Refrigeration cycle system and program

Abstract

The present disclosure provides a refrigeration cycle system that can increase the likelihood that a refrigeration cycle device will undergo early maintenance. [Solution] The refrigeration cycle system disclosed herein includes a calculation unit that calculates at least one of an increase rate of a second electricity cost at a refrigerant filling rate obtained based on operating data of the refrigeration cycle device and an increase amount of the second electricity cost relative to a first electricity cost when the refrigerant filling state of the refrigeration cycle device is fully filled, and an output unit that outputs at least one of the increase rate of the second electricity cost and the increase amount of the second electricity cost calculated by the calculation unit.

Description

[Technical Field]

[0001] The present disclosure relates to a refrigeration cycle system and a program. [Background technology]

[0002] Patent Document 1 discloses a refrigerant leakage management system that determines whether or not a refrigerant leaks from a refrigerant circuit based on the detection result of a refrigerant leakage state detected by a detection unit. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-179215 Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure provides a refrigeration cycle system and a program that can increase the likelihood that a refrigeration cycle device will undergo early maintenance. [Means for solving the problem]

[0005] The refrigeration cycle system of the present disclosure includes a calculation unit that calculates at least one of an increase rate of a second electricity cost at a refrigerant filling rate obtained based on operating data of the refrigeration cycle device and an increase amount of the second electricity cost relative to a first electricity cost when the refrigerant filling state of the refrigeration cycle device is fully filled, and an output unit that outputs at least one of the increase rate of the second electricity cost and the increase amount of the second electricity cost calculated by the calculation unit.

[0006] In addition, the program of the present disclosure causes the processor to function as an output unit that outputs at least one of the rate of increase in a second electricity cost at a refrigerant filling rate obtained based on operating data of the refrigeration cycle device relative to a first electricity cost when the refrigerant filling state of the refrigeration cycle device is fully filled, and the amount of increase in the second electricity cost. [Effects of the Invention]

[0007] The refrigeration cycle system and the program according to the present disclosure output at least one of the second electricity cost increase rate and the second electricity cost increase amount, thereby enabling a user of the refrigeration cycle device to realize the need for maintenance of the refrigeration cycle device, thereby increasing the likelihood that the refrigeration cycle device will undergo early maintenance. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 shows a configuration of an air conditioning system according to a first embodiment. [Figure 2] FIG. 1 shows the configuration of a server device and a terminal device according to a first embodiment. [Figure 3] 1 is a diagram showing the relationship between an increase in power consumption of an air conditioner according to Embodiment 1 and a decrease in the amount of refrigerant charged. [Figure 4] FIG. 10 is a diagram showing an example of an electricity bill screen in the first embodiment. [Figure 5] FIG. 10 is a diagram showing an example of a screen displayed by a terminal device according to the first embodiment; [Figure 6] 1 is a flowchart showing the operation of a server device and a terminal device according to the first embodiment. [Figure 7] Flowchart showing the operation of the terminal device in the first embodiment DETAILED DESCRIPTION OF THE INVENTION

[0009] (Findings that formed the basis of this disclosure) At the time the inventors came up with the idea for the present disclosure, there were technologies for diagnosing refrigerant leaks, such as that described in Patent Document 1. However, conventionally, while an inspector could quantitatively recognize the results of a refrigerant leak diagnosis, a user of a refrigeration cycle device could only learn of the results indirectly from the inspector, making it difficult for the user to quantitatively appreciate the effectiveness of the refrigerant leak diagnosis. Therefore, the inventors discovered a problem in that conventionally, it was not easy for users to realize the need for maintenance of the refrigeration cycle device, and the likelihood of the refrigeration cycle device being maintained promptly was low. To solve this problem, the inventors came up with the subject matter of the present disclosure. Therefore, the present disclosure provides a refrigeration cycle system and a program that can increase the likelihood that a refrigeration cycle device will undergo early maintenance.

[0010] Hereinafter, embodiments will be described in detail with reference to the drawings. However, in some cases, more detailed explanation than necessary may be omitted. For example, detailed explanation of already well-known matters or redundant explanation of substantially the same configuration may be omitted. The accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0011] (Embodiment 1) [1-1.Configuration] [1-1-1. Air conditioning system configuration] FIG. 1 is a diagram showing the configuration of an air conditioning system 1000 according to the first embodiment. The air conditioning system 1000 is a system that conditions a space to be conditioned by an air conditioner 1. Air conditioning of the space to be conditioned includes cooling, heating, dehumidification, ventilation, etc. The space to be conditioned is a space that belongs to a facility, and is a space that is conditioned by the air conditioner 1. Examples of facilities include homes, offices, stores, medical facilities, and public facilities. The air conditioning system 1000 is an example of a "refrigeration cycle system." The air conditioner 1 is an example of a "refrigeration cycle device."

[0012] The air conditioning system 1000 comprises an air conditioner 1 connected to a network NW. The network NW is a communication network made up of a public line network, a dedicated line, other communication circuits, etc. FIG. 1 illustrates a case in which the air conditioning system 1000 comprises three or more air conditioners 1. Thus, the air conditioning system 1000 of this embodiment comprises three or more air conditioners 1. Note that the number of air conditioners 1 provided in the air conditioning system 1000 is not limited to three or more, and may be less than three. The air conditioner 1 performs air conditioning operation using an indoor unit 2 and an outdoor unit 3 provided therein, and the indoor unit 2 air-conditions a conditioned room of the facility in which the indoor unit 2 is installed.

[0013] The air conditioner 1 of this embodiment comprises an indoor unit 2 and an outdoor unit 3. The indoor unit 2 and the outdoor unit 3 are connected by refrigerant piping and control wiring, thereby forming a refrigeration cycle in the air conditioner 1. Note that in FIG. 1, the air conditioner 1 is configured to comprise one indoor unit 2 and one outdoor unit 3, but the number of indoor units 2 and the number of outdoor units 3 comprised by the air conditioner 1 are not limited to one each; there may be one outdoor unit 3 and multiple indoor units 2, or there may be multiple outdoor units 3 and multiple indoor units 2.

[0014] The air conditioner 1 generates operating data D1 and transmits the generated operating data D1 to a server device 5 connected to the network NW. The server device 5 will be described later. The operating data D1 includes an air conditioner ID (Identification), information indicating the upload date and time, and detected values ​​of various sensors equipped in the air conditioner 1. Examples of sensors equipped in the air conditioner 1 include a sensor that detects the temperature of refrigerant discharged from the compressor, a sensor that detects the rotation speed of the compressor, a sensor that detects the temperature of refrigerant drawn into the compressor, a sensor that detects the temperature of the outdoor heat exchanger, and a sensor that detects the temperature of the indoor heat exchanger.

[0015] The air conditioner ID is identification information that uniquely identifies the air conditioner 1. The upload date and time is the date and time when the driving data D1 is uploaded.

