SU1531069A1 - Automatic control system for process of polymerization of divinyl-styrene resin - Google Patents

Abstract

The system relates to an automatic control technique for polymerization processes and is used in the manufacture of synthetic rubber. The purpose of the invention is to improve the quality of the output product of the polymerization process. The goal is achieved by the fact that the device for automatically controlling the polymerization process of divinyl styrene rubber, containing a sensor for measuring the conversion of the output product, temperature sensors in polymerization battery reactors connected through regulators to the refrigerant supply valves to the corresponding polymerization units, additionally contains two conversion magnitude calculators , the first block of comparison, the second block of comparison, two blocks of variation of adjustable parameters, frequency adjusters, block of constraints, Adapter of initial values of adjustable coefficients, start pulse shaper, digital-to-analog switch block, tracking-storage block. 4 hp f-ly. 6 Il.

Description

The invention relates to a technique for the automatic control of polymerization processes and is used in the production of synthetic rubber.

The purpose of the invention is to improve the quality of the output product of the polymerization process and increase the control accuracy.

Fig. T is an enlarged block diagram of a system for automatically controlling the polymerization process of disinyl-styrene rubber; Fig. 2 is a block diagram of a comparison block when adjusting the coefficients of a mathematical model; FIG. 3 is a block diagram of a comparison block in the calculation

optimal settings; 4 is a block diagram of a constraint checking unit; FIG. 3 is a block diagram of a level constraint checker; figure 6 is a block diagram of a variation of tunable parameters.

The system for automatic control of the polymerization process of divinyl-styrene rubber contains an initiator flow sensor 1, a monomer flow sensor 2, an emulsion flow sensor 3, an emulsion flow controller 4, a control valve 5, an output product polymerization degree sensor 6, a temperature sensor 7, tori 8 temperature, p

SP

with

ABOUT)

with

of the refrigerant supply flow valves 9, first 10 n second 11 calculators of conversion values, first comparison block 12, second comparison block 13, first 14 and second 15 blocks of variation of adjustable parameters, first 16 and second 17 constants of variation constants, block 18 checking constraints , the setpoint adjuster 19 of the initial values of the adjusted coefficients, the starting pulse generator 20, the block 2 of digital-analogue switches and the tracking-storage unit 22.

The comparison unit 12 comprises the first tracking-storage unit 23, the first BbDi inverter 24, the adder 25, the absolute value detection unit 26, the second inverter 27, the first digital-to-read; switch 28, first delay element 29, second 30, third 31 and quarter 32 digital-analog switches, first comparator 33, fifth digital-to-analog switch FOR, AND element 35, second delay element 36, second tracking unit 37 - storage, third delay element 38 third an inverter 39, a second comparator 40, and a sixth digital-analog switch 41.

Comparison unit 13 contains a unit

42 trailer storage first element

43 delay, the first element And 44, the second element 45 delay, the first 46, second 47, third 48 and fourth 49 digital-analog switches, switch 50, first inverter 51, fifth digital-analog switch

52, the second element And 53, the third delay element 54, the sixth digital-analogue switch 55, the third element And 56, the second inverter 57, the second comparator 58, the adder 59 and the element OR 60.

The coj-constraint check unit 18 holds the first 61 and second 62 digital-analog switches, the digital-to-analog switch block 63 converts the signal from temperature sensors, the third 64 and fourth 65 digital-to-analog converters, the first delay element 66 delays the first 67 68 and the second 69 constants setting units, the AND element 70, the first inverter 71, the OR element 72, the second block 73 for checking level constraints, the third 74 and four 75 constant control devices, the second inverter 76, the second 77 and the third 78 And elements, the second

delay element 79, signaling block 80, level checking circuit 81

. temperature limitations, first temperature adjusters of first 82 constants and second temperature adjusters of third constants of temperature, first block 84 of practice, fifth master of 85 constants, numerator 86 viscosity, second block 87 of division, fourth block 88 of level checkers constraints, the sixth 89 and seventh 90 setters of constants, the third block 91 checks the level of new restrictions, the eighth 92 and ninth 93 sets of constants, the third inverter 94 and the fourth element And 95.

Blocks 67, 73, 81, 88, and 91 are executed in the same way and the first / second controller 96, the first inverter 97, the second capacitor 98, the And 99 element, and the inverter 100.

Blocks 14 and 15 variations of custom parameters are made in the same way.

