JPS6344819A - Apparatus for automatically controlling temperature and humidity in vinyl house - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention is designed to maintain the temperature and humidity inside the greenhouse at the most appropriate temperature and humidity when growing fruits or other agricultural products for cultivation in a vinyl greenhouse. , relates to a device that automatically adjusts the opening and closing of side vinyl by remote control.

(Conventional technology) Cultivation operations in vinyl greenhouses have become more popular year by year as a heat-insulating measure for fruit cultivation and other agricultural products, and have become larger and more mechanized with large capital investments in equipment such as heat-insulating boilers. On the other hand, the temperature inside the house increases,
Countermeasures against overtemperatures require manual labor and time, such as opening/closing the entrance/exit of the vinyl house based on input from seasonal workers, winding up/unrolling the vinyl on the side of the house, and ventilating the greenhouse. There is.

Therefore, in order to reduce the labor force by mechanizing the manual ventilation process, we have introduced a system in which the ventilation openings on the sides or ceiling of the greenhouse are opened and closed in conjunction with an electric motor. A labor-saving measure to automatically operate an electric motor by combining
I'm starting to think about it.

(Problems to be solved by the invention) However, the conventional system has the following problems: 1) Because it uses a three-phase AC power source for the electric motor that opens and closes the vinyl opening, wiring and operation are difficult and can be dangerous. Even simple repair work requires specialized knowledge.

2) High humidity exclusion control is not possible.

3) The heating boiler cannot be started.

4) Since there is no remote monitoring circuit, normality cannot be confirmed unless it is a cultivation site.

There were other drawbacks.

(Means for Solving the Problems) In order to solve these drawbacks, the automatic temperature and humidity control device for greenhouses of the present invention is equipped with a computer, temperature, humidity, and underground temperature detectors installed in each greenhouse; A wind direction/speed detector, an outside temperature detector, and a rainfall detector installed outside the greenhouse are connected with signal lines, and the detection information and cultivation information such as constants output by each detector can be transmitted directly or directly from a remote monitoring computer. A control signal based on control information input into a control computer and processed by a program rotates the drive shaft of an electric drive device with a brake installed outside the opening/closing part of each greenhouse, and is connected to this drive shaft by a universal joint. A series of systems that rotate the vinyl greenhouse opening/closing pipe and open/close the vinyl greenhouse ventilation opening/closing part wrapped around the opening/closing pipe can control the temperature, humidity, rainfall, etc. inside the greenhouse at a location other than the cultivation site such as the grower's home. The present invention is characterized by monitoring and always automatically controlling to automatically maintain the appropriate temperature, humidity, and prevention of rainwater intrusion required by crops in the greenhouse, and monitoring the control status from a remote location.

(Function) According to the present invention, temperature, humidity, and rain intrusion inside a greenhouse can be rationally managed by using each device as one system, and automatic remote control and control are possible. Remotely monitor driving status at all times from within your home, etc.

(Example) The present invention will be explained below with reference to the drawings.

FIG. 1 shows a block diagram of the device of the invention.

The detection section of this device consists of a wind direction detector 1, a wind speed detector 2, an outside temperature detector 3, a rainfall detector 4, a temperature detector 5, a humidity detector 6, and an underground temperature detector 7. The detector 5, humidity detector 6, and underground temperature detector 7 are installed inside the greenhouse, and the wind direction detector, hanging device 1, wind speed detector 2, outside temperature detector 3, and rainfall detector 4 are installed outside the greenhouse. It is something that will be done.

Detection data from each detector is input to the control computer 8 via an outdoor line (optical fiber cable, etc.). This control computer 8 is a remote monitoring computer 9.
is combined with

A control computer 8 is installed near the greenhouse, and the input information from each detector and cultivation information (constants, etc.) are input from the remote monitoring computer 9 or directly into the control computer 8.

The control computer 8 programs and processes these various pieces of information, and outputs output information such as opening/closing output information for temperature, humidity, rainfall, wind direction, wind speed, etc. to the electric drive device with brake 10, and also outputs detection and output information to the remote monitoring computer 9. It is sent and displayed as control status information.

