JP4039451B1 - Power line communication device, power supply system, and program - Google Patents

Power line communication device, power supply system, and program Download PDF

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JP4039451B1
JP4039451B1 JP2006254986A JP2006254986A JP4039451B1 JP 4039451 B1 JP4039451 B1 JP 4039451B1 JP 2006254986 A JP2006254986 A JP 2006254986A JP 2006254986 A JP2006254986 A JP 2006254986A JP 4039451 B1 JP4039451 B1 JP 4039451B1
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power
line communication
power line
unit
device
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JP2008079410A (en
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昌彦 宮田
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富士ゼロックス株式会社
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/70Systems integrating technologies related to power network operation and communication or information technologies mediating in the improvement of the carbon footprint of electrical power generation, transmission or distribution, i.e. smart grids as enabling technology in the energy generation sector
    • Y02E60/78Communication technology specific aspects
    • Y02E60/7876Communication technology specific aspects
    • Y02E60/7892Communication technology specific aspects using the power network as support for the transmission
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/10Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by communication technology
    • Y04S40/14Communication technology specific aspects
    • Y04S40/146Communication technology specific aspects using power networks as support for transmission

Abstract

A power line communication device and the like that enable power management of a plurality of devices without using a server device.
Power from a power line is supplied to a power supply path 12 through a power plug 14 and a power cord 13 and is supplied to a power consuming device connected to an outlet 15. A unit portion 16 is disposed in the middle of the power supply path 12. The unit 16 stores a function unit for performing power line communication with another power line communication device 10 through the power line, a function unit for detecting power supplied to the power consuming device, and information unique to itself. A storage unit.
[Selection] Figure 2

Description

  The present invention relates to a power line communication device, a power feeding system, and a program.

  A technique that can realize stable operation of the entire system by managing the power consumption of devices connected to a network has been conventionally proposed (see, for example, Patent Document 1). In this patent document 1, while detecting the power consumption of the whole network system, the network system is controlled so that the power consumption does not exceed a certain level, and a stable system operation is realized. A control method is disclosed.

JP 2002-142385 A

  An object of this invention is to provide the power line communication apparatus etc. which enable the electric power monitoring of an apparatus.

The above object, a power line communication apparatus to which the present invention is applied, a feeding means for feeding a power from the power line to the state manageable devices, the power supply as the power information on the power of the device to be powered by said power supply means wherein the power information detection means, and storage means for storing identification information for identifying itself, the power information detected by the power information detecting means for detecting the state of the device corresponding to the power fed from the means a power line communication means for communicating power line in power line by using the identification information stored in the storage means, based on information obtained from another power line communication apparatus by the detected power information or the power line communication unit by the power information detecting means Switching means for switching presence / absence of power supply to the device by the power supply means .

  Here, the information processing apparatus may further include a setting unit that sets identification information used in communication by the power line communication unit, and the storage unit stores the identification information set by the setting unit. . The setting unit includes a manual setting unit configured to be able to set identification information, and an automatic setting unit that sets identification information using information acquired from another power line communication device by the power line communication unit. The storage means may replace the already stored identification information with new identification information set by the automatic setting unit.

  In addition, the power information detection unit may detect power information for each preset time and store the result in the storage unit.

Further, based on the power information acquired from the other power line communication device by the power line communication means, the power line communication is instructed to the other power line communication device to instruct the power supply to the device to be fed by the other power line communication device. It can be characterized by transmitting by means. In addition, when receiving a power supply cutoff instruction from another power line communication device via the power line communication unit, the power supply to the device is cut off based on the power information by the power information detection unit of the device to which power is supplied. Can be a feature. In addition, the power line communication unit may communicate with another power line communication device that the switching unit has switched the power supply to the device.

In addition, the communication apparatus may further include another communication unit that performs communication with a device that is fed by the power feeding unit using a communication medium that is different from the power line communication unit .

Further, according to an instruction from another power line communication device received by the power line communication means, it is possible to control the power supply of a device that communicates with the other communication means. . The identification information stored in the storage means may further include setting means configured to set information input through the another communication means.

Further, taking another aspect of the present invention, a power supply system to which the present invention is applied has power supply means for supplying power from a power line to a device capable of state management , and the power line is used as a communication medium. a plurality of power supply apparatus having a power line communication means for performing power line communication, wherein each having a plurality of power supply devices, the corresponding power fed as electric power information about power device to be powered by the power supply device and power information detecting means for detecting the state of the device, wherein each having a plurality of feeding devices, and storage means for storing identification information for identifying the power supply device, each of the plurality of power supply apparatus has , look including a switching means for switching the presence or absence of power supply to the device by the feeding means, the power line communication unit, the power information detected by the power information detecting means to said memory means The power line communication is performed on the power line using the stored identification information, and the switching unit is configured to supply the power based on the power information detected by the power information detection unit or information acquired from another power line communication device by the power line communication unit. It is characterized in that the presence or absence of power supply to the device by means is switched .
Here, the power information detection unit may detect power information for each preset time and store the result in the storage unit .

  Here, each of the plurality of power supply devices may be characterized in that the power information detected by the power information detection unit communicates with another power supply device via the power line by the power line communication unit. In addition, each of the plurality of power supply apparatuses may transmit a power supply cutoff instruction to the device to the other power supply apparatus based on the power information acquired from the other power supply apparatus. . Further, when each of the plurality of power supply devices receives a power supply cutoff instruction from another power supply device, the plurality of power supply devices cut off the power supply to the device based on the power information by the power information detection unit of the device to which power is supplied. Can be characterized.

  In addition, each of the plurality of power supply apparatuses may further include another communication unit that performs communication with a device that supplies power using a communication medium different from the power line communication unit. In this case, among the plurality of power feeding devices, devices that are fed by different power feeding devices can communicate with each other by the power line communication unit and the other communication unit.

