CN104661514B - Using the plant cultivation system and its method of LED illumination, plant culture LED light device and its driving method - Google Patents

Abstract

Embodiments of the present invention relate to an LED lighting system for plant cultivation and a plant cultivation method using LED lighting. The LED lighting system for plant cultivation according to an embodiment of the present invention includes: a sensor module, which includes a sensor for sensing the cultivation environment information of a plant cultivated in any place, and transmits the data generated by the above-mentioned perception to the sensor module for analyzing the above-mentioned perception data control device, and use the control data issued based on the analysis results of the above-mentioned sensory data to adjust the above-mentioned cultivation environment; the manager uses the operation device to store the above-mentioned control data for adjusting the above-mentioned cultivation environment in its internal memory in the form of a look-up table, And output the control data according to the request sent by the control device based on the analysis result of the sensory data; the gateway receives the sensory data from the sensor module and transmits it to the control device, and receives the control device from the manager's operation device. The control data is sent to the above-mentioned sensor module and modules other than the above-mentioned sensor module; the control module receives the above-mentioned control data from the above-mentioned gateway, and selects the color of the LED light to be irradiated to the plant according to the above-mentioned control data, and then performs dimming (Dimming ) to change the wavelength of the selected LED light.

Description

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

technical field

Embodiments of the present invention relate to a plant cultivation system using LED lighting and a method thereof, an LED lighting device for plant cultivation and a driving method thereof. In particular, it relates to a method of remotely monitoring the internal state of a plant factory or cultivating plants, or directly controlling and managing them through the Internet or Ethernet, and smoothly connects the operator's operating device with the producer, thereby improving stability and reliability. Plant cultivation system for lighting and method thereof, LED lighting device for plant cultivation and driving method thereof.

Background technique

The content described below is only for providing background information about the embodiments of the present invention, and is not prior art.

Generally, cultivated plants are sown in the soil, then fertilized, watered, and photosynthesis occurs in the plant under sunlight. However, in this cultivation method, the productivity is not only affected by climate change, but also causes both economic cost and environmental problems due to the use of fertilizers or pesticides.

Therefore, recently, focusing on the growth of plants through photosynthesis, the use of artificial light sources, namely LEDs (Light Emitting diodes), to provide the wavelengths required for photosynthesis to promote plant growth, and plant cultivation that is not affected by the climate and does not require pesticide application has been realized. Not only does it increase plant productivity, but it also enables green plant cultivation without the use of pesticides, which has attracted attention.

FIG. 1 is a diagram illustrating the structure of a general plant cultivation greenhouse.

As shown in Figure 1, the structure of a common plant cultivation greenhouse is that a fan is provided in the greenhouse and a frame (F) for installing irrigation facilities. At this time, an LED module (not shown) for providing an artificial light source can be added to the frame (F), and an administrator computer (not shown) for adjusting the temperature, humidity and LED light emission in the greenhouse can be additionally provided. .

However, in this structure, due to the inaccurate network connection and control between the manager's computer inside the plant factory and the LED modules at remote locations, it is difficult to control each plant individually. For example, the wavelength or pulse modulation, duty cycle (Duty Rate), on/off time (On/Off Time), and light intensity (Intensity) of LED modules that promote growth through photosynthesis of cultivated plants cannot be precisely adjusted.

Moreover, there is no standard specification for the LED module used in the plant factory, the control system including the power supply system and the LED module, which leads to an increase in the cost of cultivating plants, and there is a problem that the economic efficiency of cultivating plants decreases.

Contents of the invention

The purpose of the embodiments of the present invention is to provide a plant cultivation system using LED lighting and its method, an LED lighting device for plant cultivation and its driving method, taking into account the wavelength, light, light intensity and light intensity that can promote photosynthesis according to the types of cultivated plants. The brightness is different from each other, and the step-by-step adjustment data of various cultivated plants, each growth period, each time period/day and night are stored in the memory of the operator's operating device in the form of a lookup table, so that the network can be adjusted separately when the user selects the mode. way to promote the growth of cultivated plants.

And, another object is to provide a plant cultivation system and method using LED lighting, LED lighting device for plant cultivation and its driving method, which are designed so that when the length or area of a bed (bed) for plant cultivation increases and the plant cultivation When the area increases, the ease of setting up the LED module can be improved, and the applicability of the LED module increases as the area increases, so that when connecting to the network, the cultivated plants in the same bed can be pulsed at the same time with one identification (Identification) information Width modulation (Pulse Width Modulation) or voltage current regulation.

