Energy management system, energy management method, and program

Abstract

We provide an energy management system that can manage information used to assess the value of equipment. [Solution] The energy management system 10 includes a storage unit 43 in which the cumulative power consumption of equipment 35 installed in the house 70 is stored in association with the identification information of the equipment 35, an acquisition unit 44 that acquires power consumption information of equipment 35 measured by a power measuring device 30 installed in the house 70, and a calculation unit 45 that updates the cumulative power consumption by adding the power consumption amount indicated by the acquired power consumption information to the cumulative power consumption.

Description

Technical Field

[0001] The present invention relates to an energy management system, an energy management method, and a program.

Background Art

[0002] Patent Document 1 discloses a power management system that can present an energy-saving plan according to the actual usage situation of power and enable residents to perform energy-saving actions without difficulty.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The present invention provides an energy management system or the like that can manage information used for value judgment of facilities.

Means for Solving the Problems

[0007] A program according to one aspect of the present invention is a program for causing a computer to execute the energy management method described above. [Effects of the Invention]

[0008] An energy management system, etc., according to one aspect of the present invention, can manage information used for valuing equipment. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a block diagram showing the configuration of an energy management system according to an embodiment. [Figure 2] Figure 2 is a sequence diagram showing an example of the power consumption information management operation. [Figure 3] Figure 3 is a sequence diagram of the management operation for cumulative power consumption and cumulative operating time. [Figure 4] Figure 4 is a sequence diagram of Example 1 of the operation for displaying cumulative power consumption and cumulative operating time. [Figure 5] Figure 5 shows an example of a display screen for equipment data. [Figure 6] Figure 6 is a sequence diagram of Example 2 of the operation for displaying cumulative power consumption and cumulative operating time. [Modes for carrying out the invention]

[0010] The embodiments will be described in detail below with reference to the drawings. Note that the embodiments described below are all comprehensive or specific examples. The numerical values, shapes, materials, components, arrangement positions and connection configurations of components, steps, and the order of steps shown in the following embodiments are examples only and are not intended to limit the present invention. Furthermore, components in the following embodiments that are not described in an independent claim will be described as optional components.

[0011] Please note that each figure is a schematic diagram and not necessarily a strictly accurate representation. Furthermore, in each figure, substantially identical components are denoted by the same reference numerals, and redundant explanations may be omitted or simplified.

[0012] (Embodiment) [composition] First, the configuration of the energy management system according to the embodiment will be described. Figure 1 is a block diagram showing the configuration of the energy management system according to the embodiment.

[0013] The energy management system 10 is a system that can manage the cumulative power consumption and cumulative operating time of equipment 35 installed in a residence 70 as information used for value judgment (evaluation) of the equipment 35. The energy management system 10 comprises a control device 20, a power measuring device 30, multiple pieces of equipment 35, a power management server 40, a mobile terminal 50, and a timestamp authentication server 60. The control device 20, the power measuring device 30, and the multiple pieces of equipment 35 are installed on the premises of the residence 70, while the power management server 40 and the timestamp authentication server 60 are installed outside the residence 70. The mobile terminal 50 is located outside the residence 70, but may also be located inside the residence 70. The residence 70 is an example of a facility, specifically a detached house, but may also be an apartment building. The energy management system 10 may also be applied to facilities other than the residence 70, such as accommodation facilities.

[0014] The control device 20 is an EMS controller having an energy management function. The control device 20 manages the power consumption in the house 70 based on the power consumption measured by the power measurement device 30. Also, the control device 20 can control the equipment 35 communicatively connected to the control device 20. The control device 20 is not limited to an EMS controller and may be another controller or a gateway device. The control device 20 includes an operation reception unit 21, a display unit 22, an information processing unit 23, a storage unit 24, a first communication unit 25, and a second communication unit 26.

[0015] The operation reception unit 21 receives operations of users such as residents of the house 70. The operation reception unit 21 is realized, for example, by a touch panel, but may be realized by a hardware key or the like.

[0016] The display unit 22 displays an image. The display unit 22 is realized, for example, by a display panel such as a liquid crystal panel or an organic EL (Electro-Luminescence) panel. Note that the display unit 22 may be separate from the control device 20.

