WO2014058081A1 - System and method for cultivating plant using led lighting, led lighting device for plant cultivation and method for driving said device - Google Patents

Abstract

An embodiment of the present invention relates to an LED lighting system for plant cultivation and to a method for cultivating plant using LED lighting. The LED lighting system for plant cultivation according to an embodiment of the present invention comprises a sensor module which has a sensor for sensing information on the cultivation environment for plants cultivated in a certain place, which provides generated data sensed by the sensing to a controller for analyzing the sensing data, and which controls the cultivation environment using the control data provided based on the result of the analysis on the sensing data; an operating device for a manager, which stores, into a memory, the control data for controlling the cultivation environment into a lookup table format, and outputs the control data according to the request provided from the controller based on the result of the analysis on the sensing data; a gateway which transmits the sensing data from the sensor module and provides the received sensing data to the controller, and which transmits the control data from the operating device for a manager and provides the received control data to the sensor module and to a module other than the sensor module; and a control module which receives the control data from the gateway, which selects the color of the LED light radiated onto the plant based on the control data, and which performs dimming control to convert a wavelength of the selected LED light. (Representative drawing) FIG. 2

Description

Plant cultivation system and method using LED lighting, LED lighting device for plant cultivation and driving method thereof

Embodiment of the present invention relates to a plant cultivation system and method using LED lighting, LED lighting device for plant cultivation and a method of driving the device. More specifically, LED lighting can be used to remotely monitor the plant's internal condition or cultivated plants, or to directly control and manage the Internet and the Ethernet network to smoothly connect the manager's operating system to the producers to increase stability and reliability. It relates to a plant cultivation system and method, an LED lighting device for plant cultivation and a method of driving the device.

The contents described in the following sections provide background information related to the embodiments of the present invention, but it does not constitute a prior art.

In general, plant cultivation is achieved by feeding fertilizers and water to seeds planted in the soil and taking advantage of photosynthesis occurring in plants by sunlight. This cultivation method not only affects the production of climate change, but also causes environmental problems as well as cost due to the use of fertilizers and pesticides.

In recent years, it is noted that the growth of plants is caused by photosynthesis. By supplying wavelengths necessary for photosynthesis using artificial light sources, LED (Light Emitting Diode) not only promotes plant growth but also is not affected by the climate. The method of increasing the productivity of the plant by enabling the plant cultivation of the plant and environmentally friendly plant cultivation with no pesticides is in the spotlight.

1 is a view showing a general plant cultivation house structure.

As shown in Figure 1, the general plant cultivation house structure is a frame (F) is installed in the house blowing fan, watering facilities. In this case, an LED module (not shown) for providing an artificial light source may be additionally installed in the frame (F), and a manager computer (not shown) for controlling temperature and humidity in the house and controlling the amount of LED emission is provided in the house. It may be provided separately.

However, this structure has a problem that it is difficult to individually control each cultivated plant because the network connection and control between the manager computer in the plant factory and the LED module of the remote point is not precisely made. For example, wavelength control, pulse control, duty rate, on / off time, and intensity control of LED modules may not be performed correctly as the photosynthetic activity of cultivated plants grows. It was.

In addition, the LED module used in the plant factory, and the power system and the control system including the LED module is not standardized, causing a cost increase of the cultivated plants, there was a problem that the economic efficiency of the plant cultivation.

According to an embodiment of the present invention, the control data for each plant, growth period, and time zone / day and night are controlled in the memory of the manager's operating system in consideration of differences in wavelength, light quantity, illuminance, and luminance that promote photosynthesis for each plant. Plant cultivation system and method using LED lighting that can promote the growth of cultivated plants by storing in the form, for example, when the user selects a mode, and individually controls the network, LED lighting device for plant cultivation and a method of driving the device The purpose is to provide.

In addition, when the plant growing area is increased due to the increase in the length or area of the plant growing bed, the convenience of installation of the LED module is increased, and the LED module is designed to have control flexibility in response to the increase of the area. System and method for plant cultivation using LED lighting that can control PWM (Pulse Width Modulation) or voltage and current control of cultivated crops with one ID when connecting to a network, LED lighting device for plant cultivation and Another object is to provide a method of driving the device.

