JP2013096589A - Store centralized control device and method of measuring degree of influence of air conditioner on showcase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a store centralized control device capable of easily measuring a degree of an influence of an air conditioner on a showcase which corresponds to conventional positional information at a low cost, and utilizing it for energy saving operation.SOLUTION: Operations of a plurality of showcases C1-Cm and indoor units A1-An are controlled in a lump. The store centralized control device includes an in-compartment temperature sensor 7 which measures in-compartment temperatures of the respective showcases C1-Cm, an influence degree measurement part measuring variations in in-compartment temperatures of the respective showcases C1-Cm when one of the indoor units A1-An is placed in operation while in-compartment cooling operations of the showcases C1-Cm are stopped, and an influence degree storage part which stores degrees of influences of the indoor units A1-An on the showcases C1-Cm measured by the influence degree measurement part.

Description

  The present invention measures a centralized management device for collectively managing the operation state of a showcase or an air conditioner installed in a store such as a supermarket or a convenience store, and the degree of influence of the air conditioner on the showcase. It is about the method.

  Traditionally, stores such as supermarkets and convenience stores have been equipped with multiple showcases and air conditioners. Recently, these showcases and air conditioner controllers are connected to an integrated controller via a network. Store centralized management devices that realize efficient operation control by collectively managing the operation state of the case have been developed.

  Here, especially in the case of an open showcase, cooling from the air conditioner (indoor unit) affects the cooling in the cabinet. In addition, air conditioners are more energy efficient than showcases, so if the cooling condition in the showcase cabinet deteriorates, the cooling capacity of the air conditioner will be increased rather than increasing the cooling capacity of the showcase. Can efficiently lower the internal temperature of the showcase (see, for example, Patent Document 1 and Patent Document 2).

JP 2006-23069 A JP 2009-174734 A

  However, since the positional relationship between the showcase and the air conditioner is important for this purpose, it is necessary to initialize the grouping information that is the positional information thereof. In Patent Document 2, the location information of these showcases and air conditioners is set manually by the store user, or a GPS receiver is installed in each device to search for signals, or an RFID tag is installed on the floor. Since it is set by a method such as detecting by arranging a plurality of components, it is complicated and cost increases.

  The present invention has been made to solve the conventional technical problems, and can easily measure the degree of influence of an air conditioner on a showcase corresponding to conventional position information at low cost for energy saving operation. It is intended to provide a method for measuring the degree of influence on a showcase of a store centralized management apparatus and an air conditioner that can be used.

  In order to solve the above-mentioned problem, the store centralized management apparatus of the invention of claim 1 manages the operation of a plurality of showcases and air conditioners installed in a store in a batch, Effect of measuring the temperature change of each showcase when operating any of the air conditioners with the internal temperature measurement section that measures the internal temperature and the cooling operation of the showcase being stopped And an influence degree storage part for storing the influence degree of the air conditioner on the showcase measured by the influence degree measurement part.

  The centralized store management apparatus according to the invention of claim 2 has the cooling capacity of the air conditioner having a large influence on the showcase stored in the influence storage section when the cooling state of the showcase in the store is deteriorated in the invention. It is characterized by increasing.

  According to a third aspect of the present invention, there is provided a centralized store management apparatus that adjusts the number of air conditioners having a large influence to increase cooling capacity in accordance with the cooling state of the showcase in the store.

  A centralized store management apparatus according to a fourth aspect of the invention is characterized in that in the invention of the second or third aspect, the inside cooling capacity of the showcase near the showcase in which the inside cooling state is deteriorated is reduced.

  When the defrosting of the showcase is performed in the invention of the first aspect, the store centralized management device of the invention of claim 5 has the cooling capacity of the air conditioner having a large influence on the showcase stored in the influence storage unit. It is characterized by increasing.

  A centralized store management apparatus according to a sixth aspect of the present invention is characterized in that, in each of the above inventions, the showcase is an open showcase.

