SU1702973A1 - Method and device for control of condition of automated irrigation system outfits - Google Patents

Abstract

The invention relates to the field of agriculture and can be used to create systems for automatic control of sprinklers and machines. The purpose of the invention is to improve the quality of irrigation and save irrigation water. : A method for diagnosing irrigation conditions The invention relates to the field of agriculture and can be used to create systems for automatic control of sprinklers and machines, as well as in telecontrol systems and telecontrol on main pipelines. The purpose of the invention is to improve the quality of irrigation and save irrigation water. A method for diagnosing the state of irrigation irrigation aggregates consists in measuring the flow rate in the master aggregates of an automatic irrigation system includes measuring the flow rate in the main pipeline of the irrigation network, during emergency shutdown of the irrigation unit valve, recording pressure pulses transmitted through the main pipeline to activate the irrigation aggregates on the irrigation aggregates. At the same time, after an accident of an irrigation unit with a delay of time not less than the length of the time interval for emptying the pipeline of the irrigation unit and corresponding to its number, the valve of the irrigation unit is opened for a time interval not exceeding the length of the time interval for filling its pipeline. Before the planned end of watering, i.e. at the end of the process of issuing the required irrigation rate of water, the irrigation unit shuts off for the time interval that corresponds to its number in the system, after which it is turned on for the same time interval, 2 sf files, 3 sludge . , ... an irrigation network piping in case of emergency closing of the valve of the irrigation unit and registration of pressure impulses on the irrigation units transmitted through the main pipeline to activate the irrigation units. At the same time, after the accident of an irrigation unit with a delay of not less than the length of the time interval for emptying the pipeline-irrigation unit and the number corresponding to its number, open the valve of the irrigation unit at С 8 чёю VI Сл)

Description

-;

a time interval not exceeding the length of the time interval of filling its pipeline. Re-planned irrigation, i.e. at the completion of the process of issuing the required irrigation. nor.- We go on or when a given number of revolutions of circular machines is completed, the irrigation unit is turned off for the time interval that corresponds to its number in the system, after which it is turned on for the same time interval, ---; ; ;: H: -I: d- For implementations of the writing method, an irrigation system control unit for an automatic irrigation system described below can be used ... ; -.i - fSSrr v -. Figure 1 presents a variant of the timing diagram of the dependence of the flow rate Q on time t in the main pipeline irrigation network and; on fig. functional - on the scheme of the control unit of one unit of irrigated aggregates of the irrigation system; fyg.Z - functional block diagram ob-. processing commands included in the device of the rules of the irrigation aggregate, -F — The timing diagram (figure 1) highlights the Sinterner ASh time tt - Tig, which is divided into one cycle of control of the operation of the units of the ordinal type: cef iga TJ e Scrapes take the time tt r t9 at which changes in water flow Q occur in the main pipeline:. the water will be yelby.seti ..; | -.; - ::; ;;},/ ;WITH ;::-;- . : Diagnostic device: the state of rio- / linear units, implementing the method of up-; ravpayi contains 1 kmpuls generator (FIG. 2) installed on each unit; it generates; prime coal; ; pulse with a constant frequency, block 2 processing commands, leading processing; signaling; coming to his three entrances, -;

; pafbpa 1 pulse and relay 3 dae ry. a. also with the 1st output counter-dt} to | Rattor 4 on pSkhodov. where I 1,2 ..,. п-; прр дК new Yomer aggregate, f - number 6; irrigation units of automatic irrigation system. To the output of block 2 of the processing of kbmznd, the first circuit of 5 coincidences is connected in series, switched on | rio. counting inputs divider 6; counter-decoder 7 with (n + 1) outputs, with the accession to the 1st output, g1urvaTschema; | a logical control unit: an eAect with a wide-controlled valve 9. To the output of the processing unit 2 of the processing unit f, the auxiliary switching off unit 10 is connected. AGREED, THROUGH A | LK) TH | AND BLENDING; p with a case of a mikroyyyklyuchatel, which is separated from the hydrodrorele polyvioogz unit