A plant cultivation system using LED lighting according to an embodiment of the present invention includes: a sensor module, which includes a sensor for sensing the cultivation environment information of a plant cultivated in any place, and transmits the data generated by the above perception to the A control device that senses data, and adjusts the above-mentioned cultivation environment by using the control data issued based on the analysis result of the above-mentioned sensed data; the manager uses the operation device to store the above-mentioned regulation for adjusting the above-mentioned cultivation environment in its memory in the form of a lookup table data, and output the control data according to the request sent by the control device based on the analysis result of the above-mentioned sensory data; the gateway receives the sensory data from the sensor module and transmits it to the control device. Receive the above control data and send it to the above sensor module and modules other than the above sensor module; the control module receives the above control data from the above gateway, and selects the color of the LED light to be irradiated to the plant according to the above control data, and then performs light adjustment (Dimming) to change the wavelength of the selected LED light.

The LED lighting device for plant cultivation according to an embodiment of the present invention includes: a light emitting module including a plurality of unit modules that irradiate LED light, and can maintain different cultivation environments according to the types of plants cultivated in any place, and the above unit modules are equipped with Identification (Identification) information for confirming the position of the above-mentioned place, and can be combined with each other when the cultivation area of the above-mentioned plants increases; the sensor module, which includes sensors for sensing information about the above-mentioned cultivation environment, will generate through the above-mentioned perception The data is transmitted to the control device for analyzing the above-mentioned sensory data, and the control data based on the analysis result of the above-mentioned sensory data is used to adjust the above-mentioned cultivation environment; the control module receives the above-mentioned control data based on the analysis result of the above-mentioned sensory data. and the above-mentioned identification information, and perform light adjustment so that the above-mentioned unit modules irradiate different LED lights according to the above-mentioned identification information; the power supply device receives a common power supply and converts it into direct current, and supplies the converted direct current to the above-mentioned light-emitting module, the above-mentioned at least one of the sensor module, the above-mentioned control module; the metering module, which receives the voltage-related information provided by the above-mentioned power supply device and transmits it to the above-mentioned control device, and uses the above-mentioned regulation data issued based on the analysis result of the above-mentioned voltage-related information, and Reset the power status of the above power supply device.

The plant cultivation method using LED lighting according to the embodiment of the present invention includes: by adjusting the sensor module, sensing the cultivation environment information of the plant cultivated in any place to generate perception data, and transmitting the generated perception data to the sensor for analyzing the above perception The data control device is a step of adjusting the above-mentioned cultivation environment by using the regulation data issued based on the analysis result of the above-mentioned sensing data; The step of outputting the above-mentioned control data from the operator’s operating device in response to the request issued by the above-mentioned control device based on the analysis result of the above-mentioned control device; receiving the above-mentioned sensing data from the above-mentioned sensor module through a gateway (Gateway), and transmitting it to the above-mentioned control device, and receiving the above-mentioned regulation data from the operation device of the above-mentioned manager, and then transmitting it to the above-mentioned sensor module and the steps of modules other than the above-mentioned sensor module; The step of changing the color of the LED light of the above-mentioned plants, and performing dimming to change the wavelength of the selected LED light.

The driving method of an LED lighting device for plant cultivation according to an embodiment of the present invention includes: a step of irradiating LED light from a plurality of unit modules, and the plurality of unit modules are equipped with a device for confirming arbitrary places where different types of plants are cultivated. Identification (Identification) information; sensing the information of the above-mentioned plant cultivation environment to generate sensing data, and transmitting the generated aforementioned sensing data to the control device for analyzing the aforementioned sensing data, and using the control data issued based on the analysis results of the aforementioned sensing data , and the step of adjusting the above-mentioned cultivation environment; the step of receiving the above-mentioned control data and the above-mentioned identification information based on the analysis result of the above-mentioned sensing data, and performing light adjustment so that the above-mentioned unit modules irradiate different LED lights according to the above-mentioned identification information; receiving alternating current and Converting it into a direct current, and supplying the converted direct current to at least one of the light emitting module for irradiating the LED light, the sensor module for adjusting the cultivation environment, and the regulation module for adjusting the light; receiving the voltage-related information transmitted to the above-mentioned light-emitting module, the above-mentioned sensor module, and the above-mentioned control module, and transmitting it to the above-mentioned control device; , the step of the above-mentioned sensor module and the electric power of the above-mentioned regulating module.

According to the embodiment of the present invention, each cultivated plant can be accurately connected and controlled from the operator's operating device inside the plant factory to the LED module at a remote location, thereby promoting plant growth.

Moreover, the LED modules used in the plant factory, or the control system including the field system and its LED modules can be standardized, thereby reducing the factors that increase the cost of plant cultivation and improving the economic efficiency of plant cultivation.

Description of drawings

FIG. 1 is a diagram illustrating the structure of a general plant cultivation greenhouse,

2 is a diagram illustrating a plant cultivation system utilizing LED lighting according to an embodiment of the present invention,

Fig. 3 is an illustration diagram of a remote control program running in the control device of Fig. 2,

Fig. 4 is a circuit diagram illustrating the power supply device, the control module, and the light emitting module of Fig. 2,

5 is a diagram illustrating a plant cultivation process using LED lighting,

FIG. 6 is a diagram for explaining pulse width modulation.

