Air conditioning system, air conditioning system control methods and control programs

Abstract

This disclosure provides an air conditioning system that can automatically control the set temperature of an air conditioning device according to a scheme. The air conditioning system disclosed herein uses an air conditioning device to air-condition a space. The air conditioning system includes: an automatic control unit that automatically controls the set temperature of the air conditioning device; and a management unit that manages the service plan related to the air conditioning device in the user's contract. The automatic control unit performs the following actions: when the plan managed by the management unit is the first plan, it generates both a first period during which the automatic control is performed and a second period during which the automatic control is not performed; when the plan managed by the management unit is the second plan, which is different from the first plan, it generates a first period that is longer than the first plan.

Description

Air conditioning system, control method and program for air conditioning system The present disclosure relates to an air conditioning system, a control method for the air conditioning system, and a program. Patent Document 1 discloses a technique for controlling the set temperature of an air conditioner to change in stages in response to changes in the external air temperature. Prior Art Documents Patent Documents Patent Document 1: Japanese Patent Application Laid-Open No. 2005-061716 Problems to be Solved by the Invention The present disclosure provides an air conditioning system, a control method for the air conditioning system, and a program that can automatically control the set temperature of an air conditioning device according to a plan. Means for Solving the Problems The air conditioning system in the present disclosure air-conditions an air-conditioned space by means of an air conditioning device. The air conditioning system includes: an automatic control unit that automatically controls the set temperature of the air conditioning device; and a management unit that manages a plan for a service related to the air conditioning device contracted with a user. The automatic control unit performs the following operations: When the plan managed by the management unit is a first plan, both a first period in which the automatic control is performed and a second period in which the automatic control is not performed are generated. When the plan managed by the management unit is a second plan different from the first plan, a first period longer than the first plan is generated. Furthermore, the control method for the air conditioning system in the present disclosure air-conditions an air-conditioned space by means of an air conditioning device. The control method for the air conditioning system causes a computer of the air conditioning system to perform the following operations: When the plan for the service related to the air conditioning device contracted with a user is a first plan, both a first period and a second period are generated. The first period is a period in which the set temperature of the air conditioning device is automatically controlled, and the second period is a period in which the automatic control is not performed. When the plan contracted by the user is a second plan different from the first plan, a first period longer than the first plan is generated. Further, the program in the present disclosure causes a computer of an air conditioning system that air-conditions an air-conditioned space by means of an air conditioner to function as an automatic control unit that automatically controls the set temperature of the aforementioned air conditioner. The aforementioned automatic control unit performs the following operations: When the plan of the service related to the aforementioned air conditioner in the contract with the user is the first plan, both a first period in which the aforementioned automatic control is performed and a second period in which the aforementioned automatic control is not performed are generated. When the plan in the user's contract is a second plan different from the first plan, a first period longer than the first plan is generated. Furthermore, the entire content of Japanese Patent Application No. 2023-170024, which was filed on September 29, 2023, is included in this specification. Effects of the Invention In the air conditioning system, control method, and program of the present disclosure, when the plan in the user's contract is the first plan, the set temperature of the air conditioner can be automatically controlled in a shorter period than the second plan. When the plan in the user's contract is a second plan different from the first plan, the set temperature of the air conditioner can be automatically controlled in a longer period than the first plan. Accordingly, the automatic control of the set temperature of the air conditioner can be performed in accordance with the plan. Modes for Carrying Out the Invention (Basic knowledge and insights, etc. that form the basis of the present disclosure) When the inventors came up with the present disclosure, there was a technology for automatically controlling the set temperature of an air conditioner in such a way that the set temperature of the air conditioner changes in response to changes in the outside air temperature. Incidentally, in recent years, services related to air conditioners have been under discussion. However, when incorporating the automatic control of the set temperature into this service, a mechanism that can perform automatic control of the set temperature in accordance with the plan may be required. The inventors found the problem that there was no such mechanism in the past, and thus, in order to solve this problem, they finally arrived at the subject matter of the present disclosure. Therefore, the present disclosure provides an air conditioning system, a control method for an air conditioning system, and a program that can perform automatic control of the set temperature of an air conditioner in accordance with the plan. Hereinafter, the embodiments will be described in detail with reference to the drawings. However, sometimes detailed descriptions that are unnecessary will be omitted. For example, sometimes detailed descriptions of well-known matters or repeated descriptions of substantially the same configurations will be omitted. Furthermore, the attached drawings and the following description are provided to enable those of ordinary skill in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims by these. (Embodiment 1) [1-1. Configuration] [1-1-1. Configuration of the air conditioning system] FIG. 1 is a diagram showing the configuration of the air conditioning system 1000. The air conditioning system 1000 is a system that air-conditions the conditioned space S by means of the air conditioner 1. Examples of the air conditioning of the conditioned space S include cooling, heating, dehumidification, air supply, and ventilation. In the present embodiment, the case where the conditioned space S is air-conditioned for cooling operation and heating operation by means of the air conditioner 1 will be described. The conditioned space S is a space possessed by the facility H and is a space air-conditioned by the air conditioner 1. Furthermore, examples of the facility H include a house, an office, a store, a medical facility, and a public facility. The air conditioning system 1000 includes the air conditioner 1. In FIG. 1, the air conditioning system 1000 includes four or more air conditioners 1. Furthermore, the number of air conditioners 1 included in the air conditioning system 1000 is not limited to four or more and may be less than four. The air conditioner 1 includes an indoor unit 11 and an outdoor unit 12, and performs air conditioning operation by means of the indoor unit 11 and the outdoor unit 12, thereby air-conditioning the conditioned space S where the indoor unit 11 is installed. The air conditioner 1 is connected to the network NW and communicates with machines connected to the network NW. The network NW is a communication network composed of a public line, a dedicated line, the Internet, or other communication networks. The air conditioning system 1000 includes the terminal device 2. The terminal device 2 is a terminal used by the user P. In the present embodiment, the user P refers to a user of a service related to the air conditioner 1 described later. Examples of the user P include a manager who manages the facility H. Furthermore, the user P is not limited to a person and may also be a subject having the management authority of the facility H (for example, a company that operates the facility H). Although the terminal device 2 shown in FIG. 1 is a laptop computer, it may also be a tablet computer, a desktop computer, or a smart phone. The terminal device 2 is connected to the network NW. The terminal device 2 displays information related to the air conditioner 1 for each facility H. The air conditioning system 1000 includes the management server 3. The management server 3 is a server device that manages the air conditioner 1. The management server 3 is connected to the network NW and performs information processing with the air conditioner 1 and the terminal device 2 as clients. Furthermore, the management server 3 may be a server device owned by the user P or may not be a server device owned by the user P. The management server 3 provides services related to the air conditioner 1. In the following description, the services related to the air conditioner 1 will be appropriately abbreviated as "services". In the present embodiment, a first plan and a second plan that is more expensive than the first plan are prepared in the services. The first plan is a plan where the monthly usage fee is α yen. For example, the first plan is a plan where it is 500 yen per month and per system. Among the services that can be received according to the first plan, it includes: setting the functions of the air conditioner 1 for the purpose of quantifying energy consumption, or confirming the history of the set temperature of the air conditioner 1, and a trial of the automatic control of the set temperature of the air conditioner 1, etc. In the following description, the automatic control of the set temperature of the air conditioner 1 is appropriately abbreviated as "automatic control". The trial of the automatic control is carried out when the user P requests a trial of the automatic control. Furthermore, in this embodiment, the period of the trial of the automatic control is at most 1 year starting from when the user P requests the trial of the automatic control. Furthermore, this period of the trial is only an example, and it can be less than the maximum of 1 year, or it can be more than the maximum of 1 year, or it can be changeable. During the trial of the automatic control, during the period of the trial, a first period of performing the automatic control and a second period of not performing the automatic control are alternately generated. Although it can be appropriately determined how to switch between the first period and the second period, in the following description, as an example, it is described as a configuration that switches every 1 week. Furthermore, during the second period, the set temperature of the air conditioner 1 is set by the remote controller 13. One week is an example of the "predetermined period". The second plan is a plan where the monthly fee is β (β > α) yen. For example, the second plan is a plan where it is 1000 yen per month and per system. Among the services that can be received according to the second plan, it includes: setting the functions of the air conditioner 1 for the purpose of quantifying energy consumption, or confirming the history of the set temperature of the air conditioner 1, and the automatic control of the set temperature of the air conditioner 1, etc. In the second plan, the automatic control can be performed. That is, in the second plan, only the first period is generated and the second period is not generated. That is, as long as the user P continues to sign the second plan, the set temperature of the air conditioner 1 will continue to be automatically controlled. Accordingly, in the case where it is assumed that the contract is signed for a period longer than 1 week, the second plan will result in a first period longer than that of the first plan. By preparing 2 kinds of plans like this, when the user P finds the automatic control attractive, the second plan can be selected, and when there is resistance to the method of selecting the automatic control, the first plan can be selected to try the automatic