JP5647178B2 - Management device and electrical equipment - Google Patents

Description

The present invention relates to a management apparatus and an electrical device that manage power consumed by a plurality of electrical devices.

2. Description of the Related Art Conventionally, a system in which a plurality of power generation facilities and consumers who consume power generated by each power generation facility are connected so as to be communicable is known. In this system, information on the power consumed by consumers is transmitted to the power generation facility, and the power generation facility controls the amount of power generation based on this power information, thereby eliminating excessive power supply and power shortage. it can.

JP 2004-56996 A

However, in the above system, because there is no mechanism to get less power to the customers, the power which each consumer consumes increases more than expected, when exceeding the limit of power generation amount in the power plant, In the worst case, a power outage occurred.

Such a problem is not limited to a large-scale power generation facility, but can also occur in a private power generation system for each home. In addition, the problem is not limited to the power generation facility, and can be similarly caused when the available power is determined (for example, when the amount of current that can be used in each home is determined). In view of the above, an object of the present invention is to prevent a power failure or a device damage due to a voltage drop caused by excessive power consumption in a management device and an electrical device that manage power consumed by a plurality of electrical devices.

The invention according to claim 1, which has been made to achieve the above object,
Select from any of the various modes including the normal mode that operates with normal power consumption and the power saving mode that operates with less power consumption than the normal power consumption, and commands to enter the power saving mode from the outside Is a management device that manages the power consumed by a plurality of electrical devices that operate in the power saving mode,
Power consumption information acquisition means for acquiring power consumption information when the electric device operates in the normal mode and power consumption when operating in the power saving mode from the electric device,
When the power consumed by a plurality of electrical devices exceeds a preset threshold, the difference in power consumption between the normal mode and the power saving mode exceeds the threshold based on the acquired power consumption information . An electric device selection means for selecting an electric device closest to the excess power as an electric device to be shifted to the power saving mode.
It is provided with.
The invention according to claim 2
Select any one of various modes including a normal mode that operates with normal power consumption and a power-saving mode that operates with less power consumption than the normal power consumption to reduce the power consumption of electrical equipment. An electric device that operates in the power saving mode when receiving a power saving mode transition command from a management device to be managed,
Power consumption information transmitting means for transmitting power consumption information when the electrical device operates in the normal mode and power consumption information when operating in the power saving mode to the management device;
Equipped with a,
The management device is configured as the management device according to claim 1.
It is characterized by.
In addition, in order to solve the subject of this invention, you may comprise as follows. That is, the first invention is
A power management system for managing power consumed by a plurality of electrical devices using a management device,
The management device
Whether or not the total power consumed by the plurality of electrical devices exceeds a first allowable power set to a value smaller than a limit power representing the maximum power that can be supplied to the plurality of electrical devices. First monitoring means for monitoring;
A power saving mode transition command transmitting means for transmitting a power saving mode transition command to each of the electrical devices when the power monitored by the first monitoring means exceeds the first allowable power;
With
Each of the electric devices is
Various modes including at least a normal mode in which the function of each electrical device operates with normal power consumption and a power saving mode in which the function of each electrical device operates with less power consumption than the normal power consumption Selection operation means for selecting any one of the modes and activating the function of each electrical device in any one of the modes;
Upon receiving the power saving mode transition command from the management device, selection control means for causing the selection operation means to select the power saving mode;
It is characterized by having.

That is, in this system, when the total power consumed by the plurality of electrical devices exceeds the first allowable power , the management device sends a command to each electrical device to operate in the power saving mode. When this command is received, the function of the electric device is switched to the power saving mode to operate.

Therefore, according to such a power management system, it is possible to prevent the total power consumption by a plurality of electric devices from exceeding the limit power . Therefore, it is possible to prevent device damage due to power failure or voltage drop due to excessive increase in power consumption by a plurality of electric devices.