The identification information stored in the storage means may further include setting means configured to set information input through the other communication means.

In addition, each of the plurality of power supply devices may communicate with another power supply device that the presence or absence of power supply to the device has been switched by the switching unit.

Further also capture the present invention from another aspect, the program to which the present invention is applied causes a computer device mounted power to the power supply apparatus for supplying power to the state manageable equipment from the power line is powered by said power supply device a detection function of detecting a state of the device corresponding to the power as electric power information about power of the device is powered from the power supply device that includes a storage function of storing identification information for identifying the power supply device, the detection function A power line communication function for performing power line communication with another power supply apparatus using a power line using the identification information stored by the storage function, and the power information detected by the detection function or the power line communication. is used for realizing a switching function, the switching between the presence or absence of power supply to the device based on information obtained from the other of the power supply apparatus by the function

Here, it is possible to further realize a setting function for setting identification information using information acquired from another power supply device by the power line communication function. Further, the detection function is characterized in that power information is detected every preset time and the result is stored in the storage function .

According to the first aspect, it is possible to appropriately perform power control of a device capable of state management as compared with a case where the present invention is not adopted .
According to claim 2, it is possible to monitor power using the identification information.
According to the third aspect, a setting method adapted to the connected device is possible.
According to the fourth aspect of the present invention, it is possible to grasp the power consumption for each hour and appropriately perform power management compared to the case where the present invention is not adopted.
According to claim 5, it is possible to transmit a power supply cutoff instruction to another power supply apparatus using power line communication .
According to the sixth aspect, it is possible to receive a power supply cutoff instruction from another power supply apparatus using power line communication .
According to the seventh aspect, it is possible to recognize the power interruption in another power line communication device .
According to the eighth aspect, communication between the power line communication devices and the device to be fed can be performed by a plurality of communication means .
According to claim 9, it is possible to control the power of another power line communication device using power line communication.
According to the tenth aspect, it is possible to acquire the connected device information without providing a setting unit in the apparatus .
According to the eleventh aspect, it is possible to appropriately control the power of a device whose state can be managed as compared with the case where the present invention is not adopted .
According to the twelfth aspect, as compared with the case where the present invention is not adopted, it is possible to grasp the power consumption for each hour and appropriately perform power management .
According to the thirteenth aspect, power information can be shared with other power supply apparatuses.
According to the fourteenth aspect, it is possible to transmit a power supply cutoff instruction to another power supply apparatus using power line communication.
According to the fifteenth aspect, it is possible to receive a power supply cutoff instruction from another power supply apparatus using power line communication.
According to the sixteenth aspect, it is possible to communicate with the power feeding apparatus even if the power feeding device does not support power line communication.
According to the seventeenth aspect, it is possible to communicate between devices fed by different power feeding devices, and to monitor each other's power.
According to the eighteenth aspect, it is possible to obtain the connected device information without providing a setting unit in the apparatus .
According to the nineteenth aspect, it is possible to recognize power-off in another power feeding device .
According to the twentieth aspect, it is possible to appropriately control the power of a device capable of state management as compared with the case where the present invention is not adopted .
According to the twenty-first aspect, the identification information can be set even if the user does not set the identification information.
According to the twenty-second aspect, as compared with the case where the present invention is not adopted, it is possible to grasp the power consumption for each hour and appropriately perform power management .

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
[First Embodiment]
FIG. 1 is a schematic configuration diagram illustrating a system (power feeding system) using the power line communication device according to the first embodiment.
The system shown in FIG. 1 is, for example, a system for energy saving management of the entire office equipment. As shown in FIG. 1, multifunction devices 1A and 1B, personal computers 2 and shredders as power consuming devices are connected to a power line PL wired in an office from a power company via power line communication devices (power feeding devices) 10 and 20. 3 is connected. That is, the power of the power line PL is supplied to the multifunction peripherals 1A and 1B, the personal computer 2 and the shredder 3 through the power line communication devices 10 and 20. In other words, the multifunction peripherals 1A and 1B, the personal computer 2 and the shredder 3 are connected via the power line communication devices 10 and 20 and the power line PL.

  A power line communication device 10 is attached to the personal computer 2. The power line communication device 20 is attached to the multifunction peripherals 1A and 1B and the shredder 3. Although these power line communication apparatuses 10 and 20 have the same basic configuration, they have different parts as described later.

  Here, the multifunction peripherals 1A and 1B are image devices having functions such as a scanner, a printer, a facsimile, and a copying machine, and operate by being supplied with power from the power line PL. The personal computer 2 is a device that is loaded with various application software and that receives various types of application processing such as document creation upon receiving power supply from the power line PL. The shredder 3 is a device for shredding paper to be discarded with the power of the power line PL.

2A and 2B are diagrams illustrating the power line communication device 10, where FIG. 2A is an external perspective view, and FIG. 2B is a configuration diagram.
As shown in FIG. 2, the power line communication apparatus 10 is connected to the apparatus main body 11, a power supply path 12 (see FIG. 2B) disposed inside the apparatus main body 11, and the power supply path 12. And a power cord 13 extending outward from the apparatus main body 11. In addition, the power line communication device 10 is provided at the tip of the power cord 13 and connected to a power outlet (not shown) of the power line PL (see FIG. 1) 14 and an outer surface of the device main body 11. And an outlet (output unit, outlet) 15 for outputting power from the power supply path 12 to various devices (power monitored devices). The power supply path 12, the power cord 13, the power plug 14, and the outlet 15 can constitute power supply means.

