JP2004057347A - Controller of cooling system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a controller which effectively reduces the power consumption of a cooling system. <P>SOLUTION: A controller 10 constituting the cooling system is provided with low temperature showcases 1a and 1b, and freezers 11 and 12 for feeding coolants to these showcases 1a and 1b. This cooling system prepares control data for controlling the operation of the freezers 11 and 12 on the basis of determination result data about the quality of a cooling state in the storage chambers of the showcases 1a and 1b and environmental condition data about an operation environment condition. The control data consist of the pressure set value of the low pressure side of the freezers 11 and 12. The temperature inside and outside a store and time are used as the operation environment condition. Further, the deviation temperature of the storage chambers are used for the determination of the quality of the cooling state. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a control device for a cooling system including, for example, a low-temperature showcase installed in a supermarket or the like and a refrigerator for supplying a refrigerant to the low-temperature showcase.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a plurality of low-temperature showcases such as a frozen and refrigerated showcase are installed in a store such as a supermarket, and are used for displaying and selling food while freezing or refrigeration. In this case, the refrigerant is circulated and supplied to the evaporator of each low-temperature showcase from a refrigerator installed outside the store (such as a machine room). In this case, products of different manufacturers are used for the low-temperature showcase and the refrigerator depending on the store, and the refrigerant circuit of the cooling system may be configured.
[0003]
On the other hand, in recent years, in stores such as supermarkets as well, measures to reduce power consumption in the cooling system have been emphasized from the viewpoint of addressing environmental issues and reducing energy costs. In order to reduce the power consumption, it is important to improve the operating efficiency of the low-temperature showcase and the refrigerator itself.However, the entire cooling system including the low-temperature showcase and the refrigerator must be coordinated with each device. It is also possible to reduce power consumption.
[0004]
Thus, for example, Japanese Patent Application Laid-Open No. 9-217974 proposes a method of reducing power consumption by setting a low pressure side pressure set value of a refrigerant circuit and an inverter frequency based thereon based on an inverter type refrigerator. . The low pressure side pressure set value is a value for stopping and operating the compressor of the refrigerator, and is generally set to a value suitable for a situation where cooling capacity is most required in summer. Therefore, in a situation where high cooling capacity is not required, such as in winter, it is possible to reduce the cooling capacity and reduce power consumption.
[0005]
In order to realize this, it is necessary to determine that the current cooling capacity has a margin so that the cooling of the displayed food product does not occur even if the cooling capacity is reduced. Therefore, in the above publication, the marginal cooling capacity of the entire cooling system is evaluated using the operating rate of the low-temperature showcase as a basic evaluation index.
[0006]
[Problems to be solved by the invention]
However, the cooling capacity of the low-temperature showcase is greatly affected by the operating environment of the low-temperature showcase. That is, the cooling capacity of the entire cooling system depends on the performance of the low-temperature showcase and the refrigerator and is fixed, but the cooling state in the refrigerator of the low-temperature showcase depends on the temperature around the low-temperature showcase and the refrigerator. Affected and constantly fluctuates. Therefore, in order to determine the surplus cooling capacity of the entire cooling system, it is necessary to determine the cooling state in the refrigerator in consideration of the influence of the operating environment.
[0007]
In this case, the operation rate in the above publication can also be an index for determining how much the cooling capacity has a margin when maintaining the internal temperature of the low-temperature showcase at a set value, but it is not necessarily a direct I can't say that. Further, when only the driving rate is used as the judgment index, the driving rate is affected by the driving environment as described above. Therefore, it is necessary to perform quick and fine control to achieve an effective reduction in power consumption. I have to say that it is not enough.
[0008]
The present invention has been made to solve such a conventional technical problem, and provides a control device capable of more effectively reducing power consumption in a cooling system.
[0009]
[Means for Solving the Problems]
In a cooling system including a low-temperature showcase and a refrigerator for supplying a refrigerant to the low-temperature showcase, the control device according to the present invention includes: It is characterized in that control data for controlling the operation of the refrigerator is generated based on environmental condition data relating to conditions.
[0010]
In addition to the above, the control device of the cooling system according to the second aspect of the present invention reduces power consumption in the refrigerator while securing cooling in the refrigerator of the low-temperature showcase based on the determination result data and the environmental condition data. It is characterized by generating control data.