The plant cultivation system using the LED lighting according to an embodiment of the present invention includes a sensor for sensing the cultivation environment information of the plant cultivated at any place, the control of the data generated by the sensing analysis of the sensing data A sensor module provided to an apparatus and controlling to adjust the cultivation environment using control data provided based on an analysis result of the sensing data; An administrator operating device for storing the control data for adjusting the cultivation environment as a look-up table and outputting the control data in response to a request provided from the control device based on a result of analyzing the sensing data; A gateway for receiving the sensing data from the sensor module and providing the sensing data to the control device, and receiving the control data from the manager operating device and transmitting the control data to a module other than the sensor module and the sensor module; And a control module for receiving the control data from the gateway, selecting a color of the LED light irradiated to the plant based on the control data, and dimming control to perform wavelength conversion of the selected LED light. It features.

LED lighting device for plant cultivation according to an embodiment of the present invention includes a plurality of unit modules for irradiating the LED light to maintain different cultivation environment according to the type of plants grown in any place, the unit module is the place A light emitting module having ID (Identification) information for determining the location of the light emitting module, the light emitting module being coupled to each other according to an increase in the cultivation area of the plant; And a sensor for sensing information about the cultivation environment, and providing the data generated by the sensing to a control device in which the sensing data is analyzed and using the control data provided based on a result of analyzing the sensing data. A sensor module for controlling to adjust the cultivation environment; A control module that receives the control data and the ID information provided based on an analysis result of the sensing data and controls dimming to irradiate different LED light from the unit module based on the ID information; A voltage providing device configured to receive a commercial power source, convert a DC voltage, and provide the converted DC voltage to at least one of the light emitting module, the sensor module, and the control module; And a metering module for acquiring voltage related information provided from the voltage providing device and providing the voltage related information to the control device and resetting a power state of the voltage providing device using the control data provided based on a result of analyzing the voltage related information. Characterized in that it comprises a.

In a plant cultivation method using an LED light according to an embodiment of the present invention, the sensing device generates sensing data by sensing cultivation environment information of a plant grown in an arbitrary place, and the sensing device analyzes the sensing data. And controlling the sensor module to adjust the cultivation environment using the control data provided based on an analysis result of the sensing data. Storing the control data for adjusting the cultivation environment in the form of a look-up table, and outputting the control data in a manager's operating device in response to a request of the controller based on a result of analysis of the sensing data; Receiving, by the gateway, the sensing data from the sensor module and providing the sensing data to the control device, receiving the control data from the manager operating device, and transmitting the control data to a module other than the sensor module and the sensor module; And receiving the control data from the gateway, selecting a color of the LED light irradiated to the plant from the control module based on the control data, and dimming control to perform wavelength conversion of the selected LED light. It is done.

A method of driving a plant cultivation LED lighting apparatus according to an embodiment of the present invention comprises the steps of irradiating the LED light from a plurality of unit modules having ID information for determining any place where different kinds of plant cultivation; Sensing information about the cultivation environment of the plant is generated to generate sensing data, and the generated sensing data is provided to a control device in which the sensing data is analyzed, and control data provided based on a result of analyzing the sensing data. Controlling to control the cultivation environment; Dimming control by receiving the control data and the ID information provided based on the analysis result of the sensing data and irradiating different LED light from the unit module based on the ID information; Receives AC power and converts the DC voltage, and provides the converted DC voltage to at least one module of the light emitting module for irradiating the LED light, the sensor module for controlling the cultivation environment and the dimming control module Doing; And acquiring voltage related information provided to the light emitting module, the sensor module, and the control module to the control device, and using the control data provided based on a result of analyzing the voltage related information. And resetting power provided to the sensor module and the control module.

According to an embodiment of the present invention, the network connection and control of the operating device for the manager inside the plant factory and the LED module of the remote branch can be precisely made individually for each cultivated plant to promote plant growth.

In addition, it is possible to standardize the LED module used in the plant factory, or the power system and the control system including the LED module can reduce the cost of cultivating plants, thereby increasing the economics of plant cultivation.

1 is a view showing a typical plant cultivation house structure,

2 is a view showing a plant cultivation system using LED lighting according to an embodiment of the present invention,

3 is an exemplary diagram of a remote control program executed in the control device of FIG.

4 is a circuit diagram illustrating a voltage providing device, a control module, and a light emitting module of FIG. 2;

5 is a view showing a plant cultivation process using LED lighting,

6 is a diagram for explaining PWM control.

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible even though they are shown in different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

In addition, in describing the component of this invention, terms, such as 1st, 2nd, A, B, (a), (b), can be used. These terms are only for distinguishing the components from other components, and the nature, order or order of the components are not limited by the terms. If a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected to or connected to that other component, but there may be another configuration between each component. It is to be understood that the elements may be "connected", "coupled" or "connected".