Explanation of reference signs:

200: Control device 210: Communication network

221: Wired and wireless router 223: Operation device for administrator

225: Gateway 227: Photography Installation

229: Power supply 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 part

detailed description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. When marking reference signs, even if the same technical features appear in different drawings, the same reference signs are used as far as possible. At the same time, it should also be noted that throughout the specification, if it is considered that the specific description of related known technical features and functions may make the subject matter of the present invention unclear, the detailed description will be omitted.

Furthermore, terms such as first, second, A, B, (a), and (b) may be used when describing the present invention. These terms are only used to distinguish corresponding technical features from other technical features, and do not limit their essence, order or sequence, etc. If the description records that a technical feature is "connected", "combined" or "contacted" with another technical feature, it can be understood as a direct connection or contact between a technical feature and another technical feature, or it can also be understood as that there is another technical feature between the technical features. A technical feature is "connected", "incorporated" or "in contact with" it.

FIG. 2 is a diagram illustrating a plant cultivation system using LED lighting according to an embodiment of the present invention, and FIG. 3 is an illustration diagram of a remote control program running in the control device of FIG. 2 .

As shown in Figure 2, the plant cultivation system using LED lighting according to the embodiment of the present invention includes: a control device 200 outside the plant factory, a communication network 210, and a wired and wireless router 221 constituting the internal system of the plant factory. Part or all of the operating device 223 , the gateway 225 , the photographing device 227 , the power supply device 229 , the control module 231 , the metering module 233 , the sensor module 235 , and the light emitting module 237 .

Here, some or all of the wired and wireless router 221, the manager's operating device 223, the gateway 225, the camera device 227, the power supply device 229, the control module 231, the metering module 233, the sensor module 235, and the light emitting module 237 that constitute the internal system of the plant factory All of them can be called LED lighting devices for plant cultivation.

The control device 200 is, for example, a comprehensive computer device installed in a specific company or university, for example, it can run the IFD processing program and the remote control special program as shown in FIG. 3(a) and FIG. 3(b). Accordingly, the environment in the plant factory where plants are being cultivated can be monitored in real time, and the color temperature of the light-emitting elements arranged in the light-emitting module 237 in the plant factory, such as LEDs, can be set. Moreover, the camera device 227 can be controlled remotely by using a network protocol like TCP/IP, and the data sent by the camera device 227 and the sensor module 235 arranged in the plant factory can be collected.

Here, the color temperature of the light-emitting element can be set in units of pixels or pixel blocks. A pixel is a unit of combining R, G, and B, and a pixel block is a unit of combining multiple pixels.

The control device 200 analyzes data collected from, for example, the camera device 227, the measurement module 233, and the sensor module 235, thereby specifically confirming the growth conditions of the plants being cultivated. If, if you judge some or all of the temperature, humidity, light intensity, wavelength, power, current, voltage, etc. in the plant factory, and feel that the internal environment is not suitable, you will notify the manager with the operating device 223, and according to The regulatory data maintains an optimal environment. During this process, the control device 200 can transmit relevant information to the user terminal managing the plant factory, where the terminal includes a mobile phone and the like.

The communication network 210 is used to connect the control device 200 installed outside the plant factory and the wired and wireless router 221 inside the plant factory. The communication network 210 includes a wired and wireless communication network, and is preferably the Internet. As a wireless communication network, it may include a network such as a CDMA network, a WCDMA network, a GSM network, and a next-generation mobile communication system that will be realized in the future.

The wired and wireless router 221 is to enable wired and wireless communication between the control device 200 and the manager's operation device 223, or between the control device 200 and the camera device 227, and to perform the process of converting signals or information, and can run for managers in the plant factory. The operating device 223 and the imaging device 227 etc. perform a search route setting program. For example, the information sent by the control device 200 through the network protocol is converted into the same wireless protocol as cellular (Zigbee) and wireless fidelity (Wifi) in the wired and wireless router 221, and then transmitted to the manager with the operating device 223 or the camera device 227, The reverse is also the same.

The operating device 223 for a manager is, for example, a computer provided in a greenhouse or a plant factory for plant cultivation, and includes a memory in the form of a lookup table (Lookup Table). In the internal memory, the control data is saved, that is, information about light quantity, temperature, humidity, light intensity, wavelength and carbon dioxide concentration, power, current, voltage, etc., according to the user interface to the control module 231, metering module 233, sensor module 235 Different regulatory information is conveyed for each plant. For example, if the control device 200 sends out any request to the manager with the operation device 223, the user of the manager with the operation device 223 selects the control data that meets the specific situation and transmits it to the gateway 225 according to the request, and the gateway 225 Then the data is sent to the control module 231 , the metering module 233 , and the sensor module 235 .

