JP2012170260A - Power management device and power management system using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power management device which reduces a user's troublesomeness caused by repeating a same notification in a short period, and a power management system using the same.SOLUTION: A flag management unit 6 stores flag status which indicates whether to permit a notification operation associated with power utilization. A notification determination unit 3a compares consumed power information acquired from a power supply by a power utilization information acquisition unit 2 with notification criterion set in a criterion management part 5. For example, when the consumed power from the power supply falls below a prescribed determination value, the notification determination unit 3a retrieves the flag stored in the flag management unit 6. If the flag is OFF, a display device 40 performs the prescribed notification operation. If the flag is ON, a display device 40 does not perform the prescribed notification operation. A flag determination unit 3b resets the flag status stored in the flag management unit 6 to OFF when the consumed power from the power supply exceeds a prescribed reset value. After resetting the flag status, if the notification operation is performed at least once, the flag status is changed to ON.

Description

  The present invention relates to a power management apparatus that manages a power usage situation and notifies a user of the usage situation, and a power management system using the power management apparatus.

  Conventionally installed in homes, receives abnormal information from meters and various sensors that perform safety monitoring of energy supply such as power, gas, and water, and receives information such as control information from devices installed in the home Then, the information terminal device which displays the received information is proposed (for example, refer patent document 1).

  In the information terminal device described in the above-mentioned patent document, the priority is set in advance according to the content of the acquired information, the LED is turned on with a notification pattern according to the priority, and the notification operation of the received information is performed. I was going.

JP 2004-23106 A

  In the above-described information terminal device, when an event occurs, display is performed according to the event, and the contents of the event that has occurred are visually displayed to notify the user. Here, when the same event repeatedly occurs in a short time, a display screen for notifying the contents of the event is repeatedly displayed.

  Conventionally, there has been proposed a power management device that monitors the amount of power used by the load in the house and outputs a message prompting the user to save power. For example, when the amount of power used falls below a predetermined determination value, The display screen such as “No more power purchase zero” was displayed for a certain period of time. Here, as shown in FIG. 7, when the amount of power used changes within a short period of time before and after the determination value (for example, 500 W), the above display screen is displayed every time the power consumption falls below the determination value (time t21, t22, t23). There is a problem that the user feels annoyed.

  The present invention has been made in view of the above problems, and an object of the present invention is to use a power management apparatus that reduces the annoyance felt by the user by repeating the same content notification in a short period of time and the same. It is to provide a power management system.

  The power management apparatus of the present invention includes a power usage information acquisition unit, a flag management unit, a determination condition management unit, a notification determination unit, a flag determination unit, and an output unit. The power usage information acquisition unit acquires usage information related to the power usage status. The flag management unit stores the state of the flag set to the first state when the notification operation of the notification content related to power use is permitted, and the second state when the notification operation of the notification content is not permitted. The determination condition management unit manages notification determination conditions used for determining whether to notify the notification contents and flag reset conditions. When the notification determination condition is established by comparing the usage information and the notification determination condition, the notification determination unit outputs a notification instruction of the notification content if the state of the flag stored in the flag management unit is the first state, If the flag state is the second state, the notification instruction for the notification content is not output. When the reset condition is satisfied, the flag determination unit sets the flag state stored in the flag storage to the first state. When the notification content is notified after the reset, the flag determination unit sets the flag state stored in the flag storage to the second state. To do. When the notification command is output from the notification determination unit, the output unit outputs the notification content to the notification device.

  In this power management apparatus, the reset condition is a condition that either the power consumption or the power consumption used from the power supply exceeds the reset value set corresponding to the notification content in the direction opposite to the notification determination condition. It is also preferable that there is.

  In this power management apparatus, the power usage information acquisition unit stores the acquired usage information in a time series in the management table, and determines a reset value determined based on a change tendency of the usage information with reference to the management table It is also preferable to provide a reset condition setting unit that is set in the condition management unit.

  In this power management device, the reset condition is a condition that the current time has reached the reset deadline set corresponding to the notification content, and the flag is set to the notification state after the flag is set to the first state. It is also preferable that the condition is at least one of the conditions that the reset period has elapsed.

