KR20130142230A - Lighting system for cultivation of plants in indoor space - Google Patents

Abstract

The present invention relates to a lighting system for the cultivation of plants, more specifically a lighting system for the cultivation of plants which provides light necessary for the growth and photosynthesis of plants, uniformly emits light to the plants in indoor environment for growing the plants including a botanical garden or a plastic greenhouse, optimizes the cultivation environment of the plants regardless of the season and the change of location by controlling the wavelength, the intensity of radiation, and the emission angle of a lighting, and enables users to effective manage the growth of various kinds of plants.

Description

Lighting system for cultivation of plants in indoor space}

The present invention relates to a lighting system for plant cultivation, and more particularly, to an illumination system that provides light for plant growth and photosynthesis, so that light is uniformly radiated to plants in an indoor environment where plants are grown, such as a botanical garden or a vinyl house. However, by controlling the wavelength of light, quantity of light, irradiation angle, etc. according to the growth characteristics of each plant, it is possible to optimize the growing environment of plants without affecting the change of seasons or places and to efficiently grow various kinds of plants. A lighting system for plant cultivation that enables management.

In general, in order to grow plants, light, water, temperature, air, and soil (nutrients) necessary for plant growth are basically required. In particular, since plants use the carbohydrates synthesized through photosynthesis as energy sources, it is important to provide light.

For example, in the process of growing a plant indoors, such as a botanical garden or a vinyl house, if the plant does not receive light, it cannot grow photosynthesis because it cannot make photosynthesis, and if it does not receive enough light, the color of the leaves will be lost. It is necessary to irradiate light uniformly because it causes problems such as leaves falling well or flowers before it grows thinner and thinner.

However, the light of all wavelengths irradiated to these plants is not useful for photosynthesis of the plant, so the amount of light or wavelength required for each plant may be different, and even the same plant may have an appropriate amount of light or wavelength for each growth process such as leaves, stems, and fruits. Photosynthesis is efficiently performed at.

Accordingly, there is a difficulty in cultivating a plant in an optimal state without providing an environment capable of appropriately controlling the amount of light or wavelength band according to the type or growth time of each plant.

The present invention is to solve the above problems, in the cultivation of plants indoors, such as a botanical garden or a plastic house, having a variety of light sources close to the sunlight to meet the growth characteristics of each plant The present invention provides an illumination system for plant cultivation that enables to uniformly irradiate and control the growth of plants efficiently by controlling the light quantity, wavelength, and irradiation angle of illumination in an optimal state.

Another object of the present invention is to optimize the light absorption of the plant and to minimize the loss of light to make efficient use of light.

Still another object of the present invention is to eliminate the need for a separate wiring for communication control of lighting, to facilitate installation and management, and to efficiently use power.

Plant cultivation lighting system according to the present invention to achieve the above object, the lighting device; A local control device for controlling and controlling the lighting device; And it is characterized in that it comprises a sensor module for measuring the environmental conditions such as temperature, humidity, illuminance, CO2 to monitor the environment of the plantation and transmit to the local control device.

An LED control unit (LCU), an LED module (5 channels), a local controller and a power line communication module are mounted in the lighting device, and the LED module is turned on and dimmed by downloading lighting control data transmitted from the local controller from the LED controller. (dimming) control.

Local control device is a PC-based system that provides lighting for plant cultivation by programming environmental data collected through sensor module and lighting data for plant cultivation and transmitting it to lighting device.

The sensor module measures environmental conditions such as temperature, humidity, illuminance and CO2 through each measuring probe, processes the measured data information, and transmits the collected environmental data to the local control device through the power line communication module.

According to the plant cultivation lighting system of the present invention, it is possible to generate the light closest to the sunlight, such as red, blue, white, ultraviolet, infrared light, and to control the pulse width modulation dimming (Pulse Width Modulation Dimming) independently of the five wavelengths By controlling the light output of each wavelength according to the characteristics of the plant by adjusting the appropriate brightness through these five kinds of LED lighting is less influenced by changes in seasons and places, and stably required for the growth of each plant (crop) By providing a mixture of sunlight and LED light, it has the advantage of efficient production by controlling the growth rate of various kinds of plants.

In addition, the five kinds of LED lights are sequentially controlled to be lit and optimized for the absorption wavelength and the lighting frequency of the plants, so that the power for plant cultivation can be efficiently used, and the illumination is measured by a sensor measuring an external environmental change. Data such as temperature, humidity, and CO 2 can be collected and optimized light can be controlled by feedback control.

