JP5113631B2 - Electricity usage notification system - Google Patents

Description

  The present invention relates to an electricity usage notification system for reporting electricity usage.

In recent years, various technologies have been proposed that can confirm the power consumed at home other than invoices sent from power companies. For example, Patent Literature 1 discloses a technique for monitoring the AC power consumption of the entire distribution board installed in a home and displaying the monitoring result on a Web screen.
JP 2000-314752 A

  However, the technique of Patent Document 1 notifies the user of the amount of electricity used in the entire distribution board via the Web screen, and does not notify the amount of electricity used for each electric device. Therefore, the user cannot obtain information such as whether there is a wasteful electric device.

  An object of the present invention is to provide an electricity usage amount notification system capable of notifying a user of electrical devices that are being wasted and saving electricity usage.

  (1) An electricity usage amount notification system according to the present invention includes a plurality of branch breakers, an acquisition unit for acquiring the electricity usage amount of each branch breaker, and a usage state of an electrical device that is presumed to be using power wastefully. Based on the amount of electricity used by each branch breaker acquired by the storage means and the storage means for storing the combination of, the use state of the electrical equipment is determined, and if the use state corresponds to the combination, It is characterized by comprising determination means for determining that the use state of such an electric device is useless, and notifying means for notifying the user of the electric device determined to be use state by the use of the determination means.

  According to this configuration, the amount of electricity used for each branch breaker is acquired, the state of use of the electric device is determined from the amount of electricity used, and the state of use of the electric device is presumed to be wasting power. When it corresponds to the combination, it is determined that the usage state of the electrical device related to the combination is useless, and the user is notified of the electrical device determined to be useless.

  Therefore, from the notification result, for example, the user can obtain information that the floor heating is turned on and the floor heating is being used wastefully even though the room is supposed to have no lights and no people are present. It becomes possible to recognize the power consumption by turning off the floor heating.

  (2) Preferably, when the usage state of the electrical device corresponds to the combination for a certain time or more, the determination unit determines that the usage state of the electrical device related to the combination is useless.

  In this case, when the usage state of the electrical device temporarily corresponds to a combination that is estimated to be a wasteful use of power, the user of the electrical device related to the combination is not notified. This can be notified to the user after the useless use has surely occurred.

  (3) When the number of times that the usage state of the electrical device corresponds to the combination exceeds a predetermined number of times within a predetermined time, the determination unit determines that the usage state of the electrical device related to the combination is useless. Is preferred.

  In this case, when the usage state of the electrical device temporarily corresponds to a combination that is estimated to be a wasteful use of power, the user of the electrical device related to the combination is not notified. This can be notified to the user after the useless use has surely occurred.

  (4) When the usage state of the electrical device corresponds to the combination and the electrical usage amount of the electrical device related to the combination exceeds a predetermined value within a predetermined time, the determination means It is preferable to determine that the use state of the device is useless.

  In this case, when the usage state of the electrical device temporarily corresponds to a combination that is estimated to be a wasteful use of power, the user of the electrical device related to the combination is not notified. This can be notified to the user after the useless use has surely occurred.

  (5) When it is determined by the determination means that the electric device is being used wastefully, a selection input from the user for excluding the combination of the usage state of the electric device as the determination target from the determination target It is preferable to further comprise a selection means for accepting.

  According to this configuration, even if the combination of the usage states of the electric equipment corresponds to wasteful use of power by default, there is a case where the user does not use wasteful power. In this case, it is possible to flexibly respond to the user's request.

  (6) The storage means stores a combination of usage states of the electrical equipment that is presumed to use power wastefully, and reduces the electrical usage of the electrical equipment related to the combination. It is preferable to further include device control means for storing control information for controlling and controlling the electric device determined to be useless by the determination means according to the control information.

  According to this structure, since the said electric equipment is controlled so that the electric usage-amount of the electric equipment judged to be used wastefully is reduced, energy saving can be achieved.

  (7) The acquisition means acquires the amount of electricity used by the main breaker, and calculates the amount of electricity from the first day of this month to today based on the amount of electricity used by the main breaker acquired by the acquisition means. Based on the calculation means, the predetermined electricity bill target value for the current month, and the electric energy calculated by the monthly electric energy calculation means, the unachieved power amount for the unachieved electricity bill target value is not achieved It is preferable that the information processing unit further includes a power amount calculation unit, and the notification unit reports the unachieved power amount calculated by the unachieved power amount calculation unit.

  In this case, it is possible to notify the user of the remaining power amount for setting the current electricity bill to the electricity bill target value.

  (8) Target power for calculating the target power amount per day that can be used for one day by dividing the unachieved power amount calculated by the unachieved power amount calculating means by the remaining days of the current month Calculated by the amount calculation means, the average power consumption calculation means for calculating the average power consumption of each electrical device based on the electricity usage of each branch breaker acquired by the acquisition means, and the average power consumption calculation means Based on the average power consumption of each electric device, an electric device specifying means for specifying a power saving electric device to be saved, a target power amount per day calculated by the target power amount calculating means, and the average power consumption And a power saving time calculating means for calculating a power saving time per day of the power saving electrical device based on the average power consumption calculated by the calculating means, wherein the notification means includes the power saving time calculating means. It is preferable to inform the power-saving time calculated Ri.

  In this case, it is possible to suggest to the user whether or not how much electrical equipment is saved per day and how much electricity can be set to the current electricity bill target value.

  (9) Operation means for receiving an operation input from a user is further provided, and the power saving time calculation means increases or decreases a power saving time per day for any one of the power saving electric devices by the operation means. When the operation input is received, the remaining power-saving electrical devices are set so that the total amount of power-saving power per day of each power-saving electrical device is constant in conjunction with the increase or decrease in the power-saving time of the power-saving electrical device. It is preferable to increase or decrease the power saving time.

  In this case, when the power saving time of a certain power saving electrical device is increased or decreased, the power saving time of the remaining power saving electrical devices is proposed to the user so that the total amount of power saving power per day of each power saving electrical device is constant. can do.

  (10) It is preferable that the electric device specifying unit specifies the power saving electric device according to an operation input by the user for selecting the power saving electric device from the plurality of electric devices received by the operation unit.

  In this case, the user can select a power saving electrical device.

  (11) The operation means accepts an operation input for designating a priority for prescribing a length of power saving time of each power saving electrical device, and the power saving time calculation means further uses the priority to It is preferable to calculate the power saving time per day of the power saving electrical device.

  In this case, the user can set a power saving priority for the selected power saving electrical device.