  The power management system according to the present invention includes a notification device that notifies notification content related to the power usage status, and a power management device that outputs notification data of the notification content to the notification device and causes the notification device to perform a notification operation. The The power management apparatus includes a power usage information acquisition unit, a flag management unit, a determination condition management unit, a flag determination unit, and an output unit. The power usage information acquisition unit acquires usage information related to the power usage status. The flag management unit stores the state of the flag set to the first state when the notification operation of the notification content related to power use is permitted, and the second state when the notification operation of the notification content is not permitted. The determination condition management unit manages notification determination conditions used for determining whether to notify the notification contents and flag reset conditions. When the notification determination condition is established by comparing the usage information and the notification determination condition, the notification determination unit outputs a notification instruction of the notification content if the state of the flag stored in the flag management unit is the first state, If the flag state is the second state, the notification instruction for the notification content is not output. When the reset condition is satisfied, the flag determination unit sets the flag state stored in the flag storage to the first state. When the notification content is notified after the reset, the flag determination unit sets the flag state stored in the flag storage to the second state. To do. When the notification command is output from the notification determination unit, the output unit outputs the notification content to the notification device.

  ADVANTAGE OF THE INVENTION According to this invention, the power management apparatus which reduced the annoyance which a user feels by repeating the display of the same content in a short time can be provided.

  Moreover, by using this power management apparatus, it is possible to provide a power management system that reduces the annoyance felt by the user by repeating the display of the same content in a short period of time.

It is a block diagram which shows schematic structure of the power management apparatus of this embodiment. It is a system configuration figure of a power distribution system using the same as the above. It is a flowchart explaining the alerting | reporting operation | movement same as the above. It is a timing chart explaining an alerting | reporting operation | movement same as the above, (a) shows power consumption, (b) shows the state of a flag. It is a schematic block diagram which shows the other form same as the above. It is a timing chart explaining the alerting | reporting operation | movement same as the above. It is a timing chart explaining the alerting | reporting operation | movement of a prior art example.

  The power management apparatus of this embodiment manages power consumption in a power consumer such as a house, and is used in a power management system as shown in FIG.

  In this power management system, an AC power distribution system 10 that supplies AC power to a home AC load and a DC power distribution system 20 that supplies DC power to a home DC load are provided.

  The AC power distribution system 10 includes an AC distribution board 11 to which AC power is supplied from a commercial AC power supply AC. The AC distribution board 11 accommodates a main circuit breaker 12 to which the power line L1 from the commercial AC power source AC is connected to the primary side, and a plurality of branch breakers 13 connected to the secondary side of the main circuit breaker 12. Each branch circuit L2 branched by the branch breaker 13 is connected to an AC load 14 that operates by receiving supply of AC power.

  In this power management system, a solar battery 30 and a storage battery 31 for storing surplus power generated by the solar battery 30 are provided. The power conditioner 32 converts DC power supplied from the solar battery 30 or the storage battery 31 into a DC voltage having a predetermined voltage value, and supplies the DC voltage to the DC distribution system 20. The power conditioner 32 converts the power generated by the solar battery 30 into AC power having substantially the same voltage value and frequency as the commercial power supply system, and supplies the AC power to the AC power distribution system 10 via the interconnection breaker 33. The interconnection breaker 33 is used to link or disconnect the distributed power source composed of the solar cell 30 and the power conditioner 32 to the commercial power system. The power conditioner 32 also has a function of converting AC power supplied from the AC power distribution system 10 into DC and supplying it to the DC power distribution system 20.

  On the other hand, the DC distribution system 20 includes a DC distribution board 21 to which DC power is supplied from a power conditioner 32. A plurality of DC breakers (not shown) are accommodated in the DC distribution board 21 and DC devices operating with DC are connected to the DC wiring L3 branched by the DC breaker. In addition, as a DC device, an operation switch 22 for operating a load (for example, an illumination load 24 that is lit by DC power), a relay unit 23 that turns on or off the illumination load 24 according to the operation of the operation switch 22, There are sensors 25 for crime prevention and disaster prevention. These DC devices transmit and receive signals to each other by performing low-speed power line carrier communication via the DC wiring L3.

