JP2021073894A - Ventilation window control system and ventilation window control method of agricultural greenhouse - Google Patents

Abstract

To provide a ventilation window control system and a ventilation window control method of an agricultural greenhouse which can perform highly accurate and finer opening/closing control corresponding to the state of wind direction and wind speed that change from time to time.SOLUTION: A ventilation window control system 10 of an agricultural greenhouse is constituted by including an anemoscope/anemometer 20, in-greenhouse sensor 30, and a ventilation window controller 50 that controls opening degree of a ventilation window 40. The ventilation window controller 50 comprises: an input part 51 to which wind direction measured value and wind speed measured value or the like measured by the anemoscope/anemometer 20 are input; a wind influence degree setting part 52 which sets an influence degree of wind; a calculation part 54 which calculates an influence value of wind; a determination part 53 which determines whether or not an environmental information measured value is within a range of a preset environmental information preset value; a ventilation window opening degree setting part 55 which sets a corrected opening degree of the ventilation window 40 when the environmental information measured value is outside a range of the environmental information preset value, and compensates the corrected opening degree by the influence value of wind to set a compensated opening degree; and an output part 56 which sends out the compensated opening degree to the ventilation window 40.SELECTED DRAWING: Figure 1

Description

The present invention relates to a ventilation window control system and a ventilation window control method for an agricultural greenhouse.

In the greenhouse, the temperature and humidity are measured so that the crops can be cultivated under the optimum environmental conditions, and ventilation windows (skylights, measuring windows, etc.), heat insulation curtains, blackout curtains, etc. So-called "environmental control" such as opening and closing work and operation of heaters and blowers is performed. Above all, the temperature and humidity in the greenhouse are generally controlled by opening and closing the ventilation window, but in the cultivation environment in the greenhouse, the influence of the wind blown into the greenhouse from the ventilation window is not small.

Therefore, various open / close control systems for ventilation windows (skylights, measuring windows, etc.) in consideration of the influence of wind direction and wind speed are disclosed (see, for example, Patent Document 1 and Patent Document 2). The rooftop window control device of the greenhouse disclosed in Patent Document 1 is a device for controlling the skyscrapers provided on both sides of the roof of the greenhouse, and includes a wind sensor that detects the direction and strength of the wind and a rain sensor that detects rain. , When the wind strength from the wind detected by the wind sensor exceeds the first set value, the sky window on the wind side is closed, and when the second set value larger than the first set value is exceeded, or It is characterized by being provided with an opening / closing control means for closing both sky windows when the rain sensor detects rain.

According to the skylight control device for a greenhouse according to Patent Document 1 having the above configuration, especially when the wind strength from the windward is strong to some extent and exceeds the first set value, the wind instead of closing both skylights. Only the upper skylight is closed, and the leeward skylight can be used for temperature control as it is, so the skylight can be effectively controlled according to the direction, strength, and rain conditions of the wind, and plants can be grown. It is stated that it can be placed in the optimum environmental conditions.

Further, the temperature control device for an agricultural facility disclosed in Patent Document 2 monitors at least the temperature, the air volume and the wind direction, operates a ventilation device provided on the roof portion and the side surface portion of the agricultural facility, and sends the outside air to the agricultural facility. In the temperature control device for agricultural facilities that takes in and shuts off the inside and controls the temperature in the agricultural facility, the ventilation devices on the roof and side surfaces are selected according to the conditions of temperature, air volume, and wind direction. It is characterized by optimal ventilation control.

According to the temperature control device for agricultural facilities according to Patent Document 2 having the above configuration, the influence of wind on agricultural products and agricultural facilities is reduced, the temperature bias in the agricultural facilities is eliminated, and efficient ventilation according to the situation is performed. It is stated that it has an excellent effect of controlling.

Japanese Unexamined Patent Publication No. 62-6614 JP-A-2018-78818

According to the greenhouse skylight control device disclosed in Patent Document 1 and the temperature control device for agricultural facilities disclosed in Patent Document 2, it is considered possible to control the opening and closing of the ventilation window to some extent by the wind direction and speed. To do. However, since these open / close controls are basically control methods that close the ventilation window when it is directly affected by the wind, fine open / close control is applied to the wind acting on the ventilation window from all directions. It's difficult to do.

In particular, since the wind direction and speed change from moment to moment, if it becomes possible to perform finer opening and closing control with higher accuracy, damage to the ventilation window can be prevented and the accuracy of environmental control in the house is improved. However, it is possible to provide a more comfortable cultivation environment for crops.

