RU2406225C2 - Automated test and control equipment - Google Patents

Abstract

FIELD: information technology.

SUBSTANCE: equipment has a computer, a signal switch connected to not less than three monitoring units designed for connection to the monitored object. Each monitoring unit consists of a control unit, a multichannel comparator unit, a virtual standard, a load switch, a controlled load, a controlled power supply for output circuits, an output signal former, a switch and a standardisation unit.

EFFECT: broader functionalities of the device owing to possibility of measuring the level of the input power voltage in each channel and monitoring with nominal and maximum load, and high reliability of monitoring results.

2 cl, 1 dwg

Description

The invention relates to the field of automated control and verification equipment and can be used as equipment for verifying the operability of multichannel communication systems and control devices for aviation weapons (AAS) of aircraft (LA) and their components.

Known automated test equipment containing a multi-channel comparison unit, a virtual standard connected to it and a normalization unit connected by its inputs to the outputs of the monitored circuits a multiplexer, a switch connected by its inputs to the outputs of the multiplexer, and the outputs to the inputs of the normalization unit, output signal shaper connected by its outputs to the inputs of controlled circuits and the input of the multiplexer, a control unit connected to a multi-channel comparison unit, virtual th standard, a switch and the signal generator output connected to the channel switch control unit and a PC connected thereto, wherein the control unit, multi-unit comparisons, the virtual reference unit normalization multiplexer switch and generator output signals are combined in block control circuits; in addition, at least three circuit monitoring units are connected to the channel switch; the normalization unit is made in the form of a voltage meter and circuit meters, which are connected by their inputs to the outputs of the switch, and the outputs are connected to the inputs of a multi-channel comparison unit (RF patent No. 2250565, MPK7 Н04В 3/46, G05B 23/02, publ. 04/20/2005) .

The disadvantage of this device is that it does not control the influence of transients on the parameters of the monitored device in the dynamic check mode when the input voltage level in each channel (circuit) changes, and the output signal parameters are not fully monitored at nominal and maximum load when changing the voltage level of the output circuits of the controlled object, which reduces the reliability of the control results.

The technical result of the proposed invention is to expand the functionality of the device, increasing the reliability of the control results.

To achieve this result, an automated control and testing equipment containing a personal computer connected to the channel commutator and control units, each of which consists of a control unit connected to the channel commutator, a multi-channel comparison unit, a virtual standard, output signal conditioner, switch, unit normalization connected to the switch and a multi-channel comparison unit connected to the virtual standard, a controlled load, a load switch and a controlled an output circuit power supply connected to a control unit that is connected to a load switch and a controlled load connected to a switch and a load switch, and an output driver is connected to the switch.

The normalization block is made in the form of a voltage meter and a current meter, which are connected to the outputs of the switch with their inputs, and the outputs are connected to the inputs of the multi-channel comparison unit.

The inputs and outputs of the control object are connected respectively to the outputs of the output driver and the controlled power supply of the output circuits and the inputs of the switch loads.

Automated test equipment contains at least 3 control units.

The drawing shows a structural diagram of an automated test equipment.

Automated test equipment (AKPA) consists of a personal computer PC 1, a switch 2 channels, control units 3 to which the monitoring objects are connected. Each of the control units 3 consists of a control unit 4, a multi-channel comparison unit 5, a virtual standard 6, a switch 7, an output signal shaper 8, which is a device for converting the digital form of the input signals into analog, a load switch 9, which is a set of controlled power switches, normalization unit 10, consisting of a voltage meter 11 and a current meter 12, which are analog-to-digital converters, controlled load 13, representing a power electronic a potentiometer, as well as a controlled power source 14 of the output circuits. The AKPA uses standard measuring instruments operating in the remote control mode via the serial port.

Automated test equipment operates as follows.

Before conducting a health check of the control object at the automatic control system, the PC operator 1 selects the appropriate program for this control object.

After turning on the PC verification program 1, one of the control units 3 is connected via the 2 channel switch, in which the control unit 4 receives from the PC 1 the necessary set of commands and distributes the received commands to the addresses.

When the control signals from the control unit 4 arrive at the shaper 8, the received signals are galvanically decoupled and converted into an analog form with the parameters specified by the program (duration, shape and voltage level), which are received at the inputs of the control object. The load switch 9 at the command of the control unit 4 selects one of the output circuits of the control object and connects it to a controlled load 13, which, by the command of the control unit 4, is set to the required load parameters (in terms of resistance). The controlled source 14 of the power supply of the output circuits at the command of the control unit 4 provides the required supply voltage of the output circuits of the control object with a programmable characteristic of the dependence of the voltage over time when checking the control object, which allows you to control transients that affect the parameters of the control object (time characteristics of the signals and their sequence ) According to the instructions of block 4, the switch 7 provides the connection of the controlled load 13 to the normalization block 10, consisting of a voltage meter 11 and a current meter 12, which are necessary for measuring static and dynamic (in time) parameters (voltage and current) on the controlled load 13 at certain time intervals . From the output of the normalization block 10, the signals are transmitted in digital form to the multi-channel comparison block 5. Simultaneously with switching on the switch 7, the control unit 4 generates commands on the virtual standard 6. At the request of the control unit 4, the multi-channel comparison unit 5 processes the signals received from the virtual standard 6 and normalization unit 10, which correspond to the signals of the controlled circuits in terms of voltage and current. The result of the comparison of signals through the control unit 4 and the switch 2 channels is fed to the PC 1 to decide on the suitability of the controlled circuit. After the end of the control process of the selected circuit, PC 1 switches to the control of the next circuit, and continues until the verification of the test object. In addition, the automatic control system provides a self-monitoring mode with checking the output signals of the shaper 8 (for this it is connected to the switch 7) and the measurement errors of the normalization unit 10, which allows you to adjust the set parameters and measurement errors.

Thus, due to the fact that a switchboard of loads, a controlled load, and a controlled power supply of output circuits with corresponding connections are introduced into the equipment, the functional capabilities of the device are expanded and the reliability of the control results is increased.

Claims (2)

1. Automated test equipment containing a personal computer (PC), designed to issue a set of commands to start monitoring and receive data from the control result, the input-output of which is connected to the input-output of the channel switch, control units, each of which consists of a block control, designed for the formation and distribution of control commands to the appropriate blocks, as well as for transmitting the comparison results through the channel switch to the PC, for which the input-output of the control unit with is dined with the input / output of the channel switch, the other input of the control unit is connected to the output of the multi-channel comparison unit, and its second, third and fourth outputs are connected respectively to the inputs of the virtual standard, the switch and the driver of the output signals, the outputs of the switch are connected to the inputs of the voltage meter and current meter forming a normalization unit, the outputs of the voltage meter and current meter are connected to the inputs of the multi-channel comparison unit, the third input of which is connected to the output of the virtual alona, characterized in that a controlled load, a load switch and a controlled power source of output circuits are introduced, the input of which is connected to the fifth output of the control unit, the sixth and seventh outputs of the control unit are connected respectively to the inputs of the load switch and the controlled load, the output of which is connected to the third input switch, the second input of which is connected to the output of the output signal shaper, the first, second and third inputs of the control object are connected respectively to the second and third outputs of the form the output signal circuit and the output of the controlled power source of the output circuits, and the outputs of the control object are to the inputs of the load switch. 2. Automated test equipment according to claim 1, characterized in that it contains at least 3 control units.