2 is a view showing a plant cultivation system using the LED lighting according to an embodiment of the present invention, Figure 3 is an exemplary view of a remote control program executed in the control device of FIG.

As shown in FIG. 2, the plant cultivation system using the LED lighting according to the embodiment of the present invention is a wired / wireless sharing device 221 as a control device 200, a communication network 210, and a system in a plant factory provided outside the plant factory. ), Administrator operating device 223, gateway 225, photographing device 227, voltage providing device 229, control module 231, metering module 233, sensor module 235, light emitting module 237 Part or all).

Here, the wired / wireless sharing device 221, the manager operating device 223, the gateway 225, the photographing device 227, the voltage providing device 229, the control module 231, the metering module forming the system in the plant factory ( 233, some or all of the sensor module 235 and the light emitting module 237 may be referred to as an LED lighting device for plant cultivation.

The control device 200 is, for example, a computer integrated device provided in a specific company or university, for example, can execute an IFD program and a remote control dedicated program as shown in (a) and (b) of FIG. 3. Through this, the environment in the plant factory in which the plant is cultivated is monitored in real time, and the color temperature of the light emitting device arranged in the light emitting module 237 in the plant factory, for example, LED is set. In addition, using the Internet protocol such as TCP / IP to remotely control the photographing device 227, and collects data sent from the photographing device 227 and the sensor module 235 disposed in the plant factory. Here, the color temperature of the light emitting device may be set in units of pixels or blocks. If a pixel is a unit of R, G, and B, the block is a unit of a plurality of pixels. The control device 200 may specifically grasp the growth conditions under which the plant is grown, for example, by analyzing data collected from the photographing device 227, the metering module 233, and the sensor module 235. For example, if it is determined that the internal environment is not appropriate as a result of partial or total determination of temperature, humidity, illuminance, wavelength, power, current, voltage, etc. in the plant factory, it is notified to the manager operating device 223 according to the control data. Maintain an optimal environment. In this process, the control device 200 can provide the relevant information to the terminal device of the user who manages the plant factory, where the terminal device includes a mobile phone and the like.

The communication network 210 connects the control device 200 provided outside the plant factory and the wired / wireless sharing apparatus 221 in the plant factory to each other. The communication network 210 includes both wired and wireless communication networks, and the Internet network is preferable, and the wireless communication network includes, for example, a CDMA network, a WCDMA network, a GSM network, and an access network of a next generation mobile communication system to be implemented in the future.

The wired / wireless sharing device 221 may perform a process of converting a signal or information to enable the wired / wireless communication between the control device 200 and the manager operating device 223 or the control device 200 and the photographing device 227. In addition, a path setting process for searching for an operating device 223 and a photographing device 227 for a manager in a plant factory may be performed. For example, the information provided through the Internet protocol from the control device 200 is converted into a wireless protocol such as Zigbee (Zigbee), Wi-Fi (WiFi) in the wired / wireless sharing device 221, the manager operating device 223 or the recording device 227 ), And vice versa.

The manager operating device 223 is, for example, a computer provided in a house or a plant factory in which plant cultivation is performed, and includes a memory in the form of a lookup table. The memory stores control data, that is, information related to light quantity, temperature, humidity, illuminance, wavelength, and carbon dioxide concentration, power, current, voltage, and the like. 231, the metering module 233, and the sensor module 235. For example, when there is a request from the control device 200 to the manager operating device 223, the user of the manager operating device 223 selects control data corresponding to a specific situation according to the request, thereby selecting a gateway ( 225, the gateway 225 transmits the data to the control module 231, the metering module 233, and the sensor module 235.

The gateway 225 includes an LCD-type gateway, and receives the control data by the user interface provided from the administrator operating device 223 and controls the control module 231 and the metering module through short-range communication such as Zigbee. (233) to control the sensor module 235. That is, the gateway 225 provides control data related to a wavelength and the like to the control module 231 in order to control pulse width modulation (PWM) of the light emitting devices of the light emitting module 237, and the control data related to temperature and humidity are sensors Processing in association with the module 235, the control data for the power can be provided to the metering module 233. At this time, the gateway 225 facilitates network control by using ID information acquired from the light emitting module 237 in the metering module 233 and the sensor module 235.