Therefore, in view of the above problems, the inventors of the present application have developed a ventilation window control system for an agricultural house that can perform more accurate and detailed opening / closing control according to the ever-changing wind direction and speed. The present invention has been reached as a result of repeated studies to provide a ventilation window control method.

That is, the present invention is a ventilation window control system that optimally and automatically controls the opening degree of the ventilation window based on environmental information inside and outside the agricultural house, and at least the wind direction and wind speed meter installed outside the house and the inside of the house. The ventilation window control device includes a sensor in the house for measuring the environmental information of the above and a ventilation window control device for controlling the opening degree of the ventilation window, and the ventilation window control device is a wind direction measurement value measured by the wind direction wind speed meter. And the input unit where the wind speed measurement value, the environmental information measurement value in the house measured by the sensor in the house, and the current opening degree of the ventilation window are input, and the wind most when the ventilation window is open. A wind influence setting unit that divides all directions on the horizontal plane into a plurality of directions and sets the influence of the wind in each direction based on the direction affected by the above, and the wind direction measurement value and the wind velocity measurement value. And the calculation unit that calculates the influence value of the wind from the influence degree of the wind, the environmental information measurement value and the environment information setting value in the house set in advance are compared, and the environment information measurement value is obtained. A determination unit that determines whether or not it is within the range of the environmental information set value, and the ventilation window so as to be within the range of the environmental information set value when the environmental information measured value is outside the range of the environmental information set value. A ventilation window opening setting unit that sets the correction opening of the above and corrects the correction opening with the influence value of the wind to set the correction opening of the ventilation window, and the correction opening to the ventilation window. It is characterized by including an output unit for sending.

Further, in the ventilation window control system of the agricultural house of the present invention, the outside air temperature measured outside the house and the ventilation window control device have a predetermined outside air temperature based on the relationship between the outside air temperature and the opening degree of the ventilation window. The outside air temperature influence degree setting unit for presetting the outside air temperature influence degree for each measurement range is further included, and the outside air temperature measurement value measured by the outside air temperature meter is further input to the input unit. The calculation unit further calculates the outside air temperature influence value from the outside air temperature measurement value and the outside air temperature influence degree, and the ventilation window opening degree setting unit further corrects the correction opening degree by the outside air temperature influence value. Then, the re-correction opening degree is set.

Further, the present invention is a ventilation window control method that optimally and automatically controls the opening degree of the ventilation window based on the environmental information inside and outside the agricultural house, and inputs the environmental information setting value in the house. Based on the step and the direction most affected by the wind when the ventilation window is open, all directions on the horizontal plane are divided into a plurality of directions, and the degree of influence of the wind is set for each direction. Acquire the setting step, the wind direction measurement value and the wind velocity measurement value measured by the anemometer installed outside the house, the environmental information measurement value measured by the sensor in the house, and the current opening degree of the ventilation window. The information acquisition step, the calculation step of calculating the wind influence value from the wind direction measurement value, the wind velocity measurement value, and the wind influence degree, and the environmental information measurement value and the environment information setting value are compared. , A determination step for determining whether or not the environmental information measurement value is within the range of the environment information setting value, and when the environment information measurement value is outside the range of the environment information setting value, the environment information measurement value is Ventilation that sets the correction opening of the ventilation window so as to fall within the range of the environment information set value, and corrects the correction opening by the influence value of the wind to set the correction opening of the ventilation window. It is characterized by including a window opening degree setting step and an output step of sending the corrected opening degree to the ventilation window.

Further, in the influence degree setting step according to the ventilation window control method of the present invention, the outside air temperature influence degree is set for each predetermined outside air temperature measurement range from the relationship between the outside air temperature outside the house and the opening degree of the ventilation window. Then, in the information acquisition step, the outside air temperature measurement value measured by the outside air temperature meter installed outside the house is further acquired, and in the calculation step, the outside air temperature measurement value and the outside air temperature influence degree are further excluded. The temperature influence value is calculated, and in the ventilation window opening degree setting step, the correction opening degree of the ventilation window is further corrected by the outside air temperature influence value to set the re-correction opening degree.

According to the ventilation window control system and the ventilation window control method of the agricultural house of the present invention, it is possible to perform more accurate and fine opening / closing control according to the situation of the wind direction and the wind speed that changes every moment. Therefore, it is of course possible to prevent the ventilation window from being damaged by the influence of the wind, but it is also possible to suppress the influence of the wind on the crops and to control the environment inside the house with higher accuracy. It is possible to provide a more comfortable cultivation environment for crops.

Further, in the ventilation window control system and the ventilation window control method of the agricultural greenhouse of the present invention, the influence of the wind on the agricultural products can be suppressed by further controlling the opening and closing of the ventilation window in consideration of the influence of the outside temperature. At the same time, it is possible to control the environment inside the house with even higher accuracy.

