JP6822888B2 - Air conditioning control device, air conditioning control method and air conditioning control program - Google Patents

Description

Embodiments of the present invention relate to air conditioning control devices, air conditioning control methods and air conditioning control programs.

Conventionally, when using an air conditioner in an office or a residence, if the user sets the temperature or the like to an arbitrary value, energy saving may not be achieved. On the other hand, if energy saving is prioritized and the temperature, humidity, etc. are set, It may be an unpleasant situation for the user to be hot or cold.

In addition, when setting the temperature of the air conditioner, it is possible to specify the allowable range of the user based on the change history of the set value and determine the set value based on this, but the space to be air-conditioned and There is a problem that the set value does not always lead to energy saving unless the influence of the external environment is taken into consideration.

Japanese Unexamined Patent Publication No. 2010-107073 Japanese Unexamined Patent Publication No. 2014-085034

The problem to be solved by the present invention is to provide an air conditioning control device, an air conditioning control method, and an air conditioning control program in which the user can tolerate the set value and achieve both energy saving in consideration of the influence of the environment on the set value. Is.

The air conditioning control device as one aspect of the present invention has a history information acquisition unit, a division unit, an allowable range calculation unit, and a control value determination unit. The history information acquisition unit acquires the set value history information regarding the set value set for the air conditioner and the environment value history information regarding the environment value. The division unit divides the set value history information based on the attribute obtained from the environment value history information. The permissible range calculation unit obtains the permissible range of the set value based on the divided set value history information. The control value determining unit determines the control value to be output to the air conditioner based on the permissible range, the attribute, and the set value.

The block diagram which shows the schematic structure of the air conditioning control system in 1st Embodiment. The figure which shows an example of the set value history information and the environment value history information stored in the history information storage part in 1st Embodiment. The figure which shows an example of the setting information stored in the setting information storage part in 1st Embodiment. The figure which shows an example of the relationship between the search execution period and the search non-execution period in the operation period of the air conditioning control device in 1st Embodiment. An example of the time when the allowable range calculation unit calculates the allowable range and the time when the control value determination unit calculates the control value and outputs the control value instructing the change of the set temperature to the air conditioner in the first embodiment is shown. Figure. The figure which shows an example of the calculation method of the set temperature duration and attribute executed in the division part in 1st Embodiment. The figure which shows an example of the calculation method which divides the data of a set temperature duration by OT which is the outside air temperature of time ta in 1st Embodiment. The figure which shows an example of the calculation method of the feature amount in 1st Embodiment. The figure which shows an example of the plot figure of the scale parameter λ and the shape parameter p which are feature quantities. The figure explaining the calculation method of the feature amount based on the set temperature duration and the identification boundary of the feature amount when the score is used as a usage attribute. The figure explaining the calculation method of the feature amount based on the set temperature duration and the identification boundary of the feature amount when the score is used as a usage attribute. The figure which shows an example of the set temperature table which uses "the outside air temperature OT of the time ta of the day" as a usage attribute, and the divided value is Tb ° C. The figure which shows an example of the set temperature table when the usage attribute is a score. The figure explaining the calculation of the optimum set temperature in 1st Embodiment. The figure which shows an example of the control content table which sets the control content of the control value determination part in 1st Embodiment. The figure of the flowchart which shows an example of the arithmetic processing for air-conditioning control in 1st Embodiment. The figure of the flowchart which shows an example of the arithmetic processing for air-conditioning control in 1st Embodiment. The figure of the flowchart which shows an example of the arithmetic processing for air-conditioning control in 1st Embodiment. The figure of the flowchart which shows an example of the arithmetic processing for air-conditioning control in 1st Embodiment. The figure which shows the example of the detection result of the user in the detection part in 2nd Embodiment. The figure which shows an example of the detection result of the user in 2nd Embodiment. The figure which shows another example of the control content table in 2nd Embodiment. The figure which shows the arrangement example and the configuration example of the air-conditioning control system which concerns on embodiment. The block diagram which shows the hardware configuration example which realized the air-conditioning control device in this embodiment.

Hereinafter, the air conditioning control device, the air conditioning control method, and the air conditioning control program of the embodiment will be described with reference to the drawings.

(First Embodiment)
FIG. 1 is a block diagram showing a schematic configuration of an air conditioning control system 1 according to the present embodiment.
As shown in FIG. 1, the air conditioning control system 1 includes an air conditioning control device 100, an air conditioner 200, an input / display device 300, and an environment value acquisition device 400.

Here, an example of the environment in which the air conditioning control system 1 is installed will be described.
The air conditioner 200 and the input / display device 300 are installed in a space such as an office or a residence. The environment value acquisition device 400 is installed in a space such as an office or a residence, or outside a space such as an office or a residence. The air conditioning control device 100 is installed in a management room or the like outside the space such as an office or a residence.
The air conditioner 200 and the input / display device 300 are connected via, for example, a wired cable or a wireless network. The air conditioning control device 100 and the air conditioner 200 are connected via a wireless network or a wired network. The air conditioning control device 100 and the environment value acquisition device 400 are connected via a wireless network or a wired network.

The air conditioning control device 100 includes a history information storage unit 101, a setting information storage unit 102, an allowable range storage unit 103, a history information acquisition unit 111, an instruction unit 112, a division unit 113, an allowable range calculation unit 114, and a control value determination unit 115. And a time measuring unit 116 is provided. Each of the above-mentioned functions of the air conditioning control device 100 can be realized by a hardware function. Note that some or all of the above-mentioned functions may be realized by software functions. Further, each function of the above-described device may be realized by collectively realizing a plurality of functions as one functional unit, or may be realized by dividing one function into a plurality of functions.
The air conditioner 200 includes a detection unit 201, a control unit 202, and a communication unit 203.
The input / display device 300 includes a display unit 301 and an input unit 302.

The air conditioning control device 100 determines the temperature and humidity for the user based on the history of the set temperature set by the user output by the air conditioner 200 and the history of the environmental value output by the environment value acquisition device 400. A control value is generated by dividing whether or not it is within the allowable range. By outputting the generated control value to the air conditioner 200, the air conditioning control device 100 controls the air conditioner 200 so that the set value is within the permissible range and energy saving is compatible. The method of generating the control value and the like will be described later. The environmental value is, for example, the room temperature and indoor temperature of the space targeted by the air conditioner 200, or the outside air temperature and outside air temperature of the building in which the air conditioner 200 is set. Note that FIG. 1 shows a case where the air conditioning control device 100 outputs a control value to one air conditioner 200, but the air conditioning control device 100 outputs a control value to a plurality of air conditioners 200. It may be output.

The air conditioner 200 is controlled by a control value output by the air conditioning control device 100. The air conditioner 200 acquires a control value output by the air conditioning control device 100, and sets a set value based on the acquired control value. Here, the set value is, for example, a set temperature, a set humidity, or a set temperature and a set humidity. In this embodiment, the following description will be given by taking the case where the set value is the set temperature as an example. The air conditioner 200 acquires the control value from the air conditioning control device 100 and sets the set temperature. Further, when the user operates the input / display device 300, the air conditioner 200 can change the set temperature according to the operation of the user. The air conditioner 200 outputs the operation mode (stop, heating, cooling) and the set temperature to the air conditioning control device 100. Further, the air conditioner 200 detects information about a user in the environment in which the air conditioner 200 is installed, and outputs information about the detected user to the air conditioning control device 100. Here, the information about the user is, for example, information indicating the number of people and whether or not the user exists.

The air conditioner 200 may target various air conditioners and other air conditioners. For example, a centralized control type using a chiller (cooling water circulation device), a packaged air conditioner, or the like, or a combination of a boiler and a heater that circulates hot water generated by the boiler may be used. Although the air conditioner 200 is supposed to perform air conditioning on the installed space, the installed space and the air-conditioned space may be different. For example, the air conditioner 200 may be placed in a machine room and send out hot air and cold air through a duct or the like to control air conditioning in the target space.

The input / display device 300 is, for example, a remote controller, a control panel mounted on a wall, or the like. The input / display device 300 accepts the user's operation and outputs the set temperature, which is the result of the accepted operation, to the air conditioner 200. The input / display device 300 accepts the user's operation and displays the set temperature which is the result of the accepted operation.

The environment value acquisition device 400 acquires the environment value and records the history information (environment value history information). The environment value acquisition device 400 is, for example, a thermo-hygrometer installed indoors, or a thermo-hygrometer, a temperature sensor, a humidity sensor, or the like installed outdoors. Although the case of one environmental value acquisition device 400 is shown in FIG. 1, a plurality of environmental value acquisition devices 400 may be installed, for example, indoors and outdoors.

Next, the air conditioning control device 100 will be further described.
The timekeeping unit 116 measures the time and outputs the timed time to the history information acquisition unit 111, the instruction unit 112, and the control value determination unit 115. The timekeeping unit 116 may acquire time information via a network.

The history information acquisition unit 111 acquires the current operation mode and set temperature output by the air conditioner 200, and stores the acquired current operation mode and set temperature in the history information storage unit 101 as set value history information. Let me. The history information acquisition unit 111 acquires information about the user detected by the air conditioner 200 output by the control value determination unit 115, and stores the acquired information about the user in the history information storage unit 101. The information about the user includes information indicating the presence or absence of the user, information indicating the number of users, and the like. The history information acquisition unit 111 acquires the environment value history information output by the environment value acquisition device 400, and stores the acquired environment value history information in the history information storage unit 101. The timing at which the history information acquisition unit 111 acquires the set value history information from the air conditioner 200 and the timing at which the environment value history information is acquired from the environment value acquisition device 400 are arbitrary. For example, the history information acquisition unit 111 periodically acquires the set value history information and the environment value history information at regular intervals based on the result measured by the timekeeping unit 116. Further, the history information acquisition unit 111 satisfies the set value history information and the environment value history information when a predetermined condition such as whether or not the acquisition time is set in advance based on the result measured by the timekeeping unit 116 is satisfied. May be obtained. The information included in the set value history information may be at least one of the set temperature and the set humidity.

The history information storage unit 101 stores the set value history information acquired from the air conditioner 200 by the history information acquisition unit 111 and the environment value history information acquired from the environment value acquisition device 400. The information stored in the history information storage unit 101 will be described later with reference to FIG.

The setting information storage unit 102 stores the setting information (including the setting information of the identification boundary table) and the control content table that determine the operation of the air conditioning control device 100. The setting information stored in the setting information storage unit 102 will be described later with reference to FIG. 3, and the control content table will be described later with reference to FIG.

The permissible range storage unit 103 stores the set temperature table. The set temperature table will be described later with reference to FIGS. 11 and 12.

The timekeeping unit 116 measures the time and outputs the timed time to the history information acquisition unit 111, the instruction unit 112, and the control value determination unit 115. The time measured includes the year, month, day, and time.