The photographing apparatus 227 monitors the state of the house or the plant factory in real time and checks the state of the plant and the abnormality of the light emitting module 237. At this time, the photographing apparatus 227 monitors the state in the plant factory under real time, for example, under the remote control of the control device 200, and then provides the photographing data to the controller 200 so that the state of the plant or the light emitting module 237 can be obtained. Understand the abnormality and take appropriate action when an abnormality occurs. For example, when an abnormality occurs in the light emitting module 237 due to the monitoring of the photographing apparatus 227, the control apparatus 200 contacts the farm manager's mobile phone to repair the module. If control of the state of the plant is required, the farm manager's mobile phone or manager's operating unit 223 can be requested to use the control data stored in the memory of the manager's operating unit 223 to take action. It is.

The voltage providing device 229 may be divided into a plurality of first and second voltage providing devices 229_1 and 229_2. The first voltage providing device 229_1 converts the AC power into a DC voltage and provides the control module 231, and the second voltage providing device 229_2 converts the converted DC voltage into the sensor module 235 and the light emitting module 237. ) Will be provided. Each voltage providing device 229 receives a commercial power of 110 or 220 V and converts it into a DC voltage of about 24 V and drives an integrated circuit (IC) in the control module 231 or the light emitting module 237. The output is converted back to 3.3V DC voltage. To this end, the voltage providing device 229 may include an inverter and a DC-DC converter.

The control module 231 is controlled by the short-range wireless communication with the gateway 225, and receives and drives the DC voltage provided to the first voltage providing device 229_1. In other words, the control module 231 according to the embodiment of the present invention may be provided in a one-to-one correspondence to manage each of the light emitting modules 237 constituting one row. In the row, the light emitting modules 237 in the Nth row may be driven to have the same luminous conditions, but when different crops are grown, they may be driven to the luminous conditions suitable for the crops. For example, the control module 231 controls the dimming of the light emitting module 237 through PWM. Furthermore, the control module 231 controls to provide full color light by grouping red, green, and blue LED elements by color. This will be discussed later.

The metering module 233 is also controlled through the short-range wireless communication with the gateway 225, and the voltage, power, etc. provided from the voltage providing device 229 to the control module 231, the sensor module 235, and the light emitting module 237. The relevant voltage related information is acquired and provided to the control apparatus 200 via the gateway 225 and the wired / wireless sharing apparatus 221 in accordance with the protocol. For example, the metering module 233 measures the AC input power and the total system AC input power of each of the voltage providing devices 229 with a metering sensor, and then digitally converts the measured values to generate and generate voltage related information. The related information may be provided to the control device 200. Thereafter, the metering module 233 performs the power state of the voltage providing device 229 under the control of the gateway 225 based on the control data provided from the manager operating device 223 according to the analysis result of the control device 200. Can be reset. In this way, the metering module 233 can have energy consumption and remote control, as well as minimizing energy consumption through demand reading and demand management, such as protection, monitoring, metering, and diagnostics.

Of course, the metering module 233 outputs the voltage of the voltage providing device 229 under the control of the gateway 225 based on the control data provided from the manager operating device 223 according to the analysis result of the control device 200. It may cut off or selectively provide or cut only the output voltage outputted through a specific path. In addition, the metering module 233 may adjust the level of the voltage provided from the voltage providing device 229 to the control module 231 and the light emitting module 237 according to the control data provided from the manager operating device 223. Can be. If it is assumed that the control module 231 and the light emitting module 237 have been replaced, if the existing voltage output from the voltage providing device 229 was 24 V DC, the voltage is converted to be output to DC 12 V. You can also set the path.

The sensor module 235 includes an illuminance sensor, a concentration sensor (eg, a CO ₂ concentration sensor), a temperature sensor, a humidity sensor, a wavelength sensor, and the like, and by using such various sensors, an optimized environment of a plant can be created. . For example, the sensor module 235 transmits the sensing data acquired through each sensor to the gateway 225, and the gateway 225 provides the data to the control device 200 to provide the control device 200. Under control, the environment within the house or plant can be optimized. In this process, the control device 200 may request the manager operating device 223 to optimize the internal environment of the plant factory according to the analysis result of the sensing data. Alternatively, since the sensor module 235 includes a controller for short-range wireless communication with the gateway 225, an optimized environment may be created by controlling a surrounding blower fan or watering facility, a heater, a humidity valve, and the like under the control of the controller. There will be.