The gateway 225 includes an LCD gateway, which receives the adjustment data suitable for the user interface sent by the administrator with the operating device 223, and communicates with the adjustment module 231, the metering module 233, and the sensor through a short-distance communication network like a cellular (Zigbee). Module 235 performs regulation. That is, the gateway 225 transmits control data about the wavelength and the like to the control module 231 in order to perform pulse width modulation on the light-emitting elements of the light-emitting module 237, and transmits control data about temperature and humidity to the sensor module 235 for processing. The control data is sent to the metering module 233 . At this time, the gateway 225 uses the identification information collected from the light emitting module 237 in the metering module 233 and the sensor module 235, so as to be able to control the network smoothly.

The camera device 227 monitors the state of the greenhouse or plant factory in real time, and detects the state of the plant and whether the light emitting module 237 is abnormal or not. At this time, the photographing device 227, for example, monitors the internal state of the plant factory in real time under the remote control of the control device 200, and then transmits the photographed data to the control device 200, thereby confirming the state in the plant factory or whether the light emitting module 237 is abnormal. Appropriate measures will be taken if abnormalities are found. If, as a result of monitoring by the photographing device 227, an abnormality occurs in the light-emitting module 237, the control device 200 will contact the farm manager's mobile phone, etc., to repair the module. If it is necessary to regulate the state of the plant, an invitation is sent to the mobile phone of the farm manager or the manager uses the operating device 223, and the control data stored in the manager's operating device 223 memory is used to handle the situation.

The power supply device 229 can be divided into a plurality of first and second power supply devices 229_1 and 229_2. The first power supply device 229_1 converts AC power into DC power and transmits it to the regulation module 231 , and the second power supply device 229_2 transmits the converted DC power to the sensor module 235 and the light emitting module 237 . Each power supply device 229 receives a 110V or 220V common power supply and converts it into a DC power of about 24V, and then converts it into a DC power of about 3.3V for driving the integrated circuit (IC) in the control module 231 or the light emitting module 237 and then outputs it. For this purpose, the power supply device 229 may include a frequency converter and a DC-DC converter.

The regulation module 231 is regulated by the gateway 225 and the short-range wireless communication network, and is driven by receiving the direct current output by the first power supply device 229_1 . In other words, the control module 231 according to the embodiment of the invention can be set in a one-to-one ratio in order to be able to separately manage the light-emitting modules 237 constituting a column, and can be designed to be regulated according to the gateway 225. The light-emitting modules 237 in the first column to the N-th column It has the same lighting conditions, but if different plants are cultivated, it can drive the lighting conditions suitable for the crops. Suppose, the regulating module 231 performs dimming on the light emitting module 237 through pulse width modulation or the like. Furthermore, the regulation module 231 can uniformly regulate the red, green and blue LED elements according to each color, so as to provide full-color light. The relevant content will be explained below.

The metering module 233 is also regulated through the gateway 225 and the short-distance wireless communication network. It collects voltage-related information such as voltage and power transmitted from the power supply device 229 to the regulation module 231, sensor module 235, and light-emitting module 237, and passes through the gateway according to the protocol. 225 and the wired and wireless router 221 to the control device 200. For example, the metering module 233 uses a metering sensor to measure each input AC power of the power supply device 229 and the input AC power of the overall system, converts the measured values into digital numbers to generate voltage-related information, and transmits the generated voltage-related information to the control device 200 . Then, the metering module 233 resets the power state of the power supply device 229 through the control gateway 225 based on the control data provided to the operator's operation device 223 according to the analysis result of the control device 200 . In this way, the metering module 233 can minimize energy consumption through remote detection and supply and demand management, and can perform idle power confirmation and management functions in terms of power supply, such as maintenance, monitoring, metering, and diagnosis.

Of course, the metering module 233 can cut off the voltage output by the power supply device 229 through the regulation gateway 225 according to the regulation data transmitted by the manager with the operation device 223 based on the analysis result of the control device 200, or selectively transmit or cut off the voltage output by a specific The output voltage of the circuit output. And the metering module 233 can adjust the magnitude of the voltage supplied from the power supply device 229 to the regulating module 231 and the light emitting module 237 according to the regulating data provided by the operator using the operating device 223 . The control module 231 and the light-emitting module 237 are updated, and the previous voltage output from the power supply device 229 is 24V direct current, the voltage conversion circuit will be turned on to make it output 12V direct current.

The sensor module 235 includes: a light intensity sensor, a concentration sensor (for example, a carbon dioxide concentration sensor), a temperature sensor, a humidity sensor, a wavelength sensor, etc. By using such a variety of sensors, an optimal environment for cultivating plants can be formed. For example, the sensor module 235 transmits the sensing data collected by each sensor to the gateway 225, and the gateway 225 provides the data to the control device 200, and through the control of the control device 200, an optimal environment is formed inside the greenhouse or plant factory. During this process, the control device 200 can issue a request to the manager using the operation device 223 to optimally regulate the internal environment of the plant factory etc. according to the analysis result of the sensory data. And the sensor 235 includes a control unit for short-distance wireless communication with the gateway 225. Through the control of the control unit, the surrounding fans or irrigation facilities, heaters or humidity control valves can be adjusted to form an optimal environment.

