KR20200063511A - Self-powered control system for controlled agriculture including energy storage system with solar energy for greenhouse - Google Patents

Abstract

The present invention relates to a control system for energy independence type protected agriculture linking renewable energy and agricultural ICT technology. More specifically, the control system for energy independence type protected agriculture including a solar energy-linked energy storage system (ESS) for a greenhouse comprises: a greenhouse including a house, a switch, a watering unit, a heater, a dehumidifier, and a ventilator; a sensor unit including a temperature and humidity sensor, a soil moisture sensor, and a solar radiation quantity sensor; a self-generation unit producing electric power from sunlight; a wired/wireless communication unit transmitting data collected by having a wired/wireless communication interface with the greenhouse and the sensor unit to an integrated control unit; and an integrated control unit analyzing the data collected through the wired/wireless communication unit to control operation of the greenhouse and the self-generation unit.

Description

Self-supporting facility agricultural control system including solar energy-connected energy storage system (ESS) for facility house{SELF-POWERED CONTROL SYSTEM FOR CONTROLLED AGRICULTURE INCLUDING ENERGY STORAGE SYSTEM WITH SOLAR ENERGY FOR GREENHOUSE}

The present invention relates to an energy-independent facility agricultural control system in connection with renewable energy and agricultural ICT technology, and more particularly, a facility house including a house, a switch, an irrigation unit, a heater, a dehumidifier, and a ventilation fan; A sensor unit including a temperature and humidity sensor, a soil wetness sensor, and a solar radiation sensor; A self-generating unit that produces power from sunlight; A wired/wireless communication unit configured to transmit the collected data to the integrated control unit while forming a wired/wireless communication interface with the facility house and the sensor unit; An integrated control unit that controls the operation of the facility house and the self-power generation unit by analyzing the data collected through the wired/wireless communication unit; relates to an energy-independent facility agricultural control system including a solar energy linked energy storage system (ESS) for a facility house. will be.

Energy, like other parts, is an indispensable element in agricultural and rural life. In the process of producing agricultural products, the labor force that is insufficient is replaced by agricultural machinery, and it uses a lot of energy for heating and cooling, hot water, cooking, lighting, as well as facility horticulture, cold storage, and processing facilities to overcome the seasonal limitations of agriculture.

Energy sources used in agriculture and rural areas account for 52% of petroleum and 40.6% of electricity. Electricity consumption is increasing due to volatility in oil prices and a trend to reduce carbon emissions.

In the agricultural sector, as the smart farm has emerged as a key topic in the agricultural industry due to the 4th industrial revolution, automated facilities have been widely distributed around facility houses and smart factories, and electricity consumption is expected to increase rapidly. A lot of policies and research have been promoted on how to introduce new and renewable energy in other industries, but the policy, research and commercialization products on the use of new and renewable energy in the agricultural field are very insignificant.

Recently, the Ministry of Trade, Industry and Energy, Korea Energy Agency, and Nonghyup Bank have provided policy and financial support to farmers to participate in the photovoltaic power generation project as a rural photovoltaic supply project. It is expected to supplement income.

In addition, KEPCO, Jeollanam-do, and Jeonnam Agricultural Technology Institute used renewable energy sources such as photovoltaic and geothermal energy, energy storage systems (ESS), and energy management systems (EMS) without using fossil fuels for electricity used in farming at facility horticultural farms. The model used is being promoted. It is expected that the introduction of renewable energy, energy storage systems and energy management systems in the agricultural field, which is currently in the early stages, will expand significantly in the future.

In this regard, although big data was constructed and analyzed for energy consumption patterns in factories, buildings, and houses, energy consumption patterns of facilities in agriculture, energy consumption patterns according to weather conditions, and optimal energy management techniques The product used has not been developed yet.

In addition, facilities in the agricultural field have the characteristics that consumption and consumption patterns vary greatly due to seasonal factors, so it is difficult to apply the existing energy management system. Therefore, in order to solve such a problem, an optimal energy management system is required to match the power consumption pattern for each season, weather, and crop growth of agricultural facilities.