[0016] The air conditioning device 1 is equipped with sensors for acquiring the discharge temperature, the compressor rotation speed, etc., generates operating data D1 that records the sensor values, and transmits the generated operating data D1 to the server device 5.

[0017] The air conditioning system 1000 includes a terminal device 4. The terminal device 4 is a terminal device used by a user P of the air conditioning device 1. Note that the user P may be the manager of the air conditioning device 1, the manager of the facility in which the air conditioning device 1 is installed, or the owner of the facility in which the air conditioning device 1 is installed, but is not an inspector who inspects the air conditioning device 1 for refrigerant leaks. The terminal device 4 shown in FIG. 1 is a laptop computer, but it may also be a tablet computer, desktop computer, or smartphone. The terminal device 4 connects to a network NW and communicates with a server device 5.

[0018] The air conditioning system 1000 includes a server device 5. The server device 5 is connected to a network NW and performs information processing with the air conditioning devices 1 and terminal devices 4 as clients. Note that in each figure, the server device 5 is represented by a single block, but this does not necessarily mean that the server device 5 is made up of a single device. For example, the server device 5 may be made up of multiple server devices with different processing contents.

[0019] [1-1-2. Server configuration] Next, the configuration of the server device 5 will be described. FIG. 2 is a diagram showing the configuration of the server device 5 and the terminal device 4. As shown in FIG. The server device 5 includes a server control device 50 and a server communication device 51.

[0020] Before describing the server control device 50, the server communication device 51 will be described. The server communication device 51 comprises hardware such as a communication circuit that complies with a predetermined communication standard, and communicates with the air conditioning device 1 and the terminal device 4 under the control of the server control device 50.

[0021] The server control device 50 includes a server processor 500 such as a CPU (Central Processing Unit) or an MPU (Micro Processor Unit), a server memory 510, and an interface circuit for connecting other devices and sensors.

[0022] The server memory 510 is a storage device that stores programs and data. The server memory 510 stores a control program 511, a first management DB (database) 512, a second management DB 513, and data to be processed by the server processor 500. The server memory 510 has a non-volatile storage area. The server memory 510 also has a volatile storage area and constitutes a work area of ​​the server processor 500. The server memory 510 is constituted by, for example, a ROM (Read Only Memory) or a RAM (Random Access Memory). The control program 511 is a program that causes the server processor 500 to function as a functional unit, which will be described later.

[0023] The first management DB 512 is a database that manages operating data D1. The first management DB 512 has one record R1 for each air conditioning apparatus 1. The record R1 has an air conditioning apparatus ID. The record R1 also has an operating data field. The operating data field holds multiple pieces of operating data D1, including the operating data D1 most recently transmitted by the air conditioning apparatus 1. The operating data field also holds operating data D1 for a predetermined period (e.g., one week). In the operating data field, the multiple pieces of operating data D1 are arranged in chronological order, with the upload dates and times indicated by the operating data D1.

[0024] The second management DB 513 is a database that manages communication information for communicating with terminal devices 4. The communication information is, for example, address information. The second management DB 513 has one record R2 for each air conditioning apparatus 1. Record R2 has an air conditioning apparatus ID and communication information for the terminal device 4 used by user P of the air conditioning apparatus 1 indicated by this air conditioning apparatus ID. The air conditioning apparatus ID and communication information are appropriately associated with each other.

[0025] The server processor 500 reads and executes a control program 511 stored in a server memory 510, thereby functioning as a server communication unit 501, an update unit 502, an acquisition unit 503, a calculation unit 504, and a screen generation unit 505.

[0026] [1-1-2-1. Server Communication Section] The server communication unit 501 communicates with the air conditioning apparatus 1 and the terminal device 4 via the server communication device 51.

[0027] [1-1-2-2. Update section] The update unit 502 updates the contents of record R held in the management DB 512. When the server communication unit 501 receives operating data D1 from the air conditioning apparatus 1, the update unit 502 identifies record R of the air conditioning apparatus ID included in the operating data D1 from the management DB 512. Next, the update unit 502 stores the operating data D1 received by the server communication unit 501 in the operating data field of the identified record R1. When storing the operating data D1, the update unit 502 ensures that the operating data D1 is arranged in the operating data field in the order described above.

[0028] [1-1-2-3. Acquisition section] The acquisition unit 503 acquires the refrigerant filling rate of the air conditioner 1 based on the operating data D1. The acquisition unit 503 processes one record R, reads out the operating data D1 indicating the most recent upload date and time from the record R to be processed, and acquires the refrigerant filling rate of the air conditioner 1 based on the read operating data D1. The refrigerant filling rate is the degree of filling when a fully filled refrigerant state is taken as 100%.

[0029] The acquisition unit 503 acquires the refrigerant filling rate as follows. For example, the acquisition unit 503 acquires the refrigerant filling rate by inputting the detection values ​​of various sensors included in the read operating data D1 into a predetermined model and outputting the refrigerant filling rate from the predetermined model. An example of this predetermined model is a trained model that has undergone machine learning to learn the refrigerant filling rate from the detection values ​​of various sensors included in the operating data D1. Note that this predetermined model is stored in a storage area (e.g., server memory 510) that can be read by the server processor 500. Furthermore, for example, the acquisition unit 503 acquires the refrigerant filling rate using an algorithm that calculates the refrigerant filling rate using, as parameters, detection values ​​of various sensors equipped in the air conditioning apparatus 1. In this case, the acquisition unit 503 inputs the detection values ​​of the various sensors included in the read operating data D1 into the algorithm, performs calculations, and acquires the refrigerant filling rate.

[0030] [1-1-2-4. Calculation section] The calculation unit 504 calculates a first electricity fee. The first electricity fee is the electricity fee incurred by the air conditioner 1 when the refrigerant filling state of the air conditioner 1 is full. The calculation unit 504 calculates the first electricity fee based on the following formula (1).

[0031] Electricity cost = Power consumption × Usage time × Electricity cost (1) The "power consumption" on the right side is the power consumption per unit time in the air conditioner 1. A predetermined time is substituted for the "usage time" on the right side. For example, 1 hour is substituted for the usage time on the right side. The "electricity unit price" on the right-hand side is the electricity unit price for power consumption per unit. The unit price substituted for the "electricity unit price" on the right-hand side is determined in advance. Note that the unit price substituted for the "electricity unit price" on the right-hand side may differ depending on the area where the air conditioning device 1 is installed, the electric company with which user P has a contract, etc.

[0032] The calculation unit 504 calculates the first electricity fee as follows. The calculation unit 504 substitutes the power consumption per unit time in the air conditioner 1 when the refrigerant filling state is full into "power consumption" in formula (1). The power consumption per unit time in the air conditioner 1 when the refrigerant filling rate is full is determined in advance. Next, the calculation unit 504 substitutes the predetermined time into the "usage time" in equation (1). Next, the calculation unit 504 substitutes the predetermined unit price into the "electricity unit price" in formula (1). Then, the calculation unit 504 calculates the first electricity charge using equation (1) into which these three parameters are substituted.