The indicator unit 112 acquires the time measured by the timekeeping unit 116. The instruction unit 112 acquires the setting information and the control content table stored in the setting information storage unit 102. The instruction unit 112 acquires the attribute output by the division unit 113 and the division value thereof.
The instruction unit 112 outputs an instruction for obtaining an attribute and a division value to the division unit 113 based on the acquired setting information and the time measured by the timing unit 116.
The instruction unit 112 outputs the acquired setting information of the identification boundary table to the permissible range calculation unit 114. The instruction unit 112 gives the permissible range calculation unit 114 an attribute from the division unit 113 and an instruction to acquire the division value to the permissible range calculation unit 114 based on the acquired setting information and the time measured by the timekeeping unit 116. Output. The instruction unit 112 outputs an instruction to generate a set temperature table to the allowable range calculation unit 114 by using the acquired setting information and the divided value.
The instruction unit 112 generates information on whether the current time is the search execution period or the search non-execution period based on the acquired setting information and the time measured by the timekeeping unit 116, and determines the generated information as a control value. Output to unit 115. The search implementation period and the search non-execution period will be described later. The instruction unit 112 outputs an instruction to acquire the current operation mode and the set temperature from the air conditioner 200 to the control value determination unit 115. The instruction unit 112 outputs an instruction for obtaining the optimum temperature on the day when the control content is set to the control value determination unit 115.

The division unit 113 acquires the set value history information and the environment value history information stored in the history information storage unit 101 in response to the instruction output by the instruction unit 112. The division unit 113 obtains an attribute from the acquired environment value history information. The attributes will be described later with reference to FIG. The dividing unit 113 divides the attribute into two for each set temperature in the acquired set value history information and obtains the divided value. The divided value is, for example, temperature. The method of division and the method of obtaining the division value will be described later. The division unit 113 outputs the attribute and the division value to the control value determination unit 115.

The permissible range calculation unit 114 acquires the attribute output by the division unit 113 and the division value thereof in response to the instruction output by the instruction unit 112. The permissible range calculation unit 114 acquires the setting information of the identification boundary table stored in the setting information storage unit 102 via the instruction unit 112.
The permissible range calculation unit 114 obtains the feature amount for each set temperature in the attribute by using the acquired divided value. The feature quantity is, for example, a coefficient parameter of the Weibull distribution. The feature amount and the method of obtaining the feature amount will be described later.
The permissible range calculation unit 114 extracts the parameters of the identification boundary from the acquired setting information of the identification boundary table. The permissible range calculation unit 114 obtains the discriminating boundary line for classifying into the permissible range region and the non-allowable range region based on the parameters of the discriminating boundary and the feature amount at the determined set temperature. The method of obtaining the identification boundary line will be described later. The permissible range calculation unit 114 determines whether or not the set temperature is within the permissible range based on the feature amount of the set temperature and the identification boundary line. The permissible range calculation unit 114 generates a set temperature table based on the determination result, and stores the generated set temperature table in the permissible range storage unit 103. The set temperature table will be described later.

The control value determination unit 115 acquires the usage attribute and its division value from the division unit 113 via the instruction unit 112. The control value determination unit 115 acquires the information of the control content table stored in the setting information storage unit 102 via the instruction unit 112. The control value determination unit 115 acquires the history information for calculating the value of the usage attribute of the day when the control content is set from the history information storage unit 101 in response to the instruction output by the instruction unit 112, and the value of the usage attribute. Is calculated. The control value determination unit 115 acquires a set temperature table stored in the allowable range storage unit 103. The control value determination unit 115 acquires the current operation mode and set temperature from the air conditioner 200. The control value determination unit 115 compares the value of the usage attribute on the day when the control content is set with the divided value, and obtains the optimum temperature and the control content on the day when the control content is set. The method of obtaining the optimum temperature and the control contents will be described later. The control value determination unit 115 stores the information about the user acquired from the air conditioner 200 in the history information storage unit 101.

The permissible range calculation unit 114 and the control value determination unit 115 may execute the process each time an instruction is given, or execute the process a plurality of times within the valid period specified by one instruction. You may.

Next, the input / display device 300 will be further described.
The display unit 301 accepts the user's operation and displays the set temperature which is the result of the accepted operation.
The input unit 302 receives the operation of the user and outputs the set temperature, which is the result of the accepted operation, to the air conditioner 200.

Next, the air conditioner 200 will be further described.
The detection unit 201 detects the presence or absence of the user. The information on the presence or absence of the user detected by the detection unit 201 is acquired by the air conditioning control device 100 together with the information on the set temperature. Further, the detection unit 201 may be installed independently without being attached to the air conditioner 200.
The control unit 202 acquires the current operation mode and set temperature from the input / display device 300, reflects them in the set value of the air conditioner 200, and outputs the acquired current operation mode and set temperature to the communication unit 203. To do.
The communication unit 203 outputs the current operation mode and set temperature to the history information acquisition unit 111 and the control value determination unit 115 of the air conditioning control device 100.

Next, an example of the information stored in the history information storage unit 101 will be described.
FIG. 2 is a diagram showing an example of set value history information and environment value history information stored in the history information storage unit 101 in the present embodiment. FIG. 2A is an example of set value history information. FIG. 2B is an example of environment value history information.

As shown in FIG. 2A, the set value history information includes the time when the air conditioner 200 records the set temperature, the operation mode of the air conditioner (“cooling”, “heating” or “stop”), and the setting. Including temperature. For example, the time is 2016-03-01 07:59:00 (7:59:00 on March 1, 2016), the operation mode is stopped, and the set temperature is 22 °. The set value history information of FIG. 2A shows a case where the set temperature is recorded at recording intervals of 1 minute. However, the recording interval may be set to an arbitrary recording interval such as every 5 minutes or every 10 minutes.

As shown in FIG. 2B, the environment value history information includes the time when the environment value acquisition device 400 records the environment value and the environment value. For example, the time is 2016-03-01 08:00:00 (March 1, 2016 8:00:00), the room temperature is 22.7 ° C, the indoor humidity is 53%, the outside temperature is 4.0 ° C, The outside air humidity is 37%. The environmental values in FIG. 2B are room temperature, indoor humidity, outside air temperature, and outside air humidity, but the environmental values are not limited to these. The environment value history information of FIG. 2B shows a case where each environment value is recorded at a recording interval of 1 minute. However, the recording interval may be set to an arbitrary recording interval such as every 5 minutes or every 10 minutes. In addition, different recording intervals may be set depending on the environment value.

Next, an example of the information stored in the setting information storage unit 102 will be described.
FIG. 3 is a diagram showing an example of setting information stored in the setting information storage unit 102 in the present embodiment. The setting information may include setting information other than the setting information shown in FIGS. 3 (A) to 3 (G).

FIG. 3A is an example of an operation period table for setting the operation period of the air conditioning control device 100. The operation period table includes the operation start time, operation end time, and operation mode of the air conditioning control device 100. The operation mode is set to either "heating" or "cooling". The air conditioning control device 100 is operated in the mode set in the operation mode during the operation period from the operation start time set in the operation period table to the operation end time. In the example shown in FIG. 3 (A), the operation period in the heating mode is from 2015-12-01 00:00 (December 1, 2015 00:00:00) to 2016-03-31 23:59. : 59 (March 31, 2016 23:59:59) is shown.

FIG. 3B is an example of a search execution period table for setting a search execution period. The search execution period table includes the number of days in the search execution period and the number of days in the search non-execution period. The number of search execution days is the number of consecutive periods in which the search is executed. In the example shown in FIG. 3B, it is shown that 7 days is preset as the number of search execution days in the search execution period table. .. The number of days for which the search is not performed is the number of days in a continuous period during which the search is not performed. In the example shown in FIG. 3B, it is shown that 14 days is preset as the number of non-search days.

FIG. 3C is an example of an allowable range calculation time table for setting a calculation time for calculating the allowable range. The permissible range calculation time is the time when the air conditioning control device 100 calculates the permissible range, and in the example shown in FIG. 3C, 07:00:00 (7:00:00) is preset. Is shown. The allowable range is calculated once, for example, when the allowable range calculation time is first reached in the search execution period. However, the calculation of the permissible range is performed every day during the search execution period at the permissible range calculation time, or once when the permissible range calculation time is first reached after the end of the search execution period. You may.

FIG. 3D is an example of a set temperature change time table in which a control value is output from the control value determination unit 115 to change the set temperature of the air conditioner 200 and the set temperature change time is set. In the example shown in FIG. 3D, the set temperature change times are three times a day at 10:00:00 (10:00), 12:00:00 (12:00), and 15:00 (15:00). ) Is set.

FIG. 3 (E) is an example of a table showing the types of attributes and the calculation time obtained from the environment value history information in the division unit 113. In the division unit 113, the attributes are calculated at the same time when the set value history information is calculated. In the example shown in FIG. 3 (E), the attributes are "outside air temperature OT at time ta on the day", "room temperature RT at time ta on the day", "average outside temperature OTM from ts to te one day before", and "1". It is shown that the room temperature average RTM of ts to te of the day before is used. The time used for calculating each attribute is described in the column of “calculation time” in FIG. 3 (E), indicating that the calculation time for each gender attribute can be set for each attribute. For example, when the attribute is "outside air temperature OT at the time ta of the day", it indicates that the calculated time is set to ta = 07:00:00 (7:00:00).
In the example shown in FIG. 3 (E), for example, one calculation time of "outside air temperature OT at time ta on the day" is shown, but the calculation time may be plural. Similarly, for other attributes, the calculation time may be plural. Further, the attribute is not limited to that of FIG. 3 (E), and any attribute that can be calculated from the environment value history information may be used. For example, an index of warm / cold sensation such as PMV (Predicted Mean Vote: Predicted Mean Voter) or SET ^* (Standard New Effective Temperature) based on room temperature or humidity may be used as an attribute. .. For the values required for obtaining the hot / cold sensation index that are not acquired by the environment value acquisition device 400, the values stored in the setting information storage unit 102 may be used, and the values are stored via the indicator unit 112. It may be calculated by the division part 113. As the index of the feeling of warmth and coldness, for example, "PMV at the time ta of the day" or "average value of PMV one day before" may be used. The calculation of attributes will be described later.

FIG. 3F is an example of the types of attributes used when the set value history information is divided by the attribute values in the division unit 113. In FIG. 3 (F), the set value history information is divided by the “outside air temperature OT at time ta”. The available attributes are at least one of the attributes shown in FIG. 3 (E). The method of dividing the set value history information will be described later. The information to be divided by the dividing unit 113 is not limited to the set value history information, and both the set value history information and the environment value history information may be divided.