In addition, ESS charging and discharging scheduling should be performed to minimize the use of grid power by predicting the amount of solar power generation and power consumption of facilities through weather data.

The present invention was developed to meet these requirements. In relation to the present invention, the Republic of Korea Patent Publication No. 10-2018-0072439 (published date 2018.06.29)'IoT integrated sensor interface based crop growth status real-time monitoring system'; Republic of Korea Patent Registration No. 10-1518212 (Registration Date 2015.04.30)'USN-based plant factory energy integrated management system and method'; A technique for'greenhouse air conditioning and atmospheric environment control system' in Korean Patent Registration No. 10-1696761 (Registration Date 2017.01.10) has been disclosed.

However, the disclosed patents and registered patents are not suitable for application as a technique for minimizing and optimizing by predicting and optimizing an optimized energy management system and power consumption that fits the power consumption pattern of facilities in the agricultural field.

Republic of Korea Patent Publication 10-2018-0072439 (published on 2018.06.29) Republic of Korea Registered Patent 10-1518212 (Registration Date 2015.04.30) Republic of Korea Registered Patent 10-1696761 (Registration Date 2017.01.10)

The present invention is a facility house including a house, a switch, an irrigation unit, a heater, a dehumidifier, and a ventilation fan; A sensor unit including a temperature and humidity sensor, a soil wetness sensor, and a solar radiation sensor; A self-generating unit that produces power from sunlight; A wired/wireless communication unit configured to transmit the collected data to the integrated control unit while forming a wired/wireless communication interface with the facility house and the sensor unit; To provide an energy-independent facility agricultural control system in which renewable energy and agricultural ICT technology are linked through a technology configuration consisting of an integrated control unit that analyzes the data collected through the wired/wireless communication unit and controls the operation of the facility house and the self-generation unit. It is an object of the invention to do this.

In order to achieve the above object,

The present invention is a house made of vinyl or glass, a switch for opening and closing a ventilation window installed on the side of the house, and an irrigation motor and an irrigation valve connected to a water supply pipe installed along the bottom surface of the house. A facility house including a watering part controlling watering in the facility house, a heater controlling indoor temperature in the house, a dehumidifier controlling humidity and a ventilator for purifying air;

A sensor unit including a temperature and humidity sensor for measuring the temperature and humidity in the house, a soil moisture sensor for measuring the humidity of the soil, and a solar radiation sensor for predicting solar power generation;

A photovoltaic power generation unit that produces power from sunlight,

A battery that selectively charges the electric energy produced by the photovoltaic power generation unit under the control of a battery management unit (BMS), and converts the DC power of the photovoltaic and the battery into AC power, and converts the AC power of the system into DC power required for the battery. A bi-directional converter (PCS) that converts data, a battery management unit (BMS) that manages the state of the battery, and an energy management unit (EMS) that monitors and controls the operating status of the battery, bi-directional converter (PCS), and battery management unit (BMS). , Energy Management System), including a self-generation unit including an energy storage device (ESS) that receives and stores the power produced by the solar power generation unit and sells the power stored in a specific time period to the KEPCO system;

A wired / wireless communication unit that collects data from the sensor unit and the self-generation unit and transmits the collected data to the integrated control unit;

An integrated control unit including a display unit that displays data transmitted to the wired / wireless communication unit to an administrator, and a control unit that analyzes data monitored through the display unit and transmits a control signal for controlling a facility house and a self-powered unit; Provides a self-sustaining facility agricultural control system, including a solar energy-connected energy storage system (ESS) for a facility house.