  According to the seventh aspect of the present invention, there is provided a method for measuring the degree of influence of an air conditioner on a showcase, wherein a plurality of airs installed in a store are stopped in a state in which the cooling operation of the plurality of showcases installed in the store is stopped. One of the conditioners is operated, and the degree of influence of the air conditioner on the showcase is measured by measuring the change in the internal temperature of each showcase at that time.

  According to the store centralized management apparatus of the first aspect of the invention, the store centralized management apparatus that collectively manages the operation of a plurality of showcases and air conditioners installed in the store has the internal temperature of each showcase. A chamber temperature measuring unit for measuring, and an influence measuring unit for measuring a change in the temperature of each showcase when one of the air conditioners is operated in a state where the cooling operation of the showcase in the chamber is stopped; Since it has an impact storage unit that stores the impact on the showcase of the air conditioner measured by the impact measurement unit, it can be used for an air conditioner showcase installed in a store using existing equipment. It is possible to acquire the influence degree.

  This degree of influence corresponds to the position information in the showcase and air conditioner stores, which eliminates the need for manually setting the position information as in the past, and uses devices such as GPS and RFID tags. Since no position search is required, it is possible to realize an inexpensive and simple energy-saving operation in the store.

  In this case, when the inside cooling state of the showcase deteriorates as in the invention of claim 2, by increasing the cooling capacity of the air conditioner having a large influence on the showcase stored in the influence storage unit, It becomes possible to cool the interior of the showcase with an air conditioner with high energy efficiency, and it is possible to effectively reduce power consumption in the store.

  Furthermore, if the number of air conditioners having a large influence to increase the cooling capacity is adjusted according to the cooling state of the showcase in the store as in the invention of claim 3, the air conditioner can more effectively It is possible to realize internal cooling.

  Further, in this case, if the cooling capacity in the showcase near the showcase in which the cooling state in the store is deteriorated as in the invention of claim 4 is reduced, the overcooling in the store that occurs in the showcase in the vicinity will also occur. It is possible to avoid it.

  Further, when defrosting a showcase as in the invention of claim 5, if the cooling capacity of the air conditioner having a large influence on the showcase stored in the influence storage unit is increased, the defrosting is performed. It is possible to suppress or avoid the deterioration of the product by suppressing the rise in the internal temperature.

  The above is particularly effective in the case of an open showcase as in the invention of claim 6.

  According to the method for measuring the degree of influence of the air conditioner on the showcase according to the invention of claim 7, a plurality of units installed in the store in a state in which the cooling operation in the interior of the plurality of showcases installed in the store is stopped. The air conditioner's influence on the showcase is measured by operating any one of the air conditioners and measuring the change in the temperature of each showcase at that time. It becomes possible to acquire the influence degree with respect to the showcase of the air conditioner installed in the store using.

  Similarly, since this degree of influence corresponds to the position information in the showcase and air conditioner stores, this eliminates the need to manually set the position information as in the past, and the position using devices such as GPS and RFID tags. Since no search is required, it is possible to realize an energy-saving operation in a store that is inexpensive and simple.

It is a block diagram of the store centralized management apparatus of one Example to which this invention is applied. It is a block diagram of the integrated controller of the store centralized management apparatus of FIG. It is a functional block diagram regarding the influence measurement operation | movement of the integrated controller of FIG. FIG. 3 is a functional block diagram relating to an internal cooling assist operation of the integrated controller of FIG. 2. It is a flowchart explaining operation | movement of the integrated controller of FIG. It is a figure which shows the influence degree table comprised in the influence memory | storage part of the integrated controller of FIG. It is a figure which shows another influence degree table comprised by the influence memory | storage part of the integrated controller of FIG. It is a figure which shows the influence degree table for demonstrating operation | movement of the integrated controller of FIG. It is a figure which similarly shows the influence degree table for demonstrating operation | movement of the integrated controller of FIG.

  Hereinafter, embodiments of the present invention will be described in detail. The centralized store management apparatus 1 according to the embodiment integrates and executes control of the showcases C1 to Cm installed in the store ST such as a supermarket and a convenience store, the refrigerator R, the store air conditioner AC of the store ST, and store lighting (not shown). This is called a store integrated management system.