control. The air conditioning system 1000 is equipped with a weather server 4. The weather server 4 is a server device that provides services of providing weather data. Among the weather data provided by the server, it at least includes the forecast value of the outside air of the facility H. Furthermore, in each figure, although the management server 3 and the weather server 4 are each represented by one block, this does not necessarily mean that the management server 3 and the weather server 4 are constituted by a single device. For example, the management server 3 and the weather server 4 may also be constituted by a plurality of server devices with different processing contents, or may be constituted by the same server device. [1-1-2. Configuration of the air conditioner] Referring to FIG. 1, the configuration of the air conditioner 1 will be described. The air conditioner 1 includes an indoor unit 11, an outdoor unit 12, a remote controller 13, and a communication device 14. Furthermore, the number of the indoor unit 11 and the outdoor unit 12 included in the air conditioner 1 may also be plural. The indoor unit 11 and the outdoor unit 12 are connected by a refrigerant pipe and a control wiring. Thereby, in the air conditioner 1, a refrigerant cycle can be constituted by the indoor unit 11 and the outdoor unit 12. The remote controller 13 is provided on the wall surface of the air-conditioned space S or the like. The remote controller 13 includes a plurality of operation buttons for the user of the air conditioner 1 to perform start or stop operations, menu operations, cursor key operations, etc. for operation. Also, the remote controller 13 includes a display panel for displaying, for example, the set temperature of the air conditioner 1 or the operation state of the indoor unit 11. The communication device 14 is a device connected to the network NW and communicating with the management server 3. Also, the communication device 14 may be a device for controlling each part of the air conditioner 1. The communication device 14 sends operation data RD to the management server 3 every time there is a change in the set temperature of the air conditioner 1. The operation data RD is data indicating that a change operation of the set temperature has been accepted. The operation data RD records an air conditioner ID (Identification), a change date and time, an air conditioner type, a set temperature before change, and a set temperature after change. The air conditioner ID is identification information of the air conditioner 1. The change date and time is the date and time when the set temperature of the air conditioner 1 has been changed. The air conditioner type is the type of air conditioning being performed by the air conditioner 1, and in this embodiment, it shows cooling or heating. The set temperature before change is the set temperature of the air conditioner 1 before change. The set temperature after change is the set temperature of the air conditioner 1 after change. The communication device 14 receives setting data SD from the management server 3. The setting data SD is data for instructing the setting of the set temperature of the air conditioner 1, and records the set temperature to be set in the air conditioner 1. The communication device 14 operates the air conditioner 1 at the set temperature recorded in the received setting data SD. [1-1-3. Configuration of Management Server] Figure 2 is a diagram showing the configuration of the management server 3. The management server 3 includes a server control device 30 and a server communication device 31. The server control device 30 is an example of a "computer". The server control device 30 includes a server processor 300 such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit), a server memory 310, and an interface circuit for connecting other devices or sensors. The server memory 310 is a memory for storing programs or data. The server memory 310 stores a control program 311, a first management DB (database) 312, a second management DB 313, and data that can be processed by the server processor 300. The server memory 310 has a non-volatile memory area. Also, the server memory 310 may include a volatile memory area to form the working area of the server processor 300. The server memory 310 is constituted by, for example, a ROM (Read Only Memory) or a RAM (Random Access Memory). The control program 311 is an example of a "program". The first management DB 312 is a database for managing data related to the air conditioner 1. The management DB 312 has one record R1 for each air conditioner 1. In one record R1, an air conditioner ID, communication information, the location of the facility H, the type of air conditioner, the current set temperature, the first management data MD1, and the second management data MD2 are recorded. The communication information is information for communicating with the air conditioner 1, such as the address information of the communication device 14. The location of the facility H is the location of the facility H where the air conditioner 1 is installed, such as the address of the facility H. The current set temperature is the set temperature set in the air conditioner 1. The first management data MD1 is data for managing information related to the change in the set temperature of the air conditioner 1 during cooling. The second management data MD2 is data for managing information related to the change in the set temperature of the air conditioner 1 during heating. Hereinafter, when the first management data MD1 and the second management data MD2 are not distinguished, the symbol "MD" is attached and expressed as "management data MD". Figure 3 is a diagram showing an example of the first management data MD1. In the first management data MD1, time periods at 1-hour intervals from 0:00 to 23:59 are recorded. More specifically, in the first management data MD1, for each of the time periods from 0 o'clock to 23 o'clock, the time period from N:00 to N:59 is recorded. Furthermore, N is an integer from 0 to 23. Further, in the first management data MD1, a plurality of external air temperatures are recorded at an interval of 1°C. The range of the external air temperature recorded in the first management data MD1 at least includes the range of the temperature that the external air of the facility H may become. Furthermore, the range of the external air temperature recorded in the first management data MD1 may be set to the same range regardless of the location of the facility H, or may be set to different ranges according to the location of the facility H. The first management data MD1 records one set of collected data AD for a combination of one time period and one external air temperature. The collected data AD is data having information related to the actual record of the change in the set temperature of the air conditioning device 1. The collected data AD is data for collecting various data within a predetermined range of the set temperature. The set temperature to be set in the air conditioning device 1 can be determined from the predetermined range of the set temperature shown in the collected data AD through the processing of the flowchart described later. The collected data AD records a plurality of set temperatures of the air conditioning device 1 at an interval of 1°C within a predetermined range. In the example of FIG. 3, 23°C, 24°C, 25°C, 26°C, and 27°C are recorded in the collected data AD. That is, in the example of FIG. 3, the predetermined range of the set temperature shown in the collected data AD is the range of 23°C to 27°C. In the collected data AD, for each of the recorded set temperatures, the actual record number, the change number, and the change probability are recorded. In the example of FIG. 3, in the collected data AD, the actual record number, the change number, and the change probability are recorded for each of 23°C, 24°C, 25°C, 26°C, and 27°C. The actual record number indicates the number of times the corresponding set temperature has been set in the air conditioning device 1. The change number indicates the number of times the corresponding set temperature has been changed to another set temperature. The change probability indicates the probability that the corresponding set temperature has been changed to another set temperature. The change probability is a probability calculated by dividing the corresponding change number by the corresponding actual record number. FIG. 4 is a diagram showing an example of the second management data MD2. The second management data MD2 has a different predetermined range of the set temperature shown in the recorded collected data AD compared to the first management data MD1. The collected data AD recorded in the first management data MD1 has a predetermined range of the set temperature in the range of 23°C to 27°C. In contrast, the collected data AD recorded in the second management data MD2 has a predetermined range of the set temperature in the range of 18°C to 23°C. Referring back to the description of FIG. 2, the second management DB 313 is a database that manages data related to the plan of the service contracted by user P. The second management DB 313 has one record R2 for each facility H. In one record R2, the facility ID, one or more air conditioner IDs, the contracted plan, the trial execution status, the trial start date, the switching date, and the automatic control execution status are recorded. The facility ID is the identification information of the facility H. The contracted plan is the plan contracted by user P, which represents the first plan or the second plan in this embodiment. The trial execution status is the data recorded when the corresponding contracted plan represents the first plan, and indicates whether the trial of automatic control is in progress. The trial start date is the data recorded when the corresponding trial execution status shows that the trial is in progress, and shows the start date of the trial of automatic control. The switching date is the data memorized when there is a corresponding trial execution showing that the trial is in progress, and shows the date of switching from the first period to the second period, or the date of switching from the second period to the first period. The automatic control execution status is the data recorded when the corresponding trial execution status shows that the trial is in progress, and shows whether the automatic control is in progress. The server communication device 31 includes hardware such as a communication circuit according to a predetermined communication specification, and communicates with the air conditioning device 1, the terminal device 2, and the weather server 4 under the control of the server control device 30. The server processor 300 functions as a communication control unit 301, an acquisition unit 302, an update unit 303, an automatic control unit 304, and a management unit 305 by reading and executing the control program 311 stored in the server memory 310. The communication control unit 301 communicates with the air conditioning device 1, the terminal device 2, and the weather server 4 through the server communication device 31. The acquisition unit 302 acquires the outside air temperature. The acquisition unit 302 takes one record R1 as the processing target and acquires the outside air temperature based on the record R1 of the processing target. Specifically, the acquisition unit 302 generates forecast value requirement information based on the record R1 of the processing target and outputs the generated forecast value requirement information to the communication control unit 301. The forecast value requirement information refers to the information that requests the forecast value of the outside air temperature for the time period including the current time, and records the location of the facility H that has been recorded in the record R1 of the processing target and the time period of the request target. For example, when the current time is H:M, the time period from H:00 to (H + 1):00 is recorded in the forecast value requirement information. Furthermore, H is an integer from 0 to 24, and M is an integer from 0 to 59. After receiving the forecast value requirement information from the acquisition unit 302, the communication control unit 301 sends the received forecast value requirement information to the weather server 4. Then, the communication control unit 301 receives a plurality of forecast values corresponding to the location of the facility H and the time period recorded in the sent forecast value requirement information from the weather server 4. The acquisition unit 302 calculates the average of the forecast values received by the communication control unit 301 and