JP2013033319A - 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 accurately discriminating an exceptional day when the action pattern of a user is different from that on an ordinary day, and for excluding power consumption on the exceptional day from an arithmetic object.SOLUTION: Power consumption measured in each unit time on an arbitrary day and the day before the arbitrary day is sorted for every predetermined time zone by a time zone-categorized power consumption addition part 31, and totaled as time zone-categorized total power consumption on the arbitrary day and the day before the arbitrary day, and the rate of a difference between the time zone-categorized total power consumption on the arbitrary day and the day before the arbitrary day to time zone-categorized total power consumption on the arbitrary day is calculated as a time zone-categorized difference power consumption rate by a time zone-categorized difference power consumption rate calculation part 32, and the time zone-categorized difference power consumption rate is compared with a predetermined threshold for each season to which the measurement date of the power consumption is belonging, and when even one of the time zone-categorized difference power consumption rates in each time zone is equal to or more than the threshold, the arbitrary day is discriminated as an exceptional day to be excluded from an arithmetic object by a season-categorized exceptional day discrimination part 33.

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, identifies an exceptional day that is different from a normal day based on fluctuations in power consumption, and a user's power usage tendency for energy saving support. It is related with the technique excluded from the calculation object of the power consumption when calculating | requiring.

  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, according to the life of the user, the third device, which is smaller than the peak power threshold, but continuously consumes power (hereinafter referred to as “regular power”) while being used. Each type is classified in advance and registered in advance, and the power consumption of the entire load device is determined in units of time (for example, every minute) determined in advance by a power meter placed on a distribution board. And it accumulates on a regular basis measurement.

  After that, based on the regular measurement result of the power consumption of the entire load device over a predetermined period (for example, one week), the power consumption of the entire load device is determined at the same time every day for each unit time. By calculating an average value and creating a load duration curve arranged in descending order of the average value, a power consumption pattern indicating a user's power usage tendency is determined. In other words, by calculating the ratio of the “peak power”, “base power”, and “regular power” to the total power consumption on the created load persistence curve, the user power consumption pattern becomes “peak power excessive”. , "Base power excessive amount" or "ordinary power excessive amount" is discriminated.

  Based on the determined power consumption pattern of the user, an energy saving device prepared in advance by specifying a load device with excessive power consumption from among the first device, the second device, and the third device. 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.

  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, the amount of power consumption that is subject to calculation when determining the user's power usage tendency for energy saving support varies greatly depending on the user's lifestyle, such as being absent due to travel, business trips, etc. When an event that greatly affects the trend in volume occurs, it is assumed that the user is performing different lifestyle behaviors than usual in order to prevent the calculation result of power consumption from including a large error due to the event. It is desirable to exclude the evaluation date from the power consumption to be calculated as an exceptional day.

  For example, in the mechanism proposed in Patent Document 1, the first device, the second device, and the third device are determined according to “peak power”, “base power”, and “normal power” on the load duration curve. When trying to detect a load device with excessive power consumption from the day, the user's daily behavior pattern was different from normal, such as during a travel period (hereinafter referred to as "exception day") It is important to calculate by excluding the power consumption). In other words, when creating a load duration curve, it is important to create a load duration curve based on the amount of power consumed only on the day when a normal life was taken, excluding “exceptional days”. Also, when trying to determine whether or not it is an exceptional day based on the abnormal value of power consumption, even if it is a day when normal living behavior pattern is performed, power consumption varies greatly depending on the season and time zone For this reason, in order to accurately determine whether or not the date is an exception date, it is necessary to sufficiently consider the threshold value used for exception date identification.

  The present invention has been made in view of such circumstances, and accurately discriminates exception days whose user behavior patterns are different from normal ones, and excludes the power consumption of the exception days from calculation targets for energy saving. The purpose is to provide an energy saving support device, an energy saving support method, and an energy saving support program.