  In FIG. 1, a plurality of showcases C1 to Cm are installed in the store ST (inside the store), and a refrigerator R that supplies refrigerant to these showcases C1 to Cm is located outside the store or in the store. It is installed in the machine room. The refrigerator R includes a compressor (not shown) that compresses and discharges the refrigerant, a condenser that condenses the high-temperature and high-pressure refrigerant discharged from the compressor by air cooling, water cooling, and the like.

  The showcases C1 to Cm are, for example, so-called open showcases in which the front surface, side surface, or top surface of the interior (display room) is open. Each showcase C1 to Cm is provided with an evaporator and a decompression device (not shown), which are connected to the refrigerator R by the refrigerant pipe 2 to constitute a known refrigerant circuit. Then, the refrigerant is evaporated by this evaporator, and the cool air cooled by the endothermic action by evaporation is circulated in the cabinet by a blower (not shown), thereby cooling the inside of each showcase C1 to Cm to a predetermined target temperature. A cooling operation is performed.

  The in-store air conditioner AC is composed of indoor units A1 to An as air conditioners mounted on the ceiling in the store and outdoor units (not shown) that supply refrigerant to them. In the embodiment, the indoor units A1 to An are used as the air conditioners. However, the present invention is not limited thereto, and a plurality of independent air conditioners may be attached to the ceiling.

  The showcases C1 to Cm, the refrigerator R, and the indoor units A1 to An each have a device controller 3, and the operation is controlled by the device controller 3. Each device controller 3 is connected to the integrated controller 6 via a communication line 4, and these constitute a network of the store centralized management apparatus 1. Each showcase C1 to Cm is provided with an internal temperature sensor 7 as an internal temperature measuring unit for measuring the internal temperature, and is connected to its own device controller 3. Note that a temperature sensor (not shown) that measures the intake air temperature and the like is also attached to the indoor units A1 to An.

  This integrated controller 6 is installed in the store ST. FIG. 2 shows a configuration diagram of the integrated controller 6. The integrated controller 6 includes a CPU 21 that performs control functions, a ROM 22 and a RAM 23 as storage devices, a communication I / F 26 that is connected to each device controller 3 in the store ST via a communication line 4, and an external device via a network such as a LAN. Network I / F 24 connected to the remote management system. The integrated controller 6 can input data such as various set values (target temperature, alarm setting, etc.) for controlling the showcases C1 to Cm, the refrigerator R, and the indoor units A1 to An. The data is stored in the RAM 23 and distributed from the communication I / F 26 to the equipment controllers 3 of the showcases C1 to Cm, the refrigerator R, and the indoor units A1 to An via the communication line 4.

  And the equipment controller 3 of each showcase C1-Cn controls the operation | movement of each showcase C1-Cn based on the data of the received target temperature, and the internal temperature which the internal temperature sensor 7 measured. Similarly, the equipment controller 3 of the refrigerator R controls the operation of the refrigerator R based on the received data, and the equipment controller 3 of the indoor units A1 to An also similarly receives the received target temperature data and the intake air temperature. The operation of each of the indoor units A1 to An is controlled. A similar device controller is also provided in the in-store lighting, and is turned on / off based on data received from the integrated controller 6.

  Further, the CPU 21 of the integrated controller 6 periodically polls each device controller 3 via the communication I / F 26, and each device controller 3 responds to each showcase C1 to Cm, refrigerator R, indoor unit. Data relating to the operating states of A1 to AN (measurement data such as the internal temperature and intake air temperature, alarm data) is transmitted to the integrated controller 6 (in-store lighting also transmits data relating to the on / off state). The integrated controller 6 stores the received data in the RAM 23 and saves and manages the collected data.