The light emitting module 237 includes first to Nth rows, and the light emitting module 237 constituting each row includes at least one unit to be freely expanded and installed as the plant cultivation area in the plant factory increases. It includes a module, each unit module will have ID information for accurately determining the location of the plant to be grown. For example, even if the light emitting module 237 is extended, the unit modules forming each column may be assembled to be driven in parallel to each other to emit light having the same brightness for each unit module. However, when different crops are cultivated for each row, the unit modules constituting each row are made to accurately determine the location according to ID information and emit light of different luminance.

Each unit module is a light emitting device, for example, red (R), green (G), blue (B) LED or OLED is arranged in an array (array) on a PCB (Printed Circuit Board) and a metal substrate. Such light emitting devices are dimmed under the control of the control module 231. Here, the dimming control is performed by adjusting the duty ratio of the light emitting devices to be turned on and off so that the amount of light emitted from the unit module is adjusted. Means that. For example, if the turn-on time is small, the amount of light emitted is so low that the brightness may be somewhat dark. In addition, the light emitting module 237 may emit light of various colors and various brightness depending on how the light emitting device is driven. For example, if each of the light emitting elements of R, G, and B is driven, light of a single color can be obtained, but if the light emitting elements of R, G, and B are simultaneously driven, the white light is assumed to have the same amount of light. To get it. According to the driving method as described above, the light emitting module 237 implements full color. Substantially, the wavelength and the amount of light are controlled according to the growth state of the cultivated plant as well as the type of cultivated plant.

4 is a circuit diagram illustrating a part of the voltage providing device, the control module, and the light emitting module of FIG. 2.

For convenience of description, in FIG. 4, the control module 231 of FIG. 2 omits the communication module for performing short-range wireless communication with the gateway 225, and the voltage providing device 229 is connected to the metering module 233. The configuration to interlock is omitted. Hereinafter, the light emitting device of the light emitting module 237 will be described on the assumption that the LED.

Referring to FIG. 4 together with FIG. 2, the inverter 300 and the DC-DC converter 310 form part of the voltage providing device 229. Here, the inverter 300 converts the 110 or 220 V commercial power provided from the outside into a DC voltage of 24 V and provides the LED light emitting unit 330, while the DC-DC converter 310 is connected to the inverter 300. The DC voltage level converted by the 24 V is converted into a DC voltage of 3.3 V and output to the driving ICs of the LED controller 320 and the LED light emitting unit 330.

The LED controller 320 constitutes a part of the control module 231, and performs PWM control of the LED elements of the LED light emitting unit 330 under the control of the gateway 225. In such PWM control, the LED controller 320 inputs a synchronous signal to the SCLK1 terminal of the driving IC forming the LED light emitting unit 330 and inputs a data clock to the SDAT1 terminal according to the synchronous signal. do. At this time, the data processing process between the LED controller 320 and the driving IC may be applied to both wired and wireless methods, but in the embodiment of the present invention, a wireless method is more preferable in consideration of facility simplification in a plant factory.

The LED light emitting unit 330 constitutes a part of the light emitting module 237, and may be classified into an LED device and a driving IC for driving a constant current of the LED device. The LED devices are provided with LED elements of R, G, and B in an array on a PCB or a metal substrate to provide full color, and the unit substrate may be formed in various shapes. For example, it may form a plate shape or a rod shape such as a fluorescent lamp. As the unit substrate is easily attached and detached, a plurality of unit substrates may be driven in series with each other as the planting area in the plant factory increases.

In addition, an Rv resistor is inserted into one side of the LED device, and the Rv resistor divides the voltage so that a predetermined voltage is provided for each of the R, G, and B LED devices. For example, assuming that the red LED device is driven at 8 V, since the voltage of 24 V is provided from the inverter 300, the voltage across the Rv resistor inserted to one side of the red LED device must be 16 V only. The device can stably emit light.

The Rv resistance value may be calculated by <Equation 1>.

Equation 1

Where V _ied is the load voltage, V _F is the LED drive voltage, and N is the number of series LEDs.

For example, in Equation 1, when Vied = 24 V, VF = 3.2 V, N = 7, V _DROP =-0.6 V, it can be determined in the range of VDS = 0.7 to 1.2 V, where I _F = 28 mA, so Rv is 21.42 Ω according to Ohm's law. In this way, the resistance value of Rv may be calculated and inserted.

The driving IC may include a full bridge driving circuit, and includes a REF resistor between the ground and the ground. The REF resistor regulates the individual output currents, or constant currents, of R, G, and B depending on the resistance value. In other words, the driving IC is provided with a DC voltage of 3.3 V provided by the DC-DC converter 310 to allow a constant current of 28.66 mA to be provided in the individual LED devices, depending on the resistance value of the REF resistor.

