JP2521838B2 - House temperature control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The temperature control device according to the present invention relates to a greenhouse gardening facility. In recent years, house horticulture has become popular as a source of cash income for farmers, and forcing and restraining cultivation is performed on various agricultural products, and is widely practiced not only in warm regions but also in cold regions. It is also used not only in horticulture, but also in the cultivation of citrus fruits such as mandarin oranges, yuzu, and sudachi, and eel, and is used in many fields of institutional horticulture.

(Prior Art) The structure of a facility horticultural house is that a frame is doubled or tripled with a vinyl film to improve heat retention and to be heated by transmitted light during the daytime.

Each crop has an optimal cultivation temperature range depending on its type.In order to obtain an appropriate temperature, it is heated when the temperature is low, and when the temperature rises due to sunlight, the temperature inside the horticultural house is increased by opening and closing the window. Are controlling.

These temperature adjustment operations were performed manually based on experience and intuition, but in recent years, automatic control methods have been adopted. This method measures the temperature in the gardening house, and when there is a difference from the set temperature, the timer of the opening / closing drive motor works for a certain period of time, a certain angle window opens, and after a few minutes after opening, the inside of the gardening house again The temperature is measured, and if there is a temperature difference, the window will open at a certain angle.
The temperature in the horticultural house is controlled by repeating the standby for 3 minutes and the temperature measurement.

(Problems to be Solved by the Invention) By the way, in the conventional method of measuring the temperature at regular intervals and controlling the window, when a rapid temperature change occurs, the opening / closing operation of the window can be sufficiently followed due to the interval. However, sometimes the windows did not close enough, but the boiler started burning and fuel wasted in vain. Further, if the temperature control range is made small, the window will always be opened and closed, and it will move like a fan, resulting in a significant reduction in the life of the opening and closing operation device.

Furthermore, the orientation direction of the gardening house, which consists of multiple buildings, differs from north to south, east, west, and the direction of sunshine. Therefore, the temperature distribution is different even within the same garden house. The conventional method of simultaneously driving and controlling a plurality of window opening / closing devices with one control device has a problem that the different temperature distributions are further disordered. To solve this, a plurality of control devices are required. There was a problem that it cost a lot of money.

In addition, depending on the crop, it is often effective in terms of growth to slightly change the temperatures for several hours immediately after sunrise and several hours before sunset, compared with the control temperature during the day. However, the sunrise and sunset times change every day, and in addition, the temperature setting must be changed every morning and evening, which is difficult to actually do.

Therefore, an object of the present invention is to solve these problems, to control the temperature in the horticultural house to a temperature suitable for the growth of crops and to save labor in the management work.

[Configuration of the Invention] (Means for Solving the Problems) The present invention has the following configurations in order to achieve the above object.

In a temperature control device for a house, which senses the temperature inside the house and controls the opening and closing of windows when the temperature inside the house exceeds the upper limit or the lower limit of the control temperature set in an appropriate range, the temperature inside the house is the upper limit or the lower limit of the control temperature. When the opening / closing control of the window is performed when the temperature exceeds the control temperature, the control temperature is changed to a control temperature in a new range in which the upper limit or the lower limit of the control temperature is increased by a temperature set in an arbitrary range when the opening / closing control of the window is performed. A temperature control device for a house, comprising a program device for shifting.

The programming device is pre-programmed so that the maximum number of control points that can be added is independently temperature controlled, and the number of control points can be controlled independently by additionally adding a temperature sensor and sub board. The temperature control device for a house according to claim 1, wherein the temperature control device is configured as follows.

The programming device is pre-programmed with yearly sunshine hours to control the temperature for any number of hours after sunrise and any number of hours before sunset, different from the set temperature during the day. The temperature control device for a house according to claim 1 or 2, wherein the temperature control device is configured so as to be capable of being heated.

(Operation) With the configuration of the present invention, it is possible to finely control and manage the temperature with high precision, so that not only it is possible to create an optimal environment for growing a crop, but also the growth temperature is different in the same gardening house. In addition to making it possible to grow crops, it will also be possible to extend the life of switchgear operation equipment by eliminating the fan phenomenon, save labor in management work, and reduce equipment costs.

(Example) Next, the present invention will be described based on an example shown in the drawings.