[0017] The information processing unit 23 performs display processing and the like for displaying the power consumption in the house 70 on the display unit 22. The information processing unit 23 is realized, for example, by a microcomputer, but may be realized by a processor. The functions of the information processing unit 23 are realized, for example, when a microcomputer or a processor or the like constituting the information processing unit 23 executes a computer program stored in the storage unit 24.

[0018] The storage unit 24 is a storage device that stores computer programs and the like executed by the information processing unit 23. The storage unit 24 is realized, for example, by a semiconductor memory.

[0019] The first communication unit 25 is a communication circuit for the control device 20 to communicate with equipment 35 and a power measurement device 30 etc. that are communicatively connected to the control device 20 via a local communication network. The first communication unit 25 is, for example, a wireless communication circuit that performs wireless communication, but may also be a wired communication circuit that performs wired communication. The communication standard of the communication performed by the first communication unit 25 is, for example, ECHONET Lite (registered trademark), but is not particularly limited.

[0020] The second communication unit 26 is a communication circuit for the control device 20 to communicate with a power management server 40, a mobile terminal 50, a timestamp authentication server 60 etc. via a wide-area communication network 80. The second communication unit 26 is, for example, a wireless communication circuit that performs wireless communication, but may also be a wired communication circuit that performs wired communication. There is no particular limitation on the communication standard of the communication performed by the second communication unit 26.

[0021] The power measurement device 30 measures the power consumption in the house 70. The power measurement device 30 is, for example, a distribution board having a power measurement function, and measures the power consumption for each branch circuit provided in the house 70. The power measurement device 30 may be a smart meter. The power measurement function is, for example, realized by a current sensor (CT: Current Transformer).

[0022] The plurality of pieces of equipment 35 are equipment provided in the house 70. At least a part of the plurality of pieces of equipment 35 is communicatively connected to the control device 20 and is controlled by the control device 20. The plurality of pieces of equipment 35 include lighting equipment, air conditioning equipment, ventilation equipment, air purification equipment, electric shutters, electric locks, heat pump water heaters, fuel cell power generation systems, solar power generation systems, power storage systems, home delivery boxes, and charging and discharging equipment for electric vehicles etc.

[0023] The power management server 40 is a cloud server that manages the cumulative power consumption and cumulative operating time of the equipment 35 installed in the house 70. The power management server 40 can communicate with the control device 20 and the mobile terminal 50 via a wide-area communication network 80. The power management server 40 is operated and managed, for example, by the manufacturer and distributor of the control device 20. The power management server 40 comprises a communication unit 41, an information processing unit 42, and a storage unit 43.

[0024] The communication unit 41 is a communication circuit for the power management server 40 to communicate with the control device 20, the mobile terminal 50, and the time stamp authentication server 60, etc., via the wide-area communication network 80. The communication unit 41 is, for example, a wired communication circuit for wired communication, but it may also be a wireless communication circuit for wireless communication. There are no particular limitations on the communication standards used by the communication unit 41.

[0025] The information processing unit 42 performs information processing to manage the cumulative power consumption and cumulative operating time of the equipment 35. The information processing unit 42 is implemented by, for example, a microcomputer, but may also be implemented by a processor. The information processing unit 42 has an acquisition unit 44 and an arithmetic unit 45 as functional components. The functions of the acquisition unit 44 and the arithmetic unit 45 are realized, for example, by the microcomputer or processor constituting the information processing unit 42 executing a computer program stored in the storage unit 43.

[0026] The storage unit 43 is a memory device that stores information necessary for the information processing unit 42 to perform the above-mentioned information processing. Such information includes computer programs executed by the information processing unit 42. The storage unit 43 is implemented, for example, by semiconductor memory.

[0027] The mobile terminal 50 is a portable information terminal owned by the user, specifically a smartphone or tablet device. The mobile terminal 50 can communicate with the power management server 40 via a wide-area communication network 80. The mobile terminal 50 is equipped with a display unit 51. The display unit 51 is implemented by a display panel such as a liquid crystal panel or an organic EL panel.

[0028] The timestamp authentication server 60 is a server device (in other words, a time authentication authority) that assigns a timestamp (electronic certificate) to electronic data. Electronic data to which a timestamp has been assigned is authenticated (guaranteed) that the electronic data existed at the time indicated by the timestamp, and that the electronic data has not been tampered with since that time.

