KR20150074504A - multiplex environment control system of green house and control method thereof - Google Patents

Abstract

To improve accuracy and efficiency in controlling temperature and humidity in a greenhouse by adjusting opening and closing of a ventilation window and a lagging cover of the greenhouse according to environmental factors outside the greenhouse, the present invention provides a method for controlling a multiplex environment control system and a method for controlling the same, wherein the method comprises: a first step of inputting sunrise time for opening or closing a ventilation window of a greenhouse having a lagging space formed therein to be fractioned from the outside, and sunset time for lagging the inside of the lagging space; a second step of activating an optical sensor for measuring insolation outside the greenhouse before transition time predetermined from the sunrise time and sunset time, so that opening or closing of the ventilation window and a point of time when the inside of the lagging space is lagged can be corrected according to the environmental factors outside the greenhouse; and a third step of performing ventilation adjusting controlling when insolation detected by the optical sensor before the sunrise time is equivalent to or more than a predetermined standard insolation value, and stopping the ventilation adjusting controlling when insolation detected by the optical sensor before the sunset time is less than the predetermined standard insolation value.

Description

[0001] The present invention relates to a hybrid environment control system and a control method thereof,

The present invention relates to a hybrid environment control system, and more particularly, to a hybrid environment control system in which the opening and closing of a ventilation window and an insulating lid of a greenhouse are controlled according to environmental factors outside the greenhouse to improve the accuracy and efficiency of temperature and humidity control inside the greenhouse And a control method thereof.

Generally, a greenhouse used for cultivation of crops is formed by fixing a frame equipped with a tunnel structure to a ground, and covering the top of the frame with transparent vinyl.

Such a greenhouse can transmit solar radiation energy through vinyl, warming the surface, and raising the internal temperature through the greenhouse effect, in which infrared rays emitted from the heated surface are blocked by vinyl and then reflected back to the ground.

Accordingly, various crops can be cultivated in winter, and high-quality crops with high productivity can be cultivated throughout the four seasons. Thus, they are widely used for cultivating various crops with high profitability.

In addition, the greenhouse can artificially control the internal environment to suit the growth of each crop, thereby promoting the growth rate of crops and hastening the harvest time, thereby improving the economical efficiency of crops and increasing profitability.

At this time, it is very important to control the internal environment of the greenhouse, that is, the temperature, the humidity, the carbon dioxide concentration, etc., in order to provide an optimum growth condition for the greenhouse. Therefore, a side window and a skylight are formed on the side and upper part of the greenhouse to control the internal environment, and an electric switch may be provided to open and close the window.

In addition, an inner tunnel is provided to prevent crops grown inside the greenhouse due to shortage of solar radiation at night during winter, and a thermal cover made of a nonwoven fabric or a carcassonon is provided on the upper side of the inner tunnel. At this time, the heat-insulating lid is connected to another opening / closing means and can be selectively opened and closed by a user's operation

Here, the electric switch and the opening and closing means are closed and driven to close the ventilation window or the heat-insulating lid when the sun is over in order to prevent the cold of the crop by maintaining the temperature inside the greenhouse.

On the other hand, in order to prevent damage to crops due to insect damage caused by high temperature and high humidity environment, when the sun goes down, the ventilation window is opened to circulate the humid air in the outside, and the circulated inflow air, It is heated through radiant heat. At this time, the electromechanical switch, the opening and closing means and the like are controlled by the complex environment controller, and the operation of opening and closing according to the period set by the user can be performed.

However, conventionally, the ventilation window and the heat-insulating cover are opened or closed when the complex environment controller reaches the pre-input sunset time and the sunrise time. The sunset time and the sunrise time differ not only in the area but also in the same area, In many cases.

That is, since the conventional controller opens and closes the ventilating window and the heat-insulating cover uniformly according to the input time, the controller can not compensate for external environment factors and can not reflect the external environmental factors.

As a result, there is a problem that the ventilation window and the heat-insulating cover are kept closed even when the sun is already open, so that the crop is exposed to hot and humid air for a long time, thereby increasing the risk of insect pests and degrading the soil.

In addition, even though it has already been sunk, the ventilation window and the thermal insulation cover are kept open so that the crops are exposed to the cold air and suffer from cold weather, or the temperature inside the greenhouse is difficult to maintain. .