5 and contain a selector 101 for m outputs, n first elements AND 102, m second elements AND 103, n RS flip-flops 104, m third elements AND 105, m T-trigger-heroB 106, n inverters 107, m first digits of dalogovykh switches 108, p of the second digital-analog switches 109, p of the first 1,10 and second 111 setters, m adders 112, hectares of the first 113 and second 114 tracking units 114, n delay elements 115, first delay block 116, pulse driver 117, pulse generator 118 the second block 119 delay and divider 120.

The system works as follows.

The temperature values in the reactors of the Ti polymerisation battery are stored in the tracking and storage unit 22 when a trigger pulse arrives at its control - 101DI input from the preformer 20. The same pulse arriving at the control input of the setpoint 19 of the initial values of the coefficients of the mathematical model , allows the issuance of initial values, coefficients to the inputs of tracking unit 113-storing unit 14, the variation of 1 parameters, resulting in the fact that these values are stored

5 at the outputs of these blocks (the first output of block 14). Upon receipt of this igshulsa at the control input of the tracking unit 23, the storage unit 12

0

five

0

five

0

five

Comparison when adjusting the coefficients of the mathematical model, the value of the conversion indicator C, measured by sensor 6, is stored at the output of block 23. The start pulse also triggers the generator 118 of clock pulses of block 14.

The mathematical model of the entire polymerization block is represented as an additive function.

Z и.1 ,, т :) (1)

where C is the conversion value at the output of the polymerization block; T; - temperature in the i-th polymerization unit;

d ..- jth coefficient of the mathematical model for the i-ro polymerizer.

To identify the coefficients of the mathematical model (l) d (. The block of polymerization, the least squares method is used. In accordance with this, the identification criterion is

four,

kth and (k-1) -th iteration, respectively;

the value of the step for a given coefficient.

The calculator Yu of the conversion value C implements the mathematical expression (1). The calculated conversion value C from the output of block 4 is fed to the first input of block 12 of the comparison when setting the coefficients of the mathematical model, and the third - the signal from the setpoint generator of the value 4C.

Comparison unit 12, when adjusting the coefficients of the mathematical model, checks some ratios between the measured and calculated values of the conversion rate, as well as issuing, depending on the results of testing, various or other xxx signals to the unit 14, the variations of the adjustable parameters.

Specifically, the calculator 10 implements the following functions: if

yC - (1C - C,

I) oh

(4a)

H

 - (c (,, t, + c / ,, t (2)

where H is the value of the standard deviation of the conversion obtained by the model from the real conversion; С „- conversion measured by the sensor at the output of the polymerization unit.

The task of identification is to determine such values of the coefficients 0 / J. (i 1, n, j 1, 2) for given С „and Tj, which are mini- (criterion value would be (2) Dp optimization (2) used a modified version of the relay gradient method. The basic mathematical relation of the relay gradient method is

.I -l

LN

d, -; + / Jo ((..sign (----), (3)

H

H)

V

 the values of the j-ro coefficient in the mathematical model of the i-ro polymerizer on

3Q TO, a signal is generated for a set of adjusted coefficients (signals are output to the control inputs of block 107); if a

35

yC - (1C - C „|) to O, (46)

no signals are issued; if (1C - CJ) - CIC - CJ). ,, 0, (4c)

then a signal for changing the sign is made (the signal is fed to the second input of the circuit AND 99, corresponding to the parameter being tuned); if a

(| С - Сн1) to - (1C - С „|) to-t 0, (4g)

no signals are issued (index k determines the current iteration number of the iterative procedure for adjusting the coefficients of the mathematical model).

The signal Sc from the output of block 23, the passage through the inverter 24 with the sign -, is fed to the first input of the adder 25, to the second input of which comes with the sign + the signal C from the output of the calculator 10 conversion. The difference signal from the output of the adder 25 (C - - C), the passage through the absolute value determination unit 26 and the inverter 27, is converted into a signal - (C - C p), which is fed to the input of the switch 28.

Digital to analog switch 28 implements the following functions.

1i, if Р 1 О, if Р О,

where Uj, is the input signal; and, - output signal; P - control signal.

The input of the switch 30 from the dial 16 receives a signal equal to the value of the constant of the LAN. Upon arrival at the control inputs of the switches 28 and 30 of a single signal, signals equal to the input appear simultaneously on their outputs, which are fed respectively to the first one and the second inputs of the comparator 33. The comparator 33 performs a logical operation comparing two analog variables. The signal at its output represents a binary variable.