0

five

0

five

0

five

0

5 0 5;

and opens the contact in case of a unit failure, for example, in case of a dangerous curvature of its pipeline. The first and second inverters 11 and 12 are also included in the irrigation unit control unit. Inverter

11 is connected between the last bit of the counter-decoder 7 and the second input of the first matching circuit 5, and the input of the inverter 12 is connected to the second input of the first logical addition circuit 8 and with the terminating inputs of the first divider b and the first counter-decoder 7. The output of the inverter

12 is connected to the third input of the first matching circuit 5, the fourth input of which is connected to the output of the pulse generator 1.

The irrigation aggregate control unit also contains series-connected between the output of the command processing block 2 and the third input of the first logical addition circuit 8: Contact of the limit switch 13 defining the end of the irrigation unit turn or completion of the required irrigation rate output, third inverter 14. first trigger 15 connected via counting inputs to the output of the inverter 14. and the direct output ;; house to the second matching circuit 16. Besides

In addition, the device contains connected

: on the counting inputs of the second divider 17 and the counter-decoder 4 for n bits, connected to its t-th output, the second logical addition circuit 18, the second trigger 19 by the paired input and the forward output, and the third coincidence circuit 20, the second input from which dealt with the direct output of the first

trigger 15. In addition, a fourth circuit 21 is entered into the device, the first

the input of which is connected to the output of the unit 10 of the emergency shutdown of the unit 10, the second input is connected with the zeroing inputs of the divider 17 and the counter-decoder 4, and connected, with the inverse output of the trigger

1§, and the TV circuit of the coincidence match 21 is connected to the input of the inverter 12 and the second input of the logic addition circuit 8. Three more inputs of the joint device 16 are connected respectively to the outputs of the command processing unit 2.

 pulse generator 1 and direct output of trigger 19, the counting input of which is connected to the 1st output of counter decoder 7; The f-th output of the counter-decoder is also connected to the zero input of the trigger 15.

The command processing unit 2 consists of three serially connected dividers 22-24 of the logic circuit 25 performing the function 2I-NOT, trigger 26 with an open input and an inverse output, a matching circuit 27, a logic addition circuit 28, an one-shot 29 connected to the output The input of the counter of the decoder is 30 s (n + 1) outputs, to the 1st output of which one is connected via one input of circuits 31–33 matches. The inverse output of the trigger 26 is also connected to the second input of the logic circuit 25, and the output of the divider 24 to the second input of the coincidence circuit 27 and the counting input of the counter-decoder 34 for the first bits. Two outputs of the head and (t 0 of this counter are connected to the second and third inputs of the logic addition circuit 28. And the output I is also connected to the zero inputs of the dividers 22-24, the trigger 26, the decoder counter 34, the trigger 35. the decoder counter 36 and 1 input circuit 37 and 38 logical addition,

the outputs of which are connected respectively to the flush inputs of the trigger 39 and 40. The output of the divider 23 through the coincidence circuit 41 is connected to the input of the counter of the decoder 30 .. the last bit of which

 connected via inverter 42 with a second input

. Circuits 41 matches, as well as through a matching circuit 43 with a counting trigger input

35. The inverse output of the trigger 35 is connected to the second inputs of the matching circuits 31 and 43,. and the direct output of the trigger 35 is connected to the second input of the circuit 33 of coincidence. Another two inputs of the matching circuit 31 are connected to

the output of the divider 22 and the output of the relay 3 pressure of the irrigation control unit. The output of the matching circuit 27 is connected to the second input of the matching circuit 32, as well as through an inverter 44 to the third input of the matching circuit 33. The output circuits 31 of the match are connected with the counting input of the counter-decoder 36, and its bits q and p: And p) are connected respectively to g by the fixed input to state 1 of trigger 40 and the second input of the logic addition circuit 38. Outputs 32 matches connected to setup input 1 of trigger 39.

