JP7073242B2 - Store equipment control system - Google Patents

Description

Patent Law Article 30 Paragraph 2 Applicable Sale Date May 15, 2018 Sales Destination Super Center Trial Kanoya Store 1950-1, Kasanohara-cho, Kanoya-shi, Kagoshima

The present invention is applied to stores such as supermarkets equipped with air-conditioning equipment that harmonizes the air in the store and refrigeration equipment that displays products in a cooled state, and at least comprehensively saves energy in store equipment including air-conditioning equipment and refrigeration equipment. Regarding the store equipment control system to realize.

As an example of this type of control system, for example, in Patent Document 1, when the magnitude of the load of the showcase is detected based on the operating state of the compressor constituting the showcase (refrigerating equipment) and the load increases. In addition, control is performed to lower the set temperature of the cooling operation of the air conditioner (air conditioner) below the specified value. By lowering the set temperature, that is, the temperature inside the store, the load on the showcase can be reduced and its power consumption can be reduced. The power consumption of the air conditioner increases by the amount that the set temperature is lowered, but the air conditioner generally has a higher COP (cooling performance) than the showcase. That is, in Patent Document 1, based on the finding that the increase in the power consumption of the air conditioner is smaller than the decrease in the power consumption of the showcase, the total power consumption of the air conditioner and the showcase is reduced, that is, the entire store. Aiming for energy saving.

Japanese Unexamined Patent Publication No. 2004-205194

The control system of Patent Document 1 does not consider the comfort of the user in the store, and there is room for improvement in this respect. In other words, if the set temperature of the air conditioning equipment is lowered below the specified value for the purpose of energy saving, the temperature inside the store may drop too much and the user may feel chilly. Further, in Patent Document 1, the influence of the arrangement relationship between the air conditioning equipment and the refrigerating equipment (showcase) is not taken into consideration. That is, if the air-conditioning equipment is relatively close to the refrigerating equipment, as is found in Patent Document 1, by lowering the set temperature of the air-conditioning equipment, the temperature around the refrigerating equipment is lowered (the load is reduced). It is possible to reduce the power consumption of refrigerating equipment, and as a result, the amount of decrease in power consumption of refrigerating equipment exceeds the amount of increase in power consumption of air conditioning equipment, and the total power consumption of both equipment is often reduced. On the other hand, if the air-conditioning equipment is relatively far from the refrigerating equipment, even if the set temperature of the air-conditioning equipment is lowered, the effect of lowering the temperature around the refrigerating equipment (reducing the load) is poor, and the power consumption of the refrigerating equipment is too low. It cannot be reduced. As a result, the increase in power consumption of the air-conditioning equipment may exceed the decrease in the power consumption of the refrigeration equipment, leading to a situation in which the total power consumption rises instead (actually, the ventilation of the air-conditioning equipment is the refrigeration equipment). Air conditioning equipment is rarely placed near refrigeration equipment because it adversely affects the air curtains of (showcases)). In other words, lowering the set temperature of the air conditioning equipment does not necessarily lead to energy saving of the entire store.

The present invention saves energy by reducing the total power consumption of store equipment including at least both equipment, regardless of the arrangement of air conditioning equipment and refrigerating equipment, within the range that does not impair the comfort of users in the store. The purpose is to obtain a store equipment control system that can be realized.

The store equipment control system according to the present invention is provided in a store equipped with air conditioning equipments 1 to 3 that harmonize the air in the space S in the store and refrigerating equipments 4 and 5 that are installed in the space S and display products in a cooled state. The air-conditioning control means 11 that controls the operating state of the air-conditioning equipment 1 to 3, the set value indicating means 12 that instructs the air-conditioning control means 11 to set the temperature of the air-conditioning equipment 1 to 3, and the like. The data storage means 14 that periodically measures the operating states of the air conditioning equipments 1 to 3 and the refrigerating equipments 4 and 5 and stores them in the database 13, and the set value indicating means 12 that extracts necessary measurement data from the database 13 The data adding means 15 for output and the temperature zone designating means 16 for outputting the comfortable temperature zone capable of maintaining the comfort of the user in the space S are provided for the set value indicating means 12. The database 13 includes at least date and time information, the set temperature of the air conditioning equipment 1 to 3 at the date and time, the power consumption of the air conditioning equipment 1 to 3 and the refrigerating equipment 4.5 at the date and time, and at least the outside air temperature at the date and time. Measurement data associated with environmental measurements is accumulated. The data adding means 15 extracts the measurement data whose error from the current environment measurement value is within a predetermined allowable range from the measurement data stored in the database 13 as environment approximation data, and sets value indicating means. Output to 12. Based on the measurement data output from the data adding means 15, the set value indicating means 12 consumes power of the air conditioning equipments 1 to 3 and the refrigerating equipments 4 and 5 within a range in which the air temperature in the space S falls within the comfortable temperature zone. The set temperature of the air conditioning equipment 1 to 3 is derived so that the total is minimized. The data adding means 15 sets the measurement data from the present to several days ago and the measurement data of the same season before the previous year as the first search target of the environment approximation data, and sets the range of the date and time of the measurement data to be the search target. , The environment approximation data is searched for the specified number of times while expanding at least one of the allowable range of the error of the environmental measurement value step by step, and the environment approximation data is searched before the specified number of searches. If the number reaches the specified value, the search ends before the specified number of times is reached.

Environmental measurements can include outside air temperature and humidity, air temperature and humidity in space S, and carbon dioxide concentration in space S.

In addition to the formal mode in which the means 11/12/14/15/16 are used, the initial mode in which the set value indicating means 12 and the data assigning means 15 among the means 11/12/14/15/16 is not used. Can be prepared. The temperature zone designating means 16 in the initial mode instructs the air conditioning control means 11 to set the temperature of the air conditioning equipment 1 to 3 within the range of the comfortable temperature zone. In the initial mode, the data storage means 14 periodically measures at least the operating states of the air-conditioning equipments 1 to 3 and the refrigerating equipments 4 and 5 while controlling the operating states of the air-conditioning equipments 1 to 3 by the air-conditioning control means 11. Accumulate in 13.

The temperature zone designating means 16 in the initial mode can periodically instruct the air conditioning control means 11 of the upper limit value and the lower limit value of the comfortable temperature zone as the set temperature of the air conditioning equipment 1 to 3.

The second cycle T2 in which the air conditioning control means 11 reviews the operating state of the air conditioning equipment 1 to 3 can be set shorter than the first cycle T1 in which the set value indicating means 12 instructs the set temperature.

The in-store temperature sensor 21 that detects the air temperature in the space S is arranged closer to the user in the space S than the ceiling of the space S, and the air conditioning control means 11 sets the detection value of the in-store temperature sensor 21. It is possible to take a form of controlling the operating state of the air conditioning equipment 1 to 3 based on the set temperature instructed by the value indicating means 12.

One space S is divided into a plurality of areas A1 to A3, air conditioning equipment 1 to 3 are installed corresponding to each area A1 to A3, and refrigerating equipment 4 and 5 are installed only in some areas A1 and A2. is set up. The set value indicating means 12 instructs the air conditioning control means 11 to set the temperature of the air conditioning equipment 1 to 3 for each of the areas A1 to A3. The temperature zone designating means 16 outputs a comfortable temperature zone for each of the regions A1 to A3, and outputs different comfortable temperature zones between the regions A1 and A2 provided with the refrigerating equipment 4 and 5 and the regions A3 not provided with the refrigerating equipment 4 and 5. It can take a form.