R

1, if and 4- and, o, o, if uj, + and, o,

where and, and - input signals;

P - output signal. The signal from the output to -1parato 33 equal to

R,

1, if LS - (1C - C „|) to OO, if LS - (1C - C„ |) to O,

is fed to the input of the digital-analog switch 34. The signal from the output of block 26, equal to | C - C "I, is fed to the input of switch 31 and the input of block 37, where it is stored after the arrival of the signal to the control input. This control signal comes with a certain delay with respect to the control signal of the 1st signal sent to the control inputs of the switches 28, 30, 31 and 32. This is caused by the fact that the recording of the signal (.C - C „|) in block 37 should be performed only after , as the old value of the signal (1C - С „О., (the value calculated on the previous (K-1) -th step

five

0

five

0

five

0

five

0

five

the procedure (stored in block 37) will be transferred through inverter 39 and switch 32 to the comparator AO. At the moment the control signal arrives at the control inputs of the switches 31 and 32, the input signals of these switches are transmitted to the inputs of the comparator 40, from whose output the signal

Г 1, if (1C - С „() - (| С-С„ 1), 0

Pz 1

o, if (1C - C ,, |) to- (1C-SD., 0

given to the input of the switch 41.

The values of the control signals from the codecs, respectively, of the switches 34 and 41 are fed to the second and third inputs of the block 14 variation of adjustable parameters.

Block 14 of variation of tunable parameters performs the functions of storing the current values of tunable parameters (these values are stored at the outputs of blocks 113), their variation in the direction of decreasing or increasing by the value of HL depending on the value of the signal at the output of the corresponding T-TRIGER 106, issuing customized parameters when a single signal arrives at the control inputs of the tracking unit 114 — stored at the input of the conversion calculator 11 (for the block 15, at the inputs of the regulator of temperature control circuits in the polymerizer). The iteration of the parameter setting procedure is carried out by forming with the help of a chain, a clock pulse generator 118 — a divider 120 — a pulse shaper 117, of a sequence of direct control pulses that are fed to the input of the selector 101.

A selector is a device that transmits pulses to its inputs successively transmits to its outputs (total hectares of outputs by the number of adjustable parameters). After the appearance of a pulse on the g-m step of the selector, the next pulse that has come to its input will again be transmitted to the first output.

All outputs of the selector are connected to identical circuits that perform the function of storing the current values of the parameters and the variation of their values. So, when a digging signal appears at the first output of the selector

915

, 101 at the output of the first adder 112, a signal equal to the increment of LX appears, or -4X (depending on the state of the first T-flip-flop), which D first block 113 adds up to the last current value of the first parameter stored at the output of this circuit . After the value of the signal at the control input becomes equal to O, the new calculated value of the 1st parameter is stored at the output of the first block 113.

Signals equal to the current values of the adjustable parameters from the output of block 113 are transmitted to the second input of conversion calculator 10 C, after which the conversion signal from the output of calculator Yu arrives at the input of comparator 12 when setting the coefficients of the mathematical model, in which the conditions described above. If, as a result of the check, the condition (4c) is met, then a single signal appears at the output of the switch 41 of block 12, which is fed to the inputs of the elements 105 of block 14. Since only the first RS flip-flop 104 is in one However, the single signal only appears at the output of the first element 105, which will change the state of the first T-flip-flop to the opposite. The states of the remaining T-flip-flops 106 are unchanged.

If as a result of the check, (4b), (4d) occur, then the control signals do not develop and the states of the T-flip-flops do not change. . Under the conditions (46, c, d), the tuning process does not end, since the specified accuracy of the calculated value of the conversion value is not achieved.

When a new impulse arrives at the selector input, it will be transmitted to its second output. Under the control of this signal, the next (second) tunable parameter is refined. The same signal will reset the first RS flip-flop 104 to the zero state, and the second will translate to the single state.

The adjustment of the coefficients of the mathematical model is performed cyclically in all parameters until

6910

condition (4a) will not be satisfied. At the output of the switch 34 of block 12, a single signal appears that is applied to the control inputs of the tracking tracking block 114 of block 14, as a result of which the adjusted coefficients of the mathematical model will be stored at the outputs of block 114

Q and will be transmitted to the first input of the calculator 11 of the conversion C. The same signal will start the generator 118 clock pulses of the block 15 variation of the tuning parameters, passing through the delay line 116. It is also a signal for stopping the generator 118 of block 15.