The temperature control device (programming device) is shown in FIG.
The front panel is composed of a display unit 1 and a setting input unit 2, and is configured so that expansion sub-boards NOI-NOn can be inserted therein. From the setting input section 2, the temperature after sunrise, daytime temperature,
The set temperature of pre-sunset temperature and control temperature, the operating time of the window opening / closing device can be controlled independently for each building, and the control time after sunrise, the control time before sunset, and the regional time difference can be operated by keyboard. It is possible to input. In addition, the display unit 1 displays the building, set temperature, and set time by operating the keyboard, or
Real temperature monitoring display is possible. In addition, the temperature control device has a control temperature step-up method in which the temperature obtained by adding the control temperature to the previous control temperature becomes a new control temperature when the control temperature is exceeded, and each The method of controlling each building independently, or the sunrise and sunset times for one year based on Akashi standard time are programmed in advance.

Next, an example of control by the temperature control device will be described based on a time chart.

FIG. 2 shows a time chart diagram by the conventional control apparatus, and FIG. 3 shows a control temperature step-up type time chart by the embodiment of the present invention. Both of the initial control temperature range settings are ± 1 ° C. In the conventional control device, the temperature measurement is an intermittent measurement every few minutes, so even if the temperature exceeds the control temperature range, it does not operate until the temperature measurement time is reached, so an operation delay occurs with respect to a temperature change.
On the other hand, in the case of the control temperature step-up type according to the embodiment of the present invention, since the temperature is constantly measured and the control temperature is stepped up, the window (opening corresponding to the control temperature is immediately opened when the control temperature range is exceeded. The opening / closing operation of (degrees or number of windows) starts, the number of window opening / closing operations is as small as 4 times compared to the conventional 7 times, the response time is nearly half, and the followability to temperature change is good.

In particular, in the case of a rapid temperature change, the conventional type cannot follow and a large time delay occurs. In some cases, the combustion of the boiler begins and the fuel is burned in vain even though the windows are not fully closed.

In order to eliminate the conventional time delay, it is necessary to shorten the intermittent time of temperature measurement, but with this method, the time followability is improved, but excessive control is likely to occur and it always opens and closes like a fan. It will be. Also, the same result is obtained when the control temperature range is reduced. In the control temperature step-up type, for example, when the set temperature is 25 ° C. and the control temperature is ± 1 ° C., when the temperature rises, the opening operation is performed at 26 ° C., and the control temperature + 1 ° C. is further added with the control temperature + 1 ° C.
2 ° C is the new control temperature. If the temperature drops, 24
The new control temperature is −2 ° C., which is obtained by adding the control temperature −1 ° C. to the control temperature −1 ° C. while the closing operation is performed at the temperature. By moving the control temperature in this way, it becomes possible to perform control without excessive control. In this example, the control temperature was described as ± 1 ° C. for comparison, but in actual control, the control temperature was ± 0.2 ° C., so that the control could be performed significantly. Here, the difference between the conventional one and the embodiment of the present invention will be further described with reference to FIGS. 2 and 3.

In the conventional case, as shown in FIG. 2 (a), when the temperature rises on the + side of the set temperature, FIG. 2 (b)
As shown in FIG. 2, since the control temperature is within +1 during the first temperature measurement, the window is not opened as shown in FIG. 2 (c). Next, at the second temperature measurement, since it exceeds +1, the window is opened. And 3rd, 4th, 5th temperature rise (measurement)
Time, and also during the sixth, seventh, and eighth temperature drops,
Since the temperature at that time exceeds the control temperature + 1, each time the window is opened and lowered, a total of seven times are performed. And the 9th time when the set temperature is reached does not open and close, and it exceeds -1 during the 10th temperature measurement on one side of the set temperature, so in the future it will be closed. It will be repeated. Thus, in the conventional case, the followability is such that the opening (closing) of the window is performed by extending from the temperature rising range (falling range) to the falling range (raising range).
In terms of responsiveness, there is a problem that the time is long.

On the other hand, in the embodiment of the present invention, assuming that the initial control temperature (initial control temperature) is ± 1 as in the conventional case, as shown in FIG. , +1 is exceeded (the intersection with the diagonal rising line), the window is opened (first time) as shown in FIG. 3 (c), and the control temperature is the initial value at the previous control temperature at this point. Since it becomes +2, the window is opened (second time) when it exceeds +2 next time, and the control temperature becomes +3 at that time, and similarly, the window is opened the third time (third time). And the control temperature is +4 at that time.
And, when +4 is exceeded, there is a window opening (4th),
At that time, the control temperature becomes +5. However, even if the maximum value is reached thereafter, the window does not exceed +5, so that the window does not open. Further, even if the temperature decreases, the window does not exceed +5 and the window does not open. Thus, when the temperature reaches the set temperature, the control temperature is reset to the initial value ± 1 in order to achieve the purpose, and this time, the addition of the control temperature is similarly performed on one side of the set temperature.

