JP2000221064A - Method and device for breaking down gas consumption by service field into classification by uses, and recording medium thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To precisely break down gas consumption by service field by uses in relatively simple algorithm. SOLUTION: Gas consumption for a kitchen, which differs in resonse to household circumstances of a gas user, is found precisely at first using attribute information of the gas user such as the number of family members, the number of gas equipment for the kitchen, and the type of residence. Then, gas consumption for hot-water supply during the period when gas is not rised for space heating is found utilizing the fast that the total gas consumption deering the period not using gas for space heating is the sum of consumption for the kitchen and the hot-water supply, and a gas consumption for the hot-water supply during the period of using gas for space heating is found using a correlation between the gas consumption during the period not using gas for space heating and an ambient temperature. The gas consumptions for space heating and for hot-water supply are subtracted from the total gas consumption to find the gas consumption for the space heating.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method, an apparatus, and a method for decomposing gas usage per unit period, such as monthly, for each household, for kitchen, hot water supply and heating purposes. The present invention relates to a recording medium on which a computer program for use-specific decomposition is recorded.

[0002]

2. Description of the Related Art When estimating gas demand in order to make a gas supply plan, a gas appliance sales plan, etc., or when a gas user plans to save energy, the past gas consumption of the gas user is considered. It is necessary to analyze trends. In general, households, small businesses, etc. use gas for kitchens,
It is roughly divided into hot water supply and heating. Kitchen gas usage is largely unaffected by meteorological factors and is almost constant throughout the year. The amount of gas used for hot water supply is affected by weather factors such as temperature and water temperature that change with the season. The amount of gas used for heating becomes zero depending on the season.

[0003] As described above, the gas usage shows a trend of change depending on the application. Therefore, when analyzing the trend of the past gas usage as described above, it is highly accurate to analyze only the trend of the total usage. Demand forecasting can be difficult. In order to solve this problem, data on the total gas consumption at each time is collected, and the type of gas appliance is specified based on the presence / absence of the consumption and the amount of change. A device that graphs the change over time in the amount of gas used for hot water supply and heating (Japanese Patent Application Laid-Open No. 7-92001) has been proposed.

[0004]

However, in the above-described analyzer, a large amount of data relating to the total gas usage at each time is collected and the trend of the gas usage is analyzed, so that the analysis algorithm is complicated. As the number of gas appliances increases, the analysis time becomes longer.

The present invention has been made in order to solve such problems. First, using the attribute information of gas users such as the number of households, the number of gas appliances for kitchen use, and the type of residence, Although it is almost constant throughout the year without being affected by weather factors, the amount of kitchen gas used that varies depending on the household situation of the gas user is accurately obtained. Next, using the fact that the total gas consumption during the period when the heating is not used is the sum of the amount for the kitchen and the period for the hot water supply, the amount of the gas for the hot water supply during this period is obtained. Further, the amount of gas for hot water supply when the heating is used is obtained by using the correlation between the amount of gas for hot water supply when the heating is not used and the temperature. The amount of gas for heating is calculated by subtracting the amount of gas for kitchen and hot water from the total amount of gas used. Accordingly, it is an object of the present invention to provide a method and apparatus for accurately decomposing gas usage for each application with a relatively simple algorithm, and to provide a recording medium in which a computer program of an application-specific decomposition algorithm for gas usage is recorded.

[0006]

According to a first aspect of the present invention, there is provided a method for decomposing a gas usage amount according to a use. In the decomposition method for each usage of gas to be used, the attribute information of the measuring unit is defined, which defines the amount of gas for kitchen of the measuring unit, and the kitchen for the unit period of the measuring unit is obtained based on the attribute information. It is characterized in that the usage gas usage is extracted.