FIG. 3 (G) is an example of an identification boundary table for setting an identification boundary. The identification boundary table includes setting information of "feature amount type" and "use parameter of identification boundary". The feature amount type represents the type of feature amount used for the allowable range calculation unit 114 to calculate the allowable range. For the feature type "Weibull" in FIG. 3 (G), the Weibull distribution is applied to the analysis of the duration at each set temperature in the calculation of the feature amount described later, and the coefficient parameter of the Weibull distribution is used as the feature amount. Is shown. Further, the identification boundary parameter is a parameter that defines a boundary for classifying the set value into an allowable range group and a non-allowable range group based on the calculated feature amount. The parameters of the discrimination boundary are determined by machine learning such as an SVM (Support Vector Machine) model in which the calculated feature amount is an explanatory variable and whether it is within the permissible range or out of the permissible range is the objective variable. (A, b) of FIG. 3 (G) are parameters that define, for example, a linear function. It should be noted that several types of combinations of the feature amount type and the usage parameter of the identification boundary may be prepared in advance depending on the feature amount type, and an arbitrary feature amount type may be set and stored in the setting information storage unit 102.

Next, the search execution period table of FIG. 3B will be described with reference to FIG.
FIG. 4 is a diagram showing an example of the relationship between the search execution period and the search non-execution period in the operation period of the air conditioning control device 100 in the present embodiment. In FIG. 4, the horizontal axis is time.
In FIG. 4, the operation period is a period from the operation start time (time t11) shown in FIG. 3 (A) to the operation end time (time t16). The search non-execution period and the search implementation period are in the operation period. The search is repeated alternately for the number of days for which the search is performed and the number of days for which the search is not performed, as shown in FIG. In FIG. 4, the search non-execution period (time t11 to time t12) is started from the operation start time (time t11), and thereafter, the number of days in the search execution period (time t12 to time t13 is, for example, 7 days , time). An example is shown in which the number of days in the period from t14 to time t15 is, for example, 7 days ) and the search non-execution period ( the number of days in the period from time t13 to time t14 is, for example, 14 days ) are alternately performed. In the present embodiment, by repeating the search non-execution period and the search execution period, the permissible range can be appropriately changed during the operation period, and air conditioning control that achieves both comfort and energy saving is possible.

Here, the search is a search for an allowable range of the set temperature that can be tolerated by the user of the air conditioner 200. The permissible range of the set temperature that the user can tolerate is, for example, a temperature range above the temperature at which the user can tolerate cold in the case of heating, and a temperature range below the temperature at which the user can tolerate heat in the case of cooling. Is. The set temperature that saves the most energy in the permissible range is the lowest lower limit temperature in the permissible range in the case of heating and the highest upper limit temperature in the permissible range in the case of cooling. In the present embodiment, the set temperature (upper limit temperature or lower limit temperature) that saves the most energy within the permissible range is hereinafter referred to as "optimal set temperature". The air conditioning control device 100 can realize energy saving in the air conditioner 200 by calculating the optimum set temperature as a control value for air conditioning control and outputting it to the air conditioner 200. The air conditioning control device 100 searches for whether or not the allowable range can be changed to the energy saving side during the search period. That is, during the search period, the air conditioning control device 100 controls so as to change the set temperature. The air conditioning control device 100 controls to lower the set temperature when the operation mode is heating, and controls to raise the set temperature when the operation mode is cooling. If the user feels uncomfortable when the set temperature is changed in this way, the user operates to change the set temperature. In the present embodiment, by acquiring such a history, the setting range that the user can tolerate and the static set temperature that can realize energy saving are obtained in consideration of the influence of the outside air.

Next, the allowable range calculation time set in FIG. 3C and the set temperature change time set in FIG. 3D will be described with reference to FIG.
FIG. 5 shows the time when the allowable range calculation unit 114 in the present embodiment calculates the allowable range, and the control value determination unit 115 calculates the control value and outputs the control value instructing the change of the set temperature to the air conditioner 200. It is a figure which shows an example of time. In FIG. 5, the horizontal axis is time.

In FIG. 5, the timing for calculating the allowable range is the operation period set in FIG. 3 (A), the search period set in FIG. 3 (B), and the allowable range calculation time set in FIG. 3 (C). It is decided based on. The instruction unit 112 acquires these pieces of information stored in the setting information storage unit 102, determines whether or not it is the allowable range calculation time, and instructs the allowable range calculation unit to calculate the allowable range. The instruction unit 112 determines, for example, 7:00 am on the start date of the search execution period and 7:00 am on the start date of the search non-execution period as the allowable range calculation time. In the example shown in FIG. 5, the start date of the search non-execution period is the day following the end date of the search execution period. The start date of the search implementation period will be the day following the end date of the search non-execution period. The timing for calculating the permissible range is not limited to the timing shown in FIG. 5 and the like, and may be calculated only on the start date of the search execution period, for example.

Next, the details of the processing performed by the dividing unit 113 will be described with reference to FIGS. 6 and 7. FIG. 6 is a diagram showing an example of a set temperature duration and attribute calculation method executed by the division unit 113 in the present embodiment.

FIG. 6A shows an example of set value history information stored in the history information storage unit 101. The set value history information is recorded as a change in the set temperature with the passage of time. In the example shown in FIG. 6A, the set temperature from t1 to t2 is 22 ° C, the set temperature from t2 to t3 is 21 ° C, and the set temperature from t3 to t4 is 22 ° C. t1 is the operation start time of the air conditioner 200. t4 is the operation stop time of the air conditioner 200. The set temperature duration is represented by how long each set temperature lasted between the operation start time and the operation stop time of the air conditioner 200.

6 (B) and 6 (C) show the environmental value history information stored in the history information storage unit 101. Environmental value history information is recorded as changes in environmental values over time. FIG. 6B shows changes in the outside air temperature on the day and the room temperature on the day in the set value history information of FIG. 6A. The solid line shows the change in the outside air temperature on the day, and the broken line shows the change in the room temperature on the day. FIG. 6 (C) shows changes in the previous day's outside air temperature and the previous day's room temperature in the set value history information of FIG. 6 (A). The solid line shows the change in the outside air temperature one day ago, and the broken line shows the change in the room temperature one day ago.

FIG. 6D is a relationship diagram of the set temperature duration and the event value and the attribute calculated based on the set value history information of FIG. 6A. In the following, the set temperature duration and the event will be explained first. The set temperature duration is calculated as (t2-t1) and (t4-t3), for example, when the set temperature is 22 ° C. Further, the set temperature duration is calculated as (t3-t2) when the set temperature is 21 ° C. The time before t1 and the time after t4 when the air conditioner is not operating are not included in the calculation of the set temperature duration. The dividing unit 113 associates the event value with the calculated set temperature duration.

Here, the event means a change in the set temperature by the user. When the user operates the input / display device 300 to change the set temperature, the division unit 113 sets the event value to 1. In other cases, the division unit 113 sets the event value to 0. For example, when the operation mode of the air conditioner 200 is heating and the user raises the set temperature, it can be estimated that the user cannot tolerate the cold due to the current set value. Further, when the operation mode of the air conditioner 200 is cooling and the user lowers the set temperature, it can be estimated that the user cannot tolerate the heat. That is, the time when the event occurs is the time when the user determines that the current set value cannot be tolerated. In this embodiment, the permissible range of the set temperature that saves energy is calculated. Therefore, for example, when the user lowers the set temperature due to overheating in heating or raises the set temperature due to overcooling in cooling, the division unit 113 sets the event value to 0. Further, the division unit 113 also sets the event value to 0 even when the operation of the air conditioner 200 is stopped by manual operation by the user or in automatic operation.
For example, FIG. 6B shows an example in which the set temperature is raised from 21 ° C. to 22 ° C. by the user at time t3 in the heating mode. Therefore, the dividing unit 113 sets the value of the event corresponding to the set temperature duration t3-t2 of 21 ° C. to 1. Further, the dividing unit 113 sets all the values of other events of the set temperature duration to 0.
The time used by the division unit 113 for division is the time during which the set value continues from the start of operation of the air conditioning control device 100 in a predetermined operation mode (heating, cooling) to the division of the history information regarding the set value. ..

Next, the attributes in FIG. 6D will be described.
In the example shown in FIG. 6 (D), "outside air temperature OT at time ta on the day", "room temperature RT at time ta on the day", "average outside temperature OTT from ts to te one day ago", "ts ts one day before". "Room temperature average RTM of ~ te" is an attribute.
The calculation method of these four attributes will be described in order. The "outside air temperature OT at the time ta of the day" is calculated by the dividing unit 113 by the value of the time ta of the outside air temperature acquired as the environmental value history information on the same day as the time used for calculating the set temperature duration. Is. In the example shown in FIG. 6D, it is shown that the outside air temperature at time ta on the same day as time t1, t2, t3, and t4 is 4.0 ° C., and the value is given to each set temperature duration. It shows that there is. The calculation of the set temperature duration (t10-t9) on another day indicates that the outside air temperature at time ta on the days t9 and 10 is 3.8 ° C.
Further, the dividing unit 113 also calculates the “room temperature RT at the time ta of the day” in the same manner.

The "average outside temperature OTM of ts to te one day ago" is the outside temperature of time te from the time ts of the outside temperature acquired as the environmental value history information one day before the time used for calculating the set temperature duration. It is an average value. The average value is calculated by the division unit 113. In the example shown in FIG. 6 (D), it is shown that the average value of the outside air temperature at time te from the time ts on the day before the time t1, t2, t3, t4 is 7.8 ° C. Indicates that a value has been assigned. Further, in the example shown in FIG. 6D, the average value of the outside air temperature at time te from the time ts on the day before that day is 6.4 ° C. in the set temperature duration (t10-t9) on another day. Is shown.
Further, the dividing unit 113 also calculates "room temperature average RTM of ts to te one day ago" in the same manner.
Further, the division unit 113 also obtains the calculation of the hot / cold feeling index based on the similarly acquired environmental value history information.

The dividing unit 113 performs a survival time analysis based on, for example, the set temperature duration shown in FIG. 6 (D). Here, the survival time analysis is one of the methods for predicting the survival time of the observation target. For example, a machine or the like is set as an observation target, and the time (survival time) until the failure (death) of the observation target is predicted. The failure of the observed object is called an event in the survival time analysis. Survival time is the time from the start of observation to the occurrence of an event. In the present embodiment, the observation start time and the observation end time in the survival time analysis are arbitrary. For example, the heating start date may be the observation start time and the heating end date may be the observation end time. In the present embodiment, the set temperature is the observation target, and the change of the set temperature is used as an event, so that the set temperature duration is set as the survival time of the set temperature. That is, in the relationship diagram between the set temperature duration and the event value shown in FIG. 6B, the change of the set temperature at which the event value is 1 is regarded as an event. Further, in the present embodiment, the change of the set temperature at which the event value is 0 is terminated. Note that censoring means that observation is censored in the middle without an event occurring.