[0033] The calculation unit 504 calculates a second electricity fee. The second electricity fee is the electricity fee incurred by the air conditioning device 1 when the refrigerant charging state is the refrigerant charging rate acquired by the acquisition unit 503. The calculation unit 504 calculates the second electricity fee based on the above formula (1).

[0034] The calculation unit 504 calculates the second electricity fee as follows. First, prior to calculating the second electricity fee, the calculation unit 504 calculates the rate of increase in the power consumption of the air conditioner 1 at the refrigerant filling rate acquired by the acquisition unit 503, relative to the power consumption of the air conditioner 1 when the refrigerant filling state is fully filled. The calculation unit 504 calculates this rate of increase based on the relationship shown in FIG.

[0035] FIG. 3 is a chart showing the relationship between an increase in power consumption of the air conditioner 1 and a decrease in the amount of refrigerant charged. In Fig. 3, the vertical axis indicates the rate of increase in power consumption of the air conditioner 1 when the refrigerant is fully charged. The vertical axis is expressed in percentage. Also in Fig. 3, the horizontal axis indicates the rate of decrease in the amount of refrigerant charged when the refrigerant is fully charged. The horizontal axis is also expressed in percentage.

[0036] 3 shows a graph GF1 that indicates the relationship between an increase in power consumption and a decrease in the amount of refrigerant charged in the air conditioner 1. The graph GF1 indicates that the power consumption in the air conditioner 1 increases as the amount of refrigerant charged decreases from full charge.

[0037] As described above, the calculation unit 504 calculates the rate of increase in power consumption of the air conditioner 1 at the refrigerant fill rate acquired by the acquisition unit 503, relative to the power consumption of the air conditioner 1 when the refrigerant fill state is fully charged, based on the relationship shown in FIG. 3. The calculation unit 504 calculates the rate of decrease in the refrigerant charge amount by calculating "(100%) - (the refrigerant fill rate acquired by the acquisition unit 503)" assuming that the refrigerant fill rate when fully charged is 100%. Next, the calculation unit 504 calculates the rate of increase in power consumption corresponding to the calculated rate of decrease in the refrigerant charge amount. The calculation of the rate of increase in power consumption may use a predetermined algorithm that defines the relationship shown in FIG. 3, or may refer to a table that defines the relationship shown in FIG. 3. For example, if the calculated rate of decrease in the refrigerant charge amount is "25%, " the calculation unit 504 calculates that the rate of increase in power consumption is "26.0%".

[0038] After calculating the rate of increase in power consumption, the calculation unit 504 multiplies the power consumption per unit time in the air conditioner 1 when the refrigerant charge state is full by the calculated rate of increase in power consumption and substitutes the result into "power consumption" in formula (1). For example, if the calculated rate of increase in power consumption is "25%" and the power consumption per unit time in the air conditioner 1 when the refrigerant charge state is full is "β W (watts)", the calculation unit 504 substitutes the value "(1.25 × β) W (watts)" into "power consumption" in formula (1). Next, the calculation unit 504 substitutes the predetermined time into the "usage time" in formula (1). In calculating the second electricity fee, the same time as that input when calculating the first electricity fee is substituted into the "usage time" in formula (1). Next, the calculation unit 504 substitutes the predetermined unit price into the "electricity unit price" in formula (1). In calculating the second electricity price, the same unit price as the unit price input when calculating the first electricity price is substituted into the "electricity unit price" in formula (1). Then, the calculation unit 504 calculates the second electricity fee using equation (1) into which these three parameters are substituted.

[0039] The calculation unit 504 calculates the rate of increase of the second electricity charge relative to the first electricity charge. The calculation unit 504 calculates the rate of increase of the second electricity charge as a percentage by calculating "second electricity charge ÷ first electricity charge × 100". Note that the calculation unit 504 may calculate the calculated rate of increase of power consumption as the rate of increase of the second electricity charge.

[0040] The calculation unit 504 calculates a third electricity fee. The third electricity fee is the electricity fee incurred by the air conditioning apparatus 1 when the refrigerant fill rate is 70%. In this embodiment, if the refrigerant fill rate is less than 70%, a refrigerant leak has occurred and maintenance is required for the air conditioning apparatus 1. In other words, the third electricity fee is the electricity fee incurred by the air conditioning apparatus 1 when the refrigerant fill rate is at the lower limit at which maintenance is not required. The calculation unit 504 calculates the third electricity fee based on (1) above using the same calculation method as for the second electricity fee. 70% is an example of a "second threshold."

[0041] More specifically, the calculation unit 504 calculates the rate of increase in power consumption of the air conditioner 1 when the refrigerant fill rate is 70% compared to the rate of increase in power consumption of the air conditioner 1 when the refrigerant fill state is fully filled. The calculation unit 504 calculates the rate of decrease in the refrigerant fill amount by calculating "(100%) - (70%)", assuming that the refrigerant fill rate when fully filled is 100%. Next, the calculation unit 504 calculates the rate of increase in power consumption corresponding to "30%", which is the calculated rate of decrease in the refrigerant fill amount, in the same way as the second electricity fee. Next, the calculation unit 504 multiplies the power consumption per unit time in the air conditioner 1 when the refrigerant fill rate is full by the calculated rate of increase in power consumption, and substitutes the result into "power consumption" in formula (1). For example, if the calculated rate of increase in power consumption is "40%" and the power consumption per unit time in the air conditioner 1 when the refrigerant fill rate is full is "β W (watts)", the calculation unit 504 substitutes the value "(1.40 × β) W (watts)" into "power consumption" in formula (1). Next, the calculation unit 504 substitutes the predetermined time into the "usage time" in formula (1). In calculating the third electricity fee, the same time as that input when calculating the first electricity fee is substituted into the "usage time" in formula (1). Next, the calculation unit 504 substitutes the predetermined unit price into the "electricity unit price" in formula (1). In calculating the third electricity price, the same unit price as the unit price input when calculating the first electricity price is substituted into the "electricity unit price" in formula (1). Then, the calculation unit 504 calculates the third electricity fee using equation (1) into which these three parameters are substituted.

[0042] The calculation unit 504 calculates the rate of increase of the third electricity charge relative to the first electricity charge. The calculation unit 504 calculates the rate of increase of the third electricity charge as a percentage by calculating "third electricity charge ÷ first electricity charge × 100". Note that the calculation unit 504 may calculate the calculated rate of increase of power consumption as the rate of increase of the third electricity charge.

[0043] [1-1-2-5.Screen generation section] The screen generation unit 505 generates an electricity bill screen PG to be displayed on the terminal device 4. The screen generation unit 505 generates the electricity bill screen PG when the refrigerant filling rate acquired by the acquisition unit 503 is less than 80% and equal to or greater than 70%. 80% is an example of a "first threshold."