acquires the calculated average value as the outside air temperature. Furthermore, when calculating the average value of the forecast values, the acquisition unit 302 in this embodiment may unconditionally discard the digits after the decimal point or round the digits after the decimal point. The update unit 303 updates the first management DB 312. The update unit 303 updates the actual record number recorded in the collected data AD at L minutes per hour. The update unit 303 updates the actual record number for each record R1. Here, L is an integer from 0 to 59, for example, 0. Specifically regarding the update of the actual record number, when the update unit 303 is at L minutes per hour, first, it causes the acquisition unit 302 to acquire the outside air temperature based on the record R1 of the processing target. Next, the update unit 303 refers to the management data MD of the record R1 of the processing target and specifies the collected data AD corresponding to the combination of the time period including the current time and the outside air temperature that has been acquired by the acquisition unit 302. Next, the update unit 303 increments the actual record number corresponding to the sum of the currently set temperature recorded in the processing target among the actual record numbers recorded in the specified collected data AD. Also, the update unit 303 updates the change probability corresponding to the incremented actual record number to the change probability that reflects the incremented actual record number. Here, the update of the actual record number will be described with reference to FIG. 5. FIG. 5 is a diagram for explaining the update of the actual record number. In the description of FIG. 5, an example is given where the current time when updating the actual record count is the 14 o'clock period, and the outside air temperature obtained by the acquisition unit 302 is 34°C. Also, in the description of FIG. 5, an example is given where the air conditioner is in the cooling operation state. In the case of FIG. 5, the update unit 303 specifies, from the first management data MD1 recorded in the record R1 of the processing target, the collection data AD corresponding to the combination of the time period of the 14 o'clock period and the outside air temperature of 34°C. In the description of FIG. 5, an example is given where the current set temperature recorded in the record R1 of the processing target is 25°C. That is, in the description of FIG. 5, an example is given where the set temperature set in the air conditioner 1 is 25°C. In the case of FIG. 5, the update unit 303 increments the actual record count corresponding to 25°C from "4" to "5" among the actual record counts recorded in the specified collection data AD. Also, in the case of FIG. 5, the update unit 303 updates the change probability corresponding to 25°C from "3 / 4" to "3 / 5" along with the update of the actual record count. In addition, the update by the update unit 303 will be described. When the communication control unit 301 receives the operation data RD, the update unit 303 updates the first management DB312 based on the received operation data RD. The update unit 303 specifies the record R1 having the air conditioner ID of the received operation data RD from the first management DB312. Then, the update unit 303 updates the current set temperature of the specified record R1 to the changed set temperature recorded in the received operation data RD. Also, the update unit 303 updates the air conditioner type of the specified record R1 to the air conditioner type recorded in the received operation data RD. Further, the update unit 303 causes the acquisition unit 302 to acquire the outside air temperature based on the record R1 specified by the received operation data RD. Next, when the air conditioner type of "cooling" is recorded in the received operation data RD, the update unit 303 specifies the collection data AD corresponding to the combination of the time period including the current time and the outside air temperature that has been acquired by the acquisition unit 302 from the first management data MD1 of the specified record R1. Also, when the air conditioner type of "heating" is recorded in the received operation data RD, the update unit 303 specifies the collection data AD corresponding to the combination of the time period including the current time and the outside air temperature that has been acquired by the acquisition unit 302 from the second management data MD2 of the specified record R1. Next, the update unit 303 refers to the received operation data RD. When the air conditioner type indicates "cooling" and the set temperature after the change is lower than the set temperature before the change, the update unit 303 increments the number of changes corresponding to the set temperature before the change recorded in the received operation data RD among the number of changes recorded in the specified collection data AD. Also, the update unit 303 refers to the received operation data RD. When the air conditioner type indicates "heating" and the set temperature after the change is higher than the set temperature before the change, the update unit 303 increments the number of changes corresponding to the set temperature before the change recorded in the received operation data RD among the number of changes recorded in the specified collection data AD. Furthermore, the update unit 303 updates the change probability corresponding to the incremented number of changes to the change probability reflecting the incremented number of changes. Here, referring to FIG. 6, the update of the number of changes will be described. FIG. 6 is a diagram for explaining the update of the number of changes. In the description of FIG. 6, it is an example where the current time is the 14 o'clock period when updating the number of changes, and the outside air temperature acquired by the acquisition unit 302 is 34°C. Also, in the description of FIG. 6, it is an example where the air conditioner 1 is in the cooling operation. In the case of FIG. 6, the update unit 303 specifies the collection data AD corresponding to the combination of the time period of the 14 o'clock period and the outside air temperature of 34°C from the second management data MD2 recorded in the record R1 of the processing target. In the description of FIG. 6, an example is shown where the type of air conditioner recorded in the received operation data RD is a cooling air conditioner. Also, in the description of FIG. 6, an example is shown where the set temperature before change recorded in the received operation data RD is 25°C. Also, in the description of FIG. 6, an example is shown where the set temperature after change recorded in the received operation data RD is 24°C. In this example, the update unit 303 increments the number of changes corresponding to 25°C from "3" to "4" among the number of changes recorded in the specified collection data AD. Also, in the case of FIG. 6, the update unit 303 updates the change probability corresponding to 25°C from "3 / 4" to "4 / 4" along with the update of the number of changes. Returning to the description of FIG. 2, the automatic control unit 304 automatically controls the set temperature of the air conditioner 1. The automatic control unit 304 determines the set temperature to be set for the air conditioner 1 in the automatic control of the set temperature of the air conditioner 1, and sets the determined set temperature in the air conditioner 1. The automatic control unit 304 sets the set temperature in the air conditioner 1 based on the record R1 of the processing object. Specifically, the automatic control unit 304 generates set data SD, and outputs the generated set data SD and the communication information recorded in the record R1 of the processing object to the communication control unit 301. The determined set temperature is recorded in the generated set data SD. The communication control unit 301 sends the set data SD received from the automatic control unit 304 to the air conditioner 1 based on the communication information received from the automatic control unit 304. The management unit 305 manages the plan of the service related to the air conditioner 1 contracted with the user P. The management unit 305 records or updates the data in the second management DB 313 as this management. When the management department 305 switches the plan subscribed by user P from the first plan to the second plan, it will switch the subscription plan recorded in record R2 corresponding to this user P from the first plan to the second plan. Also, when the management department 305 switches the plan subscribed by user P from the second plan to the first plan, it will switch the subscription plan recorded in record R2 corresponding to this user P from the second plan to the first plan. Specifically speaking, the terminal device 2 can display a screen for switching the subscription plan, and receives a switching operation of the subscription plan from user P on this screen. When the terminal device 2 receives a switching operation of the subscription plan from user P, it will send switching request information for requesting the switching of the subscription plan to the management server 3. In this switching request information, the facility ID of the facility H managed by user P and the target switching plan are recorded. When the communication control unit 301 receives the switching request information, the management department 305 specifies record R2 with the received facility ID from the second management DB 313, and changes the subscription plan of the specified record R2 to the plan recorded in the received switching request information. When the plan subscribed by user P is the first plan and user P requests the execution of an automatic control trial, the management department 305 updates the trial execution status recorded in record R2 corresponding to this user P to the trial execution status indicating that the trial is in progress. Also, when the management department 305 has updated the trial execution status recorded in record R2 to the trial execution status indicating that the trial is in progress, it will update the trial start date recorded in this record R2 to the date when the trial execution status was updated. Specifically speaking, the terminal device 2 can display a screen for inputting an execution instruction for an automatic control trial, and receives an execution instruction for an automatic control trial from user P on this screen. When the terminal device 2 receives an execution instruction for an automatic control trial from user P, it will send execution request information for requesting the execution of an automatic control trial to the management server 3. In this execution request information, the facility ID of the facility H managed by user P is recorded. When the communication control unit 301 receives the execution request information, the management department 305 specifies record R2 with the received facility ID from the second management DB 313, updates the trial execution status of the specified record R2 to in progress, and also updates the trial start date of the specified record R2. When the plan signed by user P in the Management Department 305 is Plan 1 and user P has requested the execution of the automatic control trial, the switching date recorded in the record R2 corresponding to this user P and the automatic control execution status are updated every week. Specifically, the Management Department 305 will set the record R2 indicating Plan 1 in the signed plan as the processing target and perform the following processing. That is, when the current date and time is one week after the switching date recorded in the record R2 of the processing target, the Management Department 305 will update the automatic control execution status recorded in the record R2 of the processing target. When the automatic control execution status before the update shows that it is in execution, the automatic control execution status will be updated to show non-execution. On the other hand, when the automatic control status before the update shows non-execution, the Management Department 305 will update the automatic control execution status to show execution. When the plan signed by user P in the Management Department 305 is Plan 1 and user P has requested the execution of the automatic control trial, the automatic control trial will end one year after the start of the automatic control trial. Specifically, the Management Department 305 will set the record R2 indicating Plan 1 in the signed plan as the processing target and perform the following processing. That is, when the current date and time is the date and time one year