In the survival time analysis of the present embodiment, the set temperature duration is represented by a survival function for each set temperature. The survival function S (t) is a function of the probability (survival rate) that the observed object is alive at time t (t is a real number larger than 0). The survival function S (t) is represented by the ratio of the number of set temperature durations longer than the time t to the number of all set temperature durations (sample size).

The dividing unit 113 divides the duration for each set temperature according to the usage attribute specified in FIG. 3 (F). An example of the division method will be described below. The division unit 113 prepares a plurality of threshold values after rearranging the values of the usage attributes in ascending order. The dividing unit 113 divides the set temperature duration to which the attribute value is given as shown in FIG. 6D into two according to the threshold value. As a method of calculating the threshold value, for example, the number of threshold values may be set to 10, and the threshold value may be determined so as to divide the attribute from the minimum value to the maximum value equally. The range of the number of divisions and the value of the attribute is stored in, for example, the setting information storage unit 102.

The division unit 113 applies a log rank test to the data of the set temperature duration divided into two for each threshold value to calculate the p-value. Here, the log rank test is a method for testing whether or not two survival time data are different in the survival time analysis. In the log rank test, the smaller the p-value, the more different the two survival time data can be expected. The division unit 113 uses the threshold value at which the p-value becomes the minimum when the set temperature duration is divided by the above-mentioned plurality of threshold values as the final division value.

FIG. 7 is a diagram showing an example of a calculation method for dividing the data of the set temperature duration according to the OT which is the outside air temperature at the time ta. In FIG. 7, the horizontal axis is time and the vertical axis is survival rate. FIG. 7 (A) shows an example of the time change of the survival rate when the attribute is "outside air temperature OT at the time ta of the day" and the set temperature is 22 ° C., and the survival function is Kaplan-Meier. An example modeled by the method is shown. FIG. 7B shows that the attribute is “outside air temperature OT at time ta on the day” and Tb ° C. is selected as the final division value. Further, in FIG. 7B, the symbol g1 indicates a time change of the survival rate of the divided value Tb or more in the set temperature of 22 ° C. and the utilization attribute of “outside air temperature OT at time ta of the day”. Further, the symbol g2 indicates a time change of the survival rate of less than the divided value Tb in the set temperature of 22 ° C. and the utilization attribute of "outside air temperature OT at time ta of the day". Further, FIG. 7B shows that Tb ° C. was selected as the final divided value.

The division method is not limited to the above-mentioned method, and a method such as using the p-value of the t-test may be used. Further, instead of determining the divided value based on the data as described above, the divided value may be determined in advance and the set temperature duration may be divided. When the divided value is determined in advance, the value may be stored in the setting information storage unit 102.
Further, although FIG. 7 describes the case where the set temperature is 22 ° C., the division of the duration of other set temperatures can be calculated in the same manner. Further, instead of determining the divided value for each set temperature, a single divided value may be determined for the duration of all the set temperatures.

Further, although FIG. 7 shows an example of a division method using a single attribute, a plurality of attributes may be combined. As a method of combining a plurality of attributes, for example, there is a method using a Cox proportional hazard model. In the survival time analysis, there is a function called the instantaneous mortality rate or the hazard function, and the hazard function h (t) is given to the survival function S (t) by the following equation (1).

The Cox proportional hazard model is a model of h (t) in the equation (1) by the following equation (2).

In equation (2), the function h0 (t) is called the baseline hazard function. Here, a1, a2, ..., An is estimated with z1, z2, ..., Zn as attributes. The estimation is performed by, for example, the maximum likelihood estimation method. Here, the estimated a1 * z1 + a2 * z2 + ... + An * zn is called a score, and this score value is given to the set temperature duration. Similar to the data division of the set temperature duration for the single attribute described above, multiple threshold values are prepared, the data is divided into two for each threshold value, and then the threshold value at which the p-value of the log rank test is minimized is set. It may be the final divided value. In order to use the score for division, the attribute in FIG. 3 (F) may be used as the score. In this case, the dividing unit 113 divides the set temperature duration using this score.

As the attributes used for calculating the score, it is not necessary to use all the attributes registered in FIG. 3 (E), and they may be combined as appropriate. It is assumed that the combination method is stored in the setting information storage unit 102. Further, the attribute to be used for the score calculation may be selected by using the model selection index such as AIC (Akaike Information Criterion).
Further, the method of combining a plurality of attributes to obtain a score is not limited to the Cox proportional hazard model, and a logistic distribution or the like may be used.
Further, the division unit 113 can determine the division value for each set temperature for the division by the score. Further, the division unit 113 may determine a single division value for the duration of all the set temperatures, instead of determining the division value for each set temperature.
Although the divided values may be different for each set temperature, FIGS. 8 to 14 described later show an example in which the divided values are the same for the durations of all the set temperatures.

As described above, the division unit 113 outputs the set temperature duration divided by the attribute or the score to the allowable range calculation unit 114. Further, the dividing unit 113 gives the indicating unit 112 a divided value for each set temperature. The indicator unit 112 further outputs the divided value for each set temperature to the control value determining unit 115.

Next, the details of the processing performed by the permissible range calculation unit 114 will be described with reference to FIGS. 8 to 14.
As described above, the permissible range calculation unit 114 obtains the feature amount, and obtains the identification boundary line for classifying into the permissible range region and the non-permissible range region. Then, the permissible range calculation unit 114 determines whether or not the set temperature is within the permissible range based on the feature amount of the set temperature and the identification boundary line, and generates a set temperature table based on the determination result.

First, an example of a method for calculating a feature amount will be described.
FIG. 8 is a diagram showing an example of a method for calculating a feature amount in the present embodiment. FIG. 8A is a graph in which the survival function of the set temperature when the usage attribute is “outside air temperature OT at the time ta of the day” and the divided value is Tb ° C. is modeled by the Weibull distribution. In FIG. 8A, the horizontal axis is time and the vertical axis is survival rate. FIG. 8B shows the calculation results of calculating the scale parameter λ and the shape parameter p, which will be described later, based on the graph approximated in FIG. 8A.

In FIG. 8A, the symbol g11 indicates a time change in the survival rate at which the set temperature is 22 ° C. and the “outside air temperature OT at the time ta of the day” is equal to or greater than the divided value Tb. Reference numeral g12 indicates a time change in the survival rate in which the set temperature is 22 ° C. and the “outside air temperature OT at the time ta of the day” is less than the divided value Tb. Reference numeral g13 indicates a time change in the survival rate in which the set temperature is 21 ° C. and the “outside air temperature OT at the time ta of the day” is equal to or higher than the divided value Tb. Reference numeral g14 indicates a time change in the survival rate in which the set temperature is 21 ° C. and the “outside air temperature OT at the time ta of the day” is less than the divided value Tb.

The permissible range calculation unit 114 acquires the feature amount type and the identification boundary utilization parameter stored in the setting information storage unit 102 as shown in FIG. 3 (G). Note that FIG. 8 shows an example of calculating the coefficient parameter of the Weibull distribution as a feature amount.
The permissible range calculation unit 114 performs a survival time analysis based on the set temperature duration as shown in FIG. 6 (D). In this embodiment, an example of modeling the survival function S (t) for each set temperature with a Weibull distribution will be described. The survival function S (t) is expressed by the following equation (3) using the scale parameter λ and the shape parameter p.

In FIG. 8A, the survival function (reference numeral g12) of 22 ° C. in which the “outside air temperature OT at the time ta of the day” is less than Tb ° C. is 22 ° C. in which the “outside air temperature OT at the time ta of the day” is Tb ° C. or higher. The decrease with time t is large with respect to the survival function (reference numeral g11) of. That is, when the temperature setting is set to 22 ° C. when the "outside air temperature OT at the time ta of the day" is less than Tb ° C., the temperature setting is set to 22 ° C. when the "outside air temperature OT at the time ta of the day" is Tb ° C. or higher. This indicates that the probability that the set value will be raised (event will occur) by the user is higher than in the case of setting.
Similarly, the survival function of 21 ° C. (reference numeral g14) in which the "outside air temperature OT of the day time ta" is less than Tb ° C. is the survival function of 21 ° C. in which the "outside air temperature OT of the day time ta" is Tb ° C. or higher (sign g14). The decrease with time t is large with respect to the symbol g13). That is, when the temperature setting is set to 21 ° C. when the "outside air temperature OT at the time ta of the day" is less than Tb ° C., the temperature setting is set to 21 ° C. when the "outside air temperature OT at the time ta of the day" is Tb ° C. or higher. This indicates that the probability that the set value will be raised (event will occur) by the user is higher than in the case of setting. Further, the survival function of 21 ° C. (reference numeral g14) in which the “outside air temperature OT at the time ta of the day” is less than Tb ° C. The decrease with time t is large with respect to g12).

FIG. 8B shows the calculation result in which the permissible range calculation unit 114 calculated the scale parameter λ and the shape parameter p of the equation (3) based on the graph approximated in FIG. 8A. In the present embodiment, the scale parameter λ and the shape parameter p calculated by the permissible range calculation unit 114 are set as feature quantities at the respective set temperatures. As shown in FIG. 8B, the permissible range calculation unit 114 calculates the scale parameter λ and the shape parameter p for the divided values Tb or more and less than Tb for each set temperature. For example, when the set temperature is 21 ° C., the scale parameter λ above Tb is 0.2 and the shape parameter p is 1.3, the scale parameter λ below Tb is 0.25 and the shape parameter p is 1. It is 0.7.

The set temperature for calculating the feature amount may be all set temperatures acquired by the history information acquisition unit 111 or some set temperatures. Further, when there are a plurality of air conditioners 200, the feature amount may be calculated for each air conditioner 200. Further, as the set value history information used by the permissible range calculation unit 114 at the permissible range calculation time, even if all the history information from the permissible range calculation time to the operation start time is used, the permissible date of the search execution period start date. The history information of the search non-execution period immediately before the range calculation time may be used, or the history information of the search execution period immediately before the permissible range calculation time of the search non-execution period start date may be used.
In FIG. 8, the case where the survival function S (t) is modeled by the Weibull distribution is illustrated, but the distribution model is not limited to the Weibull distribution, and the feature amount is the scale parameter λ and the shape parameter of the Weibull distribution. It is not limited to the one calculated by p. For example, the average and dispersion of the set temperature duration may be used as the feature quantity. Further, as a method for calculating the feature amount, for example, the maximum likelihood method or the like may be used.

Next, an example of how to obtain the identification boundary line will be described.
FIG. 9 is a diagram showing an example of a plot diagram of the scale parameter λ and the shape parameter p, which are feature quantities. In FIG. 9, the horizontal axis is the scale parameter λ and the vertical axis is the shape parameter p. Circles are plot values of features at each set temperature.
The coordinates of the feature amount can be classified into an allowable range area and a non-allowable range area by the identification boundary line g21. The identification boundary line g21 is obtained by the permissible range calculation unit 114 from the use parameters (a, b) of the identification boundary in FIG. 3 (G).