Korean Patent No. 10-0278692

In order to solve the above-described problems, the present invention provides a hybrid environment control system and a control method thereof, in which the accuracy and efficiency of the temperature and humidity control inside the greenhouse are improved by controlling the opening and closing of the ventilation window and the heat- And the like.

A first step of inputting a sunrise time at which a ventilation window of a greenhouse formed with a warming space partitioned from the outside is opened and closed and a sunset time at which the inside of the warming space is kept warm; An optical sensor for measuring an amount of solar radiation outside the greenhouse before a predetermined transition time from the sunrise time and the sunset time so that the opening and closing operation of the ventilation window and the time for inserting the inside of the heat keeping space are corrected according to the external environment condition of the greenhouse A second step to be activated; And when the amount of solar radiation detected by the optical sensor before the sunrise time is equal to or greater than a preset reference solar radiation value, ventilation control is performed, and if the solar radiation amount detected by the optical sensor before the sunset time is less than the predetermined reference solar radiation value And a third step in which the ventilation control is terminated.

In the third step, the ventilation control is performed when the amount of solar radiation detected by the photosensor is greater than or equal to the preset reference solar radiation value before the preset transition time elapses from the sunrise time, And stopping the ventilation control if the amount of solar radiation detected by the optical sensor is less than the predetermined reference solar radiation value before the predetermined transition time and elapses.

In the third step, the ventilation control is performed when the preset transition time elapses from the sunrise time, and the ventilation control is ended when the predetermined transition time elapses from the sunset time Do.

In the third step, the ventilation control is performed when the sunrise time is reached, and the ventilation control is terminated when the sunset time is reached.

Meanwhile, a greenhouse having a warming space in which crops are grown therein; An optical sensor for measuring a solar radiation amount outside the greenhouse; A ventilating / inserting means for ventilating and keeping a warm space inside the greenhouse; And activating the photosensor before a predetermined transition time from the sunrise time and the sunset time, wherein when the solar radiation amount detected by the photosensor before the sunrise time is equal to or greater than a preset reference solar radiation value, And a ventilation regulation control unit for terminating the ventilation regulation control when the solar radiation amount detected by the photosensor before the sunset time is less than the predetermined reference solar radiation value.

Through the above solution, the present invention provides the following effects.

First, the ventilation control unit performs ventilation control for ventilating and maintaining the inside of the greenhouse based on the inputted sunrise / sunset time, and activates the time zone such as transition time or transition elapsed time set before / after the sunrise / The productivity and the quality of the crop can be improved by providing the precise ventilation control which reflects the difference of the sunrise / sunset time depending on the installation position such as the altitude of the greenhouse or the surrounding terrain of the greenhouse through the optical sensor.

Second, when controlling the cycle of ventilating and maintaining the inside of the greenhouse by only the solar radiation measured by the optical sensor, there is a problem that the ventilation and the warming cycle are largely changed due to malfunction of the optical sensor. However, Since the ventilation control is performed when a certain period of time is not possible, the reliability of the product can be improved by controlling the balanced internal environment in accordance with the growth cycle of the crop.

Third, the ventilation control unit activates the optical sensor only in a time zone such as transition time and transition elapsed time set before / after the sunrise / sunset time, thereby minimizing the amount of usage, thereby increasing the durability of the optical sensor, The processing speed and stability of a product that adjusts the internal environment of the greenhouse can be improved through various measurements by reducing the calculation processing used for measurement and comparison.

Fourth, the ventilation control unit controls ventilation start and end times through a photosensor for the passage of time after the sunrise / sunset time so that when the solar radiation amount capable of compensating the internal temperature loss is supplied, ventilation is started, And delaying the end of ventilation until the solar radiation amount capable of maintaining the internal temperature is supplied, so that the light is supplied so that sufficient photosynthesis can be performed, so that the productivity of the crop can be improved.

1 is a perspective view illustrating a greenhouse to which a complex environment control system according to an embodiment of the present invention is applied.
2 is a side view showing the inside of a greenhouse to which a hybrid environment control system according to an embodiment of the present invention is applied.
3 is a diagram illustrating a time zone in which the transition time and the transition elapsed time are applied before and after the sunrise time and the sunset time in the hybrid environment control system according to the embodiment of the present invention.
4 is a block diagram illustrating a complex environment control system in accordance with an embodiment of the present invention.
5 is a flowchart illustrating a method of controlling a hybrid environment control system according to an embodiment of the present invention.
6 is a flowchart illustrating a control method of a hybrid environment control system according to another embodiment of the present invention.

