Energy monitoring device, energy monitoring method, and program

Abstract

We will automate the process of comparing energy usage data measured for each building. [Solution] The control unit 11 of the energy monitoring device 10 acquires measurement data related to energy use in the building, standardizes the measurement data by associating the items of the acquired measurement data with standard monitoring items predetermined within the energy monitoring device 10, and outputs the standardized measurement data in a manner that allows for comparison of each standard monitoring item.

Description

Technical Field

[0001] The present disclosure relates to an energy monitoring device, an energy monitoring method, and a program.

Background Art

[0002] Techniques for managing measurement data regarding the use of energy such as electric power for each building are known (for example, Patent Document 1). In such techniques, the results of predetermined data processing are output for each building.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The items of measurement data regarding the use of energy measured by sensors, meters, etc. installed in a building may have different names, etc. for each building. Also, even in the same building, the names, etc. of the items of measurement data may be changed due to a change of users, a change in the building management policy, etc. For this reason, when a building manager makes a comparison between buildings of the same item or a comparison over time of the same building, there are many parts that rely on manual work. An object of the present disclosure is to automate the work for enabling comparison of data regarding the use of energy measured for each building.

Means for Solving the Problems

[0005] An energy monitoring device according to this disclosure that achieves the above objective is an energy monitoring device having a control unit that controls the monitoring of energy used in a building, wherein the control unit acquires measurement data relating to energy use in the building, standardizes the measurement data by associating the items of the acquired measurement data with standard monitoring items predetermined within the energy monitoring device, and outputs a plurality of standardized measurement data in a manner that allows comparison for each of the standard monitoring items. In this case, the work required to compare energy use data measured for each building can be automated. Here, the control unit may associate the items of the measurement data with the standard monitoring items based on the correspondence information that has been pre-assigned to each item of the measurement data. In this case, the measurement data can be standardized by assigning correspondence information to each item of the measurement data. Furthermore, the control unit may standardize the measurement data associated with the correspondence information based on said correspondence information. In this case, it becomes easier to compare the measurement data. Furthermore, the control unit may perform calculation processing and graph generation processing using the standardized measurement data, and output the results of said calculation processing and graph generation processing to the user interface in a manner that allows for comparison of each standard monitoring item. In this case, the comparison results of the measurement data can be visually grasped. Furthermore, the energy monitoring method of this disclosure that achieves the above objective is an energy monitoring method in which a control unit of an energy monitoring device that controls the monitoring of energy used in a building acquires measurement data relating to energy use in the building, standardizes the measurement data by associating the items of the acquired measurement data with standard monitoring items predetermined in the energy monitoring device, and outputs a plurality of standardized measurement data in a manner that allows comparison for each of the standard monitoring items. In this case, the work required to make the energy use data measured for each building comparable can be automated. Furthermore, the program of this disclosure that achieves the above objective is a program that causes the control unit of an energy monitoring device that controls the monitoring of energy used in a building to acquire measurement data regarding energy use in the building, standardize the measurement data by associating the items of the acquired measurement data with standard monitoring items predetermined in the energy monitoring device, and output a plurality of standardized measurement data in a manner that allows comparison for each of the standard monitoring items. In this case, the work of making it possible to compare energy use data measured for each building can be automated. [Brief explanation of the drawing]

[0006] [Figure 1] This figure shows an example of the overall configuration of an energy monitoring system including an energy monitoring device to which this embodiment is applied. [Figure 2] This figure shows an example of the hardware configuration of the energy monitoring device shown in Figure 1. [Figure 3] This figure shows an example of the functional configuration of the control unit of the energy monitoring device. [Figure 4] This flowchart shows an example of the processing flow of an energy monitoring device. [Figure 5] This figure shows a specific example of a case where the energy monitoring system shown in Figure 1 is applied. [Figure 6] (A) is a diagram showing a specific example of the standardization process performed by the energy monitoring device in Figure 5. (B) is a diagram showing a specific example of the digital dashboard displayed on the user terminal in Figure 5. [Modes for carrying out the invention]

[0007] The embodiments will be described in detail below with reference to the attached drawings. <Overall configuration of Energy Monitoring System 1> Figure 1 shows an example of the overall configuration of the energy monitoring system 1 to which this embodiment is applied. The energy monitoring system 1 is comprised of an energy monitoring device 10, building management terminals 30-1 to 30-n (where n is an integer value of 1 or more), and user terminals 50-1 to 50-m (where m is an integer value of 1 or more), all connected via a network 90. ​​Hereafter, unless it is necessary to explain the building management terminals 30-1 to 30-n individually, they will be collectively referred to as "building management terminal 30." Similarly, unless it is necessary to explain the user terminals 50-1 to 50-m individually, they will be collectively referred to as "user terminal 50."