. and the output of circuit 33 coincides with the second

; input circuit 37 logical addition. The third input of this circuit is associated with the i-th output

counter-decoder 4 control devices; sloth irrigation unit. The outputs of the trigger .- - ditch 39 and 40 are connected to the inputs of the circuit 45

a match whose output is output. dbm block 2 processing commands

 control irrigation unit. By entry

block 2 processing commands connected to

the output of the generator I pulses is

input divider 22.

The essence of the method for diagnosing the condition of irrigated units of an automatic irrigation system is as follows.

In the automatic irrigation system -. IU (figure 1). working on a given program, the inclusion of each irrigation

unit is in accordance with the team formed at the pumping station. The command to activate some irrigation aggregate is to change

pressure in the irrigation network by a given value, for example, 0.1-0.2 MPa. This change should be in duration within the specified limits (for example, 1-2 minutes). If pressure change parameters do not go out of the given limits, and. in addition, this change occurs in the time interval allocated for connection with this irrigation aggregate, the command is accepted on the irrigation aggregate as a command to turn it on in this irrigation cycle. Since the time intervals allocated for communicating with irrigation aggregates do not overlap, the sequence number of this interval is in fact the address

0 teams. After the time intervals allocated for communication with all irrigation aggregates, the time intervals allocated for launching the irrigation aggregates begin. Such intervals are selected for all irrigation units of the system; they do not overlap even by. Duration sufficient to start the irrigation unit in the work. In this way, the units are started up, if the commands for switching on have been received in the respective communication intervals.

The shutdown of operating irrigation units occurs in non-overlapping. time intervals allocated for this

5 at the end of the irrigation cycle. Control over start-up and stop of irrigation units according to a given program is carried out by continuously measuring the flow rate at the pumping station, by changing which to known in advance Intervals allocated for starting or shutting down irrigation units, the program execution glaze.

If during the work of the irrigation unit

5 its emergency shutdown occurs, for example, at time ti. what is indicated by a decrease in the flow rate Q (Fig. 1) in the irrigation network, then at the pumping station the time begins to begin, which zekanch0 zaststs at time t2. when it happens . It increases the flow rate Q from irrigation

network, as a result of the inclusion of emergency

irrigation unit. At time t2

the countdown begins again, which

5 is terminated at time t3. when the emergency irrigation unit is turned off and the flow from the irrigation network is reduced. The duration of the time interval G; between times tt and t2 corresponds to the jth. irrigation unit

(1,2, ..., where the number of irrigated units in the system). And the duration of the time interval А g between the moments t2 and ta corresponds to the shutdown of the aggregate in connection with jgymapwea. Taky small icon of ya neosnoZhstan- 5

The central irrigation system will determine that the J-th irrigation unit HaxoflviTca is in an emergency condition. :.: - 4 ::, Klyu (an aryan polynom aggregate to work on a iterator & time. D g ow - 10

The second ratios are changeable and last, for example, 1.5 min. This does not lead to a deepening of the emergency situation, because in such a time it is not enough time to fill the pipeline of the unit with water, emptied through the drain 15 valves after closing the sa-: sliders. Hydro Lindra ,. the disputed disputing carts of the irrigation unit, work only when the water supply pipelines are water, therefore the carts for the 20 interval of short-term switching on A g will not move from the place and the transfer will increase

- the wing of the irrigation unit will not occur. If the k-th irrigation unit (k 1.2,; ... n,

k Ј) completes1 at the moment of the time of the ts pro-25, the process of issuing the required irrigation rate of BP:: -

dy, for example finishes a turn, as ztb;

It happens in u to: kdevaln x machines circular. : act, then in advance. in; techo

