Air conditioning system

Abstract

An air conditioning system (1) comprises an air conditioner (60), an air conditioning management device (10), an on-site terminal (20), a remote terminal (30), and a server device (40). A communication line (L2) is more limited in terms of at least one of a communication volume and a communication speed than each of a communication line (L1) and a communication line (L3). The on-site terminal (20) acquires air conditioning data and a display program from the air conditioning management device (10) via the communication line (L1), and displays the air conditioning data on the basis of the air conditioning data and the display program. The remote terminal (30) acquires the air conditioning data from the air conditioning management device (10) via the communication line (L2), while acquiring the display program from the server device (40) via the communication line (L3), and displays the air conditioning data on the basis of the acquired air conditioning data and the display program.

Description

Air conditioning system

[0001] The present disclosure relates to air conditioning systems.

[0002] Conventionally, systems including an air conditioning control device that manages air conditioners and a terminal capable of communicating with the air conditioning control device have been known. For example, Japanese Patent Publication No. 6419203 (Patent Document 1) discloses a management system in which the air conditioning control device that manages the air conditioners is communicably connected to a local terminal such as a PC or a mobile terminal via a communication line such as a wireless LAN (Local Area Network) such as Wi-Fi or a wired LAN. With this management system, a user can obtain operating data of the air conditioners from the air conditioning control device using the local terminal.

[0003] Patent No. 6419203

[0004] The system disclosed in Japanese Patent Publication No. 6419203 is intended to communicate with an air conditioning control device using a local terminal located within a LAN connection range (e.g., within the same building) to the air conditioning control device. However, in recent years, systems have been developed that communicate with an air conditioning control device using a remote terminal located outside the LAN connection range. Such systems may be configured to communicate with the air conditioning control device from a remote terminal located far from the air conditioning control device via a low-speed, low-capacity communication line with a predetermined upper limit on the communication volume or communication speed, such as that provided by a Mobile Virtual Network Operator (MVNO). In such systems, if a screen shared with the local terminal is also displayed on the remote terminal, transmitting a display program from the air conditioning control device to the remote terminal each time using a communication line with a limited communication volume or communication speed provided by the Mobile Virtual Network Operator may result in the communication volume reaching the available communication volume limit early or the communication time being extended.

[0005] The present disclosure has been made to solve the above-mentioned problems, and aims to provide a technology that enables a remote terminal to display a screen common to a local terminal using a communication line with limited communication volume or speed.

[0006] The air conditioning system according to the present disclosure includes at least one air conditioner, an air conditioning management device that manages the at least one air conditioner, a local terminal capable of communicating with the air conditioning management device via a first communication line, at least one remote terminal capable of communicating with the air conditioning management device via a second communication line, and a server device capable of communicating with the at least one remote terminal via a third communication line. The second communication line is more limited in at least one of communication volume and communication speed than each of the first communication line and the third communication line. The air conditioning management device stores air conditioning data related to the at least one air conditioner and a display program for displaying the air conditioning data. The server device stores the display program. The local terminal acquires the air conditioning data and the display program from the air conditioning management device via the first communication line and displays the air conditioning data based on the acquired air conditioning data and display program. The at least one remote terminal acquires the air conditioning data from the air conditioning management device via the second communication line, while acquiring the display program from the server device via the third communication line, and displays the air conditioning data based on the acquired air conditioning data and display program.

[0007] According to the air conditioning system disclosed herein, the remote terminal obtains air conditioning data from the air conditioning management device via a second communication line that has at least one of the communication volume and communication speed limited more than the first communication line, while obtaining the display program from the server device via a third communication line that has at least one of the communication volume and communication speed not limited more than the second communication line.Therefore, it is possible to display a screen that is common to the local terminal while using the second communication line that has at least one of the communication volume and communication speed limited more than the first communication line.

[0008] 1 is a diagram showing the overall configuration of an air conditioning system according to embodiment 1. FIG. 2 is a diagram showing the functional configuration of an air conditioning system according to embodiment 1. FIG. 3 is a diagram showing an example of an air conditioning management screen displayed in the air conditioning system according to embodiment 1. FIG. 4 is a diagram showing an example of data communication in the air conditioning system according to embodiment 1. FIG. 5 is a diagram showing an example of an air conditioning management screen displayed in an air conditioning system according to embodiment 2. FIG. 6 is a diagram showing an example of an air conditioning management screen displayed in an air conditioning system according to embodiment 3. FIG. 7 is a diagram showing an example of data communication in an air conditioning system according to embodiment 3. FIG. 8 is a diagram showing an example of data communication in an air conditioning system according to embodiment 4. FIG. 9 is a diagram showing an example of data communication when communication is normal in an air conditioning system according to embodiment 5. FIG. 10 is a diagram showing an example of data communication when communication is abnormal in an air conditioning system according to embodiment 5.

[0009] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. While multiple embodiments will be described below, it is anticipated from the beginning that the configurations described in each embodiment will be appropriately combined. Note that identical or corresponding parts in the drawings will be designated by the same reference numerals, and their description will not be repeated.

[0010] Embodiment 1 An air conditioning system 1 according to Embodiment 1 will be described with reference to Figures 1 to 4. Figure 1 is a diagram showing the overall configuration of the air conditioning system 1 according to Embodiment 1. As shown in Figure 1, the air conditioning system 1 includes at least one air conditioner 60, an air conditioning management device 10, a local terminal 20, a remote terminal 30, and a server device 40.

[0011] The air conditioner 60 includes an outdoor unit 61 and an indoor unit 62, and adjusts the temperature or humidity of air drawn in from an indoor space by circulating a refrigerant in the outdoor unit 61 and the indoor unit 62, and supplies the adjusted air to the indoor space. In the example of Figure 1, multiple indoor units 62 are connected to one outdoor unit, and one air conditioner 60 is made up of one outdoor unit 61 and one indoor unit 62.

[0012] The air conditioning management device 10 is connected to at least one air conditioner 60 and manages the at least one air conditioner 60. For example, the air conditioning management device 10 communicates with the at least one air conditioner 60 to acquire air conditioning data related to the air conditioning of the at least one air conditioner 60 and control the at least one air conditioner 60. In the example of FIG. 1 , the air conditioning management device 10 is connected to a plurality of outdoor units 61 and acquires air conditioning data from each outdoor unit 61 and controls each outdoor unit 61.

[0013] The local terminal 20 is, for example, an information terminal such as a desktop personal computer (PC), laptop PC, or tablet PC, or a mobile terminal such as a smartphone owned individually by a user. The local terminal 20 is communicably connected to the air conditioning management device 10 via a communication line L1. The local terminal 20 is able to acquire air conditioning data from the air conditioning management device 10 via the communication line L1.

