KR20200055509A - Liquid supply integrated control system for smart farm - Google Patents

Abstract

The present invention relates to a smart farm liquid manure supply integrated interlocking control system, which performs remotely the check and management of the growth environment of crops such as temperature and humidity, soil moisture, CO_2, a nutrient solution state such as pH + EC, and the like and operation status through a terminal of a manager, and prevents excessive supply of the nutrient solution by measuring the concentration of nutrient solution waste water not absorbed after being supplied to the crops.

Description

{Liquid supply integrated control system for smart farm}

The present invention relates to a liquid fertilizer supply control system, in detail, the temperature and humidity, soil moisture, CO2, nutrient solution pH + EC, etc., the growth environment and operation status of crops are remotely controlled and managed through the terminal of the manager. It relates to a smart farm liquid fertilizer supply integrated interlocking control system that can prevent excessive supply of nutrient solution by measuring the concentration of nutrient solution wastewater that cannot be absorbed after supply.

Currently, in the domestic greenhouse smart farm, hardware automation technology that monitors temperature, humidity, etc. and reflects the cultivation technology to mechanically adjust the environment is applied. That is, through the remote terminal, it checks the inside of the vinyl house, controls the sprinkler / thermal cover / curtain / ventilator, etc., and promotes the convenience of farming.

The growth conditions of these smart farms are different depending on the applied crops, so supplying the correct amount of nutrient solution in a timely manner is different in terms of the key or the set amount and the amount given to the actual crop, so it had to be checked manually from time to time.

In addition, most of the parts used in farming and irrigation equipment used in farms in Korea are installed with slightly modified products based on imported or foreign-made products, so the program is not perfected and frequently breaks down, and equipment providers provide after-sales service appropriately. It is not possible to take a lot of damages due to the inability to operate the equipment.

In addition, the productivity of cultivated plants that are sensitive to the composition state is reduced due to the excessive amount of nutrient solution supplied to the crop, and the amount of nutrient solution production is increased due to excessive nutrient solution production without considering whether or not the crop is absorbed, and sewage and soil There was a problem causing pollution.

The cultivation of nutrient solution basically varies depending on the type of system or the type of medium and fertilizer used, and in particular, the number, temperature, concentration, and acidity of the nutrient solution differ depending on the type or growth stage of the crop. It is necessary to accumulate phosphorus know-how, and it is urgent to develop an optimized manure management / supply system for them, considering that many farmers are elderly.

In particular, the rural ICT field needs to be based on information from real users (farmers), and a system capable of quickly updating and analyzing such information is needed, but the basic products are limited by small and medium-sized SMEs to develop partial technologies and equipment. There was a difficulty in maintenance of the supplied ICT equipment and S / W due to incompatibility between equipment / parts due to supply.

Korean Patent Publication No. 10-2018-0010811 (Jan. 31, 2018)

The present invention was created for the above purposes, and the purpose of the present invention is to inform the growing environment and operation status of crops such as temperature and humidity, soil moisture, CO2, and nutrient solution pH + EC at any time, and when and where through the manager's terminal. It is to provide a comprehensive interlocking control system for smart farm manure supply that can perform remote remote management.

In addition, an object of the present invention is to provide a smart farm liquid manure supply integrated interlocking control system that can prevent excessive supply of nutrient solution by measuring the concentration of nutrient solution wastewater that is not absorbed after being supplied to the crop.

For the above object, the present invention provides a smart farm liquid manure supply control system for an indoor environment, a first temperature and humidity sensor for measuring the temperature and humidity of indoor air, a carbon dioxide sensor for measuring carbon dioxide concentration, and a measure of the amount of light in the room. A first environmental monitoring unit having a first light quantity sensor and a medium monitoring module for measuring temperature and moisture of the medium; A plurality of nutrient solutions are stored, but a plurality of storage tanks, a supply module having a measuring module unit for measuring a chemical numerical value including pH and electrical conductivity of the mixed solution accommodated, and a supply tank provided with a stirrer for stirring the mixed solution, and the storage tank A liquid fertilizer management unit consisting of a dispensing unit that selectively transfers the accommodated nutrient solution in a quantity set in the supply tank; A liquid fertilizer supply unit including a pump for supplying the mixed liquid of the storage tank to an indoor medium, a flow meter for measuring the amount of the mixed liquid supplied, and a solenoid valve for blocking supply; An interlocking control unit controlling the liquid manure management unit in response to the measurement result of the medium monitoring module; A monitoring unit transmitting the measured value of the first environmental monitoring unit to a terminal possessed by an administrator; It is characterized by consisting of .