The second invention, Te power management system odor described above,
The management device
The total power consumed by the plurality of electrical devices is set to a value smaller than the limit power after a predetermined time has elapsed since the power saving mode transition command was transmitted by the power saving mode transition command transmitting means. Second monitoring means for monitoring whether the second allowable power is exceeded or not,
When the power monitored by the first monitoring means is equal to or less than the second allowable power , a normal mode transition command transmitting means for transmitting a normal mode transition command to each electrical device;
With
The electrical device selection control means may cause the selection operation means to select the normal mode when receiving the normal mode transition command from the management device.

According to such a power management system, when the management device can afford power consumption by a plurality of electric devices (that is, when the power consumption is equal to or lower than the second allowable power ), the operation mode of the electric device is changed from the power saving mode. Return to normal mode.

Therefore, the normal capability of each electrical device can be exhibited by each electrical device.
Further, when each electric device returns to the normal mode, the total power consumption by the plurality of electric devices can be prevented from exceeding the limit power .

Furthermore, according to a third aspect of the present invention, in the power management system described above , the management device may include each unit constituting the electrical device and function as the electrical device.

That is, at least one of the electrical devices functions as a management device. Therefore, according to such a power management system, it is not necessary to dispose the management device separately from the electrical equipment, so that space can be saved.

Further, the fourth invention, Te power management system odor described above,
Comprising a power generation device comprising at least power generation means for generating electric power consumed by the plurality of electrical devices;
The management device
The power generation device detects the electric power generated by setting the power to the power limit, may comprise increasing or decreasing means for increasing or decreasing the allowable power referenced by the monitoring means in association with the increase or decrease of該限field power.

According to such a power management system, the allowable power can be changed in response to fluctuations in the power that can be supplied to the electric device, so that the electric power generated by the power generation device is efficiently used in the electric device. be able to.

In addition, according to a fifth aspect of the present invention, in the power management system described above ,
The power generator is
A power generation control means for increasing or decreasing the power generated by the power generation means in response to a command to change the power generation amount received from the management device;
The management device
A power generation amount increase command transmission unit may be provided that transmits a power generation amount increase command to the power generation device when the power saving mode transition command transmission unit transmits the power saving mode transition command.

According to such a power management system, when the generated power, such as when a transition to the power saving mode is short, it is possible to increase the generated power to the generator device, it is possible to compensate for the power shortage . Further, when the present invention is combined with the invention described in claim 2, the operation mode of the electric device can be quickly returned to the normal mode.

According to a sixth aspect of the present invention, in the power management system described above , each device constituting the system may include power line communication means for performing communication between the devices by power line communication.

According to such a power management system, communication is performed between devices using a power line that supplies power to each device, so there is no need to arrange a cable for wired communication or a wireless communication device for wireless communication. . Electrical equipment can be placed at any location, such as a household outlet.

Next, a seventh invention is a management device for managing power consumed by a plurality of electrical devices,
As the management device, any one of the management devices described above is provided.

According to such a management apparatus, since the management apparatus according to any one of the above is provided as the management apparatus, the total power consumption by the plurality of electric devices can be prevented from exceeding the limit power . Therefore, it is possible to prevent device damage due to power failure or voltage drop due to excessive increase in power consumption by a plurality of electric devices.

Next, an eighth invention is an electric device whose power consumption is managed by a management device,
As an electrical device, any one of the electrical devices described above is provided.

According to such an electric device, when the electric device receives the power saving mode transition command, the electric device switches to the power saving mode and operates. Therefore, the total power consumption by the plurality of electric devices managed by the management device exceeds the limit power . Can not be. Therefore, it is possible to prevent device damage due to power failure or voltage drop due to excessive increase in power consumption by a plurality of electric devices.

In addition, the ninth invention made to achieve the above object,
A power management system for managing power generated by a power generation device including power generation means for generating power consumed by an electrical device by a management device,
The power generator is
A power generation control means for increasing or decreasing the power generated by the power generation means in response to a command to change the power generation amount received from the management device;
The management device
First monitoring means for monitoring whether the power consumed by the electrical device exceeds a first allowable power set to a value smaller than a limit power representing the power supplied by the power generation means;
A power generation amount increase command transmission unit that transmits a power generation amount increase command to the power generation device when it is determined by the first monitoring unit that the power consumed by the electrical device exceeds the first allowable power ; It is characterized by that.