.time interval (ts -) at the time of 30

 Neither item 4 gives it a key / nam to indicate the decrease in flow rate Q from

.orit.yolnry network. At the pumping station

A countdown of time begins, which ends at the time ts. when flow Q 35

increased due to inclusions and b-rb irrigation

Assembly s work. Duration of the received time interval Tfc. about the preach

the difference between the moments of time t4 and .t5 corresponds to the k -muplivny unit. B 40

during this time, the k-th irrigation aggregate — found} turned off. However, after the shutdown of the k-ro irrigation plant:

to work in mset time tsero final-nak otk / remenerno proizvodr tPB1e: counting 45

tkVf.e time interval In my temperament: t6, as evidenced by the depreciation of the dis-

move .Q from the irrigation network. From the moment

time of t s up to 1b t1 eG during the interval t), the irrigation unit is fully zzankachzet 50 issuance of the required field. :; Similarly. if i i-th power unit (i

. 1.2, ..., n, k. i f j) calling the irrigation schedule of the YoYuYaVrai yu5yi ta ta the sydzchi process of the required honitVoVV norm, then at time 55 t (17 - tg - l) prbpzBod t its disconnection to it: & al time f ;, soatatet uv-otiii nymyr: in this case the argatz z aztsm.z of the technical opociite / iivHoJ i system, i.e. up to the date;

.

time tv, when the 1st irrigation aggregate is again switched on for the time r and completes the delivery of the required irrigation rate at time tg. The sequence of decreasing and increasing the flow rate Q at the time, moment of time tf, tg, tg and the obtained time intervals between the first shutdown of the time point t7 and the switching on of the irrigation unit at the time tsCri), as well as between the time ts and the moment tg, when The last shutdown of the 1st unit (s) makes it possible to determine at the pump station of the automatic irrigation system that a planned stop of the 1st irrigation unit has occurred and this stop is associated with the completion of the required irrigation rate:

. As an example, the definitions of the numbers k, j, I refer to FIG. The time axis t is divided into equal segments T. The time ti is at the / t interval T2, the t2 time point is at the TS interval, thus the TJ TS interval is T2, aj 3. The time interval А d from t2 to the instant rz is less than the interval T, therefore, at the time ti, the third irrigation unit of the automatic irrigation system disconnected due to the accident. The duration of the time interval g Ta - T T - Te - ri. those. at time ts, the 1st irrigation unit of the automatic irrigation system has completed the delivery of the required irrigation rate, for example, completed a turn if the unit is a wide-range circular irrigation sprinkler. Similarly, Ti Ti3-Tn Tii-T9. therefore, it is possible to judge that at the time tg the second irrigation unit of the automatic irrigation system completed the delivery of the required irrigation rate. The device for diagnostics of the state of irrigation units that implements the method works as follows.

The pulse generator 1 generates rectangular pulses with a constant frequency, which is counted in block 2 of the processing of commands. Thus it is created. the possibility of counting time intervals for communication with irrigation aggregates of an automatic irrigation system, as well as time intervals allocated for commissioning and time intervals allocated for shutting off irrigation aggregates.

If during the time interval allocated for communication with the 1st irrigation aggregate, the pressure relay 3 generated a signal at one of the inputs of the command processing unit 2, which is memorized in it, then during the time interval allocated for launching the 1st irrigation aggregate , at the output of the command processing unit 2, a signal of the level of the logical unit appears and fixes. Thereby, through the emergency shutdown unit 10, the fourth coincidence circuit 21, the first logical addition circuit 8 is opened and maintained in an open state ;. electro-controlled valve 9. The condition for the passage of the signal uroam logical G through the fourth first circuit 21 of the match is the presence of a warning signal, logical 1 at both of its inputs. the second input of this circuit with the inverse output of the first trigger 15 is set. The trigger 15 is set to one at the current output, i.e. the installation of the signal of the logical logic O on the inverse output, this trigger m, will occur only when the contact of the limit switch 13 is opened, which is used to determine the position of the irrigation unit corresponding to the completion of the required irrigation rate.