  The power management apparatus 1 obtains information about power consumption (that is, purchased power from the commercial power system) supplied from the commercial power system and consumed by the load in the house from the AC distribution board 11, and a solar cell. The power generation amount of 30 and the storage amount of the storage battery 31 are acquired from the power conditioner 32. Thus, the power management apparatus 1 acquires the usage information related to the power usage status and causes the display device 40 to display the notification content related to the power usage. FIG. 1 is a block diagram illustrating a schematic configuration of the power management apparatus 1. The power management apparatus 1 includes a power usage information acquisition unit 2, a determination unit 3, a display data output unit 4, a determination condition management unit 5, A flag management unit 6 and a timer 7 are provided as main components.

  The power usage information acquisition unit 2 takes in usage information related to the usage status of power from the power measurement unit 11a provided in the AC distribution board 11 or the DC distribution board 21 and stores the acquired usage information in a memory for a certain period of time. Let In the present embodiment, the power usage information acquisition unit 2 acquires the measured value of power consumption from the power measurement unit 11 a and also generates the power generation amount of the solar cell 30 and the storage battery 31 from the power conditioner 32 via the DC distribution board 21. The remaining amount of electricity is taken in and the usage information that has been taken in is managed. The communication between the power usage information acquisition unit 2 and the power measurement unit 11a and the communication between the power usage information acquisition unit 2 and the DC distribution board 21 may be wired or wireless, and communication is performed by a conventionally known communication method. Done.

  The determination unit 3 includes a notification determination unit 3a and a flag determination unit 3b.

  The notification determination unit 3a compares the usage information acquired by the power usage information acquisition unit 2 with the notification determination condition set in the determination condition management unit 5, and determines whether or not the notification determination condition is satisfied. . If the notification determination condition is satisfied, the notification determination unit 3a reads the flag state from the flag management unit 6 and determines whether the notification operation is possible. When the state value of the flag is OFF (first state: notification permission), the notification determination unit 3a outputs a notification command to the display data output unit 4, and causes the display device 40 to display the notification content related to the use of power. On the other hand, when the state value of the flag is ON (second state: notification prohibited), the notification determination unit 3a does not output a notification command to the display data output unit 4, and the notification content even if the notification determination condition is satisfied. Is not displayed.

  The flag determination unit 3b rewrites the flag value stored in the flag management unit 6 described later. When there are a plurality of notification contents, a flag indicating whether or not the notification operation is permitted is provided for each notification content, and the flag management unit 6 stores the state of each flag. The flag determination unit 3b determines whether a reset condition (described later) set in the determination condition management unit 5 is satisfied. If the reset condition is satisfied, the flag stored in the flag management unit 6 is reset, and the flag Set the status to OFF. In addition, when the notification content corresponding to the flag is notified even once after the flag reset, the flag determination unit 3b sets the flag state stored in the flag management unit 6 to ON.

  When a notification command is input from the notification determination unit 3a, the display data output unit 4 outputs display data of the corresponding notification content to the display device 40, and causes the display device 40 to display the notification content for a certain period of time. In the display device 40, the display of the notification content is stopped when a certain period of time has elapsed after the notification content is displayed. However, a user who has viewed the display of the notification content uses the operation means included in the display device 40 to perform a predetermined confirmation. When the operation is performed, the display of the notification content may be stopped. As the display device 40, for example, an information display terminal 41 installed on a wall surface in a house or a television 42 having a network communication function is used. The information display terminal 41 is connected to the power management apparatus 1 via a LAN (Local Area Network) constructed for facility equipment in a house. The television 42 is connected to a LAN constructed in the house for connecting devices such as computers and printers used by the user, and is connected to the power management apparatus 1 via the router 45. Here, communication between the display data output unit 4 and the display device 40 (such as the information display terminal 41 and the television 42) may be wired or wireless, and communication is performed by a conventionally known communication method.