The light-emitting module 237 has the first column to the Nth column, forming the light-emitting module 237 of each column, in order to be able to expand and set at will with the increase of the plant cultivation area in the plant factory, including at least one unit module, and each unit module In order to confirm the cultivation The location of the plant has identification information. For example, even if the light emitting module 237 is expanded, the unit modules constituting each column are driven in parallel, so that each unit module can emit light with the same luminance. However, if different plants are cultivated in each row, the unit modules forming each row can accurately confirm their positions according to the identification information, and emit lights with different luminances.

Each unit module is formed by arraying light-emitting elements such as red, green, and blue LEDs or organic light-emitting diodes (OLEDs) on a printed circuit board (Printed Circuit Board) and a metal substrate. This light-emitting element is adjusted according to the regulation of the regulation module 231, where dimming means adjusting the duty cycle of the light-emitting element on and off, and driving pulse width modulation, thereby adjusting the light emission of the light emitted by the unit module. quantity. If the lighting time is short, the amount of luminous light will decrease accordingly, so the brightness will be dimmed. And according to how the light emitting module 237 drives the light emitting elements, it can emit light of various colors and brightness. For example, if the red, green, and blue light-emitting elements are driven separately, monochromatic light can be emitted, but if the red, green, and blue light-emitting elements are driven simultaneously, white light will be emitted with the same amount of light. Through this driving method, the light emitting module 237 can display full color. In fact, the wavelength and the amount of light can be adjusted not only according to the type of cultivated plants, but also according to the growth state of cultivated plants.

FIG. 4 is a circuit diagram showing a part of the power supply device, the control module and the light emitting module in FIG. 2 .

For the convenience of illustration, in FIG. 4 , the communication module used for short-distance wireless communication between the control module 231 and the gateway 225 in FIG. 2 is omitted, and the linkage structure of the power supply device 229 and the metering module 233 is omitted. Next, the case where the light-emitting element of the light-emitting module 237 is an LED is described.

Referring to FIG. 4 and FIG. 2 , the frequency converter 300 and the DC-DC converter 310 constitute a part of the power supply device 229 . Here, the frequency converter 300 converts the 110V or 220V common power from the outside into 24V DC power, and transmits it to the LED light emitting part 330. On the contrary, the DC-DC converter 310 reconverts the 24V DC power transformed by the frequency converter 300. into 3.3V direct current, and transmit it to the driving circuit of the LED controller 320 and the LED light emitting part 330.

The LED controller 320 constitutes a part of the control module 231 , and performs pulse width modulation on the LED elements of the LED light emitting part 330 according to the control of the gateway 225 . When pulse width modulation is performed in this way, the LED controller 320 inputs a synchronous signal to the serial clock (SCLK1) port of the drive circuit constituting the LED light emitting unit 330, thereby inputting a data clock to the serial clock (SCLK1) port based on the synchronous signal. Perform pulse width modulation. At this time, the data processing process between the LED controller 320 and the driving circuit can adopt a wired and wireless method, but in the embodiment of the present invention, considering the simplicity of the facilities in the plant factory, it is better to use a wireless method.

The LED light emitting part 330 constitutes a part of the light emitting module 237 and can be divided into an LED element and a driving circuit for driving the LED element with a constant current. LED elements are formed by arraying red, green, and blue LED elements for providing full color on a printed circuit board or a metal substrate, and the unit substrate can be formed in various shapes. For example, it can be formed in a plate shape or a rod shape like a fluorescent lamp. This kind of unit substrate can be easily disassembled and assembled, so that according to the increase of the cultivation area in the plant factory, a plurality of them can be connected in series and then driven.

In addition, a variable resistor (Rv) is inserted on the side of the LED element, and the variable resistor functions as a voltage divider in order to supply a predetermined voltage to each red, green, and blue LED element. For example, assuming that 8V is required to drive a red LED element, since the inverter 300 outputs a voltage of 24V, the voltage across the variable resistor inserted on the side of the red LED element should be 16V, only in this way will the LED element emit light stably .

The variable resistance value can be calculated according to the following mathematical formula 1.

Mathematical formula 1

VDS＝ _Vied- V _F ×NV _DROP

Here, _Vied is the load voltage, V _F is the LED driving voltage, and N is the number of LEDs connected in series. Suppose, in Mathematical Formula 1, when _Vied = 24V, VF = 3.2V, N = 7, V _DROP = -0.6V, then VDS = 0.7 ~ 1.2V, at this time because I _F = 28mA, so according to Ohm's law The calculated variable resistance is 21.42Ω. Calculate the resistance value of the variable resistor (Rv) in the same way and insert it.

The driving circuit may include a full bridge driving circuit including a reference (REF) resistor to ground. The reference resistor can adjust the output currents of red, green, and blue according to the resistance value, that is, constant current. In other words, the driving circuit receives the 3.3V DC power from the DC-DC converter 310 , and sends a constant current of 28.66 mA to each LED element, for example, according to the resistance value of the reference resistor.