According to such a power management system, when the generated power is insufficient, it is possible to increase the generated power to the generator device, it is possible to compensate for the power shortage. Therefore, equipment damage due to a power failure or voltage drop due to excessive increase in power consumption by the electrical equipment can be prevented.

It is a block diagram which shows schematic structure of the management system of Example 1. FIG. It is a flowchart which shows a management process. It is a flowchart which shows an electric power generation control process. It is a flowchart which shows household appliance processing. It is a block diagram which shows schematic structure of the management system of Example 2. FIG. It is a flowchart which shows a self-supporting household appliance process. It is a flowchart which shows the master process among self-supporting household appliance processes. It is the flowchart (a) which shows the household appliance process of a modification, and the flowchart (b) which shows the management process of a modification.

Embodiments according to the present invention will be described below with reference to the drawings.
[Example 1]
FIG. 1 is a block diagram showing a schematic configuration of a power management system 1 (hereinafter referred to as management system 1) to which the present invention is applied.

The management system 1 includes a power generation device 20, a home appliance that operates using the power generated by the power generation device 20, and a management device 10 that manages the power generated by the power generation device and the power consumed by the home appliance. And.

  The household electrical appliances include a mode switching function that can switch between a normal mode that operates with normal power consumption and a power saving mode that operates with less power consumption than the normal mode, and a compatible household appliance 30 that includes a power line communication function. (Electrical equipment) and non-compliant home appliances 40 that do not have these functions.

  As described above, the management device 10, the compatible home appliance 30, and the non-compatible home appliance 40 configuring the management system 1 are connected to each other via the home power line communication network 5. Further, the power generation device 20 is connected to the power line communication network 5 via the management device 10.

The management device 10 includes a management control unit 11, a breaker 13, a power monitoring unit 15, and a communication unit 17 (power line communication means).
The management control unit 11 is configured as a known microcomputer including a CPU, a ROM, a RAM, and the like, and executes various processes such as a management process described later. Moreover, the management control part 11 can perform power line communication via the communication part 17 comprised as a communication interface, and transmits a control command with respect to the corresponding household appliance 30 and the electric power generating apparatus 20 via this communication part 17. .

The power monitoring unit 15 monitors the power (substantially current) supplied from the power generator 20 to the home power line communication network 5 via the management device 10 and sends the result to the management control unit 11.
In addition, the breaker 13 is configured such that when the current generated by the power supplied from the power generation device 20 to the home power line communication network 5 via the management device 10 exceeds a preset current amount, the power generation device 20 supplies the home power line communication network. The power supplied to 5 is cut off.

Next, the power generation device 20 includes a power generation control unit 21, a power generation unit 23 (power generation unit), and a communication unit 25 (power line communication unit).
The power generation control unit 21 is configured as a known microcomputer including a CPU, a ROM, a RAM, and the like, and executes various processes such as a power generation process described later. The power generation control unit 21 can perform power line communication via the communication unit 25 configured as a communication interface, and receives a command from the management device 10 via the communication unit 25.

  The power generation unit 23 is configured, for example, as a fuel cell unit or a diesel generator, and controls the amount of power generation according to a command from the power generation control unit 21. The power generation amount (power generation level) can be set, for example, in 10 steps, and the power generation control unit 21 controls the power generation amount in steps by transmitting a control signal to the power generation unit 23.

Next, the corresponding home appliance 30 includes a home appliance control unit 31, a communication unit 33 (power line communication means), a mode storage unit 35, and a configuration 39 for each home appliance.
The home appliance control unit 31 is configured as a well-known microcomputer including a CPU, a ROM, a RAM, and the like, and executes various processes such as a home appliance process described later. Moreover, the household appliance control part 31 can perform power line communication via the communication part 33 comprised as a communication interface, and receives the instruction | command from the management apparatus 10 via this communication part 33. FIG.

  As the configuration 39 for each home appliance, for example, if the corresponding home appliance 30 is an electric pot, a configuration required as an electric pot is shown. If the corresponding home appliance 30 is an air conditioner, a configuration required as an air conditioner is shown.