  According to the present invention, for example, the user is in an electric device in which the floor heating is turned on and the floor heating is being used wastefully even though the room is supposed to have no person with no lighting. It is possible to recognize wasteful use of electricity, and it is possible to save electricity consumption by turning off floor heating.

(Embodiment 1)
Hereinafter, an electricity usage notification system according to Embodiment 1 of the present invention will be described. FIG. 1 shows an overall configuration diagram of the electricity usage notification system. The electricity usage notification system includes a distribution board 1 and a monitor device 5. The distribution board 1 includes a main breaker, a branch breaker, and the like, and supplies electric power supplied from a commercial power source to electric devices arranged in each room. A center server 7 is connected to the distribution board 1 via a predetermined network N3 such as an Internet communication network or a mobile communication network. The center server 7 is installed in, for example, a company that operates this electricity usage amount notification system, and collects and accumulates the electricity usage amount and the like supplied to the electrical equipment in each room by the distribution board 1 via the network N3. Further, the center server 7 transmits various information to the monitor device 8 owned by the user based on the accumulated electricity usage amount and provides various services to the user.

  The distribution board 1 is connected to a monitor device 8 via a network N3. The monitor device 8 is composed of a device such as a mobile phone or a notebook personal computer, and notifies the user of various information. The monitor device 5 is composed of a television set in each room or a dedicated monitor device, and notifies the user of various information.

  In the example of FIG. 1, each living room includes a living room, a bedroom, and a child room, and a lighting device 41 and an air conditioner 42 that are JJEM-A devices are arranged in the living room. A lighting device 43 is arranged in the bedroom, and a lighting device 44 and an air conditioner 45 are arranged in the child room. The illuminating devices 43 and 44 and the air conditioner 45 are ordinary electric devices that are not JEM-A devices. And the distribution board 1 supplies the electric power supplied from the commercial power source to these electric devices.

  FIG. 2 shows a block diagram of the electricity usage notification system. This electricity usage amount notification system mainly includes a distribution board 1, electrical devices 4-1, 4-2, and a monitor device 5. In addition, when generically referring to the electric devices 4-1 and 4-2, the electric device is numbered 4.

  The distribution board 1 includes a main breaker 11, an energy management unit 2, a plurality of branch breakers 12, an integration device 13, and a net remote controller 14. The main breaker 11 supplies electric power from a commercial power source to the electric device 4 via the branch breaker 12. The main breaker 11 is turned off when the level of the current flowing through the main breaker 11 exceeds a certain level, and is supplied to the branch breaker 12. Shut off the power supply.

  The branch breaker 12 branches the electric power from the main breaker 11 and supplies it to the electric equipment 4 arranged in each room. In the present embodiment, it is assumed that one electric device 4 is connected to one branch breaker 12. Then, each branch breaker 12 is turned off when the level of the flowing current exceeds a certain level, and cuts off the power supply to the electrical equipment 4 connected under the branch breaker 12.

  The energy management unit 2 includes a main voltage detector 21, a main current detector 22, a power calculator 23, a branch breaker current detector 24, a calculator 25, a controller 26, and a primary branch breaker 27.

  The main voltage detection unit 21 includes a voltage detection circuit that detects an instantaneous voltage value that is an instantaneous voltage value of the main breaker 11 at a predetermined sampling interval. The main current detection unit 22 includes a current detection circuit that detects an instantaneous current value that is an instantaneous value of current in the main breaker 11 at a predetermined sampling interval.

  The power calculation unit 23 includes an integrated circuit such as an ASIC (Application Specific Integrated Circuit), and multiplies the instantaneous voltage value detected by the main voltage detection unit 21 and the instantaneous current value detected by the main current detection unit 22. The instantaneous power value of the power supplied from the main breaker 11 is calculated at a predetermined sampling interval.

  A plurality of branch breaker current detection units 24 exist corresponding to each branch breaker 12, and are configured from a current detection circuit that detects a current flowing through the branch breaker 12.

  The arithmetic device 25 is composed of an integrated circuit such as an ASIC, and calculates a current integrated value and the like, and includes a measurement value acquisition unit 251, an integration unit 252, and a transmission unit 253.

  The measurement value acquisition unit 251 sequentially acquires the instantaneous power value of the main breaker 11 calculated by the power calculation unit 23 at a predetermined sampling interval. Further, the measurement value acquisition unit 251 sequentially acquires the instantaneous voltage value of the main breaker 11 detected by the main voltage detection unit 21 via the power calculation unit 23 at a predetermined sampling interval. The measurement value acquisition unit 251 sequentially acquires the instantaneous current value detected by the branch breaker current detection unit 24 via the power calculation unit 23 at a predetermined sampling interval.

  The integrating unit 252 integrates the instantaneous current value of each branch breaker 12 acquired by the measurement value acquiring unit 251 and calculates the integrated current value at a predetermined sampling interval.

  The transmission unit 253 includes the instantaneous voltage value of the main breaker 11 detected by the main voltage detection unit 21, the instantaneous electric power value of the main breaker 11 acquired by the measurement value acquisition unit 251, and each branch calculated by the integration unit 252. The integrated current value of the breaker 12 is stored in one packet and transmitted to the control device 26 at a predetermined sampling interval via the communication line N1.

  In this embodiment, 2 seconds is adopted as the predetermined sampling interval, but this is an example, and other values such as 1 second, 3 seconds, 5 seconds, 10 seconds, 1 minute are adopted. Also good. Further, the transmission unit 253 uses the instantaneous power value and the identification information for identifying which branch breaker 12 the transmitted cumulative current value is from the main breaker 11 as the instantaneous power value to be transmitted. Associate with each accumulated current value.

  The communication line N1 is composed of, for example, an RS-485 communication cable. However, this is an example, and other communication cables such as RS-232C and RS-422 may be employed.

  The control device 26 is composed of an integrated circuit such as an ASIC, and is connected to the arithmetic device 25 via the communication line N1, and includes an electricity usage amount acquisition unit 261 (electricity usage amount acquisition unit), a determination unit 262 (determination unit), and notification. A control unit 263, a breaker information storage unit 264, and a combination information storage unit 265 (storage means) are provided.

  The electricity usage acquisition unit 261 subtracts the integrated current value of each branch breaker 12 transmitted one sampling interval before the integrated current value of each branch breaker 12 transmitted from the arithmetic unit 25 this time, and obtains the obtained value. Then, the instantaneous power value of each branch breaker 12 is calculated by multiplying the instantaneous voltage value of the main breaker 11 transmitted this time from the arithmetic unit 25, and this instantaneous power value is calculated as the amount of electricity used by each branch breaker 12.