The insertion of optimal temperature settings is performed in the same way as setting the coefficients of the mathematical model. In the process of determining the temperature setpoints, the following optimization problem is solved: these temperatures are found in polymerizers at which the maximum of the criterion (1) is reached under the condition that the following constraints are fulfilled:

0

five

3 i С / С 5; (5а)

4 6 Ti 8, i fTn; (56)

750 QH 900; (5c)

20 QM - 30; (5g)

45 M 70 (5d)

The verification of conditions (5) is carried out by a restriction check block 18, which, if some restrictions are violated, produces additional control signals, which are applied to the comparison block 13 when calculating the optimal settings.

Block 18 verification works as follows. Monitored parameters Q .., Q .., T,

R

fasting

through the corresponding switches 61-63 to the first inputs of the blocks 67, 73 and 81 of checking the level constraints.

The level constraint checker performs a two-level type constraint check.

X "4 X X

at

(6)

where X is the test parameter:.;

11153

X, Хц - respectively, the upper and lower constraints on the parameter being checked. In the event that constraint (6) is satisfied, a single signal appears at the output of blocks 67, 73 and 81. The signals from the outputs of the .67, 73 and 81 blocks are fed to the first inputs of the element 70. The signal for the emulsion consumption Qg goes through the switch 61 to the first input of the dividing unit 84, to the second input of which the signal for the reactor volume is received.

ABOUT

setpoint 85. Signal 1 - with

block 84 is fed to the second input of divider 87, to the first input of which a signal is received equal to the calculated conversion value C from the output of switch 62. This same signal, like the output from divider 84, is also fed to the input of calculator 86 viscosity values M The C / C signal from the output of dividing block 87 goes to the first input of block 91, where it checks the fulfillment of level constraints, the values of which go to the second and third inputs of block 91 from setters 92 and 93. Output signal of block 91

1 if (C / 1) iC / C iCC / f); R

ID, if C / (7 (C / i)) or C / D (C / f is fed to the input of element And 70. The signal from the output of switch 62 is fed to the third input of block 86, which implements the following mathematical expression for calculating - grades of viscosity:

M 2.2501 C - (1.94077. .. „.. f. X ,.; 7) 0.7L5 Qm. 7;

The signal M from the output of block 86 is fed to the first input of block 88, to the second and third inputs of which the signals of the values of the upper M and lower m boundaries, respectively, are set to setting points 89 and 90. From the output of block 88, the signal

f1 if m m 4 o if m m or m m

enters the input element And 70.

five

0 5 o

50

Q

five

12

Violation of at least one of the temperature limitations entails the appearance of a single signal at the output of the element AND 95, which is fed to the second input of the element OR 60 of the comparator unit 13 when calculating the optimal settings.

In the case of all the constraints being checked, a single signal appears at the output of element AND 70 of block 18 (otherwise the signal is zero), which is fed to the second input of element And 44 of block 13.

In the process of determining the optimal settings, the unit 13 checks some ratios between the values of the conversion C and the values of the conversion C calculated at the adjacent iterations and that they are executed during the execution of single control signals.

Specifically, the block performs the following function: if

LS - (С „- S.,) О, (8а)

and CK CK., then the enable signal is generated

on the set value of the optimal settings, if

dC, C,., (86) then a signal is given to change the sign if

LS- (CK - С.,) О (8в) Сс С,., J

the signals are not known. The operation of block 13 is a lot like the work of comparison block 12 when adjusting the coefficients of a mathematical model. The peculiarity of the operation of block 13 is that it checks the conditions (8) only if the first input of the And 44 element receives a single signal from the restriction check block 18 (all checked restrictions (5) are satisfied). Otherwise, conditions (8) are not checked, since this is not necessary (the control signals are determined by block 18).

When the condition (2a) is satisfied, the output of the switch 55 is a single signal; which, in turn, is applied to the control inputs of block 114, as a result of which the optimum temperatures in the polymerization tanks stored in blocks 113 are set as settings to the regulators 8 of the temperature control circuits, respectively, from the first to the twelve polymerization.