[0014] The remote terminal 30 is, for example, an information terminal such as a desktop PC, laptop PC, or tablet PC, or a mobile terminal such as a smartphone owned individually by a user. The remote terminal 30 is configured to be able to communicate with the air conditioning management device 10 via communication line L2. Specifically, the remote terminal 30 is connected to a terminal device 80 (described later) in the cloud via communication line L3, and the terminal device 80 is communicatively connected to the air conditioning management device 10 via communication base station 50 and communication line L2. That is, the remote terminal 30 is communicatively connected to the air conditioning management device 10 using communication line L2 and communication line L3 via the terminal device 80 and communication base station 50. The remote terminal 30 is able to acquire air conditioning data from the air conditioning management device 10 via communication line L2 and communication line L3.

[0015] The server device 40 is a cloud-based server device configured with information terminals such as PCs. The server device 40 is configured to be able to communicate with the air conditioning management device 10 using communication line L2 via a communication base station 50. Specifically, like the remote terminal 30, the server device 40 is connected to the air conditioning management device 10 so as to be able to communicate with the air conditioning management device 10 using communication line L2 and communication line L3 via a termination device 80 and the communication base station 50.

[0016] The communication line L1 is an example of a "first communication line." The communication line L1 is a fixed line using a wired LAN such as an optical fiber line or a wireless LAN such as Wi-Fi, and is capable of transmitting large amounts of data at high speed between the local terminal 20 and the air conditioning management device 10. The local terminal 20 is located within a range where communication with the air conditioning management device 10 is possible using a fixed line or wireless LAN. For example, the local terminal 20 and the air conditioning management device 10 are located in the same first building. Meanwhile, the remote terminal 30 is located in a second building different from the air conditioning management device 10 and the local terminal 20. Note that the local terminal 20 may be capable of performing data communication via the Internet, but is configured to communicate data with the air conditioning management device 10 via the communication line L1 using a wired LAN or wireless LAN without using the Internet.

[0017] The communication line L2 is an example of a "second communication line." The communication line L2 is a communication line for the Internet of Things (IoT) provided by a virtual mobile communications carrier. The communication line L2 may be an Integrated Services Digital Network (ISDN), an Asymmetric Digital Subscriber Line (ADSL), or any other Internet line with an upper limit on at least one of the communication speed and communication volume. While communication using the communication line L2 has the advantage of being inexpensive, it also has the disadvantage of being slow and having an upper limit on the communication volume that can be used per month.

[0018] The communication line L3 is an example of a "third communication line." The communication line L3 is a fixed line using a wired LAN such as an optical line or a wireless LAN such as Wi-Fi, and can transmit large amounts of data at high speed between the remote terminal 30 and the server device 40 via a terminal device 80 (described later).

[0019] The communication line L2 is more limited in at least one of the communication volume and the communication speed than the communication lines L1 and L3. For example, the communication lines L1 and L3 do not have upper limits on the communication volume, or the upper limit is higher than the upper limit on the communication volume of the communication line L2. The upper limit on the communication volume of the communication line L2 is set in advance and is lower than the upper limits on the communication volume of the communication lines L1 and L3.

[0020] Fig. 2 is a diagram showing the functional configuration of the air conditioning system 1 according to Embodiment 1. As shown in Fig. 2, the air conditioning system 1 includes an air conditioning management device 10 and a local terminal 20 located in a first building, a remote terminal 30 and a terminal device 80 located in a second building, and a server device 40 and a relay device 70 on the cloud.

[0021] The air conditioning management device 10 includes a control device 11 , a memory 12 , a storage device 13 , a display 14 , an input device 15 , an external communication unit 16 , a local communication unit 17 , and a device communication unit 18 .

[0022] The control device 11 is a computing entity (computer) that executes various programs to perform various processes. The control device 11 is configured with a processor such as a CPU (central processing unit) or an MPU (microprocessing unit). A processor, which is an example of the control device 11, has the function of executing various processes by executing programs. However, some or all of these functions may be implemented using dedicated hardware circuits such as an ASIC (application-specific integrated circuit) or an FPGA (field-programmable gate array). The term "processor" is not limited to a processor in the narrow sense that executes processes using stored programs, such as a CPU or an MPU, but may also include hardwired circuits such as an ASIC or an FPGA. Therefore, the term "processor," which is an example of the control device 11, can also be interpreted as a processing circuitry in which processes are predefined by computer-readable code and / or hardwired circuits. The control device 11 may be configured on a single chip or multiple chips.

[0023] The memory 12 includes a volatile storage area (e.g., a working area) that temporarily stores program code, work memory, etc. when the control device 11 executes various programs. Examples of the memory 12 include volatile memories such as dynamic random access memory (DRAM) and static random access memory (SRAM), and non-volatile memories such as read-only memory (ROM) and flash memory.

[0024] The storage device 13 stores various programs and various data executed by the control device 11. For example, as shown in FIG. 2 , the storage device 13 stores a display program (a program written in HTML, CSS, or the like) executed by the control device 11, air conditioning data referenced by the control device 11, and the like. The storage device 13 may be one or more non-transitory computer-readable media, or may be one or more computer-readable storage media. Examples of the storage device 13 include a hard disk drive (HDD) and a solid state drive (SSD).

[0025] The display 14 displays a predetermined screen in accordance with the control of the control device 11. For example, the control device 11 executes a display program to generate a default screen for an air conditioning management screen, which will be described later with reference to Fig. 3, and inputs air conditioning data into the default screen to generate the air conditioning management screen, and displays the air conditioning management screen on the display 14.

[0026] The input device 15 is an operation unit for receiving predetermined information input by a user, and includes a mouse, a keyboard, a touch panel, or the like.

[0027] The external communication unit 16 is an interface for communicating with the relay device 70 over the communication line L2 via the communication base station 50. For example, the air conditioning management device 10 is equipped with a subscriber identity module (SIM) card (not shown) and can communicate with the relay device 70 over the communication line L2 provided by a virtual mobile communications service provider, which is generally used by mobile terminals and the like. The control device 11 transmits air conditioning data to the relay device 70 by communicating with the relay device 70 using the communication line L2 via the external communication unit 16.

[0028] The local communication unit 17 is an interface for communicating with a local communication unit 27 of the local terminal 20 via the communication line L1. The control device 11 communicates with the local terminal 20 via the local communication unit 17 to transmit air conditioning data to the local terminal 20.

[0029] The device communication unit 18 is an interface for connecting to the air conditioner 60. The control device 11 communicates with the air conditioner 60 via the device communication unit 18 to receive air conditioning data from the air conditioner 60 and transmit control data to the air conditioner 60.

[0030] The local terminal 20 includes a control device 21 , a memory 22 , a storage device 23 , a display 24 , an input device 25 , and a local communication unit 27 .

[0031] The control device 21 is a computing entity (computer) that executes various programs to perform various processes. The control device 21 has a configuration similar to that of the control device 11, and is configured, for example, by a processor. The "processor" that is an example of the control device 21 can also be interpreted as a processing circuitry in which processing is defined in advance by computer-readable code and / or hardwired circuits.