The program processing of the control computer analyzes and processes the input information, and the software is designed to set the opening/closing width of the opening/closing part of the greenhouse to any stage according to changes in wind direction, wind speed, temperature, humidity, and strength. The output information is outputted to the remote monitoring computer 9 and sent as a control signal to the electric drive device with a brake to drive it. The upper limit alarm value and lower limit alarm value of the temperature and humidity inside the greenhouse are set in the control computer 8, and when the set values are exceeded, an alarm sound is emitted and alarm information is sent to the remote monitoring CombiUnique 9.

The remote monitoring computer 9 is installed at any location such as the grower's home, and in addition to inputting cultivation information (constants, etc.) and manual operation information input by the grower, it also has a series of detectors for detecting wind direction, wind speed, temperature and humidity, etc. Information and control information is input from the control computer 8 to monitor and display the situation inside and outside the greenhouse, and constantly monitors and displays each detector, control computer, vinyl opening/closing device,
The system monitors the normality of the electric drive device with a brake, and if an abnormality occurs, an alarm sounds to alert the grower.

The electric drive device 10 with a brake (not shown) is composed of a braking section, an electric section, a deceleration section, a drive shaft rotation angle detection section, and an opening/closing upper/lower limit positioning section, and is controlled by a control computer 8.
The electric part of this device is operated by the control signal from the electric part, and the gear directly connected to the drive shaft of the electric part and the reduction gear are interlocked to rotate the drive shaft of the electric drive device with a brake.

Further, the rotation angle detection section generates a continuous electric signal using a cam and a switch that operate according to the rotation of the drive shaft, and sends this signal to the control computer as a step width signal for the vinyl opening/closing section.

Note that the electric drive device 10 with a brake is of a forward and reverse rotation type,
In addition, a brake is added to prevent the vinyl opening/closing pipe from idling due to the weight of the vinyl wrapping when the drive is stopped, so that the vinyl will not be rewound and blocked when the vinyl is opened.

The vinyl opening/closing pipe 12 connected to the drive shaft of the electric drive device 10 with a brake by a universal joint 11 rotates with the rotation of the electric drive device 10 with a brake, and winds up or unwinds the vinyl at the opening/closing part of the greenhouse. Ventilate the inside of the house to adjust temperature and humidity and prevent rain from entering.

The degree of opening and closing of the opening/closing part vinyl is controlled by the control computer 8, and at the same time, the opening/closing positioning plate and the opening/closing positioning moving plate of this device are used to double the safety of the operation.

The opening/closing upper and lower limit positioning plates are the plates that determine the upper and lower opening width limits of the side vinyl.If you use a screwdriver to adjust the positioning threaded adjustment shaft that passes through this positioning plate by rotating it left and right with a screwdriver, you can open and close it. The positioning plate can be moved back and forth to determine the upper and lower limit positions for opening and closing the vinyl.

The opening/closing positioning moving plate installed between the opening/closing upper limit and lower limit positioning plates is threaded to fit the drive shaft of the electric drive device with a brake, and moves back and forth as the drive shaft rotates. When approaching , the limit switches attached to the upper and lower opening/closing limit positioning plates are pressed to operate, opening the operation signal circuit of the motorized part, and sending a limit position signal to the control computer 8, which activates the electric drive unit with brake. stops rotating.

In addition, in the event of a long-term power outage, etc., the vinyl can be opened and closed by hand using the provided handle (not shown).

Next, the program processing procedure will be explained with reference to FIGS. 2 to 6.

Prior to explaining the program processing, the output information of the wind direction detector will be explained.

The output information of the wind direction detector is the output of 8 directions, 1,
2. 3. The direction of 4 is the wind direction from the right side of the greenhouse, and 5. 6. 7. The program processing will be explained on the assumption that the grower has installed a wind direction detector near the greenhouse so that the direction No. 8 is the wind direction from the left side of the greenhouse.

1) Main program The main program will be explained with reference to FIG.

The control computer first determines whether the input/output devices around the control computer are normal (step 1), and if there is an abnormality, sounds an alarm buzzer (step 17).

Next, various detector output information including various cultivation information (various constant setting values) set by the cultivator, manual operation information, and power outage information is read (step 2).

After that, if the wind direction changes frequently from side to side during weak winds, the opening/closing width of the left and right vinyl opening/closing parts will be complicated and the durability of the electric drive device with brake will be significantly impaired, causing the wind speed to exceed the set value ( Step 3) If and
Every predetermined period of time (step 4), the wind direction is read (step 18).