Further, the non-compliant home appliance 40 includes only a configuration for each home appliance referred to as the compatible home appliance 30.
Next, processing performed in the management apparatus 10 will be described with reference to FIG. FIG. 2 is a flowchart showing management processing executed by the management control unit 11 of the management apparatus 10.

The management process is a process executed when the management apparatus 10 is activated. First, the power monitoring unit 15 is used to monitor the power consumption flowing from the power generation apparatus 20 to the power line communication network 5 (S110). And it is determined whether the information of the setting output (limit power ) of the power generator 20 was received from the power generator 20 (S115: increase / decrease means).

  If the information of the setting output is received from the power generator 20 (S115: Yes), each threshold value (margin threshold value, first consumption threshold value, second consumption threshold value) is calculated according to this setting output (S120: increase / decrease means) ). Here, each threshold value is calculated by multiplying the set output by a constant (value greater than 0 and less than 1) set for each threshold value. Each threshold is set so as to satisfy the relationship of first consumption threshold> second consumption threshold> room threshold. By satisfying such a relationship for each threshold, it is possible to prevent generation of useless power and to quickly return from the power saving mode to the normal mode.

If the setting output information is not received from the power generation device 20 (S115: No), the process proceeds to S130.
Subsequently, in S130, it is determined whether or not a predetermined time set in advance has elapsed since the power generation amount increase command, which is a command for increasing the power generation amount, was transmitted to the power generation device 20 last time (S130). The predetermined time referred to here indicates a time required for the power generation apparatus 20 that has received a command to increase (or decrease) the power generation amount to change the output, and is set to about 2 seconds, for example.

If the predetermined time has elapsed (S130), it is determined whether or not the surplus power obtained by subtracting the power consumption acquired in S110 from the set output is greater than the surplus threshold (S140).
If the surplus power is greater than the surplus threshold (S140: Yes), a power generation amount decrease command that is a command to decrease the power generation amount is transmitted to the power generation apparatus 20 (S150).

And when the process of S150 is complete | finished, when predetermined time has not passed since transmitting the electric power generation amount increase instruction | command in S130 (S130: No), and when margin electric power is less than a margin threshold value in S140 ( In S140: No), the process proceeds to S160.

Next, in S160, it is determined whether or not the power consumption flowing from the power generator 20 to the power line communication network 5 is greater than the first consumption threshold (S160: first monitoring means). If the power consumption is less than the first threshold (S160: No), the process proceeds to S190. If the power consumption is greater than the first threshold (S160: Yes), a power saving mode shift command is broadcast to each corresponding home appliance 30 (S170: power saving mode shift command transmitting means).

Subsequently, a power generation amount increase command is transmitted to the power generation device 20 (S180: power generation amount increase command transmission means), and the process proceeds to S190.
In S190, it is determined whether or not an inquiry for permission to shift to the normal mode for requesting permission to return to the normal mode is received from any of the corresponding home appliances 30 (S190). If an inquiry for permission to shift to the normal mode has not been received (S190: No), the management process is terminated as it is.

Moreover, if the inquiry about permission to shift to the normal mode is received (S190: Yes), it is determined whether or not the power consumption flowing from the power generation device 20 to the power line communication network 5 is less than the second consumption threshold (S200: No. 1). 2 monitoring means).

If the power consumption is less than the second consumption threshold (S200: Yes), a normal mode shift permission command for permitting the return to the normal mode is transmitted to each corresponding home appliance 30 (S210: normal mode shift command transmitting means) ), And ends the management process.

If the power consumption is greater than the second consumption threshold (S200: No), a normal mode transition prohibition command for prohibiting returning to the normal mode is transmitted to each corresponding home appliance 30 (S220), and the management process is performed. finish.

Next, the power generation control process executed in relation to the management process will be described with reference to FIG. Figure
3 is a flowchart showing a power generation control process executed by the power generation control unit 21 of the power generation apparatus 20. The power generation control process corresponds to the power generation control means in the present invention.