In a store equipped with a ventilation facility 6 for ventilating the air in the space S, the data storage means 14 periodically measures the operating state of the ventilation facility 6 in addition to the air conditioning facilities 1 to 3 and the refrigerating facilities 4 and 5. The database 13 can be stored. The database 13 contains at least date and time information, measurement data in which the set temperatures of the air conditioners 1 to 3 at the date and time are associated with the power consumption of the air conditioners 1 to 3, the refrigerating equipments 4 and 5, and the ventilation equipment 6 at the date and time. Is accumulated. The set value indicating means 12 can derive the set temperature of the air conditioning equipment 1 to 3 so that the total power consumption of the air conditioning equipment 1 to 3, the refrigerating equipment 4 and 5, and the ventilation equipment 6 is minimized.

The ventilation control means 17 for controlling the operating state of the ventilation equipment 6 is provided, and the set value indicating means 12 minimizes the total power consumption of the air conditioning equipments 1 to 3, the refrigerating equipments 4 and 5, and the ventilation equipment 6. In addition, the set temperature of the air conditioning equipment 1 to 3 and the operation set value of the ventilation equipment 6 can be derived and instructed to the air conditioning control means 11 and the ventilation control means 17.

The dehumidifying equipment 7 for lowering the humidity of the air in the space S is provided, and the dehumidifying equipment 7 is an outside air treatment type that takes in the outside air, performs the dehumidifying treatment, and supplies the dry air after the dehumidifying treatment to the space S. In the store, the data storage means 14 can periodically measure the operating state of the dehumidifying equipment 7 in addition to the air conditioning equipments 1 to 3, the refrigerating equipments 4 and 5, and the ventilation equipment 6 and store them in the database 13. In the database 13, at least the date and time information, the set temperature of the air conditioning equipment 1 to 3 at the date and time, and the power consumption of the air conditioning equipment 1 to 3, the refrigerating equipment 4 and 5, the ventilation equipment 6 and the dehumidifying equipment 7 at the date and time are stored. The associated measurement data is accumulated. The set value indicating means 12 may derive the set temperature of the air conditioning equipment 1 to 3 so that the total power consumption of the air conditioning equipment 1 to 3, the refrigerating equipment 4 and 5, the ventilation equipment 6 and the dehumidifying equipment 7 is minimized. can.

The ventilation control means 17 for controlling the operating state of the ventilation equipment 6 and the dehumidifying control means 18 for controlling the operating state of the dehumidifying equipment 7 are provided, and the set value indicating means 12 is the air conditioning equipment 1 to 3 and the refrigerating equipment 4. -The air-conditioning control means by deriving the set temperature of the air-conditioning equipments 1 to 3 and the operation set values of the ventilation equipment 6 and the dehumidifying equipment 7 so that the total power consumption of the air-conditioning equipment 6 and the dehumidifying equipment 7 is minimized. 11. The form instructed to the ventilation control means 17 and the dehumidification control means 18 can be adopted.

In the store equipment control system according to the present invention, the air conditioning control means 11 for controlling the operating state (starting / stopping, that is, on / off state, air volume, etc.) of the air conditioning equipment 1 to 3 and the air conditioning equipment 1 to 3 with respect to the air conditioning control means 11 The set value indicating means 12 for instructing the set temperature, the data accumulating means 14 for periodically measuring the operating states of the air conditioning equipments 1 to 3 and the refrigerating equipments 4 and 5 and storing them in the database 13, and the necessary measurements from the database 13. The data addition means 15 for extracting data and outputting it to the set value indicating means 12 and the temperature zone designating means 16 for outputting a comfortable temperature zone capable of maintaining the comfort of the user in the space S are provided. Here, in the database 13, at least date and time information, measurement data relating the set temperature of the air conditioning equipments 1 to 3 at the date and time, and the power consumption of the air conditioning equipments 1 to 3 and the refrigerating equipments 4 and 5 at the date and time are accumulated. Has been done. Therefore, the set value indicating means 12 is based on the past measurement data output from the data adding means 15, and the air conditioning equipment 1 to 3 and the refrigerating equipment 4 and 5 are provided within a range in which the air temperature in the space S is within the comfortable temperature zone. The optimum solution of the set temperature of the air conditioning equipment 1 to 3 can be derived so that the total power consumption is minimized. That is, according to the present invention, energy saving is achieved by minimizing the total power consumption of the air conditioning equipments 1 to 3 and the refrigerating equipments 4 and 5 within a range that does not impair the comfort of the user in the space S. It can be realized.

Also, as mentioned above, if the air conditioning equipment is relatively close to the refrigerating equipment, the temperature around the refrigerating equipment is lowered (the load is reduced) by lowering the set temperature of the air conditioning equipment, and the consumption of the refrigerating equipment is consumed. Power can be reduced, and as a result, the decrease in power consumption of refrigerating equipment exceeds the increase in power consumption of air conditioning equipment, and the total power consumption of both equipment is often reduced. On the other hand, if the air-conditioning equipment is relatively far from the refrigerating equipment, even if the set temperature of the air-conditioning equipment is lowered, the effect of lowering the temperature around the refrigerating equipment (reducing the load) is poor, and the power consumption of the refrigerating equipment is too low. It cannot be reduced. As a result, the increase in power consumption of the air conditioning equipment may exceed the decrease in the power consumption of the refrigeration equipment, leading to a situation in which the total power consumption increases. On the other hand, in the present invention, the past measurement data regarding the power consumption of the air conditioning equipments 1 to 3 and the refrigerating equipments 4 and 5 are used. That is, since it is possible to grasp the degree of the effect of lowering the set temperature of the air conditioning equipment 1 to 3 (the effect of reducing the load of the refrigerating equipment 4 and 5) based on the past measurement data, it is possible to grasp the degree of the effect in the space S. Regardless of the arrangement relationship between the air conditioning equipment 1 to 3 and the refrigerating equipment 4 and 5, it is possible to derive the optimum solution that minimizes the total power consumption of both equipments 1 to 5.

The data adding means 15 can be set to extract the measurement data from the present to several days ago and the measurement data of the same season before the previous year from the database 13 and output them to the set value indicating means 12. Since the measurement data of the last few days and the same season before the previous year is useful for the set value indicating means 12 to derive the optimum solution, limiting the output measurement data to these affects the accuracy of the optimum solution. The amount of data can be minimized within the range in which the above is not given, and it is possible to contribute to the improvement of the processing speed in the set value indicating means 12.

The data adding means 15 compares the environmental measurement value included in the measurement data of the database 13 with the current environmental measurement value, extracts the measurement data whose error is within the allowable range, and extracts the measurement data as the environment approximation data, and sets the value. It can be set to output to the instruction means 12. Since the measurement data in an environment where the outside air temperature is close is particularly useful for the set value indicating means 12 to derive the optimum solution, the optimum solution is maintained with high accuracy by limiting the measurement data to be output to these. However, the amount of data can be minimized, which can contribute to the improvement of the processing speed of the set value indicating means 12. It is possible to simply extract the measurement data of the same day of the previous year and the period before and after that, but this method is used when the climate of the previous year or this year is different from the whole year (for example, the rainy season is early, the residual heat is long, etc.). Measurement data under significantly different environments may be output to the set value indicating means 12, and the accuracy of the optimum solution derived by the means 12 may decrease. On the other hand, according to the present invention, even if the climate is different from that of the whole year, the measurement data in the environment close to the present, that is, the environment approximation data is surely extracted and output to the set value indicating means 12. This makes it possible to improve the accuracy of the optimum solution derived by the means 12.