[0044] FIG. 4 is a diagram showing an example of the electricity bill screen PG. The electricity bill screen PG displays a first bar graph BG1 and a second bar graph BG2 for each of the cases where the refrigerant filling state is full, where the refrigerant filling state is the refrigerant filling rate acquired by the acquisition unit 503, and where the refrigerant filling state is 70%.

[0045] The first bar graph BG1 is a bar graph showing the electricity cost according to the refrigerant charge rate. The second bar graph BG2 is a bar graph showing the first electricity bill.

[0046] The electricity bill screen PG displays a first bar graph BG11 and a second bar graph BG2 when the refrigerant charge state is fully charged. The first bar graph BG11 is the first bar graph BG1 that shows the electricity bill when the refrigerant charge rate is 100%, i.e., the first electricity bill.

[0047] On the electricity bill screen PG, a first bar graph BG12 and a second bar graph BG2 are displayed when the refrigerant charging state is the refrigerant charging rate acquired by the acquisition unit 503. The first bar graph BG12 is the first bar graph BG1 that indicates the second electricity bill. On the electricity bill screen PG shown in Fig. 4, the first bar graph BG12 indicates the second electricity bill when the refrigerant charging rate is 75%.

[0048] On the electricity bill screen PG, a first bar graph BG13 and a second bar graph BG2 are displayed when the refrigerant charge state is 70%. The first bar graph BG13 is the first bar graph BG1 showing the third electricity bill.

[0049] On the electricity bill screen PG, first increase rate information J1 is displayed in association with the first bar graph BG12 and the second bar graph BG2 when the refrigerant charge state is the refrigerant charge rate acquired by the acquisition unit 503. The first increase rate information J1 is information indicating the rate of increase of the second electricity bill relative to the first electricity bill. The first increase rate information J1 in Fig. 4 indicates the rate of increase of the second electricity bill relative to the first electricity bill by a character string J11 that reads "25% increase" and a frame J12 that indicates the difference between the first bar graph BG1 and the second bar graph BG2.

[0050] Furthermore, on the electricity bill screen PG, the first increase rate information J1 is displayed in an emphasized manner. In this embodiment, the first increase rate information J1 is displayed in an emphasized manner by displaying a frame WK. The frame WK is a frame that surrounds the first increase rate information J1 and the first bar graph BG12 and the second bar graph BG2 when the refrigerant charge state is the refrigerant charge rate acquired by the acquisition unit 503. The frame WK may be displayed in the brightest color on the second screen G2.

[0051] Furthermore, on the electricity bill screen PG, repair cost information J3 is displayed in association with the frame WK. The repair cost information J3 is information indicating the cost required to repair the air conditioner 1.

[0052] On the electricity bill screen PG, second increase rate information J2 is displayed in association with the first bar graph BG13 and the second bar graph BG2 when the refrigerant charge state is 70%. The second increase rate information J2 is information indicating the rate of increase of the third electricity bill relative to the first electricity bill. The second increase rate information J2 in Fig. 4 indicates the rate of increase of the third electricity bill relative to the first electricity bill using the character string J21 "40% increase" and a box J22 indicating the difference between the first bar graph BG13 and the second bar graph BG2.

[0053] The screen generation unit 505 generates the electricity bill screen PG as follows. The screen generating unit 505 generates a first bar graph BG11 having a size corresponding to the first electricity charge calculated by the calculating unit 504. Furthermore, the screen generating unit 505 generates a first bar graph BG12 having a size corresponding to the second electricity charge calculated by the calculating unit 504. Furthermore, the screen generating unit 505 generates a first bar graph BG13 having a size corresponding to the third electricity charge calculated by the calculating unit 504. Furthermore, the screen generating unit 505 generates three second bar graphs BG2 each having a size corresponding to the first electricity charge calculated by the calculating unit 504. Furthermore, the screen generating unit 505 generates first increase rate information J1 indicating the increase rate of the second electricity charge calculated by the calculating unit 504. Furthermore, the screen generating unit 505 generates second increase rate information J2 indicating the increase rate of the third electricity charge calculated by the calculating unit 504. Furthermore, the screen generation unit 505 generates repair cost information J3 indicating a repair cost according to the refrigerant fill rate acquired by the acquisition unit 503. When generating the repair cost information J3, the screen generation unit 505 may refer to a predetermined table that defines the relationship between the refrigerant fill rate and the repair cost, or may acquire the repair cost using a predetermined algorithm that defines the relationship between the refrigerant fill rate and the repair cost. Then, the screen generation unit 505 generates the second screen G2 by arranging the generated bar graphs and information as shown in FIG.

[0054] [1-1-3. Terminal device configuration] The configuration of the terminal device 4 will be described with reference to FIG. The terminal device 4 includes a terminal control device 40 , a terminal communication device 41 , a display 42 , and an input interface 43 .

[0055] Before describing the terminal control device 40, the terminal communication device 41, the display 42, and the input interface 43 will be described.

[0056] The terminal communication device 41 includes hardware such as a communication circuit conforming to a predetermined communication standard, and communicates with the server device 5. The display 42 is configured by an LED (Light Emitting Diode), an OLED (Organic LED), etc. The display 42 may be an external device connected to the terminal device 4. The input interface 43 is connected to devices such as an operation switch, a touch input panel, a mouse, and a keyboard, detects an input operation by the user P, and outputs the detection result to the terminal control device 40.

[0057] The terminal control device 40 includes a terminal processor 400 such as a CPU or MPU, a terminal memory 410, and an interface circuit for connecting other devices and sensors. Terminal processor 400 is an example of a "processor."

[0058] The terminal memory 410 is a storage device that stores programs and data. The terminal memory 410 stores a control program 411 and data to be processed by the terminal processor 400. The terminal memory 410 has a non-volatile storage area. The terminal memory 410 also has a volatile storage area and constitutes a work area for the terminal processor 400. The terminal memory 410 is constituted by, for example, a ROM or a RAM. The control program 411 is an example of a "program."

[0059] The terminal processor 400 reads and executes a control program 411 stored in the terminal memory 410, thereby functioning as a terminal communication unit 401, a display unit 402, and a reception unit 403. Display unit 403 is an example of an "output unit."

[0060] The terminal communication unit 401 communicates with the server device 5 via the terminal communication device 41 . The display unit 402 displays information on the display 42. In this embodiment, the display unit 402 displays an air conditioning related screen AG or an electricity bill screen PG on the display 42. The reception unit 403 receives various inputs from the user P via the input interface 43 .

[0061] FIG. 5 is a diagram showing an example of a screen displayed by the terminal device 4. As shown in FIG.

[0062] The display unit 402 displays an air conditioning related screen AG on the display 42. The air conditioning related screen AG is a screen related to the air conditioner 1, and information related to the air conditioner 1 is displayed.