Next, determine whether the various detectors are normal (Step 5)
Then, in step 19), an alarm buzzer is sounded if there is an abnormality or if there is a power outage.

Next, it is determined whether the temperature inside the house is greater than or equal to the upper limit alarm set value (Step 6) and whether it is less than or equal to the lower limit alarm set value (Step 7). If so, sound the alarm buzzer (
Step 20).

Next, it is determined whether the temperature inside the house is greater than or equal to the upper limit alarm set value (Step 8) and whether it is less than or equal to the lower limit alarm set value (Step 9). If the value is lower than that, an alarm buzzer sounds (step 21).

Next, it is determined whether the underground temperature is below the lower limit set value (step 10), and if the underground temperature is below the lower limit set value, the boiler is started (step 22), and the Hot water is supplied to the buried hot water pipe for heat retention.

Next, it is determined whether a manual operation command is included in the manual operation information (step 11), and if there is a command, manual operation is performed (FIG. 3).

On the other hand, if there is no manual operation command in step 11, it is determined whether it is raining (step 12), and if it is raining and there is a rain blockage command (step 23), blockage processing (Fig. 5) is performed.
I do.

On the other hand, if the conditions are not satisfied in step 12 or step 23, it is determined whether the temperature inside the house is equal to or higher than the upper limit set value (step 13). Figure).

Next, if there is a high humidity exclusion command in the cultivation information (step 14) and the outside temperature is higher than the set value for high humidity exclusion (step 24), when there is no rain (step 2
In 5), if the temperature inside the house is equal to the upper limit set value - (step 26), the high humidity removal opening/closing process (FIG. 4) is started, and it is stored that the humidity removal process is in progress.

After that, if the temperature inside the house decreases to below the upper limit set value (step 26), is equal to or higher than the lower limit set value (step 27), and if high humidity is being eliminated (step 28), opening/closing processing is performed to eliminate high humidity. (Figure 4) continues.

Note that if any of the conditions in steps 14, 24, 25, and 27 are unsatisfied, the memory during high humidity removal is restored.

Also, step 14. 24. 25. 27. 28
If any of these conditions is unsatisfied, it is determined whether the temperature inside the house is below the lower limit set value (step 15), and if it is below the lower limit set value, the closing process (FIG. 5) is performed.

Next, when the temperature inside the greenhouse is below the upper limit set value and above the lower limit set value (step 13.15), if a change occurs in the left and right wind direction (step 16), the opening/closing width of the left and right opening/closing parts of the greenhouse Opening/closing process (4th
Figure).

Note that if the manual operation, opening/closing process, and closing process are performed and a continuous electric signal of the rotation angle detection signal of the electric drive device with brake is generated (step 29), it is assumed that the operation is normal and the process returns to step 1.

On the other hand, no continuous electrical signal was generated (Sterap 29)
If so, it is assumed that the electric drive device with a brake is malfunctioning, an alarm buzzer is sounded (step 30), and the process returns to step 1.

2) Manual operation The manual operation program will be explained with reference to FIG.

Manual operation is a process that allows the vinyl opening/closing section on the specified side to be forcibly opened/closed by a specified rate without being influenced by information from each sensor or cultivation information, and to maintain that state. .

The maximum width is the width between the upper and lower limits of the opening/closing part of the vinyl opening, and is the width obtained by adding the overlap width to the maximum opening/closing width. The width of the opening/closing vinyl that overlaps the hem vinyl is set as the overlap width in order to minimize ventilation between the pipe and the hem vinyl cover laid from the pipe to the ground.

For manual operation, first, from the manual operation information, if the left side opening/closing designation (step 31) and the manual operation left side opening/closing rate (Q) are specified, the left side maximum width step number (X), The left side maximum opening/closing width step number (Z) is calculated based on the left side overlap width step number (H) (step 32), and then the manual operation left side opening/closing rate (Q>) and the left side maximum opening/closing width step number (Z) are calculated (step 32). ), and the number of left side overlap width steps (H) to calculate the number of left side opening/closing width steps (V) (step 33).

Next, compare the current number of left side opening width steps and the number of left side opening/closing width steps (V), and if the current number of left side opening width steps is small, increase the opening width and If the number of width steps is large, reduce the opening width,
The left side vinyl opening/closing portion is opened and closed until the current number of left side opening width steps and the number of left side opening/closing width steps (V) become the same number of steps (step 34).