Claims (4)

1. A system for automatically controlling the polymerization process of divinyl-styrene rubber, containing an initiator flow sensor, a monomer flow sensor, an emulsion flow sensor connected in series, an emulsion flow controller and a control valve, a sensor for measuring the polymerisation degree of the output product, temperature sensors, each of which is installed in the corresponding polymerization battery reactor, the output of each temperature sensor 25 is connected through a corresponding temperature controller to the control the input of the corresponding refrigerant supply flow valve, characterized in that Q, in order to improve the quality of the output product - polymerization process II, the control accuracy, two calculators of the conversion value, the first comparison unit, the second comparison unit, two variable parameters variation units, two setters constants of variation, block of restrictions, setpoint adjuster of initial values of adjustable coefficients, driver of start pulse, block of digital-analog switches and tracking-storage block, with The output of each temperature sensor is connected to the corresponding information input of the tracking-tracking unit, the control input of which is connected to the output of the trigger pulse generator, the outputs of the tracking-storage unit are connected to the corresponding signal inputs of the first conversion amount calculator, the parameter setting input of which connected to the first output of the first block of variation of adjustable parameters, the output of the first calculator of the conversion value is connected to the first input of the first comparison block, the second input which is connected 40 ,- 50 55 3, about ten 25 Q, .c 40 50 55 with the output of the sensor for measuring the degree of polymerization of the output product, the third input — with the output of the first setter of variation constants, the fourth input — with the second output of the first block of variation of adjustable parameters, the five input — with the output of the trigger pulse former, the first and second outputs of the first comparison unit connected, respectively, to the first and second inputs of the first block of variation of adjustable parameters, the third input of which is connected to the output of the starting pulse shaper, and the fourth input to the output of the initial setpoint generator the adjusted coefficients, the second output of the first comparison block is connected to the first input of the second variable variation block and the control input of the digital-analog switch block, the output of the trigger pulse generator is connected to the control input of the setpoint initial values setter, the third output of the first variable variation block of the adjustable parameters is connected with the first input of the second calculator of the conversion value, the second input of which is connected to the first output of the second variation block n tunable parameters, and the output of the second calculator of the conversion value is connected to the first input of the second comparison unit and to the first input of the restriction block, the second input of which is connected to the first output of the second variation block of adjustable parameters, the third, fourth and fifth inputs are connected respectively to the outputs of the flow sensors emulsion, initiator and monomer, the first and second outputs of the restriction unit are connected respectively to the second and third inputs of the second comparison unit, a quarter of which is connected to the second at the output of the second block, the variation of adjustable parameters, the fifth input - to the output of the second setter of variation constants, the first and second outputs of the second comparison block are connected to the second and third inputs of the second variation block, adjusting the 1–1 parameters, the signal inputs of which are connected to the outputs through a block of digital-analog switches relevant temperature sensors, and setting the outputs of the second 51 The block of variation of the tunable parameters is connected to the corresponding master inputs of the temperature regulators. 2. System pop. 1, different from w; and with the fact that the first comparison unit contains an adder, two tracking-storage circuits, six digital-analog switches, two comparators, three delay elements, an And element, three inverters and a form of absolute value, while the input of the first tracking circuit - the storage is connected to the second input, and the control unit input of the storage circuit is to the fifth run of the comparison unit, and the output through the first inverter with the first input of the first adder, the second input of which is connected to the first input of the comparison unit, and the output first total via serially connected absolute value block and the third inverter to the input of the first digital-to-analog switch, the control input of which is connected to the control inputs of the second, third and fourth digital-analog switches and through the first delay element is connected to the fourth input of the comparator, the output of the first digital-to-analog switch is connected to the first input of the first comparator, the second input of which is connected to the output of the second switch, the input of which is connected to tert the input of the comparison unit, and the output with the input of the fifth digital-to-analog switch, the control input of which is connected to the output of the I circuit, the first input of which is connected to the output of the first delay element, the output of which through the second delay element is connected to the second input of the I circuit, taking an absolute value of the value is connected to the input of the second tracking circuit - storage, the control input of which is connected to the output of the first delay line via a third delay line, and the output through a second inverter connected in series Op and the third digital-to-analog switch to the first input of the second comparator, the second input of which is connected via the fourth digital-analog switch to the output of the block to take an absolute value, the output of the second com Parameter is connected to the input of the sixth digital-to-analog switch, the output of the controller is connected to the first input of the first block of variation of adjustable parameters, the second input of which is connected to the output of the fifth digital-analog switch, the second and fifth inputs of the block are compared with Q respectively with the information and control inputs of the first watchdog circuit - storage, the third input - with the information input of the digital-to-analog switch, the fourth input - with the input of the first delay element, the first input - with the output of the fifth digital tax switch and the second output - with the release of the sixth digital-analog switches. 