  In addition, the power line communication device 10 includes a unit portion (see FIG. 2B) 16 between the power cord 13 and the outlet 15. The unit 16 can be referred to as a power line communication unit and a power information detection unit. That is, the unit unit 16 as the power line communication means transmits / receives the power line superimposed signal through the power line PL to / from other power line communication devices connected by the power line PL (see FIG. 1). The unit unit 16 serving as a power information detection unit detects power consumption input from the power line PL through the power cord 13. Thus, it can be said that the power line communication device 10 is obtained by adding various intelligence functions to a so-called table tap.

FIG. 3 is a block diagram for explaining the configuration of the unit section 16.
As shown in FIG. 3, the unit unit 16 includes a clamp coil 16a for detecting a current flowing through the power supply path 12, and a control unit (CPU for controlling power line communication while controlling based on the detection result of the clamp coil 16a. 16b.
The control unit 16b will be further described. The control unit 16b includes a power detection function unit 16b1 and a power line communication function unit 16b2. The power detection function unit 16b1 detects a power value by receiving a detection result of the clamp coil 16a and performing a predetermined calculation. The power line communication function unit 16b2 transmits / receives a predetermined signal to / from the power supply path 12 according to a predetermined procedure.

  Further, the unit 16 converts the current of the power supply path 12 from alternating current to direct current, and transmits and receives between the power supply path 12 and the control section 16b, the direct current power supply section 16c supplying the direct current to the control section 16b. And a filter 16d for power line communication that cuts off signals other than the signal for use.

The unit unit 16 includes a number setting unit (setting unit) 16e for setting a unit number of the unit unit 16, a number of the apparatus main body 11, an identification number or a unique ID number (hereinafter abbreviated as a unit number). Yes. The unit unit 16 includes an automatic setting unit 16f for automatically setting a unit number. The unit section 16 includes a storage section (storage means) 16g as a non-volatile memory (NVM (Non Volatile Memory)) for storing the unit number set by the number setting section 16e and the automatic setting section 16f. Yes. Therefore, for example, at the time of shipment, the unit number is set in advance by manual setting by the number setting unit 16e and stored in the storage unit 16g, and then the unit number by manual setting is connected by the automatic setting unit 16f when connected to the power line PL. It can be used to automatically change and store in the storage unit 16g.
In the present embodiment, the number setting unit 16e and the automatic setting unit 16f are provided. However, it may be configured to include only one of them.
Further, the storage unit 16g as a non-volatile memory here refers to a memory that can rewrite data and retain data after the power is turned off, for example, flash memory, EEPROM (Electronically Erasable and Programmable Read Only Memory). Etc. can be used.

FIG. 4 is a block diagram of the storage unit 16g.
As shown in FIG. 4, the storage unit 16g includes a unit number storage unit 16g1 that stores the unit numbers set by the number setting unit 16e (see FIG. 3) and the automatic setting unit 16f (see FIG. 3). The storage unit 16g includes a power information storage unit 16g2 that stores various types of power information related to power control. Further, the storage unit 16g includes a shared information storage unit 16g3 that stores information shared with the other power line communication devices 10 and 20 by the power line communication function unit 16b2 (see FIG. 3).

  5A and 5B are diagrams illustrating the power line communication device 20, where FIG. 5A is an external perspective view, and FIG. 5B is a configuration diagram. The basic configuration of the power line communication device 20 shown in FIG. 5 is the same as that of the power line communication device 10 shown in FIG. That is, the power line communication device 20 includes a device main body 21, a power supply path 22 (see FIG. 5B), a power cord 23, a power plug 24, and an outlet 25. These can have the same configuration as the device main body 11, the power supply path 12, the power cord 13, the power plug 14, and the outlet 15 in the power line communication device 10, respectively.

  The power line communication apparatus 20 includes a unit unit 26 (see FIG. 5B). The configuration of the unit part 26 will be described later. In addition, the power line communication device 20 includes a power switch unit (switching unit) 27 disposed in the power supply path 22 of the device main body 21. The power switch unit 27 is located in the power supply path 22 between the unit unit 26 and the outlet 25. The power switch unit 27 is connected to the control unit 26b so that ON / OFF control is performed by the control unit 26b (see FIG. 6). That is, when the power switch unit 27 is turned off by the control unit 26b, power supply to the device connected to the outlet 25 is cut off.

  More specifically, the power switch unit 27 is located downstream of the unit unit 26 so that power is supplied to the unit unit 26 even when the power supply is interrupted by the power switch unit 27. ing. In other words, it is not necessary to energize the dedicated energy-saving management server device or the dedicated device that has the role of the power monitoring function, and it is only necessary to energize only the power communication function device of each individual device to be monitored. .

FIG. 6 is a block diagram for explaining the configuration of the unit section 26.
The basic configuration of the unit section 26 shown in FIG. 6 is the same as that of the unit section 16 shown in FIG. That is, the unit unit 26 includes a clamp coil 26a, a DC power supply unit 26c, a filter 26d, a number setting unit 26e, an automatic setting unit 26f, and a storage unit 26g. These may have the same configuration as the clamp coil 16a, DC power supply unit 16c, filter 16d, number setting unit 16e, automatic setting unit 16f, and storage unit 16g in the unit unit 16, respectively.
The unit unit 26 includes a control unit 26b having a power detection function unit 26b1, a power line communication function unit 26b2, and a power shut-off function unit 26b3. The power cutoff function unit 26b3 here shuts off power supply in response to an instruction from the power detection function unit 26b1 or the power line communication function unit 26b2.

FIG. 7 is a flowchart showing a processing procedure for power shutdown using the power line communication device 20. FIG. 8 is a diagram for explaining the setting and storage of the unit number.
In the processing procedure shown in FIG. 7, first, the unit number is set by the number setting unit 16e (see FIG. 3) for the power line communication device 10 (see FIG. 1), and the number is set for the power line communication device 20 (see FIG. 1). A unit number is set by the unit 26e (see FIG. 6) (step 101). Thereafter, the set unit numbers are stored in the storage units 16g and 26g (see FIGS. 3 and 6) by the control units 16b and 26b (see FIGS. 3 and 6) (step 102).