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

  The first technical means measures and accumulates the power consumption of the load device used by the user periodically at a predetermined time interval and stores the accumulated power consumption every time a predetermined period of time elapses. Analyzing the user's power usage trend based on the calculation result identifies the load device that is expected to reduce the power consumption, and provides the user with an energy saving action plan corresponding to the power consumption reduction of the load device An energy-saving support device having a mechanism, wherein, among the accumulated power consumption amounts, the power consumption amount arbitrarily selected on an arbitrary day and the power consumption amount on the previous day of the arbitrary date are set in advance based on each measurement date and time. For each time zone, and by adding the corresponding power consumption for each time zone, the total power consumption for each time zone and the arbitrary The total power consumption by time zone obtained as the total power consumption by time zone of the previous day, the total power consumption by time zone by the time of the arbitrary date obtained by the power consumption sum by time zone, and the day before the arbitrary date The ratio of the difference from the total power consumption by time zone to the total power consumption by time zone on the given day is calculated as the differential power consumption ratio by time zone for each time zone. The difference power consumption ratio for each time zone obtained by the amount ratio calculation section and the difference power consumption ratio calculation section for each time zone is determined in advance for each season to which the measurement date of power consumption belongs. As a result of comparison with the threshold value, if any of the differential power consumption ratios by time period for each time period is smaller than the threshold value, the power consumption tendency of the user on the arbitrary day is determined based on the power consumption amount of the arbitrary day. For analyzing It is determined that it is a normal day to be used as a calculation target. On the other hand, if any one of the difference power consumption ratios by time zone for each time zone is equal to or greater than the threshold value, the arbitrary day is: A seasonal exception date identification unit that determines that the power consumption amount on any given day is an exception date that should be excluded from the calculation target for analyzing the power usage tendency of the user. And

  According to a second technical means, in the energy saving support apparatus according to the first technical means, the threshold used for determining whether or not the seasonal exception date identification unit determines whether or not the day is an exceptional day is arbitrarily defined in advance. It is divided into three periods, summer, winter, and intermediate period corresponding to spring or autumn, and is determined appropriately for each season.

  According to a third technical means, the power consumption of the load device used by the user is periodically measured and accumulated at a predetermined time interval, and the accumulated power consumption is calculated every time a predetermined period elapses. Analyzing the user's power usage trend based on the calculation result identifies the load device that is expected to reduce the power consumption, and provides the user with an energy saving action plan corresponding to the power consumption reduction of the load device An energy saving support method having a mechanism, wherein, among the accumulated power consumption, a power consumption amount arbitrarily selected on an arbitrary day and a power consumption amount on the previous day of the arbitrary day are set in advance based on each measurement date and time. For each time zone, and by adding the corresponding power consumption for each time zone, the total power consumption for each time zone and the arbitrary The total power consumption by time zone obtained as the total power consumption by time zone on the previous day, the total power consumption by time zone by the time of the arbitrary date obtained in the total power consumption by time zone, and the day before the arbitrary date The ratio of the difference from the total power consumption by time zone to the total power consumption by time zone on the given day is calculated as the differential power consumption ratio by time zone for each time zone. The time ratio difference power consumption ratio calculation step and the time period difference power consumption ratio calculation step determined in advance for each season to which the power consumption measurement date and time belong are determined in advance. As a result of comparison with the threshold value, if any of the differential power consumption ratios by time period for each time period is smaller than the threshold value, the power consumption of the arbitrary day is set as the user power. When it is determined that it is a normal day to be used as a calculation target for analyzing the usage trend, and any one of the difference power consumption ratios by time zone for each time zone is greater than or equal to the threshold value Has at least a seasonal exception day identification step for determining that the arbitrary day is an exception day that should be excluded from the calculation target for analyzing the power usage tendency of the user. It is characterized by.

  According to a fourth technical means, in the energy saving support method according to the third technical means, the threshold value used for determining whether or not an exceptional day is determined in the seasonal exception day identification step is arbitrarily defined in advance. It is divided into three periods, summer, winter, and intermediate period corresponding to spring or autumn, and is determined appropriately for each season.

  According to a fifth technical means, in the energy saving support method according to the fourth technical means claim 4, the threshold value for summer and intermediate periods is set to an arbitrary value within a range of 0.1 to 0.2, The threshold value for winter is set to 0.1.

  According to a sixth technical means, in the energy saving support method according to any one of the third to fifth technical means, six time zones of midnight, morning, morning, afternoon, evening, and night are arbitrarily set in advance for each user. Define and arbitrarily define in advance for each user for each season as a time zone of the differential power consumption ratio by time zone used to determine whether or not an exception day in the seasonal exception day identification step One or more time zones are selected from the six time zones.

  A seventh technical means is the energy saving support method as described in the sixth technical means, wherein the difference power consumption ratio by time zone used for determining whether or not it is an exceptional day in the seasonal exception day identification step. Of the six time zones arbitrarily defined in advance for each user, if the season is summer and mid-term, the time zone is four times zones of late night, morning, afternoon, and night, and if the season is winter, It is characterized by four time zones: midnight, afternoon, evening, and night.