after the start date of the trial recorded in the record R2 of the processing target, the Management Department 305 will update the trial execution status recorded in the record R2 of the processing target to the trial execution completed. Also, the Management Department 305 will update the automatic control execution status recorded in the record R2 of the processing target to show non-execution. [1-2. Operation] Next, the operation of each part of the air conditioning system 1000 in the first embodiment will be described. FIG. 7 is a flowchart showing the operation of the management server 3. The flowchart in FIG. 7 is a flowchart that starts at K minutes per hour. Here, K is an integer from 0 to 59, for example, 0. Also, the flowchart in FIG. 7 is a flowchart performed for each facility H. That is, the flowchart in FIG. 7 is an operation performed for each record R2 stored in the second management DB 313. The automatic control unit 304 determines whether the signed plan recorded in the record R2 of the processing target is Plan 1 or Plan 2 (step SA1). When the automatic control unit 304 determines that the signed plan recorded in the record R2 of the processing target is Plan 1 (step SA1: Plan 1), it determines whether user P requests the execution of automatic control (step SA2). In step SA2, when the trial execution status recorded in the record R2 of the processing target indicates execution, the automatic control unit 304 makes an affirmative determination. Also, in step SA2, when the trial execution status recorded in the record R2 of the processing target indicates non-execution, the automatic control unit 304 makes a negative determination. When the automatic control unit 304 determines that the user P corresponding to the record R2 of the processing target does not request a trial (step SA2: No), it does not perform automatic control (step SA3). Furthermore, not performing automatic control means not generating the setting data SD. When the automatic control unit 304 determines that the user P requests the execution of automatic control (step SA2: Yes), it determines whether it is currently within the first period or the second period (step SA4). In step SA4, when the automatic control execution status recorded in the record R2 of the processing target indicates execution, the automatic control unit 304 determines that it is currently within the first period, and when the automatic control execution status recorded in the record R2 of the processing target indicates non-execution, it determines that it is currently within the second period. When the automatic control unit 304 determines that it is currently within the second period (step SA4: within the second period), it does not perform automatic control (step SA3). On the other hand, when the automatic control unit 304 determines that it is currently within the first period (step SA4: within the first period), it performs automatic control (step SA5). Returning to the description of step SA1, when the automatic control unit 304 determines that the signing plan recorded in the record R2 of the processing target is the second plan (step SA1: second plan), it performs automatic control (step SA5). Hereinafter, steps SA5 will be described in detail with reference to FIGS. 8 to 18. The processing of step SA5 is performed for each air conditioner 1 provided in the facility H. That is, the processing of step SA5 is executed for each record R1 having the air conditioner ID of the record R2 set as the processing target in FIG. 7. Hereinafter, the processing of step SA5 will be described by distinguishing between the case where the air conditioner type of the record R1 of the processing target is cooling and the case where it is heating. [1-2-1. Automatic control in the case of cooling] First, the operation in the case where the air conditioner type of the record R1 of the processing target is cooling will be described. FIG. 8 is a flowchart showing the operation of the management server 3 during automatic control. The acquisition unit 302 acquires the outside air temperature based on the record R1 of the processing target (step SB1). Step SB1 will be described in detail. The acquisition unit 302 generates forecast value request information based on the record R of the processing target, and outputs the generated forecast value request information to the communication control unit 301. For example, when the current time is 10:00, the time period from 10:00 to 11:00 is recorded in the forecast value request information. After receiving the forecast value request information from the acquisition unit 302, the communication control unit 301 sends the received forecast value request information to the weather server 4. Then, the communication control unit 301 receives a plurality of forecast values (for example, the forecast value at 10:00 and the forecast value at 11:00) corresponding to the location and time period of the facility H recorded in the sent forecast value request information from the weather server 4. The acquisition unit 302 calculates the average of the forecast values received by the communication control unit 301, and acquires the calculated average value as the outside air temperature. Next, the automatic control unit 304 specifies the collection data AD of the processing target from the first management data MD1 recorded in the record R1 of the processing target (step SB2). Step SB2 will be described in detail. The automatic control unit 304 specifies the collection data AD corresponding to the combination of the time period including the current time and the outside air temperature acquired in step SB1 from the first management data MD1 recorded in the record R1 of the processing target. The automatic control unit 304 determines whether the set temperature included in the predetermined range shown in the collection data AD specified in step SB2 satisfies the following first condition (step SB3). First condition: There are a first set temperature and a second set temperature. The first set temperature refers to the set temperature whose corresponding change probability is equal to or higher than a predetermined threshold. Furthermore, the predetermined threshold may be 0.1 (10% in percentage) as an example. The second set temperature is the second lowest value of the first set temperature in the predetermined range, and the set temperature whose corresponding change probability is less than the predetermined threshold. Here, referring to FIG. 3, the first set temperature and the second set temperature will be described. For the collection data AD shown in FIG. 3, the change probability of "0 / 3" is recorded for the set temperature of 23°C, the change probability of "0 / 1" is recorded for the set temperature of 24°C, the change probability of "3 / 4" is recorded for the set temperature of 25°C, the change probability of "2 / 3" is recorded for the set temperature of 26°C, and the change probability of "4 / 4" is recorded for the set temperature of 27°C. When the predetermined threshold is 0.1, in the collected data AD shown in FIG. 3, 25°C, 26°C, and 27°C conform to the first set temperature, and 24°C conforms to the second set temperature. Furthermore, regarding the collected data AD shown in FIG. 3, the above-mentioned first condition has been satisfied. Returning to the description of the flowchart shown in FIG. 8, when the automatic control unit 304 determines that the first condition is satisfied (step SB3: Yes), it executes the first determination process (step SB4). The first determination process refers to the process of determining an appropriate set temperature. In the first determination process, the collected data AD specified in step SB2 is the processing target. FIG. 9 is a flowchart showing the operation of the management server 3 in the first determination process. The automatic control unit 304 determines whether there are a plurality of second set temperatures among the set temperatures recorded in the collected data AD that is the processing target (step SB41). When the automatic control unit 304 determines that there are not a plurality of second set temperatures (step SB41: No), it determines the second set temperature as the set temperature to be set in the air conditioner 1 (step SB42). Here, referring to FIG. 3, step SB42 will be specifically described. When the predetermined threshold is 0.1, in the collected data AD shown in FIG. 3, 24°C is the second set temperature, and the other set temperatures do not conform to the second set temperature. Accordingly, when the predetermined threshold is 0.1 and the collected data AD that is the processing target is the collected data AD shown in FIG. 3, the automatic control unit 304 determines 24°C as the set temperature to be set in the air conditioner 1 in step 33. On the other hand, when the automatic control unit 304 determines that there are a plurality of second set temperatures (step SB41: Yes), it determines the second set temperature with the highest comfort level of the air-conditioned space S among the set temperatures recorded in the collected data AD that is the processing target as the set temperature to be set in the air conditioner 1 (step SB43). Among the set temperatures recorded in the collected data AD, the set temperature with the highest comfort level of the air-conditioned space S, when the air conditioning being executed in the air conditioner 1 is cooling, refers to the lowest set temperature recorded in the collected data AD. Here, step SB43 will be specifically described with reference to FIG. 10. FIG. 10 is a diagram showing an example of the collected data AD. The collected data AD shown in FIG. 10 records the change probability of "0 / 3" for the set temperature of 23°C, the change probability of "1 / 4" for the set temperature of 24°C, the change probability of "0 / 2" for the set temperature of 25°C, the change probability of "2 / 3" for the set temperature of 26°C, and the change probability of "4 / 4" for the set temperature of 27°C. When the predetermined threshold value is 0.1, in the collected data AD shown in FIG. 10, 24°C, 26°C, and 27°C conform to the first set temperature, and 23°C and 25°C conform to the second set temperature. Accordingly, when the predetermined threshold value is 0.1 and the collected data AD of the processing target is the collected data AD shown in FIG. 10, if the air conditioning being executed by the air conditioner 1 is cooling, the automatic control unit 304 will determine the second set temperature of 23°C as the set temperature to be set in the air conditioner 1. Returning to the description of step SB3 in FIG. 8, when the automatic control unit 304 determines that the first condition is not satisfied (step SB3: No), it will perform the processing for establishing the first condition (step SB5). The processing for establishing the first condition refers to the processing for making it possible to satisfy the above-mentioned first condition for the set temperature recorded in the collected data AD. In the processing for establishing the first condition, the collected data AD specified in step SB2 is set as the processing target. FIG. 11 is a flowchart showing the operation of the management server 3 in the processing for establishing the first condition. The automatic control unit 304 determines whether all the actual record numbers recorded in the collected data AD of the processing target are zero (step SB51). When the automatic control unit 304 determines that all the actual record numbers are zero (step SB51: Yes), it will determine the median value of the plural set temperatures recorded in the collected data AD of the processing target as the set temperature to be set in the air conditioner 1 (step SB52). Furthermore, in this embodiment, when calculating the median value of the set temperature, the decimal part can be unconditionally discarded or rounded off. Furthermore, the set temperature determined in step SB52 is not limited to the median value. For example, the set temperature determined in step SB52 can also be set as the lowest set temperature among the plural set temperatures recorded in the collected data AD of the processing target, or can also be set as the highest set temperature, or can also be set as the set temperature next higher than the median value, or can also be set as the set temperature next lower than the median value. Returning to the description of step SB51, when the automatic control unit 304 determines that the actual recorded numbers are not all zero (step SB51: No), it determines whether the change probability of the third set temperature (hereinafter referred to as the "energy-saving side third set temperature") at which the energy consumption becomes the minimum among the set temperatures