FIG. 9 shows an example in which the discrimination boundary is represented by a linear function (straight line) of slope a and intercept b. The usage parameters of the identification boundary are assumed to be given in advance, for example. The usage parameter of the identification boundary is, for example, a permissible range using a machine learning method such as a linear support vector machine that classifies the permissible range and the non-permissible range determined by the user in the historical information of the past set temperature. The calculation unit 114 may calculate. The determination by the user may be made by, for example, the length of the set temperature duration.

In FIG. 9, the region of the set temperature existing on the upper left of the identification boundary line is the allowable set temperature (allowable range). Further, the region of the set temperature existing at the lower right of the identification boundary line is an unacceptable temperature (outside the allowable range). In the example shown in FIG. 9, for example, when the set temperature is 22 ° C. and the "outside air temperature OT at the time ta of the day" is Tb ° C. or higher and 23 ° C., it is within the permissible range, and when the set temperature is 22 ° C. and "the day". When the "outside air temperature OT at time ta" is less than Tb ° C. and 21 ° C., it is out of the permissible range.
As shown in FIG. 9, the permissible range calculation unit 114 determines whether or not the set temperature is within the permissible range based on the feature amount of the set temperature and the identification boundary line. Based on the determination result, the permissible range calculation unit 114 generates a set temperature table, which will be described later, using FIG.

In the present embodiment, the case where the permissible range calculation unit 114 determines whether or not the set temperature is within the permissible range is illustrated, but the method for determining the feature amount is not limited to this. For example, the permissible range calculation unit 114 determines the value of the logistic distribution obtained by substituting the feature amount calculated for each set temperature into the explanatory variable of the logistic distribution by using the logistic distribution in which the coefficient parameter is calculated in advance. You may use it for.

10 and 11 are diagrams for explaining the method of calculating the feature amount based on the set temperature duration and the identification boundary of the feature amount when the score is used as the usage attribute. The permissible range calculation unit 114 generates a set temperature table even when the utilization attribute is a score. FIG. 10A is a graph in which the survival function of the set temperature when the utilization attribute is the score and the division value is Sb is modeled by the Weibull distribution. In FIG. 10A, the horizontal axis is time and the vertical axis is survival rate. FIG. 10B shows the calculation results of calculating the scale parameter λ and the shape parameter p based on the graph approximated in FIG. 10A.

In FIG. 10A, reference numeral g31 indicates a time change in the survival rate at which the set temperature is 22 ° C. and the score is less than the divided value Sb. Reference numeral g32 indicates a time change in the survival rate at which the set temperature is 22 ° C. and the score is the division value Sb or more. Reference numeral g33 indicates a time change in the survival rate at which the set temperature is 21 ° C. and the score is less than the divided value Sb. Reference numeral g34 indicates a time change in the survival rate at which the set temperature is 21 ° C. and the score is the division value Sb or more.
The permissible range calculation unit 114 analyzes the survival time based on the set temperature duration.

FIG. 10B shows the calculation result in which the permissible range calculation unit 114 calculated the scale parameter λ and the shape parameter p of the equation (3) based on the graph approximated in FIG. 10A. As shown in FIG. 10B, the permissible range calculation unit 114 calculates the scale parameter λ and the shape parameter p for each set temperature for the division value (score) Sb or more and less than Sb. For example, when the set temperature is 21 ° C., the scale parameter λ below Sb is 0.19 and the shape parameter p is 1.4, the scale parameter λ above Sb is 0.27 and the shape parameter p is 1. It is 8.8.

In FIG. 11, the horizontal axis is the scale parameter λ and the vertical axis is the shape parameter p. Circles are plot values of features at each set temperature. Similar to FIG. 9, the coordinates of the feature amount can be classified into an allowable range area and a non-allowable range area by the identification boundary line g21.

Further, FIG. 11 shows an example in which the discrimination boundary is represented by a linear function (straight line) of the slope a and the intercept b. In the example shown in FIG. 11, for example, when the set temperature is 22 ° C. and the score is less than Sb and 23 ° C., it is within the permissible range, and when the set temperature is 22 ° C. and the score is Sb or more and 21 ° C. It is out of the allowable range.
As shown in FIG. 11, the permissible range calculation unit 114 determines whether or not the set temperature is within the permissible range based on the feature amount of the set temperature and the identification boundary line g21. The permissible range calculation unit 114 generates a set temperature table based on the determination result.

Next, the set temperature table generated by the allowable range calculation unit 114 and stored in the allowable range storage unit 103 will be described with reference to FIGS. 12 and 13.

FIG. 12 is a diagram showing an example of a set temperature table in which the divided value is Tb ° C. with the “outside air temperature OT at the time ta of the day” as a usage attribute.
As shown in FIG. 12, the set temperature table includes items for heating / cooling type, set temperature, division range, and allowable range determination.

For the item of heating / cooling type, the type of cooling or heating is set. In the example shown in FIG. 12, a set temperature table for heating is shown. The division range is a range divided into two by the division value of the attribute determined by the division unit 113. In the example shown in FIG. 12, the "outside air temperature OT at the time ta of the day" shows a range of Tb or more and a range of less than Tb. The items for determining the set temperature and the allowable range are the determination results of whether the temperature is within the allowable range or out of the allowable range for each division range.
In the example shown in FIG. 12, the permissible range determination is out of the permissible range at the set temperature of 20 ° C. and 21 ° C., and at the set temperature of 22 ° C. where the "outside air temperature OT at the time ta of the day" is less than Tb ° C. Shown. Further, in the example shown in FIG. 12, it is shown that the permissible range determination is within the permissible range when the set temperature at which the “outside air temperature OT at the time ta of the day” is Tb ° C. or higher is 22 ° C. and the set temperature is 23 ° C. .. If the set temperature is too high even during heating, or if the set temperature is too low even during cooling, it may be out of the permissible range.

FIG. 13 is a diagram showing an example of a set temperature table when the usage attribute is a score. In the example shown in FIG. 13, it is shown that the permissible range determination is out of the permissible range at the set temperatures of 20 ° C. and 21 ° C., and further at the set temperature of 22 ° C. where the score is Sb or more. Further, in the example shown in FIG. 13, it is shown that the permissible range determination is within the permissible range at the set temperature 22 ° C. and the set temperature 23 ° C. where the score is less than Sb.

In addition, FIG. 12 and FIG. 13 are examples of the set temperature table when the usage attribute is "outside temperature OT at the time ta of the day" and the score, but the same setting is performed when other usage attributes are used. The temperature table is determined.

The control value determining unit 115 calculates the optimum set temperature as a control value among the set temperatures determined to be within the allowable range stored in the set temperature table, and outputs the control value to the air conditioner 200. The optimum set temperature is the set temperature that saves the most energy among the set temperatures within the permissible range. The optimum set temperature is the minimum set temperature within the permissible range in heating. Further, the optimum set temperature is the maximum set temperature within the permissible range in cooling. Further, the optimum set temperature is the set temperature that is acceptable to the user and saves the most energy.

Next, an example of how to obtain the optimum temperature will be described.
FIG. 14 is a diagram illustrating the calculation of the optimum set temperature in the present embodiment. The example shown in FIG. 14 is an example of calculating the optimum set temperature for the set temperature tables of FIGS. 12 and 13. Note that FIGS. 12 and 13 are examples in which a single divided value is used at all set temperatures. In FIG. 14, the line indicated by the reference numeral g41 is a boundary line of the optimum set temperature.

In FIG. 12, the control value determining unit 115 has a usage attribute of "outside air temperature OT at time ta of the day" and a divided value of Tb ° C. Therefore, in FIG. 14, "outside temperature OT of time ta of the day" is Tb. In the range of ° C. or higher, 22 ° C. is determined to be the optimum set temperature, and in the range where the "outside air temperature OT at the time ta of the day" is less than Tb ° C., 23 ° C. is determined to be the optimum set temperature.
In FIG. 13, the control value determining unit 115 determines that 23 ° C. is the optimum set temperature in the range where the score is Sb or more in FIG. 14 because the utilization attribute is the score and the divided value is Sb, and the score is less than Sb. In the range of, 22 ° C. is determined to be the optimum set temperature.

Further, FIG. 14 also shows an example relating to “room temperature RT at time ta of the day” which is not explained in FIGS. 12 and 13. In this case, the control value determining unit 115 determines that 22 ° C. is the optimum set temperature in the range where the "room temperature RT at the time ta of the day" is Tc ° C. or higher, and the "room temperature RT at the time ta of the day" is Tc ° C. In the range of less than, 23 ° C. is determined to be the optimum set temperature.
As for other attributes, the optimum set temperature may differ depending on the threshold value related to the attributes, as in the case described above.

Further, in the example shown in FIG. 14, the attribute is "the outside air temperature OT at the time ta of the day" and the divided value is Tb ° C, the attribute is the score and the divided value is Sb, and the attribute is. An example is shown in which the temperature is RT at the time ta of the day and the divided value is Tb ° C., but the present invention is not limited to this. It may be another attribute, and the divided value may be either temperature or score.

The method for calculating the optimum set temperature is not limited to the above. As a method of calculating the optimum set temperature, for example, during the heating operation, a set temperature of a predetermined threshold value or more or a predetermined threshold value or less may be added as a calculation condition from the set temperature within the allowable range. Further, the optimum set temperature calculation method may be based on conditions such as the time of day, the number of users, and the installation environment of the air conditioner.

Next, the control of the control value determination unit 115 during the search execution period and the search non-execution period described with reference to FIG. 3B and the like will be described.
FIG. 15 is a diagram showing an example of a control content table for setting the control content of the control value determination unit 115 in the present embodiment. The control content table is stored in the setting information storage unit 102. The control value determination unit 115 acquires the information of the control content table stored in the setting information storage unit 102 via the instruction unit 112. If the allowable range of the set temperature is not stored in the set temperature table, the control value determination unit 115 may use the preset temperature as the optimum temperature, or implements the control content described in the control content table. It does not have to be.

In the example shown in FIG. 15, the control content table has items of period, operation mode of the air conditioner, set temperature of the air conditioner, and control content. The item of the period is set whether it is the search execution period or the search non-execution period. The entire period is a period setting that includes both the search implementation period and the search non-execution period. Heating or cooling is set as the operation mode item of the air conditioner. The set temperature of the air conditioner is set by comparing the set temperature acquired from the air conditioner 200 with the optimum temperature calculated by the control value determining unit 115. For example, the setting of higher than the optimum temperature is when the set temperature is higher than the optimum temperature. The control content item is set to be executed by the control value determining unit 115 when the conditions set in the operation mode of the air conditioner and the set temperature item of the air conditioner are met. That is, the items of the period, the operation mode of the air conditioner, and the set temperature of the air conditioner are the conditions for narrowing down when selecting the control content.