The measurement data from the present to several days ago and the measurement data of the same season before the previous year can be set as the first search target of the environment approximation data. Since these measurement data are particularly likely to include environment approximation data, by limiting the search target to these, it is possible to shorten the processing time while maintaining the search accuracy of the environment approximation data. In addition, if you search for environmental approximation data over a specified number of times while gradually expanding at least one of the date and time range of the measurement data to be searched and the allowable range of error of the environmental measurement value, this year Even if the environment approximation data cannot be found at first due to the different climate before the previous year, it will be possible to find the environment approximation data soon. Further, if the number of environment approximation data reaches the specified value before the specified number of searches is performed, the processing time can be shortened by ending the search before the specified number of searches is reached.

Environmental measurements can include outside air temperature and humidity, and the temperature and humidity of space S, as well as the carbon dioxide concentration of space S. Many stores are equipped with a ventilation facility 6 for satisfying the legal ventilation volume of the space S, and the carbon dioxide concentration often affects the operating state of the ventilation facility 6. The operating condition of the ventilation equipment 6 causes fluctuations in the loads of the air conditioning equipments 1 to 3 and the refrigerating equipments 4 and 5, and even if the temperature and humidity of the outside air and the space S are the same, the operating conditions of the ventilation equipment 6 are different. For example, the optimum set temperature of the air conditioning equipment 1 to 3 is also different. When the carbon dioxide concentration is included in the environmental measurement value as in the present invention, it is possible to extract environmental approximation data in which not only the temperature and humidity but also the carbon dioxide concentration are close to each other and output it to the set value indicating means 12. As a result, the accuracy of the optimum solution of the set temperature of the air conditioning equipment 1 to 3 derived by the means 12 is further improved.

In order to execute the formal mode using each of the above means 11, 12, 14, 15, and 16, it is necessary that the measurement data for the past predetermined period is stored in the database 13, and the measurement data is insufficient. Even if the formal mode is executed in the state, the optimum solution cannot be obtained with high accuracy. Therefore, in the present invention, in addition to the formal mode, an initial mode that can be executed even when there is no past measurement data is provided. In the initial mode, the temperature zone designating means 16 instructs the air conditioning control means 11 to set the temperature of the air conditioning equipment 1 to 3 within the comfortable temperature zone without using the set value indicating means 12 and the data assigning means 15. do. Then, while controlling the operating states of the air conditioning equipments 1 to 3 by the air conditioning control means 11, the data storage means 14 periodically measures at least the operating states of the air conditioning equipments 1 to 3 and the refrigerating equipments 4 and 5 and stores them in the database 13. accumulate. According to this, in the initial operation of the system where the past measurement data is insufficient, the measurement data is accumulated while executing the initial mode, and when a sufficient amount of measurement data is accumulated, the system smoothly shifts to the official mode. be able to.

When the temperature zone designating means 16 in the initial mode periodically indicates the upper limit value and the lower limit value of the comfortable temperature zone as the set temperature of the air conditioning equipment 1 to 3, the air conditioning equipment 1 to 3 are set at these set temperatures. The power consumption and the like when the vehicle is actually operated can be stored in the database 13 as measurement data. When such measurement data is accumulated, when the mode shifts to the formal mode, the set value indicating means 12 is based on the measurement data, and the limit value of the set temperature for maintaining the space S in the comfortable temperature zone ( The upper limit in summer and the lower limit in winter) can be predicted. By setting the set temperature to or near the limit value, the total power consumption of the air conditioning equipments 1 to 3 and the refrigerating equipments 4 and 5 can be further reduced.

When the second cycle T2 in which the air conditioning control means 11 reviews the operating state of the air conditioning equipment 1 to 3 is set shorter than the first cycle T1 in which the set value indicating means 12 indicates the set temperature, the air temperature in the space S becomes a comfortable temperature. Even if the air-conditioning equipment 1 to 3 is about to come off the belt, the operating state of the air-conditioning equipment 1 to 3 can be reviewed at an early stage, so that the comfort of the user in the space S can be more reliably maintained. Further, since the derivation of the set temperature in the set value indicating means 12 imposes a relatively large load on the system, it is possible to reduce the load on the system by lengthening the first period T1 in which the means 12 operates. can.

By arranging the in-store temperature sensor 21 that detects the air temperature in the space S closer to the user than the ceiling of the space S, the temperature around the user can be accurately known. By controlling the operating states of the air conditioners 1 to 3 based on the detection value of the in-store temperature sensor 21 and the set temperature instructed by the set value indicating means 12, the surroundings of the user are surely maintained at a comfortable temperature. can do.

In a relatively large-scale store such as a food supermarket, areas A1 and A2 provided with refrigerating facilities 4 and 5 and areas A3 not provided with the refrigerating facilities 4 and 5 are provided in one space S, and the areas A1 to A3 are provided. Each area A1 to A3 is individually air-conditioned by the corresponding air-conditioning equipments 1 to 3. In the areas A1 and A2 provided with the refrigerating equipments 4 and 5, it is possible to reduce the load of the refrigerating equipments 4 and 5 by lowering the room temperature within a range that does not impair the comfort of the user, and as a result, the air conditioning equipment 1・ The total power consumption of 2 and refrigerating equipment 4 and 5 often decreases, but there is no such situation in area A3 where refrigerating equipment 4 and 5 are not provided, and especially in summer, air conditioning equipment 3 is used to the extent possible. By lowering the output, the power consumption of the equipment 3 can be reduced and energy saving can be achieved. Therefore, in the present invention, the temperature zone designating means 16 outputs a comfortable temperature zone different between the regions A1 and A2 provided with the refrigerating equipment 4 and 5 and the region A3 not provided with the refrigerating equipment 4 and 5. According to this, it is possible to derive the optimum set temperature of the air conditioning equipment 1 to 3 for each area A1 to A3 depending on the presence or absence of the refrigerating equipment 4 and 5, and the set temperature of each air conditioning equipment 1 to 3 can be uniformly set. Compared to the specified case, the power consumption can be further reduced.

The operating state of the ventilation equipment 6 in addition to the air conditioning equipment 1 to 3 and the refrigerating equipment 4 and 5 is periodically measured, and at least the date and time information and the set temperature of the air conditioning equipment 1 to 3 at the relevant date and time are stored in the database 13. It is possible to accumulate measurement data associated with the power consumption of the air conditioning equipment 1 to 3, the refrigerating equipment 4 and 5, and the ventilation equipment 6 at the date and time. Then, the set value indicating means 12 can derive the set temperature of the air conditioning equipment 1 to 3 so that the total power consumption of the air conditioning equipment 1 to 3, the refrigerating equipment 4 and 5, and the ventilation equipment 6 is minimized. In this way, if the control is performed in consideration of the power consumption of the ventilation equipment 6, it is possible to realize more energy saving in the entire store.