  Note that, when a failure occurs in each showcase A1, A2, etc. and an alarm is generated, the alarm data is notified from the device controller 3 to the integrated controller 6 at the time when the alarm is generated, regardless of periodic polling. Since the integrated controller 6 can display these data, this allows the integrated controller 6 to monitor and control the status of each device in the store ST, and to manage a plurality of devices collectively. It is configured.

  Further, the CPU 21 of the integrated controller 6 causes the indoor unit of the in-store air conditioner AC to be described in detail later when the inside cooling state of each showcase C1 to Cm deteriorates and the inside temperature becomes higher than the target temperature. The operation of A1 to An is controlled and the cooling air is sent into the storage of the showcases C1 to Cm to lower the internal temperature, that is, the indoor cooling of the showcases C1 to Cm is assisted by the indoor units A1 to An. Perform the action. The reason is that the in-store air conditioner AC is more energy efficient than the showcase cooling device composed of the showcases C1 to Cm and the refrigerator R.

  However, in order to assist the cooling of the showcases C1 to Cm with the indoor units A1 to An, basically, the indoor units A1 to An near the showcases C1 to Cm are used. It is necessary to set a layout indicating grouping in the store of the showcases C1 to Cm and the indoor units A1 to An.

  The integrated controller 6 also holds information related to the store layout. However, the integrated controller 6 has been conventionally set manually by a user or using a device such as a GPS or RFID tag. Was also soaring.

  Therefore, the present invention provides a system that automatically sets the groupings of the showcases C1 to Cm and the indoor units A1 to An using existing equipment. FIG. 3 is a functional block diagram of the integrated controller 6 related to the influence measurement operation to be described later for performing such grouping, and FIG. 4 is a functional block diagram of the integrated controller 6 related to the cooling support of the showcase in the store by the in-store air conditioner AC. Show. In FIG. 3 and FIG. 4, the same reference numerals indicate the same functions.

  In FIG. 3, the internal temperature acquisition unit 11 acquires the internal temperature measured by the internal temperature sensor 7 of each showcase C1 to Cm from the device controller 3 of each showcase C1 to Cm. The influence measuring unit 27 measures the degree of influence of each indoor unit A1 to An on each showcase C1 to Cm based on the inside temperature of each showcase C1 to Cm acquired by the inside temperature acquisition unit 11. Execute the degree measurement operation. The influence degree storage unit 12 stores the influence degree of each indoor unit A1 to An measured by the influence degree measurement unit 27 with respect to each showcase C1 to Cm.

  In FIG. 4, the group control unit 17 executes an internal cooling assist operation to be described later using the indoor units A1 to An grouped with the showcases C1 to Cm based on the influence degree stored in the influence degree storage unit 12. The device specifying unit 13 and the device operation determining unit 14 are configured. The equipment specifying unit 13 determines the indoor units A1 to An to be controlled for cooling assistance in the storage from the difference between the target temperature (internal temperature setting value) of each showcase C1 to Cm and the internal temperature, and the control The showcases C1 to Cm whose control state is to be changed are specified. The device operation determining unit 14 lowers the target temperature (air conditioning temperature set value) for the indoor units A1 to An and the showcases C1 to Cm specified by the device specifying unit 13, or as described later, A control instruction such as increasing the temperature setting value) is determined. The instruction transmission unit 16 transmits the control instruction determined by the device operation determination unit 14 of the group control unit 17 to the device controllers 3 of the indoor units A1 to An and the showcases C1 to Cm.

(1) Influence Measurement Operation Next, the influence measurement operation performed by the integrated controller 6 will be described with reference to the flowchart of FIG. The influence measuring unit 27 (FIG. 3) of the integrated controller 6 sets the counter i to 1 in step S1 of FIG. 5 when each device is installed in the store ST and an instruction of the influence measuring operation is input. In this influence degree measurement operation, the powers of the showcases C1 to Cm, the indoor units A1 to An, and the integrated controller 6 are turned on, but operations other than the device controller 3 and the internal temperature sensor 7 are stopped. It shall be. In particular, the integrated controller 6 instructs the equipment controller 3 of the refrigerator R to stop the operation, that is, stop the supply of refrigerant to the showcases C1 to Cm. Therefore, the inside cooling operation of each showcase C1 to Cm is stopped. In the present embodiment, the refrigerant supply to all the showcases C1 to Cm is stopped. However, the present invention is not limited to this, and the refrigerant supply is stopped only for an arbitrary showcase whose influence is to be measured. May be. Similarly, the following steps may be performed only for the arbitrary showcase.