[0007] The second invention provides a method for decomposing gas usage by use, wherein the gas usage for kitchen and hot water supply is extracted from the gas usage in a unit period for each measuring unit in which the gas usage is measured. In the decomposition method according to the usage of the amount, the attribute information of the measuring unit is obtained, which specifies the amount of the kitchen gas used for the measuring unit, and the usage of the kitchen gas for the unit period of the measuring unit is performed based on the attribute information. Extract the amount, subtract the amount of kitchen gas used during the unit period from the amount of gas used during the unit period included in the period when heating is not used, extract the amount of gas used for hot water supply during the unit period, and use heating. The period in which heating is used based on the correlation between the amount of gas for hot water supply in a plurality of unit periods included in the non-period and the temperature in the plurality of unit periods, and the temperature in the unit period included in the period in which heating is used Unit hot water gas included in And extracting the dosage.

[0008] In the third invention, in addition to the second invention, the method for decomposing a gas usage amount according to a use is based on a gas usage amount for a kitchen and a hot water supply for a unit period included in a heating period. The heating gas usage amount for the unit period is extracted by subtracting the usage gas usage amount.

The decomposition apparatus according to the fourth aspect of the present invention is a gas usage amount extracting apparatus for extracting a gas usage amount for a kitchen from a gas usage amount in a unit period for each measuring unit in which the gas usage amount is measured. In another disassembly device, means for acquiring attribute information of the measuring unit, which defines the amount of kitchen gas used for the measuring unit, and, based on the attribute information, the amount of kitchen gas used for the unit period of the measuring unit. Means for extracting

[0010] The gas use amount decomposing apparatus according to the fifth invention is a gas use amount extraction apparatus for extracting gas amounts for kitchen use and hot water supply from gas use amounts in a unit period for each measurement unit in which the gas use amount is measured. In the decomposition apparatus for each use of the amount, means for acquiring the attribute information of the measuring unit, which defines the amount of kitchen gas used for the measuring unit, and for the kitchen of the unit period of the measuring unit based on the attribute information. Means for extracting the gas usage amount, and subtracting the kitchen gas usage amount for the unit period from the gas usage amount for the unit period included in the period in which the heating is not used, to extract the hot water supply gas usage for the unit period. Means, based on the correlation between the amount of gas for hot water supply for a plurality of unit periods included in the period when heating is not used and the temperature of the plurality of unit periods, and based on the temperature of the unit period included in the period using heating. Included in the period of using the heating Characterized by comprising a means for extracting the hot water supply gas consumption of that unit period.

The decomposition apparatus according to the sixth aspect of the present invention, in addition to the fifth invention, further comprises, based on the gas consumption in a unit period included in the period in which the heating is used, the gas consumption for kitchen and the hot water supply in the unit period. Means for extracting the heating gas usage amount for the unit period by subtracting the usage gas usage amount.

A recording medium according to a seventh aspect of the present invention is a computer program for extracting a gas usage amount for a kitchen from a gas usage amount in a unit period for each measuring unit in which the gas usage amount is measured, and decomposing the gas usage amount for each application. Is recorded, and in a computer-readable recording medium, a program code means for defining, by a computer, input of attribute information of the measuring unit, which defines the amount of kitchen gas used by the measuring unit; and A computer program including program code means for causing a computer to extract the amount of kitchen gas consumed during a unit period of the measuring unit based on the attribute information is recorded.

The recording medium according to the eighth invention is characterized in that the gas consumption for kitchen and hot water supply is extracted from the gas consumption in the unit period for each measuring unit in which the gas consumption is measured, and the gas consumption is decomposed for each application. Computer program is recorded,
On a computer-readable recording medium,
Program code means for allowing a computer to receive input of attribute information of the measuring unit, which specifies the amount of kitchen gas used for the measuring unit, and using the kitchen gas for the unit period of the measuring unit based on the attribute information. Program code means for causing the computer to extract the amount, and subtracting the amount of kitchen gas used during the unit period from the amount of gas used during the unit period included in the period when heating is not used, to obtain the amount of hot water gas used during the unit period. Program code means to be extracted by the computer, correlation between the amount of hot water supply gas used in a plurality of unit periods included in the period in which heating is not used and the temperature in the plurality of unit periods, and the unit included in the period in which heating is used Program code means for causing a computer to extract the amount of gas for hot water supply for a unit period included in the period in which heating is used, based on the temperature in the period. No computer program is characterized in that it is recorded.