Ventilation control means 17 for controlling the operating state of the ventilation equipment 6 is provided, and the set value indicating means 12 derives the operation set value of the ventilation equipment 6 together with the set temperature of the air conditioning equipment 1 to 3, and the air conditioning control means 11 and the ventilation control means It can be configured to instruct 17. In this way, if the ventilation equipment 6 can be controlled by the system in addition to the air conditioning equipments 1 to 3, the set value indicating means 12 can derive a better optimum solution, and the power consumption of the entire store can be further reduced. Can be done.

The operating state of the dehumidifying equipment 7 in addition to the air-conditioning equipments 1 to 3, the refrigerating equipments 4 and 5, and the ventilation equipment 6 is periodically measured. It is possible to accumulate measurement data in which the set temperature is associated with the power consumption of the air conditioning equipment 1 to 3, the refrigerating equipment 4 and 5, the ventilation equipment 6 and the dehumidifying equipment 7 at the relevant date and time. Then, the set value indicating means 12 derives the set temperature of the air conditioning equipment 1 to 3 so that the total power consumption of the air conditioning equipment 1 to 3, the refrigerating equipment 4 and 5, the ventilation equipment 6 and the dehumidifying equipment 7 is minimized. be able to. In this way, if the control is performed in consideration of the power consumption of the dehumidifying equipment 7, the energy saving of the entire store can be realized.

A dehumidifying control means 18 for controlling the operating state of the dehumidifying equipment 7 is provided, and the set value indicating means 12 derives the operating set value of the dehumidifying control means 18 together with the set temperature of the air conditioning equipment 1 to 3 and the operation set value of the ventilation equipment 6. , The air conditioning control means 11, the ventilation control means 17, and the dehumidification control means 18 can be configured to instruct. In this way, if the dehumidifying equipment 7 can be controlled by the system in addition to the air conditioning equipment 1 to 3 and the ventilation equipment 6, the set value indicating means 12 can derive a better optimum solution, and the power consumption of the entire store can be reduced. It can be further reduced.

It is a schematic block diagram of the store to which the store equipment control system which concerns on embodiment of this invention is applied. It is a block diagram of a store equipment control system. It is a flowchart which shows the control procedure by a store equipment control system. It is a block diagram of the initial mode of a store equipment control system. It is a block diagram of the store equipment control system which concerns on another Embodiment of this invention.

(Example) FIGS. 1 to 3 show examples in which the store equipment control system according to the present invention is applied to a food supermarket. As shown in FIG. 1, one space S in the store of a food supermarket includes a first region A1 air-conditioned by the first air-conditioning equipment 1 and a second region A2 air-conditioned by the second air-conditioning equipment 2. It is divided into a third area A3 that is air-conditioned by the third air-conditioning equipment 3. Each air conditioner 1 to 3 includes indoor units 1a to 3a installed on the ceiling surface of each area A1 to A3, outdoor units 1b to 3b installed outside the store, indoor units 1a to 3a, and outdoor units 1b to. It is composed of refrigerant pipes 1c to 3c and the like connecting 3b. The air-conditioning equipments 1 to 3 are often provided with a plurality of indoor units 1a to 3a, respectively, but in this figure, only one unit is displayed for simplification. Further, in the present embodiment, each air conditioner 1 to 3 is individually provided with the outdoor units 1b to 3b, but one outdoor unit can be shared by a plurality of air conditioners 1 to 3.

In the first area A1, a plurality of open-top frozen showcases 4a for displaying frozen foods are installed, and in the second area A2, a plurality of open-front refrigerated showcases 5a for displaying refrigerated foods are installed. A plurality of display shelves 9 for displaying non-cold foods (confectionery, etc.) are installed in the third area A3. The showcases 4a and 5a are connected to the outdoor units 4b and 5b installed outside the store via the refrigerant pipes 4c and 5c. The refrigerating showcase 4a, the outdoor unit 4b, and the refrigerant pipe 4c constitute the first refrigerating equipment 4, and the refrigerating showcase 5a, the outdoor unit 5b, and the refrigerant pipe 5c constitute the second refrigerating equipment 5. In this embodiment, each refrigerating equipment 4 and 5 is individually provided with outdoor units 4b and 5b, but both refrigerating equipments 4 and 5 may share one outdoor unit, and the air conditioning equipment 1 may be shared. The outdoor unit may be shared by ~ 3 and the refrigerating equipment 4 and 5.

Further, the store is equipped with a ventilation facility 6 for ventilating the air in the space S and a dehumidifying facility 7 for lowering the humidity of the air. The ventilation equipment 6 is composed of ventilation ducts provided with ventilation fans in each of the air supply passage and the exhaust passage, takes in outside air and sends it to the space S from the air outlet 6a, and also enters the store from the suction port 6b facing the space S. It sucks in air and releases it into the atmosphere. The dehumidifying facility 7 is composed of a desiccant air conditioner that takes in outside air and performs dehumidifying treatment, and supplies the dry air after the dehumidifying treatment to the space S. The air outlet 7a supplies the dry air to the space S and the suction port. The air inside the store is sucked in from 7b and released into the atmosphere.

Since the regions A1 to A3 of the space S are not separated by a wall or the like, it is not always necessary to arrange the outlets 6a and 7a and the suction ports 6b and 7b in all the regions A1 to A3. In this embodiment, the air outlet 6a and the suction port 6b of the ventilation equipment 6 are arranged on the ceiling surface between the second region A2 and the third region A3, and the ceiling surface between the first region A1 and the second region A2 is arranged. The outlet 7a and the suction port 7b of the dehumidifying equipment 7 were arranged in the room. By arranging the outlet 7a of the dehumidifying equipment 7 around the showcases 4a and 5a, the humidity around the outlets 7a can be lowered and frost formation in the showcases 4a and 5a can be suppressed (however, the showcases 4a and 5a). Care should be taken not to adversely affect the air curtain). The dehumidifying equipment 7 may directly dehumidify the air inside the store, but if a desiccant air conditioner that supplies the dehumidified outside air as in this embodiment is adopted, the dehumidifying equipment 7 has a ventilation function. , Can contribute to the achievement of the legal ventilation volume together with the ventilation equipment 6.

As shown in FIG. 2, the store equipment control system (hereinafter, simply referred to as a control system) 10 according to the present embodiment includes an air conditioning control means 11 for controlling the operating state of each air conditioning equipment 1 to 3 and an air conditioning control means 11. The set value indicating means 12 for instructing the set temperature of each of the air conditioning equipments 1 to 3, the data accumulating means 14 for periodically accumulating various measurement data described later in the database 13, and the necessary measurement data from the database 13. It is composed of a data adding means 15 that extracts and outputs the data to the set value indicating means 12, a temperature zone designating means 16 that outputs a comfortable temperature zone to the set value indicating means 12, which will be described later.

The data storage means 14 periodically outputs the detection value of the in-store temperature sensor 21 that detects the air temperature in the space S and the detection value of the in-store humidity sensor 22 that detects the humidity in the space S to the database 13. At least one in-store temperature sensor 21 and in-store humidity sensor 22 are provided in each of the areas A1 to A3, and the detected values of the sensors 21 and 22 are stored in the database 13 in association with the date and time information. Each sensor 21 and 22 is located closer to the user than the ceiling of the space S, specifically, showcases 4a and 5a, in order to accurately know the temperature and humidity around the user (customer, clerk, etc.). It is arranged on the ceiling of the building or just above the display shelf 9.

