JP2013033318A - Energy saving support device, energy saving support method and energy saving support program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an energy saving support device for clearly classifying the respective areas of peak electric energy, base electric energy and regular electric energy on a load duration curve, and for accurately and easily discriminating an area where power consumption is excessive.SOLUTION: A load duration curve obtained by successively connecting the vertices of bar graphs created by rearranging the power consumption of an energy saving object in each unit time on a selected measurement date in the descending order is created by a load duration curve creation part 32, and the load duration curve is analyzed. Respective areas such as a peak electric energy area during the use of equipment consuming a power of a certain power threshold or more in use, a regular electric energy area during the use of equipment consuming a power of less than the power threshold in use, and a base electric energy area only for equipment consuming a power all the time are classified by an area discrimination part 33. Which area has excessive power consumption is determined on the basis of whether or not the rate of the area-categorized total power consumption of each area to the whole power consumption of the energy saving object exceeds the threshold of each area determined for each season by an excessive power consumption area discrimination part 34.

Description

  The present invention relates to an energy saving support device, an energy saving support method, and an energy saving support program, and in particular, for energy saving support, in order to identify a user's power usage tendency, every unit time (for example, 1 minute) per day. Using the load duration curve that arranges the measured power consumption of the entire load equipment in descending order, the peak power consumption area, the normal power consumption area, and the base power consumption area are distinguished from each other. The present invention relates to a technique for discriminating an area where power is consumed.

  In recent years, the momentum to promote energy saving, especially power saving, has been increasing. Along with this, various mechanisms for supporting power saving have been proposed. For example, in Japanese Patent Application Laid-Open No. 2010-176373, “Energy Saving Support System and Energy Saving Support Program” of Patent Document 1, the user (electric power consumer) is kept motivated for energy saving, particularly power saving measures, and continuously performs energy saving actions. In order to implement this, identify load devices that are expected to reduce power consumption based on periodic measurement results of power consumption of various load devices used by the user, and reduce power consumption of the load devices. A mechanism for periodically displaying a corresponding energy saving action plan on the terminal of the user is proposed.

  More specifically, Patent Document 1 proposes the following mechanism. First, the type of various load devices used by the user becomes a large power consumption (hereinafter referred to as “peak power”) that is temporarily higher than a peak power threshold value temporarily set during use, such as a microwave oven or a dryer. 1 device, such as a standby power supply for a TV, a router device, or a heated toilet seat, a second device that consumes constant power (hereinafter referred to as “base power”) regardless of the user's daily activities, such as a lighting or air conditioner In addition, although the amount of power consumption is less than the peak power threshold according to the life of the user, power consumption (hereinafter referred to as “regular power”) will continue to be consumed while each is being used. It is classified into three types of three devices and registered in advance.

  Then, the total power consumption of the entire load device is measured by the power measuring device arranged on the distribution board, etc., and the normal operation state device is separately arranged by the individual power measuring device individually arranged on the refrigerator or other device that is always in the operation state. The individual power consumption is periodically measured and accumulated every predetermined unit time (for example, every minute).

  After that, based on the periodic measurement results of the total power consumption of the entire load device and the individual power consumption of the constantly operating device over a predetermined period (for example, one week), first, the total power consumption The power consumption of the energy saving target obtained by subtracting the individual power consumption from is calculated, the average value at the same time of each day is calculated for each unit time for the power consumption of the energy saving target, and the average value is 1 in descending order. It consists of an envelope graph in which the vertices of the bar graphs of the power consumption rearranged in the order of the labels (that is, the order of the average power consumption per unit time in descending order) are sequentially attached. Create a load duration curve. Here, the area of the region covered by the load duration curve indicates the entire amount of power consumption targeted for energy saving.

  Next, a power consumption pattern indicating a user's power usage tendency is determined by using the created load duration curve. In other words, the total power consumption subject to energy savings in terms of the power consumption by region for each area indicated by the area of each of the “peak power amount”, “base power amount”, and “regular power amount” on the created load duration curve By determining the percentage of power consumption, it can be determined whether the user's power consumption pattern is “peak power excessive”, “base power excessive”, or “regular power excessive” .

  Based on the determined power consumption pattern of the user, the load device with excessive power consumption is identified from among the first device, the second device, and the third device, and energy saving prepared in advance The action plan is presented to the user.

  At this time, by obtaining an answer from the user as to whether or not the energy saving action plan can be executed, more specific advice information for the energy saving action is provided for those for which an answer indicating that the action is possible is obtained. After that, the implementation status of energy conservation actions will be followed based on the regular measurement results of power consumption.

  Among the load devices used by users, there are so-called “seasonal home appliances” in which the season to be used is limited, such as an electric kotatsu, an electric carpet, and an electric fan. For such “seasonal home appliances”, an individual power meter is provided for each, and when the power consumption of “seasonal home appliances” is excessive, the first device, the second device, The energy saving action plan is presented to the user in preference to the third device.

  By periodically performing energy saving support operations like this, a mechanism is provided that prevents the user from feeling the difficulty of energy saving behavior and allows the user to continue his willingness to save energy.

JP 2010-176373 A

  However, as in Patent Document 1, even if an attempt is made to determine a power consumption pattern indicating a user's power usage tendency using a load duration curve for energy saving support, the “peak power amount” on the created load duration curve is used. Specific implementation means for accurately classifying the respective areas of “base electric energy” and “ordinary electric energy” remain unclear and cannot be put into practical use.

  Furthermore, the use of individual load devices by users varies greatly depending not only on the time of day but also on the season, even during normal use, so it is determined whether the power consumption is excessive. It is not easy to do so, and only the technique described in the above-mentioned Patent Document 1 is excessive for each region of “peak electric energy”, “base electric energy”, and “regular electric energy” regardless of the season. It is not possible to accurately determine whether or not the amount of power consumption has been reduced.

  Moreover, in patent document 1, in order to preferentially perform the energy saving operation | movement with respect to a "seasonal household appliance", each seasonal household appliance requires a separate electric power measuring device, and the complexity and cost increase as an energy saving assistance apparatus are carried out. There is also the problem of being invited.

  The present invention has been made in view of such circumstances, and clearly classifies each region of “peak power amount”, “base power amount”, and “regular power amount” on the load duration curve as described above. And providing an energy saving support device, an energy saving support method, and an energy saving support program that can more accurately and easily determine whether or not the power consumption is excessive in each area. That is the purpose.

  The present invention comprises the following technical means in order to solve the above-mentioned problems.

  The first technical means periodically measures and accumulates the power consumption of the load device used by the user every predetermined unit time, and stores the accumulated power consumption every time a predetermined period of time elapses. By analyzing the user's power usage trend based on the calculation results of the above, it is possible to identify load devices that are expected to reduce power consumption and provide users with energy-saving action plans corresponding to the reduction of power consumption of the load devices An energy-saving support device having a mechanism for extracting power consumption that is a target for energy-saving from power consumption that is appropriately selected from the accumulated power consumption for each unit time, and for consumption Load persistence creates a load persistence curve consisting of an envelope graph that connects the vertices of the bar graph of power consumption created by sorting in descending order of energy consumption Based on the analysis result of the load duration curve created by the line creation unit and the load duration curve creation unit, on the load duration curve, among the load devices, power consumption equal to or higher than a peak power threshold determined in advance The peak power amount area using any device that becomes the amount, the normal use using any device that will continue to consume a certain amount of power that is less than the peak power threshold when used An area discriminating unit that discriminates three areas: an electric energy area and a base electric energy area that is an electric power consumption amount of only a device that always consumes electric power regardless of a user's daily behavior pattern; The total power consumption for each region of the peak power amount region, the normal power amount region, and the base power amount region on the load duration curve determined in the unit is The ratio of the total power consumption subject to energy saving is calculated as the power consumption ratio for each area of each area, and the calculated power consumption ratio for each area for each area is determined for each season for determining the excessive power consumption type. An excessive power consumption region determination unit that determines whether or not the power consumption amount is excessive in any of the regions based on whether or not a predetermined threshold value is exceeded for each region; It is characterized by being configured.