  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 following effects can be obtained.

  First, since the threshold value used for determining whether or not it is an exceptional day is changed to an appropriate value for each season, it is possible to appropriately identify the exceptional date for each season. It is desirable to use a value with a basis for determining that the threshold is appropriate based on the result of a demonstration experiment using monitors of a sufficient number of users (for example, 20) as the number of samples.

  Secondly, in general, there are time periods in which the power consumption is greatly different and power periods in which the power consumption is not significantly different as daily power consumption. When the user performs an exceptional action, it is also possible to compare only the time periods in which the power consumption is greatly different, so that compared to comparing the power consumption of the entire day, The exception date can be accurately identified with a small amount of computation and without reducing the detection accuracy of the exception date.

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.

  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. In general, the amount of power consumption is large in order to be able to provide advice to support actions for power saving based on the calculation results of the power consumption amount of the day when each user performs a normal action. It is determined whether the user's living behavior pattern that has an effect is an exceptional behavior different from a normal day, and the day when the behavior is an exceptional behavior is regarded as an exceptional day. Although it is important to exclude from the calculation, the present invention makes it possible to accurately determine an exceptional day when the user's daily behavior pattern is thus different from the daily life behavior pattern. This is the main feature.

  More specifically, the user's power consumption on any given day is compared with the power consumption on the previous day, and if the deviation is greater than a predetermined value, the given day is an exception. It is specified as a day, and the rate of change from the power consumption for each time zone of the previous day of the user's power consumption for any given day of the user is determined in advance as an appropriate value for each season. The main feature is that, based on the result of comparison with the threshold value, a day on which a large change exceeding the threshold value has occurred is determined as an exceptional day.

  That is, on the day of any day, for example, when the user is away on business trips or travel, the power is hardly consumed, or the home party is held and the power is consumed significantly day and night. Even if you try to determine whether or not the day of exceptional power consumption has changed due to exceptional living behavior patterns, the fluctuation of power consumption on a normal day will be affected by the time of day (midnight, morning , Morning, afternoon, evening, and night) as well as seasonal (summer, intermediate (spring, autumn), winter, etc.) needs to be considered.

  Therefore, in the present invention, when identifying whether or not it is an exceptional date, according to the season, it is possible to accurately determine the exceptional date by using different threshold values for identifying the exceptional date. In order to grasp the fluctuations in the power consumption of any day, the time zone defined appropriately for each user should be applied to the time zone to be compared with the power consumption of the same time zone the day before the arbitrary day. It is possible to more accurately discriminate the exception date, and, among the time zones in which one day is divided into a plurality of times, one or more time zones that are different depending on the season as a time zone that makes it easy to identify the exception date. Reduces the amount of computation without reducing the accuracy of exceptional day detection by enabling selection and grasping fluctuations in power consumption on any day for one or more selected time zones Exception day It is also possible to determine more quickly.

(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 a device configuration diagram showing an example of a block configuration of an energy saving support device according to the present invention. When performing energy saving support related to power consumption, consumption on an exceptional day when an action different from a normal day is performed In order to remove the power amount from the calculation target of the power consumption amount for energy saving, only the part related to identifying the exceptional date is extracted and shown.

  The energy saving support apparatus 100 shown in FIG. 1 includes at least a power consumption amount management unit 10, a season / time zone management unit 20, an exception date calculation unit 30, and an energy saving action management unit 40. The power consumption management unit 10 registers and manages the user's power consumption. The season / time zone management unit 20 registers and manages seasons and time zones arbitrarily defined in advance. The exception date calculation unit 30 specifies an exception date to be excluded from the measurement dates of the power consumption to be calculated for grasping the user's power usage tendency. The energy saving action management unit 40 prompts the user to take actions for energy saving support.

  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 registered every minute from 14:08 on August 13, 2010. An example 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 exception date calculation unit 30 includes at least a time-based power consumption amount summation unit 31, a time-period difference power consumption amount ratio calculation unit 32, and a season-specific exception date identification unit 33. The hourly power consumption summation unit 31 calculates the power consumption amount for each day (for one day) on the arbitrary day extracted from the power consumption registration table 14 by the power consumption extraction unit 13 and the day before the arbitrary day. Add up. That is, among the power consumption amounts accumulated in the power consumption amount registration table 14, the power consumption amount selected on the appropriate day and the power consumption amount on the previous day of the arbitrary date are set in advance based on the respective measurement dates and times. Divided into zones, and summed up the corresponding power consumption for each divided time zone, and combined power consumption by time zone on the day of the arbitrary day and total power consumption by time zone on the day before the arbitrary day Asking.