In addition, the lighting angle is limited to within 50 to 100 degrees to prevent light from being distributed or diffused to an unnecessary place, and to concentrate light on cultivated plants. By adjusting the light irradiation angle of the electric light according to the can be irradiated with light at the optimum angle.

In addition, it is easy to install and manage by adopting a method (PLC: Power Line Communication) to communicate through power wiring without installing a separate wiring for communication control.

1 is a schematic view showing a lighting system of the present invention

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the technical idea of the present invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein.

Referring to the drawings, the lighting system for plant cultivation according to a preferred embodiment of the present invention, the lighting device 10; A local control device 20 for controlling and controlling the lighting device; And it is characterized in that it comprises a sensor module 30 for measuring the environmental conditions such as temperature, humidity, illuminance, CO2 to monitor the environment of the plantation and transmit to the local control device.

The lighting device 10 controls the brightness of five LED lightings applied to plant cultivation such as red (R), blue (B), white (W), ultraviolet (UV), and infrared (IR). It is to control the amount of light value required for each plant (crop) through communication with.

Local control device 20 is a PC-based system to provide the lighting necessary for plant cultivation by programming the environmental data collected through the sensor module and the lighting data necessary for plant cultivation to transmit to the lighting device.

The sensor module 30 measures environmental conditions such as temperature, humidity, illuminance and CO2 through each measuring probe, and processes the measured data information to collect the environmental data collected by the local control device through the power line communication module. send.

This will be described in more detail as follows.

An LED control unit (LCU), an LED module unit (5 channels), a local control unit and a power line communication unit are mounted inside the lighting device 10. The LED module is turned on by downloading lighting control data transmitted from the local control unit from the LED control unit. And dimming control.

That is, the device for controlling the five-channel LED lamp is composed of LMD, LCU, LDU, SMPS, and the unit of each configuration should be designed in such a way that the unit is sealed by a mechanical part to withstand dust, high temperature, and high humidity.

The mechanism part 11 is formed to withstand dust or frequent water spraying so as to be suitable for a culture environment of a plant, and is composed of modules for each channel in order to provide a uniform amount of light. Adjustable, up to 40 degrees by using a motor actuator to adjust the angle by the electric light is made to be uniformly transmitted.

Inside the mechanism unit 11 is composed of an LED module (LMD: LED Module), LED control unit (LCU: LED control unit), angle control motor control unit, power line communication unit (Power).

The LED module unit 12 is manufactured by molding a plurality of LEDs on the PCB board, fixing the board inside the heat sink for heat dissipation, and molding them with EPOXY for complete waterproofing. do.

The LED module unit is manufactured for each LED wavelength, and an LED module having five wavelengths is used in combination. The LED module unit consists of 5 channels, and the detailed specifications for each color are as follows.

The LED module unit is configured based on DC24V and 0.48A for each color (about 9W), and increases the efficiency of construction by increasing the output of one bar and reducing the number of bars than the first production.

The LED control unit 13 receives the control information for each LED channel through a wired communication with the central control unit, and adjusts the brightness by adjusting the PWM output to the corresponding LDU (LED Driver Unit), the entire LED module unit By measuring the current consumption on the left and right sides, it is possible to predict the abnormality of the output.

The LED controller can be adjusted in 200 steps (0.5%) of PWM 0 ~ 100% brightness within the frequency range of 1 ~ 20kHz, individually controlling each LED controller through the central controller, or selecting multiple LED controllers in groups It can be configured and controlled.

When the LED controller receives data of the brightness change amount with time from the central controller, the LED controller controls the brightness at the corresponding time even if not connected to the central controller. Communication method supports PLC (Power Line Communication) communication and can use existing AC power line without installing a separate communication line.

The LED control unit is composed of a CPU for controlling the LED, an input / output circuit for detecting an operation state, and a PLC communication circuit for transmitting data to the LOCAL CONTROL SERVER by power line communication (PLC), and a control command from a remote controller through power line communication. To control the lighting.

The LED control unit should be able to independently control the lighting by the downloaded and stored program even when the communication connection with the remote controller is lost.

The LED control unit is composed of a digital input unit, an analog input unit, a PWM output unit, and a communication unit.

Digital input part is composed of DIP switch and has 8 inputs in total, and performs the following functions.