Hereinafter, a hybrid environment control system and a control method thereof according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a greenhouse to which a hybrid environment control system according to an embodiment of the present invention is applied, FIG. 2 is a side view showing the inside of a greenhouse to which a hybrid environment control system according to an embodiment of the present invention is applied, FIG. 4 is a diagram illustrating an example of a time zone in which a transition time and a transition elapsed time are applied before and after a sunrise time and a sunset time in a complex environment control system according to an embodiment of the present invention. Fig.

1 to 4, the hybrid environment control system 100 according to the preferred embodiment of the present invention includes a greenhouse 70, an optical sensor 20, a ventilation and warming means 60, and a ventilation control unit 10 ).

Herein, the greenhouse 70 is provided with a heat insulating space in which crops are grown. That is, the covering material 72 is covered with the frame 71, which is provided in a tunnel structure, so that a hermetically sealed space is formed inside the greenhouse. At this time, it is possible to cultivate the crops in the warming space.

In detail, the frame 71 may be formed of a steel pipe, a synthetic resin pipe, or the like, and the covering material 72 may be formed of various transparent materials such as a vinyl chloride film, a polyethylene film, and glass.

At this time, the frame 71 forms a tunnel shape by arranging the pipes in the arch shape and along the longitudinal direction of the thermal insulation space, and the coating material 72 is covered on the outer side of the frame 71, A greenhouse 70 may be installed.

Here, the inside of the greenhouse 70 may be exposed to the greenhouse effect by the covering material 72. That is, the solar radiation energy emitted from the sun passes through the coating material 72 to raise the temperature of the ground, while the earth's radiant energy emitted from the ground in which the temperature is raised does not pass through the coating material 72, So that the inside of the greenhouse can be warmed.

Accordingly, various crops irrespective of the season can be cultivated through the thermal insulation space. For example, vegetable such as melon, watermelon, cucumber, amber, etc. can be cultivated in the above-mentioned greenhouse, and flowers, fruit trees and tropical plants can be cultivated.

In the meantime, the greenhouse 70 needs to control the internal environment such as the internal temperature, the internal humidity, and the carbon dioxide concentration according to the crop to be cultivated. For this purpose, the ventilation and heat insulating means 60 is provided. Here, the ventilation / heating means 60 ventilates and keeps a warm space inside the greenhouse, and includes a ventilation window 50 and a heat-insulating lid 90.

In detail, the ventilation window 50 is provided on the upper and side portions of the greenhouse 70 to selectively ventilate the inside and outside air. At this time, the ventilation window 50 is provided with the transmission means 51, and the ventilation window 50 can be selectively opened and closed as the transmission means 51 is driven.

In addition, the driving means 51 of each ventilation window 50 can be controlled so as to be independently driven, and as the rotation amount of each of the transmission means 51 is controlled, the opening width at which the ventilation window 50 is opened and closed is controlled .

2, an auxiliary frame 92 disposed adjacent to the upper side of the crop p may be provided in the heat-insulating space, and the auxiliary cover 92 may be provided with an insulating cover 90 It is preferable that it is opened and closed.

The heat insulating cover 90 is provided with an opening and closing means 91. The heat insulating cover 90 can be selectively opened and closed as the opening and closing means 91 is driven. At this time, the heat insulating cover 90 is closed along the auxiliary frame 92 at night when the solar radiation heat is not supplied, so that the heat of the ground surface can be prevented from leaking to the outside as covering the upper side of the crop p .

In addition, a controller 80 is preferably provided on one side of the greenhouse. At this time, the controller 80 is provided to directly control various mechanical devices provided inside the greenhouse 70, such as opening / closing the ventilation window 50 or opening / closing the heat-insulating lid 90 according to a user's command.

Of course, the controller 80 may be driven to open or close the ventilation window 50 or the heat-insulating lid 90 by receiving a command from the ventilation regulation control unit 10 in a wired or wireless communication, It is also possible to automatically control the opening and closing of the ventilation window 50 and the heat-insulating lid 90 according to the environment inside the greenhouse.

Meanwhile, the optical sensor 20 measures the amount of solar radiation irradiated to the greenhouse 70 to efficiently control the internal environment of the greenhouse 70. The amount of solar radiation detected by the optical sensor 20 can be transmitted to the ventilation control unit 10 in real time. The ventilation control unit 10 performs a series of control processes corresponding to the amount of solar radiation, The internal environment of the greenhouse 70 can be controlled.