[0011]
The control device of the cooling system according to the third aspect of the present invention may further include, as control data, a low-pressure side pressure set value for controlling the operation of the refrigerator based on the determination result data and the environmental condition data as control data. Is output.
[0012]
The control device for the cooling system according to the fourth aspect of the present invention, in addition to the above-described inventions, generates the determination result data based on the deviation temperature from the target temperature in the refrigerator of the low-temperature showcase, and includes at least the temperature in the store as the environmental condition data. , Outside temperature and time.
[0013]
The control device for a cooling system according to claim 5, in addition to the above, has a registration location for each environmental condition obtained by a combination of an in-store temperature, an out-of-store temperature and a time, and control data and determination result data are stored in each registration location. Is registered to construct a database.
[0014]
In addition to the above, the control device of the cooling system according to the sixth aspect of the present invention assumes that the current in-store temperature and the out-of-store temperature will continue thereafter, and stores the control data of the registered location of the database corresponding to the environmental condition. , Rewritten and output according to the determination result data.
[0015]
In the present invention, since the operation of the refrigerator is controlled in consideration of the operating environment conditions in addition to the quality of the cooling state in the refrigerator in the low-temperature showcase, more rapid and detailed operation is performed to reduce the power consumption of the refrigerator. Control becomes possible. As a result, it is possible to effectively reduce the power consumption of the entire cooling system while securing the minimum cooling capacity necessary for maintaining the cooling inside the refrigerator of the low-temperature showcase.
[0016]
In particular, since the low pressure side pressure set value is output as control data in order to reduce the power consumption of the refrigerator, it is possible to cope with refrigerators other than the inverter type. Further, by using not the operation rate but the deviation temperature in the interior of the low-temperature showcase as the judgment index of the cooling state as the judgment result data, it is possible to make a more direct judgment. Furthermore, by using the temperature inside the store, the temperature outside the store, and the time as the driving environment conditions, in addition to the season, the operation status such as opening and closing of the store, turning on and off the lights, replenishing products and installing night covers, and customer visits. It is possible to respond appropriately to the situation.
[0017]
In addition, control data and judgment result data are registered for each environmental condition to construct a database, and it is assumed that the current environmental condition will continue thereafter, and the control data of the environmental condition will be rewritten according to the judgment result data. , Output, it is possible to predict the transition of the driving environment and perform fine control that quickly follows the prediction.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a longitudinal side view of a low-temperature showcase 1 as an embodiment to which the present invention is applied, FIG. 2 is a diagram illustrating a piping configuration of a cooling system RS of a supermarket in which the low-temperature showcase 1 is installed, and FIG. FIG. 4 is a control block diagram of a cooling system RS of FIG.
[0019]
The low-temperature showcase 1 of the embodiment is a vertical open showcase, and includes a heat insulating wall 32 having a substantially U-shaped cross section, and side plates (not shown) attached to both sides of the heat insulating wall 32 at an installation site. I have. An outer partition plate 34 and an inner partition plate 36 are attached to the inner side of the heat insulating wall 32 at intervals, and a space between the heat insulating wall 32 and the outer layer partition plate 34 is formed between the outer duct 37 and the inner and outer layer partition plates 36, 34. Is an inner layer duct 38, and the inside of the inner layer partition plate 36 is a storage chamber 39 (inside the storage).
[0020]
A plurality of shelves 41 are provided in the storage room 39, and fluorescent lamps 40 are provided in the front of the lower surface of each shelf 41, the ceiling of the storage room 39, and the eaves 37. Installed. A deck pan 42 is attached to the bottom of the storage chamber 39, and below the deck pan 42 is a bottom duct 43 communicating with the ducts 37 and 38. A fan case 44 having a blower 45 built therein is installed in the bottom duct 43. An evaporator 46 is provided vertically below the inner layer duct 38 located behind the storage room 39.
[0021]
An outer-layer outlet 52 and an inner-layer outlet 53 are arranged in front and rear at the upper edge of the front opening 51 of the storage chamber 39. The outer-layer outlet 52 is connected to the outer-layer duct 37 and the inner-layer outlet 53 is connected to the inner-layer duct 38. Communicating. A suction port 54 is formed at a lower edge of the opening 51 and communicates with the bottom duct 43.