According to a ninth aspect of the present invention, in addition to the eighth aspect, the recording medium of the present invention is obtained by subtracting the amount of gas for kitchen and the amount of gas for hot water supply from the amount of gas used for a predetermined period. The method further comprises program code means for causing the computer to extract the quantity.

In the present invention, the measuring unit for measuring the amount of gas used refers to a home, a small-scale business establishment, or the like, whose used amount is measured by one gas meter. The unit period refers to a period such as a month which is a unit period of meter reading and billing, but is not limited to a month. In the present invention, first, using the attribute information of gas users, such as the number of households, the number of kitchen gas appliances owned, the form of housing, etc., it is almost constant throughout the year without being largely affected by weather factors, The amount of kitchen gas used, which varies depending on the household situation of the gas user, is calculated. In this way, the attributes specific to each gas user, such as the number of households, the number of owned kitchen gas appliances, and the type of dwelling, are used to determine the amount of kitchen gas used to determine the amount of kitchen gas used by each household. Since it is reflected, the amount of kitchen gas used can be accurately determined. Next, using the fact that the total gas consumption during the period when the heating is not used is the sum of the amount for the kitchen and the period for the hot water supply, the amount of the hot water supply gas during this period is determined. Further, for example, a regression line between the amount of gas for hot water supply when the heating is not used and the temperature is obtained, and the amount of gas for hot water supply corresponding to the temperature when the heating is not used is obtained by extrapolation of the regression line. Then, the amount of gas for hot water supply when the heating is used is obtained using the correlation between the amount of gas for hot water supply when the heating is not used and the temperature. Further, the amount of gas for heating is obtained by subtracting the amount of gas for kitchen and the amount of gas for hot water supply from the total amount of gas used.

[0016]

1 to 3 are graphs for explaining the principle of the present invention. FIG. 1 shows the use of gas for hot water supply in summer (when heating is not used: from May to November in this example). FIG. 2 is a graph illustrating the principle of the amount extraction, and FIG. 2 is a regression line between the amount of gas for hot water supply in summer and the temperature, and a regression line for water supply in winter (when heating is used: December to April in this example). FIG. 3 is a graph for extrapolation of gas usage, and FIG. 3 is a graph for explaining the principle of extraction of gas usage for heating.

The horizontal axes of FIGS. 1 and 3 indicate the meter reading monthly, the vertical axis indicates the gas consumption (m ³ / month), the horizontal axis of FIG. Represents the amount (m ³ / day). Also, in the following algorithm, the gas consumption can be used as it is, using the meter reading value of each month as it is, or by correcting the meter reading value according to the ratio of the number of days in each month from the first day of each month to the end of the month. You may use a value.

First, the amount of gas for kitchen use (m) is almost constant throughout the year almost unaffected by weather factors, but varies depending on the household situation of the gas user.
³ / month) is calculated by the following formula. Gas consumption for kitchen = a1 (m) x number of households + a2 (m) x living style + a3 (m) x number of gas cookers + b (m) ... (1) where m is monthly, a1 (m), a2 ( m) and a3 (m) are coefficients for m months, and b (m) is a constant term for m months (see Table 1). The house form is, for example, detached house: 1 and apartment house: 0. Table 1
Is the monthly regression coefficient (m ³ / month) of kitchen gas consumption obtained statistically.

[0019]

[Table 1]

Next, utilizing the fact that the summer gas consumption without heating is the sum of the hot water supply and the kitchen gas, the summer gas consumption for the summer calculated as described above is calculated as the total gas consumption. The hot water supply gas usage in summer is calculated by subtracting from the usage (see FIG. 1). In FIG. 2, ● represents the average daily gas consumption (m ³ / day) obtained by dividing the total gas consumption of each month of the gas user in the summer season (May to November) by the number of days. This is plotted in association with the average temperature. In the figure, the solid line is the regression line of the gas usage in the summer (7).

Further, it has been confirmed that the correlation between the amount of hot water supply gas and the temperature is approximated by a straight line having substantially the same slope regardless of whether the heating gas appliance is used or not. By using extrapolation of seven regression lines in the summer, the hot water supply gas usage in each month is calculated from the average temperature in each month in winter when the temperature is low.