The operating conditions of the drive circuit for adjusting the constant current are shown in Mathematical Expression 2 below.

Mathematical formula 2

Iout[mA]＝( _VRER [V]×900)/REF[Ω]

Referring to Mathematical Formula 2, since Iout=28.66mA and V _REF =1.21V, the resistance value of the reference resistor is 38KΩ.

FIG. 5 is a diagram illustrating a plant cultivation process using LED lighting, and FIG. 6 is a diagram for explaining pulse width modulation.

Referring to Fig. 5 and Fig. 1, at first the control device 200 receives the photographic data-S501 taken by the charge-coupled device (CCD) camera of the photographic device 227 in the plant factory, and accepts and collects the data sent by the metering module 233 through the gateway 225. Voltage-related information and sensing data sensed by various sensors such as an optical sensor and a humidity sensor provided in the sensor module 235 - S503 , S505 , and S507 . At this time, the gateway 225, the metering module 233 and the sensor module 235 send and receive information and data through a short-distance wireless communication network like a honeycomb, and the information and data received at the gateway 225 are converted by the wired and wireless router 221 through network protocols, etc., and sent to Control device 200.

Next, the control device 200 confirms the image received by the photographing device 227, and confirms whether the light emitting module 237 is abnormal, and analyzes the voltage-related data and sensing data—S509. For example, the control device 200 can analyze whether the cultivated plants are subjected to the appropriate photosynthetic wavelength, and whether they are in a wavelength range that is convenient for growth. There are many wavelengths of light contained in sunlight, but it has been proven that the wavelengths of 420-470nm and 620-690nm can promote photosynthesis, so the control device 200 analyzes whether it remains in this wavelength range, and then judges whether the green light is in the range of wavelengths. 500-560nm range.

When it is found that the light-emitting module 237 is abnormal as a result of confirming the image, it will contact the mobile phone of the plant factory manager to inform that the abnormality has occurred, but if the result of analyzing the voltage-related data and sensory data needs to change the internal environment of the factory, the relevant information will be transmitted. Go to the operation device 223 for the manager, and ask him to keep it in the best state-S511. Of course, the control device 200 not only provides relevant information, but also notifies the cell phone of the plant factory manager that the internal environment of the plant factory needs to be replaced.

According to the request of the control device 200, the manager uses the operation device 223 to extract the control data stored in the memory, and transmits it to the gateway 225-S513. The control data selected in the memory can automatically run the program based on the analysis result sent by the control device 200, and extract relevant data in the memory, and send it to the gateway 225, or send it through the user interface. At this time, the control data is preferentially transmitted to the gateway 225 through short-range wireless communication.

Then the gateway 225 transmits the control data to the control module 231 - S515. Of course, the gateway 225 can also transmit the data to the metering module 233 or the sensor module 235 during this process, so the embodiment of the present invention is not limited to only transmitting the data to the regulation module 231 .

In this process, for example, the gateway 225 receives control data from the operator's operating device 223 and analyzes the characteristics or properties of the data. The so-called feature or property analysis here means that because the gateway 225 has the identification information of the module used to transmit the control data, it can adjust the light-emitting module 237 in the place where a specific plant is being cultivated, and further control such as, adjust the wavelength, adjust voltage, or regulate the cultivation environment like humidity. Accordingly, the regulation module 231 , the metering module 233 and the sensor module 235 located in a specific cultivation site can be regulated.

When the control module 231 judges that it needs to adjust the wavelength etc. based on the received control data, it will adjust the light of the light emitting elements of the light emitting module 237, such as LED elements - S517. In other words, the control module 231 turns on the switch element located in the drive circuit to light the LED element. If it is assumed that the brightness of the LED is 100% at this time, in order to adjust the brightness of the LED to 50%, a variable resistor is added to achieve 50%. %, or reduce the input voltage by 50% to adjust the brightness. The embodiment of the present invention is shown in FIG. 6 . By reducing the input voltage to 50%, when a certain pulse is generated, the duty cycle is adjusted to adjust the wavelength of light emitted by the LED. By adjusting the duty cycle in this way to provide a certain pulse, the LED will regard the on-time of the pulse as the average value, thus obtaining the same effect as applying 50% voltage. During this process, the LED components actually switch tens of thousands of times per second, but the naked eye cannot see the instantaneous lighting. This pulse width modulation method can effectively use the photoreaction of light, and the carbon reaction that produces photosynthetic reaction when light is irradiated, and the carbon reaction that produces carbohydrates when no light is irradiated. Repeating this light reaction and carbon reaction is very effective for the growth and promotion of plants.