  The second technical means is the energy saving support apparatus according to the first technical means, wherein each of the peak power amount region, the normal power amount region, and the base power amount region is determined by the excessive power consumption region determining unit. In any one of the plurality of areas, when the power consumption ratio by area exceeds the threshold value of each corresponding area, the power consumption ratio by area and the corresponding area for each of the corresponding areas. The degree of deviation from each of the threshold values is compared, and a region having the largest degree of deviation from the threshold value is preferentially determined as a region where the amount of power consumption is excessive.

  The third technical means measures and accumulates the power consumption of the load device used by the user periodically every predetermined unit time, and stores the accumulated power consumption every time a predetermined period of time elapses. By analyzing the user's power usage trend based on the calculation results of the above, it is possible to identify load devices that are expected to reduce power consumption and provide users with energy-saving action plans corresponding to the reduction of power consumption of the load devices An energy saving support method having a mechanism for extracting power consumption that is a target of energy saving from power consumption of any day appropriately selected from the accumulated power consumption per unit time, Load persistence creates a load persistence curve consisting of an envelope graph that connects the vertices of the bar graph of power consumption created by sorting in descending order of energy consumption Based on the analysis result of the load duration curve created in the line creation step and the load duration curve creation step, on the load duration curve, among the load devices, power consumption equal to or higher than a peak power threshold determined in advance The peak power amount area using any device that becomes the amount, the normal use using any device that will continue to consume a certain amount of power that is less than the peak power threshold when used An area determination step for determining three areas: an electric energy area, and a base electric energy area that is a power consumption amount of only a device that always consumes electric power regardless of a user's daily behavior pattern, and the area determination Each of the peak power amount region, the normal power amount region, and the base power amount region on the load duration curve determined in step The ratio of the total power consumption by region to the total power consumption subject to energy saving is calculated as the power consumption ratio by region for each region, and the power consumption ratio by region for each calculated region is excessive power consumption. Excessive power consumption that determines whether the amount of power consumption is excessive in any region based on whether a predetermined threshold is exceeded for each region for each season for type determination And at least a region discriminating step.

  The fourth technical means is the energy saving support method according to the third technical means, wherein each of the peak power amount region, the normal power amount region, and the base power amount region is determined in the excessive power consumption region determining step. In any one of the plurality of areas, when the power consumption ratio by area exceeds the threshold value of each corresponding area, the power consumption ratio by area and the corresponding area for each of the corresponding areas. The degree of deviation from each of the threshold values is compared, and a region having the largest degree of deviation from the threshold value is preferentially determined as a region where the amount of power consumption is excessive.

  According to a fifth technical means, in the energy saving support method according to the third or fourth technical means, the threshold used for determining the excessive power consumption type of each area in the excessive power consumption area determining step is: It is characterized in that it is determined appropriately for each season, divided into three, which are arbitrarily defined in the summer, winter, and intermediate periods corresponding to spring or autumn.

  Sixth technical means, in the energy saving support method according to the fifth technical means, when the season is summer, the peak power amount region, the normal power amount region, and the base power amount region, respectively, Threshold values are defined as 30%, 55%, and 15%, and when the season is an intermediate period, the threshold values for each of the peak power amount region, the normal power amount region, and the base power amount region are set to 30% 55% and 15%, and when the season is winter, the threshold values of the peak power amount region, the normal power amount region, and the base power amount region are set to 10%, 43%, and 47%, respectively. It is characterized by defining.

In the energy saving support method according to any one of the third to sixth technical means, when a seventh technical means determines the peak power amount region on the load duration curve in the region determining step, The label indicating the position of the boundary between the peak power amount region and the normal power amount region on the load duration curve is L ₁ , the power consumption at the position of the label L ₁ is a (L ₁ ), and the load The maximum power consumption at the head position on the sustain curve is γ, the label indicating the center position between the head position and the final position on the load sustain curve is L ₂ , and the power consumption at the position of the label L ₂ Is a (L ₂ ),
a (L ₁ ) = γ−0.8 {γ−a (L ₂ )}
Wherein the relationship is determined to area an area corresponding to the peak electric energy region between the first position to become γ label L ₁ and the maximum power consumption of positions established.

  An eighth technical means is an energy saving support program in which the energy saving support method according to any one of the third to seventh technical means is implemented as a program executable by a computer.

  According to the energy saving support device, the energy saving support method, and the energy saving support program of the present invention, the “peak power amount” and the “ordinary power consumption” on the load duration curve created based on the measurement result of the power consumption amount per unit time of the user. ”And“ Base energy ”: A specific mechanism that clearly classifies each area based on the conditional expression that can analyze the shape of the load persistence curve, and whether power consumption is excessive in each area Since a specific mechanism for determining whether or not is determined using a threshold value for each region predetermined for each season is employed, the following effects can be achieved. Note that it is desirable that the conditional expression and the threshold value be based on a value that is determined to be appropriate based on the results of a demonstration experiment performed by monitors of a sufficient number of users (for example, 20 people) as the number of samples.

  First, using the load persistence curve, the user's power consumption tendency has become one of the types of “peak power excessive”, “base power excessive”, or “regular power excessive”. Even if the power consumption varies depending on the season, it can be determined accurately and simply, and an accurate energy saving action plan can be presented to the user.

  Secondly, since it is determined using a predetermined threshold value for each season, it is not necessary to provide a separate power measuring device for each seasonal home appliance as in the conventional technology, and it can be realized economically. In addition, since it is not necessary to perform complicated determination processing for energy saving support, it is possible to promptly present an energy saving action plan to the user.

  Third, even if the user's power consumption tendency corresponds to a plurality of types of “peak power amount excessively large”, “base electric energy excessively large”, and “normal electric energy excessively large”, Considering the degree of divergence, it is also possible to introduce a mechanism to select the type that should preferentially be applied, and the user's power consumption tendency is “over peak power amount”, “overly large base power amount” It is possible to present a more appropriate energy saving action plan to the user without being biased to any of “oversized common power”.

It is an apparatus block diagram which shows an example of the block configuration of the energy saving assistance apparatus which concerns on this invention. It is a table which shows the example of a registration of the power consumption amount registration table of FIG. It is a table which shows the example of a registration of the season and time slot | zone registration table of FIG. It is a flowchart explaining an example of operation | movement of the energy saving assistance apparatus of FIG. It is explanatory drawing which shows an example of the load continuation curve created based on the power consumption measured for every predetermined unit time. Excessive power consumption type for which the threshold for determining whether or not it is the excessive power consumption type in each area of “peak energy”, “regular energy”, and “base energy” is registered for each season It is a table which shows an example of the determination threshold value registration table.