[0032] The memory 22 includes a volatile storage area (for example, a working area) that temporarily stores program code, work memory, etc. when the control device 21 executes various programs. The memory 22 has a configuration similar to that of the memory 12 and is configured, for example, as a volatile memory or a non-volatile memory.

[0033] The storage device 23 stores various programs and various data executed by the control device 21. The storage device 23 has a configuration similar to that of the storage device 13, and may be one or more non-transitory computer readable media, or one or more computer readable storage media.

[0034] The display 24 displays a predetermined screen in accordance with the control of the control device 21. For example, the display 24 displays an air conditioning management screen, which will be described later, generated based on the air conditioning data and a display program.

[0035] The input device 25 is an operation unit for receiving predetermined information input by a user, and includes a mouse, a keyboard, a touch panel, or the like.

[0036] The local communication unit 27 is an interface for communicating with the local communication unit 17 of the air conditioning management device 10 via the communication line L1. The control device 21 receives air conditioning data from the air conditioning management device 10 by communicating with the air conditioning management device 10 via the local communication unit 27.

[0037] The remote terminal 30 includes a control device 31 , a memory 32 , a storage device 33 , a display 34 , an input device 35 , and an external communication unit 36 ​​.

[0038] The control device 31 is a computing entity (computer) that executes various programs to perform various processes. The control device 31 has a configuration similar to that of the control device 11, and is configured, for example, by a processor. The "processor" that is an example of the control device 31 can also be interpreted as a processing circuitry in which processing is defined in advance by computer-readable code and / or hardwired circuits.

[0039] The memory 32 includes a volatile storage area (for example, a working area) that temporarily stores program code, work memory, etc. when the control device 31 executes various programs. The memory 32 has a configuration similar to that of the memory 12 and is configured, for example, as a volatile memory or a non-volatile memory.

[0040] The storage device 33 stores various programs and various data executed by the control device 31. The storage device 33 has a configuration similar to that of the storage device 13, and may be one or more non-transitory computer readable media, or one or more computer readable storage media.

[0041] The display 34 displays a predetermined screen in accordance with the control of the control device 31. For example, the display 34 displays an air conditioning management screen, which will be described later, generated based on the air conditioning data and a display program.

[0042] The input device 35 is an operation unit for receiving predetermined information input by a user, and includes a mouse, a keyboard, a touch panel, or the like.

[0043] The external communication unit 36 ​​is an interface for communicating with the external communication unit 46 of the server device 40 via the terminal device 80 and the communication line L3, and for communicating with the relay device 70 via the terminal device 80 and the communication line L2. The control device 31 receives air conditioning data from the air conditioning management device 10 by communicating with the relay device 70 via the external communication unit 36.

[0044] The server device 40 includes a control device 41 , a memory 42 , a storage device 43 , and an external communication unit 46 .

[0045] The control device 41 is a computing entity (computer) that executes various programs to perform various processes. The control device 41 has a configuration similar to that of the control device 11, and is configured, for example, by a processor. The "processor" that is an example of the control device 41 can also be interpreted as a processing circuitry in which processing is defined in advance by computer-readable code and / or hardwired circuits.

[0046] The memory 42 includes a volatile storage area (for example, a working area) that temporarily stores program code, work memory, etc. when the control device 41 executes various programs. The memory 42 has a configuration similar to that of the memory 12 and is configured, for example, as a volatile memory or a non-volatile memory.

[0047] The storage device 43 stores various programs and various data executed by the control device 41. The storage device 43 has a configuration similar to that of the storage device 13, and may be one or more non-transitory computer readable media, or one or more computer readable storage media.

[0048] The external communication unit 46 is an interface for communicating with the external communication unit 36 ​​of the remote terminal 30 via the terminal device 80 and communication line L3, and for communicating with the relay device 70 via the terminal device 80 and communication line L2.

[0049] The relay device 70 is located between the communication base station 50 and the terminating device 80, and communicates with the communication base station 50 via a communication line L2, and also communicates with the terminating device 80 via the communication line L2.

[0050] The termination device 80 is located between each of the remote terminal 30 and the server device 40 and the relay device 70, and communicates with each of the remote terminal 30 and the server device 40 via communication line L3, and communicates with the relay device 70 via communication line L2.

[0051] In the air conditioning system 1 configured as described above, the air conditioning management device 10, the local terminal 20, and the remote terminal 30 can each display a common screen generated based on the air conditioning data.

[0052] Figure 3 is a diagram showing an example of an air conditioning management screen displayed in the air conditioning system according to Embodiment 1. Figure 3 shows a common default screen displayed on the display 14 of the air conditioning management device 10, the display 24 of the local terminal 20, and the display 34 of the remote terminal 30, as well as a common air conditioning management screen generated by inputting air conditioning data into the default screen. The air conditioning data for each air conditioner 60 is displayed on the air conditioning management screen.

[0053] The air conditioning management device 10, the local terminal 20, and the remote terminal 30 each generate a default screen by executing a display program. The default screen is, for example, a standard screen in which the air conditioning data for the air conditioners 60 installed in each room is blank, and the air conditioning data is displayed in the blank portion of each air conditioner 60, allowing the user to check the air conditioning data for each air conditioner 60. The air conditioning management device 10, the local terminal 20, and the remote terminal 30 each generate an air conditioning management screen by inputting the air conditioning data into the default screen, and display the air conditioning management screen on each display 14, 24, 34. Note that the default screen and the air conditioning management screen are not limited to the example of FIG. 3 and may be displayed in other forms.

[0054] In this way, by generating an air conditioning management screen using a common display program in each of the air conditioning management device 10, the local terminal 20, and the remote terminal 30, the user can display the air conditioning management screen common to the air conditioning management device 10 using browser-enabled devices such as PCs or smartphones, such as the local terminal 20 and the remote terminal 30. Furthermore, the user does not need to install a dedicated application for displaying the air conditioning management screen in the local terminal 20 and the remote terminal 30, and can easily display the air conditioning management screen using a standard web browser. Furthermore, by displaying a common air conditioning management screen in the air conditioning management device 10, the local terminal 20, and the remote terminal 30, the user only needs to learn how to operate one air conditioning management screen, and does not need to learn different operation methods for the air conditioning management device 10, the local terminal 20, and the remote terminal 30, thereby improving user convenience.

[0055] 3, the air conditioning management screen displays air conditioning data for air conditioner A installed in room A, air conditioner B installed in the break room, air conditioner C installed in room B, air conditioner D installed in conference room A, air conditioner E installed in the president's office, and air conditioner F installed in conference room B. The air conditioning data includes the set temperature, room temperature, pipe temperature, power consumption, etc. This air conditioning data is detected by sensors (not shown) and acquired by the air conditioning management device 10.