In the power generation control process, first, the power generation unit 23 is operated with the set output that has been set to generate power (S310), and the setting output at this time is transmitted to the management apparatus 10 (S315).
Subsequently, it is determined whether or not a power generation amount reduction command is received from the management device 10 (S320). If the power generation amount reduction command has been received (S320: Yes), the power generation amount reduction operation set by lowering the one-step power generation level is performed (S330), and the setting output at this time is transmitted to the management apparatus 10. (S335).

  When the process of S330 is completed, or when the power generation amount decrease command is not received from the management device 10 in S320, it is determined whether or not the power generation amount increase command is received from the management device 10 (S340). If the power generation amount increase command is received (S340: Yes), the power generation amount increase operation set by raising the one-stage power generation level is performed (S350), and the setting output at this time is transmitted to the management device 10. (S355). The power generation control process is terminated.

If the power generation amount increase command has not been received in S340 (S340: No), the power generation amount control process is terminated.
Next, home appliance processing executed in relation to the management processing and the power generation control processing will be described with reference to FIG. FIG. 4 is a flowchart showing home appliance processing executed by the home appliance control unit 31 of the corresponding home appliance 30. The home appliance processing corresponds to the selection operation means in the present invention.

  In the home appliance processing, first, it is determined whether or not a power saving mode transition command is received from the management device 10 (S410: selection control means). If the power saving mode shift command has been received (S410: Yes), the operation shifts to the power saving mode (S420: selection control means). Here, the power saving mode is different for each corresponding home appliance 30. For example, when the corresponding home appliance 30 is an electric pot, if the electric pot is set to the power saving mode, A heat retention mode that does not consume power (a mode that keeps the temperature of hot water constant) is allowed, but a water heater mode that consumes a lot of power (a mode that boils hot water) is prohibited. Further, for example, when the corresponding home appliance 30 is an air conditioner, if the air conditioner is set in the power saving mode, air conditioning for operating the compressor and the heat pump is prohibited, and only air blowing is permitted.

  In other words, when the corresponding home appliance 30 is set in the power saving mode, the operation is performed such that the power consumption is reduced by limiting the function as compared with the case of operating in the normal mode.

  When the process of S420 is completed and if the power saving mode transition command is not received in S410 (S410: No), it is determined whether or not the current mode is the power saving mode (S430). If the current mode is not the power saving mode (S430: No), the home appliance processing is terminated as it is.

  If the current mode is the power saving mode (S430: Yes), it is determined whether or not the duration time of the power saving mode is equal to or longer than a predetermined time set in advance (S440). If the duration time of the power saving mode is equal to or longer than the predetermined time (S440: Yes), an inquiry for permission to shift to the normal mode is transmitted to the management apparatus 10 (S450).

  When the process of S450 is completed and when the duration of the power saving mode is less than the predetermined time in the process of S440, it is determined whether or not a normal mode transition permission command is received from the management apparatus 10 (S460). ).

If the normal mode transition permission command is received (S460: Yes), the process shifts to the normal mode (S470), and the home appliance process is terminated.
Moreover, if the normal mode transition permission command has not been received (S460: No), the home appliance processing is terminated as it is.

In the management system 1 described in detail above, the management control unit 11 of the management device 10 supplies the total power consumed by the plurality of compatible home appliances 30 to the plurality of compatible home appliances 30 in the management process. It is monitored whether or not the first consumption threshold set to a value smaller than the limit power representing the maximum power that can be obtained is exceeded (S160). And when the electric power to monitor exceeds the 1st consumption threshold value, a power saving mode transfer command is transmitted to each corresponding household appliance 30 (S170).

Each corresponding home appliance 30, at home appliances processing, the normal mode, and consumes less power than the normal power consumption functions each corresponding home appliance 30 has to operate the function of the corresponding home appliance 30 has a normal power consumption One of the various modes including the power saving mode that operates in the mode is selected, and the function of the corresponding home appliance 30 is activated in any mode. In particular, when a power saving mode shift command is received from the management apparatus 10, the mode shifts to the power saving mode (S410, S420).