[0063] The air conditioning-related screen AG has a notification icon IC. The notification icon IC is in a first state when the refrigerant charge rate is 80% or higher. The notification icon IC in the first state notifies the user that the refrigerant charge rate is normal by displaying a string such as "Normal" within the block. The notification icon IC is in a second state when the refrigerant charge rate is less than 80% but greater than or equal to 70%. The notification icon IC in the second state is an operable icon, and prompts the user to operate the notification icon IC by displaying a character or string such as "Please check here," an exclamation mark, or "Refrigerant charge level is decreasing!" within the block. The notification icon IC is in a third state when the refrigerant charge rate is 70% or lower. The notification icon IC in the third state notifies the user that a refrigerant leak has occurred by displaying a character or string such as "Refrigerant leak" within the block.

[0064] When the notification icon IC2 of the second state is operated, the display unit 402 displays the electricity bill screen PG on the display 42, as shown in FIG.

[0065] [1-2. Operation] Next, the operation of each part of the air conditioning system 1000 in this embodiment will be described. 6 is a flowchart showing the operations of the server device 5 and the terminal device 4. In FIG. 6, a flowchart FA shows the operations of the server device 5, and a flowchart FB shows the operations of the terminal device 4.

[0066] The operation of the server device 5 shown in the flowchart FA is performed for each record R. The operation of the terminal device 4 shown in the flowchart FB is an operation related to the air conditioning related screen AG.

[0067] As shown in the flowchart FA, the acquisition unit 503 determines whether a trigger for starting acquisition of the refrigerant filling rate has occurred (step SA1). Examples of triggers for starting acquisition of the refrigerant filling rate include the fact that new operating data D1 has been stored in the record R to be processed, or the fact that a predetermined period has passed since the previous processing of the record R to be processed.

[0068] When it is determined that a trigger for starting acquisition of the refrigerant filling rate has not occurred (step SA1: NO), the acquisition unit 503 performs the process of step SA1 again.

[0069] On the other hand, if the acquiring unit 503 determines that a trigger for starting acquisition of the refrigerant filling rate has occurred (step SA1: YES), it acquires the refrigerant filling rate based on the record R to be processed (step SA2).

[0070] Next, the acquisition unit 503 determines whether the refrigerant filling rate acquired in step SA2 is 80% or more, less than 80%, 70% or more, or less than 70% (step SA3).

[0071] If the acquisition unit 503 determines that the refrigerant filling rate is 80% or more (step SA3: 80 or more), the server communication unit 501 transmits the first information to the terminal device 4 (step SA4). The first information is information indicating that the refrigerant filling rate is 80% or more.

[0072] Returning to the explanation of step SA3, if the acquisition unit 503 determines that the refrigerant filling rate is less than 80% and greater than or equal to 70% (step SA3: less than 80% and greater than or equal to 70%), the calculation unit 504 calculates the first electricity charge, the second electricity charge, the increase rate of the second electricity charge, the third electricity charge, and the increase rate of the third electricity charge (step SA5).

[0073] Next, the screen generation unit 505 generates an electricity bill screen PG based on the calculation result of step SA5 (step SA6).

[0074] Next, the server communication unit 501 transmits the second information to the terminal device 4 (step SA7). The second information is information indicating that the refrigerant filling rate is less than 80% and equal to or greater than 70%, and includes the screen data of the electricity bill screen PG generated in step SA6.

[0075] Returning to the explanation of step SA3, if the acquisition unit 503 acquires that the refrigerant filling rate is less than 70% (step SA3: less than 70%), the server communication unit 501 transmits the third information to the terminal device 4 (step SA8). The third information is information indicating that the refrigerant filling rate is less than 70%.

[0076] As shown in the flowchart FB, the terminal communication unit 401 receives any one of the first information, the second information, and the third information (step SB1).

[0077] Next, display unit 402 displays notification icon IC in a state corresponding to the type of information received in step SB1 (step SB2). In step SB2, if the first information is received in step SB1, the display unit 402 displays the notification icon IC in the first state. In step SB2, if the second information is received in step SB1, the display unit 402 displays the notification icon IC in the first state. In step SB2, if the third information is received in step SB1, the display unit 402 displays the notification icon IC in the first state.

[0078] Next, the operation of the terminal device 4 when the notification icon IC in the second state is displayed will be described. FIG. 7 is a flowchart FC showing the operation of the terminal device 4.

[0079] The display unit 402 determines whether the accepting unit 403 has accepted an operation on the notification icon IC (step SC1).

[0080] When the display unit 402 determines that the operation on the notification icon IC has not been accepted by the accepting unit 403 (step SC1: NO), the display unit 402 performs the process of step SC1 again.

[0081] On the other hand, if the display unit 402 determines that the accepting unit 403 has accepted the operation of the notification icon IC (step SC1: YES), the display unit 402 displays the electricity bill screen PG on the display 42 (step SC2). The electricity bill screen PG displayed in step SC2 is the electricity bill screen PG indicated by the screen data included in the second information received from the server device 5.

[0082] The display unit 402 determines whether the reception unit 403 has received an operation to end the display of the electricity bill screen PG (step SC3).

[0083] If the display unit 402 determines that the accepting unit 403 has not accepted an operation to end the display of the electricity bill screen PG (step SC3: NO), the display unit 402 performs the process of step SC3 again.

[0084] On the other hand, if the display unit 402 determines that the receiving unit 403 has received an operation to end the display of the electricity bill screen PG (step SC3: YES), the display unit 402 displays the air conditioning-related screen AG, which displays the second state notification icon IC, on the display 42 (step SC4).

[0085] [1-3. Effects, etc.] As described above, the air conditioning system 1000 includes a calculation unit 504 that calculates the rate of increase in the second electricity bill at the refrigerant filling rate obtained based on the operating data D1 of the air conditioning device 1 relative to the first electricity bill when the refrigerant filling state of the air conditioning device 1 is fully filled, and a display unit 402 that displays the rate of increase in the second electricity bill calculated by the calculation unit 504.

[0086] According to this, by displaying the rate of increase in the second electricity charge, the user P of the air conditioner 1 can realize the need for maintenance of the air conditioner 1. This can increase the likelihood that the air conditioner 1 will undergo maintenance early.

[0087] The display unit 402 displays the first electricity charge and the second electricity charge.

[0088] This allows user P to compare the electricity bill for the air conditioner 1 when the refrigerant is fully charged with the electricity bill for the air conditioner 1 at the current refrigerant charge rate. Therefore, the user P can understand the benefits of being fully charged using a familiar parameter such as the electricity bill, and can more clearly feel the need for maintenance of the air conditioner 1. This can further increase the likelihood that the air conditioner 1 will undergo early maintenance.

[0089] Display unit 402 displays the rate of increase in the second electricity charge when the refrigerant filling rate is less than 80%.