For example, as long as the solar radiation amount is sufficiently low, the sunshine can be irradiated on the land and crops as the heat insulating cover 90 is opened, and the internal temperature of the greenhouse 70 is raised through the greenhouse effect . In addition, when the inside temperature of the greenhouse rises, the ventilation window 50 is opened to adjust the amount of ventilation between the inside of the greenhouse 70 and the outside air, so that the temperature inside the greenhouse can be adjusted to an appropriate level.

Here, it is preferable that the temperature inside the greenhouse is adjusted to a set temperature corresponding to the growth environment data of the crop. At this time, the set temperature may be set to a temperature suitable for the kind of the crop and the growth stage.

In the night when the insufficient amount of solar radiation is insufficient, the ventilating window 50 and the heat-insulating lid 90 are closed so as to maintain the heat stored on the ground surface while covering the upper side of the crop, so that the temperature inside the greenhouse can be controlled so as not to fall below an appropriate level.

Since the circulation of the outside air and the inside air is small in the closed state of the ventilation window 50, the humidity inside the greenhouse can be raised. Therefore, when the sunrise time is reached, the ventilation window 50 is opened to circulate the greenhouse air and the outside air, By opening the heat-insulating cover 90 together, the sunlight is irradiated on the surface and crops, thereby adjusting the temperature inside the greenhouse and supplying the light necessary for the photosynthesis of the crop.

At this time, it is preferable that the ventilation window 50 is controlled so that the opening width of the ventilation window 50 is controlled according to the outside temperature of the greenhouse, the wind direction, and the like when the difference between the greenhouse interior temperature and the set temperature occurs.

Meanwhile, the ventilation regulation control unit 10 performs a series of control processes for controlling the humidity inside the greenhouse, the temperature, etc. according to the sunrise and sunset times, the solar radiation outside the greenhouse, and the like.

First, the sunrise time and the sunset time are input to the ventilation control unit 10. At this time, the sunrise time and the sunset time can be directly input by the user, and can be set according to the sunrise sunset data provided through the data storage unit 30 or the server.

The sunrise and sunset data corresponding to the area and the date are stored in a database and stored in the database. The ventilation control unit 10 calculates the sunrise time and the sunset time based on the greenhouse location information and the current date can do.

The ventilation control unit 10 activates the photosensor before a predetermined transition time from the sunrise time and the sunset time.

Here, the actual sunrise time may differ from the sunrise time and sunset time that are input or calculated according to the location of the greenhouse or environmental conditions. For example, if the greenhouse is located at a high altitude, the sunrise and sunset times may be faster and sunny than the input sunrise and sunset times. In addition, although sunrise and sunset times corresponding to regional ranges such as Pusan, Seoul, Gwangju, and Daegu are given, the sunrise and sunset times may be different depending on the detailed positions in the respective regions.

Therefore, the ventilation control unit 10 performs simple and accurate time control of opening and closing the ventilation window 50 and the heat-insulating lid 90 by reflecting the inputted sunrise time and sunset time, And it is possible to control the internal environment more precisely according to the external environment condition by correcting the time point of the control process by reflecting the measured solar radiation amount.

In detail, referring to FIG. 3, the sunrise time and the sunset time are calculated by reflecting the earth's orbit data at the latitude and longitude, and the time at which the actual sun comes up depending on the area and the terrain is different from the sunrise time and sunset time .

For example, about 3.6 seconds per 10 stories of an apartment, the sun rises quickly, and in the deep valleys, the sun rises from 30 minutes to 1 hour late, and the sun quickly rises from 30 minutes to 1 hour.

In addition, when the sun rises above the horizon at sunrise, the solar radiation may be different depending on the altitude of the sun or the weather conditions, and the solar radiation when the sun is at sunset may also vary depending on the altitude of the sun or the weather conditions .

For example, the sunrise time refers to the time at which the top of the sun appears on the horizon (the horizon), which is the transition time before sunrise and the transition elapsed time after sunrise. The amount of solar radiation can vary depending on the degree of appearance and the altitude of the sun.

Of course, the solar radiation changes according to the change of the altitude of the sun even during the daytime hours after the sunrise transition time, but it can also be changed according to the weather environment such as the change of cloud amount at the sunrise transition time.