That is, in this system, when the total power consumed by the plurality of corresponding home appliances 30 exceeds the first consumption threshold, the management device 10 sends a command to each corresponding home appliance 30 to operate in the power saving mode, When the corresponding home appliance 30 receives this command, the corresponding home appliance 30 operates by switching the function of the corresponding home appliance 30 to the power saving mode.

Therefore, according to such a management system 1, it is possible to prevent the total power consumption by the plurality of corresponding home appliances 30 from exceeding the limit power . Therefore, it is possible to prevent equipment damage due to power failure or voltage drop due to excessive increase in power consumption by the plurality of compatible home appliances 30.

Moreover, the management apparatus 10 is a value in which the total power consumed by the plurality of corresponding home appliances 30 is smaller than the limit power after a predetermined time has elapsed since the power saving mode transition command was transmitted in the management process. It is monitored whether or not the second consumption threshold set in step S200 is exceeded (S200).

And the management apparatus 10 transmits normal mode transfer instruction | indication with respect to each corresponding household appliance 30, when the electric power to monitor is below a 2nd consumption threshold value (S210).
Moreover, the household appliance control part 31 of the corresponding household appliance 30 will transfer to normal mode, if a normal mode transfer instruction | indication is received from the management apparatus 10 by household appliance process.

Therefore, according to such a management system 1, when the management apparatus 10 can afford power consumption by the plurality of corresponding home appliances 30 (that is, when the power consumption is equal to or lower than the second consumption threshold), the operation mode of the corresponding home appliance 30 is set. Is restored from the power saving mode to the normal mode. Therefore, the normal capability which each corresponding household appliance 30 has can be demonstrated to each corresponding household appliance 30.

Moreover, when each corresponding home appliance 30 returns to the normal mode, the total power consumption by the plurality of corresponding home appliances 30 can be prevented from exceeding the limit power .
Furthermore, the management system 1 includes a power generation device 20 including a power generation unit 23 that generates power consumed by at least a plurality of corresponding home appliances 30.

Then, the management device 10 detects the power generated by the power generation device 20 in the management process, sets this power as the limit power, and increases or decreases the allowable power (threshold value) in conjunction with the increase or decrease in the limit power .
(S115, S120).

Therefore, according to such a management system 1, the allowable power can be changed in accordance with the fluctuation of the power that can be supplied to the corresponding home appliance 30, so that the power generated by the power generation device 20 is changed by the corresponding home appliance 30. It can be used efficiently.

In addition, the power generation control unit 21 of the power generation device 20 increases or decreases the power generated by the power generation unit 23 according to a command to change the power generation amount received from the management device 10 in the power generation control process.
Then, when the power saving mode shift command is transmitted, the management device 10 transmits a power generation amount increase command to the power generation device 20 (S180).

Therefore, according to the management system 1, when the generated power, such as when a transition to the power saving mode is short, it is possible to increase the generated power to the generator 20 to compensate for the power shortage be able to. Moreover, the operation mode of the corresponding home appliance 30 can be quickly returned to the normal mode.

In the management system 1, each device configuring this system includes communication units 17, 25, and 33 that perform communication between the devices by power line communication.
Therefore, according to such a management system 1, since communication is performed between devices using a power line that supplies power to each device, it is necessary to arrange a cable for wired communication and a wireless communication device for wireless communication. There is no. The corresponding home appliance 30 can be placed at an arbitrary position such as a household outlet.

[Example 2]
Next, another type of management system 2 will be described. In the present embodiment (embodiment 2), only portions different from the management system 1 of the first embodiment will be described in detail, and the same portions as those of the management system 1 of the first embodiment will be denoted by the same reference numerals and description thereof will be omitted. To do.

FIG. 5 is a block diagram showing a schematic configuration of the management system 2 of the present embodiment.
The management system 2 bears the function of managing the corresponding home appliance 30 and the power generation device 20 included in the management device 10 of the first embodiment when any one of the corresponding home appliances 30 becomes a master device. In addition, only a plurality of compatible home appliances 30 and power generation devices 20 are connected to the home power line communication network 5. That is, in the management system 2, the management device 10 is not arranged, and the power generation device 20 is directly connected to the home power line communication network 5.