  Specifically, as shown in FIG. 8, when the unit number of the power line communication device 10A connected to the personal computer 2 is set to “01” by the number setting unit 16e (see FIG. 3), as shown in FIG. The number “01” is stored in the storage unit 16g of the power line communication device 10A by the control unit 16b. Further, when the unit number of the power line communication device 20A connected to the multifunction peripheral 1A is set to “02” by the number setting unit 26e (see FIG. 6), the unit number “02” is assigned to the power line communication device 20A by the control unit 26b. It is stored in the storage unit 26f. When the unit number of the power line communication device 20B connected to the multifunction device 1B is set to “03” by the number setting unit 26e, the unit number “03” is stored in the storage unit 26g of the power line communication device 20A by the control unit 26b. Is done. When the unit number of the power line communication device 20C connected to the shredder 3 is set to “04” by the number setting unit 26e, the unit number “04” is stored in the storage unit 26g of the power line communication device 20C by the control unit 26b. The

After step 102, power detection is performed by the power detection function units 16b1, 26b1 (see FIG. 3 or FIG. 6) in each of the power line communication devices 10A, 20A, 20B, 20C (step 103). Then, in the power line communication devices 20A, 20B, and 20C having the power shutoff function unit 26b3, each power detection function unit 26b1 determines whether or not a condition for shutting off the power is satisfied (step 104). This condition will be described later.
When the power detection function unit 26b1 determines that the power-off condition is not satisfied, the process returns to step 103 to continue the power detection. On the other hand, when it is determined that the condition for shutting off the power source is satisfied, the power detection function unit 26b1 outputs an instruction to shut off the power source to the power shutoff function unit 26b3. Receiving the instruction, the power shut-off function unit 26b3 operates the power switch unit 27 (see FIG. 6) to shut off the power (step 105). Of the power line communication devices 20A, 20B, and 20C, the device that cuts off the power communicates to the other power line communication devices 10A, 20A, 20B, and 20C through the power line communication function unit 26b2 (step 106). A series of processing ends.

For example, even if there is a device that has been forgotten to turn off the power switch, the power is cut off according to the above-described procedure. That is, when all the devices are not used, for example, both power monitoring and energy saving can be achieved at night or during consecutive holidays when the amount of power consumption increases by integration over time. In addition, when installing power line communication, new local area network wiring work is not required, and not only can it be installed easily, but it is also necessary to add power line communication devices individually. It can be said that it is excellent. In addition, since power line communication is provided separately from the local area network that handles image information data, it is easy to ensure information security.
For example, when a personal computer is used as a server, the CPU is heavy because it is always operated, and there is a useless function. Therefore, the personal computer consumes extra power. Further, when the power monitoring server is used, the power of the power monitoring server itself cannot be ignored.

FIG. 9 is a graph for explaining conditions for power interruption, where the vertical axis represents the power consumption value detected by the power detection function unit 26b1, and the horizontal axis represents time.
As a condition for shutting off the power in step 104 described above, there is a reduction in power consumption of the multifunction peripherals 1A and 1B and the shredder 3 shown in FIG. For example, in the MFP 1A of FIG. 8, the power detection by the power detection function unit 26b1 (see FIG. 6) of the power line communication device 20A has been a predetermined power consumption value W12 until then, as shown in FIG. When the power consumption value decreases to a predetermined power consumption value W11 (W11 <W12) at a certain point in time, it can be determined that the job of the multifunction peripheral 1A has been completed. Therefore, when a power-off command is issued from the office system, it is possible to avoid the power interruption during the job, and the power can be interrupted when the job is completed. In the above-described example, the case of the multifunction machine 1A has been described, but the same applies to the case of the shredder 3.

As described above, in addition to setting the power cutoff condition by the power consumption monitor, it may be set on the condition that the personal computer 2 is turned off. More specifically, when the power detection function unit 16b1 (see FIG. 3) in the power line communication device 10A of the personal computer 2 detects that the power consumption has decreased, it is determined that the power of the personal computer 2 has been turned off. Can do. Therefore, the power line communication device 10A notifies the other power line communication devices 20A, 20B, and 20C that the power of the personal computer 2 has been turned off by the power line communication function unit 16b2 (see FIG. 3). When it is detected that all personal computers (not shown) in the office area are powered off, the power line communication devices 20B and 20C determine that the power shut-off condition is satisfied, and shut off the power. 1B and the shredder 3 are turned off. However, it is also conceivable that only the power line communication device 20A is maintained in a power-on state, for example, by setting a power cutoff condition. This is to enable nighttime facsimile reception by the multifunction peripheral 1A connected to the power line communication device 20A.

In addition, power information is detected every predetermined time, such detection is continuously performed for a predetermined period, data is collected and stored in the storage units 16g and 26g, and a condition for power cutoff is set based on the data collection. It is also possible. For example, it is conceivable to detect a variation in power consumption from 8:00 am to 10:00 pm and to perform such detection continuously for one week to grasp the power consumption pattern. In order to perform such detection, the power line communication devices 10 and 20 are provided with a clock function.
Further, as a condition for turning on the power, when the personal computer in the office, for example, the personal computer 2 is turned on, the personal computer 2 is turned off with respect to the other power line communication devices 20A, 20B, and 20C. To be notified. Then, the power line communication devices 20B and 20C that have been shut off are turned on. Alternatively, it may be turned on when a predetermined time comes depending on the time, or a switch (not shown) for resetting the power supply cutoff may be provided in the power line communication device, and the user may turn it on.