  Here, the electricity usage amount acquisition unit 261 identifies which branch breaker 12 the received integrated current value is based on the identification information associated with the integrated current value transmitted from the arithmetic device 25, and the breaker information storage unit In accordance with the breaker information stored in the H.264, it is specified which of the electric devices 4 the received accumulated current value indicates. FIG. 3 is a diagram illustrating an example of breaker information stored in the breaker information storage unit 264. As shown in FIG. 3, the breaker information includes identification information of the branch breaker 12 and information indicating the electric device 4 associated with each identification information. In the case of FIG. 3, child room floor heating, child room lighting, children room air conditioner, corridor lighting, and living floor heating are associated with AE indicating identification information of the branch breaker 12, respectively.

  Therefore, for example, when the identification information associated with the received accumulated current value is A, the accumulated electricity value represents the accumulated current value of the child room floor heating. If the associated identification information is B, it is determined that this integrated current value represents the integrated current value of the child room lighting.

  The determination unit 262 identifies the usage state of each electrical device 4 based on the electrical usage amount acquired by the electrical usage amount acquisition unit 261, and the usage state of each electrical device 4 is estimated as wasted use of power. When it corresponds to a predetermined combination, it is determined that the usage state of the electrical device 4 related to the combination is useless.

  Here, the determination unit 262 identifies which electrical device 4 is turned on and which electrical device 4 is turned off from the electrical usage amount of each electrical device 4 acquired by the electrical usage amount acquisition unit 261. The use state of each electric device 4 is specified. For example, the determination unit 262 determines that the use state of the child room floor heating is off when the value of the amount of electricity used for the child room floor heating is off (for example, 0). When the usage state of the electric usage amount of the room floor heating is a value that can be determined to be on (for example, a constant value other than 0), it is determined that the usage state of the child room floor heating is on.

  Then, the determination unit 262 identifies the usage state of the electrical device 4 indicating whether each electrical device 4 is turned on or off, and the identified usage state of the electrical device 4 is stored in the combination information storage unit 265. It is determined whether or not the combination indicated by the combination information is applicable.

  FIG. 4 is a diagram illustrating an example of combination information stored in the combination information storage unit 265. As illustrated in FIG. 4, the combination information stores combinations of usage states of the electric devices 4 that are estimated to be using power wastefully. In the example of FIG. 4, when the child room floor heating is turned on and the child room lighting is turned off, it is estimated that power is wasted, the child room air conditioner is turned on, and the child room lighting is turned off. If power is estimated to be wasted, corridor lighting is turned on, and children's room lighting is turned on, it is estimated that power is wasted, living lighting is turned off, and the living floor When heating is turned on, the combination information is defined so that it is estimated that electric power is wasted. The combination information shown in FIG. 4 is an example, and other combinations may be included, and the content of the combination is not limited to that shown in FIG. The breaker information shown in FIG. 3 is also an example, and the number of branch breakers 12 and the type and number of electrical devices 4 are not limited to those shown in FIG.

  Therefore, for example, when the child room floor heating is turned on and the child room lighting is turned off, the determination unit 262 determines that the use state of the child room floor heating and the child room lighting is useless, and the child room air conditioner is turned on. When the child room lighting is turned off, it is determined that the use state of the child room air conditioner and the child room lighting is useless.

  Here, the determination unit 262 determines that the use state of the electric device 4 is useless when the use state of the electric device 4 continues for a certain time or more in a state corresponding to the combination indicated by the combination information. For example, when the use state of the electric device 4 continues for a certain time (for example, 5 minutes, 10 minutes, etc.) such that the child room floor heating is turned on and the child room lighting is turned off, the determination unit 262 The use state of the child room floor heating and the child room lighting is judged to be useless.

  When the determination unit 262 determines that the electrical device 4 is being used wastefully, the notification control unit 263 generates image data for notifying the user of this, and the monitor device 5 via the communication line N2. Send to.

  The breaker information storage unit 264 stores the breaker information as shown in FIG. The combination information storage unit 265 stores the combination information as shown in FIG.

  The primary branch breaker 27 is composed of, for example, a breaker that supplies electric power generated by the solar cell 3 to the electric device 4.

  The integration device 13 is composed of a communication device such as a modem, is connected to the control device 26 via the communication line N2, and is connected to the center server 7 via the network N3, and is generated by the notification control unit 263. Data and the like are transmitted to the center server 7 and the monitor device 8 shown in FIG.

  The net remote controller 14 is connected to the control device 26 via the communication line N2, and controls the electric device 4. Here, under the control of the control device 26, for example, the network remote controller 14 performs on / off control of the power supply of the electrical device 4. Note that a LAN cable is employed as the communication line N2.

  The electric device 4-1 includes electric devices according to the JEM-A standard such as the lighting device 41 and the air conditioner 42 shown in FIG. 1. The electric device 4-2 is configured by an electric device machine other than JEM-A such as the lighting devices 43 and 44 and the air conditioner 45 shown in FIG.

  The outlet 6 is connected to the branch breaker 12 via the power line L1, and is also connected to the electrical device 4 via the power line L1.

  The monitor device 5 is connected to the control device 26 via the communication line N2 and includes a touch panel and various operation buttons. The monitor device 5 is used wastefully transmitted from the control device 26 in accordance with image data transmitted from the control device 26. An image showing the electrical device 4 is displayed.

  FIG. 5 is a flowchart showing the operation of the electricity usage notification system. First, in step S1, the measurement value acquisition unit 251 acquires the instantaneous current value of each branch breaker 12 detected by the branch breaker current detection unit 24 at a predetermined sampling interval.

  Next, in step S2, the integrating unit 252 integrates the instantaneous current values acquired by the measured value acquiring unit 251, and calculates the integrated current value of each branch breaker 12 at every predetermined sampling interval. Next, in step S <b> 3, the transmission unit 253 transmits the integrated current value of each branch breaker 12 integrated by the integration unit 252 to the control device 26 at a predetermined sampling interval.

  Next, in step S4, the electricity usage amount acquisition unit 261 subtracts the accumulated current value of each branch breaker 12 received, for example, one sampling interval before, from the accumulated current value of each branch breaker 12 received this time. The amount of electricity used by each branch breaker 12 is calculated by multiplying the value by the instantaneous voltage value of the main breaker 11 received this time.

  Next, in step S <b> 5, the determination unit 262 identifies the usage state of the electrical device 4 connected to each branch breaker 12 from the electricity usage amount of each branch breaker 12 calculated in step S <b> 4.