[0029] [Management of power consumption information] As described above, the control device 20 can manage the amount of power consumed in each of the multiple branch circuits by acquiring power consumption information that shows the power consumption of each branch circuit measured by the power measuring device 30. The following describes the operation of managing such power consumption information. Figure 2 is a sequence diagram showing an example of the operation of managing power consumption information.

[0030] The information processing unit 23 of the control device 20 transmits request information for acquiring power consumption information to the power measuring device 30 using the first communication unit 25 (S11). In response to the request information, the information processing unit 23 acquires (receives) power consumption information showing the power consumption of each branch circuit in the house 70 (S12), and stores the acquired power consumption information in the storage unit 24 (S13). The power consumption information is information showing time-series data of power consumption for each branch circuit, and is information that associates power consumption with time.

[0031] In this way, the control device 20 can manage the power consumption of each of the multiple branch circuits. The power consumption information management operation shown in Figure 2 is performed periodically and automatically, for example, once every hour.

[0032] [Management of cumulative power consumption and cumulative operating time] The power management server 40 can manage the cumulative power consumption and cumulative operating time of multiple pieces of equipment 35 corresponding to multiple branch circuits by acquiring power consumption information from the control device 20. The following describes the management operation of such cumulative power consumption and cumulative operating time. Figure 3 is a sequence diagram of the management operation of cumulative power consumption and cumulative operating time.

[0033] The information processing unit 23 of the control device 20 reads the power consumption information stored in the memory unit 24 (S21), and transmits the read power consumption information to the power management server 40 using the second communication unit 26 (S22).

[0034] The communication unit 41 of the power management server 40 receives power consumption information. The acquisition unit 44 acquires the received power consumption information (S23). More specifically, the power consumption information is power consumption information of multiple pieces of equipment 35 corresponding to multiple branch circuits, measured by a power measuring device 30 installed in the house 70.

[0035] The calculation unit 45 calculates the power consumption and operating time of each of the multiple pieces of equipment 35 corresponding to multiple branch circuits based on the acquired power consumption information (S24). The calculation unit 45 can, for example, calculate the power consumption of the equipment 35 connected to a branch circuit by integrating the power consumption in the branch circuit. The calculation unit 45 can also calculate the operating time of the equipment 35 connected to a branch circuit by summing the periods during which the power consumption in the branch circuit is above a threshold. This threshold is used to determine whether or not the equipment 35 is in operation.

[0036] Here, the storage unit 43 of the power management server 40 has pre-stored (registered) name information that shows the correspondence between the identification information of the branch circuit and the name of the equipment 35 connected to the branch circuit. In other words, the storage unit 43 stores the cumulative power consumption and cumulative operating time of the equipment 35 installed in the house 70, linked to the identification information (name) of the equipment 35.

[0037] The calculation unit 45 updates the cumulative power consumption of each of the multiple pieces of equipment 35 by adding the power consumption calculated in step S24 to the cumulative power consumption of each of the multiple pieces of equipment 35 stored in the storage unit 43 (S25). The calculation unit 45 also updates the cumulative operating time of each of the multiple pieces of equipment 35 by adding the operating time calculated in step S24 to the cumulative operating time of each of the multiple pieces of equipment 35 stored in the storage unit 43 (S26).

[0038] In this way, the power management server 40 can manage the cumulative power consumption and cumulative operating time of multiple pieces of equipment 35 corresponding to multiple branch circuits. The management operation of cumulative power consumption and cumulative operating time shown in Figure 3 is performed periodically and automatically at a frequency such as once a day (a lower frequency than the power consumption information management operation shown in Figure 2).

[0039] Furthermore, the management of the cumulative power consumption of equipment 35 begins when equipment 35 is newly installed in the residence 70, and the cumulative power consumption of equipment 35 is reset when equipment 35 is replaced with another new piece of equipment 35. Similarly, the management of the cumulative operating time of equipment 35 begins when equipment 35 is newly installed in the residence 70, and the cumulative operating time of equipment 35 is reset when equipment 35 is replaced with another new piece of equipment 35. The fact that equipment 35 has been replaced with a new piece of equipment 35 is notified to the power management server 40, for example, based on a predetermined operation by the user to the control device 20.

[0040] It is not mandatory for both cumulative power consumption and cumulative operating time to be managed; it is sufficient if at least one of them is managed.