Here, an application example of this embodiment will be described with reference to FIG.
FIG. 10 is a schematic configuration diagram illustrating a system using a power line communication device according to an application example of the first embodiment.
As shown in FIG. 10, the multifunction machine 1A and the personal computer 2 are connected to an existing network NW. As described above, the present embodiment can also be applied to the case where the multifunction peripheral 1A is used as a network printer of the personal computer 2.

[Second Embodiment]
FIG. 11 is a schematic configuration diagram illustrating a system using the power line communication device according to the second embodiment.
The basic configuration of the system shown in FIG. 11 is the same as the configuration shown in FIG. 1 as the first embodiment. That is, the multifunction devices 1A and 1B, the personal computer 2, and the copying machine 4 are supplied with power from the power line PL. A power line communication device 40 is interposed between the multifunction device 1A and the power line PL and between the multifunction device 1B and the power line PL. A power line communication device 30 is interposed between the personal computer 2 and the power line PL. Further, a power line communication device 20 is interposed between the copying machine 4 and the power line PL. The copying machine 4 here is an analog single function copying machine having no network function.

In addition, the power line communication device 40 is connected to the multifunction peripherals 1A and 1B by a general-purpose communication line (a line indicated by a thick line in the drawing) in addition to the power supply line. Similarly, the power line communication device 30 and the personal computer 2 are connected not only by a power supply line but also by a general-purpose communication line (a line indicated by a bold line in the drawing). This general-purpose communication line will be described later. More specifically, it can be considered that the multifunction peripherals 1A and 1B and the personal computer 2 are indirectly connected by a general-purpose communication line and a power supply line. That is, the multifunction peripherals 1A and 1B and the personal computer 2 can communicate with each other through the general-purpose communication line and the power supply line.
Since the power line communication device 20 is the same as that used in the first embodiment, the description of the configuration is omitted.

12A and 12B are diagrams illustrating the power line communication device 30, where FIG. 12A is an external perspective view, and FIG. 12B is a configuration diagram.
The basic configuration of the power line communication device 30 shown in FIG. 12 is the same as that of the power line communication device 10 shown in FIG. That is, the power line communication device 30 includes a device main body 31, a power supply path 32 (see FIG. 12B), a power cord 33, a power plug 34, and an outlet 35. These can have the same configuration as the device main body 11, the power supply path 12, the power cord 13, the power plug 14, and the outlet 15 in the power line communication device 10, respectively.

  Further, the power line communication device 30 includes a unit unit 36 (see FIG. 12B). The configuration of the unit part 36 will be described later. Further, the power line communication device 30 includes an external interface (second communication means, another communication means) 38 provided on the outer surface of the apparatus main body 31. The external interface 38 can be constituted by, for example, a USB (Universal Serial Bus) interface, a LAN (Local Area Network) interface, or the like. Therefore, the power line communication device 30 can exchange various information through the external interface 38.

FIG. 13 is a block diagram for explaining the configuration of the unit section 36.
The basic configuration of the unit section 36 shown in FIG. 13 is the same as that of the unit section 16 shown in FIG. That is, the unit unit 36 includes a clamp coil 36a, a DC power supply unit 36c, a filter 36d, a number setting unit 36e, an automatic setting unit 36f, and a storage unit 36g. These may have the same configuration as the clamp coil 16a, DC power supply unit 16c, filter 16d, number setting unit 16e, automatic setting unit 16f, and storage unit 16g in the unit unit 16, respectively.
The unit unit 36 includes a control unit 36b having a power detection function unit 36b1, a power line communication function unit 36b2, and a general-purpose communication function unit 36b4. The general-purpose communication function unit 36b4 here transmits and receives a predetermined signal to and from a device connected to the external interface 38 according to a predetermined protocol.

  14A and 14B are diagrams illustrating the power line communication device 40, where FIG. 14A is an external perspective view, and FIG. 14B is a configuration diagram. The basic configuration of the power line communication device 40 shown in FIG. 14 is the same as that of the power line communication device 10 shown in FIG. That is, the power line communication device 40 includes a device main body 41, a power supply path 42 (see FIG. 14B), a power cord 43, a power plug 44, and an outlet 45. These can have the same configuration as the device main body 11, the power supply path 12, the power cord 13, the power plug 14, and the outlet 15 in the power line communication device 10, respectively.

Moreover, the power line communication apparatus 40 is provided with the unit part 46 (refer FIG.14 (b)). The configuration of the unit part 46 will be described later. The power line communication device 40 also includes a power switch unit (switching means) 47 disposed in the power supply path 42 of the device main body 41. The power switch unit 47 is located in the power supply path 42 between the unit unit 46 and the outlet 45. The power switch unit 47 may have the same configuration as the power switch unit 27 shown in FIG.
In addition, the power line communication device 40 includes an external interface 48 provided on the outer surface of the device main body 41. As the external interface 48, one having the same configuration as the external interface 38 shown in FIG. 12 can be used.

FIG. 15 is a block diagram for explaining the configuration of the unit section 46.
The basic configuration of the unit section 46 shown in FIG. 15 is the same as that of the unit section 16 shown in FIG. That is, the unit unit 46 includes a clamp coil 46a, a DC power supply unit 46c, a filter 46d, a number setting unit 46e, an automatic setting unit 46f, and a storage unit 46g. These may have the same configuration as the clamp coil 16a, DC power supply unit 16c, filter 16d, number setting unit 16e, automatic setting unit 16f, and storage unit 16g in the unit unit 16, respectively.
The unit unit 46 includes a control unit 46b having a power detection function unit 46b1, a power line communication function unit 46b2, a power shut-off function unit 46b3, and a general-purpose communication function unit 46b4. As the power cutoff function unit 46b3 here, the same configuration as the power cutoff function unit 26b3 shown in FIG. 6 can be used. Further, the general-purpose communication function unit 46b4 described here can have the same configuration as the general-purpose communication function unit 36b4 shown in FIG.