Moreover, the corresponding home appliance 30 includes a power detection unit 37 that detects power consumed by itself.
In such a management system 2, each corresponding home appliance 30 executes the processing shown in FIGS. FIG. 6 is a flowchart showing a self-contained home appliance process executed by the home appliance control unit 31 of the corresponding home appliance 30, and FIG. 7 is a flowchart showing a master process of the self-contained home appliance process. In the master process, when the corresponding home appliance 30 that functions as a master device transmits a command to another corresponding home appliance 30, the same command is also transmitted to the own device.

In the self-contained home appliance processing, first, it is determined whether or not the self-device is set as a master device that functions as a management device (S510).
If the own apparatus is set as the master apparatus (S510: Yes), the process proceeds to S540. If the own device is not set as the master device (S510: No), it is determined whether another device (other compatible home appliance 30) is set as the master device (S520).

If no other device is set as the master device (S520: No), the own device is set as the master device (S530), and the process proceeds to S540.
In S540, the master process shown in FIG. 7 is executed.

As shown in FIG. 7, the master process first determines whether or not power consumption information has been received from another device (S610).
If power consumption information is received from another device (S610: Yes), the received power consumption information is stored in the RAM of the home appliance control unit 31 together with the power consumption information detected by the power detection unit 37 of the own device. Or the like (S620).

Subsequently, the overall power consumption is calculated based on the stored power consumption information of all the devices (S630).
Then, the management process (excluding S110) shown in FIG. 2 is executed (S640), and the master process is terminated.

When the master process ends, the process returns to FIG. 6 to execute the home appliance process shown in FIG. 4 (S570), and the independent home appliance process ends.
On the other hand, if another device is set as the master device in S520 (S520: Yes), it is determined whether or not a predetermined time has passed since the current amount information was transmitted from the own device last time. (S550).

If the predetermined time has passed (S550: Yes), the power consumption consumed by the own device is transmitted to the master device (S560), the home appliance processing shown in FIG. 4 is executed (S570), and the independent home appliance processing is terminated. .

Moreover, if the predetermined time has not passed (S550: No), the household appliance process shown in FIG. 4 will be performed (S570), and an independent household appliance process will be complete | finished.
As described above, the management apparatus 10 according to the present embodiment includes each unit configuring the corresponding home appliance 30 and functions as the corresponding home appliance 30.

  That is, at least one of the compatible home appliances 30 functions as the management device 10. Therefore, according to such a management system 2, since it is not necessary to arrange the management apparatus 10 separately from the corresponding home appliance 30, space can be saved.

[Other Embodiments]
Embodiments of the present invention are not limited to the above-described embodiments, and can take various forms as long as they belong to the technical scope of the present invention.

  For example, in the above embodiment, when switching between the normal mode and the power saving mode, the mode transition command is transmitted to all the corresponding home appliances 30, but the mode transition command is transmitted only to a specific corresponding home appliance 30. You may do it.

A specific example in this case is shown in FIG. FIG. 8A is a flowchart illustrating home appliance processing according to the modification, and FIG. 8B is a flowchart illustrating management processing according to the modification.
In home appliances processing shown in FIG. 8 (a), prior to the processing of S410, and transmits the power consumption information of the power consumption and the power saving mode in the normal mode to the master device (S405).

And the process after S160 in a management process performs a process as shown in FIG.8 (b). That is, in S160, if the power consumption is greater than the first threshold (S160: Yes), the excess power exceeding the first consumption threshold is calculated (S710).

Subsequently, it has received a power information of the power consumption and the power saving mode in the normal mode
It is determined whether or not (S720). If the received power consumption information of the power consumption and the power saving mode in the normal mode (S720: Yes), the identifier for identifying the corresponding home appliance 30 received power information of (product number and ID, etc. ) And stored in a memory such as a RAM (S730), and the process proceeds to S740.