. If the 1st irrigation unit is in an emergency condition, which may be, for example, when the wing of the unit is skewed, then the output of the unit 1C emergency shutdown will result in a level O signal. The same signal will appear at the output of the circuit 21 of the match, and consequently, at the zero inputs of the first divider 6 and the counter-decoder 7. and at the input of the second inverter 12. The signal of the logic level G appearing at the output of the inverter 12 will allow the passage of pulses

. from the pulse generator 1 through the first circuit 5 of the match, the first divider 6 to the counting input of the counter-decoder 7. When the level signal is logic 1 at its i-th output, and this will happen with a time delay from the moment it triggers

unit emergency shutdown unit 10,

then this signal passed through the first

logical add circuit 8 will produce

switching on the electro-controlled valve 9. The duration of the on state of the unit, i.e. the duration of the open state of its valve (time interval —A t}, and consequently, the i-ro operation time of the irrigation unit for irrigation after an accident will be determined by the frequency of

pulses from the first divider b to the counter-decoder. The transition to the last (i + 1} -e state will lead to the removal of the signal level of the logical unit from the 1st output of this. Counter-descramblers and to the closure of the electro-hydroelectric equipment 9 i-ro irrigation unit. The appearance of the signal a

the last bit of the counter-decoder 7 will result in the removal of the signal of the logic level 1 at the output of the inverter 11 and at the corresponding input of the matching circuit 5. The counter-decoder 7 will retain its state until the accident is eliminated.

on the 1st irrigation unit, when the unit 10 emergency shutdown of the unit again transmits a logic level signal G from a flea 2 processing commands to the input of the fourth coincidence circuit 21,

0: If, when the i-ro irrigation unit is operating, the contact of the on-off switch 13 opens, which is associated with: -aire output of the required irrigation rate, then at the output of the circuit 21 there are

5 v becomes the logic level signal O, Since the initial state of the counter-demons 7 generator is zero, then in its 1st output, corresponding to the irrigation unit number in the automatic irrigation system.

0 there will be a signal of the logic level O. In the same zero initial state, trigger 19 will be located. Immediately after the limit switch 13 is tripped (for example, at time t

5 of FIG. 1) at the inputs of the logical addition circuit 8 associated with the i-th output of the counter-decoder 7 and the output of the coincidence circuit 20 connected in turn by one of the inputs to the output of the second trigger

0 19, there will be three O level signals. This will lead to the removal of the signal holding the electro-hydro-controlled valve 9 in the open state, and it will close, the i-th irrigation unit will preserve titration. At the same time, the logic level signal O applied to the input. the second inverter 12, will allow the passage of pulses from the pulse generator 1 through the first schema 5 coincidence and the first

0 divider 6 to the counting input of the counter-decoder 7. At time ts (FIG. 1), i.e. when in the 1st output of the counter-decoder 7 a signal of the logic level 1 is established. this signal passing through the circuit 8

5 of the logical addition, will lead to the opening of the electro-hydraulically controlled valve 9 and the start-up of the 1st irrigation unit. At the same time, the second trigger 19 is set to the state 0 at the counting input. The counter decoder 4 starts counting the pulses from the pulse generator 1 and passing through the second occurrence circuit 16. as well as through the divider 17. At the moment of time tg, at its I-m output

5. a logical level signal is produced 1. If this signal passes through the second logic addition circuit 18, the second trigger will be reset 19. a single signal is removed from the input of the matching circuit 20 and from the input of the logic circuit B

addin Electroplanger eme valve 9 will go D closed state and

 will block the pipeline of the 1st poliznogo unit. Simultaneously, the signal from the 1st output: ;;.; 8-dei counters: 1Y | fator 4 will reset the first trigger 15 and, consequently, the 4 s divider 17, and through the coincidence circuit 21 will reset the 7-divider counter-decoder 6. In addition, the signal from i- ro output counter-de ... encoder A will reset

v information on the work of the 1st half-unit in block 2 of command processing. Thus, the irrigation control device

the unit returns to its original state, and

 1st irrigation unit turned off

 ; at; communication .with the end of irrigation signal

  .. end switch 13 ... (

Unit 2 processing commands (fmg.Z) work em as follows. : ...,.: .-. ,,

Three signals come to the inputs of the command processing block: from the output of the generator 1 pulses to the I 22 divider. From the output

   3 pressure relay. to the input of the scheme 21 coincidence :: - nor with the L th output of the counter-decryptor 4

to the input circuit 37 logical addition. You; - .- move. Block 2 command processing is

h .; ,;;;: output of circuit 45 of coincidence. .. :: ;; ; ...; .,. :. Rectangular impulse from generator 1 st mpu b block 2 command processing

. passage d successively three steps divided by dividers 22-1 24.