[0041] [Example 1 of displaying cumulative power consumption and cumulative operating time] The power management server 40 can display cumulative power consumption and cumulative operating time to the user. The following describes the operation of displaying such cumulative power consumption and cumulative operating time. Figure 4 is a sequence diagram of Example 1 of the operation of displaying cumulative power consumption and cumulative operating time.

[0042] The acquisition unit 44 of the power management server 40 acquires the cumulative power consumption, cumulative operating time, and name information stored in the storage unit 43 (S31), and the calculation unit 45 generates equipment data (data file) including the acquired cumulative power consumption, cumulative operating time, and name information (S32). The calculation unit 45 also sends an authentication request including the generated equipment data to the timestamp authentication server 60 using the communication unit 41 (S33). The processing in step S33 is an example of an authentication request process for receiving timestamp authentication on the cumulative power consumption and cumulative operating time stored in the storage unit 43.

[0043] When the timestamp authentication server 60 receives an authentication request, it attaches a timestamp (electronic certificate) to the equipment data included in the received authentication request (S34). This authenticates (guarantees) that the equipment data with the timestamp existed at the time indicated by the timestamp and has not been tampered with since. The timestamp authentication server 60 sends the equipment data with the timestamp to the power management server 40 (S35).

[0044] The communication unit 41 of the power management server 40 receives equipment data with a timestamp. The acquisition unit 44 acquires the equipment data with a timestamp (S36), and the calculation unit 45 stores the equipment data with a timestamp in the storage unit 43 (S37).

[0045] Furthermore, the calculation unit 45 transmits (outputs) the timestamped equipment data to the control device 20 using the communication unit 41 (S38a). The equipment data output in step S38a is an example of display information. If the multiple pieces of equipment 35 include multiple types of equipment 35 with different functions (such as lighting equipment and air conditioning equipment), the equipment data output in step S38a can be said to be an example of display information for displaying the cumulative power consumption and cumulative operating time of each of the multiple types of equipment 35 that have been timestamp authenticated, along with the identification information (name) of each of the multiple types of equipment 35.

[0046] The second communication unit 26 of the control device 20 receives equipment data. The information processing unit 23 pushes notification to the user that the latest equipment data is available for viewing by displaying notification information on the display unit 22 (S39a).

[0047] The user performs a viewing operation to view equipment data, and the operation reception unit 21 accepts the viewing operation (S40a). The information processing unit 23 displays the equipment data (cumulative power consumption and cumulative operating time for each of the multiple types of equipment 35) on the display unit 22 based on the accepted viewing operation (S41a). Figure 5 shows an example of the equipment data display screen.

[0048] As described above, the energy management system 10 can display the cumulative power consumption and cumulative operating time to the user by displaying the equipment data on the display unit 22 of the control device 20. More specifically, the energy management system 10 can display the cumulative power consumption and cumulative operating time that have been timestamp authenticated to the user.

[0049] The display operation of cumulative power consumption and cumulative operating time shown in Figure 4 is performed regularly and automatically at a frequency such as once a week or once a month (a lower frequency than the management operation of cumulative power consumption and cumulative operating time shown in Figure 3). In other words, the calculation unit 45 periodically executes authentication request processing at predetermined time intervals, and outputs equipment data to the control device 20 each time authentication request processing is executed.

[0050] [Example 2 of the display operation for cumulative power consumption and cumulative operating time] The power management server 40 can also display the cumulative power consumption and cumulative operating time on the display unit 50 of the mobile terminal 50, either in place of the display unit 22 of the control device 20 or in addition to the display unit 22. The following describes the operation of displaying such cumulative power consumption and cumulative operating time. Figure 6 is a sequence diagram of Example 2 of the operation of displaying cumulative power consumption and cumulative operating time.

[0051] Since the processing in steps S31 to S37 is the same as in Example 1 of the operation to present cumulative power consumption and cumulative operating time, a detailed explanation is omitted.

[0052] After processing in step S37, the calculation unit 45 transmits (outputs) the timestamped equipment data to the mobile terminal 50 using the communication unit 41 (S38b). The equipment data output in step S38b is an example of display information. If the multiple pieces of equipment 35 include multiple types of equipment 35 with different functions, the equipment data output in step S38b can be said to be an example of display information for displaying the cumulative power consumption and cumulative operating time of each of the multiple types of equipment 35 that have been timestamp authenticated, along with the identification information (name) of each of the multiple types of equipment 35.