Further, the data storage means 14 has a detection value of the outside air temperature sensor 23 for detecting the temperature of the outside air, a detection value of the outside air humidity sensor 24 for detecting the humidity of the outside air, and a carbon dioxide sensor 26 for detecting the carbon dioxide concentration in the space S. The detected value of is periodically measured and stored in the database 13 in association with the date and time information. The ventilation equipment 6 is independently controlled based on the detection value of the carbon dioxide sensor 26, and starts operation when the carbon dioxide concentration reaches 1000 ppm or more. The temperature sensors 21 and 23 and the humidity sensors 22 and 24 may be integrated as a temperature and humidity sensor, or may be separate bodies. The detected values of the in-store temperature sensor 21 and the in-store humidity sensor 22 are also used for controlling the energization rate of the dew condensation prevention heater provided in each of the showcases 4a and 5a. Hereinafter, the temperature and humidity of the space S, the outside air temperature and the humidity, and the carbon dioxide concentration of the space S are collectively referred to as an environmental measurement value.

Further, the data storage means 14 periodically measures the operating state of each equipment 1 to 7 (air conditioning equipment 1 to 3, refrigerating equipment 4.5, ventilation equipment 6 and dehumidifying equipment 7), and outputs the data to the database 13. In this operating state, the power consumption of each equipment 1 to 7, the set temperature of each air conditioning equipment 1 to 3, the detection value of the temperature sensor built in each indoor unit 1a to 3a, and each outdoor unit 1b to 3b The operation operation rate of the dehumidifying equipment 7 and the detected value of the air volume of the dehumidifying equipment 7 are included. In the database 13, the operating states of each of the facilities 1 to 7 are stored together with the above-mentioned environmental measurement values in association with the date and time information. In this embodiment, the cycle in which the data storage means 14 operates is set to 30 minutes, and the measurement data of 00 minutes and 30 minutes are stored in the database 13 (data measurement is performed every 1 minute). Instead of the detected value of the carbon dioxide sensor 26 as the control parameter of the ventilation equipment 6, the detected value of the air volume of the equipment 6 may be stored in the database 13. Further, instead of the detected value of the air volume of the dehumidifying equipment 7, the detected value of the humidity of the space S as a control parameter of the equipment 7 may be stored in the database 13.

When the accumulation of the measurement data every 30 minutes by the data accumulating means 14 is completed, the data adding means 15 starts the operation. In the data addition means 15, in addition to the latest measurement data (current measurement data) just accumulated in the database 13, the error from the current environmental measurement value from the past measurement data is within a predetermined allowable range. A certain measurement data is extracted as environment approximation data and output to the set value indicating means 12. The search for environmental approximation data includes measurement data (most recent data) from the current day to m days before (m: natural number), measurement data (n: natural number) for n days (n: natural number) on the same day of the previous year and before and after, and the same day of the previous year. The measurement data for n days before and after that (data from the year before last) is targeted, and the range is gradually expanded to a maximum of 5 times. Table 1 shows the range of the date and time of each time in this embodiment.

Each numerical value in Table 1 indicates an error from the date (month / day) or time when the search is performed. For example, the first search at 15:00 on August 15, 2018 is from August 10, 2018 to August 15, 2018 (latest data), August 9, 2017 to August 21, 2017 (previous year data), and The measurement data from August 9th to 21st, 2016 (data from the year before last) from 14:00 to 16:00 (that is, from 14:00 to 14:30 only on August 15, 2018) is targeted. Become. The second search was from August 7th to 15th, 2018 (latest data), August 6th to 24th, 2017 (previous year data) and August 6th to 24th, 2016 (data from the year before last). ) From 13:00 to 17:00 (only on the day from 13:00 to 14:30).

Next, Table 2 shows the allowable range of error from the current environmental measurement value in this embodiment. For example, when the environmental measurement values at the time of searching the environmental approximation data are [25 ° C, 50%, 23 ° C, 60%, 800 ppm] in order from the top of Table 2, the first search is [24 to 26]. Measurement data including environmental measurement values of [° C, 40 to 60%, 22 to 24 ° C, 50 to 70%, 720 to 880 ppm] are extracted as environmental approximation data, and in the second search, [23 to 27 ° C, 30 to Measurement data including environmental measurement values of 70%, 21 to 25 ° C., 40 to 80%, 640 to 960 ppm] are extracted as environmental approximation data.

If 20 or more environmental approximation data are extracted at the end of the second search, it is considered that the set value indicating means 12 has enough data to find the optimum solution, and the third time is the last. End the search. This makes it possible to improve the processing speed. On the other hand, if the number of environment approximation data is less than 20 at the end of the second search, the search is continued up to 5 times while expanding the search range until the number of environment approximation data is 20 or more. It goes without saying that the values in each of the above tables are just examples, and the values can be changed according to various circumstances.

The temperature zone designating means 16 operates at the same time as the data adding means 15 to calculate a temperature zone that can maintain the comfort of the user in the space S, that is, a comfortable temperature zone for each of the regions A1 to A3, and set this as a set value. Output to the instruction means 12. In this embodiment, PMV (Predicted Mean Vote: Predicted Mean Vote) of the international standard (ISO7730), which is one of the indicators of comfort, is used when calculating the comfortable temperature zone. PMV is a value obtained by quantifying the four elements on the environment side (temperature, humidity, wind speed, average radiation temperature) and the two elements on the human body side (metabolism amount, clothing amount), and ranges from -3 to +3. Take the value of. PMV = 0 means a thermally neutral state, the closer it is to -3, the colder it is, and the closer it is to +3, the hotter it is.

The temperature zone designating means 16 outputs the upper limit temperature and the lower limit temperature by using 5 elements excluding the air temperature among the above 6 elements and the upper limit value and the lower limit value of PMV that can maintain the comfort of the user as input factors. The comfortable temperature zone is between the upper limit temperature and the lower limit temperature. Of the input factors, the humidity of each region A1 to A3 is detected by the in-store humidity sensor 22. The wind speed can be detected by a dedicated sensor, but in this embodiment, a constant stored in the storage unit 28 is used. Since the wind speed is almost unrelated to the season, a constant value is used regardless of the season. The average radiation temperature can be calculated from the detection values of the in-store temperature sensor 21 and the outside air temperature sensor 23, and is generally higher in summer and lower in winter. As the amount of metabolism, a constant stored in the storage unit 28 is used. Since the amount of metabolism is almost unrelated to the season, a constant value is used regardless of the season. Since the amount of clothing has a strong correlation with the outside air temperature (the amount of clothing increases as the outside air temperature decreases), a correspondence table between the outside air temperature and the amount of clothing is prepared in advance and stored in the storage unit 28. That is, the amount of clothing corresponding to the detection value of the outside air temperature sensor 23 is extracted from the storage unit 28.