Manual ID setting of digital input unit supports maximum 15 (1 ~ 15) LCUs, and can be set within a specified time (30 seconds) after initial LCU power-up. (If the operation ID needs to be changed, turn off the power of the lighting control device and turn it on again. Then, change ID command within 30 seconds. If DIP8 is turned OFF, the communication ID is set. The initial ID value is 1. It can be set within a specified time (30 seconds) Self-test checks the status by sequentially turning on / off the LEDs for each channel when the initial power is applied. Even if the master device is turned off, the LCU controls the brightness of the LMD for a set period with the received scheduling data (up to 50 data).

In addition, the DIP switch is located inside the case, and there is a limit to the operation, so the software setting is used when installing the product.

The analog input part receives the total power consumption through the current resistance to the power input part and can check whether there is an abnormal output of each channel by sequential driving for each channel during self test.

When operating, the total power consumption can be obtained, but to check the power consumption of each channel, all channels except the measurement channel should be turned off. The current detection circuits of the left LMD and the right LMD are separately implemented, and the abnormal state of the LMD can be detected by judging the left / right current consumption measurement values. The input voltage of 24V is measured by the resistance voltage divider, and the master device is marked as low voltage if it is 22V or less and high voltage if it is 26V or more.

The output part has PWM output with the same frequency of 1 ~ 20kHz in the LED module part of 5 colors and controls the brightness for each channel.

The PWM output can be set according to the weight set by time division for each color, and the pulse train according to the frequency is outputted, so that it can be controlled alternately every given period.

The communication unit uses PLC communication using AC220V power line as the communication line without installing a separate communication line. PLC communication is very sensitive to the installation status of the power line and electrical noise, so install it so as not to interfere with the communication when installing the power line. PLC is vulnerable to power noise and response time is about 800ms.

The angle control motor control unit controls the motor for adjusting the angle of the mounted LED module unit. The power of the motor is used by receiving 24V power, and the basic angle control range of the LED module unit is 0 to 40 °.

Switched mode power supply (Switched mode power supply) supplies power to each configuration using an external Switched-Mode Power Supply (SMPS) of DC24V-200W or more, and the 5V power provided to the control unit and communication unit is the main power supply 24Vdc DC / DC converter Use to convert 5V.

The sensor module is installed to collect information of the environment where the LED lighting device for plant cultivation is installed. The sensor module for collecting environmental information is composed of a sensor probe and a sensor body for converting and controlling a value input from the sensor probe to be transmitted to a local controller.

The sensor consists of four sensors for measuring illuminance, temperature, humidity, and CO2. The illuminance sensor is built into the SCB case, and the temperature / humidity / CO2 sensor consists of a separate sensor probe. It is configured to be possible.

It is also configured to support two current loop type (4 ~ 20mA) input ports for users to install additional sensor devices.

The ID for identifying the device during PLC communication can be set by operating the DIP switch, and the setting method through communication is also possible.

The sensor module also includes an AC input, PLC modem, DIP S / W, ambient light sensor, CO2 sensor, current sensor, and SCB case.

AC input connects AC220V used for power supply of SCB board and PLC communication line. The PLC modem modulates Micom's signal to AC line and sends the signal. DIP S / W sets communication ID. If SW8 is ON, DIP S / W 4 ~ 1 is used as ID and starting address is from 0xFF00.

The range of the light sensor is automatically adjusted and has a measuring range of 0 to 65,000 lux. Ambient light sensor module is connected to SCB board by 3.3V and I2C. The measurement standard of the illuminance sensor is an obstacle-free standard and is equipped with a transmission window for waterproofing. The attenuation rate of the transmission window is about 8%.

If the attenuation rate flowing into the Ambient Light Sensor changes, the Attenuation Rate can be adjusted / corrected through the control program (default: Ambient Light Sensor Aid High = 100 / Low = 92-> Attenuation 92%)

The CO2 sensor consists of a separate case, includes a temperature sensor and a humidity sensor, and the power supply is 24V and is connected by RS-485 communication.

The current sensor is a current loop type input port for mounting the sensor. The input range is 4 ~ 20mA. If there is no connection, it returns 0mA. The power supports two in In1 and In2, and can be connected in three or two wires depending on the configuration of the sensor. In case of needing separate power, connect 24V and G to sensor power, and In to sensor output.

-In case of 2-wire type, connect 24V to (+) of sensor and In to (-) of sensor.

Next, a functional specification and a method of using the central control program of the lighting system of the present invention will be described.