  Hereinafter, an example of a preferred embodiment of an energy saving support device, an energy saving support method, and an energy saving support program according to the present invention will be described in detail with reference to the drawings. In the following description, the energy saving support apparatus and the energy saving support method according to the present invention will be described. However, the energy saving support method may be implemented as an energy saving support program that can be executed by a computer. Needless to say, the support program may be recorded on a computer-readable recording medium.

(Features of the present invention)
Prior to the description of the embodiments of the present invention, an outline of the features of the present invention will be described first. As in the case of Patent Document 1, the present invention attaches labels that sequentially increment from 1 for the power consumption of energy saving targets obtained by subtracting the individual power consumption from the total power consumption. By using a load duration curve consisting of an envelope graph in which the vertices of the energy consumption bar graphs are arranged in order, the user's power consumption tendency is “ ”,“ Excessive base electric energy ”,“ Excessive electric power consumption ”, and presenting energy saving action plan according to the determination result to the user. Energy-saving support device, energy-saving support method and energy-saving support for maintaining the willingness to save energy and continuously implementing energy-saving actions It is intended to provide the program.

  Here, in the present invention, the above-described problem in Patent Document 1 is solved, and based on the analysis result of the load duration curve, the shape of the load duration curve can be easily grasped. In addition to defining specific conditional expressions that can clearly categorize the “peak energy”, “regular energy”, and “base energy” areas on the sustain curve, the power consumption in each area By pre-determining the threshold value for each region for determining whether or not it is excessive as a value that takes into account that the user's normal power consumption trend varies from season to season, the user's power consumption trend Regardless of the season, it is more accurate and simpler, and it is one of the types of “peak energy excessive”, “base energy excessive” and “regular energy excessive”. They are the key features that make it possible to determine. The conditional expression and the threshold value are based on a reasonable judgment based on the result of a demonstration experiment performed by monitors of a sufficient number of users (for example, 20 people) as the number of samples.

More specifically, for the energy consumption targeted for energy saving, the first label of each label attached to the load duration curve, that is, label 1 (that is, of each measurement time at which the power consumption is measured per unit time, Just in the middle of the label associated with the measurement time at which the largest amount of power consumption was measured) and the last label, eg, label L ₄ (ie, the label associated with the measurement time at which the smallest amount of power consumption was measured). The amount of power corresponding to 80% of the difference power amount α obtained by subtracting the power consumption amount at the label L _2, for example, the label L ₂ (center position power consumption amount a (L ₂ )) from the maximum power consumption amount γ at the top label 1 is the position of the label for instance the label L ₁ that is a small amount of power consumption than the maximum power consumption gamma, on the load duration curve as "peak power amount" the region of the "usual amount of power" Determining as a position to divide.

That is, for the label for example the label _{L 2} is positioned at the center, a final label (1/2)
L ₂ = L _4/2
Given in. Further, if the power consumption at the center, for example, the label L _2, that is, the power consumption at the central position is expressed as a (L ₂ ), the power consumption at the central position a (L ₂ ) is the maximum consumption at the first label 1. The difference power amount α subtracted from the power amount γ is
α = γ-a (L ₂ )
Given in.

Therefore, the label of the position that divides the region of “peak power amount” and “ordinary power amount”, for example, the position of the label L ₁ , is that the power consumption amount a (L ₁ ) is β = γ−0.8α = γ−0. .8 {γ-a (L ₂ )}
Is identified as a position equal to.

In addition, the position where the areas of “normal power consumption” and “base power consumption” are separated on the load duration curve is the inactivity time of the user that is maintained substantially constant as the smallest power consumption (base power consumption) ( it may be the position of the label for instance the label L ₃ corresponds to bedtime to shift to sleep).

By using such conditional expression of nuclear, area of the region from the beginning of the label 1 to the position of the label L ₁ on the load duration curve, the position of the label L ₁ to the position of the label L _3, from the position of the label L ₃ the region to the position of the last label L _4, "peak power amount", "usual amount of power", it is possible to specifically clearly classified as "base electric power amount" each region.

  Also, an excessive power consumption type determination threshold for determining whether or not an excessive amount of power is consumed in each of the “peak energy”, “normal energy”, and “base energy” areas on the load duration curve. Corresponds to each area for each season (specifically, three seasons, summer, winter, and mid-term equivalent to spring or autumn), which is defined as a period arbitrarily determined according to the user. In addition, it is determined in advance based on the monitoring results of a sufficient number of samples.

  Specifically, the ratio of total power consumption by region, which is the sum of power consumption in each of the “peak power”, “regular power”, and “base power” ratios to the total power consumption targeted for energy saving Is calculated as an area-specific power consumption ratio of each area, based on whether or not it exceeds an excessive power consumption type determination threshold defined in advance for each area for each season for determination of excessive power consumption type, It is determined whether or not the power consumption amount is excessive in each of the “peak power amount”, “ordinary power amount”, and “base power amount” regions.

  By using the excessive power consumption type determination threshold for each season, areas with excessive power consumption can be accurately and easily determined regardless of the season. Since there is no need to place a separate power measuring device as in the conventional technology for each seasonal home appliance that depends on the season, such as kotatsu and electric carpet, it is possible to reduce the cost of energy-saving support equipment It becomes possible.

(Configuration example of embodiment)
Next, a configuration example of the energy saving support device according to the present invention will be described with reference to FIG. FIG. 1 is an apparatus configuration diagram illustrating an example of a block configuration of an energy saving support apparatus according to the present invention. When performing energy saving support related to power consumption, a unit time (for example, to grasp a user's power consumption tendency) Divide each area of “peak energy”, “normal energy” and “base energy” on the load duration curve created based on the measurement result of energy consumption every minute), and consumption in each area Only the parts related to determining whether or not the amount of electric power is excessive are extracted and shown.

  An energy saving support apparatus 100 shown in FIG. 1 includes a power consumption management unit 10 for registering and managing a user's power consumption, a season / time zone management unit 20 for registering and managing a season and a time zone of a day, and a user. A power consumption type discriminating unit 30 for discriminating a tendency of power consumption, and an energy saving behavior managing unit 40 for prompting the user to perform an action for energy saving.

  The power consumption amount management unit 10 includes at least a power consumption measurement unit 11, a power consumption registration unit 12, a power consumption extraction unit 13, and a power consumption amount registration table 14. The power consumption measuring unit 11 periodically measures the user's power consumption at predetermined time intervals (for example, 1 minute intervals). The power consumption registration unit 12 sequentially registers the power consumption regularly measured by the power consumption measurement unit 11 in the power consumption registration table 14. The power consumption extraction unit 13 extracts the power consumption amount at an arbitrary date and time designated from the power consumption amount registration table 14.

  A registration example of the power consumption amount registration table 14 is shown in FIG. The power consumption amount registration table 14 periodically measures the power consumption amount of each residence at a predetermined time interval by a power measuring device installed on a distribution board or the like for each residence of a user (electric power consumer). 2 is a table to be registered together with the measurement date and time. In the registration example shown in FIG. 2, the power consumption of the entire residence of a certain user is sequentially calculated every minute as a unit time from 14:08 on August 13, 2010. An example of registration is shown.