It is a schematic block diagram which shows the whole structure of the ventilation window control system of the agricultural house which concerns on one Embodiment of this invention. It is a front view of the agricultural house which concerns on one Embodiment of this invention. It is a top view of the agricultural greenhouse shown in FIG. It is a schematic block diagram which shows the whole structure of the ventilation window control system of the agricultural house which concerns on other embodiment of this invention. It is a schematic flow chart which shows the ventilation window control method by the ventilation window control system of the agricultural house shown in FIG. It is a schematic flow chart which shows the ventilation window control method by the ventilation window control system of the agricultural house shown in FIG.

Hereinafter, embodiments of the ventilation window control system for agricultural greenhouses of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an overall configuration of a ventilation window control system 10 for an agricultural greenhouse according to an embodiment of the present invention. As shown in the figure, the ventilation window control system 10 of the present embodiment optimally automatically controls the opening degree of the ventilation window 40 based on the environmental information inside and outside the agricultural house 1 as shown in FIG. The system includes a wind direction and wind speed meter 20 mainly installed outside the house 1, a sensor 30 inside the house that measures environmental information inside the house 1, and a ventilation window control device 50 that controls the opening degree of the ventilation window 40. Is configured to include.

Usually, the environmental information in the house 1 is very diverse, and includes, for example, the temperature, humidity, amount of solar radiation, medium temperature, plant temperature, irrigation temperature, soil moisture, CO ₂ concentration, irrigation amount, etc. in the house 1. Be done. These environmental information are measured by various in-house sensors 30 installed in the house 1, but in the present embodiment, the most common thermometer is installed to measure the temperature in the house 1 (house temperature). Measure.

The ventilation window control device 50 is a control device for automatically controlling the opening degree of the ventilation window 40, and includes at least an input unit 51, a wind influence setting unit 52, a determination unit 53, a calculation unit 54, and ventilation. A window opening degree setting unit 55 and an output unit 56 are provided.

The input unit 51 related to the ventilation window control device 50 has a wind direction measured value and a wind speed measured value measured by an anemometer 20 installed outside the house 1 and an environment inside the house 1 measured by a sensor 30 in the house. The information measurement value and the state (current opening degree) of the ventilation window 40 are input. For example, when the sensor 30 in the house is a thermometer, the temperature inside the house 1 is measured as an environmental information measurement value and input to the input unit 51.

The wind influence setting unit 52 divides all directions on the horizontal plane into a plurality of directions based on the direction most affected by the wind when the ventilation window 40 is open, and sets the wind influence in each direction. Set. More specifically, in the house 1 shown in FIG. 2, when the ventilation window 40 is in the open state, the wind is most affected by the wind from the right to the left (A direction in the figure) in the figure. It is a case of blowing. FIG. 3 is a plan view of the house 1 shown in FIG. 2, and FIG. 2 is a front view of the house 1 shown in FIG. 3 as viewed from the lower side in the drawing. As shown in FIG. 3, in the house 1, when the ventilation window 40 is in the open state, it is most affected by the wind from the A direction (referred to as the easterly wind in the figure).

Therefore, in the house 1 according to the present embodiment, all directions on the horizontal plane of the house 1 are divided into a plurality of directions with the east direction as a reference. In FIG. 3, all directions on the horizontal plane of the house 1 are divided into four directions, and the degree of influence of the wind in the east direction (direction E) is set to 1.0 with the east direction E most affected by the wind as a reference. .. Then, the degree of influence of the wind in the west direction (direction W), which is least affected by the wind on the direction E, is set to, for example, 0.2. Also, in the north direction (direction N) and south direction (direction S), which are less affected by the wind than in the direction E, for example, the wind in the direction N is taken into consideration in consideration of the terrain and climate in which the house 1 is installed. The degree of influence of is set to 0.5, and the degree of influence of the wind in the direction S is set to 0.3. In this way, by presetting the influence of the wind acting on the ventilation window 40 in the wind influence degree setting unit 52 as the “wind influence degree”, the ventilation window 40 is set in the ventilation window opening degree setting unit 55, which will be described later. When setting the opening degree, it is possible to easily reflect the influence of the wind acting on the ventilation window 40. In the above-described embodiment, all directions on the horizontal plane in the house 1 are divided into four, the influence degree of the wind of the reference direction (direction E in this embodiment) is set to 1.0, and then other directions. The degree of influence of the wind related to the above was set as directional N = 0.5, directional S = 0.3, and directional W = 0.2, but the number of divisions is not limited to four, for example, two divisions. It may be divided into 5 or more. In addition, the degree of influence of the wind can be appropriately set according to the terrain, climate, season, etc. at the place where the house 1 is installed.