[0053] The mobile terminal 50 receives equipment data. The mobile terminal 50 pushes notification to the user that the latest equipment data is available for viewing by displaying notification information on the display unit 51 (S39b).

[0054] The user performs a viewing operation to view equipment data, and the mobile terminal 50 accepts the viewing operation (S40b). Based on the accepted viewing operation, the mobile terminal 50 displays the equipment data (cumulative power consumption and cumulative operating time for each of the multiple types of equipment 35) on the display unit 51 (S41b). The display screen for the equipment data is the same as the display screen shown in Figure 5.

[0055] As described above, the energy management system 10 can display the cumulative power consumption and cumulative operating time to the user by displaying the equipment data on the display unit 51 of the mobile terminal 50. More specifically, the energy management system 10 can display the cumulative power consumption and cumulative operating time that have been timestamp authenticated to the user.

[0056] The display operation of cumulative power consumption and cumulative operating time shown in Figure 6 is performed regularly and automatically at a frequency such as once a week or once a month (a lower frequency than the management operation of cumulative power consumption and cumulative operating time shown in Figure 3). In other words, the calculation unit 45 periodically executes authentication request processing at predetermined time intervals such as once a week or once a month, and outputs equipment data to the mobile terminal 50 each time authentication request processing is executed.

[0057] [Differentiation] In the above embodiment, an example was described in which the power management server 40 provides the user (resident of the house 70) with equipment data showing the cumulative power consumption and cumulative operating time of the equipment 35. However, the equipment data may also be provided to a business that determines (evaluates) the value of the equipment 35. For example, if the equipment 35 is equipment installed in the house 70 (and cannot be freely replaced by the resident), the equipment data may be provided to a server device (not shown) used by a business that determines (evaluates) the value of the house 70, including the equipment 35. Alternatively, the equipment data may be provided to a server device (not shown) used by a maintenance business for the equipment 35, or to a server device (not shown) used by a manufacturer or distributor of the equipment 35.

[0058] Furthermore, in the above embodiment, some or all of the processing described as being performed by the power management server 40 may be performed by the control device 20. For example, the control device 20 may include functional components corresponding to the acquisition unit 44 and the calculation unit 45.

[0059] [Effects, etc.] The following describes examples of inventions that can be obtained from the disclosures in this specification, and explains the effects and other benefits that can be obtained from such inventions.

[0060] Invention 1 is an energy management system 10 comprising: a storage unit 43 that stores the cumulative power consumption of equipment 35 installed in a house 70, linked to the identification information of the equipment 35; an acquisition unit 44 that acquires power consumption information of equipment 35 measured by a power measuring device 30 installed in the house 70; and a calculation unit 45 that updates the cumulative power consumption by adding the power consumption amount indicated by the acquired power consumption information to the cumulative power consumption. House 70 is an example of a facility.

[0061] Such an energy management system 10 can manage the cumulative power consumption of the equipment 35 installed in the house 70 as information used to determine the value of the equipment 35.

[0062] Invention 2 is the energy management system 10 of Invention 1, wherein the calculation unit 45 executes an authentication request process to obtain timestamp authentication for the cumulative power consumption stored in the storage unit 43.

[0063] Such an energy management system 10 can receive timestamp authentication for the cumulative power consumption of the equipment 35.

[0064] Invention 3 is an energy management system 10 of Invention 2, wherein the calculation unit 45 further outputs display information for displaying the cumulative power consumption, which has been timestamp authenticated, together with identification information.

[0065] Such an energy management system 10 can visualize the cumulative power consumption that has been timestamp-certified.

[0066] Invention 4 is an energy management system 10 of Invention 3, wherein the storage unit 43 stores the cumulative power consumption of each of several types of equipment 35 with different functions, and the calculation unit 45 outputs display information for displaying the cumulative power consumption of each of the several types of equipment 35 that have been timestamp authenticated together with the identification information of the equipment 35.

[0067] Such an energy management system 10 can visualize the cumulative power consumption of multiple types of equipment 35, which is timestamp-certified.

[0068] Invention 5 is an energy management system 10 according to Invention 3 or 4, wherein the calculation unit 45 periodically performs authentication request processing at predetermined time intervals and outputs display information each time authentication request processing is performed.