In addition, the sunset time is the time at which the uppermost part of the sun rises above the horizon so that the altitude of the sun rises, the transition time before the sunset time, and the transition time after the sunset time. .

The required amount of irradiation and temperature vary depending on the crops cultivated in the greenhouse, and the amount of irradiation required to maintain the temperature inside the greenhouse may vary depending on seasonal or external environmental factors.

For example, if there is no significant difference between the external temperature and the internal temperature of the greenhouse, the internal temperature of the greenhouse can be maintained even if the solar radiation is not high. If the difference between the external temperature and the internal temperature of the greenhouse is large, Can be increased.

Accordingly, the time from the time when the transition time is subtracted from the sunrise time, the time from the sunrise time to the time when the transition elapsed time is added, and the transition time from the sunset time to the transition elapsed time to the time It is preferable that the opening and closing times of the ventilation window 50 or the heat insulating cover 90 are changed in order to provide a necessary amount of solar radiation or maintain the temperature necessary for the growth of the crop depending on the crop to be cultivated in the greenhouse.

Here, the transition time includes a first transition time before the sunrise time and a second transition time before the sunset time, and the first transition time and the second transition time may be set to be different from each other.

In addition, the transition elapsed time includes a first transition elapsed time after the sunrise time and a second transition elapsed time after the sunset time, and the first transition elapsed time and the second transition elapsed time may be set to be different from each other have.

Of course, the transition time and the transition elapsed time may be set corresponding to the environmental sensitivity of the crop, and may be set long if the environmental sensitivity is high and short when the environmental sensitivity is low.

When the amount of solar radiation detected by the optical sensor before the sunrise time is equal to or greater than a predetermined reference solar radiation value, the ventilation control unit 10 performs ventilation control to drive the ventilation heat keeping unit 60, When the amount of solar radiation detected by the optical sensor before the time is less than the predetermined reference solar radiation value, the ventilation control is terminated.

Here, the ventilation control may include controlling the opening width of the ventilation window 50 or opening / closing the heat-insulating cap 90 by driving the ventilation / heating means 60. [

The ventilation window 50 is opened while the opening width of the ventilation window 50 corresponds to an environmental factor such as a temperature inside the greenhouse, a set temperature, and an external temperature . When the ventilation control is completed, the heat shield 90 is closed and the ventilation window 50 is closed.

At this time, the reference solar radiation value may be set corresponding to the external temperature. In other words, when the external temperature is similar to the set temperature or the internal temperature, the reference value of the solar radiation can be set to a low value because the temperature decrease width during ventilation is small. If the external temperature is greatly different from the set temperature or the internal temperature, The reference solar radiation value can be set to be high because the solar radiation amount required to maintain the internal temperature is high.

As described above, the ventilation control unit 10 activates the optical sensor only in the time domain such as the transition time and the transition elapsed time set before / after the sunrise / sunset time, and deactivates the optical sensor outside the time domain, The durability of the sensor can be improved.

In addition, the hybrid environment control system 100 not only performs the ventilation control according to the sunrise / sunset, but also controls the opening width of the ventilation window corresponding to the difference between the internal temperature of the greenhouse and the set temperature, To control the internal environment of the greenhouse.

Therefore, by deactivating the optical sensor, it is possible to improve the processing speed of the product which controls the internal environment of the greenhouse by preventing the load of the calculation processing due to the continuous measurement and comparison of the radiation amount through various measurement values. Can be improved.

5 is a flowchart illustrating a method of controlling a hybrid environment control system according to an embodiment of the present invention.

As shown in FIG. 5, the control method of the hybrid environment control system 100 according to the preferred embodiment of the present invention comprises the following steps.

First, a sunrise time at which a ventilation window of a greenhouse in which a warming space partitioned from the outside is formed is opened and a sunset time at which the inside of the warming space is warmed is inputted (s10). That is, at the sunrise time, the ventilation window is opened to circulate the inside air having high humidity in the inside of the heat keeping space at night during the night, and the opening width of the ventilation window is adjusted to maintain the internal temperature at the set temperature.

At this time, the greenhouse may be equipped with a heat-insulating lid, and the heat-insulating lid will keep the heat of the surface covered with the crop at night. In addition, at the sunrise time, opening and opening width of the ventilation window are adjusted and the heat-insulating lid is opened to supply light for the photosynthesis of the crop.