Looking at such a central control program, the PC transmits time zone control data set by the user to the LCU device, and the LCU operates even when the PC is shut down using the input scheduling data (scheduling function).

In addition, it collects controller status information such as LMD brightness, trouble, and power consumption through communication with each controller and displays it on the screen to identify the overall controller status at a glance (status monitoring), and individually brightness and output The control command can be sent to check the LCU for abnormalities (manual control).

The PC synchronizes the time with the LCU by transmitting the PC time every designated time. Even if the PC is off, the LCU controls the light source with the scheduled daily data (time synchronization function).

 Only one copy of Monitoring S / W is provided. For this purpose, the computer to be installed must be registered. When you run the provided program, the registration guide dialog box appears as shown below. Press the Copy button in the dialog box to copy the serial number and send it to the manufacturer by e-mail. Copy it to the clipboard with the Copy button and paste it when you write an email).

The manufacturer provides the license file after checking the certification process. If the file is put in the same directory as the executable file, the registration process is terminated. The license file can be used permanently even if you format the computer.

The lighting system software of the present invention communicates with a plurality of LCUs using a predetermined protocol, parses the collected data into necessary data, and transmits schedule information stored in a PC.

The system displays the status information such as LMD brightness, trouble, and power consumption on the screen so that the user can easily recognize it. The system sends the brightness and power control commands individually so that the user can check the LCU for abnormalities. The system performs scheduling automatically. The system synchronizes the time by sending time information to the LCU at regular intervals. The system stores configuration files to store a set of information related to program execution. The system stores and manages information such as patterns and schedules in a database.

Referring to the present invention again, the illumination system of the present invention is to set the growth cycle of each plant divided into a pattern, a pattern schedule, a daily schedule and to manage it in detail to allow more objective and accurate control have.

Plants grow and go through various patterns.

The following figure shows the growth pattern for lettuce as an example. Assuming that the lettuce grows through 2 days of germination, 5 days of growth, and 10 days of promoter, for this purpose, each daily schedule for germination, growth, and promoter is created first. The daily schedule (short cycle) allows you to set how to control the lights based on a 24-hour day. The pattern schedule (long cycle) generates the entire growth as a schedule as shown in the figure. The pattern schedule of lettuce was set to go through 2 days of germination, 5 days of growth, and 10 days of promoter. The pattern was named lettuce. All the settings are done by connecting the corresponding pattern of the crop to be grown to the registered controller and specifying the start date. In this case, a common pattern and controllers starting at the same time may be grouped to be managed.

Complete conceptual flow chart of smart lighting control system

Basic communication specification

Communication method: Power line communication

Baud rate: 19,200 bps

Data bits: 8 bits

Parity bit: None

Stop bits: 1

Development environment

OS: Window XP SP3

IDE: Visual Studio 2008 SP1

Data Base: Microsoft Access 2007

An example of unilaterally operating the lighting system of the present invention is as follows.

The program uses serial communication and, at initial launch, opens a port to connect to the LCU. Port connection information is displayed on the status bar at the bottom of the program UI. If there is a problem with the port that cannot be opened or you want to change the port, you can set the port information in the configuration.

Scheduling starts automatically when the program is started and [Controller and Group Management…] in [Scheduling Settings]. ] To search for the controllers registered in [Communication] and to display the corresponding information on the entire controller information. Schedule Management… ] To connect pattern model with controller in [Pattern Schedule…] of [Scheduling Settings]. ] And [Daily Schedule… ] Must be set first.

If the program fails to find the controller, the program tries to search again every minute and the connected controller requests status information at regular intervals and displays it on the screen. Scheduling has a higher priority than user events or monitoring, so when scheduling occurs, monitoring stops and the user's UI operations are restricted.

The program automatically sends the scheduling information to the LCU using the time information of the registered controller and displays the information in the LOG window.

To check the LCU for abnormalities, use [Manual Control]. Manually select the desired controller and group, then set the brightness value and turn on option.

The monitoring proceeds as follows.

 When the program starts, the monitoring stop status is the default and press the [Start Monitoring] button to start monitoring. If it proceeds without error, the shape and text will be changed by [Monitoring]. If you want to stop monitoring again, press [Stop Monitoring].

Monitoring communicates with the controller and displays the status information of the controller on the PC for the user to see easily, and sends the pattern information and time information of the PC to keep the status of the controller up to date. If monitoring does not work, change communication setting of environment setting.