[0069] Such an energy management system 10 can periodically perform authentication request processing and visualization processing of cumulative power consumption that has been timestamp authenticated.

[0070] Invention 6 is an energy management system 10 according to any of Inventions 1 to 5, wherein the storage unit 43 further stores the cumulative operating time of the equipment 35 linked to the identification information of the equipment 35, and the calculation unit 45 calculates the operating time of the equipment 35 based on the acquired power consumption information and updates the cumulative operating time by adding the calculated operating time to the cumulative operating time.

[0071] Such an energy management system 10 can manage the cumulative operating time of the equipment 35 installed in the house 70 as information used to determine the value of the equipment 35.

[0072] Invention 7 is an energy management system 10 of Invention 6, wherein the calculation unit 45 executes an authentication request process to obtain timestamp authentication for the cumulative operating time stored in the storage unit 43.

[0073] Such an energy management system 10 can receive timestamp authentication for the cumulative operating time of the equipment 35.

[0074] Invention 8 is an energy management system 10 of Invention 7, wherein the calculation unit 45 further outputs display information for displaying the cumulative operating time, which has been timestamp authenticated, together with identification information.

[0075] Such an energy management system 10 can visualize the cumulative operating time, which has been timestamp-certified.

[0076] Invention 9 is an energy management system 10 of Invention 8, wherein the storage unit 43 stores the cumulative operating time of multiple types of equipment 35 with different functions, and the calculation unit 45 outputs display information for displaying the cumulative operating time of multiple types of equipment 35 that have been timestamp authenticated together with the identification information of the equipment 35.

[0077] Such an energy management system 10 can visualize the cumulative operating time of multiple types of equipment 35, which is timestamp-certified.

[0078] Invention 10 is an energy management system 10 according to Invention 8 or 9, wherein the calculation unit 45 periodically performs authentication request processing at predetermined time intervals and outputs display information each time authentication request processing is performed.

[0079] Such an energy management system 10 can periodically perform authentication request processing and visualization processing of cumulative operating time that has been timestamp authenticated.

[0080] Invention 11 is an energy management system 10 according to any of Inventions 1 to 10, further comprising a power management server 40 including a storage unit 43, an acquisition unit 44, and a calculation unit 45, equipment 35, and a power measuring device 30.

[0081] Such an energy management system 10 can be implemented as a system comprising a power management server 40, equipment 35, and a power measuring device 30.

[0082] Invention 12 is an energy management method performed by a computer, wherein the computer has access to a storage unit 43 in which the cumulative power consumption of equipment 35 installed in a house 70 is stored in association with the identification information of equipment 35, and the energy management method includes an acquisition step of acquiring power consumption information of equipment 35 measured by a power measuring device 30 installed in the house 70, and an update step of updating the cumulative power consumption by adding the power consumption amount indicated by the acquired power consumption information to the cumulative power consumption.

[0083] Such an energy management system 10 can manage the cumulative power consumption of the equipment 35 installed in the house 70 as information used to determine the value of the equipment 35.

[0084] Invention 13 is a program for causing a computer to execute the energy management method of Invention 12.

[0085] According to such a program, the computer can manage the cumulative power consumption of the equipment 35 installed in the house 70 as information used to make a value judgment on the equipment 35.

[0086] (Other embodiments) Although embodiments have been described above, the present invention is not limited to the embodiments described above.

[0087] For example, in the above embodiment, the energy management system was implemented by multiple devices. In this case, the components of the energy management system may be distributed among the multiple devices in any way. Alternatively, the energy management system may be implemented by a single device. For example, the energy management system may be implemented as a single device corresponding to the control device in the above embodiment, or as a single device corresponding to a power management server.

[0088] Furthermore, in the above embodiment, the processing performed by a specific processing unit may be performed by another processing unit. Also, the order of multiple processing units may be changed, or multiple processing units may be executed in parallel.

[0089] Furthermore, in the above embodiment, each component may be realized by executing a software program suitable for each component. Each component may also be realized by a program execution unit such as a CPU or processor reading and executing a software program recorded on a recording medium such as a hard disk or semiconductor memory.

[0090] Furthermore, each component may be implemented by hardware. For example, each component may be a circuit (or integrated circuit). These circuits may form a single circuit as a whole, or they may be separate circuits. Also, each of these circuits may be a general-purpose circuit or a dedicated circuit.