Further, at the time of sunset, the inside of the heat insulating space is kept warm to prevent a decrease in the internal temperature due to a decrease in solar radiation amount. At this time, the ventilation window can be closed so that warm vapors do not flow out to the outside. When the heat insulation cover is provided, the heat insulation cover can be closed to heat the surface of the crop to cover the upper side.

Then, it is determined whether the current time is reached before the predetermined transition time from the sunrise time (s20), or whether the current time has reached the predetermined transition time from the sunset time (s70).

At this time, the step of determining the current time and performing the subsequent control process may include a time period in which the current time passes the sunrise time and a predetermined transition time from the sunset time, a current time passes the sunset time, It is preferable to include a process of determining whether or not the time is before the night.

Accordingly, even if the control process of the hybrid environment control system 100 is activated at a nighttime after the sunrise time or after the sunset time, it is performed before the predetermined transition time from the next sunrise time or before the predetermined transition time from the sunset time The subsequent control process (performing or terminating the ventilation control) can be performed smoothly without delay until the time determination process for determining whether the time is reached is reached.

On the other hand, if the current time is reached before the predetermined transition time from the sunrise time (s20), an optical sensor for measuring the solar radiation amount outside the greenhouse is activated (s30). At this time, the internal environment of the greenhouse can be controlled in accordance with the external environmental condition of the greenhouse by correcting the opening and closing operation of the ventilation window and the time of inserting the inside of the warming space through the irradiation amount measured by the optical sensor.

Here, the transition time is preferably set corresponding to the environmental sensitivity of the crop. For example, when the crop grown in the greenhouse is environmentally sensitive, the transition time may be set to be long so that humidity control and internal temperature control performed through the ventilation control can be performed more quickly.

That is, the photosensor is activated more quickly than the sunrise time or sunset time to start sensing the solar radiation amount as the crop is more sensitive to humidity change, and ventilation control can be performed when a sufficient solar radiation amount is measured. Of course, even in the case of sunset, when the solar radiation of less than a predetermined value is measured through the optical sensor, the ventilation control is terminated and the internal temperature is maintained.

Accordingly, it is possible to quickly and accurately perform periodic ventilation control for ventilating and maintaining the inside of the greenhouse on the basis of the sunrise time and the sunset time, and also to enable activation in time zones such as transition time and transition elapsed time set before and after the sunrise / It is possible to correct the execution time and the end point of the ventilation control by the irradiation amount measured through the optical sensor.

Thus, productivity and quality of crops can be improved through precise control of the internal environment of the greenhouse reflecting the difference in sunrise / sunset time depending on the installation location such as the altitude of the greenhouse or the surrounding terrain.

On the other hand, if the solar radiation amount detected by the optical sensor before the sunrise time is greater than or equal to a preset reference solar radiation value (s40), the optical sensor is deactivated and ventilation control is performed (s60). Here, it is preferable that the ventilation regulation control includes a control process of opening the heat-insulating lid and adjusting the opening width of the ventilation window.

At this time, if the detected solar radiation amount is less than the predetermined reference solar radiation value (s40), it is determined whether the current time has reached the sunrise time (s50). When the current time reaches the sunrise time, the optical sensor deactivation and the ventilation control are performed (s60). If the current time is before the sunrise time, the process returns to step s40 of comparing the measured solar radiation amount with the reference solar radiation value.

That is, when one of the cases where the solar radiation amount exceeds the reference solar radiation value or the current time reaches the sunrise time, the optical sensor is deactivated and the ventilation regulation control is performed.

Accordingly, even if accurate measurement of radiation dose is not possible due to damage of the optical sensor, ventilation control is performed when a predetermined time has elapsed, so that the control of the internal environment of the greenhouse for improving the productivity of the crop can be smoothly performed.

Furthermore, since the ventilation control is performed when a certain time has elapsed even when a sufficient amount of solar radiation is not measured due to weather or rain, the humidity and temperature of the inside of the greenhouse can be controlled by controlling the opening width of the ventilation opening It can be smoothly performed.

In the case of controlling the cycle of ventilating and maintaining the inside of the greenhouse by only the irradiation amount measured by the optical sensor, the ventilation and warm-up cycle are changed greatly due to malfunction of the optical sensor, There is a problem that the productivity is lowered.

However, since the ventilation control is performed when a certain time elapses even when the accurate irradiation amount measurement is impossible due to the failure of the optical sensor due to the failure of the optical sensor, the present invention can provide a balanced internal environment control in accordance with the growth cycle of the crop, .