  In the flowchart, when the counter i is 1, it means the indoor unit A1, 2 is the indoor unit A2, and n is the indoor unit An. That is, in step S1, the indoor unit A1 is set as a device on the side to be influenced. Next, in step S2, all the indoor units A1 to An are stopped, and in step S3, it is determined whether or not the interior temperatures of all the showcases C1 to Cm are stable. If the inside temperature of any of the showcases C1 to Cm is not yet stable at the beginning of the influence measurement operation, the process proceeds to step S9, waits for a certain time, returns to step S3, and all the showcases thereafter. Wait until the internal temperature of C1 to Cm is stabilized.

  And when the chamber temperature of all the showcases C1-Cm is stabilized in step S3, it progresses to step S4 and the chamber temperature acquisition part 11 of the integrated controller 6 carries out the chamber temperature from the apparatus controller 3 of all the showcases C1-Cm. The present interior temperature T1 of each showcase C1 to Cm measured by the sensor 7 is acquired.

  Next, in step S5, only the indoor unit A1 is operated and waits for a certain time (for example, 1 hour). The cold air blown out by the operation of the indoor unit A1 enters into the cabinets of the showcases C1 to Cm, or lowers the space temperature around it to have a cooling effect. Next, after waiting for a certain time, the inside temperature acquisition unit 11 of the integrated controller 6 in FIG. 3 again shows each showcase C1 measured by the inside temperature sensor 7 from the equipment controllers 3 of all the showcases C1 to Cm in step S6. The internal temperature T2 after waiting for a certain time of ~ Cm is acquired.

  Then, the influence measuring unit 27 of the integrated controller 6 in FIG. 3 uses the absolute value of the internal temperature T2—the internal temperature T1 acquired in step S7, that is, the absolute value of the temperature change, as shown in FIG. 12 and whether or not all indoor units A1 to An have been completed is determined in step S8. If not completed, the counter i is incremented by one in step S10, that is, after the next indoor unit A2 is set as an influencing device, the process returns to step S2, and this is repeated until the counter i becomes n.

  And when the said operation | movement is performed about all the indoor units A1-An in step S8 (a counter is n), the influence measurement part 27 complete | finishes influence measurement operation. In this embodiment, the degree of influence is measured for all indoor units A1 to An. However, the degree of influence is not limited thereto, and the degree of influence may be measured only for an arbitrary indoor unit. FIG. 6 shows an example of the influence degree table measured in this way, and is configured in the influence degree storage unit 12 of the integrated controller 6. As is apparent from this table, when the indoor unit A1 is operated, the internal temperature of the showcase C3 is reduced by 3 degrees, and the influence is large. That is, the indoor unit A1 is located near the showcase C3. Further, since the showcase C2 is adjacent (near) the showcase C3, it can be seen that the influence of the indoor unit A1 also appears in the showcase C2 and decreases by 2 deg in the showcase C2.

  In addition, the showcase C3 is also affected next by the indoor unit An, which is 2 deg lower. That is, it can be seen that the indoor unit An is also located near the showcase C3 next to the indoor unit A1. The indoor unit An has the most influence on the showcase C2 and is lowered by 4 degrees. Also, it can be seen that the indoor unit A3 has the most influence on the showcase C1, which is also reduced by 4 degrees.

  In the above description, the change in the internal temperature of each showcase C1 to Cm when one indoor unit A1 to An is operated is measured. As described above, the indoor unit An is also a showcase next to the indoor unit A1. Since C3 is affected, it is also effective to measure the degree of influence on the showcase C3 when these are operated simultaneously. FIG. 7 shows an example of another influence degree table stored in the influence degree storage unit 12 in this case.