The operating conditions of the driving IC for the constant current control are as shown in <Equation 2>.

Equation 2

In Equation 2, Iout = 28.66 mA and V _REF = 1.21 V, so the resistance of the REF resistor is 38 KΩ.

FIG. 5 is a diagram illustrating a plant cultivation process using LED lighting, and FIG. 6 is a diagram for explaining PWM control.

Referring to FIG. 5 together with FIG. 1, first, the control apparatus 200 receives photographing data photographed through a CCD camera of a photographing apparatus 227 provided in a plant factory (S501) and does not pass through a gateway 225. Voltage-related information provided by the metering module 233 and sensing data sensed by various sensors such as an optical sensor and a humidity sensor included in the sensor module 235 are received and collected (S503, S505, and S507). In this case, the gateway 225, the metering module 233, and the sensor module 235 transmit and receive information and data using short-range wireless communication such as Zigbee, and the information and data received from the gateway 225 are wired / wireless sharing apparatus. It may be provided to the control device 200 through the conversion of information, such as Internet protocol through the (221).

Subsequently, the control apparatus 200 may check a video image acquired through the photographing apparatus 227 to check whether the light emitting module 237 is abnormal and analyze a voltage-related data and sensing data (S509). ). For example, the controller 200 may analyze whether the cultivated plant is being grown through an appropriate photosynthetic wavelength or in a wavelength band for growth. Although there are many wavelengths of light included in the sunlight, since the wavelengths of 420 to 470 nm and 620 to 690 nm have been found to promote photosynthesis, the control apparatus 200 may control the wavelength band. It can further determine whether the green light is from 500 to 560 nm.

As a result of checking the video image, when the light emitting module 237 is abnormal, it can be notified that the abnormality has occurred by contacting the plant factory manager's mobile phone. If there is, the manager may provide the relevant information to the operating device 223 and request an optimization state (S511). Of course, the control device 200 may be notified with a mobile phone of the plant factory manager that the change of the internal environment in the plant factory together with the provision of the relevant information.

In response to the request of the control device 200, the manager operating device 223 extracts the control data stored in the internal memory and provides it to the gateway 225 (S513). The control data selected from the memory may automatically execute a program according to the analysis result provided from the control device 200 to extract related data from the memory and provide the data to the gateway 225, which is provided by an interface with a user. Can be. In this case, the control data is preferably provided to the gateway 225 through short-range wireless communication.

Subsequently, the gateway 225 transmits the corresponding control data to the control module 231 (S515). Of course, since the gateway 225 may transmit the corresponding data to the metering module 233 or the sensor module 235, the gateway 225 is not particularly limited to the transmission to the control module 231 in the embodiment of the present invention.

In this process, for example, the gateway 225 may receive control data from the administrator operating device 223 and analyze the characteristics or characteristics of the data. Here, the characteristic or personality analysis means that the gateway 225 may control the light emitting module 237 where the specific plant is grown because the gateway 225 has ID information of the module for transmitting the corresponding control data. For example, it is a process to specifically control whether wavelength control, voltage control, or cultivation environment such as humidity is to be controlled. Through this, the control module 231, the metering module 233, and the sensor module 235 of the specific cultivation site may be controlled.

When it is determined that control such as wavelength conversion is necessary based on the received control data, the control module 231 performs dimming control of the light emitting devices of the light emitting module 237, for example, the LED devices (S517). In other words, the control module 231 turns on the switching element inside the driving IC to turn on the LED element. If the brightness of the LED is 100%, the control module 231 attaches a variable resistor to reduce the brightness of the LED to 50% by 50%. The brightness can be adjusted by adjusting the voltage to 50% or by lowering the applied voltage by 50%. In the exemplary embodiment of the present invention, as shown in FIG. 6, when a constant pulse is generated as a method of lowering the applied voltage to 50%, the wavelength of the emitted light of the LED is controlled by adjusting the duty ratio. In this way, if the duty ratio is provided to provide a constant pulse, the LED recognizes the average value of the on-time of the pulse and obtains the same effect as if the voltage was applied at 50%. In the process, the LED devices are actually turned on and off tens of thousands of times per second, but the naked eye does not see the instantaneous lighting. The PWM control method is a method of efficiently using light and dark reactions of light. The light reaction relates to the reaction of photosynthesis when light is irradiated, and the negative reaction relates to the generation of carbohydrates when light is not irradiated. Repeating light reactions and rock masses is effective for plant growth and promotion.