At this time, an environment including a ventilator that allows indoor air to enter and exhaust the air, a switch that is electrically opened and closed to control the amount of indoor radiation, a carbon dioxide supply to supply carbon dioxide to the room, and an air conditioner to control the temperature and humidity in the room. Control unit; A remote control unit controlling the liquid manure management unit and the liquid manure supply unit by a control command transmitted from the terminal carried by the administrator; Further comprising, the interlocking control unit may control the environmental control unit in response to the measurement result of the first environmental monitoring unit .

In addition, a rain sensor to measure the external rainfall, a second temperature and humidity sensor to measure the outside temperature and humidity, a second light amount sensor to measure the amount of external solar radiation, and an external wind direction and wind speed sensor to measure the wind speed A second environmental monitoring unit provided; In addition, the interlocking control unit may control the environmental control unit by reflecting the measurement result of the second environmental monitoring unit .

In addition, a database for storing the measured values of the first environmental monitoring unit and the measurement results of the second environmental monitoring unit corresponding to the control command of the interlocking control unit over time; An analysis module unit for analyzing the database and correcting control values of the interlocking control unit corresponding to the first environmental monitoring unit and the second environmental monitoring unit; It may further include .

In addition, the switch may be divided into a first opening and closing part for opening rain in the rain, a second opening and closing part for opening sunlight during the daylight hours, and a third opening and closing part for air in and out .

Through the present invention, the temperature and humidity, soil moisture, CO2, nutrient solution pH + EC, etc. can be remotely checked and managed by the manager's terminal, such as the growth environment and operation status of the crop, and the nutrient wastewater that is not absorbed after being supplied to the crop By measuring the concentration, it is possible to prevent excessive supply of nutrient solution, and by controlling various indoor and outdoor environments, efficient crop management can be achieved by deriving and maintaining optimal crop growth conditions.

1 is an overall conceptual diagram of the present invention,
Figure 2 is a block diagram showing the configuration and connection relationship according to an embodiment of the present invention,
3 is a conceptual diagram showing a liquid manure management and supply structure according to an embodiment of the present invention.

Hereinafter, the configuration of the smart farm liquid manure supply integrated interlocking control system of the present invention will be described in detail with reference to the accompanying drawings.

1 is an overall conceptual diagram of the present invention, the present invention is a liquid manure supply control system applied to a smart farm in an indoor environment represented by a vinyl house. By applying the liquid fertilizer supply and dispensing algorithm, it is possible to drastically reduce the cost by reducing the excess nutrient solution and prevent sewage and soil contamination.

Figure 2 is a block diagram showing the configuration and connection relationship according to an embodiment of the present invention, the present invention is the first environmental monitoring unit (1), the second environmental monitoring unit (2), and the manure management unit (3), The main components of the liquid fertilizer supply unit 4, the environmental control unit 5, the interlocking control unit 6, the analysis module unit 7, the monitoring unit 8, the remote control unit 9, and the database DB To be equipped.

The first environmental monitoring unit 1 is a configuration for monitoring the indoor environment where the smart farm is located, that is, the growth conditions of the crops, the first temperature and humidity sensor 11, the carbon dioxide sensor 12, and the first in a detailed configuration. A light quantity sensor 13 and a badge monitoring module 14 are provided.

The first temperature and humidity sensor 11 measures the temperature and humidity of the indoor air, and the carbon dioxide sensor 12 measures the concentration of carbon dioxide in the indoor air. In addition, the first light amount sensor 13 measures the amount of light in the room, and the medium monitoring module 14 measures the temperature and moisture of the medium.