  Next, in step S6, the determination unit 262 determines whether or not the combination of usage states of the specified electrical device 4 corresponds to the combination specified in the combination information, and if the combination is applicable (in step S6). YES), the notification control unit 263 generates image data for notifying the user of the electrical device 4 related to the combination, and transmits the image data to the monitor device 5. The monitor device 5 displays the received image data on the touch panel. (Step S7). Here, the monitor device 5 displays on the touch panel the electrical device 4 that is determined to be useless. On the other hand, if it is determined NO in step S6, the notification control unit 263 passes through the process of step S7 and ends the process.

  Thus, according to this electricity usage amount notification system, the electricity usage amount of each branch breaker 12 is acquired, the usage state of the electrical device 4 is specified from this electricity usage amount, and the usage state of the identified electrical device 4 is determined. When it corresponds to the combination estimated that the electric power is consumed wastefully, the monitor device 5 displays the electric device 4 related to the combination on the touch panel.

  Therefore, from the notification result, for example, the user is in an electric device in which the floor heating is turned on and the floor heating is used wastefully even though the room is supposed to be turned off and no person is present. 4 can be recognized, and the amount of electricity used can be saved by turning off floor heating.

  In addition, when the usage state of the electric device 4 is continued for a certain time (for example, 5 minutes, 10 minutes, etc.), the determination unit 262 determines that the usage state of the child room floor heating and the child room lighting is useless. When the use state of the device 4 temporarily corresponds to a combination that is estimated to be useless, the user of the electric device 4 related to the combination is not notified, so that wasteful use of power is ensured. After the occurrence, it can be notified to the user.

(Embodiment 2)
The electricity usage amount notification system according to the second embodiment is characterized in that the determination processing method of the determination unit 262 is different from that of the first embodiment. In the present embodiment, the same elements as those in the first embodiment are not described. The overall configuration diagram, block diagram, and flowchart of the present embodiment are the same as those in FIGS.

  When the number of times the usage state of the electrical device 4 corresponds to the combination indicated by the combination information exceeds a certain number of times within a certain time, the determination unit 262 illustrated in FIG. 2 determines the usage state of the electrical device 4 related to the combination. Judge that it is useless. For example, the usage state of the electric device 4 that the child room floor heating is turned on and the child room lighting is turned off is more than a certain number of times during a certain time (for example, 5 minutes, 10 minutes, 1 hour, 2 hours, etc.). When it occurs, the determination unit 262 determines that power is being wasted. Specifically, the case where the child room lighting is repeatedly turned on and off within a predetermined time in a state where the child room floor heating is turned on corresponds to this case. As the fixed number of times, a predetermined value such as 3, 5, or 10 times can be employed.

  The user may repeatedly turn the child room lighting device on and off in a short period of time for some reason with the child room floor heating turned on. In this case, every time the on / off operation is repeated, the monitoring device 5 repeatedly disturbs the user. Therefore, when the number of times that the usage state of the electrical device 4 corresponds to the combination indicated by the combination information exceeds a certain number of times within a certain time, a notification that is annoying to the user is provided by notifying the useless use. It is possible to notify the user after avoiding and surely using unnecessary power.

(Embodiment 3)
The electricity usage amount notification system according to the third embodiment is characterized in that the determination processing method of the determination unit 262 is different from the first and second embodiments. In the present embodiment, the same elements as those in the first and second embodiments are not described. The overall configuration diagram, block diagram, and flowchart of the present embodiment are the same as those in FIGS.

  The determination unit 262 illustrated in FIG. 2 corresponds to the combination in which the usage state of the electrical device 4 is indicated by the combination information, and the electrical usage amount of the electrical device 4 related to the combination exceeds a predetermined value. Then, it is determined that the usage state of the electric device 4 is useless.

  Specifically, when the determination unit 262 detects that the usage state of the electric device 4 corresponds to the combination indicated by the combination information, the electric usage amount of the electric device 4 related to the combination is accumulated for a certain period of time, and the result is obtained. When the amount of electricity used exceeds a predetermined value, it is determined that the usage state of the electric device 4 related to the combination is useless.

  For example, when determining that the child room floor heating is turned on and the child room lighting is turned off, the determination unit 262 integrates the electricity usage amount of the child room floor heating for a certain time, and the obtained electricity usage amount exceeds a predetermined value. The use state of the child room floor heating and the child room lighting is judged to be useless.

  Further, for example, when the determination unit 262 detects that the corridor lighting is on and the child room lighting is on, the sum of the integrated value of the electric usage amount of the corridor lighting and the integrated value of the electric usage amount of the child room illumination within a certain period of time. However, when it exceeds a predetermined value, it is determined that the use state of the hallway lighting and the child room lighting is useless.

  As described above, according to the electricity usage amount notification system according to the third embodiment, even if the usage state of the electrical device 4 temporarily corresponds to the combination defined by the combination information, the user is immediately notified of wasted use. If the amount of electricity used for a predetermined time of the electric device 4 associated with the combination exceeds a predetermined value, the user is informed that the state of use of the electric device 4 is useless. It is possible to notify the user of uselessness after it has been generated reliably, and to prevent unnecessary notification.

(Embodiment 4)
The electricity usage amount notification system according to the fourth embodiment excludes the combination of the usage states of the electrical device 4 that is the determination target from the determination target when the determination unit 262 determines that the electric power is used wastefully. It accepts a selection input from the user. In the present embodiment, the same elements as those in the first to third embodiments are not described. The overall configuration diagram, block diagram, and flowchart of the present embodiment are the same as those in FIGS.

  The monitor device 5 illustrated in FIG. 2 includes a touch panel, for example, and includes an operation unit 51 (selection unit) that receives an operation input from a user. When the determination unit 262 determines that the electrical device 4 is used wastefully, the operation unit 51 receives a selection input from the user for excluding the combination from the determination target.

  When the selection input is accepted by the operation unit 51, the monitor device 5 transmits a packet for notifying the fact to the control device 26 via the communication line N2. Receiving this packet, the control device 26 updates the combination information so that the combination excluded from the determination target by the user is deleted from the combination information.

  The determination unit 262 shown in FIG. 2 determines that the use state of the electrical device 4 is useless by using the determination method of the second embodiment and the determination method of the third embodiment together.