[0056] In this way, the air conditioning system 1 is configured so that the air conditioning management device 10, the local terminal 20, and the remote terminal 30 each display a common air conditioning management screen generated based on the display program and air conditioning data.

[0057] As described above, when the local terminal 20 and the remote terminal 30 display an air conditioning management screen such as that shown in Fig. 3 on a web browser, they need to use not only air conditioning data but also a display program. Moreover, because the display program is a program for displaying a graphical interface screen, the communication volume is larger than that of air conditioning data such as numerical values.

[0058] Because the local terminal 20 is located within a range where a LAN connection with the air conditioning management device 10 is possible (for example, within the first building), it is possible to acquire air conditioning data and a display program from the air conditioning management device 10 via a communication line L1 that is capable of high-capacity communication using a fixed line or wireless LAN. Therefore, even if the local terminal 20 receives air conditioning data and a display program from the air conditioning management device 10 every time it attempts to display the air conditioning management screen, there is no risk that the amount of communication consumed will prematurely reach the upper limit of the available communication amount.

[0059] On the other hand, because the remote terminal 30 is located outside the range where LAN connection with the air conditioning management device 10 is possible (e.g., within the second building), it cannot use the communication line L1, which is capable of high-capacity communication, and must instead obtain the air conditioning data and display program from the air conditioning management device 10 via the communication line L2, which is provided by a virtual mobile communications carrier and has limited communication volume or communication speed. Therefore, if the remote terminal 30 attempts to receive the air conditioning data and display program from the air conditioning management device 10 every time it attempts to display the air conditioning management screen, the amount of communication consumed may reach the upper limit of the available communication volume early or the communication time may become long. As a result, the remote terminal 30 may not be able to properly receive the air conditioning data and display program from the air conditioning management device 10, or the reception time may become long, causing the air conditioning management screen to take a long time to display.

[0060] Therefore, the air conditioning system 1 according to embodiment 1 is configured so that the display program is stored in advance in the server device 40, and the remote terminal 30 acquires air conditioning data from the air conditioning management device 10 via communication line L2, while acquiring the display program from the server device 40 via communication line L3.

[0061] Data communication in the air conditioning system 1 according to the first embodiment will be described with reference to Figure 4. Figure 4 is a diagram showing an example of data communication in the air conditioning system 1 according to the first embodiment. As shown in Figure 4, in the air conditioning system 1, the air conditioning management device 10 stores a display program in the storage device 13, and the server device 40 also stores a display program in advance in the storage device 43. Note that the server device 40 may acquire the display program in advance from the air conditioning management device 10 via the communication line L2, or may acquire the display program in advance from an operation terminal other than the air conditioning management device 10.

[0062] The local terminal 20 acquires the air conditioning data and the display program via the communication line L1 from the air conditioning management device 10. The local terminal 20 generates a default screen by executing the display program, and generates an air conditioning management screen by inputting air conditioning data into the default screen, and displays the air conditioning management screen on the display 24.

[0063] The remote terminal 30 acquires a display program from the server device 40 via communication line L3, and acquires air conditioning data from the air conditioning management device 10 via communication line L2. The remote terminal 30 generates a default screen by executing the display program, and generates an air conditioning management screen by inserting air conditioning data into the default screen, and displays the air conditioning management screen on the display 34. In other words, regardless of the content of the air conditioning data, the remote terminal 30 acquires the display program for generating a standard default screen from the server device 40, not from the air conditioning management device 10, and acquires air conditioning data that can change depending on the operating state of the air conditioner 60 from the air conditioning management device 10.

[0064] In this way, the remote terminal 30 acquires air conditioning data using the communication line L2, which has at least one of the communication volume and the communication speed limited more than the communication line L1, while acquiring the display program, which has a larger communication volume than the air conditioning data, from the server device 40 using the communication line L3, thereby reducing communication costs by using the communication line L2 provided by the virtual mobile communications carrier and displaying an air conditioning control screen that is common to the local terminal 20. In other words, even when communication is performed between the air conditioning management device 10 and the remote terminal 30 using the inexpensive communication line L2 provided by the virtual mobile communications carrier, the air conditioning system 1 can reduce only the communication volume between the air conditioning management device 10 and the remote terminal 30 without reducing functions related to the display of the air conditioning control screen, and can provide the user with an air conditioning control screen that has a common interface among the air conditioning management device 10, the local terminal 20, and the remote terminal 30.

[0065] In the above example, the air conditioning management screen of Fig. 3 is shown as an example of a common screen displayed on the air conditioning management device 10, the local terminal 20, and the remote terminal 30, but other types of screens may be used as long as they are screens for displaying air conditioning data. For example, the air conditioning management screen of Fig. 3 is a screen on which the user can view air conditioning data, but it may also be a screen on which the user can set the operating status (e.g., set temperature) of the air conditioner 60.

[0066] Embodiment 2 An air conditioning system 1 according to embodiment 2 will be described with reference to Fig. 5. Note that with regard to the air conditioning system 1 according to embodiment 2, only configurations and functions that are different from those of the air conditioning system 1 according to embodiment 1 will be described, and descriptions of configurations and functions that are common to the air conditioning system 1 according to embodiment 1 may be omitted. Fig. 5 is a diagram showing an example of an air conditioning management screen displayed in the air conditioning system 1 according to embodiment 2.

[0067] Because the remote terminal 30 acquires air conditioning data from the air conditioning control device 10 via communication line L2, it is preferable that the amount of air conditioning data communication be as small as possible. For example, the air conditioning data includes multiple types of data such as the set temperature, room temperature, pipe temperature, and power consumption, but if all of this data were to be transmitted from the air conditioning control device 10 to the remote terminal 30 on a regular basis without omission, the amount of air conditioning data communication could increase.

[0068] Therefore, the air conditioning system 1 of embodiment 2 is configured so that the types of air conditioning data that the remote terminal 30 acquires from the air conditioning management device 10 are the same as the types of air conditioning data that the local terminal 20 acquires from the air conditioning management device 10, or are fewer than the types of air conditioning data that the local terminal 20 acquires from the air conditioning management device 10.

[0069] For example, the remote terminal 30 may request only the air conditioning data desired by the user from the air conditioning management device 10 out of multiple types of air conditioning data based on user input acquired by the input device 35, and the air conditioning management device 10 may transmit only the air conditioning data desired by the user requested from the remote terminal 30 to the remote terminal 30. The remote terminal 30 may acquire only the air conditioning data desired by the user from the air conditioning management device 10 and reflect it on the air conditioning management screen.

[0070] In the example of Figure 5, the local terminal 20 acquires all of the set temperature, room temperature, pipe temperature, and power consumption from the air conditioning management device 10 and reflects them on the air conditioning management screen, while the remote terminal 30 acquires only the set temperature, room temperature, and power consumption excluding the pipe temperature from the air conditioning management device 10 and reflects them on the air conditioning management screen.