The environment setting is as follows.

Environment setting is divided into monitoring setting, calibration table setting, user management, angle setting and sensor module setting.

Monitoring setting sets basic environment value (communication port setting, master address setting, monitoring and time synchronization period setting, server setting, coordinate setting) necessary for monitoring.

If communication does not work at the beginning of the program, check the communication port of the environment setting. (Communication speed is 19200bps unified with controller: Prohibit change) Search and select serial port for COM installed in system. If your computer does not have a serial port, you must connect it using a USB to Serial converter. In this case, you can see the port set by the system without opening the control panel.

If communication does not work, Master ID should also be checked. The main PC where the program is installed is called Master. The default ID is FFF1. (Master ID is also set in the controller, so do not change it.)

Server setting is a value set for transmitting and receiving data through network communication. WAN IP is the server address that must be provided by the server in order to access it from an external client.

Coordinates are set for the calculation of sunrise and sunset times. Sunrise and sunset are values used in daily schedule settings for supplementary light.

Manual time synchronization is used to communicate the current time of the PC to all LCUs for synchronization purposes.

The monitoring cycle and the time synchronization cycle show the default values.

The calibration table setting is the correlation between the PWM period (duty) and the brightness value (uMol) for control.

For each of the five channels, each correlation is shown by a first-order formula. The derivation of the function uses a method of least squares, which means a method that minimizes the sum of squares of errors.

The correlation coefficient R ² here is used as a criterion for how well the function represents the correlation and has a value between 0 and 1. 1 if all data exactly match the straight line.

If the correlation between PWM cycle and uMol is deformed and re-measured, press the pencil icon to enter edit mode and enter the PWM Duty value on the left side and uMol value on the right side.

If you press the [Apply Now] button at the bottom of the dialog box, the edited contents are applied immediately and the formula is recalculated. Otherwise, the formula will be recalculated the next time the program is restarted.

User management is a function of registering and managing a user to authenticate a client connecting to a server for network communication. The ID and password must match to connect over the network.

Permissions are divided into administrator and observer. Administrators can also remotely control and observers can only monitor.

Waiting for permission in the access right can be accessed only if the client's connection request is approved by the administrator of the local server.

The angle setting of the lighting device is used to adjust the angle of the lighting lamp according to the height of crops for each group. First select a group (controller in case of not specified group), find and select a value larger than the height of the plant using the control bar at the bottom, and press the Apply button. As soon as it is pressed, the controller and group change the angle.

Sensor module setting can specify sensor module by group and controller. The sensor module measures temperature, humidity, CO2, illuminance, and two current (4-20mA) measurements.

The status bar is shown below.

The communication port status is as follows.

Error information and scheduling notification status are as follows.

: BUSY,

:IDLE).Displays messages to inform the user, such as version information and error information, and indicates that the system is busy with scheduling (

BUSY,

: IDLE).

The control unit will be described below.

The screen lists the schedule name and schedule status according to the schedule, the group name associated with the schedule and the controller information. If a schedule is not connected, the bottom line is displayed and the schedule status is displayed as [not specified].

The schedule name indicates the schedule name to which the controller belongs. If a schedule is not specified, it will be blank. The schedule status indicates whether the schedule is in progress. [In progress] indicates that the schedule is in progress and [Complete] indicates that the schedule is completed. [Not reserved] indicates that the schedule is specified but not scheduled, and does not proceed even if the start date arrives. [Reserving] makes a reservation on the schedule and proceeds automatically when the start date is reached. [Elapsed] does not make a reservation on the schedule and the start date has already elapsed. Therefore, the schedule must be changed. Say it did not.

The group name indicates the group name to which the controller belongs. If it does not belong to a group, it will be blank. Pattern model name has a pattern connected to each controller or group, and displays the model name of the pattern. [Schedule Management… ] Is the value set.

The controller name is a unique name that does not overlap with each controller and is used as an alias for the controller ID. It is easier for the user to recognize the controller name than the controller ID.

The controller ID has a unique ID that does not overlap with each controller and is used for communication (hidden in the main screen, but can be seen in the controller and group management).

Progress shows the current progress and date of the schedule of all patterns connected to the controller. If the progress is completed, [All pattern execution completed] is displayed as the figure.

Once all patterns are executed, they must be deleted in [Schedule Management] to disappear from the main.

CH1 (%) ~ CH5 (%) are brightness information of current controller. The connection can only be read if successful. It is expressed by the duty value and the value of uMol.