  FIG. 6 is a diagram illustrating an example of an image displayed on the monitor device 5 when notifying that the usage state of the electrical device 4 is useless. In the upper part of FIG. 6, “corridor lighting” and “children's room lighting” are displayed over two lines, and both the hallway lighting and the child's room lighting are turned on, and wasteful use of power occurs. It is reported that In the lower part of FIG. 6, a button labeled “hereinafter, this combination is not displayed” is displayed. When this button is pressed by the user, that is, when the operation unit 51 receives a selection input from the user for excluding the combination of turning on the hallway lighting and turning on the child room lighting from the determination target, the control device 26 deletes the combination of turning on hallway lighting and turning on child room lighting from the combination information. Thereby, thereafter, the determination unit 262 does not determine that the use state of the electric device 4 is useless even if the corridor lighting is turned on and the child room lighting is turned on.

  In the middle of the image shown in FIG. 6, buttons labeled “Turn off corridor lighting” and “Turn off children's room lighting” are displayed. When the “turn off corridor lighting” button is pressed, that is, when the operation unit 51 receives an input for turning off the corridor lighting, the control device 26 instructs the network remote controller 14 to turn off the corridor lighting. The network remote controller 14 turns off the corridor lighting. Also, when the “turn off children's room lighting” button is pressed, the control device 26 similarly turns off the child room lighting. 6 is a button for causing the monitor device 5 to display an initial image.

  FIG. 7 is a diagram illustrating another example of an image displayed on the monitor device 5 when notifying that the usage state of the electrical device 4 is useless. In the case of FIG. 7, “corridor lighting” and “kids room lighting” are displayed in the first line, and the corridor lighting and the child room lighting are on. It is reported that it is useless. In the second row, “living lighting” and “living floor heating” are displayed. The living lighting is turned off and the living floor heating is turned on even though there is no user in the living room. It is reported that the use state of the living floor heating is useless.

  In addition, a button labeled "Advanced Settings" is displayed to the right of the button labeled "Children's Room Lighting", and "Disabled" is displayed to the right of the button labeled "Detailed Settings". Button is displayed. Also, buttons labeled “detailed setting” and “invalid” are also displayed on the right side of the button labeled “living floor heating”.

  When the button labeled “invalid” on the first line is pressed by the user, the control device 26 deletes the combination of turning on the hallway lighting and turning on the child room lighting from the combination information. Thereby, the determination unit 262 does not determine that the use state of the hallway lighting and the child room lighting is useless even if the hallway lighting is turned on and the child room lighting is turned on thereafter.

  When the user presses the button marked “invalid” on the second line, the control device 26 deletes the combination of the living lighting off and the living floor heating on from the combination information. Thereby, thereafter, the determination unit 262 does not determine that the use state of the living lighting and the living floor heating is useless even if the living lighting is turned off and the living floor heating is turned on.

  FIG. 8 is a diagram showing an image displayed on the monitor device 5 when the button labeled “Detailed setting” on the second line in FIG. 7 is pressed. In this image, “12:00 to 14:00 6 times” is displayed as “time / number of times”. This is because, in the time zone from 12:00 to 14:00, when the lighting of the living room is turned off and the usage state of the electric device 4 in which the living room floor heating is turned on occurs six times, useless use occurs. Indicates that it will be judged. The user can change the time zone from 12:00 to 14:00 to an arbitrary time zone by operating the operation unit 51.

  In addition, “15 W” is displayed as “electric consumption”. This is because, in the state where the living lighting is turned off and the living floor heating is turned on, if the integrated value of the electricity usage of the living floor heating exceeds 15 W within a certain period, useless use has occurred. Indicates that it will be judged. Note that the user can change the value of 15 W to an arbitrary value by operating the operation unit 51.

  In FIG. 7, when the user presses the “detailed setting” button in the first row, an image for performing detailed settings related to the combination of hallway lighting and child room lighting is displayed as in FIG. 8. .

  As described above, according to the electricity usage amount notification system according to the fourth embodiment, even if the combination of the usage states of the electric devices 4 corresponds to uselessness in the default setting, it does not correspond to uselessness for the user. In some cases, it is possible to flexibly respond to user requests.

(Embodiment 5)
The electrical usage amount notification system according to the fifth embodiment controls the electrical device 4 so that the electrical usage amount of the electrical device 4 to be determined is reduced when it is determined that power is being wasted. It is characterized by. In the present embodiment, the description of the same elements as in the first to fourth embodiments will be omitted. The overall configuration diagram and flowchart of the present embodiment are the same as those in FIGS. FIG. 9 shows a block diagram of an electricity usage notification system according to the fifth embodiment. The difference from FIG. 2 is that the control device 26 includes a device control unit 266, and the electrical device 4 is configured only as an electrical device that conforms to the JEM-A standard.

  The combination information storage unit 265 stores combinations of usage states of the electrical devices 4 that are estimated to be using power wastefully, and reduces the amount of electricity used by the electrical devices 4 related to the combination. Control information for controlling the electric device 4 is stored as combination information.

  FIG. 10 is a diagram showing combination information according to the fifth embodiment. In the combination information shown in FIG. 10, the control information is associated with the child room floor heating that is on in the combination of the usage state of the electric device 4 in which the child room floor heating is on and the child room lighting is off. This control information is information for reducing the amount of electricity used for child room floor heating. Specifically, information such as turning off the child room floor heating that is turned on or operating the child room floor heating in the energy saving mode is included.

  In addition, since both the electric devices 4 are on for the combination in which the hallway lighting is on and the children's room lighting is on, the control information is associated with both the electric devices 4. The control information associated with the on-hall corridor lighting includes information such as turning off the corridor lighting or reducing the light intensity of the corridor lighting. The control information associated with the child room lighting includes the child room lighting. Information such as turning off the lighting or reducing the amount of light in the children's room is included.

  When the determination unit 262 determines that the usage state of the electrical device 4 is useless, the device control unit 266 controls the electrical device 4 to be determined according to control information defined by the combination information. For example, if the child room floor heating is turned on and the child room lighting is turned off, the device control unit 266 determines that the use state of both the electric devices 4 is useless when the determination unit 262 determines that the child room is turned on. The floor heating control information is transmitted to the network remote controller 14. Then, the net remote controller 14 controls the child room floor heating so that the amount of electricity used is reduced according to the received control information. Note that the determination unit 262 can determine whether power is wasted using the determination method described in any of Embodiments 1 to 4.

  As described above, according to the electricity usage amount notification system according to the fifth embodiment, when it is determined that the usage state of the electrical device 4 is useless, the electrical usage amount of the electrical device 4 that is the determination target is reduced. Thus, since the electric equipment 4 is controlled, energy saving can be achieved.

(Embodiment 6)
The electricity usage amount notification system according to the sixth embodiment notifies the user of the amount of power that has not been achieved for the current electricity bill target value, specifies the electrical device 4 to be saved, and determines the power saving time per day. It is characterized by notifying the user.