FIG. 16 is a graph for explaining the relationship between the power consumption value and the mode. The vertical axis represents the power consumption value detected by the power detection function unit 46b1 (see FIG. 15), and the horizontal axis represents time. is there.
As shown in FIG. 16, for example, the multi-function device 1A (see FIG. 10) has three modes (states), that is, an operation mode (operation state), a stop mode (standby state), and an energy saving mode (energy saving state). Note that the energy saving mode here refers to a mode in which the MFP 1A is in a standby state with low power consumption.
The power consumption value is W23 in the operation mode, the power consumption value is W22 in the stop mode, and the power consumption value is W21 in the energy saving mode. W23>W22> W21. Note that W20 when the power is off. W21> W20.

  In such a case, when the power consumption value of the multifunction device 1A is detected by the power detection function unit 46b1, it is possible to determine what mode (state) the multifunction device 1A is currently in. In other words, the power consumption value detected by the power detection function unit 46b1 can be read as a mode by acquiring the power consumption value in each mode in advance.

  More specifically, when the power detection function unit 46b1 detects that the power consumption value of the multifunction device 1A is W23 from time t1 to time t2, the multifunction device 1A is in the operation mode during that time. Can be acquired. If the power detection function unit 46b1 detects that the power consumption value is W22 during the period from time t2 to time t3, information that the multifunction device 1A is in the stop mode can be acquired during that time. . Further, when it is detected that the power consumption value from time t3 to time t4 is W21, information that the multifunction device 1A is in the energy saving mode can be acquired during that time. Further, when it is detected that the power consumption value after time t4 is W20, it is possible to acquire information that the multifunction device 1A is in a power-off state.

  The mode information of the MFP 1A acquired in this way is stored in the storage unit 46g (see FIG. 15), or is stored in the other power line communication devices 20, 30, and 40 by the power line communication function unit 46b2 (see FIG. 15). Or sent. The reason that the configuration is managed not by the information of the power consumption value of the multifunction peripheral 1A but by the mode information is to facilitate the subsequent processing.

FIG. 17 is a flowchart illustrating a processing procedure for power shutdown using the power line communication device 20.
Here, the power cutoff command shown in FIG. 17 will be described. As an example, when a target value of power consumption in the system is determined and an integrated value obtained from communication results of a plurality of power line communication devices exceeds the target value, a power-off command is transmitted. . More specifically, in such a case, the power line communication device that has detected that the target value has been exceeded is transmitted to the power line communication device with a lower priority in accordance with a predetermined priority order for turning off the power. Is done. In addition, as a condition for canceling the power shutoff (starting power feeding), in the above case, when the integrated value enters the target, the power shutoff starts from the one with higher priority, contrary to the power shutoff command. If the level does not exceed the target even if the power is released, it can be considered to release the power shutdown.

When the power line communication function unit 26b2 (see FIG. 6) receives such a power-off command from another power line communication device 30 (see FIG. 11) (step 201), the power detection function unit 26b1 (see FIG. 6) The power consumption of the copying machine 4 is detected (step 202). As a result of detection, as described with reference to FIG. 16, a value obtained by replacing the power consumption value with the mode is acquired. Then, it is determined whether or not the copying machine 4 is in the operation mode (step 203). If it is an operation mode, it will return to step 202 and will perform electric power detection again. When not in the operation mode, for example, in the stop mode or the energy saving mode, the power shut-off function unit 26b3 (see FIG. 6) operates the power switch unit 27 (see FIG. 6) to shut off the power (step 204). Thereafter, the power line communication function unit 26b2 communicates to the other power line communication device 30 that the power supply has been shut off (step 205), and ends the series of processes.
As described above, when the power is cut off by the operation of the power switch unit 27, the copying machine 4 does not consume power. Even if the copying machine 4 has the energy saving mode, it is almost unused at night. When the copier 4 is left in an unused state without being turned off, the power consumption is reduced by shifting to the energy saving mode. However, even in the energy saving mode, a little power is consumed. . Therefore, when the time when the copying machine 4 is not used at all for a long time continues for a long time, it is important to turn off the power of the imaging device in order to save energy.

FIG. 18 is a flowchart illustrating a processing procedure for power shutdown using the power line communication device 40. 18 is the same as that described with reference to FIG. 17, and therefore the description thereof is omitted.
As shown in FIG. 18, when the power line communication function unit 46b2 (see FIG. 15) receives a power-off command from another power line communication device 30 (see FIG. 11) (step 301), the power detection function unit 46b1 (FIG. 15). (See) detects the power consumption of the multifunction peripheral 1A (see FIG. 11) (step 302). Then, it is determined whether or not the power consumption is zero, that is, whether or not the power is already turned off (step 303). When it is determined that the power is not already turned off, the general-purpose communication function unit 46b4 (see FIG. 15) turns off the power via the external interface 48 (see FIG. 14) for the multifunction device 1A that is a power consuming device. A command is transmitted (step 304). Thereafter, the power detection function unit 46b1 (see FIG. 15) detects the power consumption of the multifunction device 1A (step 305), and determines whether the power of the multifunction device 1A is turned off (step 306).

  Here, when the MFP 1A (see FIG. 11) receives the power-off command transmitted in step 304, if the print command (job) is being executed, the MFP 1A immediately turns off the power. Without waiting for the print command to end. That is, the multifunction device 1A performs power-off processing itself after the print command is completed, and turns off the power.