[0022]
When the blower 45 in the fan case 44 is operated, the air in the bottom duct 43 is blown toward the inner and outer layer ducts 37 and 38 at the rear, and is blown up as it is in the outer layer duct 37, and the inner layer duct 38. Is blown up after exchanging heat with the evaporator 46, and is blown out from the inner and outer layer discharge ports 52, 53 at the upper edge of the opening 51 toward the suction port 54 at the lower edge.
[0023]
As a result, an inner cool air curtain and an outer air curtain protecting the inner cool air curtain are formed in the opening 51 of the storage chamber 39, and the intrusion of outside air from the opening 51 is prevented or suppressed. A part of the air curtain circulates in the storage room 39 and the inside of the storage room 39 is cooled. When the store is closed, the opening 51 is closed by a night cover (not shown).
[0024]
Then, the cool air or the like returns to the bottom duct 43 from the suction port 54 and is sucked into the blower 45 again. A defrost heater 67 is attached to the evaporator 46 to generate heat and melt frost on the evaporator 46.
[0025]
Next, in FIG. 2, what is indicated by 1a... Is a low-temperature showcase (refrigerated case for fruits and vegetables) for storing and displaying fruits and vegetables (products), and three units are arranged side by side. .. Are low-temperature showcases (ice temperature cases for fresh fish) for storing and displaying fresh fish (products).
[0026]
Each of the low-temperature showcases 1a,..., 1b... Is installed as shown in FIG. On the other hand, reference numerals 11 and 12 are separate-type refrigeration refrigerators and ice-temperature refrigerators installed (separately installed) in a machine room 13 constructed outside the store. These low-temperature showcases 1a. , And the refrigerators 11 and 12 constitute a cooling system RS of the present invention.
[0027]
Each of the refrigerators 11 and 12 is composed of a compressor and a condenser (not shown). The inlet side of the evaporator 46 of the low-temperature showcase 1a (refrigeration case) is provided with the electromagnetic valve 14 and the expansion valve 16 respectively. The refrigerant is connected in parallel to the liquid refrigerant pipe 17 of the refrigerator 11 through the outlet, and the outlet side of the evaporator 46 is connected in parallel to the gas refrigerant pipe 18 of the refrigerator 11.
[0028]
Further, the inlet side of the evaporator 46... Of the low-temperature showcase 1 b (ice temperature case) is connected in parallel to the liquid refrigerant pipe 22 of the ice temperature refrigerator 12 via the solenoid valve 19 and the expansion valve 21. At the same time, the outlet side of the evaporator 46 is connected in parallel to the gas refrigerant pipe 23 of the ice temperature refrigerator 12.
[0029]
The control device of each of the low-temperature showcases 1a and 1b controls the opening and closing of the solenoid valves 14 and 19 based on the temperature of the cold air blown into or in the storage room 39, and supplies the refrigerant to the evaporator 46 to store the refrigerant in the storage room 39. To cool. That is, an upper limit temperature and a lower limit temperature are set above and below a target value (set temperature) of the temperature of the storage room 39, and the solenoid valves 14, 19 are opened at the upper limit temperature and closed ON-OFF control is performed at the lower limit temperature. . As a result, the temperature of the storage room 39 (inside the refrigerator) approaches the target value on average, but a deviation temperature occurs between the target value and the actual temperature of the storage room 39 depending on the cooling capacity and the surrounding environment.
[0030]
On the other hand, the compressors of the refrigerators 11 and 12 are operated when any one of the solenoid valves 14 and 19 is open. However, in all the low-temperature showcases 1a or 1b, the solenoid valves 14 and 19 are operated. Alternatively, if 19 is closed, it is stopped. In this case, specifically, using the low pressure side pressure set value of the refrigerant circuit, the control device of each of the refrigerators 11 and 12 reduces the pressure on the low pressure side of the refrigerant circuit by closing all the solenoid valves 14 or 19. When the pressure decreases to the low pressure side set value, the compressor is stopped. Then, when the solenoid valve 14 or 19 of any of the low-temperature showcases 1a or 1b is opened and the low-pressure side pressure becomes higher than the low-pressure side pressure set value (in this case, a predetermined hysteresis is provided), the compression is performed again. Will start the machine.