.-; - Lredpo. L0; ; y / nz lousy gna s at his exit from; period

.-, following 10 s, divider 23 - 3 min, del; :; Tel 24 - 1 .h. If you have a counting case

: -; V 34 bits and h24, to

.. every 24 h at the exit. you will work; signals that null the dividers 22 /; ,: / 24;: triggers 26,35.39 and b. Counters-decipher- V;:. Rator 3.0. 34 and 38. resulting in block 2. processing commands will be terminated in the initial state, the incoming signals

.. from the output of the divider 23 through the circuit 41 is the same denp n; and the input of the shifter-decoder 30,

-: lead him to the LM output. This will create the right;: decisive signal at one of the inputs of circuit 31 of the match. If the passage of time

 ; Click here to decoder 3D is in the 1st

: state, relay 3 and reindeer will take command -; , do, predznnuyu with nzrsrnoy stations, then with

;;. output divider 22 through the circuit 31 sbpDyo. no impulse input of the counter de: encoder 36. If the d-pin is a signal,

.. coming from the relay 3 divisions of the gathering

 ; circuits 31, and, tpkovz that the counter decoder 36 plplgigs to q,

.; :: :: - ,; but: with access1. state p (q p), totrng ger 40 installations, it s; single state.

This means the National Standards Committee adopted for the irrigation unit. So

pressure switch and processing unit 2

commands filter interference in the av, thematic irrigation system according to pressure amplitude and duration

Time. -.- ; .: ...: .. ::; ..; ... ...- ... The transition of the counter-decoder 30 to the (n + 1) -th state will lead to the transition to the single state of trigger 35, which ,

The signal in the logic level 1 signal from one of the inputs of the matching circuit 31 will prohibit the receipt of commands in the current policy cycle and, using the matching circuit 33, prepares trigger 39 for zeroing. However,

the reset of the flip-flop 39 does not occur, since at the output of the circuit 27 there is a match at the time of the logic level signal G. Therefore, at the input of the circuit 33 there is a coincidence signal connected to the inverter 44

logical level O.,; -. The inclusion of the 1st irrigation unit after the installation of the trigger 40 in the single state will begin with the appearance of the signal of the logic level 1 at the output of the splitter

24. This signal, existing together with the same signal at the output of trigger 26, will trigger the one-shot 29. The decoder counter 30 will reset and start counting. When at its entrance separator 23 through the circuit

41 matches the 1st pulse arrives, then logic level 1 signals will appear at the OB inputs of the matching circuit 32, so the flip-flop 39 will be switched to one state. If a command was previously received

to turn on the irrigation unit and the trigger 40 is set to one, then

the signal level of the logical 1 is Wits at the output of the circuit 45, i.e. at the exit

block 2 processing commands, which, as discussed above, will lead to the inclusion of the 1st irrigation unit in the work.

The irrigation unit shuts off in each irrigation cycle after filling the counter-decoder 34 to the state of t. In this case, the one-shot 29 generates a signal that plugs the counter-decoder 30. Filling this Counter-decoder with pulses up to state PG leads to The signal level of the logic input of the circuit 33 coincides. At the other two inputs of this circuit, signals of the same level will be present, therefore, through the circuit 37 of the logic

addition, the flip-flop 39 will be reset, and through the coincidence circuit 45 there will be a disconnection of the i-policy unit. Filling the counter-decoder 34 to state I will lead bpoc 2 command processing and the initial state,. ;. .