where the actual recorded numbers are 1 or more is less than a predetermined threshold value (step SB53). This predetermined threshold value can be, for example, 0.1 (10% in percentage). Furthermore, the set temperature at which the energy consumption of the air conditioner 1 becomes the minimum within a predetermined range of the set temperature, when the air conditioning being executed by the air conditioner 1 is cooling, refers to the highest set temperature within the predetermined range of the set temperature. Here, referring to FIG. 12, the energy-saving side third set temperature will be described. FIG. 12 is a diagram showing an example of the collected data AD. In the collected data AD shown in FIG. 12, for each set temperature from 23°C to 24°C, the actual recorded number of "4", the number of changes of "0", and the change probability of "0 / 4" are recorded. Also, in the collected data AD shown in FIG. 12, for each set temperature from 25°C to 27°C, the actual recorded number of "0" and the number of changes of "0" are recorded. On the other hand, since the actual recorded number is zero, the change probability is not recorded. When the type of air conditioning recorded in the record R1 to be processed is cooling, in the collected data AD shown in FIG. 12, 24°C conforms to the energy-saving side third set temperature. Returning to the description of the flowchart in FIG. 11, when the automatic control unit 304 determines that the change probability of the energy-saving side third set temperature is less than the predetermined threshold value (step SB53: Yes), it determines whether the added temperature obtained by adding 1°C to the energy-saving side third set temperature is higher than the highest set temperature among the set temperatures recorded in the collected data AD to be processed (step SB54). Here, FIG. 12 is used to specifically illustrate the process of step SB54. As described above, in FIG. 12, when the air conditioner 1 is in the cooling operation, 24°C is the energy-saving side third set temperature. Therefore, in the case of FIG. 12, the added temperature when the air conditioner 1 is in the cooling operation is 25°C. Also, among the set temperatures recorded in the collected data AD in FIG. 12, 27°C is the highest set temperature. Accordingly, in the case of FIG. 12, the automatic control unit 304 makes a negative determination in step SB54. When the automatic control unit 304 determines that the added temperature does not exceed the highest set temperature among the set temperatures recorded in the collected data AD to be processed (step SB54: No), it determines the added temperature as the set temperature to be set for the air conditioner 1 (step SB55). On the other hand, when the automatic control unit 304 determines that the added temperature exceeds the highest set temperature among the set temperatures recorded in the collected data AD of the processing target (step SB54: Yes), it determines the set temperature with the smallest actual recorded number in the collected data AD of the processing target as the set temperature to be set in the air conditioner 1 (step SB56). Furthermore, when there are multiple set temperatures with the smallest actual recorded number, the automatic control unit 304 determines the set temperature that minimizes the energy consumption of the air conditioner 1 among the set temperatures with the smallest actual recorded number as the set temperature to be set in the air conditioner 1. Here, step SB56 will be described with reference to FIG. 13. FIG. 13 is a diagram showing an example of the collected data AD. In the collected data AD shown in FIG. 13, for each set temperature from 23°C to 26°C, the actual recorded number of "0" and the number of changes of "0" are recorded. On the other hand, since the actual recorded number is zero, the change probability is not recorded. Also, in the collected data AD shown in FIG. 13, for the set temperature of 27°C, the actual recorded number of "3", the number of changes of "4", and the change probability of "3 / 4" are recorded. In FIG. 13, 27°C is the third set temperature on the energy-saving side. Accordingly, the added temperature will be 28°C, and it is higher than the highest set temperature among the set temperatures recorded in the collected data AD. Therefore, in the case of FIG. 13, when the air conditioner 1 is operating in the cooling mode, the automatic control unit 304 determines 26°C as the set temperature to be set in the air conditioner 1. Returning to the description of step SB53 in FIG. 11, when the automatic control unit 304 determines that the change probability of the third set temperature on the energy-saving side is not less than the predetermined threshold value (step SB53: No), it determines whether there is a fourth set temperature with an actual recorded number of zero between the lowest set temperature and the third set temperature on the energy-saving side within the predetermined range of the set temperatures shown in the collected data AD of the processing target (step SB57). When the automatic control unit 304 determines that there is a fourth set temperature between the lowest set temperature and the third set temperature on the energy-saving side (step SB57: Yes), it determines the fourth set temperature as the set temperature to be set in the air conditioner 1 (step SB58). Furthermore, when there are multiple fourth set temperatures, the automatic control unit 304 determines the fourth set temperature that minimizes the energy saving of the air conditioner 1 as the set temperature to be set in the air conditioner 1. Here, step SB58 will be described with reference to FIG. 14. FIG. 14 is a diagram showing an example of the collected data AD. In the collected data AD shown in FIG. 14, for each set temperature of 23°C, 24°C, and 27°C, the actual record number of "0" and the change number of "0" are recorded. On the other hand, since the actual record number is zero, the change probability is not recorded. Also, in the collected data AD shown in FIG. 14, for the set temperature of 25°C, the actual record number of "3", the change number of "2", and the change probability of "2 / 3" are recorded. Also, in the collected data AD shown in FIG. 14, for the set temperature of 26°C, the actual record number of "4", the change number of "4", and the change probability of "4 / 4" are recorded. When the predetermined threshold is 0.1 and the air conditioner type recorded in the record R1 to be processed is a cooler, in the collected data AD shown in FIG. 14, 26°C conforms to the third set temperature on the energy-saving side. In the collected data AD of FIG. 14, 23°C is the lowest set temperature. That is, in the collected data AD of FIG. 15, there are the fourth set temperature of 23°C and the fourth set temperature of 24°C between 23°C and the third set temperature on the energy-saving side. Therefore, in the case of FIG. 15, in step SB58, the automatic control unit 304 determines 24°C as the set temperature to be set in the air conditioner 1. Returning to the description of the flowchart of FIG. 11, when the automatic control unit 304 determines that there is no fourth set temperature between the lowest set temperature and the third set temperature on the energy-saving side (step SB57: NO), it determines the set temperature with the smallest actual record number between the lowest set temperature and the third set temperature on the energy-saving side within the predetermined range shown in the collected data AD as the set temperature to be set in the air conditioner 1 (step SB59). Furthermore, when there are a plurality of set temperatures with the smallest actual record number, the automatic control unit 304 determines the set temperature with the smallest energy consumption of the air conditioner 1 among the set temperatures with the smallest actual record number as the set temperature to be set in the air conditioner 1. Returning to the description of the flowchart of FIG. 8, the automatic control unit 304 sets the set temperature of the air conditioner 1 to the set temperature determined in step SB4 or step SB5 (step SB6). [1-2-2. Automatic control in the case of heating] First, the operation in the case where the air conditioner type of the record R1 to be processed is heating will be described. FIG. 15 is a flowchart showing the operation of the management server 3 in automatic control. In the description of FIG. 15, the same symbols are attached to the same steps as in FIG. 8, and the detailed description thereof is omitted. The automatic control unit 304 specifies the collected data AD of the processing target from the second management data MD2 recorded in the record R1 to be processed (step SC1). This will be described in detail with respect to step SC1. The automatic control unit 304 specifies the collection data AD corresponding to the combination of the time period including the current time and the outside air temperature obtained in step SB1 from the second management data MD2 of the record R1 of the processing target that has been recorded. The automatic control unit 304 determines whether the set temperature within the predetermined range shown in the collection data AD specified in step SC1 satisfies the following second condition (step SC2). Second condition: There are a fifth set temperature and a sixth set temperature. The fifth set temperature is a set temperature for which the corresponding change probability is less than a predetermined threshold value. For example, the predetermined threshold value can be 0.1 (10% in percentage). The sixth set temperature is the second lowest value among the set temperatures within the predetermined range and is a set temperature for which the corresponding change probability is equal to or higher than the predetermined threshold value. Here, referring to FIG. 4, the fifth set temperature and the sixth set temperature will be described. For the collection data AD shown in FIG. 4, the change probability of "4 / 4" is recorded for the set temperature of 18°C, the change probability of "2 / 3" is recorded for the set temperature of 19°C, the change probability of "1 / 4" is recorded for the set temperature of 20°C, the change probability of "0 / 2" is recorded for the set temperature of 21°C, the change probability of "0 / 3" is recorded for the set temperature of 22°C, and the change probability of "0 / 2" is recorded for the set temperature of 23°C. When the predetermined threshold value is 0.1, in the collection data AD shown in FIG. 4, 21°C, 22°C, and 23°C meet the fifth set temperature, and 20°C meets the sixth set temperature. Furthermore, with respect to the collection data AD shown in FIG. 4, the above-described second condition is satisfied. Returning to the description of the flowchart shown in FIG. 15, when the automatic control unit 304 determines that the second condition is satisfied (step SC2: Yes), it executes the second determination process (step SC3). The second determination process is a process of determining an appropriate set temperature. In the second determination process, the collection data AD specified in step SC1 is the processing target. FIG. 16 is a flowchart showing the operation of the management server 3 in the second determination process. The automatic control unit 304 determines whether there are a plurality of fifth set temperatures among the set temperatures of the collection data AD recorded for the processing target (step SC31). When the automatic control unit 304 determines that there are not a plurality of fifth set temperatures (step SC31: No), it determines the fifth set temperature as the set temperature to be set in the air conditioner 1 (step SC32). On the other hand, when the automatic control unit 304 determines that there are a plurality of fifth set temperatures (step SC31: Yes), it determines the fifth set temperature with the highest comfort level in the air-conditioned space S among the set temperatures recorded in the collected data AD of the processing target as the set temperature to be set in the air conditioner 1 (step SC33). Among the set temperatures recorded in the collected data AD, the set temperature with the highest comfort level in the air-conditioned space S refers to the highest set temperature among the set temperatures recorded in the collected data AD when the air conditioning being executed in the air conditioner 1 is heating. Returning to the description of step SC2 in FIG. 15, when the automatic control unit 304 determines that the second condition is not satisfied (step SC2: No), it performs the processing for establishing the second condition (step SC4). The processing for establishing the second condition refers to the processing for making the set temperature