  In the present embodiment, the same elements as those in the first to fifth embodiments are not described. Further, the overall configuration diagram of the present embodiment is the same as FIG. FIG. 11 shows a block diagram of an electricity usage notification system according to Embodiment 6 of the present invention. The difference from FIG. 2 is that the control device 26 includes a calculation unit 267, an electric device specifying unit 268 (an example of an electric device specifying unit), and a power saving time calculating unit 269 (an example of a power saving time calculating unit). .

  As shown in Embodiment 1, the electric usage amount acquisition unit 261 acquires the instantaneous power value of the main breaker 11 transmitted by the transmission unit 253 at a predetermined sampling interval. In addition, as shown in the first embodiment, the electricity usage amount acquisition unit 261 calculates the instantaneous power value of each branch breaker 12 as the instantaneous power value of each electrical device 4.

  The calculation unit 267 uses the instantaneous power value of the main breaker 11 acquired by the electricity usage amount acquisition unit 261 to calculate the monthly power amount calculation process (of the monthly power amount calculation means) from the first day of this month to today. (Example). Here, the calculation unit 267 has a calendar function, and the calendar function may be used to specify the month and day. Moreover, the calculation part 267 should just calculate the electric energy from the first day of this month to today, for example by integrating | accumulating the instantaneous electric power value of the main breaker 11 from the first day of this month to today.

  In addition, the calculation unit 267 calculates the unachieved portion of the electricity bill target value based on a predetermined electricity bill target value for this month and the power amount from the first day of this month to today calculated by the monthly power amount calculation processing. An unachieved power amount calculation process (an example of an unachieved power amount calculation unit) is executed. Here, for example, the calculation unit 267 calculates the target amount of electricity for this month using a predetermined arithmetic expression from the target value of electricity bill for this month, and from this target amount of power to the first day of this month until today. It is only necessary to calculate the amount of unachieved power by reducing the amount of power. Moreover, a default value may be employ | adopted for an electricity bill target value, and the electricity bill target value which the user set using the operation part 51 may be employ | adopted.

  In addition, the calculation unit 267 calculates the unachieved power amount calculated by the unachieved power amount calculation process by the remaining days of the current month, which is the amount of power that can be used for one day. A target power amount calculation process (an example of target power amount calculation means) for calculating the power amount α is executed.

  In addition, the calculation unit 267 calculates an average power consumption calculation process (average power consumption calculation) for calculating the average power consumption of each electrical device 4 based on the instantaneous power value of each branch breaker 12 acquired by the electricity usage acquisition unit 261. An example of means) is executed. Here, the calculation unit 267 determines that the integrated value of the instantaneous power value of each branch breaker 12 acquired by the electricity usage acquisition unit 261 and each electrical device 4 are turned on from today to a predetermined number of days (for example, 5 days). The average power consumption of each electrical device 4 may be calculated by calculating the integrated value of the measured time and dividing the integrated value by the time of turning on.

  Further, the calculation unit 267 calculates the average on-time Ti per day for each electrical device 4 by dividing the integrated value of the time when each electrical device 4 was turned on by the predetermined number of days from today to a predetermined number of days ago. .

  The electric device specifying unit 268 specifies a power saving electric device that is a power saving target based on the average power consumption of each electric device 4 calculated by the average power consumption calculation process. Here, the electric device specifying unit 268 may specify a predetermined number of electric devices 4 as power-saving electric devices in order from the one with the highest average power consumption, for example. As the predetermined number, a default value may be employed, or a value input by the user using the operation unit 51 may be employed.

  The power saving time calculation unit 269 uses the target power amount per day calculated by the target power amount calculation process and the average power consumption of the power saving electric device calculated by the average power consumption calculation process. Calculate the power saving time per day.

  Here, the power saving time calculation unit 269 calculates, from the average on-time Ti per day of each electrical device 4 calculated by the calculation unit 267 and the average power consumption wi of each electrical device 4, for example, by calculating The amount of power consumption β per day of the electric device 4 is calculated.

β = w1 · T1 + w2 · T2 + ... + wi · Ti + ... + wn · Tn
However, i = 1 to n is a number for specifying each electric device 4.

  Further, the power saving time calculation unit 269 calculates the power saving power amount γ per day by subtracting the target power amount α per day calculated by the calculation unit 267 from the power consumption amount β per day. However, γ is γ = β−α (β−α ≧ 0) and γ = 0 (β−α <0).

  Then, the power saving time calculation unit 269 assumes that the average power consumption of each power saving electrical device is wi (i = 1 to m: m <n), and γ = t · (w1 + w2 +... + Wm) per day The power saving time t of each power saving electrical device is calculated. In this case, t adopts the same value in each power-saving electrical device.

  The notification control unit 263 causes the monitor device 5 to display an image for notifying the user of the unachieved power amount calculated by the unachieved power amount calculation process. In addition, the notification control unit 263 causes the monitor device 5 to display an image for notifying the user of the power saving time of each power saving electrical device calculated by the power saving time calculation unit 269.

  FIG. 12 is a flowchart showing the process of the electricity usage notification system according to the sixth embodiment. First, the calculation unit 267 calculates the amount of power from the first day of this month to today by integrating the instantaneous power values of the main breaker 11 from the first day of this month to today (step S11). Here, as today's electric energy, for example, an integrated value of instantaneous electric power values of the main breaker 11 from today's 0:00 to the present may be adopted.

  Next, the calculation unit 267 calculates the target amount of electricity for this month from the target value of electricity bill for this month, subtracts the amount of power calculated in step S11 from the target amount of electricity for this month, The amount is calculated (step S12).

  Next, the calculation unit 267 calculates the target power amount α per day by dividing the unachieved power amount calculated in step S12 by the remaining number of days in this month (step S13).

  Next, the calculation unit 267 calculates the average power consumption wi (where i = 1 to n) of each electrical device 4 from the instantaneous power value of each branch breaker 12 from today to a predetermined number of days ago (step S14). ).

  Next, the calculation unit 267 calculates an average on-time Ti per day for each electrical device 4 from today to a predetermined number of days ago (step S15).

  Next, the electric device specifying unit 268 specifies a predetermined number of electric devices 4 as power-saving electric devices in order from the one with the highest average power consumption (step S16).

  Next, the power saving time calculation unit 269 calculates 1 of all the electric devices 4 from the average on-time Ti per day of each electric device 4 calculated by the calculation unit 267 and the average power consumption wi of each electric device 4. The amount of power consumption β per day is calculated (step S17).