  On the other hand, when the power line communication device 40 determines in step 306 that the power of the multifunction peripheral 1A is not turned off, the power line communication device 40 returns to step 305 and continues the power detection. When it is determined that the power of the multifunction device 1A has been turned off, the power shut-off function unit 46b3 (see FIG. 15) operates the power switch unit 47 (see FIG. 14) to shut off the power (step 307). Thereafter, the power line communication function unit 46b2 communicates to the other power line communication device 30 that the power supply has been shut off (step 308), and ends the series of processes.

An application example of this embodiment will be described with reference to FIG.
FIG. 19 is a schematic configuration diagram illustrating a system using a power line communication device according to an application example of the second embodiment. Description of the contents already described in FIG. 10 is omitted.
As shown in FIG. 19, the multifunction peripherals 1A and 1B and the personal computer 2 are connected to an existing network NW. Therefore, the multifunction peripherals 1A and 1B can transmit various kinds of energy saving information to the personal computer 2 through the network NW. The personal computer 2 stores various received energy saving information. The personal computer 2 may be configured to display various received energy saving information on the screen.

  As described above, a configuration that provides a power management / control system for the entire office is adopted. The configuration described above can also be applied to energy saving / power saving management.

  Here, the various processes shown in the above-described embodiment are application programs executed by the control units 16b, 26b, 36b, and 46b using the storage units 16g, 26g, 36g, and 46g, which are working memories. Realized. This application program is provided in the state installed in the apparatus when the power line communication apparatus 10, 20, 30, 40 is provided to a customer (including a user). A form in which a program to be executed by 10, 20, 30, 40 is provided on a storage medium or the like stored in a readable manner by the power line communication devices 10, 20, 30, 40 is conceivable. As this storage medium, for example, a CD-ROM medium or the like corresponds, and a program is read and executed by a CD-ROM reader (not shown) or the like. These programs may be provided via the power line PL by a program transmission device (not shown), for example. Further, the power line communication devices 30 and 40 may be provided through the external interfaces 38 and 48.

It is a schematic block diagram explaining the system using the power line communication apparatus which concerns on 1st Embodiment. It is a figure explaining a power line communication apparatus. It is a block diagram for demonstrating the structure of the unit part in the power line communication apparatus of FIG. It is a block diagram of the memory | storage part in the unit part of FIG. It is a figure explaining a power line communication apparatus. It is a block diagram for demonstrating the structure of the unit part in the power line communication apparatus of FIG. It is a flowchart which shows the process sequence about the power supply cutoff using a power line communication apparatus. It is a figure for demonstrating the setting and storage of a unit number. It is a graph for demonstrating the conditions of electric power interruption. It is a schematic block diagram explaining the system using the power line communication apparatus which concerns on the application example of 1st Embodiment. It is a schematic block diagram explaining the system using the power line communication apparatus which concerns on 2nd Embodiment. It is a figure explaining a power line communication apparatus. It is a block diagram for demonstrating the structure of the unit part in the power line communication apparatus of FIG. It is a figure explaining a power line communication apparatus. It is a block diagram for demonstrating the structure of the unit part in the power line communication apparatus of FIG. It is a graph for demonstrating the relationship between a power consumption value and a mode. It is a flowchart which shows the process sequence about the power supply cutoff using a power line communication apparatus. It is a flowchart which shows the process sequence about the power supply cutoff using a power line communication apparatus. It is a schematic block diagram explaining the system using the power line communication apparatus which concerns on the application example of 2nd Embodiment.

Explanation of symbols

10, 20, 30, 40 ... power line communication device, 11, 21, 31, 41 ... device main body, 14, 24, 34, 44 ... power plug, PL ... power line, 15, 25, 35, 45 ... outlet, 16, 26, 36, 46 ... unit part, 16b, 26b, 36b, 46b ... control part, 16e, 26e, 36e, 46e ... number setting part, 16f, 26f, 36f, 46f ... automatic setting part, 16g, 26g, 36g, 46g: storage unit, 27, 47 ... power switch unit, 38, 48 ... external interface

Claims (22)