[0090] This makes it possible to not display the increase rate of the second electricity bill when there is no need to make the user P aware of the need for maintenance of the air conditioning apparatus 1, thereby preventing the increase rate of the second electricity bill from being displayed unnecessarily. This makes it possible to prevent the user P from feeling annoyed by the display of the electricity bill.

[0091] When the refrigerant filling rate is less than 70%, the display unit 402 displays that a refrigerant leak has occurred in the air conditioning device 1. When the refrigerant filling rate is less than 80% and equal to or greater than 70%, the display unit 402 displays the rate of increase in the second electricity charge.

[0092] According to this, when there is no need to make the user P aware of the need for maintenance of the air conditioner 1, the rate of increase in the second electricity charge is displayed, and when maintenance of the air conditioner 1 is necessary, a message is displayed to indicate that a refrigerant leak has occurred. This makes the user P more aware of the need for maintenance of the air conditioner 1, and when maintenance of the air conditioner 1 is necessary, they can understand that maintenance is necessary. This makes it possible to further increase the likelihood that the air conditioner 1 will undergo maintenance at an early stage.

[0093] When the refrigerant filling rate is 80% or higher, display unit 402 displays that the refrigerant filling state of air conditioner 1 is normal.

[0094] This allows the user P to easily understand that maintenance of the air conditioner 1 is not necessary.

[0095] The display unit 402 highlights the rate of increase in the second electricity bill.

[0096] This makes it possible to draw the user P's attention to the rate of increase in the second electricity bill, and increases the likelihood that the user P of the air conditioner 1 will quickly realize the need for maintenance of the air conditioner 1. This makes it possible to further increase the likelihood that the air conditioner 1 will undergo maintenance at an early stage.

[0097] The display unit 402 displays the repair cost of the air conditioner 1 together with the rate of increase in the second electricity charge.

[0098] This makes it possible to support early decisions on whether or not to perform maintenance on the air conditioning apparatus 1 by also displaying factors that could be used as deciding factors on whether or not to perform maintenance on the air conditioning apparatus 1. This makes it possible to further increase the likelihood that the air conditioning apparatus 1 will undergo maintenance early.

[0099] The control program 411 causes the terminal processor 400 to function as a display unit 402 that displays the rate of increase of the second electricity charge relative to the first electricity charge.

[0100] This provides the same effects as those of the air conditioning system 1000 described above.

[0101] (Embodiment 2) Next, a second embodiment will be described. [2-1.Configuration] Regarding the configuration of each part of the air conditioning system 1000 in the second embodiment, detailed description of the configuration similar to the configuration of each part of the air conditioning system 1000 in the first embodiment will be omitted as appropriate.

[0102] [2-2. Operation] In the second embodiment, the operations of the server communication unit 501, the acquisition unit 503, the calculation unit 504, and the screen generation unit 505 are different from those in the first embodiment.

[0103] In addition to the operations of the acquisition unit 503 of the first embodiment, the acquisition unit 503 of the second embodiment further determines whether the refrigerant filling rate is on a decreasing trend. The acquisition unit 503 of this embodiment acquires the refrigerant filling rate from each piece of operating data D1 of the record R to be processed. Next, the acquisition unit 503 identifies a minimum value and a maximum value from each of the acquired refrigerant filling rates, and determines whether the difference between the identified minimum value and maximum value is equal to or greater than a predetermined value. If the acquisition unit 503 determines that the difference is equal to or greater than the predetermined value, it determines that the refrigerant filling rate is on a decreasing trend, and if the difference is less than the predetermined value, it determines that the refrigerant filling rate is on a decreasing trend.

[0104] The calculation unit 504 of the second embodiment performs the same calculation as in the first embodiment even when the acquisition unit 503 determines that the refrigerant filling rate is on a decreasing trend.

[0105] The screen generating unit 505 of the second embodiment also generates the electricity bill screen PG when the acquiring unit 503 determines that the refrigerant filling rate is on a decreasing trend.

[0106] When the acquisition unit 503 determines that the refrigerant fill rate is on a decreasing trend, the server communication unit 501 in the second embodiment transmits fourth information to the terminal device 4. The fourth information is information indicating that the refrigerant fill rate is on a decreasing trend, and includes screen data of the electricity bill screen PG that is generated when it is determined that the refrigerant fill rate is on a decreasing trend.

[0107] In the second embodiment, the operation of the display unit 402 is further different from that of the first embodiment. In addition to the operation of the first embodiment, the display unit 402 of the present embodiment displays the notification icon IC in a fourth state when fourth information is received from the server device 5. The notification icon IC in the fourth state notifies that the refrigerant fill rate is on a downward trend by displaying a string such as "Refrigerant fill rate is on a downward trend!" within a block. The notification icon IC in the fourth state is also operable, and when the notification icon IC in the fourth state is operated, the display unit 402 displays the electricity bill screen PG on the display 42. This electricity bill screen PG is the electricity bill screen PG indicated by the screen data included in the fourth information.

[0108] [2-3. Effects, etc.] When the refrigerant filling rate is on a decreasing trend, the display unit 402 displays the rate of increase in the second electricity charge.

[0109] This allows the user P of the air conditioner 1 to realize the need for maintenance of the air conditioner 1 when the refrigerant fill rate is on a downward trend. Therefore, when the refrigerant fill rate is on a downward trend, it is possible to increase the likelihood that the air conditioner 1 will undergo maintenance early.

[0110] (Other embodiments) As described above, the above-mentioned first and second embodiments have been described as examples disclosed in the present application. However, the technology in the present disclosure is not limited to these, and can be applied to embodiments in which modifications, substitutions, additions, omissions, etc. are made. Furthermore, it is also possible to combine the components described in the above-mentioned first and second embodiments to create new embodiments. Therefore, other embodiments will be described below as examples.

[0111] In the above-described first and second embodiments, 80% is used as an example of the "first threshold value," but the "first threshold value" is not limited to 80% and may be a value greater than or less than 80%. However, the "first threshold value" must be a value greater than the "second threshold value."

[0112] In the above-described first and second embodiments, 70% is used as an example of the "second threshold value," but the "second threshold value" is not limited to 70% and may be a value greater than or less than 70%. However, the "second threshold value" must be a value smaller than the "first threshold value." Furthermore, the "second threshold value" may be a threshold value determined by a predetermined rule as a value at which it is determined that a refrigerant leak has occurred and maintenance is required.

[0113] In the above-described first and second embodiments, the rate of increase of the second electricity fee relative to the first electricity fee is displayed. In other embodiments, the amount of increase of the second electricity fee relative to the first electricity fee may be displayed together with or instead of the rate of increase of the second electricity fee relative to the first electricity fee. That is, in other embodiments, the amount of increase of the second electricity fee relative to the first electricity fee may be displayed, for example, as "an increase of XXX yen." In these other embodiments, the calculation unit 504 calculates the amount of increase of the second electricity fee relative to the first electricity fee together with or instead of the rate of increase of the second electricity fee relative to the first electricity fee. Furthermore, in these other embodiments, the amount of increase of the second electricity fee is also highlighted and displayed on the electricity fee screen PG.