  The example shown in this figure is a change in the internal temperature when the indoor units A1 and An are operated simultaneously only for the showcase C3 (internal temperature T2−absolute value of the internal temperature T1). It can be seen that the degree of influence of cooling is even greater than that, and the internal temperature of the showcase C3 is reduced by 4 deg. Then, various combinations of indoor units A1 to An that are considered to have a large influence with reference to the influence of FIG. 6 are executed for each showcase C1 to Cm to constitute a table.

  By such a method, the integrated controller 6 uses the devices such as the existing internal temperature sensor 7 to influence the showcases C1 to Cm of the indoor units A1 to An of the in-store air conditioner AC installed in the store ST. Get the degree automatically. This degree of influence corresponds to the position information in the stores ST of the showcases C1 to Cm and the rooms A1 to An, so that there is no need to manually set the position information as in the prior art, such as GPS and RFID tags. This also eliminates the need for a location search using the above-mentioned equipment, thus realizing an inexpensive and simple energy-saving operation in the store.

  In the above description, the absolute value of the internal temperature T2−the internal temperature T1 is directly stored in the influence degree table and used as the influence degree. However, the present invention is not limited to this, and other parameters proportional to the change in the internal temperature or the internal temperature The influence degree table may be configured using the time until the temperature drops by a certain temperature (for example, 1 ° C.).

(2) Internal cooling assistance operation Next, an operation for assisting cooling of the interior of the showcases C1 to Cm by the indoor units A1 to An using the influence degree in the influence degree storage unit 12 thus acquired will be described. To do. During the cooling operation of the showcases C1 to Cm as described above, the device specifying unit 13 in FIG. 4 of the integrated controller 6 compares the target temperature of each showcase C1 to Cm with the current internal temperature, and the difference ( It is determined whether or not (temperature difference) is greater than a predetermined threshold value 1 or greater than a threshold value 2, for example. Note that threshold 2 is greater than threshold 1.

  For example, the internal cooling state of the showcase C3 deteriorates due to some factor such as a large amount of goods being replenished, the current internal temperature becomes higher than the target temperature, and the temperature difference (internal temperature−target temperature) is increased. When the threshold value is greater than the threshold value 1 but less than or equal to the threshold value 2, the device specifying unit 13 searches the indoor unit A1 having the greatest influence on the showcase C3 from the influence degree table shown in FIG. Specify the control object for 4 determines a control instruction for lowering the target temperature of the indoor unit A1 by a predetermined value, and the instruction transmission unit 16 of FIG. 4 transmits this control instruction to the indoor unit A1.

  In response to the control instruction from the integrated controller 6, the device controller 3 of the indoor unit A1 lowers the target temperature (air conditioning temperature set value) by a predetermined value. As a result, the cooling capacity of the indoor unit A1 increases, so that a large amount of cooling air, which is blown out, enters the inside of the showcase C3 or the surrounding space temperature decreases. The inside temperature of the showcase C3 will decrease.

  As a result, the interior of the showcase C3 can be cooled with the energy efficient in-store air conditioner AC, and the power consumption in the store ST can be effectively reduced.

  On the other hand, when the temperature inside the chamber is large and the temperature difference from the target temperature is larger than the threshold value 2, the device specifying unit 13 in FIG. 4 has a room that has the greatest influence on the showcase C3 next to the indoor unit A1. The machine An is searched from the influence degree table shown in FIG. 8 and specified as a control target for the interior cooling assistance together with the indoor unit A1. Thereby, in addition to the indoor unit A1, the target temperature of the indoor unit An is also lowered by a predetermined value, and the cooling capacity of the two indoor units A1 and An is increased to assist the cooling of the showcase C3 in the cabinet. As a result, the temperature in the cabinet will drop smoothly.

  In this way, by adjusting the number of indoor units A1 to An that have a large degree of influence to increase the cooling capacity in accordance with the cooling state of the showcase C3 in the cabinet (in the embodiment, increase to two units A1 and An), Cooling the inside of the showcase C3 can be realized more effectively.