An energy-independent facility farming control system including a solar energy linked energy storage system (ESS) for a facility house according to the present invention has the following effects.

first. The solar power and ESS system specialized in the agricultural facility house can minimize the use of grid power and reduce management costs.

second. It provides a solar power system suitable for facility houses as a renewable energy-based agricultural energy source.

third. By analyzing power consumption patterns of agricultural facilities, it is possible to predict power consumption for each season and cultivated crops, and to provide optimal ESS charging and discharging schedules by considering electricity generation by using the OpenAPI and environmental sensors of the Korea Meteorological Administration. Through this, by using the minimum amount of grid power to reduce the electricity bill of farmers and to sell the remaining power through the system, it is possible to make a significant contribution to the increase in farm income by combining farm sales and solar power sales.

fourth. It provides the schedule charge/discharge control and peak control function of ESS specialized for agricultural facilities by understanding the weather conditions and predicting energy production/consumption by using the environmental sensor and the Meteorological Agency OpenAPI.

fifth. It can be used as a spare power source in case of an emergency such as a power outage due to heavy snowfall or natural disasters.

1 is an overall configuration diagram of an energy-independent facility farming control system including a solar energy linked energy storage system (ESS) for a facility house according to the present invention.
Figure 2 is a schematic diagram showing the overall configuration of a facility house according to the present invention.
Figure 3 is a side cross-sectional view showing the structure of the soil wetness sensor according to the present invention.
Figure 4 is a configuration diagram of the energy management algorithm of the energy storage device (ESS) according to the present invention.
5 is an interface diagram of an integrated control unit and a wired / wireless communication unit according to the present invention.

Hereinafter, the technical configuration according to the present invention will be described in detail with the accompanying drawings.

The energy-independent facility farming control system including a solar energy-connected energy storage system (ESS) for a facility house according to the present invention is seasonal, weather of facilities such as heating, ventilation, dehumidification, irrigation, and switchgear commonly used in agricultural facility houses. It collects and analyzes power consumption patterns for each star and crop growth process, and based on this, includes solar power generation facilities that can be applied to the agricultural field and ESS linked to agricultural facilities.

As illustrated in FIG. 1, it is optimal to predict solar energy production and power consumption of agricultural facilities according to weather conditions by using various environmental sensors installed in the facility house and OpenAPI of the Korea Meteorological Administration, and to minimize system power use. Provides energy operation control system.

More specifically,

As shown in FIGS. 1 and 2, the energy-independent facility farming control system 1 including the solar energy-connected energy storage system ESS for a facility house according to the present invention,

Connected to a house 11 made of vinyl or glass, a switch 12 for opening and closing a ventilation window installed on the side of the house 11, and a water supply pipe installed along the bottom surface of the house 11 Through the irrigation motor 131 and the irrigation valve 132, an irrigation unit 13 for controlling irrigation in the facility house, a heater 14 for controlling the indoor temperature in the house 11, and humidity control A facility house 10 including a dehumidifier 15 and a ventilator 16 for purifying air;

A sensor unit including a temperature and humidity sensor 21 for measuring the temperature and humidity in the house 11, a soil moisture sensor 22 for measuring the humidity of the soil, and an insolation sensor 23 for predicting solar power generation ( 20);

A solar power generation unit 31 that produces power from sunlight;

A battery 321 that selectively charges the electric energy produced by the photovoltaic power generation unit 31 under the control of a battery management unit (BMS), and converts DC power of sunlight and batteries into AC power, and AC power of the system. A bi-directional converter (PCS) 322 for converting DC into DC power required for a battery, a battery management unit (BMS) 323 for managing the state of the battery, and the battery, bi-directional converter (PCS), and battery management unit (BMS) Energy storage that receives and stores the electricity produced from the photovoltaic power generation unit, including an energy management system (EMS) that monitors and controls the operation status of the power generation, and sells the power stored at a specific time period to the KEPCO system. Self-generation unit 30 including a device (ESS) 32;

A wired / wireless communication unit 40 for transmitting/receiving data between wired / wireless communication between the sensor unit 20 and the self-powered unit 30 and the integrated control unit 50;

The display unit 51 displays the data transmitted to the wired / wireless communication unit 40 to an administrator, and analyzes the data monitored through the display unit 51 to analyze the facility house 10 and the self-power generation unit 30 It comprises;; integrated control unit 50 including a control unit 52 for transmitting a control signal for controlling the.

A detailed description of each component constituting the energy-independent facility agricultural control system (1) including the solar energy-connected energy storage system (ESS) for the facility house.