  The determination condition management unit 5 has a notification determination condition used for determining whether or not to notify the notification content related to power use in the home and a flag reset condition indicating whether or not notification of the notification content is permitted. Is set. There are a plurality of types of notification contents, and the determination condition management unit 5 is set with a notification determination condition corresponding to each notification content and a flag reset condition corresponding to each notification content. Here, the notification determination condition includes a determination value to be compared with a measurement value (for example, power consumption from a power supply), and a determination direction indicating a direction in which the measurement value exceeds the determination value (a falling direction in which the measurement value is lower than the determination value) Or a rising direction in which the measured value exceeds the determination value). For example, when the notification determination condition of the notification content regarding the power purchase amount from the power supply is set as determination value = 500 W and determination direction = falling direction, the notification determination unit 3a determines the power consumption (the amount of power purchased from the power supply). When the measured value is less than 500 W, it is determined that the notification determination condition is satisfied. The flag reset condition includes a condition that the measured value exceeds a predetermined reset value in the direction opposite to the determination direction, and a condition that the current time measured by the timer 7 reaches a predetermined reset deadline. The reset condition is also set in the determination condition management unit 5. Table 1 below shows an example of determination values set in the determination condition management unit 5, and determination values, determination directions, reset values, and reset deadlines are set for a plurality of types of notification contents. Note that the notification content shown in Table 1 below is an example, and the notification content, the notification determination condition, and the reset condition are not limited to those described in Table 1, and can be appropriately changed according to the intended use. In Table 1 below, the time is set as the reset deadline, but the reset deadline may be set as a day or a date.

  The flag management unit 6 manages the state of a flag indicating whether or not display is permitted for each of a plurality of types of notification contents. For example, the flag management unit 6 sets the flag state corresponding to the notification content to OFF when permitting display for a certain notification content, and does not permit display for a certain notification content (when display is prohibited). The state of the flag corresponding to the notification content is set to ON. Further, when the flag corresponding to a certain notification content is set to ON (when display is prohibited), the flag management unit 6 sets the flag when the reset condition set in the determination condition management unit 5 is satisfied. Reset the state to OFF. Here, as the reset condition, the usage information acquired by the power usage information acquisition unit 2 (for example, the measured value of power consumption) exceeds the reset value in the direction opposite to the determination direction, and the current time reaches the reset deadline. There is a case. Table 2 below shows the state of the flag managed by the flag management unit 6, and the state of the flag is set for each notification content.

  Next, the operation of the power management apparatus 1 will be described based on the flowchart of FIG. In the following, when the measured value (instantaneous value) of the power consumption used from the power source falls below a determination value (for example, 500 W), the notification content (hereinafter referred to as notification content M1) is “A little more power is zero”. Will be described by taking as an example the case of displaying on the display device 40. In the determination condition management unit 5, the determination value is set to 500 W, the determination direction is the falling direction, the reset value is 3000 W, and the reset deadline is set to 0:00 every day for the notification content M1 that “the power purchase is almost zero”. ing.

  When power supplied from the commercial AC power supply AC is consumed by the load in the house, this power consumption is measured by the power measuring unit 11a. The power usage information acquisition unit 2 acquires and acquires information related to power usage (measured power consumption, power generation amount of the solar battery 30, remaining power storage amount of the storage battery 31, etc.) from the power measurement unit 11a at predetermined time intervals. The stored information is stored in the memory (S1 in FIG. 3). When the measured value (instantaneous value) of power consumption is acquired by the power usage information acquisition unit 2, the flag management unit 6 first determines whether or not a flag reset condition is satisfied (S2). Here, there are two reset conditions for the flag corresponding to the notification content M1: the instantaneous value of power consumption exceeds the reset value (= 3000 W), or the current time is 0:00. Therefore, the flag management unit 6 determines whether or not the instantaneous value of power consumption exceeds the reset value (3000 W) and determines whether or not the current time has reached 0:00. If at least one of the reset conditions is satisfied (Yes in S2), the flag management unit 6 resets the value of the flag and turns off the flag (S3).

  On the other hand, if the flag reset condition is not satisfied (No in S2), the notification determination unit 3a compares the instantaneous value of the power consumption with the determination value (S4). Here, if the instantaneous value of the power consumption is equal to or greater than the determination value (No in S4), the notification determination condition for the notification content M1 is not established, so the power management apparatus 1 returns to the processing of S1 and performs the above processing. repeat. If the instantaneous value of power consumption is less than the determination value, that is, if the instantaneous value of power consumption is below the determination value (Yes in S4), the notification determination unit 3a determines that the notification determination condition of the notification content M1 is satisfied. Then, the notification determination unit 3a reads the flag value corresponding to the notification content from the flag management unit 6 and determines whether or not the flag is OFF (S5). If the flag state is OFF (Yes in S5), the notification determination unit 3a outputs a notification command to the display data output unit 4. When the notification command is input from the notification determination unit 3a, the display data output unit 4 outputs the display data of the notification content M1 to the display device 40, and displays the notification content M1 on the display device 40 (S6). Thereafter, in the power management apparatus 1, the flag management unit 6 sets the flag corresponding to the notification content M1 to ON (S7), prohibits the display of the notification content M1, and then returns to the processing of S1 to perform the above processing. repeat. If it is determined in S5 that the flag is ON (No in S5), the power management apparatus 1 returns to the process in S1 and repeats the above process. The present embodiment is a polling type that determines whether to notify the notification content every time a certain time elapses. Whether or not to notify the notification content with the occurrence of a preset event as a trigger is determined. It may be an event driven type that performs the above determination.