[0031]
Next, the operation of the control device (hereinafter, referred to as a controller) 10 for reducing the power consumption of the cooling system RS according to the present invention will be described with reference to FIG. The controller 10 is constituted by a general-purpose microcomputer having a memory in which a database 15 described later is constructed and a clock function (indicated by 20), between each low-temperature showcase 1a... And the refrigerator 11, and Data is transferred between the low-temperature showcases 1b... And the refrigerator 12.
[0032]
In this case, the above-described deviation temperature of the storage room 39 (inside the storage) and the in-store temperature are input to the controllers 10 and 10 from the low-temperature showcases 1a. In addition, outside temperatures are input from the refrigerators 11 and 12, respectively. Then, the low pressure side pressure set values are output as control data from the controllers 10 and 10 to the refrigerators 11 and 12, respectively.
[0033]
Next, a specific operation of the controller 10 will be described. Note that the controller 10 interposed between the low-temperature showcase 1a and the refrigerator 11 will be described below, but the same applies to the controller 10 between the low-temperature showcase 1b and the refrigerator 12. And
[0034]
First, the database 15 described above is constructed in the memory of the controller 10. In the database 15, the data registration locations are classified based on the three conditions of the in-store temperature, the out-of-store temperature, and the time zone, which serve as indices for determining the operating environment conditions, and are registered as discrete data classified into a plurality of stages. You. The discretization rule in this case is that the in-store temperature Ti (° C.): the range of 0 ° C. to + 35 ° C. is classified into eight levels in increments of 5 deg (actually, the average value per hour is adopted).
Out-of-store temperature To (° C.): The range of −5 ° C. to + 40 ° C. is classified into 10 steps in increments of 5 deg (actually, the average value per hour is adopted).
Time zone t: Classified into 24 stages in units of one hour.
Thus, a total of 1920 registered locations are configured.
[0035]
The in-store temperature and the out-of-store temperature are operating environment conditions affected by the natural environment. In addition, the cooling state of the low-temperature showcase 1a is affected not only by the natural environment but also by the frequency of taking in and out of foods by clerks and customers, turning off lights for energy saving purposes when the store is closed, and blocking by night covers. It is possible to judge by the band. In addition, regarding the calculation of the average value of the deviation temperatures described later, the time point including the calculation start time is set as the time zone. For example, when calculating the average deviation temperature from the deviation temperature for 60 minutes from 3:40 to 4:40 pm, the time zone is treated as 3:00 pm. When the temperature inside the store is lower than 0 ° C., the temperature is treated as 0 ° C., when the temperature inside the store is higher than + 35 ° C., the temperature is treated as + 35 ° C., when the temperature outside the store is lower than −5 ° C., -5 ° C. , + 40 ° C., it is treated as + 40 ° C.
[0036]
Then, the controller 10 sets the low pressure side pressure set value Ps (PaG) of the refrigerator 11 as the control data and the data of the judgment result of the cooling state of the storage chamber 39 of the low temperature showcase 1a (judgment result data) in each registered location of the database 15 ) Is registered as shown in FIG.
[0037]
The determination result data is obtained by calculating the average deviation temperature Te (deg) per fixed time (actually, one hour) from the deviation temperature sent from each of the low-temperature showcases 1a. It is determined whether or not this average deviation temperature Te is equal to or higher than a predetermined threshold value A. If the average deviation temperature Te of all the low-temperature showcases 1a... Connected to the controller 10 is not equal to or higher than the threshold value A, the determination result data is determined to be “good” and at least one of the threshold values A When there is the low-temperature showcase 1a described above, the determination result data is registered as “No” in the registered locations of the in-store temperature, the out-of-store temperature, and the time zone.
[0038]
The threshold value A is a value for determining whether the average deviation temperature Te is good or not, and is set to a value that can maintain a sufficiently good cooling state in the storage room 39 of the low-temperature showcase 1a.
[0039]
Next, an embodiment of actual control with the above configuration will be described. The controller 10 adjusts the low pressure side pressure set value of the refrigerator 11 based on the database 15 described above. The adjustment of the low-pressure side pressure set value of the refrigerator 11 is performed at a predetermined cycle. Hereinafter, an example in which the adjustment is performed at an hour cycle will be described.