The determination unit 53 compares the environmental information measurement value in the house 1 with the preset environmental information setting value in the house 1, and determines whether or not the environmental information measurement value is within the range of the environmental information setting value. Is determined. For example, when it is desired to set the temperature inside the house 1 to 25 ° C., the temperature inside the target house 1 (environmental information set value = 25 ° C.) is input from the target environment information input unit 57 to the determination unit 53. Then, the environmental information measurement value (house 1 internal temperature) obtained from the input unit 51 is compared with the environmental information set value, and the environmental information measured value is within the range of the environmental information set value (for example, the house 1 internal temperature measured value). = 25 ° C ± 0.5 ° C) is determined.

The calculation unit 54 calculates the "wind influence value" from the wind direction measurement value and the wind speed measurement value measured by the wind direction anemometer 20 and the wind influence degree set by the wind influence degree setting unit 52. More specifically, for example, in FIG. 3, when the wind direction measurement value measured by the wind direction anemometer 20 is east-northeast, the east-northeast wind corresponds to the direction E, so that the degree of influence of the wind is 1.0. Then, when the degree of influence of the wind is determined from the measured value of the wind direction, the influence value of the wind is calculated from the degree of influence of the wind and the measured value of the wind speed. On the other hand, when the wind direction measurement value measured by the anemometer 20 is west-southwest, the wind in the west-southwest corresponds to the direction W, so the influence of the wind is 0.2, and the influence of this wind and the wind speed are measured. The influence value of the wind will be calculated from the value. When the influence values of these two winds are compared, the influence value of the wind related to the direction E becomes larger than the influence value of the wind related to the direction W. That is, by determining the degree of influence of the wind from the measured value of the wind direction and calculating the influence value of the wind from the measured value of the wind speed based on the degree of influence of the wind, even if the measured value of the same wind speed is obtained, it is determined from the measured value of the wind direction. The influence of the wind acting on the ventilation window 40 can be grasped in more detail and easily depending on the difference in the degree of influence of the wind.

In the ventilation window opening setting unit 55, when the determination unit 53 determines that the environmental information measurement value is out of the range of the environmental information setting value, the ventilation window 40 so that the environmental information measurement value falls within the range of the environmental information setting value. The corrected opening degree is set, and the corrected opening degree is corrected by the influence value of the wind to set the corrected opening degree of the ventilation window 40. For example, if the temperature inside the house 1 is set to 25 ° C ± 0.5 ° C as the environmental information set value and the temperature inside the house 1 (measured value of the environmental information) is 27 ° C, ventilation is performed to lower the temperature inside the house 1. The correction opening degree of the window 40 is set. Normally, this correction opening is larger than the current opening of the ventilation window 40 obtained from the input unit 51, but when the ventilation window 40 is in the open state, the wind speed from the direction most affected by the wind is large. In this case, if the ventilation window 40 is opened wide, a large amount of wind may flow into the house 1 at once, which may adversely affect a sudden temperature change or agricultural products.

Therefore, when the environmental information measured value is out of the range of the environmental information set value, the correction opening degree of the ventilation window 40 is first set so that the environmental information measured value falls within the range of the environmental information set value. Further, in the present embodiment, the correction opening degree of the ventilation window 40 is set by correcting the correction opening degree according to the influence value of the wind calculated by the calculation unit 54. If the ventilation window 40 is opened and closed only by the correction opening so that the measured value of the environmental information in the house 1 is simply within the range of the set value of the environmental information, the inside of the house 1 is more than expected due to the influence of the wind acting on the ventilation window 40. It is very likely that the environment will change and adversely affect agricultural products. However, by setting the correction opening degree obtained by correcting the correction opening degree with the influence value of the wind, it is possible to control the opening / closing of the ventilation window 40 in consideration of the influence of the wind acting on the ventilation window 40. It is possible to prevent sudden changes in the environment inside the house 1 and damage to the ventilation window 40 itself due to the wind flowing into the house 1.

Then, the correction opening degree set by the ventilation window opening degree setting unit 55 is sent to the output unit 56, and is sent from the output unit 56 to the ventilation window 40 related to the house 1. By automatically controlling the ventilation window 40 according to the correction opening degree, the cultivation environment in the house 1 is maintained in the cultivation environment input from the target environment information input unit 57.