[0114] In other embodiments, the repair costs for the air conditioner 1 may not be displayed.

[0115] In the above-described embodiment, the first electricity charge, the second electricity charge, the third electricity charge, the rate of increase in the second electricity charge, and the rate of increase in the third electricity charge are calculated based on the refrigerant filling rate. In other embodiments, the first electricity charge, the second electricity charge, the third electricity charge, the rate of increase in the second electricity charge, and the rate of increase in the third electricity charge may be calculated based on other factors such as a refrigerant leakage rate, which is the probability of a refrigerant leak, or an index value for the refrigerant amount (for example, the degree of superheat), instead of the refrigerant filling rate.

[0116] In another embodiment, when the notification icon IC is operated after maintenance has been performed on the air conditioner 1 and the refrigerant filling state of the air conditioner 1 has reached full, the terminal device 4 may display the refrigerant filling rate before maintenance and also display a message that electricity bills can be expected to be reduced by filling. When making this display, the terminal device 4 may also display a specific numerical value indicating how much of an electricity bill reduction effect can be expected.

[0117] In another embodiment, after maintenance of the air conditioning device 1 is performed and the refrigerant filling state of the air conditioning device 1 becomes full, the electricity bill screen PG for the next month may display that energy saving effects have been achieved by filling the refrigerant if there is a difference of a predetermined value or more between the second electricity bill of the previous month and the second electricity bill of the current month.

[0118] In other embodiments, a configuration other than the amount of increase in the electricity bill or the rate of increase in the electricity bill may be displayed to enable the user P to realize the need for maintenance. For example, in other embodiments, a configuration may be used in which the amount of CO2 reduction or the rate of CO2 reduction is displayed to enable the user P to realize the need for maintenance.

[0119] In other embodiments, the highlighting of at least one of the rate of increase in the second electricity charge and the amount of increase in the second electricity charge may be in a form other than the frame WK. For example, the highlighting may be in the form of highlighting text indicating at least one of the rate of increase in the second electricity charge and the amount of increase in the second electricity charge, or decoration of the text.

[0120] In another embodiment, the electricity bill screen PG may be displayed without operating the notification icon IC.

[0121] In the above-described first and second embodiments, the display unit 402 is exemplified as the "output unit," and display is exemplified as the output form of the "output unit." In other embodiments, the output form of the "output unit" may be other forms such as audio output or print output.

[0122] In the above-described first and second embodiments, the air conditioner 1 is exemplified as the "refrigeration cycle device." However, the "refrigeration cycle device" is not limited to the air conditioner 1, and may be any device that employs a refrigeration cycle, such as a refrigerator or a showcase.

[0123] In another embodiment, the terminal processor 400 may read and execute the control program 411 to further function as at least one of the acquisition unit 503 and the calculation unit 504 .

[0124] In another embodiment, the display unit 402 may generate the electricity bill screen PG. In this case, the terminal device 4 receives information necessary for generating the electricity bill screen PG (information indicating various electricity bills and information indicating various increase rates) from the server device 5.

[0125] In another embodiment, the terminal device 4 may display the electricity bill reduction effect, which is the difference between the first electricity bill and the second electricity bill, and the repair cost. In this display, the electricity bill reduction effect may be displayed every time a predetermined period (for example, one month or one year) has passed. Note that in this display, the electricity bill reduction effect may be displayed using a graph showing the first electricity bill and a graph showing the second electricity bill, allowing the user P to intuitively feel the electricity bill reduction effect. According to this other embodiment, the user P can grasp how long it will take for the air conditioning apparatus 1 not to be repaired before the user P ends up paying an electricity bill that exceeds the repair cost, which can further increase the likelihood that the air conditioning apparatus 1 will undergo early maintenance.

[0126] The terminal processor 400 and the server processor 500 may be configured with a single processor or multiple processors. These processors may be hardware programmed to realize the corresponding functional units. That is, these processors may be configured with, for example, an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

[0127] The configurations of the terminal device 4 and the server device 5 shown in Figure 2 are merely examples, and the specific implementation form is not particularly limited. In other words, it is not necessarily necessary to implement hardware corresponding to each unit individually, and it is also possible to implement a configuration in which a single processor executes a program to realize the functions of each unit. Furthermore, some of the functions realized by software in the above-mentioned embodiments may be implemented by hardware, or some of the functions realized by hardware may be implemented by software.

[0128] The step units of the operations shown in Figures 6 and 7 are divided according to the main processing content to make the operations easier to understand, and the operation is not limited by the way the processing units are divided or the names of the processing units. The operations may be divided into more step units depending on the processing content. Furthermore, one step unit may be divided so that it includes more processing. Furthermore, the order of the steps may be changed as appropriate within the scope that does not interfere with the purpose of this disclosure.

[0129] It should be noted that the above-described embodiments are intended to illustrate the technology of the present disclosure, and various modifications, substitutions, additions, omissions, etc. may be made within the scope of the claims or their equivalents.

[0130] (Addendum) The above description of the embodiments discloses the following techniques.

[0131] (Technology 1) A refrigeration cycle system comprising: a calculation unit that calculates at least one of an increase rate of a second electricity cost at a refrigerant filling rate obtained based on operating data of a refrigeration cycle device and an increase amount of the second electricity cost relative to a first electricity cost when the refrigerant filling state of the refrigeration cycle device is fully filled; and an output unit that outputs at least one of the increase rate of the second electricity cost and the increase amount of the second electricity cost calculated by the calculation unit. According to this, by displaying at least one of the rate of increase in the second electricity charge and the amount of increase in the second electricity charge, the user of the refrigeration cycle device can realize the necessity of maintenance of the refrigeration cycle device, thereby increasing the possibility that the refrigeration cycle device will undergo maintenance early.

[0132] (Technical Aspect 2) The refrigeration cycle system according to Technical Aspect 1, wherein the output unit outputs the first electricity cost and the second electricity cost. This allows the user to compare the electricity cost of the refrigeration cycle device when the refrigerant is fully charged with the electricity cost of the refrigeration cycle device at the current refrigerant charge rate. Therefore, the user can understand the benefits of being fully charged using a familiar parameter, the electricity cost, and more clearly realize the need for maintenance of the refrigeration cycle device. This further increases the likelihood that the refrigeration cycle device will undergo early maintenance.

[0133] (Technology 3) The refrigeration cycle system described in Technology 1 or 2, wherein the output unit outputs at least one of the rate of increase in the second electricity cost and the amount of increase in the second electricity cost when the refrigerant filling rate is less than a first threshold value. According to this, when there is no need to make the user realize the need for maintenance of the refrigeration cycle device, at least one of the rate of increase in the second electricity charge and the amount of increase in the second electricity charge is not displayed, thereby preventing the user from needlessly displaying at least one of the rate of increase in the second electricity charge and the amount of increase in the second electricity charge. This prevents the user from feeling annoyed by the display of the electricity charge.