[0040]
First, a default value is registered in advance in all registered locations of the database 15 as an initial value of the low-pressure side pressure set value Ps which is control data. Therefore, when the low-temperature showcase 1a... And the refrigerator 11 are initially installed in the supermarket, the low-pressure side pressure set value Ps is set to a default value. Note that this default value is a value in an environment where the cooling capacity is most required in summer, and the adjustment of the low-pressure side pressure set value Ps performed for the purpose of reducing power consumption thereafter is smaller than the default value. The adjustment is made in the direction of increasing, and such adjustment does not lower the default value.
[0041]
On the other hand, the judgment result data relating to the judgment result of the cooling state of the storage room 39 of the low-temperature showcase 1a..., That is, the data of the above-described judgment of the average deviation temperature Te is not registered as the initial value. That is, after the low-temperature showcases 1a... And the refrigerator 11 are started to operate, the operation is performed yearly through the change of seasons, so that the judgment result data obtained from the actual measurement is gradually registered.
[0042]
Here, of the above-described operating environment conditions, the in-store temperature Ti and the out-of-store temperature To can be said to be indices that do not significantly change in about one hour. Therefore, in the actual control of the controller 10, it is assumed that the in-store temperature Ti and the out-of-store temperature To in the past hour continue for the next hour, and the in-store temperature Ti and the out-of-store temperature To Check the registration status of the data at the registration location corresponding to the time later.
[0043]
If the judgment result (judgment result data) of the cooling state is not registered in the registered location (hereinafter, referred to as D1), the low pressure side pressure setting for the operation in the time zone (time zone after one hour) is performed. The value Ps is set as a default value, registered as control data in the registration location D1, and the control data is output to the refrigerator 11. In the refrigerator 11, the start / stop of the compressor is controlled as described above based on the low pressure side pressure set value Ps transmitted from the controller 10.
[0044]
The determination result data obtained by the actual operation in the time zone (time zone one hour later) corresponds to the actual in-store temperature Ti and the outside-store temperature To (and the time zone) in the time zone. It will be registered in the registration location of the database 15.
[0045]
On the other hand, when the judgment result (judgment result data) of the cooling state is registered in the registration location D1, the control is different depending on whether the judgment result is good or not. That is, when the determination result of “No” is registered in the registered location D1, the controller 10 sets the low pressure side pressure set value Ps as the value registered in the registered location D1, or the registered low pressure side Ps. When the pressure set value Ps is higher than the default value, the pressure is rewritten to a value reduced by a certain value (PaG), and the rewritten value is output to the refrigerator 11 as control data. In the refrigerator 11, the stop and start of the compressor are controlled as described above based on the low pressure side pressure set value Ps transmitted from the controller 10, and at this time, the low pressure side pressure set value Ps is set to a low value. In addition, the low-pressure side pressure set value Ps at which the compressor is started and stopped is reduced, and the cooling capacity is improved accordingly.
[0046]
That is, at the same in-store temperature Ti and the out-of-store temperature To, the cooling state of the result of the previous operation in the operating environment is not good in the registered location of the database 15 corresponding to the time zone of the next hour, and the determination result is “ If "No" is registered, the cooling capacity of the refrigerator 11 is maintained or improved to improve the cooling state of the storage room 39 of the low-temperature showcase 1a.
[0047]
Conversely, when the determination result of “good” is registered in the registered location D1, the controller 10 determines that there is enough cooling capacity, and sets the low-pressure side pressure set value Ps from the value registered in the registered location D1. Is also rewritten to a value increased by a certain value (PaG), and the rewritten value is output to the refrigerator 11 as control data. In the refrigerator 11, the stop and start of the compressor are controlled as described above based on the low-pressure side pressure set value Ps transmitted from the controller 10. At this time, the low-pressure side pressure set value Ps is set to a high value. As a result, the low pressure side pressure set value Ps at which the compressor is started / stopped increases, and accordingly, the cooling capacity is reduced and the power consumption is reduced.
[0048]
That is, at the same store temperature Ti and outside store temperature To, the registered state of the database 15 corresponding to the time zone of the next hour has a good cooling state as a result of the previous operation in the operating environment, and the determination result is “good”. Is determined as having sufficient cooling capacity of the refrigerator 11, the cooling capacity is reduced, and the cooling state of the storage room 39 of the low-temperature showcase 1a is maintained. The power consumption of the refrigerator 11 is reduced.