[Facilities house(10)]

Generally, the exterior of the facility house is made of film or glass, and the house is divided into a Dandong house or an interlocking house depending on its shape.

The facility house 10, as shown in FIG. 2, generally includes a house 11 composed of a film or glass outer shell of a frame structure, and a switch used to open and close a ventilation window installed on the side of the house 11 ( 12), an irrigation unit 13 for controlling crop irrigation in the facility house through an irrigation motor and an irrigation valve connected to a water supply pipe installed along the bottom surface of the house 11, and the house 11 A heater 14 for controlling indoor temperature in the room, a dehumidifier 15 for controlling humidity, and a fan 16 for purifying air are provided.

In the present invention, the technical feature of the heater 14 among the technical configurations of the facility house 10 is as described above.

In general, heating allows warm air to be discharged through a long exhaust pipe installed on the floor of a vinyl house. However, in this heating method, since the warm air discharged through the exhaust pipe has a low density and is light, it rises upward and does not come down again, so that the upper temperature in the facility house is always higher than the lower temperature, which causes crop growth. This leads to a very inefficient problem in maintaining the required temperature.

In order to solve this problem, a blower fan for stirring is installed on the upper part of the vinyl house so that the air temperature in the facility house is generally uniform, but the heating efficiency decreases and the overall electric energy consumption increases. .

Accordingly, in the present invention, the vertical height h from the bottom of the vinyl house to the highest point of the ceiling is installed in a region of 1/2h to 1/3h from the bottom, but the stirring heater is installed to face the floor to warm the floor surface. Install so that it is sprayed toward.

In this way, the heat moves up toward the bottom surface by the stirring heater and then rises upward due to the low air density and lightness, so that the temperature inside the greenhouse can be maintained uniformly due to natural air circulation. To make.

[Sensor unit 20]

The sensor unit 20 includes a temperature and humidity sensor 21 for measuring the temperature and humidity in the house 11, a soil moisture sensor 22 for measuring the humidity of the soil, and an insolation sensor 23 for solar power generation prediction It is made including.

The temperature and humidity sensor 21 is a sensor capable of acquiring temperature and humidity at a time, and uses DHT22 as a specific example.

The DHT22 is a supply voltage: 3.3 ~ 6 V DC, output signal: digital signal via single-bus (digital signal via single-bus), operating range: humidity (humidity) 0 ~ 100% RH (Relative Humidity), Temperature 40 ~ 80 ℃, accuracy: humidity (humidity) ± 2% RH (Relative Humidity), temperature (temperature) <± 0.5 ℃, signal period: average 2S (seconds).

The soil wetness sensor 22 is for measuring moisture in the soil, and must contact the soil. Because it is buried in the measurement, the shape of the sensor should be able to detect as much as possible the electrical change according to the moisture content of the soil without interfering with the movement of moisture in the soil.

The moisture level of the soil is one of the most important indicators of soil condition, and the methods of measuring the moisture level of the currently developed soil include dry weight, TDR (Time Domain Reflectometry) and FDR (Frequency Domain Reflectometry), moisture tension method, EC ( Electrial Conductivity).

The soil moisture sensors of the TDR (Time Domain Reflectometry) and the FDR (Frequency Domain Reflectometry) method both receive reflected waves returning by sending high frequencies in the soil. The TDR method uses the time difference of the reflected waves, and the FDR method returns. It uses the change in electric capacity according to the intensity of the reflected wave. TDR and FDR are more expensive than other sensor methods, so TDR and FDR sensors are expensive because they measure the moisture content of the soil using high frequency. Therefore, it is difficult to be used for small and medium sized greenhouses or land cultivation farming centered on land, which is the majority of farms in Korea.

Therefore, in the present invention, a soil wetness sensor 22 capable of measuring a relatively accurate moisture level while being inexpensive is used.