On the other hand, if the right side opening/closing designation (step 35) and manual operation right side opening/closing rate (FQ) are specified from the manual operation information, the right side maximum width step number (FX), right side overlap width step Calculate the right side maximum opening/closing width step number (FZ) from the number (FH) (step 36)
Next, the number of right side opening/closing width steps (F
V) is calculated (step 37).

Next, compare the current number of right side opening width steps and the number of right side opening/closing width steps (FV), and if the current number of right side opening width steps is small, increase the opening width and If the number of width steps is large, reduce the opening width and open/close the right side vinyl opening/closing part until the current number of right side opening width steps and the number of right side opening/closing width steps (FV) become the same number of steps (step 38). .

3) Opening/closing process The opening/closing processing program will be explained with reference to FIG.

In the opening/closing process, first, if high humidity is not being excluded (step 41), outside temperature (■), wind speed, (j), non-wind side opening/closing width correction coefficient (α), wind direction side opening/closing width correction coefficient (β ) to calculate the opening/closing ratio.

The correction coefficients (α, β) are appropriately set by the grower depending on the degree of gap ventilation in the greenhouse and the region where crops are grown.The non-wind side opening/closing rate ( R) and wind direction side opening/closing ratio (FR
) calculations (steps 42 and 43) are performed.

On the other hand, during the high humidity exclusion operation, the opening/closing width is determined by changing the high humidity exclusion non-wind direction side opening/closing rate set by the grower together with the high humidity exclusion command to the non-wind direction side opening/closing rate (R) (step 59).
, High humidity exclusion Wind direction side opening/closing ratio (PR)
(step 60).

Next, the opening/closing ratio on the non-wind side (R) or the opening/closing ratio on the wind direction side (F
R,) exceeds 100% (step 44.45), the non-wind side opening/closing rate (R,) or the wind side opening/closing rate (FR
) is substituted with 100 (steps 61 and 62) to prevent excessive opening.

After that, it is determined whether the wind direction is right or left (step 46), and if it is determined that the wind direction is right, the number of maximum width steps on the non-wind side (M) is set to the maximum width step number on the left side, and the number of overlap width steps on the non-wind direction side. Assign the left side overlap width step number to (P), the right side maximum width step number to the wind direction side maximum width step number (FM), and the right side overlap width step number to the wind direction side overlap width step number (FP) (Step 63 . 64. 65. 66).

On the other hand, if it is determined in step 46 that the wind direction is to the left, the maximum width step number on the right side is set to the maximum width step number (M) on the non-wind direction side.
The number of overlap width steps on the non-wind side (P), the number of right side overlap width steps, and the maximum width step number on the wind direction side (
Steps 47.48 and 49.50) of substituting the left side maximum width step number for the left side maximum width step number (FM) and the left side overlap width step number for the wind direction side overlap width step number (FP).

Then, the maximum number of opening/closing width steps on the non-wind side (K) is calculated (step 51) using the number of maximum width steps on the non-wind side (M) and the number of overlap width steps on the non-wind side (P), and this number (K) and the number of non-wind side overlap width steps (P) are calculated. The number of opening/closing width steps (W) on the wind direction side is determined from the opening/closing ratio (R,) on the wind direction side (step 52), and this number (
fil) The vinyl opening/closing section on the non-wind direction side is opened and closed until the number of steps is the same as fil) (step 53).

Then, the vinyl opening/closing part on the non-wind direction side is fully opened (step 54), and it is determined whether the wind speed information (I) is equal to or higher than the opening prohibition setting value (cultivation information) to prevent damage to the greenhouse from strong winds (step 55). However, in the case of setting position 2, the vinyl opening/closing part on the wind direction side does not open/close.

On the other hand, if the wind speed information (I) is less than the opening prohibition setting value (cultivation information), the wind direction side is opened and closed, so the wind direction side maximum width step number (FM) and the wind direction side overlap width step number (F
P), calculate the wind direction side maximum opening/closing width step number (FK) (step 56), and calculate the wind direction side opening/closing width step number (FW) from this number (FK) and the wind direction side opening/closing ratio (FR) (step 57), open and close the vinyl opening/closing section on the wind direction side until the number of steps equal to this number (FW) is reached (step 58).
)do.