[0091] Furthermore, general or specific embodiments of the present invention may be implemented as a system, apparatus, method, integrated circuit, computer program, or recording medium such as a computer-readable CD-ROM. Alternatively, they may be implemented as any combination of a system, apparatus, method, integrated circuit, computer program, and recording medium.

[0092] For example, the present invention may be implemented as a control device, power management server, or mobile terminal according to the above embodiment. Furthermore, the present invention may be implemented as an energy management method executed by a computer, such as an energy management system, or as a program for causing a computer to execute such an energy management method. The present invention may also be implemented as a computer-readable non-temporary recording medium on which such a program is recorded.

[0093] Furthermore, the present invention also includes forms obtained by applying various modifications to each embodiment that a person skilled in the art could conceive, or forms realized by arbitrarily combining the components and functions of each embodiment without departing from the spirit of the present invention. [Explanation of symbols]

[0094] 10 Energy Management Systems 20 Control device 21 Operation Reception Section 22, 51 Display section 23, 42 Information Processing Unit 24, 43 Storage section 25. First Communications Department 26. Second Communications Department 30 Power measuring device 35 Equipment 40 Power Management Server 41 Communications Department 44 Acquisition Department 45 Arithmetic section 50 Mobile devices 60 Timestamp Authentication Server 70 Housing (Facilities) 80 Wide-area telecommunications network

Claims

1. A storage unit that stores the cumulative power consumption of equipment installed in the facility, linked to the identification information of the equipment, An acquisition unit that acquires power consumption information of the equipment measured by a power measuring device installed in the facility, The system includes a calculation unit that updates the cumulative power consumption by adding the amount of power consumption indicated by the acquired power consumption information to the cumulative power consumption. Energy management system.

2. The calculation unit executes an authentication request process to obtain timestamp authentication for the cumulative power consumption stored in the storage unit. The energy management system according to claim 1.

3. The calculation unit further outputs display information for displaying the cumulative power consumption, which has been timestamp authenticated, together with the identification information. The energy management system according to claim 2.

4. The storage unit stores the cumulative power consumption of each of the multiple types of equipment with different functions. The calculation unit outputs the display information for displaying the cumulative power consumption of each of the multiple types of equipment that have undergone timestamp authentication, together with the identification information of the equipment. The energy management system according to claim 3.

5. The aforementioned arithmetic unit, The aforementioned authentication request process is performed periodically at predetermined time intervals. Each time the authentication request process is executed, the display information is output. The energy management system according to claim 3.

6. The storage unit further stores the cumulative operating time of the equipment, linked to the identification information of the equipment. The aforementioned arithmetic unit, Based on the acquired power consumption information, the operating time of the equipment is calculated. The calculated operating time is added to the cumulative operating time to update the cumulative operating time. The energy management system according to any one of claims 1 to 5.

7. The calculation unit executes an authentication request process to obtain timestamp authentication for the cumulative operating time stored in the storage unit. The energy management system according to claim 6.

8. The calculation unit further outputs display information for displaying the cumulative operating time, which has been timestamp authenticated, together with the identification information. The energy management system according to claim 7.

9. The storage unit stores the cumulative operating time for each of the multiple types of equipment with different functions. The calculation unit outputs the display information for displaying the cumulative operating time of each of the multiple types of equipment that have undergone timestamp authentication, together with the identification information of the equipment. The energy management system according to claim 8.

10. The aforementioned arithmetic unit, The aforementioned authentication request process is performed periodically at predetermined time intervals. Each time the authentication request process is executed, the display information is output. The energy management system according to claim 8.

11. moreover, A server device including the storage unit, the acquisition unit, and the calculation unit, The aforementioned equipment, The power measuring device is included. The energy management system according to any one of claims 1 to 5.

12. A computer-based energy management method, The computer has access to a storage unit in which the cumulative power consumption of the equipment installed in the facility is stored in association with the identification information of the equipment. The aforementioned energy management method is, An acquisition step of acquiring power consumption information of the equipment measured by a power measuring device installed in the facility, The update step includes updating the cumulative power consumption by adding the amount of power consumption indicated by the acquired power consumption information to the cumulative power consumption. Energy management methods.

13. A program for causing the computer to execute the energy management method described in claim 12.

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