As mentioned above, the growth of plants requires the promotion of photosynthesis, but at the same time morphogenesis is an important factor. Morphogenesis here refers to qualitative changes such as seed germination, differentiation of pistil, flowering, young leaf development, chlorophyll synthesis, and seasonal growth. Accordingly, the wavelength of red light for promoting photosynthesis is 620 to 690 nm, and the wavelength of blue light for promoting form formation is 420 to 470 nm. This requires a different wavelength depending on the growth state of the plant and it can be seen that mainly red light and blue are used. In view of this, in the embodiment of the present invention, the desired wavelength range is freely adjusted through PWM control of the light emitting module 237 to form a full color when generating the wavelength region. With PWM control, for example, the desired wavelength and amount of light can be controlled to 100% for red and 20% for blue. As a result, the red light of the LED is 620-690 nm, the blue light is 420-470 nm, and the green light is 500-560 nm.

Wavelength control using PWM dimming of full-color LEDs can provide the optimum amount of light for plants by providing R, G, and B wavelengths only to the wavelengths needed by the plant and removing unnecessary wavelengths. By providing a specific wavelength, it is possible to suppress fungal pests. Table 1 summarizes the light colors and wavelengths, crops, and effects.

Table 1

Light color and wavelength (nm)	crops	effect
Red 660	Leaf, chrysanthemum, strawberry	Photosynthesis promotion, flowering control
Yellow light 570	Apples, Pears and Peaches	Pest control
Green light 530	Cucumber and pepper	Mold Inhibition
Blue light 450	Vegetables, seedlings	Prevention of laughter

On the other hand, the driving method of the device for planting LED lighting according to an embodiment of the present invention is the gateway 225, the voltage providing device 229, the control module 231, described in the system of FIG. Since the functions of the metering module 233, the sensor module 235, and the light emitting module 237 are not different from each other, further description thereof will be omitted.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

In addition, the terms "comprise", "comprise" or "having" described in the specification mean that a corresponding component may be included unless otherwise stated, and thus, other components are excluded. It should be construed that it may further include other components. All terms, including technical and scientific terms, have the same meanings as commonly understood by one of ordinary skill in the art unless otherwise defined. Terms used generally, such as terms defined in a dictionary, should be interpreted to coincide with the contextual meaning of the related art, and shall not be interpreted in an ideal or excessively formal sense unless explicitly defined in the present invention.

Embodiment of the present invention relates to a plant cultivation system and method using LED lighting, LED lighting device for plant cultivation and a method of driving the device. According to an embodiment of the present invention, the network connection and control of the operating device for the manager inside the plant factory and the LED module of the remote branch can be precisely made individually for each cultivated plant to promote plant growth. In addition, it is possible to standardize the LED module used in the plant factory, or the power system and the control system including the LED module can reduce the cost of cultivating plants, thereby increasing the economics of plant cultivation.

(Explanation of the sign)

200: controller 210: communication network

221: wired and wireless sharing device 223: administrator operating device

225: gateway 227: recording device

229: voltage providing device 231: control module

233: metering module 235: sensor module

237: light emitting module 300: inverter

310: DC-DC converter 320: LED controller

330: LED light emitting unit

Claims (10)

1. It includes a sensor for sensing the cultivation environment information of the plant cultivated at an arbitrary place, and provides the data generated by the sensing to the control device for the analysis of the sensing data, based on the analysis result of the sensing data A sensor module for controlling to adjust the cultivation environment by using the control data;

   An administrator operating device for storing the control data for adjusting the cultivation environment as a look-up table and outputting the control data in response to a request provided from the control device based on a result of analyzing the sensing data;

   A gateway for receiving the sensing data from the sensor module and providing the sensing data to the control device, and receiving the control data from the manager operating device and transmitting the control data to a module other than the sensor module and the sensor module; And

   A control module for receiving the control data from the gateway, selecting a color of the LED light irradiated to the plant based on the control data, and dimming controlling the wavelength of the selected LED light to be converted;

   Plant cultivation system using LED lighting, characterized in that it comprises.
2. The method of claim 1,

   Plant cultivation system using the LED lighting further includes a light emitting module,

   The light emitting module includes a plurality of unit modules for irradiating LED light to maintain a different cultivation environment according to the type of the plant, wherein the unit module is an identification (ID) for determining the location of the place where the plant is grown The plant cultivation system using the LED light, characterized in that the information is formed, so as to be coupled to each other as the cultivation area of the plant increases.
3. According to claim 2, The plant cultivation system using the LED lighting,