  FIG. 4 is a timing chart corresponding to the display operation described above. From time t0 to time t1, since the flag corresponding to the notification content M1 has been reset last time, the notification content M1 has not been displayed yet. The state of is OFF. The power management apparatus 1 performs the determination operation according to the flowchart of FIG. 3 described above. When the power consumption falls below the determination value of 500 W at time t1, the notification determination unit 3a determines that the notification determination condition of the notification content M1 is satisfied. to decide. At this time, the notification determination unit 3a determines whether or not the flag value is OFF. Since the flag value is OFF, the notification determination unit 3a outputs a notification command to the display data output unit 4 to display the display device 40. Display the notification content M1. Since the notification determination unit 3a outputs a notification command to the display data output unit 4, the flag management unit 6 sets the flag value to ON and prohibits the notification operation of the notification content M1. After that, after the power consumption once exceeds the determination value, the power consumption falls below the determination value at time t2, but the flag is set to ON, so the notification determination unit 3a notifies the display data output unit 4 of the notification command. Is not output. When the power consumption due to the load in the home increases and the power consumption exceeds the reset value at time t3, the flag management unit 6 determines that the reset condition is satisfied, resets the flag value, and changes the flag state. Turn off and allow the notification operation of the notification content M1. After that, when the instantaneous value of power consumption falls below the determination value at time t4, the notification determination unit 3a determines that the notification determination condition is satisfied, and the flag value is also OFF, so a notification command is issued to the display data output unit 4. The notification content M1 is displayed on the display device 40.

  As described above, in this embodiment, for each of a plurality of types of notification contents, a flag indicating whether or not display is permitted is provided, and once the notification contents are displayed, the state of the corresponding flag is turned ON. Set to prohibit display. When the flag is set to ON, the flag value remains OFF until the measured value exceeds the reset value in the direction opposite to the determination direction or the current time reaches the reset deadline, and the notification content is displayed. Is prohibited. Therefore, once a certain notification content is displayed, the same notification content is repeatedly displayed even if the notification determination condition is satisfied until the measured value exceeds the reset value in the direction opposite to the determination direction or the reset deadline comes. The user never feels bothered. In addition, if the same notification content is repeatedly notified in a short time, the user may get used to the notification content. However, in this embodiment, the same notification content is not repeated in a short period of time. It is possible to prevent the degree of appeal given to the user from being reduced.

  Incidentally, as shown in FIG. 5, a determination condition setting unit 8 that automatically determines a reset condition and sets it in the determination condition management unit 5 may be added to the power management apparatus 1 described above.

  The power usage information acquisition unit 2 stores the acquired usage information in the management table in time series. Table 3 below is an example of the management table. For example, the average instantaneous power of each day is obtained for four branch circuits AC1, AC2, AC3, and AC4 and stored in the management table. The power usage information acquisition unit 2 measures, for example, power consumption (instantaneous power) every hour for each branch circuit, and obtains an average value of measurement results for 24 hours, thereby calculating the average instantaneous power for each day. Seeking.

  The determination condition setting unit 8 refers to the management table of the power usage information acquisition unit 2, determines an appropriate reset value for each branch circuit for each notification content, and sets it in the determination condition management unit 5. In the determination condition setting unit 8, a parameter P1 (for example, 500 W) used for determining a reset value is set in advance. The determination condition setting unit 8 reads the average instantaneous power P0 of the previous day of each branch circuit from the management table at a predetermined time (for example, 0:00) every day, and adds the parameter P1 to the average instantaneous power P0 of each branch circuit. Thus, the reset value of each branch circuit is determined. For example, when determining the reset value of the branch circuit AC1 on September 2, 2010, the determination condition setting unit 8 reads the average instantaneous power P0 (= 50 W) of the previous day (September 1, 2010) from the management table, A value (50 + 500 = 550 W) obtained by adding the parameter P1 to the average instantaneous power P0 of the previous day is determined as the reset value of the day. Then, the determination condition setting unit 8 sets the reset value (= 550 W) determined by the above-described calculation in the determination condition management unit 5, and based on the past power usage information stored in the management table, The reset value can be set to the optimum value according to the usage status of the.