3. Pop-up system 1, characterized in that the second comparison unit contains six digital-analog switches, two comparators, an add-store circuit, an adder, three AND elements, an OR element, three delay elements and two inverters, the information input of the tracking circuit - the storage is connected to 0 to the input of the first inverter and the first input of the comparison unit, the second input of which is connected to the first input of the first element AND, the third input to the first input of the OR element, the fourth input to the input of the first delay element, the fifth input to the information input of the fourth digital-analogue switch, first exit - with the release of the first element Q OR, the second output is with the sixth digital-analogue switch switch, the output of the tracking system is connected to the information input of the first- to-second switch. digital-analogue switch-., l, the control input of which is connected to the output of the first element I, and to the control inputs of the second, third and fourth digital-analogue switches, called Q digital-analog switch is connected to the first input of the first comparator, the second input of which is connected to the output of the first inverter through the second digital analog switch, and the output of the comparator is connected to the input of the fifth digital-analog switch, the control input of which is connected to the output of the second element I, the first input of which is 5 It is connected to the output of the first element, And the output of the third delay element is connected to the second input of the second element, And the output of the second element H is connected to the control input of the sixth digital-analog switch, the input of which is connected to the output of the third element, And, the first input is connected to the second inverter the output of the first comparator, and the second input of the element I is connected to the output of the second comparator, the first input of which is connected to the output of the adder via the third digital-analogue switch, the output of the fifth digital channel The new switch is connected to the first input of the OR element, the second input of the second comparator is connected to the output of the fourth digital-analog switch, and the code of the first delay element is connected to the second input of the first element AND whose output is connected via the second delay element to the control input of the tracking-storage circuit, the output of the first the inverter is connected to the first input of the adder, the second input of which is connected to the output of the tracking-storage circuit. 4. Pop-1 system, characterized in that the restriction block contains four digital-analog switches, a block of digital-analog switches, a block of the level limit block, a scheme of level limits on temperature, nine constant-sensor sensors, three inverters, an OR element, an alarm unit, two dividing units, a viscosity calculator, four AND elements, two delay elements and two temperature setting units, the outputs of the first and second digital-to-analog converters are connected to the first inputs of the corresponding but the first and second blocks of level constraints, the second inputs of which are connected respectively to the outputs of the first and third constant setting units, the third inputs of the first and second blocks of level restrictions are connected respectively to the outputs of the second and fourth constant setting devices, the output of the third digital-analog switch is connected to the first input of the first division unit , the second input of which is connected to the output of the nth constant setting indicator, and the output to the first 0 five 0 five 0 five 0 five 0 five the input of the second dividing unit, the second input of which is connected to the output of the fourth digital to analogue switch and the first input of the viscosity calculator, the second input of which is connected to the output of the first dividing unit and the third input to the output of the second digital to analogue switch, the output of the second dividing unit connected to the first input The third block of level constraints, the output of the calculator of the viscosity value is connected to the first input of the fourth block of level constraints, the outputs of the sixth and seventh sets of constants of connections here, respectively, with the second and third inputs of the third level limit block, the outputs of the eighth and ninth constant setting units are connected to the second and third inputs of the fourth limitation block, respectively, the output of the digital-to-analog switch block is connected to the first input of the level temperature limit restrictions, the second and third inputs of which are connected respectively, with the outputs of the first and second blocks of assigning constants for temperature, the outputs of the first, second, third and fourth blocks of level constraints and the output with The temperature level restrictions are connected with the corresponding cares of the first element AND, whose code through the third inverter is connected to the first input of the fourth element And, the second input of which is connected to the first input of the third element And and the output of the second element And, the first input of which is connected to inputs of the first, second, third and fourth digital-analog switches and a block of digital-analog switches, as well as with the output of the first delay element, the output of which through the second delay element Connected to the second input of the second element And, the outputs of the first and second digital-analog switches are connected respectively via the first and second inverters to the first and second inputs of the Iirni element, the output of which is connected to the second input of the third And element connected to the output of the signaling unit, the first input of the restriction unit connected to the information input of the fourth digital-to-analog switch, the second input - to the information input of the block of analog-digital switches, the third input - to the information input ter its analog-to-digital switch, the fourth and fifth inputs - respectively, to data inputs pervoZmuAsir Regulator first n digital-analog switches, the first output - with the output of the first element And the second output - with the output of the fourth element I. five - run npils jc f5J Sllroinpulsm (Du.Z HN isJfiO XS 14 7 FIG. - - S3 98 From1Kl60 ytbl JV  CufHOA u (mPnaS & R  inpul with running Compiler G.Nefedova Editor N.Tupitsa Tehred L.Oliynyk Proofreader V.Kabatsiy Order 7955/49 Circulation 788 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and Publishing Combine Patent, g, Uzhgorod, st. 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