SU1647521A1 - Device for parameter testing and adjustment - Google Patents

Abstract

The invention relates to instrumentation technology and can be used in systems for automated adjustment and monitoring of electronic equipment parameters. The purpose of the invention is to increase the speed of the device. Sequentially choosing test actions and adjustable parameters, the device provides control of the control object and specification of its parameters by connecting the corresponding passive elements. 1 hp f-ly, 2 ill.

Description

The invention relates to instrumentation technology and can be used in systems for automated adjustment and monitoring of parameters of electronic equipment products.

The aim of the invention is to improve the speed of the device.

Figure 1 shows the functional diagram of the device; figure 2 is a functional diagram of the setup.

The device for automatic control and adjustment of parameters contains (Fig. 1) block 1 of specifying test actions, made in the form of a generator of functions, generating signals necessary and sufficient for controlling and tuning the object, depending on the specific object, a set of signals (their shape, amplitude

etc.) may be different; second 2 switch; object 3 controls; the first 4 switchboard, matching unit 5, made in the form of a block of converters, consisting of converters 6.1-6. K, converting the values of the parameters of the object 3 to a voltage equivalent to the value of the parameter; the third 7 switch, tolerance control unit 8, which compares the value of a parameter converted in a voltage with specified tolerance limits, has control inputs, a gate input and an output consisting of the first 9.1 and second 9.2 digital-analog converters (DAC) and the first 10.1 and the second 10.2 voltage comparators, the control unit 11, generating the device operation control signals, consisting of the generator

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12 pulses, the first 13.1, the second 13.2 counters,, the mode setting unit 14, made in the form of a permanent storage unit, the first 15.1 and the second 15.2 And elements, the first 16.1 and the second 16.2 OR elements, the decoder 17, the trigger 18} display unit 19, consisting of the shift register 20 and the indicator 21J, the tuning units 22, made in the form of switching units of passive elements, contain indicators 23 of the rating of the passive element, the switch 24 passive elements and sets of 25 passive elements. The number of tuning blocks 22 is determined by the number of adjustable parameters of the object 3.

Figure 2 shows the passive element nominal indicator 23, containing the nominal value memory nodes 26, the nominal code decoders 27, the nominal code indicators 28, the passive elements switch 24 containing the relay matrix 29y, the coordinate groups of the transistors 30 and 31, the counter 32, and the decoder 33 tasks the first coordinate of the nominal, the counter 34, the decoder 35 set the second coordinate of the cominal, the contact groups 36 of the relay matrix 29, a set of 25 passive elements containing passive elements 37.

The device for controlling and adjusting the parameters works as follows.

On the Reset signal, the device is reset. all the counters are zeroed and the trigger 18 is set to the logical 1 state, which through the first element OR 16.1 enters the enable input of the second counter 13.2

The pulses from the generator 12 are fed to the clock input of the first counter 13.t, and from its first output to the clock input of the second counter 13.2. The state of the latter is changed by one, since the logical input 1 signal is present at the resolution input and the first address is set at the address inputs of node 14.

At the output of node 14, a control word of the following structure is established: code combinations for controlling the first 4, second 2 and third 7 switches, control codes of the first 9.1 and second 9.2 DAC of the tolerance control unit 8, specifying the upper and lower tolerance limits, selection codes the switching unit 22 of the passive elements, which, in order to reduce the width of the node 14, are fed through the decoder 17 to the enable inputs of the switching units 22 of the passive elements (Fig. 2).

One bit of block 14 is connected to the second input of the first element 15 (logical 1 - the parameter value is monitored without time delay, logical 0 is delayed), the same signal is used to enable (prohibit) the comparators 10.1-10.2 block 8 of the tolerance control, the other with the first input of the first 16.1 element OR (logical 1 - non-configurable parameter, logical O - adjustable parameter).

Suppose that the first parameter of object 3 (tunable) is controlled without a time delay.

The impulse from the second output of the first 13.1 counter goes to the first input of the first 15.1 element I, and from its output logically 1 arrives at the clock input of the shift register 20. Logic 1 is written from the output of trigger 18 to shift register 20. But, since this logical 1 does not carry information, this output of shift register 20 is not used.

The same pulse from the second output of the first 13.1 counter is fed to the clock inputs of all blocks 22 settings. Since from the decoder 17, the code combination has already arrived at the resolution input of all blocks 22. One of the blocks 22 is selected (the one with the logical 1 signal at the resolution input) containing the required set of 25 passive elements. Block 22 settings works as follows.

As a switch 24 of passive elements, a matrix relay switch is used, which provides connection to the inputs of the control object 3 of the corresponding tuning passive element 37 and provides an indication on the indicator 23.

After the arrival of the clock pulse, the selected relay 29 with its contacts 36 connects to the object 3 a corresponding passive element.

The signal from the output of block 1 through the second 2 switch goes to object 3. The adjustable parameter from the output of object 3 through the first switch 4 goes to one of the converters 6.1-6. To block 5. The choice of the converter depends on which parameter is needed in this case in tension.

The voltage from the output of block 5, equivalent to the value of the object's parameter., The triggered 7 switch arrives at the information input of block 8 of the tolerance control.

Impulse from the third exit of the first

13.1 the counter zeroes the trigger 18, preparing it to record information from the 8 block of the pre-control about the impulse from the fourth exit (strobe) of the first counter 13.1 enters the second start of the second element 15.2

and since logical 1 is present at its first input, gating of the first 10.3 and second

10.2 comparators.