As mentioned above, plant growth needs to promote photosynthesis, and morphogenesis is also a very important factor. Here morphogenesis refers to qualitative changes such as seed germination, petal opening, flowering, young leaf unfolding, chlorophyll synthesis, and growth between seasons. Therefore, the wavelength of red light used to promote photosynthesis is 620-690nm, and the wavelength of blue light used to promote morphogenesis is 420-470nm. It can be seen that the required wavelengths differ depending on the growth state of plants, and red light and blue light are mainly used. Considering this point, in the embodiment of the present invention, when forming the wavelength range, in order to form full color, the pulse width modulation of the light emitting module 237 is performed, and the desired wavelength range can be freely adjusted. Through pulse width modulation, red can be adjusted to 100%, blue can be adjusted to 20%, and the required wavelength and light quantity can be adjusted. As a result, the red light of the LED is set at 620 to 690 nm, the blue light at 420 to 470 nm, and the green light at 500 to 560 nm.

The wavelength adjustment using the pulse width modulation of full-color LEDs can only provide the required red, green, and blue wavelengths according to the plants, and remove the excess wavelengths, so that the plants can be provided with the optimal amount of light. Mold and pests can be suppressed by providing specific wavelengths. Table 1 shows the collation results of light color and wavelength, crops, and effects.

Table 1

In addition, the driving method of the LED lighting device for plant cultivation according to the embodiment of the present invention is similar to the gateway 225, the power supply device 229, the control module 231, the metering module 233, the sensor described in the system in FIG. The functions of the module 235 and the light emitting module 237 are the same, so repeated descriptions are omitted.

The above description is only an illustration of the technical idea of the present invention, and those who have ordinary knowledge in the technical field of the present invention can make various modifications and deformations within the scope not exceeding the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not used to limit the technical idea of the present invention, but are only used for illustration, so the scope of the technical idea of the present invention is not limited to these embodiments. The protection scope of the present invention should be interpreted according to the claims, and it should be interpreted as that all technical ideas within the equivalent range should be included in the scope of the present invention.

In addition, terms such as "comprising", "constituting" or "having" described in the specification mean that the component is incorporated unless there is a specific statement to the contrary, and should be interpreted as not excluding other components that may also include other components. All terms including technical or scientific terms shall be interpreted as the same meaning as commonly understood by a person having ordinary knowledge in the technical field to which the present invention pertains, unless there are different definitions. Commonly used words such as words defined in dictionaries should be interpreted as meanings consistent with the context of related technologies, and should not be interpreted as unrealistic or exaggerated meanings when they are not clearly defined in the present invention.

Embodiments of the present invention relate to a plant cultivation system and method using LED lighting, an LED lighting device for plant cultivation and a driving method thereof. According to the embodiment of the present invention, through the network connection and control from the operator's operating device inside the plant factory to the LED module at a remote location, it can be accurately performed for each cultivated plant to promote plant growth. Moreover, the LED modules used in the plant factory, or the control system including the pastoral system and its LED modules can be standardized, thereby reducing the factors that increase the cost of plant cultivation and improving the economic efficiency of plant cultivation.

Claims (10)

1. a kind of plant cultivation system of utilization LED illumination, it is characterised in that including：

Sensor assembly, it includes the sensor for perceiving the cultivation of plants environmental information in arbitrary site's cultivation, will be logical The data for crossing said sensed generation are sent to control device for analyzing said sensed data, and using being based on said sensed number According to the regulation and control data that send of analysis result, and adjust above-mentioned planting environment；

Manager's operation device, the above-mentioned regulation and control for adjusting above-mentioned planting environment are preserved by form of look in its internal memory Data, and to be asked by what above-mentioned control device sent according to the analysis result based on said sensed data, and export above-mentioned regulation and control Data；

Gateway, receives said sensed data and is sent to above-mentioned control device from the sensor module, is used from above-mentioned manager Operation device receives above-mentioned regulation and control data and is sent to the sensor module and the module in addition to the sensor module； And

Regulation and control module, receives above-mentioned regulation and control data, and to be irradiated to plant according to the selection of above-mentioned regulation and control data from above-mentioned gateway The color of LED light, then dimmed and changed the wavelength of selected above-mentioned LED light.

2. the plant cultivation system of utilization LED illumination according to claim 1, it is characterised in that

Also include light emitting module, and above-mentioned light emitting module includes multiple single-bit modules of irradiation LED light, so that according in any field The floristics cultivated maintains different planting environments, above-mentioned single-bit module to possess the field that above-mentioned plant is cultivated for confirmation Position identification information, and be combined with each other when the increase of above-mentioned cultivation of plants area.

3. the plant cultivation system of utilization LED illumination according to claim 2, it is characterised in that also include：

Electric supply installation, it converts alternating current to direct current and is sent to above-mentioned regulation and control module, the sensor module, above-mentioned hair At least one of optical module module；And

Metering module, it collects the voltage relevant information sent by above-mentioned electric supply installation, and is sent to above-mentioned control device, utilizes The above-mentioned regulation and control data that analysis result based on above-mentioned voltage relevant information sends, and reset the electric power of above-mentioned electric supply installation State.