As described above, according to the ventilation window control system 10 of the agricultural house according to the present embodiment, when the environmental information measurement value in the house 1 is out of the range of the environmental information setting value, the environmental information measurement value is the environmental information setting value. The correction opening of the ventilation window 40 is set so as to be within the range of, and the correction opening is corrected according to the influence value of the wind to set the correction opening to control the opening / closing of the ventilation window 40. It is possible to prevent sudden changes in the environment in the house 1 and damage to the ventilation window 40 itself due to the wind flowing from the window 40 into the house 1, and it is possible to control the cultivation environment in the house 1 optimally and with high accuracy.

Although one embodiment of the present invention has been described in detail above, in the ventilation window control system of the agricultural house of the present invention, the outside air temperature installed outside the house together with the wind direction measurement value and the wind velocity measurement value obtained from the anemometer. By acquiring the outside air temperature measurement value from the meter and further correcting the correction opening set in the ventilation window opening setting unit with the outside air temperature measurement value, not only the influence of the wind acting on the ventilation window 40 but also the outside air temperature It is possible to control the opening and closing of the ventilation window in consideration of the above.

More specifically, the ventilation window control system 11 of the agricultural house of the present embodiment shown in FIG. 4 has the same basic configuration as the ventilation window control system 10 of the agricultural house shown in FIG. Further, an outside temperature gauge 60 is included outside the house 1. The outside air temperature measurement value obtained by the outside air temperature meter 60 is input to the input unit 51 together with the wind direction measurement value, the wind speed measurement value, and the like acquired by the wind direction anemometer 20.

Further, the ventilation window control device 50a according to the ventilation window control system 11 of the agricultural house of the present embodiment includes an outside air temperature influence degree setting unit 52a, and the outside air temperature and the ventilation window 40 in the outside air temperature influence degree setting unit 52a. The "outside air temperature influence degree" of the ventilation window 40 is set in advance in relation to the opening degree of the ventilation window 40. Generally, when the outside air temperature is high, the opening degree of the ventilation window 40 is large, and when the outside air temperature is low, the opening degree is small. Therefore, the outside air temperature of the ventilation window 40 is determined in advance from the relationship between the outside air temperature and the opening degree of the ventilation window 40. By setting the degree of influence, it is possible to control the opening and closing of the ventilation window 40 in consideration of the outside air temperature.

In the present embodiment, the calculation unit 54 calculates the "wind influence value" from the wind direction measurement value and the wind speed measurement value measured by the wind direction anemometer 20 and the wind influence degree set by the wind influence degree setting unit 52. At the same time as the calculation, the "outside temperature influence value" is calculated from the outside temperature measurement value measured by the outside temperature gauge 60 and the outside temperature influence degree set by the outside temperature influence degree setting unit 52a.

Then, when the correction opening degree of the ventilation window 40 is set in the ventilation window opening degree setting unit 55a according to the present embodiment, that is, when the environmental information measurement value is out of the range of the environmental information setting value, the environmental information measurement value is first set. The correction opening of the ventilation window 40 is set so that is within the range of the environmental information set value, and further, the correction opening is corrected by the influence value of the wind calculated by the calculation unit 54 to correct the ventilation window 40. When the opening degree is set, this correction opening degree is further corrected by the outside temperature influence value obtained from the outside temperature measurement value and the outside temperature influence degree, and the re-correction opening degree of the ventilation window 40 is set. When the correction opening degree is set in the ventilation window opening degree setting unit 55a, the influence of the wind acting on the ventilation window 40 by further correcting this correction opening degree by the outside air temperature influence value and setting the re-correction opening degree. Not only that, it is possible to control the opening and closing of the ventilation window 40 in consideration of the outside air temperature, and it is possible to control the cultivation environment in the house 1 with higher accuracy.

The embodiment of the ventilation window control system for the agricultural house of the present invention has been described in detail above. Next, the environmental control method by the ventilation window control system 10 (see FIG. 1) for the agricultural house according to the embodiment of the present invention. Will be described in detail with reference to FIG. Here, in the ventilation window control system 10 of the agricultural house of the present embodiment, the anemometer 20 is installed outside the house 1, and the thermometer is installed inside the house 1 as the sensor 30 inside the house.

First, in step S11, the environment information setting value ES in the house 1 is input from the target environment information input unit 57. For example, in the present embodiment, the temperature inside the house 1 is set to 25 ° C., that is, the environmental information setting value ES = 25 ° C. is set.