The upper limit value and the lower limit value of PMV are set monthly and for each of the areas A1 to A3, and are stored as a table in the storage unit 28. In the monthly comparison, the upper and lower limits of PMV are set higher in the summer than in the winter. Further, in the comparison for each of the areas A1 to A3, the upper limit value and the lower limit value of the PMV are set lower in the areas A1 and A2 provided with the refrigerating facilities 4 and 5 than in the areas A3 not provided with the refrigerating facilities A1 and A3. This is because in the areas A1 and A2 provided with the refrigerating equipment 4 and 5, it is possible to reduce the load of the refrigerating equipment 4 and 5 by lowering the temperature within a range that does not impair the comfort of the user, and as a result, the load of the refrigerating equipment 4 and 5 can be reduced. This is because the total power consumption of the air-conditioning equipment 1 and 2 and the refrigerating equipment 4 and 5 often decreases. The detected values of the in-store temperature sensor 21, the in-store humidity sensor 22, and the outside air temperature sensor 23 used in the temperature zone designating means 16 may be directly received from the sensors 21 to 23, and are stored in the database 13 by the data storage means 14. It may be extracted from the current (latest) measurement data.

The present invention can be applied not only to the sales floor (sales floor area) of products in the store, but also to the windbreak room (windbreak room) provided at the entrance / exit of the store. In this case, it is desirable to set the upper and lower limits of the PMV in the windbreak area to be higher in the summer and lower in the winter than in the sales floor area. This is because if the temperature difference between the windbreak room and the outside air becomes too large, shoppers who come to or leave the store may receive a heat shock.

When the measurement data is output from the data assigning means 15 to the set value indicating means 12, and the comfortable temperature zone is output from the temperature zone specifying means 16 to the set value indicating means 12, the set value indicating means 12 starts operation. The set value indicating means 12 predicts the tendency of the subsequent temperature change in each region A1 to A3 based on the current and past measurement data by using the optimization software, and based on this prediction, each region A1 to A1 to Within the range where the temperature of A3 is within the comfortable temperature range, the total power consumption of the air conditioning equipment 1 to 3, the refrigerating equipment 4 and 5, the ventilation equipment 6 and the dehumidifying equipment 7 is minimized. The optimum set temperature is derived and sent to the air conditioning control means 11.

The air conditioning control means 11 controls specific operating states of each air conditioning equipment 1 to 3, that is, an operation mode (cooling or heating), start / stop (on or off), and air volume (three stages of weak, medium, and strong). .. Since this control method differs depending on the season, it will be described in order below.

[Summer (May-September)]
The air-conditioning control means 11 sets the operation mode of each air-conditioning equipment 1 to 3 to cooling, and also sets the set temperature of each air-conditioning equipment 1 to 3 instructed by the set value indicating means 12 and the detection value of each in-store temperature sensor 21. Based on the above, the start and stop of each air conditioning equipment 1 to 3 is decided. Specifically, the set temperature and the detected value are compared for each region A1 to A3, and in the regions A1 to A3 where the detected value is lower than the set temperature by a predetermined value (for example, 1 ° C.) or more, the air conditioning equipment 1 in the regions A1 to A3. ~ 3 is turned off, and the other areas A1 to A3 are turned on. The air volume of each indoor unit 1a to 3a in the on state is determined based on the operating operating rate of the corresponding outdoor units 1b to 3b. In this embodiment, the air volume when the ratio is less than 30% is set to "weak", the air volume when the ratio is 30% or more and less than 70% is set to "medium", and the air volume when the ratio is 70% or more is set to "strong". The higher the operating rate, the higher the energy efficiency of the air conditioning equipment 1 to 3 by increasing the air volume.

[Winter (November-March)]
The operation mode of each air conditioner 1 to 3 is set to heating. For starting and stopping, the set temperature of each air conditioner 1 to 3 instructed by the set value indicating means 12 is compared with the detected value of each in-store temperature sensor 21 for each area A1 to A3, and the detected value is the set temperature. In the regions A1 to A3 higher than a predetermined value (for example, 1 ° C.), the air conditioning equipment 1 to 3 in the regions A1 to A3 are turned off, and in the other regions A1 to A3, this is turned on. The air volume control method is the same as in summer.

[Interim period (April / October)]
The air-conditioning control means 11 determines the operation mode of each air-conditioning equipment 1 to 3 based on the set temperature of each air-conditioning equipment 1 to 3 instructed by the set value indicating means 12 and the detection value of each in-store temperature sensor 21. Decide on a stop. Specifically, the set temperature and the detected value are compared for each region A1 to A3, and in the regions A1 to A3 in which the detected value is higher than the set temperature by a predetermined value (for example, 1 ° C.) or more, the air conditioning equipment 1 in the regions A1 to A3. 3 to 3 are driven in the cooling mode, and in the regions A1 to A3 where the detected value is lower than the set temperature by a predetermined value (for example, 1 ° C.) or more, the air conditioning equipment 1 to 3 in the regions A1 to A3 are driven in the heating mode, and other than that. In the regions A1 to A3 of, this is turned off. The air volume control method is the same as in summer.

The above control method by the air conditioning control means 11 is only an example, and each air conditioning equipment 1 to 3 can be controlled by any other method, for example, a comfortable temperature zone output by the temperature zone designating means 16. , May be used for control of each air conditioning equipment 1 to 3. Further, instead of the air conditioning control means 11 determining the operation state (operation mode, start / stop, air volume), the set value indicating means 12 derives the optimum operation state in which the power consumption is minimized, and uses this as the air conditioning control means. 11 may be instructed.

The control procedure by the control system 10 is shown in the flowchart of FIG. Here, a first timer that measures the first elapsed time Ta and a second timer that measures the second elapsed time Tb are used. When the timekeeping by both timers is started (step S1), the data storage means 14 first stores the current measurement data in the database 13 (step S2). Next, the data adding means 15 extracts the current and past measurement data from the database 13 and outputs the current and past measurement data to the set value indicating means 12 (step S3). At the same time, the temperature zone designating means 16 calculates the comfortable temperature zones of the regions A1 to A3 and outputs them to the set value indicating means 12 (step S4). Next, the set value indicating means 12 derives an optimum solution of the set temperature of each of the air conditioning equipments 1 to 3 and sends it to the air conditioning control means 11 (step S5). Next, the air conditioning control means 11 controls the operating state of each of the air conditioning equipments 1 to 3 based on the set temperature or the like instructed by the set value indicating means 12 (step S6).

When the processing up to step S6 is completed, the first elapsed time Ta reaches the first cycle T1 (30 minutes in this embodiment), or the second elapsed time Tb is the second cycle T2 (10 minutes in this embodiment). (Steps S7 to S8). Since the first cycle T1 is longer than the second cycle T2, after reaching step S6 via step S1, the second elapsed time Tb is before the first elapsed time Ta reaches the first cycle T1. Reaches the second cycle T2 (YES in step S8). After that, the second timer is reset and the time counting is started again (step S9), and the process returns to step S6.

When returning to step S6 from step S6 through step S9, the set temperature is the same as that of the previous step S6 because it does not go through step S5 (deriving the set temperature of each air conditioning equipment 1 to 3). It is the same. On the other hand, the detected value of each in-store temperature sensor 21 and the operating operating rate of the outdoor units 1b to 3b often fluctuate from the time of the previous processing in step S6. Therefore, the air-conditioning control means 11 refers to the set temperature of each air-conditioning equipment 1 to 3 previously instructed by the set value indicating means 12, the latest in-store temperature, and the operation operating rate, and operates the air-conditioning equipments 1 to 3. Review the condition. In this embodiment, since the second cycle T2 is set to 10 minutes, the review of the operating state is performed 10 minutes and 20 minutes after step S1 (timekeeping start). In other words, for 10 minutes, the operating state of each air conditioner 1 to 3 is maintained unchanged. When 30 minutes (first cycle T1) have elapsed from the start of time counting in step S1, YES is set in step S7 and the process returns to step S1, the first timer and the second timer are reset, and time counting is started again. Then, the processes of steps S2 to S6 are restarted.