(3) Operation at the time of defrosting of the showcase On the other hand, each showcase C1 to Cm executes a defrosting operation of the mounted evaporator according to a command from the integrated controller 6 or the like. This defrosting operation is generally a so-called off-cycle differential in which the blower is operated in a state where the supply of refrigerant to the evaporator is stopped. In that case, since the inside cooling by the evaporator is stopped, the inside temperature naturally rises, but the device specifying unit 13 of the integrated controller 6 affects the showcases C1 to Cm where the defrosting is started. The indoor units A1 to An having large degrees (in the case of the showcase C3, the indoor units A1 and An) are searched from the influence degree table, and the control instruction for the target temperature decrease is determined by the equipment operation determination unit 14 as described above. It transmits from the transmission part 16 and increases the air_conditioning | cooling capability of an indoor unit.

  Thus, even when defrosting the showcases C1 to Cm, if the cooling capacity of the indoor units A1 to An having a large influence stored in the influence storage unit 12 is increased, the showcase by defrosting is performed. It is possible to suppress or avoid the deterioration of the product by suppressing the increase in the internal temperature of C1 to Cm.

(4) Overcooling prevention operation of adjacent showcase When the cooling capacity of the indoor unit A1 or An is increased as described above, the showcase C2 near the showcase C3 is also cooled as shown in FIG. Due to the influence, the showcase C2 in which the internal cooling state has not deteriorated is disadvantageously overcooled due to the entrance of cooling air from the indoor units A1 and An with increased cooling capacity.

  Therefore, when the cooling capacity of the indoor units A1 and An is increased as described above, the device specifying unit 13 of the integrated controller 6 also specifies the showcase C2 from the influence degree table of FIG. And the apparatus operation | movement determination part 14 determines the control instruction | command which raises the target temperature of showcase C2 temporarily, and transmits to the apparatus controller 3 of showcase C2 from the instruction transmission part 16. FIG.

  Thereby, in the showcase C2, the internal cooling capacity is temporarily reduced, so that the overcooling in the internal storage generated in the nearby showcase C2 can be avoided in advance.

1 Store central management device 3 Equipment controller 6 Integrated controller 7 Internal temperature sensor (Internal temperature measurement unit)
A1-An indoor unit (air conditioner)
AC In-store air conditioner C1-Cm Showcase R Refrigerator ST Store

Claims (7)

In the centralized management system for stores that collectively manage the operation of multiple showcases and air conditioners installed in the store,
An internal temperature measuring unit for measuring the internal temperature of each showcase;
In the state where the cooling operation in the showcase is stopped, an influence measuring unit that measures a change in the temperature in the showcase when each of the air conditioners is operated,
A store centralized management apparatus comprising: an influence storage unit that stores an influence degree of the air conditioner on the showcase measured by the influence measurement unit.   The cooling capacity of the air conditioner having a large influence on the showcase stored in the influence storage unit is increased when the inside cooling state of the showcase is deteriorated. Store central management device.   The store centralized management apparatus according to claim 2, wherein the number of air conditioners having a large influence that increases the cooling capacity is adjusted according to the cooling state of the showcase in the store.   The store centralized management apparatus according to claim 2 or 3, wherein the in-store cooling capacity of the showcase in the vicinity of the showcase in which the in-store cooling state is deteriorated is reduced.   The store concentration according to claim 1, wherein when performing defrosting of the showcase, the cooling capacity of the air conditioner having a large influence on the showcase stored in the influence storage unit is increased. Management device.   The store centralized management apparatus according to any one of claims 1 to 5, wherein the showcase is an open showcase.   With one of the plurality of air conditioners installed in the store operating, with the cooling operation in the storage of the plurality of showcases installed in the store stopped, the storage of each showcase at that time An influence degree measurement method for an air conditioner on a showcase, wherein the influence degree of the air conditioner on the showcase is measured by measuring a change in internal temperature.

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