[0071] In this way, the user can reduce the amount of air conditioning data transmitted from the air conditioning management device 10 to the remote terminal 30 via communication line L2 by obtaining only the air conditioning data that the user considers necessary for management purposes from the air conditioning management device 10 and displaying it on the remote terminal 30.

[0072] The user may set the type of air conditioning data that the remote terminal 30 will reflect on the air conditioning management screen using the input device 15 of the air conditioning management device 10, instead of the input device 35 of the remote terminal 30. In this case, the air conditioning management device 10 may transmit only the air conditioning data desired by the user out of multiple types of air conditioning data to the remote terminal 30 based on user input acquired by the input device 15, and the remote terminal 30 may acquire only the air conditioning data desired by the user from the air conditioning management device 10 and reflect it on the air conditioning management screen.

[0073] In addition, the air conditioning system 1 of embodiment 2 may be configured so that the frequency at which the remote terminal 30 acquires air conditioning data from the air conditioning management device 10 is the same as the frequency at which the local terminal 20 acquires air conditioning data from the air conditioning management device 10, or is lower than the frequency at which the local terminal 20 acquires air conditioning data from the air conditioning management device 10.

[0074] For example, the remote terminal 30 may set the frequency at which it requests air conditioning data from the air conditioning management device 10 based on user input acquired by the input device 35. Furthermore, the remote terminal 30 may set the frequency at which it requests air conditioning data for each of multiple types of air conditioning data based on user input acquired by the input device 35. The air conditioning management device 10 may periodically transmit each piece of air conditioning data to the remote terminal 30 according to the frequency specified by the remote terminal 30. The remote terminal 30 may obtain the air conditioning data periodically transmitted from the air conditioning management device 10 and reflect it on the air conditioning management screen.

[0075] In the example of Figure 5, the local terminal 20 obtains each piece of air conditioning data, such as the set temperature, indoor temperature, pipe temperature, and power consumption, from the air conditioning management device 10 every minute and reflects it on the air conditioning management screen, while the remote terminal 30 obtains the set temperature from the air conditioning management device 10 every minute, the indoor temperature from the air conditioning management device 10 every 10 minutes, and the power consumption from the air conditioning management device 10 every hour and reflects it periodically on the air conditioning management screen.

[0076] In this way, the user can reduce the amount of air conditioning data transmitted from the air conditioning management device 10 to the remote terminal 30 via communication line L2 by increasing the update frequency of air conditioning data that the user deems necessary to check frequently for management purposes, while decreasing the update frequency of air conditioning data that the user deems unnecessary to check frequently.

[0077] The user may set the frequency at which the remote terminal 30 reflects the air conditioning data on the air conditioning management screen using the input device 15 of the air conditioning management device 10, not just the input device 35 of the remote terminal 30. In this case, the air conditioning management device 10 may transmit each type of air conditioning data to the remote terminal 30 at a frequency set for each type of air conditioning data based on user input acquired by the input device 15, and the remote terminal 30 may periodically acquire each type of air conditioning data from the air conditioning management device 10 and reflect it on the air conditioning management screen.

[0078] In this way, the air conditioning system 1 can keep the communication volume of air conditioning data that the remote terminal 30 acquires from the air conditioning management device 10 smaller than the communication volume of air conditioning data that the local terminal 20 acquires from the air conditioning management device 10. As a result, the air conditioning system 1 can display an air conditioning management screen on the remote terminal 30 that reflects the air conditioning data desired by the user, while reducing communication costs by using the communication line L2 provided by the virtual mobile communications operator.

[0079] Embodiment 3 An air conditioning system 1 according to embodiment 3 will be described with reference to Figures 6 and 7. Note that with regard to the air conditioning system 1 according to embodiment 3, only configurations and functions that are different from those of the air conditioning system 1 according to embodiment 1 will be described, and descriptions of configurations and functions that are common to the air conditioning system 1 according to embodiment 1 may be omitted. Figure 6 is a diagram showing an example of an air conditioning management screen displayed in the air conditioning system 1 according to embodiment 3.

[0080] An air conditioning management device 10 may be connected to multiple air conditioners 60, for example, on the order of 100 units. However, considering that there is a limit to the size of the display 34 on which the air conditioning management screen of Figure 3 is displayed, it is difficult to display the air conditioning data for all air conditioners 60 within the scope of a single air conditioning management screen.

[0081] Therefore, the air conditioning system 1 according to the third embodiment is configured so that the remote terminal 30 acquires from the air conditioning management device 10 only the air conditioning data relating to at least one air conditioner 60 included in the screen currently being displayed on the display 34 of the remote terminal 30.

[0082] For example, as shown in FIG. 6 , the remote terminal 30 can display on the display 34 a floor image showing floors in a building where air conditioners 60 are installed. The user can increase or decrease the number of air conditioners 60 included in the air conditioning management screen displayed on the display 34 by using the input device 35 (e.g., a touch panel) to drag, pinch in to shrink, or pinch out to enlarge the floor image displayed on the display 34. The remote terminal 30 may request from the air conditioning management device 10 only air conditioning data related to the air conditioners 60 included in the floor image moved, reduced, or enlarged on the screen of the display 34 by the user's operation, and the air conditioning management device 10 may transmit only the air conditioning data requested by the remote terminal 30 to the remote terminal 30. The remote terminal 30 may obtain only the air conditioning data desired by the user from the air conditioning management device 10 and reflect it on the air conditioning management screen.

[0083] 6, the remote terminal 30 acquires from the air conditioning control device 10 only the air conditioning data related to air conditioner A in room A, air conditioner C in room B, and air conditioner E in the president's office, which are included in the air conditioning control screen currently displayed on the display 34, as data to be updated, and reflects this data on the air conditioning control screen. On the other hand, the remote terminal 30 does not acquire from the air conditioning control device 10 the air conditioning data related to air conditioners B, D, and F to J, which are not included in the air conditioning control screen currently displayed on the display 34, as data not to be updated, and does not reflect this data on the air conditioning control screen. Note that the remote terminal 30 may acquire important data that is more important than the air conditioning data (for example, abnormality data for air conditioner 60) from the air conditioning control device 10 as data to be updated, even if the data is related to air conditioners B, D, and F to J, which are not included in the air conditioning control screen currently displayed on the display 34.

[0084] Note that the example in Figure 6 shows an air conditioning management screen displayed on the display 34 of the remote terminal 30, but even in the air conditioning management screen displayed on the display 24 of the local terminal 20, only the air conditioning data displayed by the user's dragging, pinching in, or pinching out may be reflected on the air conditioning management screen.

[0085] Data communication in the air conditioning system 1 according to embodiment 3 will be specifically described with reference to Fig. 7. Fig. 7 is a diagram showing an example of data communication in the air conditioning system 1 according to embodiment 3. As shown in Fig. 7, the local terminal 20 acquires a floor image from the air conditioning management device 10. As a result, by displaying the floor image on the display 24, the local terminal 20 can acquire from the air conditioning management device 10 only the air conditioning data displayed by the user's dragging, pinching in, or pinching out, and reflect this on the air conditioning management screen.