On the other hand, if the current time is reached before the predetermined transition time from the sunset time (s70), an optical sensor for measuring the solar radiation amount outside the greenhouse is activated (s80). If the solar radiation amount detected by the photosensor before the sunset time is less than the predetermined reference solar radiation value (s90), the optical sensor is deactivated and the ventilation control is ended (S110).

At this time, if the detected solar irradiance is not less than the predetermined reference solar irradiance value (s90), it is judged whether the current time has reached the sunset time (s100). When the current time reaches the sunset time, the optical sensor deactivation and the ventilation control are ended (S110). Here, if the current time is before the sunset time, the process returns to step s90 for comparing the measured solar radiation amount with the reference solar radiation value.

That is, when the solar radiation amount is less than the reference solar radiation value or the current time reaches the sunset time, the optical sensor is deactivated and the ventilation control is terminated.

Accordingly, even when accurate measurement of the solar radiation amount is impossible due to the damage of the optical sensor, ventilation control is terminated when a predetermined time elapses, so that the internal temperature of the greenhouse can be maintained smoothly to prevent cold damage of the crop, .

6 is a flowchart illustrating a control method of a hybrid environment control system according to another embodiment of the present invention. In the present embodiment, the basic configuration except for the subsequent control process is performed after the transition elapsed time from the sunrise time and the sunset time is the same as that of the above embodiment, so that the detailed description will be omitted.

As shown in FIG. 6, the control method of the hybrid environment control system 100 according to another embodiment of the present invention includes the following steps.

First, sunrise time and sunset time are input (s200). At this time, the time from the time when the transition time is subtracted from the sunrise time to the time when the transition elapsed time is added to the sunrise time can be set as the sunrise transition time zone. The time when the transition time is subtracted from the sunset time, Can be set to the sunset transition time zone.

In addition, the time zone between the time after the sunrise transition time zone and the time zone before the sunset transition time zone can be set as the daytime, and the time zone between the sunset transition time zone and the sunrise transition time zone can be set at night. At this time, a series of control processes may be performed corresponding to each time zone of the partitioned sunset transition time, nighttime, sunrise transition time, and daytime.

Then, it is judged whether or not the current time has reached the predetermined transition time from the sunrise time (s210), or whether the current time has reached the predetermined transition time from the sunset time (s260).

In this case, the step of determining the current time and performing the subsequent control process may include a step of determining whether the current time is the day or the current time is the nighttime. Accordingly, even if the control process of the hybrid environment control system 100 is activated during the daytime or at night, the subsequent control process (performing or terminating the ventilation control) is delayed until the current time reaches the sunrise transition time zone or the sunset transition time zone It can be performed smoothly.

On the other hand, if the current time is reached before the predetermined transition time from the sunrise time (s210), an optical sensor for measuring the solar radiation amount outside the greenhouse is activated (s220).

If the amount of solar radiation detected by the optical sensor is greater than or equal to a predetermined reference solar radiation value (S230) before the elapse of a preset transition time from the sunrise time, the optical sensor is deactivated and ventilation control is performed (S250).

Here, it is preferable that the ventilation regulation control includes a control process of opening the heat-insulating lid and adjusting the opening width of the ventilation window.

At this time, if the detected solar radiation amount is less than the predetermined reference solar radiation value (s230), it is determined whether the current time has reached the time since the transition elapsed time from the sunrise time (s240). When the current time reaches the time after the transition time from the sunrise time, the optical sensor deactivation and the ventilation control are performed (S250).

Here, the process returns to step S230 in which the measured solar radiation amount is compared with the reference solar radiation value in the case where the current time is the sunrise transition time zone between the transition time before the sunrise time and the transition elapsed time after the sunrise time.

At this time, if the transition elapsed time is set to 0, the same control process as in the above-described embodiment is performed. The transitional elapsed time may be set longer when the crop is sensitive to temperature.

That is, the ventilation control process is delayed until the sufficient amount of solar radiation is supplied to compensate the internal temperature loss due to the ventilation during the ventilation control process of opening the heat shield and controlling the opening width of the ventilation window. As a result, crop damage due to abrupt temperature changes can be prevented, and the productivity of the crop can be improved by controlling the internal environment more precisely.