  Next, the power saving time calculation unit 269 calculates the power saving power amount γ per day from β-α (step S18).

  Next, the power saving time calculation unit 269 calculates the power saving time t per day of each power saving electrical device from the power saving power amount γ calculated in step S18 and the average power consumption wi of each power saving electrical device (step S19). ).

  Next, the calculation unit 267 displays on the monitor device 5 an image for notifying the unachieved power amount calculated in step S12 and the power saving time per day of each power saving electrical device calculated in step S16. (Step S20).

  FIGS. 13A and 13B are diagrams illustrating an example of an image displayed on the monitor device 5. Above this image, “Target electricity cost 10,000 yen” is displayed, and the target electricity cost for this month is displayed. Below that, “3600 kW until the achievement” is displayed, and it is displayed that the unachieved power amount of this month is 3600 kW. In FIG. 13, the unachieved amount of power is displayed in units of kw, which is a power value, for convenience.

  Below that, the power saving time of each power saving electrical device is displayed as a horizontal bar. In the example of FIG. 13, a living air conditioner, floor heating, children's room lighting, and bedroom lighting are specified as power-saving electrical devices. The power saving time of each power saving electrical device is displayed by the length of the horizontal bar.

  Note that the user can increase or decrease the power saving time of any power saving electrical device by operating the operation unit 51. In this case, the power saving time calculation unit 269 adjusts the power saving time of the remaining power saving electric devices so that the total amount of power saving amount γ per day of each power saving electric device becomes constant in conjunction with the increase or decrease of the power saving time. Increase or decrease. And the alerting | reporting control part 263 updates the image displayed on the monitor apparatus 5 with the power saving time of each power saving electrical equipment.

  In the case of FIG. 13B, the power saving time of the living air conditioner is increased, and in conjunction with this increase, the remaining power saving electric devices are set so that the total amount of power saving power γ of each power saving device becomes constant. It can be seen that the power saving time with floor heating, children's room lighting, and bedroom lighting is uniformly reduced.

  In order to realize this, the power saving time calculation unit 269 may obtain the power saving time of the remaining power saving electric devices by obtaining t2 ′ from γ = w1 · t1 ′ + (w2 + w3 + w4) · t2 ′. However, w1 to w4 indicate the average power consumption of the living air conditioner, floor heating, children's room, and bedroom lighting, t1 'indicates the power saving time after the living air conditioner is increased, and t2' is the remaining power saving electric equipment after the decrease. Indicates power saving time.

  Thus, according to the electricity usage amount notification system according to the present embodiment, it is possible to notify the user of the remaining power amount for setting the electricity bill for this month to the electricity bill target value. In addition, it is possible to suggest to the user how much power is saved for which electrical device per day and the current electricity bill can be set to the target electricity bill.

(Embodiment 7)
The electricity usage notification system according to the seventh embodiment is characterized in that the user selects an electrical device 4 that is a power saving candidate. In the present embodiment, the same elements as those in the first to sixth embodiments are not described. The overall configuration diagram and block diagram of the present embodiment are the same as those in FIGS.

  The operation unit 51 illustrated in FIG. 11 receives an operation input from a user for selecting a power-saving electrical device. In addition, the operation unit 51 receives a user operation input for designating a priority for specifying the length of the power saving time of each power saving electrical device.

  FIGS. 14A and 14B are diagrams illustrating an example of an image displayed on the monitor device 5 when setting power-saving electrical devices. When the “change” button shown in FIG. 14A is pressed by the user, the monitor device 5 displays the image shown in FIG. In FIG. 14B, the currently specified power-saving electrical device is displayed as a button in the “current selection” field. In this case, “living air conditioner”, “floor heating”, “children's room lighting”, and “bedroom lighting” are specified as power-saving electrical devices.

  Further, in FIG. 14B, a predetermined electrical device 4 that can be selected as a power saving electrical device is displayed in the “candidate” column. In this case, “Bedroom Air Conditioner”, “IH”, “Corridor Lighting”, “Living Light”, “Outside Light”, “Children Room Air Conditioner”, and “Japanese Room Lighting” are displayed as buttons.

  When the user presses a button on any of the electric devices displayed in the “candidate” column, the monitor device 5 selects the electric device related to the pressed button as “current selection”. Add to the column. Also, when the user presses one of the power saving electrical devices displayed in the “current selection” field, the monitor device 5 displays the power saving electrical device associated with the pressed button as “ Delete it from the "Current selection" field and add it to the "Candidate" field.

  In FIG. 14B, when the “rank” button is pressed by the user, the monitor device 5 displays the image shown in FIG. FIG. 15A is a diagram illustrating an example of an image displayed when priority is set for a power-saving electrical device. In the left column of FIG. 15A, power-saving electrical devices are displayed. In this case, “living air conditioner”, “floor heating”, “children's room lighting”, and “bedroom lighting” are set as power-saving electrical devices. And a user sets the priority of each power saving electric equipment by pushing the button of the power saving electric equipment displayed on the left column in order which makes a priority high.

  In the example of FIG. 15 (a), the buttons of the power saving electrical devices displayed in the left column are pressed in the order of “bedroom lighting”, “children's room lighting”, “living room air conditioner”, and “floor heating”. In the column, power-saving electrical devices are displayed from top to bottom in this order. In the right column, numbers 1 to 4 are assigned in descending order of priority with respect to each power-saving electrical device.

  When the “return” button shown in FIG. 15A is pressed, the power saving time calculation unit 269 of the control device 26 is selected by the user on the assumption that the user has selected the power saving electrical device and the priority. The power saving time of each power saving electrical device is calculated using the power saving electrical device and the priority, and the calculated power saving time is displayed on the monitor device 5.

  Here, the power saving time calculation unit 269 calculates the power saving time as follows, for example. In the following explanation, an example will be described in which three electrical devices 4 with priorities 1 to 3 are selected as power-saving electrical devices. Assuming that the power saving power amount per day is γ, the average power consumption of the three power saving electrical devices is w1, w2, w3, and the basic power saving time per day is t, the power saving time calculation unit 269 has γ = 3t · t is calculated from w1 + 2t · w2 + t · w3. The power saving time calculation unit 269 calculates the power saving time of the power saving electrical device with priority 1 as 3t, the power saving time of the power saving electrical device with priority 2 as 2t, and the power saving time of the power saving electrical device with priority 3 as t. .

  In this case, the monitor device 5 displays an image shown in FIG. FIG. 15B is a diagram illustrating an example of an image in which the power saving time of each power saving electrical device calculated with the priority is displayed. In FIG. 15B, the number of power saving electrical devices is four.