The first environmental monitoring unit (1) is intended to monitor the growth and close environmental conditions of the crops, including temperature and humidity according to the growth characteristics of the crops to be grown, and to the concentration and sunshine amount of carbon dioxide, which closely affects the nutrient supply and photosynthesis of the crops. The corresponding light quantity, nutrient solution and liquid fertilizer supply status and temperature of the medium are measured in real time.

The factors measured by the first environmental monitoring unit 1 in the smart farm in an indoor environment are items that can be artificially controlled as described below.

The second environmental monitoring unit 2 is configured to monitor the outdoor environment, and the measured elements, unlike the first environmental monitoring unit 1, are virtually impossible to control artificially and cultivate crops in a smart farm in an indoor environment. It can be said that the correlation with the condition is also very low.

In fact, the smart farm can meet almost all the requirements for cultivation of crops, but in the present invention, there may be differences from crops grown outdoors due to sealed conditions. Since it is possible to selectively support the elements necessary for cultivation, it is also necessary to monitor the outdoor environment for this.

The second environmental monitoring unit 2 for this purpose has a second temperature and humidity sensor 21, a rainfall sensor 22, a second light amount sensor 23, and a wind speed sensor 24 in a detailed configuration.

The rainfall sensor 22 measures the rainfall in each hour, including the external real-time rainfall situation, and the second temperature and humidity sensor 21 measures the external temperature and humidity. In addition, the second light amount sensor 23 measures the amount of external solar radiation in a clear weather, that is, when sunlight is present, and the wind speed sensor 24 measures the external wind direction and wind speed.

3 is a conceptual view showing a liquid manure management and supply structure according to an embodiment of the present invention, showing the configuration of the liquid manure management unit 3 and the liquid manure supply unit (4).

The liquid fertilizer management unit 3 is configured to manage the nutrient solution and liquid fertilizer, which are the main sources of nutrients for crops, and the supply tank 33 including the storage tank 31, the measurement module unit 32, and the stirrer 331, is prepared. The detailed structure of the part 34 is provided.

The storage tank 31 is a tank that is provided in plural so that a plurality of nutrient solutions are stored respectively, and the stock solutions of various types of liquid fertilizer required for the growth of crops are divided into input and stored.

The supply tank 33 is configured to receive and supply an appropriate amount of liquid ratio from a plurality of storage tanks to mix and prepare the final mixed liquid to be supplied to the medium, and for this purpose, the preparation unit 34 is provided with the storage tank 31 ) Is selectively configured to transfer the nutrient solution accommodated in the amount set in the supply tank (33).

At this time, the measurement module part 32 measures the chemical numerical value including the pH and electrical conductivity of the mixed liquid accommodated in the supply tank and controls the amount of the liquid fertilizer supplied from the preparation part 34 to have a value in a set range. And, agitation of the mixed liquid is performed through the stirrer 331 so that a plurality of liquid ratios stored in the supply tank 33 can be well mixed.

The liquid fertilizer supply unit 4 is configured to supply the mixed liquid made through the liquid fertilizer management unit 3 to the indoor medium, and includes a detailed configuration of a pump 41, a flow meter 42, and a solenoid valve 43. .

The pump 41 serves to supply the mixed liquid of the storage tank to the indoor medium, and measures the amount of the mixed liquid supplied through the flow meter 42 in real time. At this time, a solenoid valve 43 is installed in the supply pipe so as to be adjacent to the flow meter 42 to block and control the supply of the mixed liquid.

The environmental control unit 5 is configured to control environmental factors required for the growth of crops in addition to liquid manure, and basically includes a ventilator 51, a switch 52, a carbon dioxide supply 53, and an air conditioner 54. Is done.

The ventilator 51 is configured to assist the ventilation of the smart farm by allowing indoor air to be introduced and exhausted from the outside air, and the switch 52 is electrically opened and closed to adjust the amount of indoor solar radiation as well as the inflow of rainwater. It is a composition. The carbon dioxide supplier 53 artificially generates carbon dioxide to supply it indoors, and the air conditioner 54 controls the temperature and humidity of the room as an air conditioner.