Also, the non-wind side vinyl opening/closing part is not fully opened (
Step 54) If the vinyl opening/closing part on the wind direction side is closed (
Step 67).

5) Blockage processing The blockage processing program will be explained with reference to FIG.

First, the wind direction is determined (step 72), and if the wind direction is determined to be right, if the right vinyl opening/closing part is open (step 77), the right side is closed (step 78), If the right side is not open, it is determined whether the left side is open (step 79),
If it is open, step 80) is performed to close the left vinyl opening/closing part.

On the other hand, if the wind direction is determined to be left (step 72),
If the left vinyl opening/closing part is open (Step 7)
3) Close the left side (step 74), and if the left side is not open, determine whether the right side is open (step 75), and if it is open, close the right vinyl. The section is closed (step 76).

Next, a computer program for remote monitoring will be explained.

This program will be explained with reference to FIG.

■) When the business end processing program starts, a menu will be displayed on the screen (
If the end menu is selected at step 81), it is determined that the job is finished (step 82), and the job is ended (step 91).

Furthermore, even if the remote monitoring computer has finished its work,
Vinyl opening/closing control is performed without any effect on the control computer.

2) When the remote monitoring menu is selected on the remote monitoring processing menu screen (step 81), a request is made to the control computer to send current control status information (step 83), and the control computer requests the following: Various information regarding the control status is transmitted.

The remote monitoring computer receives this information (step 84) and displays it on the screen (step 85).
You can return to step 3 and continue continuous remote monitoring work.

3) If manual operation is selected on the manual operation processing menu screen (step 81), remote monitoring processing (steps 82.83, 84.85)
), the side designation and opening/closing ratio of the vinyl opening/closing part to be manually opened/closed, and a manual operation start command are input (step 99), and the information is transmitted to the control computer (step 100).

The control computer receives this information, switches from automatic control to manual operation, and opens and closes the side openings of the greenhouse at the specified rate.

If the manual operation is to be canceled, the manual operation cancellation input is performed on the specified side of the vinyl house at the time of inputting the manual operation (step 99), and the information is transmitted to the control computer (step 100).

The control computer receives this information and switches the control of the specified side of the greenhouse from manual operation to automatic control.

After sending the command to start and cancel manual operation, the control computer is requested to send information in order to check the current manual operation status (step 101), and the information sent from the control computer is used for remote monitoring. The computer receives the information (step 102) and displays it on the screen (step 1).
03) L. The grower confirms the status of manual operation.

Next, it is determined whether the opening/closing width information transmitted from the control computer has reached the specified opening/closing ratio (step 104), and step 10 until the specified opening/closing ratio is reached.
1, a transmission request for manual operation status information is made, and the information is repeatedly displayed.

On the other hand, if the vinyl opening/closing width of the designated side surface reaches the designated opening/closing ratio, an instruction is received as to whether or not to end the manual operation (step 105); if not, the process returns to step 99 to continue the manual operation process.

Furthermore, when the manual operation process is finished (step 105), the screen returns to the menu selection screen (step 81).

4) Input cultivation information on the change processing menu selection screen (step 81),
When the change process is selected, the remote monitoring process (step 82,
83, 84, 85), input and change necessary information such as various cultivation information (operation N\, set temperature, humidity, wind direction, wind speed, opening/closing width, set value, etc.) based on the cultivation experience of the grower. Step 93) and sends this information to the control combination μm controller (Step 94)
It can be stored and memorized.

In addition, the remote monitoring computer requests the control computer to send information in order to confirm whether the sent information has been accurately received and stored (step 95);
The received information is displayed on the screen (step 97) and confirmed by the grower.

Note that if the cultivation information input and change processing is to be performed again (step 98), the process returns to step 93.

On the other hand, when inputting and changing cultivation information is to be completed (step 98), the process returns to the menu selection screen (step 81).

5) When information storage processing is selected on the information storage processing menu selection screen (step 81), remote monitoring processing (steps 82, 83, 84.
After performing step 85), various information regarding the cultivation status is stored in the storage device (step 92).

Thereafter, the process returns to step 83 and information storage processing can be performed continuously.

6) When information printing processing is selected on the information printing processing menu selection screen (step 81), remote monitoring processing (steps 82, 83, 84.
After 85), various information regarding the cultivation status is printed on paper using a printer (step 90).