4. the plant cultivation system of utilization LED illumination according to claim 3, it is characterised in that also including camera, The shooting image shot in above-mentioned arbitrary site is sent to above-mentioned control device by above-mentioned camera.

5. the plant cultivation system of utilization LED illumination according to claim 4, it is characterised in that

Also include control device, above-mentioned control device analysis are from above-mentioned camera, above-mentioned metering module, the sensor module The data for receiving, Calculation results, and sent with operation device to above-mentioned manager based on above-mentioned analysis result and to ask and defeated Go out above-mentioned regulation and control data.

6. the plant cultivation system of utilization LED illumination according to claim 4, it is characterised in that

Also include wired wireless router, above-mentioned wired wireless router will ask the above-mentioned management of setting according to above-mentioned control device Person with operation device, above-mentioned gateway, above-mentioned camera path, and processing relevant information.

7. a kind of plant culture LED light device, it is characterised in that including：

Light emitting module, its multiple single-bit module for including irradiation LED light are maintained not according to the floristics cultivated in arbitrary site Same planting environment, and above-mentioned single-bit module possesses the identification information for confirming the position in above-mentioned place, and when above-mentioned plant It is be combined with each other during the increase of the cultivated area of thing；

Sensor assembly, it includes the sensor for perceiving the information on above-mentioned planting environment, will be given birth to by said sensed Into data be sent to control device for analyzing said sensed data, and using the analysis result based on said sensed data The regulation and control data for sending, and adjust above-mentioned planting environment；

Regulation and control module, receives above-mentioned regulation and control data and above-mentioned identification letter that the analysis result based on said sensed data sends Breath, and dimmed so that above-mentioned single-bit module irradiates different LED lights according to above-mentioned identification information；

Electric supply installation, receives conventional power supply and converts thereof into direct current, and the above-mentioned direct current changed is supplied to above-mentioned luminous At least one module in module, the sensor module, above-mentioned regulation and control module；

Metering module, it is collected the voltage relevant information that is provided by above-mentioned electric supply installation and sends it to above-mentioned control device, The above-mentioned regulation and control data sent using the analysis result based on above-mentioned voltage relevant information, and reset above-mentioned electric supply installation Power state.

8. plant culture LED light device according to claim 7, it is characterised in that

Also include gateway, above-mentioned gateway receives above-mentioned regulation and control data, and sends it to above-mentioned biography by wireless near field communication Sensor module, above-mentioned regulation and control module, above-mentioned metering module.

9. a kind of plant cultivation method of utilization LED illumination, it is characterised in that including：

By adjusting sensor assembly, perceive and generate perception data in the cultivation of plants environmental information of arbitrary site's cultivation, The perception data that will be generated is sent to the control device for analyzing said sensed data, using based on said sensed data The regulation and control data that analysis result sends, and the step of adjust above-mentioned planting environment；

The above-mentioned regulation and control data for adjusting above-mentioned planting environment are preserved in internal memory by form of look, according to based on above-mentioned sense The analysis result of primary data and to be asked by what above-mentioned control device sent, and export above-mentioned regulation and control number with operation device from manager According to the step of；

Said sensed data are received from the sensor module by gateway, and above-mentioned control device is sent it to, and from upper State manager and receive above-mentioned regulation and control data with operation device, then send it to the sensor module and except the sensor The step of module beyond module；

Above-mentioned regulation and control data are received by above-mentioned gateway, regulation and control module is based on the selection of above-mentioned regulation and control data and to be irradiated to above-mentioned plant LED light color, and the step of dimmed and changed the wavelength of selected above-mentioned LED light.

10. a kind of driving method of plant culture LED light device, it is characterised in that including：

Possessed for not of the same race to cultivating by the step of multiple single-bit module irradiation LED light, and above-mentioned multiple single-bit modules The identification information that the arbitrary site of class plant is confirmed；

Perceive the information of above-mentioned plant culture environment and generate perception data, and the said sensed data that will be generated are sent to use In analysis said sensed data control device, the regulation and control data sent using the analysis result based on said sensed data, and The step of adjusting above-mentioned planting environment；

Above-mentioned regulation and control data and above-mentioned identification information that the analysis result based on said sensed data sends are received, and is adjusted Light is so that the step of above-mentioned single-bit module irradiates different LED lights according to above-mentioned identification information；

Receive alternating current and convert thereof into direct current, and the above-mentioned direct current changed is supplied for irradiating above-mentioned LED light Light emitting module, the sensor assembly for adjusting above-mentioned planting environment and in the regulation and control module for carrying out above-mentioned light modulation to The step of few module；

The voltage relevant information for being sent to above-mentioned light emitting module, the sensor module and above-mentioned regulation and control module is collected, and will It is sent to above-mentioned control device, the above-mentioned regulation and control data sent using the analysis result based on above-mentioned voltage relevant information, weight The step of new settings supplies the electric power of above-mentioned light emitting module, the sensor module and above-mentioned regulation and control module.