The soil wetness sensor 22, as shown in Figure 3, the substrate 221; A lower electrode 222 formed by depositing aluminum to a thickness of 0.3 to 0.8 μm on the substrate 221; A polyamic acid is coated on the lower electrode with a thickness of 1.5 to 2.4 μm for 20 to 40 seconds at 2,500 to 8,000 rpm using a spin coater to form a coating film, followed by a photolithography process. To form a plurality of holes having a diameter of 300 ~ 700 ㎛ in the coating film through, the primary bake (bake) for 60 ~ 100 seconds at 79 ~ 82 ℃, secondary bake for 60 ~ 100 seconds at 95 ~ 100 ℃ (Bake) and cured, cured at 280 ~ 300 ℃ for 30 ~ 50 minutes (curing) to adjust the thickness to 0.6 ~ 0.8 ㎛ the moisture-sensitive layer to form a polyimide (Polyimide) film; An upper electrode 224 formed by depositing aluminum with a thickness of 0.3 to 0.8 μm on the moisture-absorbing layer 223 is used.

At this time, the polyimide (Polyimide) is a solvent of n-methyl-2-pyrrolidinone (N-methyl-2-pyrrolidone) and 4,4'-oxydianiline (4,4'-oxydianiline) diamine in the reactor ( Diamine), and stirred at 60 ~ 80 rpm for 40 ~ 50 minutes,

The reactor was synthesized by adding anhydrous BPDA (3,3'-4,4'-biphenyltetracarboxylic dianhydride) and BTDA (3,3'-4,4'-benzophenone tetracarboxylic dianhydride) at the same weight ratio for 2 to 3 hours. It is characterized by one.

The sensor unit 20 uses an environmental sensor including a temperature and humidity sensor 21 and a soil wetness sensor 22. At this time, the sensor unit 20 may be connected to the OpenAPI of the Korea Meteorological Administration to achieve optimal ESS charging and discharging in consideration of the amount of power generated according to the weather.

[Self-generated unit (30)]

The energy-independent facility farming control system including a solar energy-connected energy storage system (ESS) for a facility house according to the present invention is a system capable of supplying heat or electricity by utilizing sunlight, and is installed in a facility house as a renewable energy-based agricultural energy source. Provide a suitable solar power system.

The self-power generation unit 30 selectively charges the electric power generated from the solar power generation unit 31 and the solar power generation unit 31 under the control of a battery management unit (BMS). A battery 321, a bi-directional converter (PCS) 322 for converting DC power of solar and battery into AC power, and converting AC power of the system into DC power required for the battery, and managing the state of the battery The solar cell including a battery management unit (BMS) 323, an energy management system (EMS) that monitors and controls the operation state of the battery, a bidirectional converter (PCS), and a battery management unit (BMS). It comprises an energy storage device (ESS) 32 that receives and stores the power produced by the power generation unit and sells the power stored in a specific time period to the KEPCO system.

The energy storage device (ESS) 32 is a device that increases energy efficiency by storing energy and supplying stored energy when necessary. That is, the energy quality is increased and the efficiency is maximized by storing energy when the demand is low and supplying energy when the demand is high.

The bi-directional converter (PCS, Power Conditioning System) 322 is a bi-directional converter that converts DC power of solar and battery into AC power, and converts AC power of the system into DC power required for the battery. It has discharge power control and forced shut-off in case of emergency. In addition, there is a system linkage with the power grid, communication function with EMS/ESS, and emergency power supply function in the event of power failure and protection functions such as voltage, current, and frequency. It is possible to operate efficiently by setting the operation mode according to the power situation.

The battery management unit (BMS) 323 is a battery management system that increases the life of the battery and increases the stability of the system.

And such an energy management algorithm of the energy storage device (ESS) 32, as shown in Figure 4, by checking the state of the battery, the ESS charging scheduler 36 for charging the solar energy according to a schedule, It comprises an ESS discharge scheduler 37 for discharging solar energy according to a schedule, and a load scheduler 38 according to the schedule determination of the ESS charge scheduler 36 and the ESS discharge scheduler 37.

[Wire/Wireless Communication Department(40)]

The wire / wireless communication unit 40 serves to transmit and receive data between the sensor unit 20 and the self-power generation unit 30 and the integrated control unit 50 through wire / wireless communication.