  The determination condition setting unit 8 adds a parameter to the average instantaneous power of the previous day read from the management table to obtain a reset value. However, the determination condition setting unit 8 is not limited to the addition, and includes past power usage information stored in the management table. The reset value may be determined by four arithmetic operations with parameters. For example, the reset value may be obtained by multiplying the average instantaneous power of the previous day by a parameter, or by subtracting the average instantaneous power of the previous day from a predetermined parameter, or by dividing the predetermined parameter by the average instantaneous power of the previous day. The value may be determined. Further, the determination condition setting unit 8 may determine the reset condition by reading the average instantaneous power for a predetermined period from the management table and increasing or decreasing the reset value according to the change tendency of the average instantaneous power.

  By the way, the power used in the home is power that cannot be reduced by the user, such as standby power and power used in essential daily activities (for example, power consumption of the refrigerator) (hereinafter, this power is referred to as always-used power). It is included. Therefore, the power obtained by subtracting the always-used power from the power consumed from the power source becomes the power that can be reduced by the user's reduction efforts (hereinafter, this power is referred to as “reducible power”). Here, when the total power consumption is compared with the judgment value and the power consumption falls below the judgment value, the notification content “No more power purchase is short” is output. Therefore, no matter how much the user makes an effort, the purchased power cannot be made zero. Therefore, it is preferable to compare the amount of power that can be taken by the user (the above-described power that can be reduced) and the determination value corresponding to the notification content. The notification determination condition for the notification content and the flag reset condition are It is preferable to set.

  As described above, the power usage information acquisition unit 2 stores power consumption information used from the power source in the management table. Table 4 below is an example of the management table, and the total power consumption is obtained for each branch circuit. Here, the average instantaneous power of each day is obtained by measuring the power consumption (instantaneous power) every hour and calculating the average of the power consumption (instantaneous value) for 24 hours. The power usage information acquisition unit 2 determines that the power that is regularly used in each branch circuit is the standby power and the power consumption of the load that is regularly used, and this portion of power is always used power, The daily power usage for each day is stored in a management table.

  The determination condition setting unit 8 refers to the management table of the power usage information acquisition unit 2 and determines notification determination conditions and reset conditions based on past power usage information. The notification determination condition and the reset condition are determined based on the power excluding the used power. For example, when determining the notification determination condition and the reset condition for the branch circuit AC1 on September 2, 2010, the determination condition setting unit 8 reads the power usage information of the previous day (September 1) from the management table. Then, the determination condition setting unit 8 obtains the reducible power by subtracting the constant power consumption from the total power consumption, and the total power consumption is 50 W and the constant power consumption is 5 W. Therefore, the reducible power is 45 W. Desired. The determination condition setting unit 8 determines, based on the reducible power thus obtained (for example, 45 W), a determination value for determining whether to perform a notification operation or a reset for determining whether to reset a flag. Determine the value. FIG. 6 shows the power consumption of the branch circuit AC1, and since the overall average power consumption is 50 W and the constant power consumption is 5 W, the determination value and the reset value used for notification determination are determined based on the difference of 45 W. . Therefore, since the determination value and the reset value can be set for the amount of power that can be reduced by the user's reduction efforts (reducible power), it is possible to achieve the target presented on the display device 40 by the user's countermeasures, Users can tackle countermeasures with motivation.

  In this embodiment, the flag reset condition includes a condition that the measured value of power consumption exceeds a predetermined reset value in the direction opposite to the determination direction, and a condition that the current time measured by the timer 7 reaches the reset deadline. Both are used, but only one of the conditions may be used. Table 5 below shows the notification determination conditions set in the determination condition management unit 5, and for the notification content that “the power purchase is almost zero” and “the power purchase is zero”, only the reset value is used as the reset condition. Is set and the notification operation is stopped until the reset value is exceeded. Only the reset deadline is set as the reset condition for the notification contents “the remaining amount of the storage battery has fallen below the predetermined value” and “solar power generation has started”, and only once until the reset deadline comes No display is made. Here, since the reset deadline is set to 0:00 every day, the flag is reset at 0:00 every day and display is not performed more than once a day.