Finally, the amount of gas used for heating in winter is calculated by subtracting the amount of gas used for cooking in the winter and the amount of gas used for hot water supply in the above-described manner from the total amount of gas used (FIG. 3).
reference).

Next, the algorithm of the decomposition method for each gas usage according to the present invention (hereinafter referred to as the method of the present invention) will be described with reference to the flowcharts of FIGS. The variables used in the flowchart are defined below. c: Household m: Monthly u: Usage (chu: kitchen, kyu: hot water supply, dan: heating) F (c, m, u): Check if household c owns gas appliances for usage u in m months Flag indicating (0: not owned, 1: owned) (this data is obtained in advance from a gas user by a questionnaire to the gas user, for example)

G (c, m, u): Gas consumption of use u in m months of household c
(M^Three/ Month) GA (c, m): Total gas consumption of household c in m months (m^Three/
Month) R (c, m, chu): in the m month of household c according to the above equation (1)
Gas consumption for kitchen (m ^Three/ Month) ND (m): Number of days in m month (day / month) T (m): Average temperature in m month (℃)

TA (c): y = [GA of household c at 5 ≦ m ≦ 11
(c, m) -G (c, m, chu)] / ND (m) (seven data) regression coefficient (m ³ / month · ° C) as a result of linear regression with x = T (m) TB (c): y = [GA (c, m) -G (c, m, c) of household c at 5 ≦ m ≦ 11
hu)] / ND (m) (seven data) as a result of linear regression with x = T (m) as a regression coefficient term (m ³ / month) Generally, regression coefficient A as a result of linearly regressing y with x And the constant term B are as follows. A = ｛n * Σ (xy)-(Σx) Σy｝ / ｛n * Σ (x ² )-(Σx) ² ｝ B = ｛Σ (x ² ) Σy-(Σx) Σ (xy)｝ / ｛ n * Σ (x ² )-(Σx) ² ｝ where n is the number of data

First, in steps S1 to S7 described below, the amount of kitchen gas used in household m in m months is calculated. F (c,
m, chu) is zero, that is, it is checked whether or not the household c owns the kitchen gas appliance in m months (step S1). If you have a kitchen gas appliance (n in step S1), whether F (c, m, kyu) is zero, ie, household c
It is checked whether or not has a hot water supply gas appliance in m months (step S2).

If the user has a gas appliance for hot water supply (n in step S2), the value obtained from the following equation is set as the gas consumption G (c, m, chu) for the kitchen (step S3). G (c, m, chu) = min ｛R (c, m, chu), GA (c, m) に よ り With this formula, the amount of hot water supply gas is prevented from becoming a negative value (see S12).

In step S2, if household c owns the kitchen gas appliance but does not own the hot water appliance in m months (y in step S2), F (c, m, dan)
Is checked, that is, whether or not a heating gas appliance is owned (step S4). If the user does not own the heating gas appliance (y in step S4), the total gas usage GA (c, m) of the household c in m months is calculated by using the kitchen gas usage G (c, m) in m months of the household c. m, chu) (step
S6).

On the other hand, if the user owns the heating gas appliance (n in step S4), it is checked whether m months are included in the period from May to November, that is, a period when heating is not used (step S4). Step S5). When m months are included in the heating usage period from December to April (n in step S5), the value obtained from the following equation is set as the kitchen gas usage amount G (c, m, chu) ( Step S3). G (c, m, chu) = min ｛R (c, m, chu), GA (c, m)｝

If m months are included from May to November (y in step S5), the total gas consumption GA of household c in m months
(c, m) is the gas consumption G (c, m,
chu) (step S6). The household c is m
If there is no kitchen gas appliance in the month (y in step S1), the kitchen gas usage amount G (c, m, chu) of the household c in m months is set to zero (step S7).

Next, by the following steps S8 to S13,
The amount of hot water supply gas consumed by the household c in m months is calculated. F
It is checked whether or not (c, m, kyu) is zero, that is, whether or not the household c has a gas appliance for hot water supply in m months (step S8). If you own a gas appliance for hot water supply (n in step S8), F (c, m, dan) is zero or not,
It is checked whether or not the household c has a heating gas appliance in m months (step S9).