recorded in the collected data AD satisfy the above-mentioned second condition. In the processing for establishing the second condition, the collected data AD specified in step SC1 is set as the processing target. FIG. 17 is a flowchart showing the operation of the management server 3 in the processing for establishing the second condition. In the description of FIG. 17, the same symbols are added to the steps similar to those in FIG. 11, and the description of the processing is appropriately omitted. When the automatic control unit 304 determines that the change probability of the third set temperature on the energy-saving side is less than the predetermined threshold value (step SB53: Yes), it determines whether the subtracted temperature obtained by decreasing the third set temperature on the energy-saving side by 1°C is lower than the lowest set temperature among the set temperatures recorded in the collected data AD of the processing target (step SC41). Here, referring to FIG. 18, the third set temperature on the energy-saving side during heating is described. FIG. 18 is a diagram showing an example of the collected data AD. In the collected data AD shown in FIG. 18, for each set temperature from 19°C to 20°C, the actual record number of "2", the change number of "1", and the change probability of "1 / 2" are recorded. Also, in the collected data AD shown in FIG. 18, for each set temperature of 18°C and from 21°C to 23°C, the actual record number of "0" and the change number of "0" are recorded. On the other hand, since the actual record number is zero, the change probability is not recorded. When the type of air conditioning in the record R1 of the processing target is heating, in the collected data AD shown in FIG. 18, 19°C corresponds to the third set temperature on the energy-saving side. Here, FIG. 18 is specifically referred to for explaining the processing of step SC41. As described above, in FIG. 18, 19°C is the third set temperature on the energy-saving side. Therefore, in the case of FIG. 18, the subtraction temperature is 18°C. Also, among the set temperatures recorded in the collected data AD in FIG. 18, 18°C is the lowest set temperature. Accordingly, in the case of FIG. 18, the automatic control unit 304 makes a negative determination in step SC41. When the automatic control unit 304 determines that the subtraction temperature is not lower than the lowest set temperature among the set temperatures recorded in the collected data AD of the processing target (step SC41: No), the subtraction temperature is determined as the set temperature to be set in the air conditioner 1 (step SC42). On the other hand, when the automatic control unit 304 determines that the subtraction temperature is lower than the lowest set temperature among the set temperatures recorded in the collected data AD of the processing target (step SC41: No), the processing of step SB56 is performed. Returning to the description of step SB53 in FIG. 17, when the automatic control unit 304 determines that the change probability of the third set temperature on the energy-saving side is not less than the predetermined threshold (step SB53: No), it determines whether there is a fourth set temperature with an actual record count of zero between the highest set temperature and the third set temperature on the energy-saving side within the predetermined range of the set temperatures shown in the collected data AD of the processing target (step SC43). When the automatic control unit 304 determines that there is a fourth set temperature between the highest set temperature and the third set temperature on the energy-saving side (step SC43: Yes), the fourth set temperature is determined as the set temperature to be set in the air conditioner 1 (step SB58). Furthermore, when there are multiple fourth set temperatures, the fourth set temperature that minimizes the energy saving of the air conditioner 1 is determined as the set temperature to be set in the air conditioner 1. When the automatic control unit 304 determines that there is no fourth set temperature between the highest set temperature and the third set temperature on the energy-saving side (step SC43: No), the set temperature with the minimum actual record count between the highest set temperature and the third set temperature on the energy-saving side within the predetermined range shown in the collected data AD is determined as the set temperature to be set in the air conditioner 1 (step SC44). Furthermore, when there are multiple set temperatures with the minimum actual record count, the set temperature that minimizes the energy consumption of the air conditioner 1 among the set temperatures with the minimum actual record count is determined as the set temperature to be set in the air conditioner 1. Returning to the description of the flowchart in FIG. 15, the automatic control unit 304 sets the set temperature of the air conditioner 1 to the set temperature determined in step SC3 or step SC4 (step SC5). [1-3. Effects, etc.] As described above, the air conditioning system 1000 air-conditions the conditioned space S by means of the air conditioner 1. The air conditioning system 1000 includes: an automatic control unit 304 that automatically controls the set temperature of the air conditioner 1; and a management unit 305 that manages the plan for the service related to the air conditioner 1 contracted with the user P. When the plan managed by the management unit 305 is the first plan, the automatic control unit 304 generates both a first period of automatic control and a second period of no automatic control. When the plan managed by the management unit 305 is a second plan that is more expensive than the first plan, the automatic control unit 304 generates a first period that is longer than that of the first plan. Accordingly, when the plan contracted by the user P is the first plan that is less expensive than the second plan, the automatic control of the set temperature of the air conditioner 1 can be performed in a period shorter than that of the second plan, and when the plan contracted by the user P is the second plan that is more expensive than the first plan, the automatic control of the set temperature of the air conditioner 1 can be performed in a period longer than that of the first plan. Accordingly, the automatic control of the set temperature of the air conditioner 1 can be appropriately performed in response to plans with different amounts. When the plan managed by the management unit 305 is the first plan, the automatic control unit 304 alternately generates the first period and the second period every week. Accordingly, since the first period and the second period are alternately generated, the possibility that the user P can surely feel the effect of automatic control can be increased. When the plan managed by the management unit 305 is the first plan, the automatic control unit 304 determines whether the user P requests the execution of automatic control, and when it is determined that the user P requests the execution of automatic control, both the first period and the second period are generated. Accordingly, since both the first period and the second period are generated when the user P requests the execution of automatic control, the following situation can be prevented: although the user P does not request automatic control, a period of automatic control is generated. When it is determined that the execution of automatic control is not requested, the automatic control unit 304 does not generate the first period but generates the second period. Accordingly, when the user P does not request the execution of automatic control, a period of automatic control is not generated. Accordingly, the following situation can be prevented: although the user P does not request automatic control, a period of automatic control is generated. When the plan managed by the management unit 305 is the second plan, the automatic control unit 304 generates the first period and does not generate the second period. Accordingly, it is possible to prevent a period during which automatic control is not performed when the plan in the contract with the user P is an expensive plan, and it is possible to prevent a difference in comfort caused by the generation of the first period and the second period from occurring in the air-conditioned space S. Accordingly, when the plan in the contract with the user P is an expensive plan, it is possible to maintain the comfort of the air-conditioned space S. In the case where the plan for the service related to the air conditioner 1 in the contract with the user P is the first plan, both the first period and the second period are generated. The first period is a period during which automatic control of the set temperature of the air conditioner 1 is performed, and the second period is a period during which automatic control is not performed. In the case where the plan in the contract with the user P is the second plan, which is more expensive than the first plan, a first period with a longer duration than the first plan is generated. Accordingly, the same effects as those of the air conditioning system 1000 described above can be achieved. The control program 311 causes the server control device 30 of the air conditioning system 1000 that air-conditions the air-conditioned space S by means of the air conditioner 1 to function as an automatic control unit 304 that automatically controls the set temperature of the air conditioner 1. When the plan for the service related to the air conditioner 1 in the contract with the user P is the first plan, both the first period during which automatic control is performed and the second period during which automatic control is not performed are generated. When the plan in the contract with the user P is the second plan, which is more expensive than the first plan, a first period with a longer duration than the first plan is generated. Accordingly, the same effects as those of the air conditioning system 1000 described above can be achieved. (Embodiment 2) Next, Embodiment 2 will be described. Compared with Embodiment 1, in Embodiment 2, a first plan, a second plan, and a third plan are prepared in the service. The third plan is a plan in which automatic control of the set temperature is not performed. Also, the first plan of Embodiment 2 is a plan in which a trial of automatic control is performed regardless of the request for the trial of automatic control. In the present embodiment, the first plan is a plan with a monthly usage fee of α yen. For example, the first plan is a plan with 500 yen per month and per system. The content of the service that can be received according to the first plan includes setting the functions of the air conditioner 1 for the purpose of energy consumption quantification, or confirming the history of the set temperature of the air conditioner 1, and a trial of automatic control of the set temperature of the air conditioner 1. In this embodiment, the second plan is a plan where the cost per unit is β (β > α) yen. For example, the second plan is a plan where it is 1000 yen per month and per system. Among the contents of the service that can be received according to the second plan, it includes: setting the functions of the air conditioner 1 for the purpose of quantifying energy consumption, or confirming the history of the set temperature of the air conditioner 1, and automatic control of the set temperature of the air conditioner 1, etc. This embodiment also performs automatic control in the second plan. In this embodiment, the third plan is a plan where the monthly usage fee is α yen. For example, the third plan is a plan where it is 500 yen per month and per system. Among the contents of the service that can be received according to the third plan, it is setting the functions of the air conditioner 1 for the purpose of quantifying energy consumption, or / and confirming the history of the set temperature of the air conditioner 1, and the trial of automatic control of the set temperature of the air conditioner 1 is not included. By preparing three plans like this, when the user P finds automatic control attractive, the second plan can be selected; when the user P is resistant to the method of selecting automatic control, automatic control can be tried by selecting the first plan; and when the user P finds automatic control unattractive or has no interest in automatic control, the third plan can be selected. Also, even if the third plan is selected, when the user P becomes interested or finds automatic control attractive, the first plan can still be selected to try automatic control. Furthermore, after the trial period of selecting the first plan, the user P will select the second plan or the third