  The season / time zone management unit 20 includes at least a season / time zone registration unit 21, a season discrimination unit 22, a time zone discrimination unit 23, and a season / time zone registration table 24. The season / time zone registration unit 21 appropriately defines the season and time zone for each user in the season / time zone registration table 24 and registers them in advance. The season determination unit 22 determines which season the measurement date and time of the power consumption extracted from the power consumption registration table 14 by the power consumption extraction unit 13 is based on the season information registered in the season / time zone registration table 24. Is determined. Based on the time zone information registered in the season / time zone registration table 24, the time zone determination unit 23 determines which time the measurement date and time of the power consumption extracted from the power consumption registration table 14 by the power consumption extraction unit 13 is. Determine if it is a belt.

  A registration example of the season / time zone registration table 24 is shown in FIG. The season registration table 24a in FIG. 3A registers the definition of the season, and if the date when the power consumption is measured is July, August, or September, it is “summer”, and the power consumption If the measured date is December, January, or February, it is “winter”, and the date when the power consumption is measured is March, April, May, June, 10 other than those months. In the case of month and November, an example is defined in which “intermediate period (spring / autumn)” is defined. In addition, the definition of a season can be set and registered differently depending on the environment where the user (electric power consumer) lives.

  In addition, the time zone registration table 24b in FIG. 3B registers the definition of six time zones, and if the time when the power consumption is measured is between the bedtime and the wake-up time, “ If it is “midnight” and the time when the power consumption is measured is between the wake-up time and the breakfast end time, then it is the “morning” time and the time when the power consumption is measured is the breakfast time. If it is a time between the end time and the end time of lunch, it is the “am” time zone, and if the time when the power consumption is measured is a time between the end time of lunch and 5 pm, the time of “afternoon” If the time when the power consumption is measured is between 5:00 pm and the dinner end time, it is the “evening” time zone, and the time when the power consumption is measured is the dinner end time ~ If the time is between bedtime, please show an example where it is defined as “night” time zone. That. The specific start time and end time of each time zone can be defined and set and registered for each user according to the normal behavior pattern of the user (electric power consumer).

  The power consumption type determination unit 30 includes at least an energy saving power consumption calculation unit 31, a load duration curve creation unit 32, a region determination unit 33, and an excessive power consumption region determination unit 34. The energy-saving power consumption calculation unit 31 needs to always use the entire power consumption for each unit time of an arbitrary day (one day) extracted from the power consumption registration table 14 by the power consumption extraction unit 13. The power consumption amount that is the target of the energy saving action is calculated by subtracting the power consumption amount of the device, for example, the refrigerator.

  The load duration curve creation unit 32 attaches labels that sequentially increment from 1 in order of increasing power consumption for the power consumption amount for energy saving for each unit time calculated by the energy saving power consumption calculation unit 31. A load duration curve composed of an envelope graph in which the vertices of the bar graphs of the power consumption rearranged in the above order (that is, the power consumption per unit time in descending order) is sequentially created. That is, the power consumption amount to be saved is extracted from the power consumption amounts arbitrarily selected from the accumulated power consumption amounts per unit time and sequentially incremented from 1 in descending order of the power consumption amount. A load duration curve composed of an envelope graph in which the labels are attached and the vertices of the bar graphs of the power consumption created by rearranging the labels in the ascending order are created.

  The region discriminating unit 33 analyzes each region of “peak electric energy”, “normal electric energy”, and “base electric energy” on the load duration curve created by the load duration curve creation unit 32 by analyzing the shape of the load duration curve. It discriminate | determines using the predetermined conditional expression obtained. That is, based on the analysis result of the load duration curve created by the load duration curve creation unit 32, any one of the load devices that has a power consumption amount equal to or higher than a peak power threshold determined in advance on the load duration curve. The peak power consumption area using the device, the normal power consumption area using any device that will continuously consume a certain amount of power that is less than the peak power threshold when in use, the user The three regions of the base power amount region, which is the power consumption amount of only the device that always consumes the power, are discriminated regardless of the daily behavior pattern.

  The excessive power consumption region discriminating unit 34 has excessive power consumption for each of the “peak power amount”, “normal power amount”, and “base power amount” regions on the load duration curve determined by the region discriminating unit 33. For each season using “threshold threshold”, “intermediate threshold”, and “winter threshold” in advance. That is, the total power consumption for each region of the peak power amount region, the normal power amount region, and the base power amount region on the load duration curve determined by the region determining unit 33 is the total power consumption that is the target of energy saving. The ratio of power consumption by area for each area is calculated, and the calculated power consumption ratio for each area is determined for each area for each season for determining the excessive power consumption type. Based on whether or not the “summer threshold”, “intermediate threshold”, and “winter threshold” are exceeded, it is determined whether or not the power consumption is excessive in any of the regions.

  The energy saving action management unit 40 includes at least an energy saving action proposing part 41 and a power consumption amount evaluating part 42. The energy saving action proposing unit 41 proposes an energy saving action plan for encouraging the user to save energy based on the power consumption tendency of the user determined by the power consumption type determining unit 30. The power consumption amount evaluation unit 42 evaluates the power consumption amount as a result of the proposal of the energy saving action plan.

  In the above description, an example in which each part of the power consumption management unit 10, the season / time zone management unit 20, the power consumption type determination unit 30, and the energy saving action management unit 40 configuring the energy saving support device 100 is realized by hardware. However, each part may be realized by using other means such as software and firmware, for example, as an energy saving support method, or as a computer program executable by a computer, that is, an energy saving support program. , Power consumption management unit 10, season / time zone management unit 20, power consumption type discrimination unit 30, energy saving behavior management unit 40, respectively, power consumption management step 10, season / time zone management step 20, power consumption type discrimination Step 30, energy saving action management step It may be carried out as a 0.

  When implemented as an energy saving support method or as a computer program, they are included in the power consumption amount management unit 10, the season / time zone management unit 20, the power consumption type determination unit 30, and the energy saving action management unit 40, respectively. Power consumption measurement unit 11, power consumption registration unit 12, power consumption extraction unit 13, season / time zone registration unit 21, season discrimination unit 22, time zone discrimination unit 23, energy saving power consumption calculation unit 31, load duration curve creation unit 32, the region determination unit 33, the excessive power consumption region determination unit 34, the energy saving action suggestion unit 41, and the power consumption amount evaluation unit 42 also include a power consumption measurement step 11, a power consumption registration step 12, a power consumption extraction step 13, and a season, respectively. Time zone registration step 21, season discrimination step 22, time zone discrimination step 23, energy saving power consumption calculation Step 31, the load duration curve creation step 32, the area determination step 33, an excessive power region discrimination step 34, energy saving actions proposed step 41, it will be implemented as a power consumption amount evaluation step 42.

  Further, the energy saving support program including the steps as described above may be provided as a program recording medium recorded on a computer-readable recording medium. As such a recording medium, any medium capable of recording digital data, such as a magnetic disk such as a hard disk drive, an optical disk such as a CD-ROM or DVD-ROM, or a semiconductor memory can be used.

(Operation example of embodiment)
Next, operation | movement of the energy saving assistance apparatus 100 shown in FIG. 1 is demonstrated in detail using the flowchart of FIG. FIG. 4 is a flowchart for explaining an example of the operation of the energy saving support device 100 in FIG. 1. As an example of the energy saving support method according to the present invention, a load duration curve created based on the measurement result of power consumption on an arbitrary day. Thus, an example of the operation when determining the power consumption tendency of the user is shown.