As described above, in the control system 10 according to the present embodiment, the air conditioning control means 11 for controlling the operating state (start / stop, air volume, etc.) of each air conditioning equipment 1 to 3 and each air conditioning equipment for the air conditioning control means 11. Periodically measure the operating state of the set value indicating means 12 for instructing the set temperature of 1 to 3 and each of the facilities 1 to 7 (air conditioning equipment 1 to 3, refrigerating equipment 4 and 5, ventilation equipment 6 and dehumidifying equipment 7). The data storage means 14 to be stored in the database 13, the data addition means 15 to extract necessary measurement data from the database 13 and output it to the set value indicating means 12, and the comfort of the user in the space S can be maintained. The temperature zone designating means 16 for outputting a comfortable temperature zone is provided. Here, in the database 13, at least date and time information, measurement data in which the set temperatures of the air conditioning equipments 1 to 3 at the date and time are associated with the power consumption of the equipments 1 to 7 at the date and time are stored. Therefore, the set value indicating means 12 has the minimum total power consumption of each of the facilities 1 to 7 within the range where the air temperature in the space S falls within the comfortable temperature zone based on the past measurement data output from the data adding means 15. Therefore, the optimum solution of the set temperature of each air conditioning equipment 1 to 3 can be derived. That is, according to this embodiment, it is possible to realize energy saving by minimizing the power consumption of each of the facilities 1 to 7 within a range that does not impair the comfort of the user in the space S. Further, according to this embodiment, the degree of the effect of lowering the set temperature of the air conditioning equipment 1 to 3 (the effect of reducing the load of the refrigerating equipment 4 and 5) is grasped based on the past measurement data regarding the power consumption. Therefore, the optimum solution that minimizes the total power consumption can be derived regardless of the arrangement relationship between the air conditioning equipments 1 to 3 and the refrigerating equipments 4 and 5 in the space S.

The control system 10 according to the present embodiment includes an initial mode mainly executed at the initial stage of operation, in addition to the formal mode described so far. In order to execute the formal mode, at least the measurement data of the previous year needs to be stored in the database 13, but the initial mode can be executed without requiring the measurement data. That is, in the first year of operation of the control system 10, the measurement data is accumulated in the database 13 while executing the initial mode, and after the second year, the formal mode can be executed using the accumulated measurement data. Of course, the accumulation of measurement data will continue even after the second year.

In FIG. 4, in the initial mode, the set value indicating means 12 and the data giving means 15 are not used, and the temperature zone specifying means 16 instructs the air conditioning control means 11 to set the temperature of each of the air conditioning equipments 1 to 3. Different from the official mode. The temperature zone designating means 16 indicates the set temperature within the range of the calculated comfortable temperature zone, but by periodically changing the set temperature within the same range, each air conditioning equipment 1 to 3 can be operated at various set temperatures. It is possible to collect power consumption and environmental measurement values during actual operation as measurement data. Therefore, it is desirable to positively adopt not only the center value of the comfortable temperature zone but also the upper limit value and the lower limit value of the comfortable temperature zone as the set temperature. If the measurement data when the air conditioning equipments 1 to 3 are actually operated at these set temperatures are stored in the database 13, the set value indicating means 12 is based on the measurement data when the formal mode is entered. , It is possible to predict the limit value (upper limit value in summer and lower limit value in winter) of the set temperature for maintaining the space S in the comfortable temperature zone. By setting the set temperature to or near the limit value, the total power consumption of each facility 1 to 7 can be further reduced.

FIG. 5 shows another embodiment in which a part of the control system 10 according to the above embodiment is modified. There, in addition to the air conditioning equipment 1 to 3, the ventilation equipment 6 and the dehumidification equipment 7 were controlled by the control system 10. That is, the control system 10 controls the ventilation control means 17 for controlling the operation state of the ventilation equipment 6 and the operation state of the dehumidifying equipment 7 in addition to the air conditioning control means 11 for controlling the operation state of each of the air conditioning equipments 1 to 3. A dehumidifying control means 18 is provided. The set value indicating means 12 predicts the tendency of the subsequent changes in the environment (temperature, humidity, carbon dioxide concentration) of each region A1 to A3 based on the measurement data output from the data adding means 15, and based on this prediction. In addition, the total power consumption of the air conditioning equipment 1 to 3, the refrigerating equipment 4 and 5, the ventilation equipment 6 and the dehumidifying equipment 7 is minimized within the range where the air temperature in each area A1 to A3 is within the comfortable temperature range. The optimum set values for each of the equipments 1 to 7 are derived, and these are sent to the control means 11, 17, and 18. The set value (control parameter) here is a set temperature for the air conditioning equipment 1 to 3, a set carbon dioxide concentration for the ventilation equipment 6, and a set humidity for the dehumidifying equipment 7. Although not shown in FIG. 5, the air conditioning control means 11 detects the detection value of the in-store temperature sensor 21, the ventilation control means 17 detects the detection value of the carbon dioxide sensor 26, and the dehumidification control means 18 detects the detection value of the in-store humidity sensor 22. Each value is monitored. Others are the same as in the above-described embodiment, and the description thereof will be omitted.

In the above embodiment, the data adding means 15 searches the environment approximation data from the database 13 and outputs the data to the set value indicating means 12, but the present invention is not limited to this. For example, measurement data from the current day to m days ago (most recent data), measurement data for n days before and after the same day of the previous year (previous year data), and measurement data for n days before and after the same day two years ago (data two years ago). All may be output to the set value indicating means 12. Alternatively, the measurement data (most approximate data) having the minimum error from the current environment measurement value is searched, and the measurement data for n days before and after the measurement date of the most approximate data is set value indicating means together with the most approximate data. It may be output to 12. In addition to the ventilation duct, the ventilation equipment 6 may be, for example, a total heat exchanger that exchanges and recovers the total heat (sensible heat and latent heat) contained in the return air. The control system 10 according to the present invention is used in a store provided with an outside air treatment type air conditioner (including an indirect vaporization cooling type) that cools the outside air and supplies the air to the inside of the store, mainly for the purpose of sensible heat treatment. Can also be applied, and the power consumption of store equipment including this air conditioner can be minimized.