At this time, the switch 52 may be used for various purposes such as ventilation, insolation control, and rainwater inflow, so that the present invention is configured to be opened and closed in a multi-stage manner, and specifically, the first opening / closing unit 521 that opens during rainy weather and introduces rainwater into the crop ), The second opening and closing part 522 to open the sunlight during the daylight to enter the crop side, and the third opening and closing part 523 to make air flow in and out of the inside and outside are installed, and if necessary, the first opening and closing part (521), the second opening and closing portion 522, the third opening and closing portion 523 is selectively configured to open or close all of the opening and closing.

In addition to this configuration, it is obvious that the environment control unit 5 may also include lighting that emits wavelengths necessary for plant growth by replacing sunlight.

The monitoring unit 8 is a configuration that allows an administrator to remotely check the growth status, and basically collects measurement values of the first environmental monitoring unit 1 and transmits it to the terminal M owned by the administrator in real time. In addition, through an additional function such as an alarm when a measured value occurs over a set range, it helps the administrator to immediately recognize and take action when an error occurs.

The interlocking control unit 6 is a configuration for controlling the crop cultivation environment of the smart farm, and basically controls the liquid manure management unit 3 in response to the measurement result of the medium monitoring module 14 so that a mixed liquid of a fixed amount of liquid manure is discharged. In addition to being controlled to be supplied to, the environmental control unit 5 is controlled in response to the measurement result of the first environmental monitoring unit 1.

That is, the numerical value measured through the first environmental monitoring unit 1 is basically assigned a range value for smooth growth of the crop, and if it deviates from the range value, it can be located within a normal range through the environmental control unit 5 Control. For example, it is to control the air conditioner 54 to adjust the temperature and humidity range, or to periodically control the supply of carbon dioxide and the supply of water and liquid fertilizer according to the needs of crop cultivation.

In addition, the interlocking control unit 6 may control the environmental control unit by reflecting the measurement result of the second environmental monitoring unit 2. In other words, when rainwater and sunlight are good outside, it can help to grow by responding to the indoor environment and increase the resistance of crops through proper ventilation in situations where the fine dust level is low.

To this end, an appropriate algorithm for controlling the environmental control unit in advance is programmed in the interlocking control unit 6 in response to the measurement results of the first environmental monitoring unit 1 and the second environmental monitoring unit 2 to grow crops. Automatic control is performed as the optimal condition for this.

The remote control unit 9 is configured to support the control of the cultivation environment through a remote manager in addition to the automatic control method mentioned above, and basically the liquid manure management unit by a control command transmitted from the terminal M 3) and the liquid fertilizer supply unit 4 is controlled, and the control of the environmental control unit 5 can also be performed.

The remote control unit 9 may be configured to transmit and input control commands to the interlocking control unit 6, based on an application installed in the terminal M carried by the administrator together with the monitoring unit 8.

At this time, the algorithm set in the interlocking control unit 6 may basically reflect a control value reflecting an experiment reflecting the characteristics of the cultivated crop, but as precise control reflecting detailed factors of the smart farm may be required. The environmental measurement value can continuously collect and analyze the control value, so that optimal control value adjustment can be achieved.

To this end, the database DB stores and collects the measurement results of the first environmental monitoring unit 1 and the second environmental monitoring unit 2 corresponding to control commands of the interlocking control unit over time.

In response to this, the analysis module unit 7 analyzes information stored in the database DB, and reflects the analysis results to correspond to the first environmental monitoring unit 1 and the second environmental monitoring unit 2 The control value of one interlocking control unit 6 is corrected. Typically, the first environmental monitoring unit 1 is measured by changing the control value within a predetermined range when the change of the first environmental monitoring unit 1 is not at a desirable level or is insignificant in response to a specific control of the interlocking control unit 6 You can monitor the value change and find the optimal control value.

In addition, by reflecting the geographical conditions in which the smart farm is located, the trend collected from the second environmental monitoring unit 2 can be properly interlocked with the external environment to create an optimal growth environment.