If error occurs, it displays [Error] and double-clicks the line of the controller to display the details in the error detail information window.

The connection status is displayed in different contents and colors according to the connection status. When the program is started for the first time, all of them will be in the connection waiting state, and according to the connection result, it is divided into connection failure and connection success. If you reconnect after a connection failure, try changing your status and attempting to reconnect.

If you double-click a controller to view detailed information in the entire controller information window, the details are displayed in the detailed information window (daily schedule information, pattern scheduling information, error information).

The details pane shows the current progress with an arrow mark. In the example, it can be seen that [Rose A type 1 stage] is in progress.

In addition, information on the light beam setting and rolling setting corresponding to [Rose A type 1 step] can also be checked.

The sensor module provides two current measurements: illuminance, temperature, humidity, and CO2.

Double click the sensor module to check the progress of the module. The graph only shows values for the last hour since the Windows program started.

The setting column below the graph is a graph view option to set the unit and the starting value of the thick line.

The reflection period (minutes) of the time attribute is a cycle that the PC requests the sensor value from the sensor module. In the example, the sensor is set to request a sensor value every 1 minute. The sensor file exists as the year, month, and date.csv file in the directory Sensor> Sensor ID> year> month in the directory where the executable file is located.

In the log information, a log of scheduling contents and the controller as a whole is displayed together with time information.

[2011/10 / 11-10: 35: 48]: It occurs at 10:35:48 on October 11, 2011. [2] represents the controller ID, which means the log record of controller 2.

Receiving a schedule list of the controller (1) indicates that the schedule list is received from the controller as the contents of the log and is the first of them.

By manual control, the user can individually check brightness, output control, and angle command to check for abnormalities of the LCU.

1) Brightness Control

ID: Select a controller to control. (Controller ID: Controller name)

Group ID: Select when the target to be controlled is the whole group, not the controller. (Group ID: Group name)

Brightness (%): Sets the brightness value for each channel by direct input or slide bar. When brightness is set, the corresponding uMol value can also be checked. Brightness values are different for each color specification (net current / net voltage), so each color is limited differently to ensure maximum usage time.

On / Off: Led On / Off option for each channel

Channel frequency: Common control frequency of each channel.

Alternating Control: Output by applying alternating control

Order: Specify order by channel for alternating control.

Weight: Weight of each channel (sum of weights should be 100)

Weight resolution: Input resolution of the weight. (The smaller the value, the higher the resolution.

Minimum number of pulses: Number of alternating cycles from CH1 to CH5.

Alternating Period Minimum: The minimum alternating period satisfying channel frequency, weight resolution and minimum pulse. The alternating period below must be greater than this value.

Send: Send the brightness information to the controller.

If you use CH (ALL), you can set the whole at once.

2) Actuator Angle Setting

The angle of the actuator can be set manually. Set the angle using the angle setting bar and send control commands to the angle shift and zero shift buttons. If you want to move the angle through the zero point, check the zero check box.

3) measured value

Manual mode operation displays voltage, current, power measurement and angle related status values on the screen.

4) Read sensor module

You can select ID of sensor module to read and read the total value and illuminance value. Readings are displayed at the bottom right.

The manual control dialog box can be used to check the LCU for abnormality by manually controlling the controller and to manually maintain the brightness of the controller for a while (measurement of PWM and uMol, etc.). For this purpose, the manual control dialog is connected and the controllers and groups controlled manually do not schedule any more until the manual control dialog is closed.

One manual control dialog box controls only one controller and group, and changing the controller and group IDs causes the manual mode of the previously selected controller to be released. When manual mode is canceled, it returns to the original pattern and proceeds with the schedule. It also allows multiple dialogs to be displayed to allow manual handling of multiple controllers simultaneously. The figure shows a separate dialog box for manual control of controller ID 1,2,3 and group A lettuce and group A strawberry.

The scheduling setup proceeds as follows.

Scheduling settings can be classified into four categories.

Daily Schedule: Daily schedule sets the brightness value for each time zone.

Pattern Schedule: A pattern schedule creates a pattern by combining daily schedules.

Controller and group management: Set up the relationship between controller and group.

Schedule Management: Designate pattern schedule and start date by controller or group.

Scheduling relationship

Daily schedules are created with timephased schedules for Bokwang and Jeonjo, and daily schedules are gathered to create pattern schedules. Finally, the pattern is associated with a controller or group and given a start time.