Further, if not receiving the power information of power consumption and power-saving mode in the normal mode at S720 (S720: No), the optimal response appliances according to the excess power calculated in S710, switches the mode 30 is selected (S740).

Here, in the processing of S740, for example, of the corresponding home appliance 30 of the current normal mode, there is a difference in power consumption between the normal mode and the power saving mode is not less than the excess power, those closest to the excess power Select.

Also, if you select the most one difference in power consumption between the normal mode and the power saving mode is large becomes less excess power, select a plurality of corresponding home appliance 30, the normal mode and the saving in the corresponding home appliance 30 the sum of the power consumption difference between the power mode, will be more than the excess power, and selecting a combination of those closest to the excess power.

Then, a power saving mode transition command is transmitted to the selected corresponding home appliance 30 (S750).
Thereafter, the processes of S180 and S190 are performed. If the determination in S190 is affirmative, the overall power consumption when the corresponding home appliance 30 set in the power saving mode is returned to the normal mode is calculated (S760).

Then, it is determined whether the overall power consumption is less than a preset third threshold value (S770).
If the overall power consumption is less than the third threshold (S770: Yes), the process of S210 is executed and the management process is terminated. If the overall power consumption is greater than the third threshold (S770: No), the process of S220 is executed, and the management process is terminated.

According to such a management system, since only the minimum necessary compatible home appliance 30 is switched to the power saving mode, it is possible to prevent excessive power consumption without reducing the capability of the compatible home appliance 30 as much as possible.

Moreover, in the said Example, although comprised so that the management apparatus 10 and the some corresponding | compatible household appliance 30 might monitor electric power (electric current amount), for example, a power line communication function is provided in a part of home power line communication network 5. It is also possible to dispose a voltage measuring device and monitor the power by detecting an abnormality such as a voltage drop using the voltage measuring device.

  In this case, since the abnormality can be detected only by arranging the voltage measuring device at one place, the configuration of the management system can be simplified. Moreover, since a voltage measuring device can transmit the monitoring result of a voltage with power line communication with respect to the corresponding household appliance 30 which functions as the management apparatus 10 or a master apparatus, a voltage measuring device can be arrange | positioned in arbitrary positions. it can.

DESCRIPTION OF SYMBOLS 1, 2 ... Management system, 5 ... Power line communication network, 10 ... Management apparatus, 11 ... Management control part, 13 ... Breaker, 15 ... Power monitoring part, 17 ... Communication part, 20 ... Power generation apparatus, 21 ... Power generation control part, DESCRIPTION OF SYMBOLS 23 ... Electric power generation part, 25 ... Communication part, 30 ... Corresponding household appliance, 31 ... Home appliance control part, 33 ... Communication part, 35 ... Mode memory | storage part, 37 ... Electric power detection part, 39 ... Configuration for every household appliance, 40 ... Non-corresponding household appliance .

Claims (2)

Select from any of the various modes including the normal mode that operates with normal power consumption and the power saving mode that operates with less power consumption than the normal power consumption, and commands to enter the power saving mode from the outside Is a management device that manages the power consumed by a plurality of electrical devices that operate in the power saving mode,
Power consumption information acquisition means for acquiring power consumption information when the electric device operates in the normal mode and power consumption when operating in the power saving mode from the electric device,
When the power consumed by a plurality of electrical devices exceeds a preset threshold, the difference in power consumption between the normal mode and the power saving mode exceeds the threshold based on the acquired power consumption information . An electric device selection means for selecting an electric device closest to the excess power as an electric device to be shifted to the power saving mode.
A management apparatus comprising: Select any one of various modes including a normal mode that operates with normal power consumption and a power-saving mode that operates with less power consumption than the normal power consumption to reduce the power consumption of electrical equipment. An electric device that operates in the power saving mode when receiving a power saving mode transition command from a management device to be managed,
Power consumption information transmitting means for transmitting power consumption information when the electrical device operates in the normal mode and power consumption information when operating in the power saving mode to the management device;
Equipped with a,
The management device is configured as the management device according to claim 1.
Electrical equipment according to claim.

Images