The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

1: 1st environmental monitoring unit 11: 1st temperature and humidity sensor
12: carbon dioxide sensor 13: first light sensor
14: badge monitoring module 2: second environmental monitoring unit
21: second temperature and humidity sensor 22: rainfall sensor
23: second light sensor 24: wind speed sensor
3: Liquid manure management unit 31: Storage tank
32: measuring module 33: supply tank
331: stirrer 34: preparation part
4: Liquid fertilizer supply unit 41: Pump
42: flow meter 43: solenoid valve
5: environmental control unit 51: ventilator
52: switch 521: first opening and closing part
522: second opening and closing 523: third opening and closing
53: carbon dioxide supply unit 54: air conditioner
6: Interlocking control unit 7: Analysis module unit
8: Monitoring unit 9: Remote control unit
DB: Database M: Terminal

Claims (5)

In the smart farm liquid supply control system in an indoor environment,
The first temperature and humidity sensor 11 for measuring the temperature and humidity of the indoor air, the carbon dioxide sensor 12 for measuring the carbon dioxide concentration, the first light quantity sensor 13 for measuring the amount of light in the room, and the temperature and moisture of the medium A first environmental monitoring unit (1) having a medium monitoring module 14 for measuring the;
Each of a plurality of nutrient solutions is stored, but a plurality of storage tanks 31, a measurement module unit 32 for measuring chemical values including pH and electrical conductivity of the mixed solution, and a stirrer 331 for stirring the mixed solution are provided. A liquid fertilizer management unit (3) consisting of a supply tank (33) and a dispensing unit (34) that selectively transfers the nutrient solution contained in the storage tank (31) to an amount set in the supply tank (33);
A liquid fertilizer supply unit (4) comprising a pump (41) for supplying the mixed liquid of the storage tank (31) to an indoor medium, a flow meter (42) for measuring the amount of the mixed liquid supplied, and a solenoid valve (43) for blocking supply. ;
An interlocking control unit (6) for controlling the liquid manure management unit (3) in response to the measurement result of the medium monitoring module (14);
A monitoring unit (8) for transmitting the measured value of the first environmental monitoring unit (1) to a terminal (M) possessed by an administrator; Smart farm liquid fertilizer supply integrated interlocking control system characterized by consisting of .
According to claim 1,
A ventilator (51) that allows indoor air to enter and exhaust the air, a switch (52) that is electrically opened and closed to control indoor solar radiation, and a carbon dioxide supply (53) to supply carbon dioxide to the room, and indoor temperature and humidity Environmental control unit 5 having an air conditioner 54 for adjusting the;
A remote control unit 9 for controlling the liquid manure management unit 3 and the liquid manure supply unit 4 by a control command transmitted from the terminal M carried by the administrator; Further comprising,
The interlocking control unit (6) controls the environmental control unit (5) in response to the measurement result of the first environmental monitoring unit (1) .
According to claim 2,
Rainfall sensor 22 to measure external rainfall, second temperature and humidity sensor 21 to measure external temperature and humidity, second light quantity sensor 23 to measure external solar radiation, wind direction and wind speed outside A second environmental monitoring unit 2 having a wind direction sensor 24 for measuring temperature; Including more,
The interlocking control unit (6) controls the environmental control unit (5) by reflecting the measurement results of the second environmental monitoring unit (2) .
According to claim 3,
A database (DB) for storing measured values of the first environmental monitoring unit (1) corresponding to control commands of the interlocking control unit (6) and measurement results of the second environmental monitoring unit (2) over time;
An analysis module unit 7 for analyzing the database DB and correcting control values of the interlocking control unit 6 corresponding to the first environment monitoring unit 1 and the second environment monitoring unit 2; Smart farm liquid fertilizer supply integrated interlocking control system further comprising a .
The method of claim 4,
The switch 52 is opened in rainy weather, the first opening and closing part 521 for introducing rain water, the second opening and closing part 522 for opening sunlight during the daylight hours, and the third opening and closing for allowing air flow in and out of the interior and exterior ( 523) Smart farm liquid fertilizer supply integrated interlocking control system .

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