  The difference power consumption ratio calculation unit 32 by time zone calculates the ratio of the difference from the power consumption by the same time zone on the previous day of the power consumption summed by time zone by the power consumption summation unit 31 by time zone. To do. That is, the total power consumption by time zone of any day of the difference between the total power consumption by time zone of any day obtained by the power consumption amount summation unit 31 by time zone and the total power consumption by time zone of the day before the arbitrary day The ratio with respect to the amount is calculated as a difference power consumption amount ratio by time zone for each time zone.

  The seasonal exception date identification unit 33 compares the differential power consumption by time zone with the previous day calculated by the differential power consumption ratio calculation unit 32 by time zone with a predetermined threshold for each season. Identifies whether the day. That is, the difference power consumption ratio by time zone obtained by the difference power consumption ratio calculation unit 32 by time zone is compared with a predetermined threshold for each season to which the measurement date of power consumption belongs. As a result, if any of the differential power consumption ratios by time zone for each time zone is smaller than the threshold, the arbitrary day is an operation for analyzing the power consumption tendency of the user on the arbitrary day. On the other hand, it is determined that the day is a normal day to be used. On the other hand, if any one of the difference power consumption ratios by time zone for each time zone is equal to or greater than the threshold value, the arbitrary day is the arbitrary day. It is determined that the daily power consumption is an exceptional day that should be excluded from the calculation target for analyzing the power usage tendency of the user.

  This will be described in more detail as follows. In the hourly power consumption summing unit 31, the measurement date and time of the power consumption of the arbitrary day extracted from the power consumption registration table 14 and the previous day of the arbitrary day is used as the determination result of the time zone determination unit 23. Based on the six time zones shown in FIG. 3B, the corresponding power consumption amounts are added up for each time zone to obtain the total power consumption amount by time zone.

  In addition, in the difference power consumption amount ratio calculation unit 32 by time zone, the total power consumption by time zone obtained for each time zone by the time zone in the time zone by the time zone, and the previous day of the arbitrary day, respectively. The ratio of the difference from each of the total power consumption by time zone in the same time zone is calculated as the differential power consumption ratio by time zone by the following equation (1).

また、季節別例外日識別部３３においては、時間帯別差分消費電力量比演算部３２において求めた時間帯別の時間帯別差分消費電力量比に関する任意日の日付を季節判別部２２によって判別した結果に基づいて、図３（Ａ）に示した３つの季節（夏季、冬季、中間期）に分類して、それぞれの季節ごとにあらかじめ定めた閾値と、時間帯別差分消費電力量比演算部３２において求めた時間帯別差分消費電力量比とを比較することによって、当該任意日が、通常の日とは異なるユーザ行動になっている例外日に該当しているか否かを識別することになる。

In addition, in the seasonal exception date identification unit 33, the season discrimination unit 22 discriminates the date of an arbitrary date related to the difference power consumption ratio by time zone obtained by the time zone difference power consumption ratio calculation unit 32. Based on the results, the data is classified into the three seasons (summer season, winter season, and intermediate period) shown in FIG. 3 (A), and the threshold value determined for each season and the differential power consumption ratio calculation for each time zone are calculated. Identifying whether or not the arbitrary day corresponds to an exceptional day in which the user behavior is different from a normal day by comparing the difference power consumption ratio according to time zone obtained in the unit 32 become.

  The power consumption amount of an arbitrary day identified as an exceptional day in the seasonal exception date identification unit 33 is the power consumption of the calculation target that is implemented in order to grasp the user's normal power usage tendency as the energy saving support device 100. Assuming that it is inappropriate to use the amount, it is excluded from the power consumption of the calculation target in the power consumption calculation unit 41 of the energy saving action management unit 40.

  In addition, in the power consumption amount summation part 31 according to time zone, the difference power amount ratio calculation part 32 according to time zone, and the exception date identification part 33 according to season, if it is possible to accurately determine the exception date, it is not always necessary. For each of the six time zones, it is not necessary to perform calculations related to the respective power consumption amounts. For example, for each season, only one or a plurality of time zones that are more likely to be exceptional days are selected. You may make it implement the calculation regarding each power consumption only about the selected time slot | zone.