At this time, wired / wireless communication includes RS485 serial communication, RFID (Radio Frequency Identification), Bluetooth, Infrared Data Association (IrDA), UWB (Ultra Wideband), ZigBee, NFC (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, Wireless USB (Wireless Universal Serial Bus) is selected from any one or two or more.

[Integrated control unit 50]

As shown in FIG. 5, the integrated control unit 50 interfaces with a wired / wireless communication unit to integrally control energy operation management and control agricultural facilities.

The display unit 51 displays the data transmitted to the wired / wireless communication unit 40 to an administrator, and analyzes the data monitored through the display unit 51 to analyze the facility house 10 and the self-power generation unit 30 It comprises a control unit 52 for transmitting a control signal for controlling the.

In addition, the energy operation management and agricultural facility control are performed by the ESS charging scheduler 36, and the ESS charging scheduler 36 is operated by a load scheduler 38. And the load scheduler 38 is operated through the integrated energy operation DB.

The integrated control unit 50 utilizes the Meteorological Agency's Open API and environmental sensors that make up agricultural facilities to determine weather conditions and predict energy production and consumption, so that overall energy operation control can be achieved.

More specifically,

Calculate solar power generation based on the Meteorological Agency's Open API and solar radiation sensor data, predict the future solar power generation through the amount of cloud, temperature, and humidity provided by the Meteorological Agency's Open API, and analyze energy consumption patterns of agricultural facilities. By estimating energy consumption through, it provides an optimal ESS charge/discharge schedule considering energy production and consumption.

The Open API is to disclose information or applications owned by other information systems so that they can be utilized through a network. It is a user-oriented business model that induces user participation through the provision of a simple and intuitive interface to control data.

The Meteorological Agency's Disaster Prevention Meteorology Open API provides weather information in the form of an Open API for use by private and related organizations.

The energy self-sustaining facility agricultural control system using renewable energy and agricultural ICT according to the present invention uses the environmental sensor and the Meteorological Agency OpenAPI to identify weather conditions and predict energy production and consumption to schedule charging/discharging control and peaking for ESS specialized in agricultural facilities. Provides control functions.

Providing the effect of raising farm income by supplying power to a heating system that requires a lot of electricity in the winter and selling remaining electricity in the summer.

It can be used as a backup power source in case of an emergency such as a power outage due to heavy snowfall or natural disasters.

In the future, it can be used to analyze the power source and load pattern of the microgrid site linked to the agricultural ICT, and after commercialization, it can be applied to the agricultural microgrid site to operate energy suitable for various power generation and consumption patterns by agriculture sector, region, season, and usage. Develop a system.

For this reason, industrial applicability is high.

10: Facility house 11: House
12: switchgear 13: watering part
14: heater 15: dehumidifier
16: Ventilation fan 20: Sensor unit
21: temperature and humidity sensor 22: soil moisture sensor
23: solar radiation sensor 30: self-power generation
31: solar power generation unit 32: energy storage device (ESS)
40: wired / wireless communication unit 50: integrated control unit
51: display unit 52: control unit
321: battery 322: bi-directional converter (PCS)
323: Battery management unit (BMS) 324: Energy management unit (EMS)

Claims (5)