   A voltage providing device converting an AC voltage into a DC voltage and providing the same to at least one of the control module, the sensor module, and the light emitting module; And

   A metering module for acquiring voltage related information provided from the voltage providing device and providing the voltage related information to the control device and resetting the power state of the voltage providing device using the control data provided based on a result of analyzing the voltage related information;

   Plant cultivation system using LED lighting, characterized in that it further comprises.
4. The method of claim 3,

   Plant cultivation system using the LED light further includes a photographing device,

   The photographing apparatus is a plant cultivation system using the LED light, characterized in that for providing a photographing image taken at the arbitrary place to the control device.
5. The method of claim 4, wherein

   Plant cultivation system using the LED lighting further includes a control device,

   The control device analyzes data received from the photographing device, the metering module, and the sensor module to calculate an analysis result, and requests the output of the control data to the manager operating device based on the analysis result. Plant cultivation system using LED lighting.
6. The method of claim 4, wherein

   The plant cultivation system using the LED lighting further includes a wired and wireless sharing device,

   The wire / wireless sharing device sets a path of the manager operating device, the gateway, and the photographing device according to a request of the control device to process related information.
7. It includes a plurality of unit modules for irradiating the LED light to maintain different cultivation environment according to the type of plants grown in an arbitrary place, wherein the unit module has ID (Identification) information for determining the location of the place A light emitting module formed to be coupled to each other as the cultivation area of the plant increases;

   And a sensor for sensing information about the cultivation environment, and providing the data generated by the sensing to a control device in which the sensing data is analyzed and using the control data provided based on a result of analyzing the sensing data. A sensor module for controlling to adjust the cultivation environment;

   A control module that receives the control data and the ID information provided based on an analysis result of the sensing data and controls dimming to irradiate different LED light from the unit module based on the ID information;

   A voltage providing device configured to receive a commercial power source, convert a DC voltage, and provide the converted DC voltage to at least one of the light emitting module, the sensor module, and the control module; And

   A metering module for acquiring voltage related information provided from the voltage providing device and providing the voltage related information to the control device and resetting the power state of the voltage providing device using the control data provided based on a result of analyzing the voltage related information;

   LED lighting device for plant cultivation, comprising.
8. The method of claim 7, wherein

   The plant cultivation LED lighting device further includes a gateway,

   The gateway receives the control data and transmits to the sensor module, the control module and the metering module by using short-range wireless communication.
9. Sensing cultivation environment information of a plant cultivated at an arbitrary place to generate sensing data, and provide the generated sensing data to a control device that analyzes the sensing data, and is provided based on an analysis result of the sensing data. Controlling at the sensor module to adjust the cultivation environment using control data;

   Storing the control data for adjusting the cultivation environment in the form of a look-up table, and outputting the control data in a manager's operating device in response to a request of the controller based on a result of analysis of the sensing data;

   A gateway (Gateway) receiving the sensing data from the sensor module and providing the sensing data to the control device, and receiving the control data from the administrator operating device and transmitting the control data to a module other than the sensor module and the sensor module; And

   Receiving the control data from the gateway, selecting a color of the LED light irradiated to the plant from the control module based on the control data, and dimming control to perform wavelength conversion of the selected LED light;

   Plant cultivation method using LED lighting, characterized in that it comprises.
10. Irradiating LED light from a plurality of unit modules having identification information for determining an arbitrary place where different kinds of plant cultivation are performed;

    Sensing information about the cultivation environment of the plant is generated to generate sensing data, and the generated sensing data is provided to a control device in which the sensing data is analyzed, and control data provided based on a result of analyzing the sensing data. Controlling to control the cultivation environment;

    Dimming control by receiving the control data and the ID information provided based on the analysis result of the sensing data and irradiating different LED light from the unit module based on the ID information;

    Receives AC power and converts the DC voltage, and provides the converted DC voltage to at least one module of the light emitting module for irradiating the LED light, the sensor module for controlling the cultivation environment and the dimming control module Doing; And

    Acquiring voltage related information provided to the light emitting module, the sensor module and the control module and providing the voltage related information to the control device, and using the control data provided based on an analysis result of the voltage related information, the light emitting module and the sensor. Resetting power provided to the module and the control module.

    Method of driving a LED lighting device for plant cultivation comprising a.

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