  For example, when the season is “summer” and “intermediate”, among the six time zones of “midnight”, “morning”, “morning”, “afternoon”, “evening”, “night” , Select four time zones of “late night”, “morning”, “afternoon”, and “night” as time zones when power consumption is relatively high on an ordinary day and exception days are more obvious. When the season is “winter”, the power consumption is relatively large on a normal day, and the exceptional days are more likely to be manifested as “midnight”, “afternoon”, “evening”, “night” Four time zones are selected.

  As described above, when calculating the power consumption of four time zones that differ for each season, the power consumption summation unit 31 for each time zone calculates the total power consumption by time zone for each of the six time zones. It is not necessary to calculate, and when the season is “Summer” and “Intermediate”, the time zone is combined for each of the four time zones of “midnight”, “morning”, “afternoon”, and “night”. When only the power consumption is calculated and the season is “winter”, the total power consumption by time zone in the four time zones of “midnight”, “afternoon”, “evening”, and “night” as the time zone. Only need to be calculated.

  The same applies to the difference power consumption ratio calculation unit 32 by time zone, and it is not necessary to calculate the difference power consumption ratio by time zone for each of the six time zones, and the seasons are “summer season” and “intermediate period”. In the case of “”, as the time zone, only the differential power consumption ratio by time zone in the four time zones “midnight”, “am”, “afternoon”, and “night” is calculated using the formula (1). When the season is “winter”, only the difference power consumption ratio by time zone in the four time zones of “midnight”, “afternoon”, “evening”, and “night” is used as the time zone. It is sufficient to calculate using

The same applies to the seasonal exception date identification unit 33. When the seasons are “summer” and “intermediate”, the threshold is set as the summer / intermediate threshold, for example,
0.1 ≦ summer / interim threshold ≦ 0.2
Any one of the differential power consumption ratios by time zone in the four time zones of “late night”, “am”, “afternoon”, and “night” can be any value within the range of When the ratio is equal to or greater than the mid-term threshold, the arbitrary day is determined to be an exceptional day. On the other hand, when the season is “winter”, the threshold is set as a winter threshold, for example,
Winter threshold = 0.1
Any one of the differential power consumption ratios by time zone in the four time zones of “midnight”, “afternoon”, “evening”, and “night” is at or above the winter threshold. In this case, it may be determined that the arbitrary day is an exceptional day.

  Here, the values described as the summer / intermediate threshold value and the winter threshold value are ground-based values that can be determined to be appropriate based on the results of the demonstration experiment by the monitor of 20 users, It is an example, and an appropriate value may be appropriately set according to the user's daily behavior pattern, and different threshold values may be used for summer and intermediate periods.

  The energy saving action management unit 40 includes at least a power consumption amount calculation unit 41, an energy saving action proposal unit 42, and a power consumption amount evaluation unit 43. The power consumption amount calculation unit 41 includes the exceptions identified by the seasonal exception date identification unit 33 of the exception date calculation unit 30 among the power consumption amounts registered in the power consumption amount registration table 14 of the power consumption amount management unit 10. The power consumption for calculating the user's power usage tendency is calculated by excluding the daily power consumption and using the remaining power consumption as a calculation target. The energy saving action proposing unit 42 proposes an energy saving action plan for encouraging the user to save energy based on the calculation result of the power consumption calculated by the power consumption calculating unit 41. The power consumption amount evaluation unit 43 evaluates the power consumption amount as a result of the proposal of the energy saving action plan.

  In the above description, an example of realizing each part of the power consumption management unit 10, the season / time zone management unit 20, the exception date calculation unit 30, and the energy saving behavior management unit 40 constituting the energy saving support device 100 by hardware. Although shown, 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, The power consumption management unit 10, the season / time zone management unit 20, the exception date calculation unit 30, and the energy saving action management unit 40 are respectively connected to the power consumption management step 10, the season / time zone management step 20, the exception date management step 30, Implement as energy conservation action management step 40 And it may be.

  When implemented as an energy saving support method or as a computer program, consumption included in each of the power consumption management unit 10, the season / time zone management unit 20, the exception date calculation unit 30, and the energy saving behavior management unit 40 Power 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, power consumption sum by time zone 31, difference by time zone The power consumption ratio calculating unit 32, the seasonal exception date identifying unit 33, the power consumption calculating unit 41, the energy saving action proposing unit 42, and the power consumption evaluating unit 43 are also respectively a power consumption measuring step 11 and a power consumption registering step 12. , Power consumption extraction step 13, season / time zone registration step 21, season discrimination step 22, time zone discrimination step 23, sum of power consumption by time zone Step 31, time zone difference power consumption ratio calculation step 32, seasonal exception Jan identification step 33, the power consumption calculation step 41, energy saving actions proposed step 42, will be implemented as a power consumption amount evaluation step 43.