Next, in step S12, the wind influence degree setting unit 52 sets the wind influence degree. In the present embodiment, for example, as shown in FIG. 3, the horizontal plane related to the house 1 is based on the direction most affected by the wind (direction E according to FIG. 3) when the ventilation window 40 related to the house 1 is in the open state. All the above directions are divided into four directions, and the degree of influence of the wind is set for each of the directions E, N, W, and S. In order to set the opening degree of the ventilation window 40 in consideration of the influence of the wind on the ventilation window 40 by proportional control, for example, the degree of influence of the wind in the direction E most affected by the wind is set to the direction E = 1.0. As a reference, the degree of influence of wind in other directions N, W, and S is, for example, direction N = 0.5, direction S = 0.3, in consideration of the topography, climate, season, etc. at the installation location of the house 1. The direction W = 0.2 is set.

In step S13, the wind direction measurement value dm and the wind speed measurement value sm measured by the anemometer 20, the environmental information measurement value tm (the temperature inside the house 1 in the present embodiment) measured by the sensor 30 in the house, and the ventilation window. The current opening degree co of 40 is input to the input unit 51.

In step S14, the wind influence value wi is calculated from the wind direction measurement value dm and the wind speed measurement value sm acquired from the input unit 51 in the calculation unit 54 and the wind influence degree set in the wind influence degree setting unit 52. To. More specifically, for example, in FIG. 3, when the wind direction measurement value dm measured by the anemometer 20 = south-southeast, the south-southeast wind corresponds to the direction S, so the degree of influence of the wind is 0.3. .. Then, when the wind influence degree is determined to be the direction S = 0.3 from the wind direction measurement value dm, the wind influence value wi is calculated from the wind influence degree and the wind speed measurement value sm.

On the other hand, in step S15, the determination unit 53 compares the environmental information measurement value tm in the house 1 with the preset environmental information setting value ES in the house 1, and the environmental information measurement value tm sets the environmental information. Whether or not it is within the range of the value ES is determined. For example, when the environmental information set value ES (the temperature inside the house 1 in this embodiment) is set to 25 ° C. and the range of ± 0.5 ° C. is set within the range of the environmental information set value ES, the environmental information measured value tm = If the temperature is between 24.5 ° C and 25.5 ° C, the determination unit 53 determines that the environmental information measurement value tm is within the range of the environmental information set value ES.

If it is determined in step S15 that the environmental information measurement value tm is within the range of the environmental information set value ES, the correction opening so of the ventilation window 40 is not set, and the opening / closing control of the ventilation window 40 is terminated in step S18. If not, the process returns to step S13.

On the other hand, if it is determined in step S15 that the environmental information measurement value tm is outside the range of the environmental information set value ES, the environmental information measurement value tm falls within the range of the environmental information set value ES in the following step S16. As described above, in the ventilation window opening degree setting unit 55, the correction opening degree so of the ventilation window 40 is first set. The correction opening so can be set by using the conventional opening / closing control method of the ventilation window 40, and when the environmental information measurement value tm and the environmental information set value ES are the temperature inside the house 1, the environmental information is generally set. When the measured value tm exceeds the range of the environmental information set value ES, the correction opening so of the ventilation window 40 is set to be larger than the current opening co, and conversely, the environmental information measured value tm falls below the range of the environmental information set value ES. In this case, the correction opening so of the ventilation window 40 is set to be smaller than the current opening co.

Further, in step S16 according to the present embodiment, the correction opening ho of the ventilation window 40 is set by correcting the correction opening so of the ventilation window 40 by the wind influence value wi calculated in step S14. To. Correct the ventilation window 40 so that the measured value tm of the environmental information in the house 1 is within the range of the set value ES of the environmental information. There is a very high possibility that the environment inside 1 will change and adversely affect agricultural products. Therefore, by correcting the correction opening so of the ventilation window 40 once set by the influence value wi of the wind and setting the correction opening ho, the ventilation window 40 is opened and closed in consideration of the influence of the wind acting on the ventilation window 40. Control is possible, and it is possible to prevent sudden environmental changes in the house 1 and damage to the ventilation window 40 itself due to the wind flowing into the house 1 from the ventilation window 40.

The correction opening ho of the ventilation window 40 set in step S16 is sent to the output unit 56, and the correction opening ho of the ventilation window 40 sent from the ventilation window opening setting unit 55 to the output unit 56 in step S17 is , The output unit 56 outputs to the ventilation window 40 related to the house 1. Then, the ventilation window 40 is automatically controlled by the correction opening degree ho, so that the cultivation environment in the house 1 is maintained within the range of the environmental information set value ES.