plan. [2-1. Configuration] The configuration of each part of the air conditioning system 1000 in Embodiment 2 is the same as the configuration of each part of the air conditioning system 1000 in Embodiment 1, and the detailed description thereof will be appropriately omitted. [2-2. Operation] Next, the operation of each part of the air conditioning system 1000 in Embodiment 2 will be described. Compared with Embodiment 1, the operation related to the determination of whether to execute automatic control is different in Embodiment 2. FIG. 19 is a flowchart showing the operation of the management server 3. Furthermore, the flowchart of FIG. 19 is the same as FIG. 7, and is a flowchart for each facility H. That is, the flowchart of FIG. 19 is an operation performed for each record R2 stored in the second management DB 313. The automatic control unit 304 determines whether the contract plan recorded in the record R2 of the processing target is the second plan (step SD1). When the automatic control unit 304 determines that the contract plan recorded in the record R2 of the processing target is the second plan (step SD1: Yes), it executes the processing of step SA5. On the other hand, when the automatic control unit 304 determines that the signing plan recorded in the record R2 of the processing target is not the second plan (step SD1: No), it determines whether the signing plan recorded in the record R2 of the processing target is the first plan (step SD2). When the automatic control unit 304 determines that the signing plan recorded in the record R2 of the processing target is the first plan (step SD2: Yes), it executes the processing after step SA4. On the other hand, when the automatic control unit 304 determines that the signing plan recorded in the record R2 of the processing target is the first plan (step SD2: No), it executes the processing of step SA3. [2-3. Effects, etc.] According to the second embodiment, the same effects as those of the first embodiment can be exhibited. (Other Embodiments) As described above, as examples disclosed in this application, the above-described first and second embodiments have been described. However, the technology in this disclosure is not limited to this, and can also be applied to embodiments in which changes, replacements, additions, omissions, etc. have been made. Also, the constituent elements described in the above-described first and second embodiments can be combined to create a new embodiment. Therefore, other embodiments are exemplified below. In other embodiments, the algorithm for automatic control of the set temperature is not limited to the algorithm of the first embodiment described above. In the above-described embodiment, as a parameter for determining the set temperature to be set in the air conditioner 1, it includes the configuration of the outside air temperature. In other embodiments, as this parameter, instead of or together with the outside air temperature, it can also be set to include the following configurations: outside air humidity, or the amount of sunlight in a predetermined area including the location of the facility H, the amount of precipitation in a predetermined area including the location of the facility H, etc. In other embodiments, the management server 3 can further record the update date and time when the actual recording number or the change number is updated. And, in other embodiments, it can also be configured such that the more recent the update date and time, the higher the priority for calculating the change probability. In the above-described embodiment, although the predetermined range of the set temperature shown in the collected data AD is in the range from 23°C to 27°C, this predetermined range is only an example, and it can also be the range of the set temperature that can be set by the air conditioner 1, or it can be considered as the range set by the user within the range of the set temperature that can be set by the air conditioner 1. In the above-described embodiment, the plurality of set temperatures included in the predetermined range shown in the collected data AD are set temperatures with an interval of 1°C. In other embodiments, the interval of the set temperatures included in the predetermined range is not limited to 1°C, and can also be made, for example, with an interval of 0.5°C. In the above-described embodiment, the first plan is a plan that performs a trial of automatic control only when a trial of automatic control has been requested. In other embodiments, the first plan may also be a plan that performs a trial of automatic control regardless of the request for a trial of automatic control. In the above-described embodiment, the second plan is a plan that does not generate a second period. In other embodiments, the second plan may also be set to a plan that generates a second period. Furthermore, in other embodiments, the second period generated in the second plan should be shorter than the second period generated in the first plan. In the above-described embodiment, although both the first plan and the second plan are paid plans, in other embodiments, it may also be that: the first plan is set to a free plan, and the second plan is set to a paid plan. In the above-described embodiment, although in the first plan, the first period and the second period are alternately generated every one week, this period is only an example and may be longer than one week or shorter than one week. In the above-described embodiment, in the first management data MD1, there is a configuration that stores the number of changes for the combination of time segments and external air temperature. In other embodiments, it may also be configured as follows: the server memory 310 stores the number of changes for each set temperature for time segments, rather than for the combination of time segments and external air temperature. In the case of other embodiments, the automatic control unit 304 determines the set temperature based on the number of changes corresponding to the time segment. In the above-described embodiment, in the first management data MD1, there is a configuration that stores the number of changes for the combination of time segments and external air temperature. In other embodiments, it may also be configured as follows: the server memory 310 stores the number of changes for each set temperature for external air temperature, rather than for the combination of time segments and external air temperature. In the case of other embodiments, the automatic control unit 304 determines the set temperature based on the number of changes corresponding to the external air temperature. In the above-described embodiment, the set temperature is determined based on the number of changes that match the time segment including the current time and the external air temperature acquired by the acquisition unit 302. That is, in the above-described embodiment, the set temperature is determined based on the number of changes that match the current conditions. In other embodiments, the number of changes close to the current conditions (for example, the number of changes within ±1°C of the external air temperature acquired by the acquisition unit 302) may also be considered to determine the set temperature. In the above-described embodiment, although there are a plurality of second set temperatures and fifth set temperatures, the set temperature that maximizes the comfort of the air-conditioned space S is determined as the set temperature to be set. However, the set temperature that minimizes the energy consumption of the air conditioner 1 may also be determined as the set temperature to be set. In the above-described embodiment, the temperature compared in step SB54 is the added temperature obtained by adding 1°C to the third set temperature on the energy-saving side. In other embodiments, the temperature compared in step SB54 is not limited to the added temperature obtained by adding 1°C to the third set temperature on the energy-saving side. It may also be a temperature obtained by adding a predetermined temperature (e.g., 2°C) to the third set temperature on the energy-saving side, or a temperature obtained by multiplying by a predetermined coefficient (e.g., 1.1). Furthermore, in the case of multiplication, rounding up or rounding down may be performed unconditionally for the digits after the decimal point. In the above-described embodiment, the temperature compared in step SC41 is the subtracted temperature obtained by subtracting 1°C from the third set temperature on the energy-saving side. In other embodiments, the temperature compared in step SC41 is not limited to the subtracted temperature obtained by subtracting 1°C from the third set temperature on the energy-saving side. It may also be a temperature obtained by subtracting a predetermined temperature (e.g., 2°C) from the third set temperature on the energy-saving side, or a temperature obtained by multiplying by a predetermined coefficient (e.g., 0.1). Furthermore, in the case of multiplication, rounding up or rounding down may be performed unconditionally for the digits after the decimal point. In the above-described embodiment, although the amounts are different among a plurality of plans, the content that differs among the plans is not limited to the amount. It may also be the service content. In other embodiments, the configuration may be as follows: The functions of at least any one of the acquisition unit 302, the update unit 303, and the automatic control unit 304 are not executed by the server control device 30, but by the control device for each part of the control terminal device 2 or the control device for each part of the air conditioning device 1 (such as the communication device 14). In the case of other embodiments, the control device for each part of the control terminal device 2 or the control device for each part of the air conditioning device 1 corresponds to a "computer". Also, in the case of other embodiments, a program for realizing the function of at least any one of the acquisition unit 302, the update unit 303, and the automatic control unit 304, and which is executed by the control device for each part of the control terminal device 2 or the control device for each part of the air conditioning device 1, corresponds to a "program". Also, in the case of other embodiments, the memory of the terminal device 2 or the air conditioning device 1 may store the management data MD. Furthermore, when the control device for each part of the air conditioning device 1 functions as the automatic control unit 304, the automatic control unit 304 sets the set temperature in the air conditioning device 1 by controlling each part of the air conditioning device 1. That is, the automatic control unit 304 in this case does not generate the set data SD. The server processor 300 may be constituted by a single processor or by a plurality of processors. These processors may also be hardware programmed to implement the corresponding functional units. That is, these processors may also be constituted by, for example, an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array). The configuration of the management server 3 shown in FIG. 2 is an example, and the specific assembly form is not particularly limited. That is, it is not necessary to assemble the corresponding hardware individually for each part, and it may also be configured to implement the functions of each part by executing a program with one processor. Also, a part of the functions implemented by software in the above embodiments may be set as hardware, or a part of the functions implemented by hardware may be implemented by software. The step units of the operations shown in FIGS. 7, 8, 9, 11, 15, 16, 17, and 19 are divided according to the main processing content for easy understanding of the operations, and the operations are not limited by the division method or name of the processing unit. It may be further divided into more step units according to the processing content. Also, it may be divided such that one step unit includes more processing. Also, the order of these steps may be appropriately replaced within the scope that does not hinder the gist of this disclosure. Furthermore, since the above-described embodiments are used to illustrate the embodiments of the technology in the present disclosure, various changes, replacements, additions, omissions, etc. can be made within the scope of the claims or their equivalents. (Note) From the description of the above embodiments, the following technology is disclosed. (Technology 1) An air-conditioning system that air-conditions an air-conditioned space by means of an air-conditioning device, the air-conditioning system comprising: an automatic control unit that automatically controls the set