Daily schedule setting

Daily schedule is the setting of the brightness value of each time zone LED based on 24 hours a day as shown in the picture. For daily schedule setting, there are two types of light mode and roll mode.

The left part of the setting screen below manages the model of daily schedule, and designates the pattern name suitable for the growth of the plant such as germination, growth, 1st stage, 2nd stage, etc., and the right part manages the daily schedule of the selected model. By entering the picture into a table.

1) Model Management

If you add a model called "strawberry type A step 1", "strawberry type A step 1" is added to the list in the left column. In addition, "Strawberry Type 1 Stage 1" is added to the model selection box in the schedule management on the right side. Model names should be considered similar to patterns.

2) Schedule Management

In Model Selection, select a model to manage the schedule. In the example, the rose A type 1 stage was selected. Select whether to apply the complementary mode or the roll mode. At least one of the two must be chosen.

The light keeping mode is a mode for setting energy to light when the illuminance value is less than or equal to the reference value.

The illuminance reference value is a reference value of illuminance for energy supplementation. (If the illuminance value is less than the reference value, the illuminance value is applied.) In order not to utilize the illuminance value, the application is not checked. In this case, complementary light is performed in all sections from the light compensation time before sunrise to the light compensation time after sunset.

Sunrise sunset calculation is a method of automatic calculation of sunrise / sunset using the date and coordinate values and a method of designating the time for the user to direct light.

The preservation time before sunrise is performed from the time set in the preservation time before sunrise. The complementary time after sunset is complemented to the time set in the complementary time after sunset.

 The roll mode is a mode for setting night to recognize day. It can be divided into three time zones.

For start time setting, enter the time zone to which the precursor is to be applied. The duration setting maintains the roll from the start time of the roll to the time set in the duration. The lighting cycle setting can set the lighting cycle to test the characteristics of rolling.

Each button in the figure has a common meaning.

Add is when you register a new model, delete is when you want to delete the model, apply when you apply the current settings, and cancel when you cancel the current entry.

When registering a new model, first press the Add button, and then enter your inputs and options. Then press the Apply button.

To delete a model, select the model from the list with the mouse and press the Delete button. When modifying a model, select the model from the list with the mouse. You can see what you have entered below, edit the part you want to modify, and press the Apply button.

Pattern schedule setting combines the daily schedule to create and manage a pattern similar to the growth pattern of the plant. In the figure, the growth pattern for the lettuce was set to proceed in order of 2 days of germination, 5 days of growth, and 10 days of promoter, generated in the daily schedule.

The following is an example of defining a “strawberry” pattern on the setting screen.

The upper part is a part which manages the model of the pattern schedule, and the lower part is a part which manages the schedule of the selected model.

1) Pattern Management

If you add a model called "Strawberries", "Strawberries" is added to the list at the top. In addition, "Strawberries" is added to the model selection box in the schedule management at the bottom.

2) Schedule Management

In Model Selection, select a model to manage the schedule. In the example, strawberries were selected. Select the daily model to register on the strawberry and enter the duration.

In the illustrated picture, the strawberry pattern consists of strawberry step 1 (5 days), strawberry step 2 (6 days), strawberry step 3 (7 days) and strawberry step 4 (8 days).

Next, controllers and group management should link the patterns of crops to be cultivated for each controller. For example, controller 1 is lettuce, 2 is strawberry, and 3 to 10 is a case of growing Chinese cabbage crop. The controllers 3 to 10 can be grouped together and finished with one set. This concept is called a group. Crops that proceed in the same pattern at the same time are grouped so that they can be controlled simultaneously.

Controller management registers / manages controller in the upper left part of the figure. If you add, modify, or delete a controller, it will be reflected in the group link box on the right. If you add a controller, you can see that the group is not assigned because it is not assigned.

For the controller ID, enter the ID assigned to the controller at the factory. This part should be input by administrator or manufacturer. The controller name is an alias for the controller ID so that the user can give a name that is easy to recognize. Can not be used with other controller name.

Group management registers / manages groups in the lower left part of the figure. Like controller management, adding, modifying and deleting will be reflected in the right group connection box. Deleting a group also affects the controller. When the connected group is deleted, all the controllers are changed to the group unspecified state.

Group name specifies the group name for the group. It cannot be duplicated with another group name.

Group connections have the same pattern, and controllers to be controlled at the same time can be conveniently used by grouping and managing them.