[0086] Meanwhile, the user uses the work terminal 90 to upload a floor image from the work terminal 90 to the server device 40. Note that the user may also use the air conditioning management device 10 or the local terminal 20 to upload the floor image from the air conditioning management device 10 or the local terminal 20 to the server device 40. The remote terminal 30 acquires the floor image from the server device 40. In this way, by displaying the floor image on the display 34, the remote terminal 30 can acquire from the air conditioning management device 10 only the air conditioning data displayed by the user's dragging, pinching in, or pinching out, and reflect it on the air conditioning management screen.

[0087] In this way, the remote terminal 30 can reduce the amount of communication of air conditioning data acquired from the air conditioning management device 10 by acquiring only the air conditioning data related to the air conditioners 60 included in the floor image displayed on the display 34 from the air conditioning management device 10 without acquiring air conditioning data related to all air conditioners 60 from the air conditioning management device 10.

[0088] Fourth Embodiment An air conditioning system 1 according to a fourth embodiment will be described with reference to Fig. 8. Note that with respect to the air conditioning system 1 according to the fourth embodiment, only configurations and functions that differ from those of the air conditioning system 1 according to the first embodiment will be described, and descriptions of configurations and functions that are common to the air conditioning system 1 according to the first embodiment may be omitted. Fig. 8 is a diagram showing an example of data communication in the air conditioning system 1 according to the fourth embodiment.

[0089] For example, a system may be envisioned in which the air conditioning system 1 includes multiple remote terminals 30, and each remote terminal 30 displays air conditioning data acquired from the air conditioning management device 10. If each remote terminal 30 individually acquires air conditioning data from the air conditioning management device 10, the air conditioning management device 10 will end up sending the same air conditioning data to each remote terminal 30, which is wasteful in terms of reducing communication traffic.

[0090] Therefore, the air conditioning system 1 according to the fourth embodiment is configured such that at least one of the multiple remote terminals 30 is a parent device and the other remote terminals 30 are child devices, and only the parent device acquires air conditioning data from the air conditioning management device 10, while the child devices acquire air conditioning data from the parent device. Furthermore, if the parent device is unable to communicate with the air conditioning management device 10, at least one of the child devices may be promoted to a parent device and acquire air conditioning data from the air conditioning management device 10.

[0091] For example, as shown in FIG. 8 , the air conditioning system 1 includes multiple remote terminals 30A, 30B, and 30C in the second building. Of the multiple remote terminals 30A, 30B, and 30C, the remote terminal 30A is set as a parent device, and the remote terminals 30B and 30C are set as child devices. The remote terminal 30A is an example of a "first remote terminal" and can communicate with the air conditioning management device 10 via communication lines L2 and L3. The remote terminals 30B and 30C are an example of a "second remote terminal" and can communicate with the remote terminal 30A via communication line L3. The remote terminal 30A acquires air conditioning data from the air conditioning management device 10. The remote terminals 30B and 30C acquire air conditioning data from the remote terminal 30A, not from the air conditioning management device 10. If the remote terminal 30A becomes unable to communicate with the air conditioning management device 10, the remote terminal 30B or the remote terminal 30C is promoted to the master device and acquires air conditioning data from the air conditioning management device 10.

[0092] In this way, the air conditioning management device 10 can reduce the amount of air conditioning data transmitted to the remote terminals 30 by transmitting the air conditioning data only to at least one remote terminal 30 that is the parent device, rather than transmitting the air conditioning data individually to each of the multiple remote terminals 30.

[0093] Fifth Embodiment An air conditioning system 1 according to a fifth embodiment will be described with reference to Figures 9 and 10. Note that with respect to the air conditioning system 1 according to the fifth embodiment, only the configurations and functions that are different from those of the air conditioning system 1 according to the first embodiment will be described, and descriptions of the configurations and functions that are common to the air conditioning system 1 according to the first embodiment may be omitted.

[0094] For example, in the air conditioning system 1, each of the remote terminal 30 and the local terminal 20 may acquire, in addition to the air conditioning data, important data that is more important than the air conditioning data from the air conditioning control device 10. The important data includes, for example, abnormality information related to an abnormality in at least one air conditioner 60. Such abnormality information includes information useful for analyzing when an air conditioner 60 malfunctions or breaks down.

[0095] FIG. 9 is a diagram showing an example of data communication during normal communication in the air conditioning system 1 according to embodiment 5. As shown in FIG. 9 , the local terminal 20 acquires air conditioning data and important data from the air conditioning management device 10 via communication line L1 and displays the acquired air conditioning data and important data on the display 24. This allows the user to check the air conditioning data and important data using the local terminal 20. Meanwhile, the remote terminal 30 acquires air conditioning data and important data from the air conditioning management device 10 via communication line L2 and displays the acquired air conditioning data and important data on the display 34. This allows the user to check the air conditioning data and important data using the remote terminal 30 in the same way as using the local terminal 20.

[0096] Fig. 10 is a diagram showing an example of data communication during a communication abnormality in the air conditioning system 1 according to embodiment 5. As shown in Fig. 10, when communication on communication line L2 is abnormal, the remote terminal 30 is unable to acquire air conditioning data and important data from the air conditioning management device 10, and therefore is unable to display the air conditioning data and important data on the display 34. Here, because abnormalities in the air conditioner 60 may include highly urgent abnormalities such as refrigerant leakage, it is preferable to display important data on the display 34 as much as possible.

[0097] Therefore, in the air conditioning system 1 according to the fifth embodiment, as shown in Fig. 9, when communication on communication line L2 is normal, the server device 40 acquires important data from the air conditioning management device 10 via communication line L2 and stores it in the storage device 43. Then, as shown in Fig. 10, when communication on communication line L2 is abnormal, the remote terminal 30 acquires important data from the server device 40 via communication line L3, not from the air conditioning management device 10, and displays it on the display 34.

[0098] In addition, if the remote terminal 30 does not receive a response signal called a PINGPONG or a heartbeat, which is periodically sent from the air conditioning management device 10, for a predetermined period of time, it can determine that a communication abnormality has occurred on the communication line L2.

[0099] In this way, when the remote terminal 30 is unable to acquire important data from the air conditioning management device 10 due to a communication abnormality on the communication line L2, it can acquire important data cached in the server device 40 via the communication line L3 and display it on the display 34. This allows the user to check the important data immediately before the communication abnormality occurred on the remote terminal 30, even if a communication abnormality occurs on the communication line L2. Furthermore, when communication on the communication line L2 is normal, the remote terminal 30 acquires important data from the air conditioning management device 10, thereby reducing the access load on the server device 40.