[0008] The energy monitoring device 10, which constitutes the energy monitoring system 1, is an information processing device that acts as a server for managing the entire energy monitoring system 1. The building management terminal 30 is an information processing device installed in each building that handles information for managing the building, such as information about the energy used in that building. The user terminal 50 is an information processing device, such as a personal computer, tablet, or smartphone, operated by a user managing one or more buildings for energy monitoring of those buildings. The network 90 is, for example, a LAN (=Local Area Network) or the Internet.

[0009] Energy monitoring system 1 is a system that monitors the energy used in one or more buildings. Energy monitoring system 1 acquires data measured for each building (hereinafter referred to as "measurement data") as data on energy use in the building. Measurement data is data measured by various measuring instruments and sensors installed in the building.

[0010] The energy monitoring system 1 associates the items of the acquired measurement data with items predefined within the energy monitoring system 1 (hereinafter referred to as "standard monitoring items") in order to standardize and monitor those items. This standardizes the items of the measurement data acquired by the energy monitoring system 1. Examples of standard monitoring items include the total power consumption of the building, the power consumption of each piece of equipment, the outside air temperature, and the chiller flow rate if a cooling water circulation device (chiller) is installed.

[0011] Specifically, the energy monitoring system 1 associates the items of the acquired measurement data with standard monitoring items based on pre-assigned correspondence information for each item, and standardizes the measurement data associated with the correspondence information. The correspondence information is not particularly limited as long as it enables the association between the items of the measurement data and the standard monitoring items. In this embodiment, "tags" as correspondence information are pre-assigned to each item of the measurement data, and these tags are used to associate the items of the measurement data with the standard monitoring items.

[0012] The energy monitoring system 1 outputs multiple standardized measurement data in a manner that allows for comparison of each standard monitoring item. For example, the energy monitoring system 1 performs calculation processing and graph generation processing using standardized measurement data, and outputs the results of the calculation processing and graph generation processing to the user interface in a manner that allows for comparison of each standard monitoring item. Specifically, the energy monitoring system 1 generates a digital dashboard that shows the processing results of the calculation processing and graph generation processing in a manner that allows for comparison of each standard monitoring item, and displays it on the user terminal 50.

[0013] [Energy monitoring device 10] The energy monitoring device 10 that constitutes the energy monitoring system 1 can transmit various types of information to the building management terminal 30, the user terminal 50, and the outside, and enable the execution of various processes. Further, the energy monitoring device 10 can acquire various types of information transmitted from the building management terminal 30, the user terminal 50, and the outside, and execute various processes.

[0014] For example, the energy monitoring device 10 acquires measurement data transmitted from the building management terminal 30. The measurement data may be transmitted to the energy monitoring device 10 periodically, or may be transmitted at any time at a predetermined timing. The energy monitoring device 10 performs association based on tags previously attached to each item of the acquired measurement data, and standardizes the measurement data associated with the tags based on the tags.

[0015] The energy monitoring device 10 outputs a plurality of standardized measurement data in a manner that enables comparison for each standard monitoring item. For example, the energy monitoring device 10 performs calculation processing and graph generation processing using the standardized measurement data, and causes the results of the calculation processing and graph generation processing to be output to the user terminal 50 in a manner that enables comparison for each standard monitoring item.

[0016] 〔Building Management Terminal 30〕 The building management terminal 30 that constitutes the energy monitoring system 1 can transmit various types of information to the energy monitoring device 10 and the user terminal 50, and enable the execution of various processes. Further, the building management terminal 30 can acquire various types of information transmitted from the energy monitoring device 10 and the user terminal 50, and execute various processes.

[0017] ​

[0018] User terminal 50 The user terminal 50 that constitutes the energy monitoring system 1 can transmit various kinds of information to the outside, the energy monitoring device 10, and the building management terminal 30. Further, the user terminal 50 can acquire various kinds of information transmitted from the energy monitoring device 10, the building management terminal 30, and the outside, and can execute various kinds of processing.