Connected to a house 11 made of vinyl or glass, a switch 12 for opening and closing a ventilation window installed on the side of the house 11, and a water supply pipe installed along the bottom surface of the house 11 Through the irrigation motor 131 and the irrigation valve 132, an irrigation unit 13 for controlling irrigation in the facility house, a heater 14 for controlling the indoor temperature in the house 11, and humidity control A facility house 10 including a dehumidifier 15 and a ventilator 16 for purifying air;
A sensor unit including a temperature and humidity sensor 21 for measuring the temperature and humidity in the house 11, a soil moisture sensor 22 for measuring the humidity of the soil, and an insolation sensor 23 for predicting solar power generation ( 20);
A photovoltaic power generation unit 31 for generating electric power from sunlight, a battery 321 for selectively charging the electric energy produced by the photovoltaic power generation unit 31 under the control of a battery management unit, and solar power And a bi-directional converter (PCS) 322 that converts DC power of the battery into AC power, and converts AC power of the system into DC power required for the battery, and a battery management unit (BMS) 323 that manages the state of the battery. And, including the battery, bi-directional converter (PCS), an energy management unit (EMS, Energy Management System) 324 that monitors and controls the operating status of the battery management unit (BMS) to supply power produced from the solar power unit A self-generation unit 30 including an energy storage device (ESS) 32 that receives and stores and sells power stored in a specific time period to the KEPCO system;
A wired / wireless communication unit 40 for transmitting/receiving data between wired / wireless communication between the sensor unit 20 and the self-powered unit 30 and the integrated control unit 50;
The display unit 51 displays the data transmitted to the wired / wireless communication unit 40 to an administrator, and analyzes the data monitored through the display unit 51 to analyze the facility house 10 and the self-power generation unit 30 Integrated control unit 50 including a control unit 52 for transmitting a control signal for controlling the; energy-independent facility farming control including a solar energy-connected energy storage system (ESS) for a facility house comprising a system.
The method according to claim 1,
For the vertical height h from the bottom of the house 11 to the highest point of the ceiling, a plurality of heaters 14 are installed in the area of 1/2h to 1/3h from the bottom, but the stirring heater is installed to face the floor to warm air. Energy-independent facility agricultural control system including a solar energy-connected energy storage system (ESS) for a facility house, characterized in that it is installed to be sprayed toward the floor.
The method according to claim 1,
The soil wetness sensor 22 includes a substrate 221,
A lower electrode 222 formed by depositing aluminum with a thickness of 0.3 to 0.8 μm on the substrate 221;
A polyamic acid is coated on the lower electrode to a thickness of 1.5 to 2.4 μm for 20 to 40 seconds at 2,500 to 8,000 rpm using a spin coater to form a coating film, followed by a photolithography process. To form a plurality of holes having a diameter of 300 ~ 700 ㎛ in the coating film through, the primary bake (bake) for 60 ~ 100 seconds at 79 ~ 82 ℃, secondary bake for 60 ~ 100 seconds at 95 ~ 100 ℃ (Bake) to cure, and cured at 280 ~ 300 ℃ for 30 ~ 50 minutes (curing) to adjust the thickness to 0.6 ~ 0.8 ㎛ the moisture-sensitive layer to form a polyimide (Polyimide) film, and
It consists of an upper electrode 224 formed by depositing aluminum to a thickness of 0.3 ~ 0.8 ㎛ on the upper portion of the moisture-sensitive layer 223,
The polyimide is a solvent of n-methyl-2-pyrrolidone and 4,4'-oxydianiline (4,4'-oxydianiline) diamine in the reactor. ), and stirred at 60 ~ 80 rpm for 40 ~ 50 minutes,
Synthesis by adding anhydrous BPDA (3,3'-4,4'-biphenyltetracarboxylic dianhydride) and BTDA (3,3'-4,4'-benzophenone tetracarboxylic dianhydride) to the reactor at the same weight ratio for 2 to 3 hours. Control system for energy self-supporting facility farming, including a solar energy-connected energy storage system (ESS) for facility houses, characterized in that it is made.
The method according to claim 1,
Wired / Wireless communication includes RS485 serial communication, RFID (Radio Frequency Identification), Bluetooth, Infrared Data Association (IrDA), UWB (Ultra Wideband), ZigBee, NFC (Near Field Communication), Wi-Fi ( Self-supporting facility including a solar energy-connected energy storage system (ESS) for a facility house, characterized in that it is one or more selected from Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus). Agricultural control system.
The method according to claim 1,
The energy storage system (ESS) checks the state of the battery, and the ESS charge scheduler (36) for charging solar energy according to a schedule, and the ESS discharge scheduler (37) for discharging solar energy according to a schedule, Energy self-sustaining type comprising a solar energy linked energy storage system (ESS) for a facility house, characterized in that it comprises a load scheduler 38 according to the schedule determination of the ESS charge scheduler 36 and the ESS discharge scheduler 37. Control system for facility agriculture.

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