As described above, in the ventilation window control method of the agricultural greenhouse according to the present embodiment, when it is determined that the environmental information measurement value tm is outside the range of the environmental information set value ES, the environmental information measurement value tm is the environmental information. After setting the correction opening so of the ventilation window 40 so as to be within the range of the set value ES, the correction opening so is corrected by the influence value wi of the wind, and the correction opening ho of the ventilation window 40 is set. The opening / closing control of the ventilation window 40 is performed by the correction opening degree ho. When controlling the opening and closing of the ventilation window 40, the cultivation environment in the house 1 is easily affected by the wind flowing from the ventilation window 40 into the house 1, and sudden environmental changes in the house 1 and damage to the ventilation window 40 itself are caused. There is a risk of inviting. However, according to the ventilation window control method of the agricultural greenhouse of the present embodiment, when controlling the opening and closing of the ventilation window 40, the correction opening ho of the ventilation window 40 is adjusted in consideration of the influence of the wind acting on the ventilation window 40. Since it is set, it is possible to realize optimal and highly accurate environmental control in the house 1.

The ventilation window control method by the ventilation window control system 10 of the agricultural house according to the embodiment of the present invention has been described in detail above. Next, the ventilation window control system 11 of the agricultural house according to another embodiment of the present invention has been used. The ventilation window control method will be described.

In the environmental control method by the ventilation window control system 11 of the agricultural house according to the present embodiment shown in FIG. 6, the basic flow is the environmental control method by the ventilation window control system 10 of the agricultural house according to the above embodiment. Similarly, first, in step S11, the environment information setting value ES in the house 1 is input from the target environment information input unit 57.

Next, in step S12a, the degree of influence of the wind is set and the degree of influence of the outside air temperature is set. Generally, when the outside air temperature is high, the opening degree of the ventilation window 40 is large, and when the outside air temperature is low, the opening degree is also small. Arbitrarily set the degree of influence of outside air temperature according to the measurement range of air temperature.

Next, in step S13a, the wind direction measurement value dm and the wind speed measurement value sm measured by the anemometer 20 and the environmental information measurement value tm (the temperature inside the house 1 in the present embodiment) measured by the in-house sensor 30. The current opening degree co of the ventilation window 40 is acquired, and the outside temperature measurement value ot measured by the outside temperature gauge 60 installed outside the house 1 is acquired and input to the input unit 51.

Then, in step S14a, the wind influence value wi is calculated from the wind direction measurement value dm, the wind speed measurement value sm, and the wind influence degree, and the outside air temperature influence value is calculated from the outside air temperature measurement value ot and the outside air temperature influence degree. oi is calculated.

In step S15, if it is determined whether or not the environmental information measurement value tm is within the range of the environmental information set value ES, and if it is determined that the environmental information measured value tm is outside the range of the environmental information set value ES, In the following step S16a, the correction opening so of the ventilation window 40 is first set so that the environmental information measurement value tm falls within the range of the environmental information set value ES, and then the correction opening so of the ventilation window 40 is set. The correction opening ho of the ventilation window 40 is set by correcting with the wind influence value wi calculated in step S14a.

Further, in step S16a according to the present embodiment, the correction opening ho of the ventilation window 40 is further corrected by the outside air temperature influence value oi calculated from the outside air temperature measurement value ot and the outside air temperature influence degree, thereby ventilating. The recorrection opening degree ro of the window 40 is set and sent to the output unit 56. In this way, when the correction opening ho of the ventilation window 40 is set in the ventilation window opening opening setting unit 55a, the correction opening ho of the ventilation window 40 is further corrected by the outside temperature influence value oi and the correction opening ho is re-corrected. By setting ro, it is possible to control the opening and closing of the ventilation window 40 in consideration of not only the influence of the wind acting on the ventilation window 40 but also the outside temperature.

Finally, in step S17a, the re-correction opening degree ro of the ventilation window 40 sent from the ventilation window opening degree setting unit 55 to the output unit 56 is output from the output unit 56 to the ventilation window 40 related to the house 1 and re-corrected. The ventilation window 40 is automatically controlled based on the correction opening degree ro. By automatically controlling the ventilation window 40 with the re-correction opening degree ro, the cultivation environment in the house 1 is maintained within the range of the environmental information set value ES.

As described above, in the present embodiment, in the opening / closing control of the ventilation window 40, the re-correction opening degree ro is set in consideration of not only the influence of the wind acting on the ventilation window 40 but also the influence of the outside air temperature outside the house 1. Therefore, the cultivation environment in the house 1 can be controlled with higher accuracy.

The ventilation window control system of the agricultural house and the ventilation window control method based on the ventilation window control system according to the embodiment of the present invention exemplified above should not be construed as substantially limiting the technical idea of the present invention. The present invention can be carried out with appropriate improvements, changes or additions by the creativity and ingenuity of those skilled in the art without departing from the gist thereof.