[0019] An application software (hereinafter referred to as "energy management app") that enables the use of the energy monitoring system 1 is installed in the user terminal 50. When the energy management app is launched on the user terminal 50, a dashboard capable of outputting the results of the calculation processing and graph generation processing performed by the energy monitoring device 10 is displayed on the display.

[0020] The configuration of the energy monitoring system 1 described above is an example, and it is only necessary to have a function that realizes the above-described processing as the entire energy monitoring system 1. Therefore, among the functions that realize the above-described processing, part or all of them may be shared or collaborated by each information processing device in the energy monitoring system 1. In other words, part or all of the functions of the energy monitoring device 10 may be functions of the building management terminal 30 or the user terminal 50. Furthermore, part or all of the functions of each information processing device that constitutes the energy monitoring system 1 may be transferred to other servers or the like not shown in the figure. As a result, the processing as the entire energy monitoring system 1 is promoted, and the processing can also complement each other.

[0021] Hardware configuration Hardware configuration of the energy monitoring device 10 FIG. 2 is a diagram showing an example of the hardware configuration of the energy monitoring device 10 that constitutes the energy monitoring system 1 of FIG. 1. The energy monitoring device 10 includes a control unit 11, a memory 12, a storage unit 13, a communication unit 14, an operation unit 15, and a display unit 16. These units are connected by a data bus, an address bus, a PCI (Peripheral Component Interconnect) bus, etc.

[0022] The control unit 11 is a processor that controls the functions of the energy monitoring device 10 through the execution of various software such as an OS (operating system) and application software. In this embodiment, various processes are executed on any computer. This computer may be implemented as a processor as hardware, a program as software, or a combination thereof. This computer may be a general-purpose computer, a computer for a specific purpose, a workstation, or any other system capable of executing various processes.

[0023] The processor is configured to perform various processes in cooperation with the program. The processor can function as each unit or each means in this embodiment. The execution order of the processes performed by the processor is not limited to the order described in this embodiment and can be changed as needed.

[0024] A processor can be configured with one or more hardware components. The types of hardware that make up a processor are not limited to any particular type. For example, a processor may be a CPU (=Central Processing Unit), an MPU (=Micro Processing Unit), a programmable logic device such as an FPGA (=Field Programmable Gate Array), a dedicated circuit for performing specific processing such as an ASIC (=Application Specific Integrated Circuit), a GPU (=Graphic Processing Unit), or hardware such as an NPU (=Neural Processing Unit).

[0025] A processor can be configured not only with a combination of multiple hardware components of the same type, but also with a combination of multiple hardware components of different types. When multiple hardware components are configured to perform one or more processes of a given processor, these components may reside in physically separate devices or in the same device. Hardware is composed of electrical circuits, etc., which are combinations of circuit elements such as semiconductor elements.

[0026] In any embodiment, the execution order of various processes by the processor is not limited to the order described in each embodiment and can be changed as necessary. The program may be firmware or software such as microcode. The program may also be, for example, a group of program modules. Each function constituting the group of program modules may be implemented by a processor configured to execute each function. The program in each embodiment may be program code or multiple code segments stored in one or more non-temporary computer-readable media (e.g., semiconductor memory, magnetic or optical storage media, or other storage).

[0027] A program may be divided and stored on multiple non-temporary computer-readable media located on devices that are physically separated from each other. Program code and multiple code segments may be represented by any combination of procedures, functions, subprograms, routines, subroutines, modules, software packages, classes, instructions, data structures, and program statements. Program code and multiple code segments may be connected to other code segments or hardware circuits by sending and receiving information, data, arguments, parameters, or memory contents.

[0028] Memory 12 is a memory area that stores various software and data used for its execution, and is used as a work area during calculations. Memory 12 is composed of, for example, RAM (=Random Access Memory).

[0029] The memory unit 13 is a memory area that stores input data for various software and output data from various software. The memory unit 13 is composed of, for example, an HDD (=Hard Disk Drive), SSD (=Solid State Drive), or semiconductor memory used to store programs and various setting data. The memory unit 13 is provided with a database for storing various information. An example of a database provided in the memory unit 13 is a database that stores building information.

[0030] The communication unit 14 transmits and receives data between the building management terminal 30, the user terminal 50, and the outside world via the network 90. ​​The operation unit 15 consists of, for example, a keyboard, mouse, mechanical buttons, and switches, and accepts input operations.