  In this case, since the priority of the power saving time of bedroom lighting, children's room lighting, living air conditioner, and floor heating is 1 to 4, respectively, it can be seen that the power saving time is displayed in this order.

  As described above, according to the electricity usage notification system according to the seventh embodiment, the user can select the power-saving electrical device and set the priority for the power-saving electrical device.

  In the seventh embodiment, the priority may be set by allowing the user to numerically input the priority.

1 shows an overall configuration diagram of an electricity usage notification system according to first to fifth embodiments of the present invention. FIG. The block diagram of the electricity usage alert system by Embodiment 1-4 of this invention is shown. It is the figure which showed an example of the breaker information. It is the figure which showed an example of the combination information. It is a flowchart which shows operation | movement of the electricity usage alert system by Embodiment 1-5 of this invention. It is the figure which showed an example of the image displayed on a monitor apparatus when alert | reporting that the use condition of an electric equipment is useless. It is the figure which showed another example of the image displayed on a monitor apparatus when alert | reporting that the use condition of an electric equipment is useless. It is the figure which showed the image which a monitor apparatus displays. The block diagram of the electricity usage alerting | reporting system by Embodiment 5 of this invention is shown. It is the figure which showed the combination information by Embodiment 5. The block diagram of the electric usage-amount notification system by Embodiment 6 of this invention is shown. 10 is a flowchart showing processing of an electricity usage notification system according to Embodiment 6. (A), (b) is the figure which showed an example of the image displayed by a monitor apparatus. (A), (b) is the figure which showed an example of the image displayed on a monitor apparatus, when setting a power saving electrical equipment. (A) is the figure which showed an example of the image displayed when setting a priority to a power saving electrical equipment, (b) is the power saving time of each power saving electrical equipment calculated in consideration of the priority. It is the figure which showed an example of the displayed image.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Distribution board 2 Energy management unit 3 Solar cell 4 Electric equipment 5 Monitor apparatus 6 Outlet 7 Center server 8 Monitor apparatus 11 Main breaker 12 Branch breaker 13 Integrated apparatus 14 Net remote control 21 Main voltage detection part 22 Main current detection part 23 Power calculation Unit 24 branch breaker current detection unit 25 arithmetic unit 26 control unit 27 primary branch breaker 51 operation unit 251 measurement value acquisition unit 252 integration unit 253 transmission unit 261 electricity usage acquisition unit 262 determination unit 263 notification control unit 264 breaker information storage unit 265 Combination information storage unit 266 Device control unit 267 Calculation unit 268 Electric device identification unit 269 Power saving time calculation unit

Claims (10)

Multiple branch breakers,
Obtaining means for obtaining the electricity usage of each branch breaker;
Storage means for storing a combination of usage states of electrical equipment presumed to be wastefully using power;
Based on the electricity usage amount of each branch breaker acquired by the acquisition means, the usage state of the electrical device is specified, and when the usage state corresponds to the combination, the usage state of the electrical device related to the combination is useless. A determination means for determining that there is,
An informing means for informing a user of an electrical device that is determined to be useless by the judging means;
The determining means determines that the usage state of the electrical device related to the combination is useless when the number of times the usage state of the electrical device corresponds to the combination exceeds a predetermined number of times within a predetermined time. Electricity usage notification system.   2. The electric device according to claim 1, wherein the determination unit determines that the use state of the electric device related to the combination is useless when the use state of the electric device corresponds to the combination for a predetermined time or more. Usage notification system. When the usage state of the electrical device corresponds to the combination and the electrical usage amount of the electrical device related to the combination exceeds a predetermined value within a predetermined time, the determination unit uses the electrical device related to the combination. 3. The electricity usage amount notification system according to claim 1, wherein the state is determined to be useless. A selection for accepting a selection input from a user for excluding a combination of usage states of the electric device that is a determination target from the determination target when the determination unit determines that the electric device is used wastefully electricity consumption alarm system according to any one of claims 1 to 3, characterized by further comprising means. The storage means stores a combination of usage states of the electrical equipment that is presumed to use power wastefully, and controls the electrical equipment so as to reduce the electrical usage of the electrical equipment related to the combination. Memorize control information,
The electric usage amount notification according to any one of claims 1 to 4 , further comprising device control means for controlling, according to the control information, an electric device whose use state is determined to be useless by the determining means. system. The acquisition means acquires the electricity usage of the main breaker,
Based on the electricity usage of the main breaker acquired by the acquisition means, monthly power amount calculation means for calculating the power amount from the first day of this month to today,
An unachieved power amount calculation means for calculating an unachieved power amount of the electricity bill target value based on a predetermined electricity bill target value for this month and the power amount calculated by the monthly power amount calculation means. And further comprising
The notification means, electricity consumption alarm system according to any one of claims 1 to 5, characterized in that to inform the power of unfulfilled amount calculated by the unattained power amount calculating means. The target power amount calculating means for calculating the target power amount per day that can be used for one day by dividing the unachieved power amount calculated by the unachieved power amount calculating means by the remaining days of the current month. When,
Based on the electricity usage of each branch breaker acquired by the acquisition means, average power consumption calculation means for calculating the average power consumption of each electrical device;
Based on the average power consumption of each electrical device calculated by the average power consumption calculating means, electrical device specifying means for specifying a power saving electrical device to be a power saving target,
Based on the target power amount per day calculated by the target power amount calculating means and the average power consumption of the power saving electric device calculated by the average power consumption calculating means, the power saving electric device per day A power saving time calculating means for calculating the power saving time;
7. The electricity usage amount notification system according to claim 6 , wherein the notification unit notifies the power saving time calculated by the power saving time calculation unit. An operation means for receiving an operation input from a user;
The power saving time calculation means, when an operation input for increasing / decreasing a power saving time per day for any one of the power saving electric devices among the power saving electric devices is received by the operation means, in conjunction time increase or decrease, so that the sum of the power-saving electric energy per day for each power saving electrical equipment is constant, according to claim 7, wherein increasing or decreasing the power saving time remaining power saving electrical equipment Electricity usage notification system. The electric device specifying means, according to a plurality of operation input by the user for selecting the power saving electrical equipment from the electrical device accepted by the operation means, according to claim 8, wherein the identifying a power saving electrical equipment Electricity usage notification system. The operation means accepts an operation input for designating a priority for prescribing a length of power saving time of each power saving electric device,
10. The electricity usage amount notification system according to claim 9, wherein the power saving time calculation means calculates a power saving time per day of the power saving electrical device by further using the priority.

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