  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 apparatus 100 of FIG. 1. As an example of the energy support method according to the present invention, it is arbitrarily selected from the required periods required for the energy saving support operation. 2 shows an example of an operation for identifying whether or not the day's power consumption is an exceptional day that should be excluded from the calculation target for energy saving.

  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). In the power consumption registration table 14, it is assumed that the power consumption registration unit 12 is registered in advance with the power consumption over the required period required for the energy saving support operation in the format shown in FIG. 2. .

  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. The definition for each user regarding the time zone of “midnight”, “morning”, “am”, “afternoon”, “evening”, and “night” is registered in the season / time zone registration table 24 in advance. To do.

  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 data relating to each power consumption for two days of an arbitrary day selected in an appropriately determined order and the previous day of the arbitrary day among the days within the required period required for the user's energy saving support operation. Are extracted from the power consumption registration table 14 together with the measurement date and time (step S1).

  Next, among the measurement dates and times of power consumption for two days extracted from the power consumption registration table 14 using the season determination unit 22 (that is, the arbitrary day and the day before the arbitrary day), By comparing with the definition contents registered in advance in the season registration table 24a of the season / time zone registration table 24, the season indicated by the measurement date / time is any one of “summer”, “intermediate”, and “winter”. Is determined (step S2).

  If it is determined that the season indicated by the measurement date / time is “Summer” (in the case of “Summer” in step S2), then the time zone determination unit 23 is used to extract the power consumption amount registration table 14. Compare the measurement date and time of power consumption for two days (that is, the arbitrary day and the previous day of the arbitrary day) with the definition contents for each user registered in advance in the time zone registration table 24b of the season / time zone registration table 24. By doing so, it is determined whether the time zone indicated by the measurement date / time is one of six time zones of “midnight”, “morning”, “am”, “afternoon”, “evening”, and “night” ( Step S31).

  Thereafter, based on the time zone determined in step S31, the power consumption amount by time zone summing unit 31 sets the power consumption amount for two days to each of the arbitrary day and the previous day of the arbitrary day. By dividing into the corresponding time zones and summing the power consumption by each time zone, the total power consumption by time zone for each of the six time zones is obtained for the given day and the day before the given day ( Step S41).

  Further, the total power consumption by time zone for each of the six time zones of the arbitrary day calculated by the power consumption amount summation unit 31 by time zone and the previous day of the arbitrary date is calculated as the difference power consumption by time zone. In the same time zone on the day before the arbitrary date of each of the six time zones, and the total power consumption by time zone obtained by the time zone by the ratio calculation unit 32 using the above-described equation (1). The ratio of the difference from the total power consumption by time zone is calculated as the difference power consumption ratio by time zone in summer (step S51).

  Finally, each of the six different time zone difference power consumption ratios calculated in the time zone difference power consumption ratio calculation unit 32 in the summer time period is used by the seasonal exception day identification unit 33 for the summer season. It is compared with a predetermined threshold, that is, a summer threshold. If any of the time period difference power consumption ratios in the summer by six time periods is a ratio lower than the summer threshold, the power consumption of the arbitrary day is set as the user power. On the other hand, it is determined that it is a normal day that should be a calculation target for analyzing the usage trend. If the ratio is equal to or greater than the threshold, the arbitrary day is determined to be an exceptional day that should be excluded from the calculation target for analyzing the power usage tendency of the user on the arbitrary day ( Step S61). The power consumption amount of the day identified as the exceptional day is excluded from the calculation target when analyzing the power usage tendency of the user for energy saving support in the power consumption amount calculation unit 41 of the energy saving action management unit 40. .

  When the season indicated by the measurement date is “intermediate period” or “winter season”, the process is performed in exactly the same manner as in the “summer season”.

  That is, when it is determined that the season indicated by the measurement date / time is “intermediate period” (in the case of “intermediate period” in step S2), it is extracted from the power consumption registration table 14 using the time zone determination unit 23. The measurement date and time of the power consumption for two days on the given day and the day before the given date are compared with the definition contents of the time zone registration table 24b, and the time zone indicated by the measurement date and time is “midnight”, “morning” ”,“ Morning ”,“ afternoon ”,“ evening ”, or“ night ”(step S32). The power consumption for each day is divided into the time zone corresponding to each of the arbitrary day and the previous day of the arbitrary day, and each of the six time zones is divided into the arbitrary day and the previous day of the arbitrary day. Determine the total power consumption (step 42).