[0031] The operation unit 15 also includes a touch sensor that forms a touch panel integrally with the display unit 16. The display unit 16 is composed of, for example, a liquid crystal display or an organic EL (=Electro-Luminescence) display used for displaying information, and displays image and text data. The display unit 16 displays a user interface, etc.

[0032] [Hardware configuration of building management terminal 30 and user terminal 50] The building management terminal 30 and the user terminal 50 each include a control unit, memory, storage unit, communication unit, operation unit, and display unit, respectively, corresponding to the control unit 11, memory 12, storage unit 13, communication unit 14, operation unit 15, and display unit 16 shown in Figure 2.

[0033] <Functional Configuration> [Functional configuration of the control unit 11 of the energy monitoring device 10] Figure 3 shows an example of the functional configuration of the control unit 11 of the energy monitoring device 10 shown in Figure 2. The control unit 11 of the energy monitoring device 10 functions as an acquisition unit 111 that acquires various types of information and a management unit 112 that records and manages various types of information. In addition, the control unit 11 functions as a standardization unit 113 that standardizes measurement data, a generation unit 114 that generates various types of information, and a transmission control unit 115 that controls the transmission of various types of information.

[0034] The acquisition unit 111 acquires various types of information via the communication unit 14 (see Figure 2). For example, the acquisition unit 111 acquires measurement data transmitted from the building management terminal 30. The management unit 112 stores and manages the measurement data acquired by the acquisition unit 111 in the database of the storage unit 13 (see Figure 2).

[0035] The standardization unit 113 associates the measurement data items with standard monitoring items based on tags pre-assigned to each item of the measurement data acquired by the acquisition unit 111, and standardizes the measurement data associated with the tags. The standardization unit 113 may associate items of measurement data with standard monitoring items based on a machine learning model that uses past performance data of the process of standardizing measurement data as training data.

[0036] The generation unit 114 performs calculation processing and graph generation processing using measurement data standardized by the standardization unit 113, and generates a digital dashboard that displays the processing results in a manner that allows for comparison of each standard monitoring item. In the calculation processing using the standardized measurement data, various calculations are performed, including arithmetic operations, such as calculating the average value of multiple standardized measurement data.

[0037] Calculations using standardized measurement data include the creation of standard graphs such as trend graphs (line graphs, bar graphs, stacked bar graphs, etc.) and analytical graphs (histograms, pie charts, scatter plots, etc.). Custom graphs can also be created according to user requirements regarding axes, size, and layout. Furthermore, multi-building management (maps, etc.) can be generated.

[0038] The generation unit 114 performs calculation and graph generation processing using time-series measurement data of the same building, and generates a digital dashboard that displays the processing results in a manner that allows for comparison of each standard monitoring item. In addition, the generation unit 114 performs calculation and graph generation processing using time-series measurement data of multiple buildings, and generates a digital dashboard that displays the processing results in a manner that allows for comparison of each standard monitoring item.

[0039] The digital dashboard generated by the generation unit 114 can, for example, display data for a period specified by the user. It also allows for customization of the layout of the data displayed on the digital dashboard (e.g., graphs). Furthermore, it enables the system to specify data to be monitored and issue alerts for data exceeding predetermined thresholds.

[0040] The transmission control unit 115 controls the transmission of various types of information via the communication unit 14 to the building management terminal 30, the user terminal 50, and external sources. For example, the transmission control unit 115 controls the transmission of the digital dashboard generated by the generation unit 114 to the user terminal 50.

[0041] <Processing flow of energy monitoring device 10> Figure 4 is a flowchart showing an example of the processing flow of the energy monitoring device 10. When measurement data is transmitted from the building management terminal 30 (YES in step 41), the energy monitoring device 10 acquires and manages the transmitted measurement data (step 42). Conversely, if no measurement data is transmitted (NO in step 41), the energy monitoring device 10 repeats the decision process in step 41. The measurement data transmitted to the energy monitoring device 10 includes information on various energy uses, such as electricity consumption and gas consumption.

[0042] The energy monitoring device 10 standardizes the measurement data acquired in step 42 (step 43). Specifically, the energy monitoring device 10 associates the measurement data items with standard monitoring items based on tags pre-assigned to each measurement data item, and standardizes the measurement data associated with the tags.

[0043] The energy monitoring device 10 performs calculation and graph generation processing using the measurement data standardized in step 43 (step 44), and generates a digital dashboard that displays the processing results in a manner that allows for comparison of each standard monitoring item (step 45). Then, the energy monitoring device 10 transmits the digital dashboard generated in step 45 to the user terminal 50 (step 46).