The control value determination unit 115 narrows down the items of the period based on the information acquired via the instruction unit 112 whether the current time is the search execution period or the search non-execution period. For example, when the current time is the search execution period, the control value determination unit 115 does not narrow down the control contents because the entire period and the search execution period shown in FIG. 10 correspond to each other. On the other hand, when the current time is the search non-execution period, the control value determination unit 115 narrows down the control contents according to the entire period shown in FIG. Similarly, the control value determination unit 115 acquires the current operation mode and set temperature of the air conditioner 200, and narrows down the control contents.

First, in FIG. 15, the selection condition and the control content of the first line shown by the reference numeral g51 will be described.
Since the "period" is the "whole period", the control value determination unit 115 selects either the search execution period or the search non-execution period.
Since the "operation mode of the air conditioner" is "heating", the control value determining unit 115 selects when the operation mode of the air conditioner 200 is heating.
Since the "set temperature of the air conditioner" is "higher than the optimum temperature", the control value determining unit 115 is currently in the air conditioner 200 than the optimum temperature calculated from the set temperature table of the allowable range storage unit 103. Select when the set temperature of is high.
Since the "control content" is "change to the optimum temperature", the control value determining unit 115 outputs the optimum temperature as the control value to the air conditioner 200.

When the set temperature of the air conditioner 200 is higher than the optimum temperature by the control according to the selection condition of the first line shown by the reference numeral g51, the set temperature can be changed to the optimum temperature in the whole period to realize energy saving. If the set temperature changed to the optimum temperature is unacceptable to the user, the user further changes the set temperature from the input / display device 300. The change in the set temperature is stored in the history information storage unit 101 as an event, and is reflected in the calculation of the allowable range by the allowable range calculation unit 114 at the next allowable range calculation time.

Next, in FIG. 15, the selection condition and the control content of the second line shown by the reference numeral g52 will be described.
Since the "period" is the "whole period", the control value determination unit 115 selects either the search execution period or the search non-execution period.
Since the "operation mode of the air conditioner" is "heating", the control value determining unit 115 selects when the operation mode of the air conditioner 200 is heating.
Since the "set temperature of the air conditioner" is "lower than the optimum temperature", the control value determining unit 115 is currently in the air conditioner 200 than the optimum temperature calculated from the set temperature table of the allowable range storage unit 103. Select when the set temperature of is low.
Since the "control content" is "do nothing", the control value determination unit 115 does not output the control value to the air conditioner 200.

If the set temperature of the air conditioner 200 is lower than the optimum temperature by the control according to the selection condition of the second line shown by the reference numeral g52, the energy saving state has already been achieved, and the set value is not changed. The set temperature lower than the optimum temperature set by the user is stored in the history information storage unit 101 as an event, and is reflected in the calculation of the allowable range by the allowable range calculation unit 114 at the next allowable range calculation time.

Next, in FIG. 15, the selection condition and the control content of the third line shown by the reference numeral g53 will be described.
Since the "period" is the "search execution period", the control value determination unit 115 selects the search execution period.
Since the "operation mode of the air conditioner" is "heating", the control value determining unit 115 selects when the operation mode of the air conditioner 200 is heating.
Since the "set temperature of the air conditioner" is "equal to the optimum temperature", the control value determining unit 115 uses the optimum temperature calculated from the set temperature table of the allowable range storage unit 103 and the current temperature of the air conditioner 200. Select when the set temperatures are equal.
Since the "control content" is "changed to a temperature T0 ° C. lower than the optimum temperature", the control value determining unit 115 outputs a temperature T0 ° C. lower than the optimum temperature to the air conditioner 200 as a control value.

By the control according to the selection condition on the third line shown by the reference numeral g53, the control value determining unit 115 determines whether or not the set temperature (search temperature) of the air conditioner 200, which is T0 ° C lower than the optimum temperature, is included in the permissible range. Search for. For example, if the user does not raise the set temperature to the search temperature at the set temperature, it can be estimated that the search temperature is acceptable to the user. On the other hand, when the user raises the set temperature to the search temperature at the set temperature, it can be estimated that the search temperature is unacceptable to the user. In the present embodiment, the user's acceptability at the search temperature can be calculated by measuring the set temperature duration until the event occurs. The operation (or non-operation) of the user's set temperature with respect to the search temperature is stored in the history information storage unit 101 as an event, and is reflected in the calculation of the allowable range by the allowable range calculation unit 114 at the next allowable range calculation time.

The value of T0 ° C. that sets the search temperature may be a predetermined fixed value or a variable value. For example, if the user cannot tolerate the change of T0 ° C. in the previous search execution period, the search temperature may be changed in a temperature change smaller than T0 ° C.
Further, the control based on the selection condition on the third line shown by the reference numeral g53 has described the case where the "set temperature of the air conditioner" is "equal to the optimum temperature". For example, the "set temperature of the air conditioner" is Even in the case of "higher than the optimum temperature", the control content of the third line shown by the reference numeral g53 may be executed.
Further, although FIG. 15 has described the case where the operation mode is heating, the search temperature may be set to search for energy saving similarly even when the operation mode is cooling.

Next, the arithmetic processing for air conditioning control according to the present embodiment will be described with reference to FIGS. 16 to 19. 16 to 19 are flowcharts showing an example of air conditioning control arithmetic processing in the present embodiment. In the processing shown in the flowcharts of FIGS. 16 to 19, it is assumed that the air conditioning control device 100 described later in FIG. 24 is a processor and the functional unit of the air conditioning control device 100 is executed by software. In the following description, air conditioning is performed. It will be described as being executed by the controller 100.

First, the process of FIG. 16 will be described.
The operation of the flowchart in FIG. 16 is started when the power supply of the air conditioning control device 100 is started.
(Step S101) The air conditioning control device 100 acquires the setting information stored in the setting information storage unit 102 as described in FIGS. 3A to 3G. The setting information stored in the setting information storage unit 102 is, for example, information acquired from an operation period table, a search execution period table, an allowable range calculation time table, a set temperature change time table, and an identification boundary table.

(Step S102) The air conditioning control device 100 determines whether or not it is within the operation period. The air conditioning control device 100 determines whether or not it is within the operation period based on the current time and the setting information set in the operation period table. When the air conditioning control device 100 determines that it is not within the operation period (step S102; NO), the air conditioning control device 100 ends the process of the flowchart of FIG. When the air conditioning control device 100 determines that it is within the operation period (step S102; YES), the air conditioning control device 100 proceeds to the process of step S103.

(Step S103) The air conditioning control device 100 determines whether or not it is within the search execution period. The air conditioning control device 100 determines whether or not it is within the search execution period based on the current time and the setting information set in the search execution period table. When the air conditioning control device 100 determines that it is not within the search execution period (step S103; NO), the air conditioning control device 100 proceeds to the process of step S104. When the air conditioning control device 100 determines that the search is within the search execution period (step S103; YES), the air conditioning control device 100 proceeds to the process of step S105.

(Step S104) The air conditioning control device 100 executes the search non-execution period processing. The details of the process in step S104 will be described later with reference to FIG. After the processing, the air conditioning control device 100 proceeds to the processing of step S106.

(Step S105) The air conditioning control device 100 executes the search execution period process. The details of the process in step S105 will be described later with reference to FIGS. 18 and 19. After the processing, the air conditioning control device 100 proceeds to the processing of step S106.

(Step S106) The air conditioning control device 100 determines whether or not the standby time has elapsed. The air conditioning control device 100 determines whether or not the standby time has elapsed, for example, by the elapse of the standby time that is preset in the setting information storage unit 102 to adjust the operation interval of the air conditioning control device 100. The standby time may be determined by starting the timer or the like after the process of step S104 or the process of step S105 is executed and determining the time-up of the timer. When the air conditioning control device 100 determines that the standby time has not elapsed (step S106; NO), the air conditioning control device 100 repeats the process of step S106 and waits for the standby time to elapse. When the air conditioning control device 100 determines that the standby time has elapsed (YES in step S106), the air conditioning control device 100 returns to the process of step S102 and repeats the processes of steps S102 to S106.

Next, the search non-execution period processing in step S104 of FIG. 16 will be described with reference to FIG.
(Step S201) The air conditioning control device 100 determines whether or not it is the control execution timing. The air conditioning control device 100 determines, for example, whether or not it is the control execution timing based on the current time and the set temperature change time set in the set temperature change time table. When the air conditioning control device 100 determines that it is not the control execution timing (step S201; NO), the air conditioning control device 100 ends the processing of the flowchart shown in FIG. When the air conditioning control device 100 determines that it is the control execution timing (step S201; YES), the air conditioning control device 100 proceeds to the process of step S202.

(Step S202) The air conditioning control device 100 executes the control content during the search non-execution period. Here, the control content in the search non-execution period is the process of narrowing down the control content when the item of "period" is "all period" described in FIG. More specifically, the control value determination unit 115 acquires the information of the control content table via the instruction unit 112. After the processing, the air conditioning control device 100 proceeds to the processing of step S203.

(Step S203) The air conditioning control device 100 calculates the attributes. More specifically, the control value determination unit 115 acquires the usage attribute and its division value from the division unit 113 via the instruction unit 112. Further, the control value determination unit 115 calculates the value of the usage attribute after acquiring the history information for calculating the value of the usage attribute on the day when the control content is set from the history information storage unit 101. After the processing, the air conditioning control device 100 proceeds to the processing of step S204.

(Step S204) The air conditioning control device 100 determines the optimum set temperature. More specifically, the control value determination unit 115 acquires the set temperature table stored in the permissible range storage unit 103, and is the most energy-saving among the set temperatures for which the permissible range determination is within the permissible range in the set temperature table. Acquires the set temperature as the optimum set temperature. Further, the control value determination unit 115 compares the value of the usage attribute on the day when the control content is set with the divided value, and determines the optimum temperature on the day when the control content is set. After the processing, the air conditioning control device 100 proceeds to the processing of step S205.

(Step S205) The air conditioning control device 100 acquires the operation mode and the current set temperature of the air conditioner 200. More specifically, the control value determination unit 115 acquires the operation mode and the current set temperature from the air conditioner 200. After the processing, the air conditioning control device 100 proceeds to the processing of step S206.

(Step S206) The air conditioning control device 100 calculates a control value. More specifically, the control value determination unit 115 determines the information in the control content table, the optimum set temperature determined in the process of step S205, and the operation mode and the current set temperature of the air conditioner 200 acquired in step S206. Based on this, the control value is calculated according to the control content described with reference to FIG. After the processing, the air conditioning control device 100 proceeds to the processing of step S207.

(Step S207) The air conditioning control device 100 outputs the control value to the air conditioner 200. More specifically, the control value determination unit 115 outputs the control value calculated in the process of step S205 to the air conditioner 200. The air conditioner 200 that has acquired the control value changes the set value based on the control value. After executing the process of step S207, the air conditioning control device 100 ends the process of the flowchart of FIG.