10, 11: Ventilation window control system 20: Wind direction wind speed meter 30: House sensor 40: Ventilation window 50, 50a: Ventilation window control device 51: Input unit 52: Wind influence degree setting unit 52a: Outside temperature influence degree setting unit 53 : Judgment unit 54: Calculation unit 55, 55a: Ventilation window opening setting unit 56: Output unit 57: Target environmental information input unit 60: Outside temperature gauge ES: Environmental information set value co: Ventilation window current opening dm: Wind direction Measured value ho: Ventilation window correction opening oi: Outside temperature influence value ot: Outside temperature measurement value ro: Ventilation window re-correction opening sm: Wind velocity measurement value so: Ventilation window correction opening tm: Environmental information measurement value wi: Wind influence value

Claims (4)

It is a ventilation window control system that optimally and automatically controls the opening of the ventilation window based on environmental information inside and outside the agricultural greenhouse.
At least, the anemometer installed outside the house,
A sensor inside the house that measures environmental information inside the house,
A ventilation window control device that controls the opening degree of the ventilation window,
Consists of, including
The ventilation window control device has a wind direction measurement value and a wind speed measurement value measured by the wind direction anemometer, an environmental information measurement value in the house measured by the in-house sensor, and a current opening degree of the ventilation window. The input part to be input and
A wind influence setting unit that divides all directions on the horizontal plane into a plurality of directions based on the direction most affected by the wind when the ventilation window is open, and sets the influence of the wind in each direction. When,
A calculation unit that calculates the wind influence value from the wind direction measurement value, the wind speed measurement value, and the wind influence degree.
A determination unit that compares the environmental information measurement value with a preset environmental information setting value in the house and determines whether or not the environmental information measurement value is within the range of the environmental information setting value.
When the environmental information measurement value is outside the range of the environmental information set value, the correction opening degree of the ventilation window is set so as to be within the range of the environment information set value, and the correction opening degree is affected by the wind. Ventilation window opening setting unit that corrects with a value and sets the correction opening of the ventilation window,
An output unit that sends the corrected opening to the ventilation window,
Ventilation window control system for agricultural greenhouses, characterized by being equipped with. With an outside temperature gauge installed outside the house,
The ventilation window control device has an outside air temperature influence degree setting unit that presets the outside air temperature influence degree for each predetermined outside air temperature measurement range based on the relationship between the outside air temperature and the opening degree of the ventilation window.
Consists of further
The outside air temperature measurement value measured by the outside air temperature meter is further input to the input unit, and the outside air temperature measurement value is further input.
In the calculation unit, the outside air temperature influence value is further calculated from the outside air temperature measurement value and the outside air temperature influence degree.
The ventilation window control system for an agricultural house according to claim 1, wherein in the ventilation window opening degree setting unit, the correction opening degree is further corrected by the outside air temperature influence value to set the re-correction opening degree. .. It is a ventilation window control method that optimally and automatically controls the opening of the ventilation window based on environmental information inside and outside the agricultural greenhouse.
Entering the environmental information setting value in the house The environmental information setting value input step and
With reference to the direction most affected by the wind when the ventilation window is open, all directions on the horizontal plane are divided into a plurality of directions, and the degree of influence of the wind is set in each direction. ,
An information acquisition step for acquiring the wind direction measurement value and the wind speed measurement value measured by the wind direction anemometer installed outside the house, the environmental information measurement value measured by the sensor in the house, and the current opening degree of the ventilation window. ,
A calculation step for calculating the wind influence value from the wind direction measurement value, the wind speed measurement value, and the wind influence degree, and
A determination step of comparing the environmental information measured value with the environmental information set value to determine whether or not the environmental information measured value is within the range of the environmental information set value.
When the environmental information measurement value is outside the range of the environmental information set value, the correction opening degree of the ventilation window is set and the correction is made so that the environmental information measurement value falls within the range of the environmental information set value. A ventilation window opening setting step that corrects the opening degree by the influence value of the wind and sets the correction opening degree of the ventilation window, and
A ventilation window control method including an output step of sending the corrected opening degree to the ventilation window. In the influence degree setting step, the outside air temperature influence degree is further set for each predetermined measurement range of the outside air temperature from the relationship between the outside air temperature outside the house and the opening degree of the ventilation window.
In the information acquisition step, the outside air temperature measurement value measured by the outside air temperature meter installed outside the house is further acquired.
In the calculation step, the outside air temperature influence value is further calculated from the outside air temperature measurement value and the outside air temperature influence degree.
The ventilation window control method according to claim 3, wherein in the ventilation window opening degree setting step, the correction opening degree of the ventilation window is further corrected by the outside air temperature influence value to set the re-correction opening degree.

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