[0044] <Specific example> [Specific examples of cases where energy monitoring system 1 is applied] Figure 5 shows a specific example of a case in which the energy monitoring system 1 shown in Figure 1 is applied. Figure 5 shows buildings 201 and 202 to which the energy monitoring system 1 is applied, and building management terminals 30-1 and 30-2, respectively, which handle information regarding the energy used in buildings 201 and 202. It also shows an energy monitoring device 10 that manages the entire energy monitoring system 1, and a user terminal 50 operated by a user who manages buildings 201 and 202.

[0045] The building management terminal 30-1 transmits measurement data regarding energy use in building 201 to the energy monitoring device 10 periodically or at predetermined intervals. The building management terminal 30-2 transmits measurement data regarding energy use in building 202 to the energy monitoring device 10 periodically or at predetermined intervals. The measurement data transmitted from each of the building management terminals 30-1 and 30-2 is tagged by item.

[0046] The energy monitoring device 10 acquires measurement data transmitted from building management terminal 30-1 and measurement data transmitted from building management terminal 30-2. Then, based on tags pre-assigned to each item of the acquired measurement data, the energy monitoring device 10 associates the measurement data items with standard monitoring items and standardizes the measurement data associated with each tag.

[0047] The energy monitoring device 10 performs calculation and graph generation processing using measurement data from standardized building 201 and standardized building 202. The energy monitoring device 10 then generates a digital dashboard that displays the processing results in a manner that allows for comparison of each standard monitoring item, and transmits it to the user terminal 50.

[0048] The user terminal 50 launches the energy management application based on the user's input operations for monitoring the energy consumption of buildings 201 and 202. The user terminal 50 then retrieves the digital dashboard generated by the energy monitoring device 10 and displays it on its screen. The digital dashboard displays measurement data regarding energy usage in buildings 201 and 202 in a comparable format (numerical values ​​and graphs).

[0049] [Specific examples of standardization processes] Figure 6(A) shows a specific example of the standardization process performed by the energy monitoring device 10 in Figure 5. In the example in Figure 6(A), it is assumed that energy monitoring is performed using measurement data of electricity usage.

[0050] In the example shown in Figure 6(A), suppose the user managing buildings 201 and 202 in Figure 5 above wants to compare the electricity consumption of buildings 201 and 202 in a specific year (202X). In building 201, building management terminal 30-1 manages the monthly measurement data from electricity meters installed on each floor, assigning it the item name "Floor Electricity Consumption". Building management terminal 30-1 also calculates the total monthly electricity consumption for all floors by summing the "Floor Electricity Consumption" for each floor, and manages this under the item name "Total Floor Electricity Consumption". Furthermore, the "Total Floor Electricity Consumption" item is tagged to indicate that it corresponds to the standard monitoring item "Monthly Electricity Consumption".

[0051] In building 202, the building management terminal 30-2 manages the monthly measurement data from the electricity meter common to all floors, assigning it the item name "Electricity Usage (Monthly)". Furthermore, the "Electricity Usage (Monthly)" item is tagged to indicate that it corresponds to the standard monitoring item "Monthly Electricity Usage". The energy monitoring device 10 (see Figure 5) aggregates items with such tags as if they correspond to the standard monitoring item "Monthly Electricity Usage". The aggregation results are displayed on the digital dashboard on the user terminal 50.

[0052] Figure 6(B) shows a specific example of the digital dashboard displayed on the user terminal 50 in Figure 5. The digital dashboard in Figure 6(B) shows the one-year trend of "monthly electricity consumption" for building 201 and the one-year trend of "monthly electricity consumption" for building 202. Users can easily compare the electricity consumption of building 201 and building 202 in a specific year (202X) based on the information displayed on the digital dashboard.

[0053] <Other Embodiments> Each configuration described above is not limited to the embodiments and their variations, and can be modified without departing from the spirit of the claims. In other words, it is understood that a variety of changes in form and details are possible without departing from the spirit and scope of the claims. The configurations described above are not the only ones you may use; you may also omit some of the components in each configuration described above, or add other functions to each configuration described above. Furthermore, although multiple embodiments have been described above, it is also possible to swap the configurations included in one embodiment with those included in other embodiments, or to add the configurations included in one embodiment to other embodiments.