Suppose that the first passive element from the set of 25 passive elements did not satisfy the requirements of the specified tolerance by parameter value. As a result, the output of block 8 of the tolerance control will be a logical signal O, which comes through the second 16.2 element OR to the trigger setup input 18 is unchanged. At the inputs of the first 16.elenga OR there will be signals of logical O, and therefore, at the input of the resolution of the second 13.2 counter there will also be a signal of logical O, the counter will be blocked. As a result, the address codes of block 14 do not change, which means that the control word does not change upon the arrival of a pulse from the first output of the first 13.1 counter. The pulse from the second output of the first 13.1 counter goes to the first input of the first 15.1 element And the clock input of the selected block 22 switching of passive elements. As a result, the indicator 21 will display a defect for this parameter “and in the switching unit 22 of the distribution elements, the next relay 29 is triggered and connects the next passive element to the control object 3.

Suppose that this passive element from a set of 25 passive elements has satisfied the requirements of the specified tolerance on the para-meter value.

ten

20

25

ra. At the output of block 8 tolerance. a control signal appears logical 1, which sets the trigger 18 in the unit state. On -. The input of the resolution of the second 13.2 counter also appears as a logical 1 signal. The pulse from the first output of the first 13.1 counter entering the clock input of the second 13.2 counter, the state of the last eman-gc to 1. The next address is set at the address inputs of block 14, and its exits is another control

J5 word. An impulse from the second output of the first 13.1 counter will be used to write logical 1 to the shift register 20. Indicator 21 displays the validity of this parameter. The indicator 23 of the nominal value of the passive element will record the value of the nominal value of the selected passive element. The device proceeds to the control of the next parameter.

Suppose 4 that this parameter is not tunable In this case, the first input of the first 16.1 element OR will be scored .1 - hell 1, i.e. at this address in olech 14 in this

30 bits will be interpreted logical 1. Regardless of which signal (logical 0th logical logic 1) comes from the output of the 8 pre-start control unit through the second element OR 16 and 2, to the setup input of the trigger 18, the device will set it to the appropriate state and from its output the signal goes to the second input of the first element OR 16.1 to

4d enable input of the second counter T3.2 receives a logical signal

After checking the device goes to the next parameter. Indicator 21 Displays Validity Or Marriage

45 for this parameter, the Code Combination coming to the decoder 17 from the output of block 14, while controlling the non-configurable parameter, is such that at the output of the decoder null "sombi-nation, t, e, to the resolution inputs of all blocks 22 of the switching of passive elements, logical O, therefore, none of them is involved in the work.

In some cases, the value of the parameter of the object 3 must be monitored with a delay in time. For example, after applying rectangular pulses of a given amplitude, a duration of 35

five

The bridge of a given frequency to the object 3 at its output should appear a pulse of a given amplitude after 10 s. In this case, a logical O is fed to the second input of the first element, And it is stored in this bit of control words 10 s (the generator frequency 12 can be chosen such that the addresses change to a multiple of a second). After this time, the current control word will logically appear and the gating of the comparators 10.1 and 10.2 (voltage) of block 8, tolerance control, will occur. The rest of the device is identical.

Claims (1)

Invention Formula 1 o A device for monitoring and setting parameters, comprising a first switch, a control unit, an indication unit, and a tolerance control unit, the information inputs of the first switch being information inputs of the device for connecting to the control object outputs, in that , in order to increase the device speed, the second and third switches configuration blocks are entered into it, the matching block and the test action block, whose information outputs are connected to the corresponding information The inputs of the second switch, the outputs of which are the information outputs of the device for connecting the information inputs of the control object, the inputs of the matching unit are the information inputs of the device for connecting the outputs of the monitoring object, and the outputs of the matching unit are connected to the information and the third switch, the output which is connected to the information input of the tolerance control unit, CARES of the minimum and maximum of which, as well as control the inputs of the first - the third switchboard Connected to the corresponding bits of the control control output of the control unit, the strobe input and the tolerance control output of the tolerance control unit are connected to the same output and input of the control unit, the tuning control outputs and syncro o 5 0 0 35 40 45 50 55 The settings of which are connected to the same inputs of the tuning units, whose outputs are the outputs of the device settings for connecting to the settings of the control object, the first and second outputs of the control unit are connected to the information input and the strobe input of the display unit, and the reset input to the reset output of the device. 2, The device according to claim 1, wherein the control unit comprises a pulse generator, the first and second counters, the mode setting node, the decoder, the trigger, the first and second elements, and the first and second OR elements, the output of the pulse generator is connected to the synchronization input of the first counter, the output of which is connected to the synchronization input of the second counter, the output of which is connected to the input of the mode setting node, the corresponding output bits of which are the control output of the unit and connected to the entrance of the mountain This is the output of the unit setting control, the second output of the first count. The clock is the sync output of the control unit and is connected to the first input of the first element I, the third output of the first counter is connected to the installation input on the O flip-flop, the output of which is the first indication output of the block and connected & the first input of the first element OR, the output of which is connected to the enable input of the second counter, the fourth output of the first counter connected to the first input of the second element I. The output of which is the output of the unit strobe, the input of the block tolerance connected to the first input of the second OR element, to the second input of which A reset input of the block connected to the reset inputs of the first and second counters is connected, and the output of the second OR input is connected to the installation input of 1 trigger, the output of the first bit of the mode task node is connected to the second input said first and second AND gates, a second input of the first OR gate is connected to the output of the penultimate node setting mode, and the output of the first AND element is a second output indication. Jjjljj An / & J 29, 1J R 1; 29m "; ; .. + f yes rvJft L 0m o 394 F & .2