You can use the mouse's drag-and-drop function to connect, change, or disconnect groups. First, hold down the controller with the mouse and move to the desired group to release the mouse.

When you connect a controller with a group, you can check its position. It can be effectively used when the number of controllers increases.

In the Controller Management and Group Connections box, select the controller you want to check the location of and click the right button to display the popup menu (Location check). If you select this, the controller will blink for 8 seconds (1 sec on, 1 sec off).

When connected with a group, the controller's attributes are destroyed and all attributes owned by the group are duplicated. If the group is already in progress, the controller will follow the pattern of the group.

In the above description, the process of grouping the controllers into groups has been described. Now connect the patterns of crops to be planted for each controller or group and register the start date. The upper part of the setting screen shows the information of the currently registered schedule. In the case of the “strawberry trial cultivation 1” schedule selected in the example, strawberry crops are scheduled to be grown from June 3 to June 23, 2012.

When managing schedules, select a group or controller as the control target. Then select the pattern of crops to be planted in the control object. Enter a schedule name that matches the pattern name and select a start date. If the start date is later than now, click the Schedule button to run automatically.

Before starting the lighting system according to the present invention, the operation plan should include the following items.

1) As this system is operated by daily scheduling concept, operation plan for 24 hours a day should be decided. 2) Since this system is operated by the concept of pattern scheduling, overall pattern scheduling suitable for plant growth pattern should be included in the operation plan in advance. 3) This system includes the controller and group concept of grouping the controller, so it should be included in the overall plan. 4) Since this system is operated by connecting patterns to controllers and groups, it is necessary to determine in advance which controllers and which groups are connected to which patterns and when they will be operated.

Once the operation plan is confirmed, the scheduling is set according to the operation plan. The order of progress is daily scheduling, pattern scheduling, controller and group management, and schedule management.

That is, the planned daily scheduling is set, and the application plan for the light compensation mode and the precursor mode is set and set. If the complementary mode and the precursor mode overlap, the supplementary mode is given priority. In the case of a frequently used schedule, it is defined by using the preset function. You can use it just by loading.

Then set the planned pattern scheduling. If all the previous daily scheduling is set up properly, pattern scheduling can easily be completed simply by selecting the model and entering the duration.

Next, controller and group management are performed. The number of physical controllers (lights, etc.) and the number of controllers set in the program are compared to check whether they are the same. If it is not the same, check the controller position to perform 1: 1 matching. Set the controllers and individual controllers to be grouped correctly.

Schedule management accurately inputs controller and group, planned crop pattern and start information. Do not connect patterns to groups and controllers that are not included in the operational plan.

Once the operation plan is finalized and set up according to the operation plan, press the start monitoring button on the main screen to monitor the overall operation status.

Subsequent tasks are automatically run according to the program scheduling of the PC and the controller, and records the progress log.

10: lighting device 20: local control device
30 sensor module 11 mechanism
12: LED module unit 13: LED control unit
14: local control unit 15: power line communication unit

Claims (6)

In growing plants indoors,
An illumination device for variably controlling the amount of light required for each plant;
A local control device for controlling and controlling the lighting device; And
And a sensor module for measuring environmental conditions such as temperature, humidity, illuminance, and CO2, and transmitting the same to the local control device to monitor the environment of the plantation. The method of claim 1,
The lighting apparatus has an LED controller, an LED module, a local controller, and a power line communication module mounted therein, and downloads lighting control data transmitted from the local controller from the LED controller to turn on and control the LED module. A plant cultivation lighting system characterized in that. 3. The method of claim 2,
The lighting device further comprises a mechanism installed outside to withstand dust, high temperature, high humidity, the LED control unit, LED module, local control unit and power line communication module is a plant cultivation lighting system, characterized in that the sealed by the mechanical unit . The method of claim 1,
The local control device, the lighting system for plant cultivation, characterized in that to provide the lighting necessary for plant cultivation by programming the environmental data collected through the sensor module and the lighting data necessary for plant cultivation to the lighting device. The method of claim 1,
The sensor module measures the environmental conditions such as temperature, humidity, illuminance and CO2 through each measuring probe, and processes the measured data information and transmits it to the local control device through the power line communication module. Cultivation lighting system. The method of claim 5,
The sensor module is a lighting system for plant cultivation, characterized in that it comprises a sensor probe and the sensor body is converted and controlled to transmit the value input from the sensor probe to the local control device.

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