[0054] Each of the embodiments described above can be understood as follows. In other words, the energy monitoring device of this disclosure (for example, the energy monitoring device 10 in Figure 1) is an energy monitoring device having a control unit (for example, the control unit 11 in Figure 2) that controls the monitoring of energy used in a building, wherein the control unit acquires measurement data regarding the use of energy (for example, electricity) in a building (for example, buildings 201 and 202 in Figure 5), standardizes the measurement data by associating the items of the acquired measurement data with predefined standard monitoring items within the energy monitoring device, and outputs the standardized measurement data in a manner that allows for comparison of each standard monitoring item (for example, the dashboard in Figure 6(B)). In this case, the measurement data on energy usage measured for each building is standardized, so the process of comparing multiple measurement data can be automated.

[0055] Here, the control unit may associate the measurement data items with standard monitoring items based on pre-associated correspondence information (for example, the tags mentioned above) for each measurement data item. In this case, the measurement data can be standardized by attaching correspondence information to each item of the measurement data.

[0056] Furthermore, the control unit may standardize the measurement data associated with the correspondence information based on the correspondence information. In this case, the correspondence information is standardized, making it easier to compare measurement data.

[0057] Furthermore, the control unit may perform calculation processing and graph generation processing using standardized measurement data, and output the results of the calculation processing and graph generation processing to the user interface in a manner that allows for comparison for each standard monitoring item. In this case, the results of comparing energy usage measurement data measured for each building can be visually understood. Furthermore, it is expected to be useful in situations where the knowledge and skills required for software development are limited.

[0058] Furthermore, the energy monitoring method of this disclosure is an energy monitoring method in which a control unit of an energy monitoring device that controls the monitoring of energy used in a building acquires measurement data related to energy use in the building, standardizes the measurement data by associating the items of the acquired measurement data with standard monitoring items predetermined in the energy monitoring device, and outputs a plurality of the standardized measurement data in a manner that allows comparison for each of the standard monitoring items. In this case, the measurement data on energy usage measured for each building is standardized, so the process of comparing multiple measurement data can be automated.

[0059] Furthermore, the program disclosed herein is a program that controls the control unit of an energy monitoring device that controls the monitoring of energy used in a building to acquire measurement data related to energy use in the building, standardize the measurement data by associating the items of the acquired measurement data with standard monitoring items defined in advance within the energy monitoring device, and output multiple standardized measurement data in a manner that allows for comparison for each standard monitoring item. In this case, the measurement data on energy usage measured for each building is standardized, so the process of comparing multiple measurement data can be automated. [Explanation of symbols]

[0060] 1...Energy monitoring system, 10...Energy monitoring device, 11...Control unit, 30...Building management terminal, 50...User terminal, 90...Network, 111...Acquisition unit, 112...Management unit, 113...Standardization unit, 114...Generation unit, 115...Transmission control unit, 201, 202...Building

Claims

1. An energy monitoring device having a control unit that controls the monitoring of energy used in a building, The control unit, We acquire measurement data regarding energy use in the aforementioned building, Based on the correspondence information assigned to each item of the acquired measurement data, the items of the measurement data are associated with standard monitoring items predefined within the energy monitoring device, thereby standardizing the items of the measurement data. Multiple sets of measurement data, with the items of the measurement data standardized, are output in a manner that allows for comparison using the standard monitoring items. Energy monitoring device.

2. The control unit performs calculation processing and graph generation processing using the plurality of measurement data sets, in which the items of the measurement data have been standardized, and outputs the results of the calculation processing and graph generation processing to the user interface in a manner that allows comparison using the standard monitoring items. The energy monitoring device according to claim 1.

3. The control unit of the energy monitoring device that controls the monitoring of energy used in a building, We acquire measurement data regarding energy use in the aforementioned building, Based on the correspondence information assigned to each item of the acquired measurement data, the items of the measurement data are associated with standard monitoring items predefined within the energy monitoring device, thereby standardizing the items of the measurement data. Multiple sets of measurement data, with the items of the measurement data standardized, are output in a manner that allows for comparison using the standard monitoring items. Energy monitoring methods.

4. In the control unit of the energy monitoring device that controls the monitoring of energy used in a building, To obtain measurement data regarding energy use in the aforementioned building, Based on the correspondence information assigned to each item of the acquired measurement data, the items of the measurement data are associated with standard monitoring items predefined within the energy monitoring device, thereby standardizing the items of the measurement data. A program for controlling the output of multiple measurement data sets, each with standardized measurement data items, in a manner that allows for comparison using the standard monitoring items.

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