  Further, the total power consumption by time zone for each of the six time zones of the arbitrary day and the previous day of the arbitrary day is calculated by the above-described formula (1) by the time zone differential power consumption ratio calculation unit 32. Then, the difference power consumption ratio by time zone in the interim period is calculated (step S52), and finally the difference power consumption ratio by time zone in the interim period by the six time periods is calculated as an exception by season. The date discriminating unit 33 compares it with a predetermined threshold value for the intermediate period, that is, an intermediate period threshold value. If any of the time period differential power consumption ratios in the six intermediate periods by time period is a ratio lower than the intermediate period threshold, the arbitrary day is determined as a normal day, If any one of the ratios is equal to or greater than the intermediate period threshold, the arbitrary day is determined as an exceptional day (step S62).

  If it is determined that the season indicated by the measurement date / time is “winter” (in the case of “winter” in step S2), an arbitrary date extracted from the power consumption registration table 14 using the time zone determination unit 23 And the measurement date and time of each of the power consumption for two days before the arbitrary date is compared with the definition content of the time zone registration table 24b, and the time zone indicated by the measurement date and time is “midnight”, “morning”, It is determined whether it is one of the six time zones of “AM”, “PM”, “EVEN”, or “NIGHT” (step S33). The power consumption amount of each of the six days of the week is divided into the time period corresponding to each of the arbitrary day and the day before the arbitrary day, and the total of the six time periods for the arbitrary day and the day before the arbitrary day Obtain power consumption (step S43)

  Further, the total power consumption by time zone for each of the six time zones of the arbitrary day and the previous day of the arbitrary day is calculated by the above-described formula (1) by the time zone differential power consumption ratio calculation unit 32. Then, the difference power consumption ratio by time zone in the winter season is calculated (step S53), and finally the difference power consumption ratio by time zone in the winter season for each of the calculated six time zones is identified as the exceptional day by season. The unit 33 compares the predetermined threshold for winter, that is, the winter threshold. If any of the time period differential power consumption ratios in the six intermediate time periods is lower than the winter threshold, the arbitrary day is determined as a normal day, If even one of the ratios is equal to or greater than the winter threshold, the arbitrary day is determined as an exceptional day (step S63).

  In the description of the flowchart of FIG. 4 described above, the time zones for calculating the power consumption are 6 midnight, “morning”, “morning”, “afternoon”, “evening”, and “night”. However, as described above, if it is possible to reliably identify exceptional days, not only all six time zones but only one or more limited time zones are covered. You may make it do. In other words, it may be limited to a time zone in which the difference between the power consumption amount on the day when an exceptional situation such as absence is occurring and the power consumption amount on a normal day is likely to become obvious. Further, when the time zone for calculating the power consumption is limited, the target time zone may be set to a different time zone depending on the season.

  Furthermore, regarding the season, in the description of the flowchart of FIG. 4, the operation sequence is different for each of “summer season”, “intermediate period (spring, autumn)”, and “winter season”, but this is not a limitation. Depending on the season, there is no need to change the time period for calculating power consumption, and there is no need to change and set the threshold used to identify exceptional days. You may make it integrate with an operation | movement sequence. For example, as described above, “summer season” and “intermediate period” may be integrated as the same operation sequence.

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 ... exception date calculation unit, 31 ... time Power consumption summation unit by band, 32 ... Differential power consumption ratio calculation unit by time zone, 33 ... Exception day identification unit by season, 40 ... Energy saving action management unit, 41 ... Power consumption calculation unit, 42 ... Energy saving action proposal Unit, 43 ... power consumption amount evaluation unit, 100 ... energy saving support device.

Claims (8)