Next, the search execution period processing in step S105 of FIG. 16 will be described with reference to FIG.
(Step S301) The air conditioning control device 100 determines whether or not it is the allowable range calculation time. The air conditioning control device 100 determines whether or not it is the allowable range calculation time based on the current time and the setting information set in the allowable range calculation time table. When the air conditioning control device 100 determines that it is the allowable range calculation time (step S301; YES), the air conditioning control device 100 proceeds to the process of step S302. When the air conditioning control device 100 determines that the time is not the allowable range calculation time (step S301; NO), the air conditioning control device 100 proceeds to the process of step S306.

(Step S302) The air conditioning control device 100 acquires the set value history information and the environment value history information. More specifically, the division unit 113 acquires the set value history information and the environment value history information stored in the history information storage unit 101 described with reference to FIG. After the processing, the air conditioning control device 100 proceeds to the processing of step S303.

(Step S303) The air conditioning control device 100 divides the set value history information according to the divided values. More specifically, the division unit 113 calculates the value of the usage attribute from the set value history information and the environment value history information acquired in step S302, and determines the division value. Further, the division unit 113 divides the set value history information according to the determined division value. After the processing, the air conditioning control device 100 proceeds to the processing of step S304.

(Step S304) The air conditioning control device 100 calculates an allowable range. More specifically, the permissible range calculation unit 114 calculates the set temperature duration described in FIG. 6 (D) based on the set value history information divided by the divided values of the usage attributes in step S303, and is shown in FIG. 8 (A). Alternatively, after modeling the survival function of the set temperature described in FIG. 10 (A) with a Weibull distribution, the feature amount described in FIG. 8 (B) or FIG. 10 (B) is calculated. The permissible range calculation unit 114 calculates the permissible range described with reference to FIG. 9 or 11 based on the calculated feature amount and the predetermined identification boundary line. After the processing, the air conditioning control device 100 proceeds to the processing of step S305.

(Step S305) The air conditioning control device 100 stores an allowable range. More specifically, the permissible range calculation unit 114 generates the set temperature table described with reference to FIGS. 12 and 13 based on the permissible range calculated in the process of step S304, and stores it in the permissible range storage unit 103. After the processing, the air conditioning control device 100 proceeds to the processing of step S306.

(Step S306) The air conditioning control device 100 executes the control process. After executing the process of step S306, the air conditioning control device 100 ends the process of the flowchart of FIG.

Next, the search execution period processing of step S306 of FIG. 18 will be described with reference to FIG.
(Step S401) The air conditioning control device 100 determines whether or not it is the control execution timing. The air conditioning control device 100 determines whether or not it is the control execution timing based on the current time and the set temperature change time set in the set temperature change time table. When the air conditioning control device 100 determines that it is not the control execution timing (step S401; NO), the air conditioning control device 100 ends the process of the flowchart of FIG. When the air conditioning control device 100 determines that it is the control execution timing (step S401; YES), the air conditioning control device 100 proceeds to the process of step S402.

(Step S402) The air conditioning control device 100 executes the control content during the search execution period. Here, the control content in the search execution period is a process of narrowing down the control content when the item of the “period” described in FIG. 15 is the “search execution period”. More specifically, the control value determination unit 115 acquires the information of the control content table via the instruction unit 112. After the processing, the air conditioning control device 100 proceeds to the processing of step S403.

(Step S403) The air conditioning control device 100 calculates the attributes. More specifically, the control value determination unit 115 acquires the usage attribute and its division value from the division unit 113 via the instruction unit 112. Further, the control value determination unit 115 obtains the value of the usage attribute after acquiring the history information for calculating the value of the usage attribute on the day when the control content is set from the history information storage unit 101. After the processing, the air conditioning control device 100 proceeds to the processing of step S404.

(Step S404) The air conditioning control device 100 determines the optimum set temperature. More specifically, the control value determination unit 115 acquires the set temperature table stored in the permissible range storage unit 103, and is the most energy-saving among the set temperatures for which the permissible range determination is within the permissible range in the set temperature table. Acquires the set temperature as the optimum set temperature. Further, the control value determination unit 115 compares the value of the usage attribute on the day when the control content is set with the divided value, and determines the optimum temperature on the day when the control content is set. After the processing, the air conditioning control device 100 proceeds to the processing of step S405.

(Step S405) The air conditioning control device 100 acquires the operation mode and the current set temperature of the air conditioner 200. More specifically, the control value determination unit 115 acquires the operation mode and the current set temperature from the air conditioner 200. After the processing, the air conditioning control device 100 proceeds to the processing of step S406.

(Step S406) The air conditioning control device 100 calculates a control value. More specifically, the control value determination unit 115 determines the information in the control content table, the optimum set temperature determined in the process of step S404, and the operation mode and the current set temperature of the air conditioner 200 acquired in step S405. Based on this, the control value is calculated according to the control content described with reference to FIG. After the processing, the air conditioning control device 100 proceeds to the processing of step S407.

(Step S407) The air conditioning control device 100 outputs the control value to the air conditioner 200. More specifically, the control value determination unit 115 outputs the control value calculated in the process of step S406 to the air conditioner 200. The air conditioner 200 that has acquired the control value changes the set value based on the control value. After executing the process of step S407, the air conditioning control device 100 ends the process of the flowchart of FIG.

As described above, according to the present embodiment, it is possible to achieve both the acceptability of the set value and the energy saving while considering the influence of the environment on the set value and the history information acquisition unit. The acceptability of the set value is whether or not it is within the allowable range of the user.
Further, according to the present embodiment, since the environmental value is acquired from the environmental value acquisition device 400 and used, the influence of the space targeted by the air conditioner 200 and the external environment can be reduced.

(Second Embodiment)
Next, an example in which the detection result of the user in the detection unit 201 of FIG. 1 is reflected in the calculation of the allowable range and the calculation of the control value will be described with reference to FIGS. 20 to 22. The configuration of the air conditioning control system 1 is the same as that in FIG.

FIG. 20 is a diagram showing an example of the detection result of the user in the detection unit 201 in the present embodiment. The detection result of the user is stored in the history information storage unit 101 in the same manner as the set value history information described with reference to FIG. Further, the detection result of the user is acquired by the control value determination unit 115 and stored in the history information storage unit 101. As shown in FIG. 20, the detection result of the user includes the detection time and the detection result (reaction result). The history information storage unit 101 assigns a time when the reaction result is acquired from the air conditioner 200 based on the time output by the time measuring unit 116. In the reaction result, 1 indicates that the user has been detected, and 0 indicates that the user has not been detected.

FIG. 21 is a diagram showing another example of the calculation method of the set temperature duration executed by the dividing unit 113 described in FIG. FIG. 21A shows the set value history information stored in the history information storage unit 101, similarly to FIG. 6A. FIG. 21B shows the detection history of the user's detection result. Further, FIG. 21 (C) is a relationship diagram of the set temperature duration and the event value calculated based on the set value history information and the detection history of FIGS. 21 (A) and 21 (B). Unlike FIG. 6 (D), the attribute value is not shown in FIG. 21 (C), but it is assumed that the attribute value is actually calculated.

As shown in FIG. 21, in the modified example, the set temperature duration is calculated only during the period in which the user is detected. When the user is absent, the set temperature is not changed by the user, so it may not be appropriate to evaluate it as the set temperature duration. In FIG. 21 (C), the set temperature duration is determined as (t1'-t1) and (t4-t2') at 22 ° C. The value of the event during the period in which the user is detected is the same as in the first embodiment. On the other hand, the value of the state (event) is set to 0 when the user is no longer detected. Therefore, the value of the event at the set temperature duration (t1'-t1) is 0, and the value of the event at the set temperature duration (t4-t2') is 1. From the above, the permissible range calculation unit 114 can calculate the permissible range in consideration of the detection result of the user.

FIG. 22 is a diagram showing another example of the control content table in the present embodiment.
FIG. 22 shows the control content described with reference to FIG. 15 on the condition that the detection result of the user is detected by the detection unit 201. FIG. 22 shows the control content that outputs the search temperature as a control value only when the user is detected during the search execution period. When the user is absent, the user does not change the set temperature, so that the user's acceptability at the search temperature cannot be correctly determined. In FIG. 22, a more accurate search within the permissible range becomes possible by subjecting the detection of the user to the control content during the search execution period.

For example, the selection condition and the control content of the third line shown by the reference numeral g61 in FIG. 22 will be described.
Since the "period" is the "search execution period", the control value determination unit 115 selects the search execution period.
Since the "operation mode of the air conditioner" is "heating", the control value determining unit 115 selects when the operation mode of the air conditioner 200 is heating.
Since the "set temperature of the air conditioner" is "equal to the optimum temperature", the control value determining unit 115 uses the optimum temperature calculated from the set temperature table of the allowable range storage unit 103 and the current temperature of the air conditioner 200. Select when the set temperatures are equal.
Since the "detection result" of the "detection unit" is "existing (exists)" and the "control content" is "changed to a temperature T0 ° C. lower than the optimum temperature", the control value determining unit 115 is set to the air conditioner 200. On the other hand, a temperature T0 ° C. lower than the optimum temperature is output as a control value.

When a user is present by the control according to the selection condition on the third line shown by the reference numeral g61, the control value determining unit 115 determines that the set temperature of the air conditioner 200 is T0 ° C lower than the optimum temperature (search). Investigate whether temperature) is within the permissible range. For example, if the user does not raise the set temperature to the search temperature at the set temperature, it can be estimated that the search temperature is acceptable to the user. On the other hand, when the user raises the set temperature to the search temperature at the set temperature, it can be estimated that the search temperature is unacceptable to the user. In the present embodiment, the user's acceptability at the search temperature can be calculated by measuring the set temperature duration until the event occurs. Also in this embodiment, the operation (or non-operation) of the user's set temperature with respect to the search temperature is stored in the history information storage unit 101 as an event, and the allowable range calculated by the allowable range calculation unit 114 at the next allowable range calculation time. It is reflected in the calculation.

As described above, according to the present embodiment, control can be performed according to the presence or absence of users, so that more energy-saving operations can be performed.

In the first embodiment and the second embodiment, the configuration of the air conditioning control system 1 has been described with reference to FIG. 1, but the configuration and arrangement of the air conditioning control system 1 are not limited to this.
An arrangement example and a configuration example of the air conditioning control device 100 in the air conditioning control system will be described with reference to FIG. FIG. 23 is a diagram showing an arrangement example and a configuration example of the air conditioning control system 1A according to the present embodiment. In the example shown in FIG. 23, it is also an example including three environmental value acquisition devices 400 (environmental value acquisition devices 401 to 403).

