SU1500209A1 - Automated closed irrigation system - Google Patents

Abstract

The invention relates to agriculture, in particular, to irrigation of agricultural crops, and can be used on automated closed irrigation systems. The purpose of the invention is to reduce energy consumption by reducing the operating time of the pump station. The automated closed irrigation system contains sprinkling installations 1 connected to the piping network 2 connected via a feed line 3 to a pump station 4, a control unit 5 on the sprinkling installations 1 and a pump station 4, a control signal generating unit 6. Outputs of field and plant sensors 7 are connected to the inputs of the prediction unit of the irrigation start time 8, the output of which is connected to the input of the control signal generating unit 6. The prediction block of the irrigation start time 8 is connected to the output with its input m of the correction unit 9, the inputs of which are connected to the outputs of the pressure sensor 10 installed at the beginning of the supply line, and the outputs of the liquid level sensors 11. 1 sludge.

Description

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operation of the pumping station. The automated closed irrigation system comprises a sprinkler installation 1 connected to a piping network 2 connected via a feed line 3 to a pump station 4, a sprinkler control unit 5 and a pump station 4, a control signal generating unit 6. The outputs of the sensors 7 state of the floor and the plants are connected to the inputs

The invention relates to agriculture, in particular to irrigation of agricultural crops, and can be used on automated closed irrigation systems.

The purpose of the invention is to reduce energy consumption by reducing the operating time of the pumping station during the pre-irrigation period.

The drawing shows an automated closed irrigation system.

The automated closed irrigation system contains a sprinkler installation 1 connected to a piping network 2 connected via a feed line 3 to a pump station 4, a control unit 5 by a sprinkler installation 1 and a pump station 4, a control signal generating unit 6. Outputs of floor and plant 7 sensors connected to the inputs of block 8, the prediction of irrigation start time, the output of which is connected to the input of the block forming a control signal 6. The prediction block 8 of irrigation start time is connected to its input the output of the correction unit 9, to the inputs of which are connected the outputs of the pressure sensor 10 installed at the beginning of the supply pipeline and the outputs of the liquid level sensors 11 installed along the height of the cross sections of the horizontal sections of the pipeline network 2, as well as along the length of the pipelines laid with a continuous decrease in the direction of dead ends plots.

Automated closed irrigation system works as follows.

the start time of the irrigation unit, the output of which is connected to the input of the control signal generating unit. The prediction time start unit 8 is connected to the output of the correction unit 9 by its input, to the inputs of which are connected the outputs of the pressure sensor 10 installed at the beginning of the supply line and the outputs of the liquid level sensors 11. 1 il.

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In the initial state, the piping 2 and the supply piping 3 are empty, the sprinkler installations 1 and the pumping station 4 do not work. In the prediction block start irrigation time unit 8, the maximum prediction time setting is set, which corresponds to the total fill time of the fully depleted network 2 and supply pipe 3, as well as the prediction time error value of the start watering time (the filling time of the network 2 and feed flow line 3 is calculated based on the total the volume of their emptied areas, the performance of pumping units, which are used to fill them and the adopted flow control scheme of these pumps plants when filling pipe network 2 and the flow line 3). From the sensors 7 of the state of the floor and the plants in block 8 of the forecast of the start time of irrigation, information on the water availability of the plants is continuously received. The prediction time block 8 - the start of irrigation analyzes the degree of moisture availability of plants, determines its rate of change, predicts the possible level of moisture provision for plants and plants at a time interval corresponding to a given set of prediction time, and provides information on the available and predicted level of moisture supply of plants. When the predicted level of moisture availability of plants reaches the minimum critical value at which it is necessary to water, the control signal generation unit 6 through

The control unit 5 turns on the pumping station 4. The latter feeds the supply line 3 and the pipeline network 2 with water and switches to the short standby mode (the length of the standby time corresponds to the predicted irrigation start error). When the moisture level of the plants reaches the minimum critical value, the control signal generating unit 6 through the control unit 5 turns on the sprinkler installation 1. Watering is carried out, as a result of which the moisture level of the plants is increased. When the level of water availability of plants reaches the maximum critical value

the control signal generating unit 6 of the sprinkler control unit through the control unit 6 of the 5 control stations and the pump station; the unit forms the control center sprinkler units 1 and the control signal and the plug-in station 4. Over time, the pressure sensors 10 and liquid level sensors 11 to the correction unit 9 receives information on the degree of emptying of certain sections of the pipeline network 2 and supply pipe 3, the correction unit 9

liquid level sensors, the outputs of which are connected to the first and the second inputs of the Liv correction block, the third input of which is connected

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analyzes the fill level of the irrigation pipe, the pressure sensor and the wired network 2 and the supply pipe 3 and, depending on the degree of their emptying, corrects the installation of the forecast time in block 8 of the forecast for the start of watering. The pumping station 4 is put into operation when the pipeline network 2 is partially emptied and the supply pipe 3 is carried out in the same way as when they are completely empty, with the difference that the time between the start-up time of the pump station 4 and the start of irrigation will not be equal to the total value the time of full filling of the pressure sensor installed at the initial part of the supply pipeline with the pipeline, the output of the irrigation correction block is connected to the first input of the prediction block, the start time of the irrigation, other passages which are connected to state sensors and plants claim, wherein the output unit etc. fore cast start times conn chen to the auxiliary input unit 45 generating a control signal

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water network 2 and supply pipeline 3, as well as the magnitude of the prediction error of the beginning of the irrigation time, and the total time of their completion and the magnitude of the prediction error of the beginning of the irrigation time.

Claims (1)

Invention Formula An automated closed irrigation system, including irrigation pipelines inclined in the direction of dead-end sections, sprinkler systems connected to irrigation pipelines connected through a supply pipeline to a pump station, the outputs of the condition of the floor and plants, which differs from the fact that, in order to reduce energy consumption by reducing the operating time of the pumping station, it is equipped with a prediction unit for the start of irrigation time, a correction unit with liquid level transmitters and to the second, the inputs of the irrigation correction block, the third input of which is associated with irrigation press, pressure sensor and irrigation press, pressure sensor and the output of a pressure sensor installed in the initial part of the supply pipeline, wherein the output of the irrigation mode correction unit is connected to the first input of the prediction block for irrigation start time, the other inputs of which are connected to the sensors of the state of the field and plants, and auxiliary input of the control signal generation unit.