  Prior to the flowchart of FIG. 4, the power consumption measurement unit 11 of the power consumption management unit 10 periodically measures the power consumption of the entire user's residence at a predetermined time interval (for example, one minute interval). As shown in FIG. 2, it is assumed that the power consumption registration unit 12 is registered in advance with the power consumption amount registration table 14 for the required period of time necessary for the energy saving support operation.

  The season / time zone registration unit 21 of the season / time zone management unit 20 defines the “summer season”, “winter season”, and “intermediate season” seasons, which are determined based on the life behavior of the user. It is assumed that definitions relating to the time zones of “midnight”, “morning”, “am”, “afternoon”, “evening”, and “night” are registered in advance in the season / time zone registration table 24.

  When the required data is already registered in the power consumption registration table 14 and the season / time zone registration table 24, when the flowchart of FIG. 4 is started, first, the power consumption extraction unit of the power consumption management unit 10 is started. 13 is the entire amount of power consumption for one day measured every predetermined unit time (for example, one minute) for an arbitrary day selected in an appropriately determined order within the required period required for the energy saving support operation, and Data regarding the power consumption of the refrigerator is extracted from the power consumption registration table 14 together with the measurement date and time (step S1).

  Next, the energy saving power consumption calculation unit 31 of the power consumption type determination unit 30 subtracts the power consumption amount of the refrigerator at the same measurement time from the entire power consumption amount for each unit time to calculate the energy saving target power consumption amount. (Step S2).

  After that, the load duration curve creating unit 32 attaches labels that sequentially increment from 1 in the descending order of the power consumption amount for the power saving target power consumption for each unit time calculated by the energy saving power consumption calculating unit 31. To create a load continuous curve (Load Continuous Curve) consisting of an envelope graph that connects the vertices of the bar graph of the power consumption rearranged in the order of the labels (that is, the power consumption per unit time in descending order) (Step S3).

  As shown in FIG. 5, the load persistence curve LC is arranged in a numerical order in which the horizontal axis is labeled with the label l linked to each measurement time in the descending order of the power consumption amount, and the vertical axis is the respective label. The power consumption a (l) at the measurement time associated with is shown. FIG. 5 is an explanatory diagram showing an example of the load duration curve LC created based on the power consumption measured every predetermined unit time.

  Once the load duration curve LC has been created, the region discriminating unit 23 discriminates each of the “peak power amount”, “normal power amount”, and “base power amount” regions on the load duration curve LC (steps). S4).

  That is, “peak power”, which is an area indicating that one of the first devices having a large power consumption (hereinafter referred to as “peak power”) that is temporarily greater than or equal to a predetermined peak power threshold is used during use. The first device is not used as in the “Amount” area, lighting or air conditioner, and it consumes less power than the peak power threshold, but continues to use while depending on the life of the user. The “ordinary power consumption” area, which is an area indicating that any third device that consumes electric power (hereinafter referred to as “ordinary power”) is being used, a standby power supply for TV, a router device, and a heating toilet seat As described above, the “base power amount” is an area indicating that only the second device that always consumes power (hereinafter referred to as “base power”) is used regardless of the user's daily activities. Band, the three areas, partitioning the region of the load sustained station line.

Specifically, the boundary position of each region on the load duration curve is determined based on the analysis result of the load duration curve by the following procedure. First, as shown in FIG. 5, the first label of each label attached to the load persistence curve LC, that is, label 1 (that is, the largest power consumption among the measurement times at which the power consumption is measured per unit time). A label associated with the measured measurement time) and a final label such as label L ₄ (that is, a label associated with the measurement time when the smallest power consumption is measured), for example, label L the _second position L ₂ = L _4/2
Ask for.

Next, the energy consumption target power consumption amount a (L ₂ ) at the measurement time linked to the label located at the center, for example, the label L ₂ , that is, the central position power consumption amount a (L ₂ ) is taken out. The difference power amount α from the power consumption amount γ is expressed as α = γ−a (L ₂ ).
Ask for. The difference power amount α is how much the central position power consumption amount a (L ₂ ) at the center position of the label l (1 = 1 to L ₄ ) for one day is reduced from the maximum power consumption amount γ. This is an index that directly indicates the shape of the load duration curve LC, that is, the user's power consumption tendency.

  Therefore, based on the analysis result of the shape of the simple load duration curve LC as described above, the power consumption is reduced from the maximum power consumption γ to the power amount corresponding to 80% of the difference power amount α at the center position of the label. The position of the label is identified as a boundary position that divides the “peak power amount” and “normal power amount” regions on the load duration curve LC. The specification of such a boundary position is based on the judgment that the boundary position is appropriate based on the result of a demonstration experiment performed by monitors of a sufficient number of users (for example, 20 people) as the number of samples.

That is, the label of the position that divides the region of “peak power” and “ordinary power”, for example, the position of the label L ₁ , and the power consumption a (L ₁ ) is β = γ−0.8α = γ−0. .8 {γ-a (L ₂ )}
Is determined as the position equal to.

By applying a simple conditional expression such as this, it is possible to determine the position that divides the region of “peak power” and “common power”, and as shown in FIG. region can be specified as a region from the beginning of the label 1 covers the load duration curve LC up label L ₁ of.

On the other hand, the position is substantially equal to the power consumption to the minimum power consumption in the measurement time corresponding to the position of the last label L ₄ for dividing a region on the load duration curve LC as "usual amount of power" and "base electric power amount" The area where the amount is maintained is regarded as the “base electric energy” area. Therefore, the position of the label may be determined as being changed from the minimum power consumption by a predetermined amount of power. However, since the amount of fluctuation in power consumption is extremely small near the label near the minimum power consumption, such as the “base power” area, the “normal power” and “base power” In general, it is difficult to accurately determine a position that has fluctuated by a predetermined amount of electric power for dividing an area.

Therefore, in the present embodiment, in order to more easily determine the “base power amount” region as described above, a label corresponding to the bedtime that shifts to the user's inactivity time (sleeping time), for example, the label L ₃ The position is specified as a position where the position is switched from the “ordinary power consumption” to the “base power consumption” area.

  The determination of the boundary position between the “normal electric energy” and “base electric energy” areas was also determined to be appropriate based on the results of demonstration experiments by monitoring a sufficient number of users (for example, 20 people) as samples. There are grounds.

As a result, as shown in FIG. 5, the “ordinary power consumption” area can be specified as the area covered by the load duration curve LC from the label L ₂ to the label L ₃ . region, can be identified as an area that covers the load duration curve LC from the label L ₃ to the last label L _4.

  Next, referring back to the flowchart of FIG. 4, the excessive power consumption region discriminating unit 34 indicates “peak power amount”, “common use” on the load duration curve LC determined by the region discriminating unit 33 as the power consumption tendency of the user. It is determined whether or not an excessive amount of power is consumed in each region of “power amount” and “base power amount”. For this reason, first, the total power consumption in each of the “peak power”, “regular power”, and “base power” areas is calculated as the total power consumption by area, and then each area is calculated. The ratio of the total power consumption by area to the total power consumption targeted for energy saving is calculated as the power consumption ratio by area.