  1. A power supply means for supplying power from the power line to a device capable of state management ;
    Power information detection means for detecting the state of the device corresponding to the power fed from the power feeding means as power information relating to the power of the equipment fed by the power feeding means ;
    Storage means for storing identification information for identifying itself ;
    A power line communication means for communicating power line in power line by using the identification information of the power information detected stored in said memory means by said power information detection means,
    Switching means for switching the presence or absence of power supply to the device by the power supply means based on the power information detected by the power information detection means or information acquired from another power line communication device by the power line communication means ;
    A power line communication device.
  2. Further comprising setting means for setting identification information used in communication by the power line communication means,
    The power line communication apparatus according to claim 1, wherein the storage unit stores identification information set by the setting unit.
  3. The setting unit includes a manual setting unit configured to be able to set identification information, and an automatic setting unit that sets identification information using information acquired from another power line communication device by the power line communication unit. ,
    3. The power line communication apparatus according to claim 2, wherein the storage unit replaces the already stored identification information with new identification information set by the automatic setting unit.
  4.   2. The power line communication apparatus according to claim 1, wherein the power information detection unit detects power information for each preset time and stores the result in the storage unit.
  5.   Based on the power information acquired from the other power line communication device by the power line communication device, the power line communication device instructs the other power line communication device to cut off the power supply to the device powered by the other power line communication device. The power line communication apparatus according to claim 1, wherein the transmission is performed.
  6.   When a power supply cutoff instruction is received from another power line communication device via the power line communication unit, the power supply to the device is cut off based on the power information by the power information detection unit of the device to which power is supplied. The power line communication apparatus according to claim 1.
  7. The power line communication device according to claim 1, wherein the power line communication unit communicates with another power line communication device that the presence or absence of power supply to the device has been switched by the switching unit.
  8. The power line communication apparatus according to claim 1, further comprising another communication unit that performs communication with a device fed by the power supply unit using a communication medium different from the power line communication unit.
  9. According to claim 8, characterized in that it is configured to be controlled with respect to the power of the device that performs communication according to an instruction in accordance with, the other communication means from another power line communication apparatus that the power line communication unit accepted Power line communication equipment.
  10. 9. The power line communication apparatus according to claim 8 , further comprising a setting unit configured to set information input through the another communication unit as identification information stored in the storage unit.
  11. A plurality of power supply devices having power supply means for supplying power from a power line to a device capable of state management , and having power line communication means for performing power line communication with each other using the power line as a communication medium ;
    Wherein a is each of the plurality of power supply devices, the power information detection means for detecting the state of the device corresponding to the power fed as electric power information about power device to be powered by the power supply device,
    Each of the plurality of power supply apparatuses has storage means for storing identification information for identifying the power supply apparatus ,
    Each of the plurality of power supply devices has a switching means for switching presence / absence of power supply to the device by the power supply means ,
    Including
    The power line communication unit communicates power line in power line by using the identification information of the power information detected stored in said memory means by said power information detection means,
    The switching unit switches presence / absence of power supply to the device by the power supply unit based on power information detected by the power information detection unit or information acquired from another power line communication device by the power line communication unit. Power supply system.
  12. The power supply system according to claim 11, wherein the power information detection unit detects power information for each preset time and stores the result in the storage unit.
  13. 12. The power feeding system according to claim 11 , wherein each of the plurality of power feeding devices communicates power information detected by the power information detecting unit with another power feeding device via the power line by the power line communication unit. .
  14.   The each of the plurality of power supply devices transmits an instruction to interrupt power supply to the device based on the power information acquired from the other power supply devices. Power supply system.
  15.   Each of the plurality of power supply devices, when receiving a power supply cutoff instruction from another power supply device, cuts off the power supply to the device based on power information by the power information detection unit of the device to which the power is supplied. The power feeding system according to claim 13.
  16. 12. The power feeding system according to claim 11 , wherein each of the plurality of power feeding devices further includes another communication unit that performs communication with a device to be fed using a communication medium different from the power line communication unit.
  17.   The power feeding system according to claim 16, wherein devices that are fed by different power feeding devices among the plurality of power feeding devices can communicate with each other by the power line communication unit and the another communication unit.
  18. The power feeding system according to claim 16, further comprising setting means configured to set information inputted through the another communication means as identification information stored in the storage means.
  19. 12. The power feeding system according to claim 11, wherein each of the plurality of power feeding apparatuses communicates with another power feeding apparatus that the presence or absence of power feeding to the device is switched by the switching unit.
  20. In a computer device mounted on a power supply device that supplies power from a power line to a device capable of state management ,
    A detection function of detecting a state of the device corresponding to the power fed from the feeding device as a power information related to the power of the device to be powered by the power supply device,
    A storage function for storing identification information for identifying the power supply device;
    A power line communication function for performing power line communication with another power supply device using a power line with the power information detected by the detection function using the identification information stored by the storage function ;
    A switching function for switching the presence or absence of power supply to the device based on the power information detected by the detection function or information acquired from another power supply device by the power line communication function;
    A program that realizes
  21.   21. The program according to claim 20, further comprising a setting function for setting identification information using information acquired from another power supply apparatus by the power line communication function.
  22. The program according to claim 20, wherein the detection function detects power information every preset time and stores the result in the storage function .
JP2006254986A 2006-09-20 2006-09-20 Power line communication device, power supply system, and program Active JP4039451B1 (en)

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JP2006254986A JP4039451B1 (en) 2006-09-20 2006-09-20 Power line communication device, power supply system, and program
US11/727,513 US8050803B2 (en) 2006-09-20 2007-03-27 Power feeding system, electrical apparatus, power feeding apparatus, and computer readable storage medium
US11/727,510 US20080080625A1 (en) 2006-09-20 2007-03-27 Power line communication apparatus, power feeding system, power feeding control method and computer readable medium
EP07006874.7A EP1903654A3 (en) 2006-09-20 2007-04-02 Power line communication apparatus, power feeding system, power feeding control method and computer readable medium
EP07006875.4A EP1903655A3 (en) 2006-09-20 2007-04-02 Power feeding system, electrical apparatus, power feeding apparatus, and computer readable storage medium
CN 200710096398 CN101150332A (en) 2006-09-20 2007-04-17 Power line communication apparatus, power feeding system, control method and computer readable medium
CN 200710096395 CN101159386B (en) 2006-09-20 2007-04-17 Power feeding system, electrical apparatus, power feeding apparatus, and computer readable storage medium

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JP5338120B2 (en) * 2008-04-15 2013-11-13 富士ゼロックス株式会社 Hub device and program
JP5370651B2 (en) * 2009-03-25 2013-12-18 富士ゼロックス株式会社 Power control apparatus, power control system, and power control program
JP5604089B2 (en) * 2009-11-30 2014-10-08 京セラ株式会社 Power consumption measurement system, control device, and power consumption measurement method
CN102290816A (en) * 2010-06-18 2011-12-21 黄金富 Method of regulating power consumption of electric equipment according to load of electrical power system and corresponding system and equipment
US8965717B2 (en) 2010-07-16 2015-02-24 Powertech Industrial Co., Ltd. Carbon emission tracker and tracking system
CN102158257A (en) * 2011-01-17 2011-08-17 华为终端有限公司 Energy-saving method, equipment and system for PLC (power line carrier) networking equipment
JP2013165448A (en) * 2012-02-13 2013-08-22 Sony Corp Appliance management apparatus and appliance management method
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