If household c owns a gas appliance for hot water supply but does not own a gas appliance for heating in m months (y in step S9), the total gas consumption GA (m) of household c in m months c, m) from the above-described steps S1 to S7,
The value obtained by subtracting the amount of gas for kitchen G (c, m, chu) in household m for m months is the amount of gas for hot water supply in household m for m months
It is set as G (c, m, kyu) (step S12).

On the other hand, if the user owns a heating gas appliance (n in step S9), it is checked whether m months are included in the period from May to November, that is, a period in which heating is not used (step S9). Step S10). When m months are included in the heating use period from December to April (n in step S10), the value obtained from the following equation is set as the hot water supply gas use amount G (c, m, kyu) ( Step S11). G (c, m, kyu) = min [｛-TA (c) * T (m) + TB (c)｝ * ND (m), GA
(c, m) -G (c, m, chu)] With this equation, the heating gas usage is prevented from becoming a negative value (see S17).

If m months are included from May to November (y in step S10), the total gas consumption of household c in m months
The value obtained by subtracting the kitchen gas usage amount G (c, m, chu) of the household c for m months obtained from GA (c, m) in the above steps S1 to S7 for the hot water supply of the household c for m months Gas consumption G
(c, m, kyu) is set (step S12). If household c does not have a hot-water supply gas appliance in m months (y in step S8), household water c usage amount G (c, m, kyu) in m-month is set to zero. (Step S13
).

Further, by the following steps S14 to S21, the heating gas usage amount of the household c in m months is calculated. It is checked whether or not the total gas usage amount GA (c, m) = 0 of the household c in m months is zero (step S14). If it is not zero (n in step S14), it is checked whether or not F (c, m, dan) is zero, that is, whether or not the household c has a heating gas appliance in m months (step S15). ).

If the user owns the heating gas appliance (n in step S15), it is checked whether m months are included in the period from May to November, that is, a period in which heating is not used (step S16). ). If m months is included in the heating use period from December to April (n in step S16), m of household c obtained in steps S1 to S7 from the total gas usage in m months for household c Monthly kitchen gas consumption G (c, m, chu)
And the value obtained by subtracting the amount of gas G (c, m, kyu) for hot water supply in m months for household c obtained in steps S8 to S13,
It is set as the heating gas usage amount G (c, m, dan) in the month (step S17).

On the other hand, the total gas consumption GA (c, m) is not zero, and the household c owns a heating gas appliance in m months, but the m month uses heating from May to December. (Step S16, y), or if the total gas consumption GA (c, m) is not zero but household c does not have kitchen gas appliances in m months (step S15). It is checked whether or not y) and F (c, m, chu) are zero, that is, whether or not the household c has a kitchen gas appliance in m months (step S18).

If household c owns a kitchen gas appliance in m months (n in step S18), heating gas usage G (c, m, dan) in household m in m months is set to zero. (Step S19).

On the other hand, if the household c does not have a kitchen gas appliance in the month m (y in step S18), F (c,
(m, kyu) is zero, that is, it is checked whether or not the household c has a hot water supply gas appliance in m months (step S20). When the gas appliance for hot water supply is owned (n in step S20), the heating gas usage amount G (c, m, dan) of the household c in m months is set to zero (step S19).

However, despite the fact that the total gas consumption GA (c, m) is not zero (n in step S14), the household c has a heating gas appliance, a kitchen gas appliance, and a hot water gas appliance in m months. If none (y in S15, y in S18, y in S20) or if the total gas consumption GA (c, m) is not zero (n in step S14), the heating gas appliance is owned. (Step S15, n), but the m month is included in the period from May to December when heating is not used (Step S16, y), and both the kitchen gas appliance and the hot water appliance are not included. If it is not owned (y in S18, y in S20), it is determined that it cannot be disassembled (step S21). In addition, total gas consumption GA
If (c, m) is zero (y in step S14), the heating gas usage amount G (c, m, dan) of the household c in m months is set to zero (step S19).