  Next, for the calculated power consumption ratio by area in each area, threshold values determined in advance for each area for each season for determining the excessive power consumption type (that is, peak power energy area, normal power energy area, base power energy) Compared to the threshold value for each region related to the season corresponding to the measurement date of power consumption among the summer threshold value, intermediate period threshold value, winter threshold value in each region, and if the threshold value is exceeded, it corresponds It is determined that the power consumption is excessive in the area, and it is determined that an appropriate energy saving action plan should be presented to the user.

That is, the excessive power consumption area discriminating unit 34 determines whether or not the power consumption is excessive for each area according to the following procedure. When the region on the load duration curve LC determined by the region determination unit 33 is a region of “peak power” (in the case of “peak power” in step S4), first, the following equation (1) is obtained. The total power consumption of the energy saving target in the “peak power consumption” region from label 1 to label L _1, that is, the peak power consumption P _p is calculated, and then the peak power consumption P _p is the power consumption of the energy saving target. A ratio of the entire amount P is calculated (step S51). Here, the power consumption P of energy saving target is given by the sum of the power consumption from the beginning of the label 1 in the load duration curve LC to the last label L _4.

そして、次に、季節判別部２２を用いて、対象とする当該任意日に関する測定日時を、季節・時間帯登録テーブル２４の季節登録テーブル２４ａの定義内容と比較することによって、当該測定日時が示す季節が、「夏季」、「中間期」、「冬季」のいずれであるかを判別する（ステップＳ６１）。

Then, by using the season determination unit 22, the measurement date and time is indicated by comparing the measurement date and time related to the target arbitrary date with the definition content of the season registration table 24 a of the season / time zone registration table 24. It is determined whether the season is “summer”, “intermediate”, or “winter” (step S61).

When it is determined that the season indicated by the measurement date / time is “summer” (in the case of “summer” in step S61), the peak of the summer threshold is referred to with reference to the excessive power consumption type determination threshold shown in FIG. Using the summer peak threshold 30%, which is an excessive power consumption type determination threshold in the power value region,
P _p / P> 30%
If the above relationship is established, the ratio of the peak power amount P _p that is the total power consumption in the peak power value region is the summer peak threshold 30 determined in advance in order to determine the excessive power consumption type in summer. %, It is determined that the power consumption is excessive in the peak power consumption region (step S71).

  Note that FIG. 6 shows threshold values for determining whether or not the power consumption type is an excessive power consumption type in each region of “peak power amount”, “normal power amount”, and “base power amount”. It is a table which shows an example of the excessive power consumption type determination threshold value registration table registered for each of “intermediate period (spring / autumn)” and “winter season”.

on the other hand,
P _p / P ≦ 30%
In the case of the relationship, since the summer peak threshold value is 30% or less, it is determined that the power consumption amount is not excessive in the peak power amount region (step S71).

When it is determined that the season indicated by the measurement date is “intermediate period” (in the case of “intermediate period” in step S61), the intermediate period is referred to with reference to the excessive power consumption type determination threshold shown in FIG. Among the threshold values, using an intermediate period peak threshold value of 30%, which is an excessive power consumption type determination threshold value in the peak power value region,
P _p / P> 30%
If the above relationship is established, the ratio of the peak power amount P _p that is the total power consumption in the peak power value region is the peak value of the intermediate period determined in order to determine the excessive power consumption type in the intermediate period. Since the threshold value exceeds 30%, it is determined that the power consumption is excessive in the peak power consumption region (step S81).

on the other hand,
P _p / P ≦ 30%
If it is in the relationship, it is determined that the power consumption amount is not excessive in the peak power amount region because the intermediate period peak threshold value is 30% or less (step S81).

In addition, when it is determined that the season indicated by the measurement date / time is “winter” (in the case of “winter” in step S61), referring to the excessive power consumption type determination threshold shown in FIG. Unlike the case of summer, the winter peak threshold 10%, which is an excessive power consumption type determination threshold in the peak power value region,
P _p / P> 10%
If the above relationship is established, the ratio of the peak power amount P _p that is the total power consumption in the peak power value region is the winter peak threshold value 10 determined in advance in order to determine the excessive power consumption type in the winter season. Therefore, it is determined that the amount of power consumption is excessive in the peak power amount region (step S91).

on the other hand,
P _p / P ≦ 10%
In the case of the relationship, since the winter peak threshold value is 10% or less, it is determined that the power consumption amount is not excessive in the peak power amount region (step S91).

Also, for the “ordinary power amount” region and the “base power amount” region, the same discrimination processing as in the “peak power amount” region is performed. That is, when the region on the load duration curve LC determined by the region determination unit 33 is a region of “ordinary power” (first “normal power” in step S4), first, the following equation (2 ) was used to calculate the total power consumption i.e. regular power amount P _h of energy saving target in the "usual amount of power" region from the label L ₁ until the label L _3, after which conventional power amount P _h is energy saving target The ratio of the total power consumption P is calculated (step S52).

そして、次に、「ピーク電力量」の領域の場合と同様、季節判別部２２を用いて、対象とする当該任意日に関する測定日時を、季節・時間帯登録テーブル２４の季節登録テーブル２４ａの定義内容と比較することによって、当該測定日時が示す季節が、「夏季」、「中間期」、「冬季」のいずれであるかを判別する（ステップＳ６２）。

Next, as in the case of the “peak power consumption” region, the season determination unit 22 is used to define the measurement date and time related to the target arbitrary date in the seasonal registration table 24 a of the season / time zone registration table 24. By comparing with the contents, it is determined whether the season indicated by the measurement date is “summer season”, “intermediate period”, or “winter season” (step S62).

When it is determined that the season indicated by the measurement date is “summer season” (in the case of “summer season” in step S62), referring to the excessive power consumption type determination threshold shown in FIG. Using the summer regular threshold 55%, which is the excessive power consumption type determination threshold in the power value region,
_Ph / P> 55%
If the relationship was satisfied, the proportion of the total power consumption of conventional power value area usual amount of power P _h is summer conventional threshold 55 a predetermined order to determine excessive power consumption type in summer Therefore, it is determined that the power consumption is excessive in the normal power consumption region (step S72).

on the other hand,
_Ph / P≤55%
In the case of the relationship, since the summer regular threshold is 55% or less, it is determined that the power consumption is not excessive in the regular power consumption region (step S72).

When it is determined that the season indicated by the measurement date is “intermediate period” (in the case of “intermediate period” in step S62), the intermediate period is referred to with reference to the excessive power consumption type determination threshold shown in FIG. Among the thresholds, using the mid-period common threshold 55% that is the excessive power consumption type determination threshold in the regular power value region,
_Ph / P> 55%
If the relationship was satisfied, the proportion of the total power consumption of conventional power value area usual amount of power P _h is predetermined interim period customary to determine excessive power consumption type of interim Since the threshold value exceeds 55%, it is determined that the power consumption is excessive in the normal power consumption area (step S82).

on the other hand,
_Ph / P≤55%
In the case of the relationship, since the intermediate period normal threshold is 55% or less, it is determined that the excessive power consumption is not in the normal power consumption region (step S82).