Thereafter, the process returns to step 83 and information printing processing can be performed continuously.

7) Intermediate cancellation process If you wish to cancel the process during the various processes described above, press the cancel key switch and the menu display screen will appear (step 81).
Return processing can be canceled.

(Effects) As mentioned above, this device takes advantage of the computer functions and enables unmanned and labor-saving management of temperature and humidity inside greenhouses, as well as comprehensive management of wind direction, wind speed, underground temperature, and rainfall at a remote location. can.

The appropriate temperature and humidity inside the greenhouse are set based on the grower's experience, and by inputting the set values into the control computer, the vinyl opening/closing part is automatically operated at all times, and the temperature inside the greenhouse is controlled. It maintains proper humidity and maintains the best quality control of crops.

In addition, labor savings and time constraints for monitoring temperature and humidity conditions are not only managed by remote monitoring computers, but also by accumulating meteorological data for crop management on remote monitoring computers, and providing statistics and information. It is possible to easily compile and use the data created in the following year by converting it into graphics, and it can have a great effect on modern agricultural management.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an overview of the device of the present invention; Fig. 2 is the main routine of the control computer; Fig. 3 is the manual operation subroutine of the control computer; Fig. 4 is the opening/closing subroutine of the control computer; FIG. 5 is a flowchart showing the blockage processing subroutine of the control computer, and FIG. 6 is a flowchart showing the program of the remote monitoring computer. Patent applicant Kitanihon Tsushin Construction Co., Ltd. JP-A BaG3-
44819 (9). □

Claims (1)

[Claims] 1. A computer, a temperature, humidity, and underground temperature detector installed inside each greenhouse, a wind speed and direction detector, an outside air temperature detector, and a rainfall detector installed outside the greenhouse, respectively. Connected with signal lines, the detection information and cultivation information such as constants output by each detector are input from a remote monitoring computer or directly to a control computer, and each greenhouse is controlled by control signals based on program-processed control information. The drive shaft of an electric drive device with a brake installed outside the opening/closing part is rotated, and the vinyl house opening/closing pipe connected to this drive shaft by a universal joint is rotated, and the vinyl house opening/closing pipe is wrapped around the opening/closing pipe for ventilation of the vinyl greenhouse. A series of systems that open and close the opening and closing parts monitor the temperature, humidity, rainfall, etc. inside the greenhouse at a location other than the cultivation site such as the grower's home, and constantly automatically control the temperature to maintain the appropriate temperature required by the crops in the greenhouse. An automatic temperature/humidity control device for a greenhouse, which is characterized by automatically maintaining temperature, humidity, and prevention of rainwater intrusion, and monitoring the control status from a remote location. 2. Automatic control adjustment of temperature, humidity, and prevention of rainwater intrusion by a control computer can be changed manually for each greenhouse by operating a key switch on the computer according to the grower's needs, and can be adjusted manually for each greenhouse with a brake. The automatic temperature/humidity control device in a greenhouse as claimed in claim 1, which enables automatic operation or manual operation of other components while the drive device is stopped. 3. The control computer also controls the boiler equipment for keeping warm inside the greenhouse, and if the underground temperature exceeds the low temperature limit, the boiler equipment can be started automatically in claim 1. Automatic temperature and humidity control device in the greenhouse described. 4. Detector detects temperature, humidity, etc. as well as wind direction and speed.
If the wind speed exceeds a preset wind speed, the control computer prohibits the opening and closing of the opening/closing part of the greenhouse on the wind direction side, thereby preventing damage to the cultivated plants in the greenhouse and damage to the greenhouse due to strong winds. automatic humidity control device installed in greenhouses. 5. Arbitrarily set parameters related to the opening and closing of the greenhouse, such as the operation-set inside temperature of the greenhouse, the outside air temperature range per step, the wind speed width and number of steps, the opening/closing width per step of the opening/closing part, and abnormal values, in the control computer; The automatic humidity control device in a greenhouse according to claim 1, which performs automatic control and also detects an abnormal value and issues an alarm to the outside. 6. Add an uninterruptible power supply to the control computer,
The automatic humidity control device in a greenhouse as claimed in claim 1, which increases the reliability of the system by allowing the control computer to continue operating during a power outage and issuing a warning to the user.