  In this embodiment, as a reset condition related to time, a condition of whether or not the current time has reached the reset deadline is used. Instead of this condition, a predetermined condition is set after the flag state is reset. You may use the conditions of whether the reset period passed. In addition, as a reset condition related to time, both a condition whether or not the current time has reached the reset deadline and a condition whether or not a predetermined reset period has elapsed since the flag was reset, either If the condition is satisfied, the flag value may be reset.

  In the present embodiment, the notification determination unit 3a determines whether to notify whether or not the measured value exceeds the determination value. However, a certain state is determined based on the power consumption usage information. May be informed when a predetermined time has elapsed.

  Moreover, in this embodiment, although alerting | reporting operation | movement is performed by displaying alerting | reporting content on the screen of the display apparatus 40, it is not the thing of the meaning which limits alerting | reporting operation to the operation | movement which displays a character and an image, but alerting | reporting content May be notified by voice, or both notification by voice and notification by characters or images may be performed.

DESCRIPTION OF SYMBOLS 1 Power management apparatus 2 Power utilization information acquisition part 3 Judgment part 3a Notification | judgment determination part 3b Flag determination part 4 Display data output part (output part)
5 Judgment Condition Management Unit 6 Flag Management Unit 7 Timer 40 Display Device

Claims (5)

A power usage information acquisition unit that acquires usage information related to the power usage status;
A flag management unit that stores a state of a flag that is set to a first state when the notification operation of the notification content related to power use is permitted, and a second state when the notification operation of the notification content is not permitted;
A notification determination condition used for determining whether or not to notify the notification content, and a determination condition management unit that manages a reset condition of the flag;
When the notification determination condition is satisfied by comparing the usage information with the notification determination condition, if the flag stored in the flag management unit is in the first state, the notification instruction for the notification content is output. A notification determination unit that does not output a notification command of the notification content if the flag is in the second state;
When the reset condition is satisfied, the state of the flag stored in the flag storage is set to the first state, and when the notification content is notified after the reset, the state of the flag stored in the flag storage is set to the second state. A flag determination unit to
The power management apparatus comprising: an output unit that outputs the notification content to a notification device when a notification command is output from the notification determination unit.   The reset condition is a condition that either power consumption or power consumption used from a power source exceeds a reset value set corresponding to the notification content in a direction opposite to the notification determination condition. The power management apparatus according to claim 1, wherein: The power usage information acquisition unit stores the acquired usage information in a management table according to a time series,
The power management apparatus according to claim 2, further comprising a reset condition setting unit that refers to the management table and sets a reset value determined based on a change tendency of the usage information in the determination condition management unit.   The reset condition is a condition that the current time has reached the reset deadline set corresponding to the notification content, and the flag is set corresponding to the notification content after the flag is set to the first state. The power management apparatus according to claim 1, wherein at least one of the conditions that the reset period has elapsed is the condition. A notification device that notifies the notification content related to the power usage status, and a power management device that outputs notification data of the notification content to the notification device and causes the notification device to perform a notification operation,
When the power management device permits a power usage information acquisition unit that acquires usage information related to power usage status, and a notification operation of notification content related to power usage, the first state, the notification operation of the notification content is permitted If not, a flag management unit that stores the state of the flag that is set to the second state, a notification determination condition that is used to determine whether to notify the notification content, and a determination condition that manages the reset condition of the flag If the state of the flag stored in the flag management unit is the first state when the notification determination condition is established by comparing the management information with the usage information and the notification determination condition, notification of the notification content A notification determination unit that outputs a command and does not output a notification command of the notification content if the flag is in the second state; and when the reset condition is satisfied, the flag stored in the flag storage When the state of the lag is set to the first state and the notification content is notified after the reset, a flag determination unit that sets the flag state stored in the flag storage to the second state and a notification command from the notification determination unit An output power management system comprising: an output unit that outputs the notification content to the notification device when output.

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