[0049]
When it is determined that the cooling capacity of the cooling system RS has a margin by such control, the cooling capacity of the refrigerator 11 is reduced to reduce the power consumption, and the storage room 39 of the low-temperature showcase 1a. Is maintained near the threshold value A.
[0050]
The operating environment conditions shown in the embodiments are not limited to those. In the embodiment, the low-pressure side pressure set value of the refrigerator is adjusted as the control data. However, the present invention is not limited to this, and any control factor related to the cooling capacity and power consumption of the cooling system can be used. Further, in the embodiment, the low-pressure side pressure set value is adjusted in a one-hour cycle. However, the present invention is not limited to this, and it is possible to appropriately select a setting such as 1 minute, 10 minutes, 30 minutes, 1 hour 30 minutes, and 2 hour cycle. is there.
[0051]
【The invention's effect】
As described above in detail, according to the present invention, since the operation of the refrigerator is controlled in consideration of the operating environment conditions in addition to the quality of the cooling state inside the refrigerator of the low-temperature showcase, the power consumption of the refrigerator is reduced. Furthermore, quicker and more detailed control is possible. As a result, it is possible to effectively reduce the power consumption of the entire cooling system while securing the minimum cooling capacity necessary for maintaining the cooling inside the refrigerator of the low-temperature showcase.
[0052]
In particular, since the low pressure side pressure set value is output as control data in order to reduce the power consumption of the refrigerator, it is possible to cope with refrigerators other than the inverter type. Further, by using not the operation rate but the deviation temperature in the interior of the low-temperature showcase as the judgment index of the cooling state as the judgment result data, it is possible to make a more direct judgment. Furthermore, by using the temperature inside the store, the temperature outside the store, and the time as the driving environment conditions, in addition to the season, the opening and closing of the store, turning on and off the lights, replenishment of products, installation of night covers, and the like, and customer visits. It is possible to respond appropriately to the situation.
[0053]
In addition, control data and judgment result data are registered for each environmental condition to construct a database, and it is assumed that the current environmental condition will continue thereafter, and the control data of the environmental condition will be rewritten according to the judgment result data. , Output, it is possible to predict the transition of the driving environment and perform fine control that quickly follows the prediction.
[Brief description of the drawings]
FIG. 1 is a vertical side view of an embodiment of a low-temperature showcase constituting a cooling system to which the present invention is applied.
FIG. 2 is a diagram illustrating a piping configuration of a supermarket in which the low-temperature showcase of FIG. 1 is installed.
FIG. 3 is a control block diagram of the cooling system of the present invention.
FIG. 4 is a diagram illustrating a database of a controller of the cooling system of the present invention.
[Explanation of symbols]
1a, 1b Low-temperature showcase 10 Controller (control device)
11, 12 Refrigerator 14, 19 Solenoid valve 15 Database

Claims (6)

In a cooling system including a low-temperature showcase and a refrigerator that supplies a refrigerant to the low-temperature showcase,
A cooling system that generates control data for controlling the operation of the refrigerator based on determination result data regarding the quality of a cooling state in the refrigerator of the low-temperature showcase and environmental condition data regarding an operating environment condition. Control device. The control data is generated based on the determination result data and the environmental condition data in a direction to reduce power consumption in the refrigerator while ensuring cooling in the refrigerator of the low-temperature showcase. Cooling system controller. The low-pressure side pressure set value for controlling the operation of the refrigerator based on the determination result data and the environmental condition data is output to the refrigerator as the control data. Control system for cooling system. The method according to claim 1, wherein the determination result data is generated based on a deviation temperature of the low-temperature showcase from a target internal temperature, and the environmental condition data includes at least an in-store temperature, an out-of-store temperature, and a time. The control device for a cooling system according to claim 2 or 3. A database is constructed by having registered locations for each environmental condition obtained by a combination of the in-store temperature, the out-of-store temperature, and the time, and registering the control data and the determination result data in each registered location. Item 4. A control device for a cooling system according to Item 4. Assuming that the in-store temperature and the out-of-store temperature at the present time continue thereafter, rewrite and output the control data of the registered location of the database corresponding to the environmental condition according to the determination result data at the present time. 6. The control device for a cooling system according to claim 5, wherein:

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