temperature of the air-conditioning device; and a management unit that manages a plan for services related to the air-conditioning device in a contract with a user, the automatic control unit performing the following operations: when the plan managed by the management unit is a first plan, generating both a first period in which the automatic control is performed and a second period in which the automatic control is not performed; when the plan managed by the management unit is a second plan different from the first plan, generating a first period that is longer than the first plan. Accordingly, when the plan in the user's contract is the first plan, the automatic control of the set temperature of the air-conditioning device can be performed in a shorter period than the second plan, and when the plan in the user's contract is a second plan different from the first plan, the automatic control of the set temperature of the air-conditioning device can be performed in a longer period than the first plan. Accordingly, the automatic control of the set temperature of the air-conditioning device can be performed in accordance with the plan. (Technology 2) The air-conditioning system according to Technology 1, wherein when the plan managed by the management unit is the first plan, the automatic control unit alternately generates the first period and the second period at each predetermined period. Accordingly, since the first period and the second period are alternately generated, the possibility that the user can surely feel the effect of the automatic control can be increased. (Technology 3) The air-conditioning system according to Technology 1 or Technology 2, wherein the automatic control unit performs the following operations: when the plan managed by the management unit is the first plan, determining whether the user requests the execution of the automatic control, and when it is determined that the user requests the execution of the automatic control, generating both the first period and the second period. Accordingly, since both the first period and the second period are generated when the user requests the execution of the automatic control, the following situation can be prevented: although the user does not request automatic control, a period in which automatic control is performed is generated. (Technology 4) The air conditioning system as described in Technology 3, wherein the aforementioned automatic control unit performs the following operations: When it is determined that the execution of the aforementioned automatic control is not requested, the aforementioned first period is not generated and the aforementioned second period is generated. Accordingly, when the user does not request the execution of automatic control, the period of performing automatic control is not generated. Accordingly, the following situation can be prevented: Although the user does not request automatic control, a period of performing automatic control is caused to be generated. (Technology 5) The air conditioning system as described in any one of Technologies 1 to 4, wherein the aforementioned second plan is a more expensive plan than the aforementioned first plan. Accordingly, the set temperature of the air conditioning device can be appropriately automatically controlled in response to plans with different amounts. (Technology 6) The air conditioning system as described in Technology 5, wherein the aforementioned automatic control unit performs the following operations: When the plan managed by the aforementioned management unit is the aforementioned second plan, the aforementioned first period is generated and the aforementioned second period is not generated. Accordingly, in the case where the plan signed by the user is an expensive plan, the period during which automatic control is not performed can be prevented from occurring, and the difference in comfort caused by the generation of the first period and the second period will not occur in the air-conditioned space. Accordingly, in the case where the plan signed by the user is an expensive plan, the comfort of the air-conditioned space can be maintained. (Technology 7) A control method for an air conditioning system that air-conditions an air-conditioned space by means of an air conditioning device. The control method for the air conditioning system causes the computer of the air conditioning system to perform the following operations: When the plan for the service related to the aforementioned air conditioning device signed with the user is the first plan, both the first period and the second period are generated. The first period is the period of automatically controlling the set temperature of the aforementioned air conditioning device, and the second period is the period of not performing the aforementioned automatic control. When the aforementioned plan signed by the user is the second plan different from the aforementioned first plan, the aforementioned first period with a longer period than the first plan is generated. Accordingly, the same effect as the air conditioning system described in Technology 1 can be achieved. (Technology 8) A program causes the computer of an air conditioning system that air-conditions an air-conditioned space by means of an air conditioning device to function as an automatic control unit for automatically controlling the set temperature of the aforementioned air conditioning device. The aforementioned automatic control unit performs the following operations: When the plan for the service related to the aforementioned air conditioning device signed with the user is the first plan, both the first period of performing the aforementioned automatic control and the second period of not performing the aforementioned automatic control are generated. When the aforementioned plan signed by the user is the second plan different from the aforementioned first plan, the aforementioned first period with a longer period than the first plan is generated. Accordingly, the same effect as the air conditioning system described in Technology 1 can be achieved. Industrial Applicability As described above, the air conditioning system, the control method and program of the air conditioning system of the present invention can be used for the purpose of automatically controlling the set temperature of an air conditioning device. 1: Air conditioning device 2: Terminal device 3: Management server 4: Meteorological server 11: Indoor unit 12: Outdoor unit 13: Remote controller 14: Communication device 30: Server control device (computer) 31: Server communication device 300: Server processor 301: Communication control section 302: Acquisition section 303: Update section 304: Automatic control section 305: Management section 310: Server memory 311: Control program (program) 312: First management DB 313: Second management DB 1000: Air conditioning system AD: Collected data H: Facility MD: Management data MD1: First management data MD2: Second management data NW: Network P: User R1, R2: Record RD: Operation data S: Air-conditioned space SD: Set data SA1~SA5, SB1~SB6, SB41~SB43, SB51~SB59, SC1~SC5, SC31~SC33, SC41~SC44, SD1~SD2: Steps FIG. 1 is a diagram showing the configuration of the air conditioning system in Embodiment 1. FIG. 2 is a diagram showing the configuration of the management server in Embodiment 1. FIG. 3 is a diagram showing an example of the first management data in Embodiment 1. FIG. 4 is a diagram showing an example of the second management data in Embodiment 1. FIG. 5 is a diagram for explaining the update of the actual record number in Embodiment 1. FIG. 6 is a diagram for explaining the update of the change count in Embodiment 1. FIG. 7 is a flowchart showing the operation of the management server in Embodiment 1. FIG. 8 is a flowchart showing the operation of the management server in Embodiment 1. FIG. 9 is a flowchart showing the operation of the management server in Embodiment 1. FIG. 10 is a diagram showing an example of the collected data in Embodiment 1. FIG. 11 is a flowchart showing the operation of the management server in Embodiment 1. FIG. 12 is a diagram showing an example of the collected data in Embodiment 1. FIG. 13 is a diagram showing an example of the collected data in Embodiment 1. FIG. 14 is a diagram showing an example of the collected data in Embodiment 1. FIG. 15 is a flowchart showing the operation of the management server in Embodiment 2. FIG. 16 is a flowchart showing the operation of the management server in Embodiment 2. FIG. 17 is a flowchart showing the operation of the management server in Embodiment 2. FIG. 18 is a diagram showing an example of the collected data in Embodiment 2. FIG. 19 is a flowchart showing the operation of the management server in Embodiment 2. SA1~SA5: Steps

Claims

1. An air conditioning system that air-conditions a space by means of an air conditioning device, the air conditioning system comprising: an automatic control unit for automatically controlling the set temperature of the air conditioning device; and a management unit for managing a service plan related to the air conditioning device under a user contract, wherein the automatic control unit performs the following operations: when the plan managed by the management unit is a first plan, generating both a first period during which the automatic control is performed and a second period during which the automatic control is not performed; when the plan managed by the management unit is a second plan different from the first plan, generating a first period longer than the first plan; and when the plan managed by the management unit is the first plan, alternately generating the first period and the second period for each predetermined period.

2. The air conditioning system of request item 1, wherein the aforementioned automatic control unit performs the following actions: when the aforementioned scheme managed by the aforementioned management unit is the aforementioned first scheme, it determines whether the aforementioned user requests the execution of the aforementioned automatic control; if it is determined that the user requests the execution of the aforementioned automatic control, it generates both the aforementioned first period and the aforementioned second period.

3. The air conditioning system of claim 2, wherein the aforementioned automatic control unit performs the following operation: if it is determined that the execution of the aforementioned automatic control is not required, the aforementioned first period is not generated and the aforementioned second period is generated instead.

4. The air conditioning system as requested in item 1, wherein the aforementioned second option is a more expensive option than the aforementioned first option.

5. The air conditioning system of claim 4, wherein the aforementioned automatic control unit performs the following operation: when the aforementioned scheme managed by the aforementioned management unit is the aforementioned second scheme, the aforementioned first period is generated but the aforementioned second period is not generated.

6. A method for controlling an air conditioning system, wherein an air conditioning device is used to air-condition a space, the method comprising causing a computer of the air conditioning system to perform the following actions: When the service plan related to the air conditioning device in the user's contract is Plan 1, generating both a first period and a second period, wherein the first period is a period of automatic control of the set temperature of the air conditioning device, and the second period is a period of no automatic control; when the user's contract is Plan 2, which is different from Plan 1, generating a first period longer than Plan 1; when the user's contract is Plan 1, interactively generating the first period and the second period at predetermined intervals.

7. A control program that enables a computer of an air conditioning system that conditioned a space by means of an air conditioning device to function as an automatic control unit that automatically controls the set temperature of the air conditioning device. The automatic control unit performs the following operations: when the service plan related to the air conditioning device in the contract with the user is Plan 1, it generates both a first period during which the automatic control is performed and a second period during which the automatic control is not performed; when the plan in the user's contract is Plan 2, which is different from Plan 1, it generates a first period that is longer than Plan 1; when the plan in the user's contract is Plan 1, it generates the first period and the second period alternately every predetermined period.

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