As described above, in the embodiment of the present invention, when the temperature inside the house repeatedly rises or falls, in the first half of the rise or fall, the control is performed so that the window is opened or closed many times as quickly as possible. The followability or responsiveness is far superior to the conventional one.

Next, the case where the temperature after sunrise and the temperature before sunset are controlled by changing from the set temperature during the day will be described based on the time chart under the program control in FIG. The yearly sunrise,
Since the sunset time is programmed, the temperature setting of the control device is set to the set temperature after sunrise with sunrise. When the temperature in the horticultural house gradually rises due to sunshine and exceeds the set temperature after sunrise, the control device operates and the windows are opened and closed, and control at the set temperature after sunrise starts. This control is gradually changed from the preset temperature after sunrise to the preset temperature during the day by the preset control time after sunrise. After the set time after sunrise, control at the set temperature during the day starts. Similarly, before the sunset, the temperature is controlled at the preset temperature for the preset time. Such control is effective for the growth of crops. The temperature control device according to the embodiment of the present invention enables such control management throughout the year by setting the temperature before sunrise and before sunset and by setting the time. Moreover, since the sunrise / sunset time of the year is programmed in Akashi standard time, it can be used in any area by inputting and setting the time difference depending on the area.

Furthermore, since this temperature control device can be additionally installed with a temperature sensor and sub-board, each building can be controlled independently,
If the crops in the horticultural house are the same, the temperature distribution in the horticultural house can be made more uniform, and if the crops are of different types, the optimum temperature of the crop can be controlled and managed for each building.
That is, as shown in the measurement flow chart of FIG. 5, the present temperature control device, as one embodiment, has a total of 5 boards including one basic board and four additional sub-boards, or one board having four points. It is possible to control, and it is programmed to check the presence / absence of a board and the presence / absence of an input at the same time for a maximum of 20 control points. All you need to do is add an additional board, and you do not need to change the program to add it. In this embodiment, a maximum of 20 points can be independently controlled by one temperature control device. For example, in a case of a 4-house, if the length of the building is short, the independent control of 4 buildings is a basic board without an expansion board. It can be controlled by one sheet, and when four buildings are long and one building is divided into three windows, twelve temperature sensors for twelve windows, one basic board and one sub board 2 It becomes possible to control by adding additional sheets. In this way, according to the specifications of each house, there is an advantage that the installation cost is small and the installation space is small because the system is additionally installed in one control device.

Also, since each building or each window can be controlled independently, if the crops in the gardening house are the same, the temperature distribution in the gardening house will be made more uniform, and if the crops are of different types, It is also possible to control and manage the optimum temperature of the crop in each building.

[Effects of the Invention] As is clear from the above description, the temperature control device according to the present invention enables fine and highly accurate temperature control management, and can create an optimal environment for growing crops and other management work. It also saves labor.

In addition, when controlling an arbitrary building independently, the equipment cost is small and the space is small.

In addition, if the annual sunshine hours are pre-programmed, it is extremely effective for growing crops.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is an external view of a temperature control device, FIG. 2 is a conventional time chart, FIG. 3 is a control temperature step-up time chart according to the present invention, and FIG. Is a time chart under program control according to the present invention, and FIG. 5 is a flow chart.

Claims (3)

(57) [Claims] Claim: What is claimed is: 1. A temperature control device for a house, wherein the temperature inside the house is controlled to open and close a window when the temperature inside the house exceeds an upper limit or a lower limit of a control temperature set in an appropriate range. When the opening / closing control of the window is performed when the upper limit or the lower limit of is exceeded, the control temperature is increased by the temperature set in the arbitrary range when the upper limit or the lower limit of the control temperature is increased. A temperature control device for a house, comprising a program device for shifting to a control temperature within a range. 2. The programming device is pre-programmed so that the maximum number of control points that can be added is independently temperature controlled, and the number of control points is independent by additionally adding a temperature sensor and a sub board. The temperature control device for a house according to claim 1, wherein the temperature control device is configured so as to be controllable. 3. The program device is pre-programmed with an annual sunshine time, and the temperature of an arbitrary number of hours after sunrise and an arbitrary number of hours before sunset is set to a preset temperature during the day. The temperature control device for a house according to claim 1 or 2, wherein the temperature control device is configured so as to be controlled differently from the above.