[0100] Embodiment 6 An air conditioning system 1 according to embodiment 6 will be described. Note that with regard to the air conditioning system 1 according to embodiment 6, only the configurations and functions that are different from those of the air conditioning system 1 according to embodiment 1 will be described, and descriptions of the configurations and functions that are common to the air conditioning system 1 according to embodiment 1 may be omitted.

[0101] While the display program stored in the server device 40 is always updated to the latest version, the display program stored in the air conditioning management device 10 may remain at an old version that was in use when the air conditioning management device 10 was installed. In such cases, the screen of the remote terminal 30 displayed using the display program obtained from the server device 40 may differ from the screen of the local terminal 20 displayed using the display program obtained from the air conditioning management device 10.

[0102] Therefore, in the air conditioning system 1 according to the sixth embodiment, the air conditioning data acquired by the remote terminal 30 from the air conditioning management device 10 may include version information indicating the version of the display program stored by the air conditioning management device 10. Furthermore, the remote terminal 30 may compare the version of the display program stored by the air conditioning management device 10 with the version of the display program acquired from the server device 40 based on the version information, and if the two versions are different, may execute a notification process to make the version of the display program stored by the air conditioning management device 10 and the version of the display program acquired from the server device 40 the same.

[0103] For example, as a notification process, the remote terminal 30 may display a screen to notify the user that the version of the display program stored in the air conditioning management device 10 is different from the version of the display program obtained from the server device 40, or may display a screen to prompt the user to update the version of the display program stored in the air conditioning management device 10 to the latest version, the same as the version of the display program obtained from the server device 40.

[0104] In this way, the user can check on the screen displayed on the remote terminal 30 whether the version of the display program stored in the air conditioning management device 10 is the same as the version of the display program acquired from the server device 40, and if the two are different, the version of the display program stored in the air conditioning management device 10 can be updated to the same latest version as the version of the display program acquired from the server device 40. For example, by having the air conditioning management device 10 communicate with the server device 40, the user can download the latest version of the display program from the server device 40 to the air conditioning management device 10, thereby making the version of the display program stored in the air conditioning management device 10 the same as the version of the display program acquired from the server device 40.

[0105] This allows the remote terminal 30 to make the version of the display program obtained from the server device 40 the same as the version of the display program stored by the air conditioning management device 10, thereby allowing it to display a screen that is common to the local terminal 20.

[0106] (Summary) The air conditioning system 1 of the present disclosure includes at least one air conditioner 60, an air conditioning management device 10 that manages the at least one air conditioner 60, a local terminal 20 that can communicate with the air conditioning management device 10 via communication line L1, at least one remote terminal 30 that can communicate with the air conditioning management device 10 via communication line L2, and a server device 40 that can communicate with the at least one remote terminal 30 via communication line L3. The communication line L2 is more limited in at least one of the communication amount and communication speed than each of the communication lines L1 and L3. The air conditioning management device 10 stores air conditioning data related to the at least one air conditioner 60 and a display program for displaying the air conditioning data. The server device 40 stores the display program. The local terminal 20 acquires the air conditioning data and the display program from the air conditioning management device 10 via communication line L1 and displays the air conditioning data based on the acquired air conditioning data and display program. At least one remote terminal 30 acquires air conditioning data from the air conditioning management device 10 via communication line L2, while acquiring a display program from the server device 40 via communication line L3, and displays the air conditioning data based on the acquired air conditioning data and display program.

[0107] As a result, the remote terminal 30 can obtain air conditioning data from the air conditioning management device 10 via communication line L2, which has at least one of the communication volume and communication speed limited more than communication line L1, while obtaining the display program from the server device 40 via communication line L3, which has at least one of the communication volume and communication speed not limited more than communication line L2.Therefore, it is possible to display a screen that is common to the local terminal 20 while using communication line L2, which has at least one of the communication volume and communication speed limited more than communication line L1.

[0108] The communication line L2 is a communication line provided by a virtual mobile network operator.

[0109] As a result, the remote terminal 30 can obtain air conditioning data from the air conditioning management device 10 via communication line L2 provided by the virtual mobile telecommunications operator, while obtaining the display program from the server device 40 via communication line L3, so that the remote terminal 30 can display a screen that is common to the local terminal 20 while using communication line L2 provided by the virtual mobile telecommunications operator.

[0110] The communication line L1 is a communication line that uses a wireless LAN or a wired LAN.

[0111] As a result, the remote terminal 30 can obtain air conditioning data from the air conditioning management device 10 via communication line L2, which has at least one of the communication volume and communication speed limited compared to communication line L1 using wireless LAN or wired LAN, while obtaining the display program from the server device 40 via communication line L3, so that a screen common to the local terminal 20 can be displayed while using communication line L2.

[0112] The display program requires more communication traffic than the air conditioning data.

[0113] As a result, the remote terminal 30 can obtain air conditioning data from the air conditioning management device 10 via communication line L2, while obtaining the display program, which requires more communication volume than the air conditioning data, from the server device 40 via communication line L3, so that a screen common to the local terminal 20 can be displayed while using communication line L2.

[0114] The types of air conditioning data that at least one remote terminal 30 acquires from the air conditioning management device 10 are the same as the types of air conditioning data that the local terminal 20 acquires from the air conditioning management device 10, or are fewer than the types of air conditioning data that the local terminal 20 acquires from the air conditioning management device 10.

[0115] As a result, the remote terminal 30 obtains and displays only the air conditioning data that the user considers necessary from the air conditioning management device 10, thereby reducing the amount of air conditioning data transmitted from the air conditioning management device 10 via communication line L2.

[0116] The frequency at which at least one remote terminal 30 acquires air conditioning data from the air conditioning management device 10 is the same as the frequency at which the local terminal 20 acquires air conditioning data from the air conditioning management device 10, or is lower than the frequency at which the local terminal 20 acquires air conditioning data from the air conditioning management device 10.

[0117] As a result, the remote terminal 30 can increase the update frequency of air conditioning data that the user considers necessary to check frequently, while decreasing the update frequency of air conditioning data that the user considers unnecessary to check frequently, thereby reducing the amount of communication of air conditioning data obtained from the air conditioning management device 10 via the communication line L2.

[0118] At least one remote terminal 30 acquires from the air conditioning management device 10 only the air conditioning data relating to at least one air conditioner 60 included in the currently displayed screen.

[0119] This allows the remote terminal 30 to obtain only the air conditioning data related to the air conditioner 60 included in the floor image displayed on the display 34 from the air conditioning management device 10, thereby reducing the amount of communication of air conditioning data obtained from the air conditioning management device 10.

[0120] The at least one remote terminal 30 includes a remote terminal 30A capable of communicating with the air conditioning management device 10, and remote terminals 30B and 30C capable of communicating with the remote terminal 30A. The remote terminal 30A acquires air conditioning data from the air conditioning management device 10. The remote terminals 30B and 30C acquire the air conditioning data from the remote terminal 30A.