[0134] (Technology 4) The refrigeration cycle system described in any one of Technology 1 to Technology 3, wherein the output unit outputs a message indicating that a refrigerant leak has occurred in the refrigeration cycle device when the refrigerant filling rate is less than a second threshold value that is smaller than the first threshold value, and outputs at least one of the second electricity cost increase rate and the second electricity cost increase amount when the refrigerant filling rate is less than the first threshold value and equal to or greater than the second threshold value. According to this, when there is no need to make the user realize the need for maintenance of the refrigeration cycle device, at least one of the rate of increase in the second electricity charge and the amount of increase in the second electricity charge is displayed, and when maintenance of the refrigeration cycle device is necessary, a message is displayed indicating that a refrigerant leak has occurred. This allows the user to more easily realize the need for maintenance of the refrigeration cycle device, and when maintenance of the refrigeration cycle device is necessary, the user can understand that maintenance is necessary. This further increases the likelihood that the refrigeration cycle device will be maintained early.

[0135] (Technical Aspect 5) The refrigeration cycle system according to Technical Aspect 3 or 4, wherein the output unit outputs a signal indicating that the refrigerant filling state of the refrigeration cycle device is normal when the refrigerant filling rate is equal to or greater than the first threshold value. This allows the user to easily understand that maintenance of the refrigeration cycle device is not required.

[0136] (Technology 6) A refrigeration cycle system described in any one of Technology 1 to Technology 5, wherein the output unit outputs at least one of the increase in the second electricity cost and the increase rate of the second electricity cost when the refrigerant filling rate is on a decreasing trend. This allows the user of the refrigeration cycle device to realize the need for maintenance of the refrigeration cycle device when the refrigerant filling rate is on a decreasing trend, thereby increasing the likelihood that the refrigeration cycle device will undergo maintenance early when the refrigerant filling rate is on a decreasing trend.

[0137] (Technical Aspect 7) The refrigeration cycle system according to Technical Aspect 2, wherein the output unit outputs at least one of the rate of increase in the second electricity cost and the amount of increase in the second electricity cost in an emphasized manner. This allows the user to pay attention to at least one of the rate of increase in the second electricity charge and the amount of increase in the second electricity charge, thereby increasing the likelihood that the user of the refrigeration cycle device will quickly realize the need for maintenance of the refrigeration cycle device, and thus further increasing the likelihood that the refrigeration cycle device will be maintained early.

[0138] (Technology 8) A refrigeration cycle system described in any one of Technology 1 to Technology 7, wherein the output unit outputs the repair cost of the refrigeration cycle device together with at least one of the rate of increase in the second electricity cost and the amount of increase in the second electricity cost. According to this, by also displaying factors that can be used as deciding factors for whether or not to perform maintenance on the refrigeration cycle device, it is possible to support early decision on whether or not to perform maintenance on the refrigeration cycle device, thereby further increasing the possibility that the refrigeration cycle device will be maintained early.

[0139] (Technology 9) A program that causes a processor to function as an output unit that outputs at least one of an increase rate of a second electricity cost at a refrigerant filling rate obtained based on operating data of a refrigeration cycle device relative to a first electricity cost when the refrigerant filling state of the refrigeration cycle device is fully filled, and an increase amount of the second electricity cost. This provides the same effects as the refrigeration cycle system described in the first technique. [Industrial Applicability]

[0140] As described above, the refrigeration cycle system and the program according to the present invention can be used to increase the likelihood that a refrigeration cycle device will undergo early maintenance. [Explanation of symbols]

[0141] 1. Air conditioning equipment (refrigeration cycle equipment) 2 Indoor unit 3 Outdoor unit 4 Terminal Devices 5. Server equipment 40 Terminal control device 41 Terminal communication device 42 Display 43 Input Interface 50 Server control device 51 Server communication device 400 Terminal Processor (Processor) 401 Terminal communication unit 402 Display section 403 Reception 410 Terminal Memory 411 Control Program (Program) 500 server processors 501 Server Communication Department 502 Update Department 503 Acquisition Department 504 Calculation Unit 505 Screen generation section 510 Server Memory 511 Control Program 512 1st management DB 513 2nd management DB 1000 Air Conditioning System AG Air Conditioning Related Screen BG1 First bar graph BG11 1st bar graph BG12 1st bar graph BG13 1st bar graph BG2 Second bar graph D1 Operation data IC notification icon J1 First Growth Rate Information J11 string J12 frame J2 Second Growth Rate Information J21 string J22 frame J3 Repair Cost Information NW Network PG Electricity Bill Screen WK Frame

Claims

1. a calculation unit that calculates at least one of an increase rate of a second electricity cost at a refrigerant filling rate acquired based on operation data of the refrigeration cycle device and an increase amount of the second electricity cost relative to a first electricity cost when the refrigerant filling state of the refrigeration cycle device is fully filled; an output unit that outputs at least one of the increase rate of the second electricity cost and the increase amount of the second electricity cost calculated by the calculation unit, Refrigeration cycle system.

2. The output unit outputting the first electricity rate and the second electricity rate; The refrigeration cycle system according to claim 1 .

3. The output unit When the refrigerant charge rate is less than a first threshold, at least one of the increase rate of the second electricity charge and the increase amount of the second electricity charge is output. The refrigeration cycle system according to claim 1 .

4. The output unit When the refrigerant filling rate is less than a second threshold value that is smaller than the first threshold value, a signal indicating that a refrigerant leak has occurred in the refrigeration cycle device is output; When the refrigerant charge rate is less than the first threshold and equal to or greater than the second threshold, at least one of the increase rate of the second electricity cost and the increase amount of the second electricity cost is output. The refrigeration cycle system according to claim 3 .

5. The output unit When the refrigerant filling rate is equal to or greater than the first threshold value, an output is output indicating that the refrigerant filling state of the refrigeration cycle device is normal. The refrigeration cycle system according to claim 3 or 4.

6. The output unit When the refrigerant charging rate is on a decreasing trend, at least one of the increase amount of the second electricity cost and the increase rate of the second electricity cost is output. The refrigeration cycle system according to claim 1 .

7. The output unit At least one of the rate of increase in the second electricity cost and the amount of increase in the second electricity cost is output in an emphasized manner. The refrigeration cycle system according to claim 2 .

8. The output unit outputting a repair cost of the refrigeration cycle device together with at least one of an increase rate of the second electricity cost and an increase amount of the second electricity cost; The refrigeration cycle system according to claim 1 .

9. The processor, an output unit that outputs at least one of an increase rate of a second electricity cost at a refrigerant filling rate acquired based on operation data of the refrigeration cycle device and an increase amount of the second electricity cost relative to a first electricity cost when the refrigerant filling state of the refrigeration cycle device is fully filled; program.

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