In the example shown in FIG. 23, the building air conditioning control system 500 is arranged in the office building 501 and the management room 502 of the office building. An air conditioner 200, an input / display device 300, and a local controller 210 are arranged in the office 501, and a BEMS (Building Energy Management System) server 150 is arranged in the control room 502. It is assumed that the user is in the office 501. The environment value acquisition device 401 is installed in the office 501.

The input / display device 300 is, for example, a remote controller installed in the office 501. The input / display device 300 may be a website or a smartphone application that allows the user to change the set temperature of the air conditioner 200.

The BEMS server 150 is a server that manages power consumption in a building, controls power saving, and the like. Each function of the air conditioning control device 100 described with reference to FIG. 1 can be realized by, for example, a software function. Therefore, by operating the software that realizes each function of the air conditioning control device 100 on the BEMS server 150, the air conditioning control device 100 can be realized on the BEMS server 150. The configuration example shown in FIG. 23 is an arrangement example in which each function of the air conditioning control device 100 is realized by the BEMS server 150 and the air conditioner 200 arranged in the office 501 is controlled.
The environment value acquisition device 402 is installed outside the building, is connected to the BEMS server 150, and outputs the acquired value to the BEMS server 150.

The local controller 210 connects the BEMS server 150 located in the control room 502 and the air conditioner 200 located in the office 501 so as to be able to communicate wirelessly or by wire. The local controller 210 is, for example, a dedicated microcomputer device, a general-purpose computer device such as a desktop PC (personal computer), a network device such as a router, or the like.

As shown in FIG. 23, by arranging only the minimum necessary equipment in the office 501 and arranging resources such as the air conditioning control device 100 in the control room 502 or the like, the availability, maintainability, or maintenance of the air conditioning control device 100 can be achieved. It is possible to improve the confidentiality.

The BEMS server 150 is connected to the environment value acquisition device 402, another building air conditioning system 600, and the cloud server 650 via the external network 550. The cloud server 650 is a virtual computer system realized by cloud computing. The BEMS server 150 may control another building air conditioning system via the external network 550. Alternatively, the cloud server 650 may share some functions of the BEMS server 150.

Each function of the air conditioning control device 100 may be realized by combining a plurality of functions into one functional unit, or may be realized by dividing one function into a plurality of functions. For example, a part or all of each function of the air conditioning control device 100 may be realized by the local controller 210, the cloud server 650, or another building air conditioning system 600. Further, a part or all of each function of the air conditioning control device 100 may be realized by a hardware function. The hardware function may also be realized by the BEMS server 150, the local controller 210, or the cloud server 650.

Further, FIG. 23 illustrates a case where the air conditioning control device 100 is realized in a system including a BEMS server 150 that manages the amount of electric power used in the building, but the air conditioning control device 100 is in the energy control system (EMS). It can also be realized in other applications. For example, the air conditioning control device 100 is a home energy management system HEMS (Home Energy Management System), a factory energy management system FEMS (Factory Energy Management System), and an energy management system in a predetermined area. It may be realized by a system including CEMS (Cruster / Community Energy Management System) and the like.

In each of the above embodiments, the air conditioning control device 100 is a software function unit, but it may be a hardware function unit such as an LSI.
FIG. 24 is a block diagram showing a hardware configuration example in which the air conditioning control device 100 according to the present embodiment is realized. The air conditioning control device 100 includes a processor 701, a main storage device 702, an auxiliary storage device 703, a network interface 704, a device interface 705, an input device 706, and an output device 707, and these are computer devices connected via a bus 708. Can be realized as. An air conditioner 200 is connected to the network interface 704. Further, the external storage medium 900 may be connected to the air conditioning control device 100. The external storage medium 900 is, for example, an HDD (Hard Disk Drive), an SSD (Solid State Drive), or the like.

Each function can be realized by the processor 701 reading a program from the auxiliary storage device 703, deploying it to the main storage device 702, and executing the program.

In each of the above-mentioned examples, an example in which each functional unit calculates a set value has been described, but the present invention is not limited to this. Each functional unit may obtain each value by using, for example, a table.

According to at least one embodiment described above, by having a history information acquisition unit, a division unit, a permissible range calculation unit, and a control value determination unit, setting is performed while considering the influence of the environment on the set value. It is possible to achieve both value tolerance and energy saving. Further, according to the present embodiment, since the environmental value is acquired from the environmental value acquisition device 400 and used, the influence of the space targeted by the air conditioner 200 and the external environment can be reduced.

All or part of the air conditioning control system 1 (or 1A) described above may be realized by a computer. In that case, a program for realizing the function of each functional block is recorded on a computer-readable recording medium. It may be realized by loading the program recorded on the recording medium into a computer system and executing it by a CPU (Central Processing Unit). The term "computer system" as used herein includes hardware such as an OS (Operating System) and peripheral devices. Further, the “computer-readable recording medium” refers to a portable medium such as a flexible disk, a magneto-optical disk, a ROM (Read Only Memory), or a CD-ROM. Further, the "computer-readable recording medium" includes a storage device such as a hard disk built in a computer system. Further, the "computer-readable recording medium" may include a medium that dynamically holds the program for a short period of time. What dynamically holds the program for a short period of time is, for example, a communication line when the program is transmitted via a network such as the Internet or a communication line such as a telephone line. Further, the "computer-readable recording medium" may include a medium that holds a program for a certain period of time, such as a volatile memory inside a computer system serving as a server or a client. Further, the above program may be for realizing a part of the above-mentioned functions. Further, the above-mentioned program may be realized by combining the above-mentioned functions with a program already recorded in the computer system. Further, the above program may be realized by using a programmable logic device. The programmable logic device is, for example, an FPGA (Field Programmable Gate Array).

Further, each function of the above-mentioned device can be realized by a software function. However, some or all of the functions of the above-mentioned devices may be realized by hardware functions. Further, each function of the above-described device may be realized by collectively realizing a plurality of functions as one functional unit, or may be realized by dividing one function into a plurality of functions.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, as well as in the scope of the invention described in the claims and the equivalent scope thereof.

1,1A ... Air conditioning control system, 100 ... Air conditioning control device, 101 ... History information storage unit, 102 ... Setting information storage unit, 103 ... Allowable range storage unit, 111 ... History information acquisition unit, 112 ... Indicator unit, 113 ... Division Unit, 114 ... Allowable range calculation unit, 115 ... Control value determination unit, 116 ... Measuring unit, 150 ... BEMS server, 200 ... Air conditioner, 201 ... Detection unit, 202 ... Control unit, 203 ... Communication unit, 210 ... Local Controller, 300 ... Input / display device, 301 ... Display unit, 302 ... Input unit, 400, 401, 402, 403 ... Environment value acquisition device, 500 ... Building air conditioning control system, 501 ... Office, 502 ... Management room, 550 ... external network, 600 ... other building air conditioning system, 650 ... cloud server, 701 ... processor, 702 ... main memory, 703 ... auxiliary storage, 704 ... network interface, 705 ... device interface, 706 ... input device, 707 ... Output device, 708 ... Bus, 900 ... External storage medium

Claims (9)

A history information acquisition unit that acquires set value history information related to set values set for an air conditioner and environmental value history information related to environmental values.
A division unit that divides the set value history information based on the attribute obtained from the environment value history information, and
Based on the divided set value history information, the permissible range calculation unit for obtaining the permissible range of the set value, and
A control value determining unit that determines a control value to be output to the air conditioner based on the allowable range, the attribute, and the set value.
With
The divided portion
A plurality of threshold values of the attributes, by dividing the duration to be calculated based on a detection history and the set value history information, and the range is less likely to the setting value is changed by the user of the air conditioner Calculate the division value divided into the high range and
The permissible range calculation unit
Based on the set value, the divided value, and the duration , a plurality of feature amounts for each combination of the set value and the range of the value of the attribute divided by the divided value are calculated, and the plurality of the calculated features are calculated. Calculate the allowable range of the set value based on the amount ,
The detection history is a history of detection results of whether or not the user exists.
The duration is a time that is continued without changing the set value by the user.
Air conditioning controller. The air conditioning control device according to claim 1, wherein the divided portion utilizes the outside air temperature as the attribute. The air conditioning control device according to claim 1, wherein the divided portion utilizes room temperature as the attribute. The control value determining unit changes the control value out of the allowable range in a preset search execution period for executing the search in the allowable range, any one of claims 1 to 3. The air conditioning control device described in. The air conditioning control device according to any one of claims 1 to 4 , wherein the permissible range calculation unit obtains the permissible range at a preset timing for calculating the permissible range. The air conditioning control device according to any one of claims 1 to 5 , wherein the permissible range calculation unit obtains the permissible range at a preset timing for outputting the calculated control value. The air-conditioning control device according to any one of claims 1 to 6 , wherein the control value determining unit determines a control value to be output to the air-conditioning device based on a detection result of a user of the air-conditioning device. .. A history information acquisition step in which the history information acquisition unit acquires the setting value history information regarding the setting value set for the air conditioner and the environment value history information regarding the environment value.
A division step in which the division unit divides the set value history information based on the attribute obtained from the environment value history information.
The permissible range calculation unit obtains the permissible range of the set value based on the divided history information of the set value, and the permissible range calculation step.
A control value calculation step in which the control value determining unit determines a control value to be output to the air conditioner based on the allowable range, the attribute, and the set value.
Including
In the division step,
A plurality of threshold values of the attributes, by dividing the duration to be calculated based on a detection history and the set value history information, and the range is less likely to the setting value is changed by the user of the air conditioner Calculate the division value divided into the high range and
In the tolerance calculation step,
Based on the set value, the divided value, and the duration , a plurality of feature amounts for each combination of the set value and the range of the value of the attribute divided by the divided value are calculated, and the plurality of the calculated features are calculated. Calculate the allowable range of the set value based on the amount ,
The detection history is a history of detection results of whether or not the user exists.
The duration is a time that is continued without changing the set value by the user.
Air conditioning control method. For the computer of the air conditioning controller,
History information acquisition process for acquiring the set value history information related to the set value set for the air conditioner and the environment value history information related to the environment value,
A division process that divides the set value history information based on the attribute obtained from the environment value history information, and
Based on the divided set value history information, the allowable range calculation process for obtaining the allowable range of the set value, and the allowable range calculation process.
A control value calculation process for determining a control value to be output to the air conditioner based on the permissible range, the attribute, and the set value.
To execute,
In the division process,
A plurality of threshold values of the attributes, by dividing the duration to be calculated based on a detection history and the set value history information, and the range is less likely to the setting value is changed by the user of the air conditioner Calculate the division value divided into the high range and
In the permissible range calculation process,
Based on the set value, the divided value, and the duration , a plurality of feature amounts for each combination of the set value and the range of the value of the attribute divided by the divided value are calculated, and the plurality of the calculated features are calculated. Calculate the allowable range of the set value based on the amount ,
The detection history is a history of detection results of whether or not the user exists.
The duration is a time that is continued without changing the set value by the user.
Air conditioning control program.

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