When it is determined that the season indicated by the measurement date is “winter” (in the case of “winter” in step S62), the overpower consumption type determination threshold shown in FIG. Unlike the case of summer, using the winter normal threshold 43%, which is an excessive power consumption type determination threshold in the normal power value area,
_Ph / P> 43%
If the relationship was satisfied, the proportion of the total power consumption of conventional power value area usual amount of power P _h is predetermined Winter customary threshold to determine excessive power consumption type in winter 43 Therefore, it is determined that the power consumption is excessive in the normal power consumption area (step S92).

on the other hand,
P _h / P ≦ 43%
If it is in the relationship, it is determined that the power consumption amount is not excessive in the normal power consumption region because the winter use threshold value is 43% or less (step S92).

When the region on the load duration curve LC determined by the region determining unit 33 is a region of “base power” (in the case of “base power” in step S4), first, the following equation (3 ) To calculate the total power consumption of the energy saving target in the “base power consumption” region from the label L ₃ to the label L _4, that is, the base power consumption P _b , and then the base power consumption P _b becomes the energy saving target. The ratio of the total power consumption P is calculated (step S53).

そして、次に、「ピーク電力量」の領域の場合と同様、季節判別部２２を用いて、対象とする当該任意日に関する測定日時を、季節・時間帯登録テーブル２４の季節登録テーブル２４ａの定義内容と比較することによって、当該測定日時が示す季節が、「夏季」、「中間期」、「冬季」のいずれであるかを判別する（ステップＳ６２）。

Next, as in the case of the “peak power consumption” region, the season determination unit 22 is used to define the measurement date and time related to the target arbitrary date in the seasonal registration table 24 a of the season / time zone registration table 24. By comparing with the contents, it is determined whether the season indicated by the measurement date is “summer season”, “intermediate period”, or “winter season” (step S62).

When it is determined that the season indicated by the measurement date is “summer season” (in the case of “summer season” in step S63), the excess power consumption type determination threshold shown in FIG. Using a summer base threshold of 15%, which is an excessive power consumption type determination threshold in the power value region,
P _b / P> 15%
If the relationship was established, the percentage of the base amount of electric power P _b is the total power consumption of the base power value region, summer base threshold 15 a predetermined order to determine excessive power consumption type in summer Therefore, it is determined that the power consumption is excessive in the base power consumption area (step S73).

on the other hand,
P _b / P ≦ 15%
In the case of the relationship, since the summer base threshold value is 15% or less, it is determined that the power consumption amount is not excessive in the base power amount region (step S72).

When it is determined that the season indicated by the measurement date is “intermediate period” (in the case of “intermediate period” in step S62), the intermediate period is referred to with reference to the excessive power consumption type determination threshold shown in FIG. Among the threshold values, using the intermediate base threshold value 15% that is the excessive power consumption type determination threshold value in the base power value region,
P _b / P> 15%
If the relationship was established, the percentage of the base amount of electric power P _b is the total power consumption of the base power value region, a predetermined interim period basis to determine excessive power consumption type of interim Since the threshold value exceeds 15%, it is determined that the power consumption is excessive in the base power consumption region (step S83).

on the other hand,
P _b / P ≦ 15%
If it is in the relationship, it is determined that the power consumption amount is not excessive in the base power amount region because the intermediate base threshold value is 15% or less (step S83).

Further, when it is determined that the season indicated by the measurement date / time is “winter” (in the case of “winter” in step S63), with reference to the excessive power consumption type determination threshold shown in FIG. Unlike the case of the summer, the winter base threshold 47%, which is the excessive power consumption type determination threshold in the base power value area,
P _b / P> 47%
If the relationship was established, the percentage of the base amount of electric power P _b is the total power consumption of the base power value area, winter base threshold 47 predetermined to determine excessive power consumption type in winter Therefore, it is determined that the power consumption is excessive in the base power consumption area (step S93).

on the other hand,
P _b / P ≦ 47%
In the case of the relationship, since the winter base threshold value is 47% or less, it is determined that the power consumption amount is not excessive in the base power amount region (step S93).

  As described above, the threshold for determining whether or not it is an excessive power consumption type in each region of “peak energy”, “regular energy”, and “base energy” is “summer”, Since it is prepared in advance for each of the “intermediate (spring / autumn)” and “winter” seasons, it is possible to more accurately determine the user's power consumption trend, and to create an effective energy-saving action plan for the user. It becomes possible to present. Note that the excessive power consumption type determination threshold in each region for each season registered in the excessive power consumption type determination threshold registration table of FIG. 6 is an example, and is not limited to this case. Each threshold value shown in FIG. 6 indicates a reasonable value that is determined to be appropriate based on the results of a demonstration experiment performed by monitors of a sufficient number of users (for example, 20 people) as the number of samples.

  Further, in the operation example shown in FIG. 4, among the areas of “peak power amount”, “normal power amount”, and “base power amount”, an excessive power consumption type is not used in a single region but in a plurality of regions. If the determination result is obtained, it is determined that the power consumption is excessive in the region where the deviation from the corresponding threshold is larger, so that the user is more accurate. An energy conservation action plan can be presented.

  That is, in the excessive power consumption region discriminating unit 34, the power consumption ratio by region in each of the plurality of regions of the peak power amount region, the normal power amount region, and the base power amount region is the threshold value of each corresponding region. For each of the corresponding areas, compare the degree of deviation between the power consumption ratio by area and the threshold value of each corresponding area, and select the area with the largest degree of deviation from the threshold. By preferentially determining the region where the amount is excessive, it is possible to present a more effective energy saving action plan to the user.

For example, in the summer,
The ratio P _p / P = 35% of the peak power P _p ,
Proportion of usual electric energy _{P h P h / P = 45} %
The proportion of the base amount of electric power _{P b P b / P = 20} %
As shown in FIG.
Summer peak threshold 30%
Summer regular threshold 55%
Summer base threshold 15%
Therefore, it is determined that the power consumption exceeds the respective threshold values in the two regions of the peak power amount P _p and the base power amount P _b , resulting in excessive power consumption.

Here, when the degree of deviation from the respective threshold values in the two regions of the peak power amount P _p and the base power amount P _b is obtained, in the case of the peak power amount P _p region,
(35% -30%) / 30% = 16.7%
, And the case of the region of the base electric power amount P _b,
(20% -15%) / 15% = 33.3%
In it, it can be determined that deviation from the threshold value towards the region of the base amount of electric power P _b corresponds large. Accordingly, in the region of the base electric power amount P _b, you are assumed that more significantly excessive power consumption occurs, with priority energy saving action plan to the load device that corresponds to the region of the base amount of electric power P _b Selection Can be provided to the user.

By performing the operation as described above, the three regions of the peak power amount region, the normal power amount region, and the base power amount region can be clearly separated by simple logic on the load duration curve LC. That is, the power consumption at the position of the label L ₁ comprising a boundary between the peak electric energy region with conventional electric energy regions on the load duration curve LC a (L ₁₎ and to the beginning of the label and the last label and the center of the power consumption at the position of the label L ₂ position and a (L _2), the maximum power consumption in the position of the head of the label when the gamma,
a (L ₁ ) = γ−0.8 {γ−a (L2)}
Determine the area between the beginning of the label to be the position of the label L ₁ and the maximum power consumption γ which relationship is established as a region corresponding to the peak electric energy region, is tied to bedtime from the label L ₁ The label L ₃ is determined as an area corresponding to the normal power amount area, and further, the label L ₃ linked to the bedtime to the final label L ₄ is determined as an area corresponding to the base power amount area. it can.