The technical and economic efficiency of the described method of controlling the oiling aggregates and the device for its implementation is to improve the quality of irrigation by providing opportunities; monitoring the emergency condition of the units and collecting information about the completion of irrigation by irrigation units, which allows to keep records and control of the introduction of moisture into

V soil, and also accurately predict and on; zyachat watering. All these activities give

5-10% opportunity to save water from

irrigation network. When watering described

g method does not hinder the treatment of the field with agricultural machines, as well as

Claims (2)

- there is no over-wetting or under-irrigation of irrigated area, which leads to an increase in the quality of irrigation and favors an increase in agricultural yields. household crops by 3-5%. : Invention Formula. 1. The method of controlling and monitoring the state of automatic irrigation units. irrigation system, which includes measurement of the flow rate in the main pipeline of the irrigation network in case of emergency shutdown of the valve of the irrigation unit, registration transmitted through the main line. ; th piping pressure pulse at   : operation of the unit valve in the emergency state and opening of the latter after; accidents for a time not exceeding the filling time of the pipeline of the unit with delays; .- a good time is not less than the time of emptying the unit and the corresponding number. unit, characterized in that. with - in order to improve the quality of irrigation and energy saving irrigation water, irrigation aggregates record pressure pulses transmitted by - through the main pipeline V to activate and deactivate these valves The units for the time intervals corresponding to their number, and the duration of the time intervals for switching on and off zedwihsek each of these units, are set equal to each other and not less time to fill the pipeline-V and the unit, while at the same time a pulse is given to close the valve of the unit during the time interval of shutdown of the unit to. the moment of the planned end of irrigation by this unit, after which a pulse is given to turn on the valve of the unit to create an interval of time to turn on the valve, after which a pulse is given to turn off this unit, and its stop is considered planned and trouble-free. 2. A control and monitoring unit for the irrigation aggregates of an automatic irrigation system, comprising pressure switches connected in series, a command processing unit, the second input of which is connected to the generator output pulses, the first coincidence circuit, the first divider, the first counter-decoder with the number of outputs per unit more than the number of units in the system and the first inverter connected by the input to the last output 0 of the first counter-decoder, the output to the second input of the first coincidence circuit, as well as the first logical addition circuit, the first input of which is connected to that output of the first decoder counter. 5 the number of which corresponds to the unit number, the electrohydrore control of the unit valve, connected to the output of the first logic circuit, the unit emergency shutdown unit connected to the output of the command processing unit, and the second inverter, the input of which is connected to the grounded inputs of the first divider and the first counter- the decoder and the second input of the first logic circuit, the third and fourth inputs of the first matching circuit are connected respectively to the outputs of the second inverter and the processing unit com And, I differ. Right now, in order to increase 0 irrigation quality and saving irrigation water, the device is equipped with series-connected between the output of the command processing unit and the third input of the first logic circuit breaker 5 by the contact of the limit switch of the end irrigation, by the third inverter, the first trigger connected to its direct output by the second coincidence circuit, the second divider, the second counter-de encoder with the number of outputs equal to the number of units on the system, the second logic addition circuit whose input is connected to the output of the second counter-decoder, the number of which corresponds to the number 5, and the output to the zero input of the second trigger, and the third match circuit, the second input of which is connected to the forward output of the first trigger, and also the fourth match circuit, the first input 0 which is connected to the output of the alarm unit. off the unit, the second input is combined with the zero inputs of the second divider and second counter-decoder and connected to the inverse output of the first 5 trigger, and its output is connected to the input of the second inverter and to the second input of the second logic addition circuit, and the remaining three inputs of the second matching circuit are connected respectively to the outputs of the command processing unit, the impedance generator and the forward output of the second tr igge. This is connected to the third inlet. the counting input of which is connected to the front of the command processing unit and with the south input of the first circuit wrapped with the logical input of the first trigger, add, and the first input of the second circuit is -. 12 Ш.2 $ IG. I F “l  nineteen AND Sh k-aMMuaJ -h Yut /  Fig.Z K5.Y., Kuf6