing and receiving digital information consists of a control unit connected to a central control unit, connected to a control unit of a digital output signal shaper, a channel controller, a control unit I have the output parameters of the signals, the digital-to-analog converter connected to the output of the control unit by its input, and the output to the input of the controlled circuit, the analog-to-digital converter, its inputs connected to the outputs of the digital-to-analog converter and control unit, the output parameters of the signals, and the output to the multi-channel comparison unit, the output interface, its input connected to the controller of the channels, and the output with the input of the controlled circuit, the input interface, its input connected to the output of of the controlled circuit, and the output with the input of the channel controller, in addition, the control unit for the output parameters of the signals and the digital-to-analog converter are connected by their outputs to the inputs of the controlled circuits.