[0121] As a result, the air conditioning management device 10 can reduce the amount of air conditioning data transmitted to the remote terminals 30A, 30B, and 30C by transmitting the air conditioning data only to at least one remote terminal 30A, which is the parent device, without transmitting the air conditioning data individually to each of the multiple remote terminals 30A, 30B, and 30C.

[0122] The air conditioning data includes version information indicating the version of the display program stored by the air conditioning management device 10. Based on the version information, at least one remote terminal 30 compares the version of the display program stored by the air conditioning management device 10 with the version of the display program acquired from the server device 40.

[0123] This allows the remote terminal 30 to determine whether the version of the display program acquired from the server device 40 is the same as the version of the display program stored in the air conditioning management device 10 .

[0124] When the version of the display program stored by the air conditioning management device 10 differs from the version of the display program acquired from the server device 40, at least one remote terminal 30 executes a notification process to make the version of the display program stored by the air conditioning management device 10 the same as the version of the display program acquired from the server device 40.

[0125] This allows the remote terminal 30 to make the version of the display program obtained from the server device 40 the same as the version of the display program stored by the air conditioning management device 10.For example, if the version of the display program stored by the air conditioning management device 10 is older than the version of the display program obtained from the server device 40, the version of the display program stored by the air conditioning management device 10 can be updated to display a screen that is common to the local terminal 20.

[0126] When communication line L2 is normal, server device 40 acquires and stores important data that is more important than air conditioning data from air conditioning management device 10 via communication line L2. At least one remote terminal 30 acquires important data from air conditioning management device 10 via communication line L2 when communication line L2 is normal, and acquires important data from server device 40 when communication line L2 is abnormal.

[0127] As a result, when the remote terminal 30 is unable to acquire important data from the air conditioning management device 10 due to a communication abnormality on the communication line L2, it can acquire the important data stored in the server device 40 via the communication line L3 and display it on the display 34. Therefore, even if a communication abnormality occurs on the communication line L2, it is possible to display the important data immediately before the communication abnormality occurred on the display 34. Furthermore, when communication on the communication line L2 is normal, the remote terminal 30 acquires important data from the air conditioning management device 10, thereby reducing the access load on the server device 40.

[0128] The important data includes abnormality information regarding an abnormality in at least one air conditioner.

[0129] As a result, even if a communication abnormality occurs on the communication line L2, the remote terminal 30 can display on the display 34 abnormality information relating to the abnormality in the air conditioner immediately before the communication abnormality occurred.

[0130] Although the air conditioning systems 1 according to each of the first to sixth embodiments have been described above, it is possible to combine the configurations and functions of the air conditioning systems 1. For example, one air conditioning system 1 may have all of the configurations and functions of the air conditioning systems 1 according to each of the first to sixth embodiments.

[0131] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present disclosure is defined by the claims, not by the description of the above embodiments, and is intended to include all modifications within the meaning and scope of the claims.

[0132] 1 Air conditioning system, 10 Air conditioning management device, 11, 21, 31, 41 Control device, 12, 22, 32, 42 Memory, 13, 23, 33, 43 Storage device, 14, 24, 34 Display, 15, 25, 35 Input device, 16, 36, 46 External communication unit, 17, 27 Local communication unit, 18 Equipment communication unit, 20 Local terminal, 30, 30A, 30B, 30C Remote terminal, 40 Server device, 50 Communication base station, 60 Air conditioner, 61 Outdoor unit, 62 Indoor unit, 70 Relay device, 80 Termination device, 90 Work terminal, L1, L2, L3 Communication line.

Claims

1. 1. An air conditioning system comprising: at least one air conditioner; an air conditioning control device that controls the at least one air conditioner; a local terminal capable of communicating with the air conditioning control device via a first communication line; at least one remote terminal capable of communicating with the air conditioning control device via a second communication line and with a server device via a third communication line; the second communication line is more limited than the first communication line and the third communication line in at least one of the communication amount and the communication speed, the air conditioning management device stores air conditioning data related to the at least one air conditioner and a display program for displaying the air conditioning data; the server device stores the display program; the on-site terminal acquires the air conditioning data and the display program from the air conditioning control device via the first communication line, and displays the air conditioning data based on the acquired air conditioning data and the display program; An air conditioning system in which the at least one remote terminal acquires the air conditioning data from the air conditioning management device via the second communication line, while acquiring the display program from the server device via the third communication line, and displays the air conditioning data based on the acquired air conditioning data and the display program.

2. The air conditioning system according to claim 1 , wherein the second communication line is a communication line provided by a virtual mobile communication operator.

3. 3. The air conditioning system according to claim 1, wherein the first communication line is a communication line using a wireless LAN or a wired LAN.

4. The air conditioning system according to claim 1 or 2, wherein the display program has a larger communication volume than the air conditioning data.

5. The air conditioning system of claim 1 or claim 2, wherein the types of air conditioning data acquired by the at least one remote terminal from the air conditioning management device are the same as or fewer than the types of air conditioning data acquired by the local terminal from the air conditioning management device.

6. 3. The air conditioning system of claim 1, wherein the frequency at which the at least one remote terminal acquires the air conditioning data from the air conditioning management device is the same as or lower than the frequency at which the local terminal acquires the air conditioning data from the air conditioning management device.

7. The air conditioning system according to claim 1 or 2, wherein the at least one remote terminal acquires from the air conditioning management device only the air conditioning data relating to the at least one air conditioner included in a currently displayed screen.

8. the at least one remote terminal includes a first remote terminal capable of communicating with the air conditioning control device and a second remote terminal capable of communicating with the first remote terminal; the first remote terminal acquires the air conditioning data from the air conditioning control device; The air conditioning system according to claim 1 or 2, wherein the second remote terminal acquires the air conditioning data from the first remote terminal.

9. the server device acquires and stores important data that is more important than the air conditioning data from the air conditioning management device via the second communication line when the second communication line is normal; The at least one remote terminal When the second communication line is normal, the important data is acquired from the air conditioning control device via the second communication line; The air conditioning system according to claim 1 or 2, wherein the important data is acquired from the server device when an abnormality occurs in the second communication line.

10. The air conditioning system according to claim 9 , wherein the important data includes abnormality information relating to an abnormality in the at least one air conditioner.

11. the air conditioning data includes version information indicating a version of the display program stored by the air conditioning control device, 3. The air conditioning system according to claim 1, wherein the at least one remote terminal compares the version of the display program stored in the air conditioning management device with the version of the display program acquired from the server device based on the version information.

12. The air conditioning system of claim 11, wherein, when the version of the display program stored by the air conditioning management device is different from the version of the display program obtained from the server device, the at least one remote terminal executes a notification process to make the version of the display program stored by the air conditioning management device and the version of the display program obtained from the server device the same.