In addition, since the subsequent control process is performed irrespective of the solar radiation amount after the elapse of the transition time from the sunrise time (s240), the control of the internal environment of the greenhouse can be smoothly performed without malfunction due to photo sensor malfunction or abrupt climatic change.

Furthermore, since the ventilation control is performed when a certain time has elapsed even when a sufficient amount of solar radiation is not measured due to weather or rain, the humidity and temperature of the inside of the greenhouse can be controlled by controlling the opening width of the ventilation opening It can be smoothly performed.

On the other hand, if the current time is reached before the predetermined transition time from the sunset time (s260), the optical sensor for measuring the solar radiation amount outside the greenhouse is activated (s270). If the solar radiation amount detected by the photosensor is less than the preset reference solar radiation value (s280) before the passage of the transition time from the sunset time, the optical sensor is deactivated and the ventilation control is terminated (s300).

At this time, if the detected solar irradiance is equal to or greater than the predetermined reference solar radiation value (s280), it is determined whether the current time has reached the time since the transition elapsed time from the sunset time (s290). Then, when the current time reaches the time after the transition elapsed time from the sunset time, the optical sensor deactivation and the ventilation control are terminated (s300).

Here, the process returns to step S280 in which the measured solar radiation amount is compared with the reference solar radiation value in the case where the current time is the sunset transition time between the transition time before the sunset time and the transition elapsed time after the sunset time.

That is, when the heat-insulating cover is closed and the ventilation control process is finished so that the ventilation window is closed, the shutoff is delayed and the ventilation control can be performed until a sufficient amount of solar radiation sufficient to maintain the internal temperature is supplied.

Accordingly, the time for irradiating light on the crop is maximized by opening the heat-insulating cover until the temperature inside the greenhouse can be maintained, thereby improving the productivity of the crop.

In addition, when the transition time elapses from the sunset time (s290), the ventilation control is terminated (s300) when a certain period of time has elapsed regardless of the irradiation amount, so that the internal temperature of the greenhouse can be smoothly maintained The reliability can be improved.

As described above, the present invention is not limited to the above-described embodiments, and variations and modifications may be made by those skilled in the art without departing from the scope of the present invention. And such modifications are within the scope of the present invention.

100: Complex environment control system 10: Ventilation control unit
20: optical sensor 30: data storage unit
50: Ventilation window 51: Power transmission means
70: greenhouse 71: frame
72: coating material 80: controller
90: Lid 91: opening / closing means
92: Auxiliary frame

Claims (5)

A first step of inputting a sunrise time at which a ventilation window of a greenhouse formed with a heat insulation space partitioned from the outside is opened and a sunset time at which the inside of the heat insulation space is kept warm;
An optical sensor for measuring an amount of solar radiation outside the greenhouse before a predetermined transition time from the sunrise time and the sunset time so that the opening and closing operation of the ventilation window and the time for inserting the inside of the heat keeping space are corrected according to the external environment condition of the greenhouse A second step to be activated; And
When the amount of solar radiation detected by the photosensor before the sunrise time is equal to or greater than a preset reference solar radiation value and when the solar radiation amount detected by the photosensor before the sunset time is less than the predetermined reference solar radiation value And a third step of terminating the ventilation control. The method according to claim 1,
Wherein the ventilation control is performed when the amount of solar radiation detected by the optical sensor is greater than or equal to the preset reference solar radiation value,
And terminating the ventilation control if the amount of solar radiation detected by the photosensor is less than the preset reference solar radiation value before the predetermined transition and time elapses after the sunset time. / RTI > 3. The method of claim 2,
Wherein the ventilation control is performed when the predetermined transition time elapses from the sunrise time and the ventilation control is ended when the predetermined transition time elapses from the sunset time. Control method of environmental control system. The method according to claim 1,
Wherein the ventilation control is performed when the sunrise time is reached, and the ventilation control is ended when the sunset time is reached. A greenhouse provided with a warming space in which crops are grown;
An optical sensor for measuring a solar radiation amount outside the greenhouse;
A ventilating / inserting means for ventilating and keeping a warm space inside the greenhouse; And
Wherein the light sensor is activated before a preset transition time from the sunrise time and the sunset time, and when the solar radiation amount detected by the photosensor before the sunrise time is equal to or greater than a preset reference solar radiation value, And a ventilation regulation control unit for terminating the ventilation regulation control when the solar radiation amount detected by the photosensor before the sunset time is less than the predetermined reference solar radiation value.

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