The power consumption of the load device used by the user is measured and accumulated periodically at a predetermined time interval, and the user calculates the accumulated power consumption every time a predetermined time period elapses. An energy-saving support device that has a mechanism to identify load devices where power consumption is expected to be reduced by analyzing power usage trends and to provide users with energy-saving action plans corresponding to the reduction in power consumption of the load devices There,
Of the accumulated power consumption for each time interval, the power consumption on an arbitrary day appropriately selected and the power consumption on the day before the arbitrary day are set for each time zone set in advance based on each measurement date and time. Dividing and adding the corresponding power consumption for each divided time zone, the total power consumption by time zone on the arbitrary day and the time calculated as the total power consumption by time zone on the day before the arbitrary day The power consumption summation unit by band,
The total consumption by time zone of the arbitrary day of the difference between the total power consumption by time zone of the arbitrary day and the total power consumption by time zone of the day before the arbitrary day obtained in the power consumption amount by time zone A difference power consumption ratio calculation unit by time zone that calculates a ratio to the power consumption as a difference power consumption ratio by time zone for each time zone, and
Results of comparing the difference power consumption ratio by time zone obtained by the time zone difference power consumption ratio calculation unit with a predetermined threshold value for each season to which the measurement date of power consumption belongs If any of the differential power consumption ratios by time period for each time period is less than the threshold value, the arbitrary day is an operation for analyzing the power consumption tendency of the user on the arbitrary day. It is determined that it is a normal day to be used as a target. On the other hand, if any one of the differential power consumption ratios by time zone for each time zone is greater than or equal to the threshold value, the arbitrary day is A seasonal exception date identification unit that determines that the power consumption amount on any day is an exception day that should be excluded from the calculation target for analyzing the power usage trend of the user;
An energy saving support device characterized by comprising at least.   2. The energy saving support apparatus according to claim 1, wherein the threshold used for determining whether or not an exception day is an exception day in the seasonal exception date is arbitrarily defined in summer, winter, and spring or autumn. An energy-saving support device, which is divided into three corresponding intermediate periods and determined appropriately for each season. The power consumption of the load device used by the user is measured and accumulated periodically at a predetermined time interval, and the user calculates the accumulated power consumption every time a predetermined time period elapses. An energy-saving support method that has a mechanism to identify load devices that are expected to reduce power consumption by analyzing power usage trends and provide users with energy-saving action plans corresponding to the power consumption reduction of the load devices. There,
Of the accumulated power consumption for each time interval, the power consumption on an arbitrary day appropriately selected and the power consumption on the day before the arbitrary day are set for each time zone set in advance based on each measurement date and time. Dividing and adding the corresponding power consumption for each divided time zone, the total power consumption by time zone on the arbitrary day and the time calculated as the total power consumption by time zone on the day before the arbitrary day The power consumption summation step by band,
Total power consumption by time zone of any day of the difference between the total power consumption by time zone of the arbitrary day obtained in the step of total power consumption by time zone and the total power consumption by time zone of the day before the arbitrary date A differential power consumption ratio calculation step by time zone for calculating a ratio to the power consumption as a differential power consumption ratio by time zone for each time zone; and
Results of comparing the difference power consumption ratio for each time zone obtained in the difference power consumption ratio calculation step for each time zone with a predetermined threshold for each season to which the measurement date of power consumption belongs If any of the differential power consumption ratios by time period for each time period is less than the threshold value, the arbitrary day is an operation for analyzing the power consumption tendency of the user on the arbitrary day. It is determined that it is a normal day to be used as a target. On the other hand, if any one of the differential power consumption ratios by time zone for each time zone is greater than or equal to the threshold value, the arbitrary day is A seasonal exception day identification step for determining that the power consumption amount on any day is an exception day to be excluded from the calculation target for analyzing the power usage tendency of the user;
An energy saving support method characterized by comprising at least   4. The energy saving support method according to claim 3, wherein the threshold used for determining whether or not an exceptional day is determined in the seasonal exception day identification step is arbitrarily defined in summer, winter, and spring or autumn. An energy-saving support method characterized in that it is determined appropriately for each season divided into three corresponding intermediate periods.   5. The energy saving support method according to claim 4, wherein the threshold value for summer and intermediate periods is an arbitrary value within a range of 0.1 to 0.2, and the threshold value for winter is 0.1. A featured energy saving support method.   6. The energy saving support method according to claim 3, wherein six time zones of midnight, morning, morning, afternoon, evening, and night are arbitrarily defined in advance for each user, and the seasonal exception day identification step is performed. As the time zone of the differential power consumption ratio by time zone used for determining whether or not it is an exceptional day, any one of the six time zones arbitrarily defined in advance for each user for each season An energy saving support method characterized by selecting a plurality of time zones.   The energy saving support method according to claim 6, wherein a time zone of the difference power consumption ratio by time zone used for determining whether or not the day is an exception day in the seasonal exception day identification step is arbitrarily set for each user. Of the six time zones defined in advance, if the season is summer and intermediate, the four zones are late night, morning, afternoon, and night. If the season is winter, the four zones are late night, afternoon, evening, and night. Energy saving support method characterized by time zone.   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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