  Furthermore, the ratio of the total power consumption by region for each of the peak power amount region, the normal power amount region, and the base power amount region to the total power consumption subject to energy saving is the power consumption ratio by region for each region. As a result, the calculated power consumption ratio of each area exceeds the thresholds (summer threshold, intermediate period, winter threshold) determined for each area for each season for determining the excessive power consumption type. Areas that have excessive power consumption without being affected by the season by determining whether the power consumption is excessive in any of the areas based on whether or not Can be determined accurately and easily. Thus, unlike the prior art, it is not necessary to provide an individual power meter for each seasonal home appliance, and a more economical energy saving support device can be provided.

DESCRIPTION OF SYMBOLS 10 ... Power consumption management part, 11 ... Power consumption measurement part, 12 ... Power consumption registration part, 13 ... Power consumption extraction part, 14 ... Power consumption registration table, 20 ... Season / time zone management part, 21 ... Season / Time zone registration unit, 22 ... season discrimination unit, 23 ... time zone discrimination unit, 24 ... season / time zone registration table, 24a ... season registration table, 24b ... time zone registration table, 30 ... power consumption type discrimination unit, 31 ... Energy-saving power consumption calculation unit, 32 ... Load duration curve creation unit, 33 ... Area determination unit, 34 ... Excessive power consumption region determination unit, 40 ... Energy-saving action management unit, 41 ... Energy-saving action proposal unit, 42 ... Power consumption evaluation 100, an energy saving support device.

Claims (8)

The power consumption of the load device used by the user is measured and accumulated periodically every predetermined unit time, and every time a predetermined period of time elapses, based on the calculation result of the accumulated power consumption, Energy-saving support apparatus having a mechanism for identifying a load device that is expected to reduce power consumption by analyzing a user's power usage trend and providing a user with an energy-saving action plan corresponding to the power consumption reduction of the load device Because
Created by extracting the power consumption amount that is the target of energy saving out of the power consumption amount of any day appropriately selected from the accumulated power consumption amount per unit time, and rearranging them in order of increasing power consumption amount A load duration curve creation unit that creates a load duration curve composed of an envelope graph in which the vertices of the bar graph of power consumption are sequentially connected;
Based on the analysis result of the load duration curve created by the load duration curve creation unit, any one of the load devices having a power consumption amount equal to or higher than a peak power threshold determined in advance on the load duration curve. The peak power consumption region using the device, the normal power consumption region using any device that will continue to consume a certain amount of power that is less than the peak power threshold when in use, the user An area discriminating unit that discriminates three areas, a base electric energy area that is an electric power consumption amount of only a device that always consumes electric power regardless of the daily behavior pattern of
The total power consumption for each region of each of the peak power amount region, the normal power amount region, and the base power amount region on the load duration curve determined by the region determining unit is the power consumption subject to energy saving. The percentage of the total amount is calculated as the power consumption ratio for each area for each area, and the calculated power consumption ratio for each area for each area is determined in advance for each area for each season for determining the excessive power consumption type. An excessive power consumption region determination unit that determines whether or not the power consumption amount is excessive in any of the regions based on whether or not the threshold value is exceeded.
An energy saving support device characterized by comprising at least.   2. The energy saving support device according to claim 1, wherein, in the plurality of regions of the peak power amount region, the normal power amount region, and the base power amount region in the excessive power consumption region determination unit, When the power consumption ratio for each area exceeds the threshold value for each corresponding area, the degree of deviation between the power consumption ratio for each area and the threshold value for each corresponding area is determined for each of the corresponding areas. An energy saving support apparatus characterized in that a region having the greatest degree of deviation from the threshold is preferentially determined as a region where the amount of power consumption is excessive. The power consumption of the load device used by the user is measured and accumulated periodically every predetermined unit time, and every time a predetermined period of time elapses, based on the calculation result of the accumulated power consumption, An energy saving support method having a mechanism for identifying a load device that is expected to reduce power consumption by analyzing a user's power usage trend and providing a user with an energy saving action plan corresponding to the reduction of the power consumption of the load device Because
Created by extracting the power consumption amount that is the target of energy saving out of the power consumption amount of any day appropriately selected from the accumulated power consumption amount per unit time, and rearranging them in order of increasing power consumption amount A load duration curve creating step for creating a load duration curve consisting of an envelope graph in which the vertices of the bar graph of power consumption are sequentially connected;
Based on the analysis result of the load duration curve created in the load duration curve creation step, any one of the load devices on the load duration curve that has a power consumption equal to or higher than a peak power threshold determined in advance. The peak power consumption region using the device, the normal power consumption region using any device that will continue to consume a certain amount of power that is less than the peak power threshold when in use, the user A region determination step for determining three regions, a base power amount region that is a power consumption amount of only a device that always consumes power regardless of the life behavior pattern of
The total power consumption for each region of the peak power amount region, the regular power amount region, and the base power amount region on the load duration curve determined in the region determining step is the power consumption that is the target of energy saving. The percentage of the total amount is calculated as the power consumption ratio for each area for each area, and the calculated power consumption ratio for each area for each area is determined in advance for each area for each season for determining the excessive power consumption type. An excessive power consumption region determination step for determining whether or not the power consumption amount is excessive in any of the regions based on whether or not the threshold value is exceeded;
An energy saving support method characterized by comprising at least   4. The energy saving support method according to claim 3, wherein in the excessive power consumption region determination step, in any one of the peak power amount region, the normal power amount region, and the base power amount region, the plurality of regions, When the power consumption ratio for each area exceeds the threshold value for each corresponding area, the degree of deviation between the power consumption ratio for each area and the threshold value for each corresponding area is determined for each of the corresponding areas. An energy saving support method comprising: comparing and preferentially determining a region having the greatest degree of deviation from the threshold value as a region having an excessive power consumption.   5. The energy saving support method according to claim 3, wherein the threshold used for determining the excessive power consumption type of each region in the excessive power consumption region determining step is arbitrarily defined in summer, winter, and The energy saving support method is characterized in that it is determined in accordance with each season, divided into three periods corresponding to spring or autumn. The energy saving support method according to claim 5,
When the season is summer, the threshold values of the peak power region, the normal power region, and the base power region are defined as 30%, 55%, and 15%,
When the season is an intermediate period, the threshold values of each of the peak power amount region, the normal power amount region, and the base power amount region are defined as 30%, 55%, and 15%,
When the season is the winter season, the threshold value of each of the peak power amount region, the normal power amount region, and the base power amount region is defined as 10%, 43%, and 47%, respectively, and energy saving support Method. The energy saving support method according to any one of claims 3 to 6, wherein when determining the peak power amount region on the load duration curve in the region determination step, the peak power amount region on the load duration curve. L _{1 is} the label indicating the position of the boundary between the power consumption area and the normal power consumption area, a (L ₁ ) is the power consumption at the position of the label L ₁ , and the maximum power consumption at the head position on the load duration curve When the amount is γ, the label indicating the center position between the first position and the last position on the load duration curve is L ₂ , and the power consumption at the position of the label L ₂ is a (L ₂ ),
a (L ₁ ) = γ−0.8 {γ−a (L ₂ )}
Energy saving support method, wherein a relationship is determined that region a region corresponding to the peak electric energy region between the first position to become γ label L ₁ and the maximum power consumption of positions established.   An energy saving support program, wherein the energy saving support method according to claim 3 is implemented as a program executable by a computer.

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