1 1st air conditioning equipment 2 2nd air conditioning equipment 3 3rd air conditioning equipment 4 1st refrigerating equipment 5 2nd refrigerating equipment 6 ventilation equipment 7 dehumidifying equipment 10 store equipment control system 11 air conditioning control means 12 set value indicating means 13 Database 14 Data storage means 15 Data acquisition means 16 Temperature zone designation means 17 Ventilation control means 18 Dehumidification control means A1 1st area A2 2nd area A3 3rd area S space

Claims (11)

It is applied to stores equipped with air conditioning equipment (1 to 3) that harmonizes the air in the space (S) inside the store and refrigeration equipment (4.5) that is installed in the space (S) and displays products in a cooled state. Store equipment control system
The air conditioning control means (11) that controls the operating state of the air conditioning equipment (1 to 3) and
The set value indicating means (12) for instructing the air conditioning control means (11) to set the temperature of the air conditioning equipment (1 to 3), and
A data storage means (14) that periodically measures the operating conditions of the air conditioning equipment (1 to 3) and the refrigerating equipment (4.5) and stores them in the database (13).
Data giving means (15) that extracts necessary measurement data from the database (13) and outputs it to the set value indicating means (12), and
The set value indicating means (12) is provided with a temperature zone specifying means (16) that outputs a comfortable temperature zone that can maintain the comfort of the user in the space (S).
The database (13) contains at least date and time information, the set temperature of the air conditioning equipment (1 to 3) at the date and time, and the power consumption of the air conditioning equipment (1 to 3) and the refrigerating equipment (4.5) at the date and time . Measurement data associated with environmental measurement values including at least the outside air temperature at that date and time are accumulated.
The data addition means (15) extracts the measurement data whose error from the current environment measurement value is within a predetermined allowable range from the measurement data stored in the database (13) as environment approximation data. Output to the set value indicating means (12) and output to the set value indicating means (12).
The set value indicating means (12) and the air-conditioning equipment (1 to 3) within a range in which the temperature in the space (S) falls within the comfortable temperature range based on the environment approximation data output from the data adding means (15). The set temperature of the air conditioning equipment (1 to 3) is derived so that the total power consumption of the refrigerating equipment (4.5) is minimized.
The data addition means (15) is
The measurement data from the present to several days ago and the measurement data of the same season before the previous year are set as the first search target of the environment approximation data, and the range of the date and time of the measurement data to be searched and the error of the environment measurement value. While expanding at least one of the allowable ranges in stages, the environment approximation data is searched for a specified number of times.
A store equipment control system characterized in that if the number of environmental approximation data reaches a specified value before the specified number of searches is performed, the search is terminated before the specified number of searches is reached . The store equipment control system according to claim 1 , wherein the environmental measurement values include the outside air temperature and the outside air humidity, the air temperature and the humidity of the space (S), and the carbon dioxide concentration of the space (S) . In addition to the formal mode in which each means (11/12/14/15/16) is used, the set value indicating means (12) and the data giving means (11/12/14/15/16) among the means (11/12/14/15/16) are used. It has an initial mode that does not use 15),
The temperature zone designating means (16) in the initial mode instructs the air conditioning control means (11) to set the temperature of the air conditioning equipment (1 to 3) within the comfortable temperature range.
In the initial mode, while the operating state of the air conditioning equipment (1 to 3) is controlled by the air conditioning control means (11), the data storage means (14) is at least the air conditioning equipment (1 to 3) and the refrigerating equipment (4.5). The store equipment control system according to claim 1 or 2, wherein the operating state is periodically measured and stored in the database (13) . A claim that the temperature zone designating means (16) in the initial mode periodically instructs the air conditioning control means (11) the upper limit value and the lower limit value of the comfortable temperature zone as the set temperature of the air conditioning equipment (1 to 3). The store equipment control system according to 3. The second cycle (T2) in which the air conditioning control means (11) reviews the operating state of the air conditioning equipment (1 to 3) is set shorter than the first cycle (T1) in which the set value indicating means (12) instructs the set temperature. The store equipment control system according to any one of claims 1 to 4 . The in-store temperature sensor (21) that detects the air temperature in the space (S) is arranged closer to the user in the space (S) than the ceiling of the space (S).
The air conditioning control means (11) controls the operating state of the air conditioning equipment (1 to 3) based on the detected value of the in-store temperature sensor (21) and the set temperature instructed by the set value indicating means (12). The store equipment control system according to any one of claims 1 to 5. One space (S) is divided into a plurality of areas (A1 to A3), and the space (S) is divided into a plurality of areas (A1 to A3).
Air conditioning equipment (1 to 3) is installed corresponding to each area (A1 to A3), and refrigeration equipment (4.5) is installed only in some areas (A1 and A2).
The set value indicating means (12) instructs the air conditioning control means (11) of the set temperature of the air conditioning equipment (1 to 3) for each area (A1 to A3).
The temperature zone designating means (16) outputs a comfortable temperature zone for each region (A1 to A3), and the region (A1 and A2) provided with the refrigerating equipment (4.5) and the region (A3) not provided with the refrigerating equipment (4.5). The store equipment control system according to any one of claims 1 to 6, which outputs different comfortable temperature zones . It is equipped with a ventilation facility (6) for ventilating the air in the space (S).
The data storage means (14) periodically measures the operating state of the ventilation equipment (6) in addition to the air conditioning equipment (1 to 3) and the refrigerating equipment (4.5) and stores them in the database (13). ,
The database (13) contains at least date and time information, the set temperature of the air conditioning equipment (1 to 3) at the date and time, the air conditioning equipment (1 to 3), the refrigerating equipment (4.5), and the ventilation equipment (6) at the date and time. ) Measurement data associated with power consumption is accumulated,
The set value indicating means (12) of the air-conditioning equipment (1 to 3) so that the total power consumption of the air-conditioning equipment (1 to 3), the refrigerating equipment (4.5), and the ventilation equipment (6) is minimized. The store equipment control system according to any one of claims 1 to 7 for deriving a set temperature . It is equipped with a ventilation control means (17) that controls the operating state of the ventilation equipment (6).
The set value indicating means (12) is used for the air conditioning equipment (1 to 3) so that the total power consumption of the air conditioning equipment (1 to 3), the refrigerating equipment (4.5), and the ventilation equipment (6) is minimized. The store equipment control system according to claim 8 , wherein the set temperature and the operation set value of the ventilation equipment (6) are derived and instructed to the air conditioning control means (11) and the ventilation control means (17) . It is equipped with a dehumidifying facility (7) to reduce the humidity of the air in the space (S).
The dehumidifying equipment (7) is an outside air treatment type that takes in outside air, performs dehumidification treatment, and supplies dry air after dehumidification treatment to the space (S).
The data storage means (14) periodically measures the operating state of the dehumidifying equipment (7) in addition to the air conditioning equipment (1 to 3), the refrigerating equipment (4.5), and the ventilation equipment (6), and the database (13). ), And
The database (13) contains at least date and time information, the set temperature of the air conditioning equipment (1 to 3) at the date and time, the air conditioning equipment (1 to 3), the refrigerating equipment (4.5), and the ventilation equipment (6) at the date and time. ) And the measurement data associated with the power consumption of the dehumidifying equipment (7) are accumulated.
The set value indicating means (12) is an air-conditioning equipment so that the total power consumption of the air-conditioning equipment (1 to 3), the refrigerating equipment (4.5), the ventilation equipment (6), and the dehumidifying equipment (7) is minimized. The store equipment control system according to claim 8 or 9 , wherein the set temperature of (1 to 3) is derived . It is provided with a ventilation control means (17) for controlling the operating state of the ventilation equipment (6) and a dehumidifying control means (18) for controlling the operating state of the dehumidifying equipment (7).
The set value indicating means (12) is an air-conditioning equipment so that the total power consumption of the air-conditioning equipment (1 to 3), the refrigerating equipment (4.5), the ventilation equipment (6), and the dehumidifying equipment (7) is minimized. The set temperature of (1 to 3) and the operation set value of the ventilation equipment (6) and the dehumidification equipment (7) are derived, and the air conditioning control means (11), the ventilation control means (17) and the dehumidification control means (18) are used. The store equipment control system according to claim 10, which is instructed .

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