Table 2 shows the expected values of the monthly error rates of the results of the decomposition of the gas consumption according to the method according to the present invention as described above. The expected value of the annual error rate of the estimated value of the amount of kitchen gas used by the method of the present invention is ± 42%, which is sufficiently accurate for practical use. The error rate here is determined for each gas user as follows. Error rate = | estimated value of used amount−true value of used amount | / (true value of used amount)

[0042]

[Table 2]

As described above, the gas consumption is decomposed according to the kitchen, hot water supply, and heating applications, so that the accuracy of the gas demand prediction for making a gas supply plan, a gas appliance sales plan, and the like can be improved. improves. Also, by grasping the past gas usage trends of gas users by application, it becomes easy to make energy saving plans, which helps to promote energy savings.

The computer program of the above-described algorithm of the method of the present invention can be provided by being preinstalled in a computer, or can be provided on a portable recording medium such as a CD-ROM or MO. Further, it can be provided via a line.

[0045]

As described above, the method, apparatus, and recording medium of the present invention use the attribute information of gas users, such as the number of households, the number of gas appliances for kitchen use, and the type of dwelling, to determine weather factors. It is almost unaffected throughout the year with little effect, but it accurately determines the amount of kitchen gas used that varies depending on the household situation of the gas user. Next, using the fact that the total gas consumption during the period when the heating is not used is the sum of the amount for the kitchen and the period for the hot water supply, the amount of the hot water supply gas during this period is determined. Further, the amount of gas for hot water supply when the heating is used is obtained by using the correlation between the amount of gas for hot water supply when the heating is not used and the temperature. The amount of gas for heating is calculated by subtracting the amount of gas for kitchen and hot water from the total amount of gas used. Therefore, an excellent effect of accurately decomposing the gas usage amount for each application with a relatively simple algorithm is achieved.

[Brief description of the drawings]

FIG. 1 is a graph illustrating the principle of the present invention (extraction of hot water supply gas consumption in summer).

FIG. 2 is a graph illustrating the principle of the present invention (extraction of the amount of gas for hot water supply in winter).

FIG. 3 is a graph illustrating the principle (extraction of the amount of gas used for heating) of the present invention.

FIG. 4 is a flowchart of an algorithm of the method of the present invention.

FIG. 5 is a flowchart of an algorithm of the method of the present invention.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2F030 CC13 CE32 2F031 AF03 5B049 AA02 BB14 CC11 EE01 GG04 GG07 GG09

Claims (9)

[Claims] 1. A method according to claim 1, wherein the amount of gas used for kitchen is extracted from the amount of gas used for kitchen from the amount of gas used in the unit period for each unit of measuring gas. Obtaining the attribute information of the measuring unit, defining the usage amount, and extracting the kitchen gas usage amount in the unit period of the measuring unit based on the attribute information, for each usage of the gas usage amount. Disassembly method. 2. A method according to claim 1, wherein said gas usage amount is extracted from the gas usage amount for kitchen and hot water supply from the gas usage amount in a unit period for each measurement unit in which the gas usage amount is measured. Acquire the attribute information of the measuring unit, which specifies the amount of gas used for kitchen, and extract the amount of gas used for cooking in the unit period of the measuring unit based on the attribute information, and include the amount of gas used for heating during the period when heating is not used. Subtracting the amount of kitchen gas used during the unit period from the amount of gas used during the unit period to extract the amount of gas used for hot water supply during the unit period, and for the plurality of unit periods included in the period when heating is not used Correlation between the gas usage and the temperature of the plurality of unit periods, and, based on the temperature of the unit period included in the period of using the heating, the amount of gas for hot water supply in the unit period included in the period of using the heating. Use of gas characterized by extraction Decomposition method according to use of quantity 3. The amount of gas for heating in the unit period is extracted by subtracting the amount of gas for kitchen and the amount of gas for hot water supply in the unit period from the amount of gas used in the unit period included in the period in which heating is used. 3. The method for decomposing gas usage according to application according to claim 2, wherein 4. A gas use amount decomposition apparatus for extracting a gas consumption amount for a kitchen from a gas consumption amount in a unit period for each measurement unit in which a gas consumption amount is measured, wherein the kitchen gas of the measurement unit is used. Defining a usage amount, a means for acquiring attribute information of the measuring unit, and a means for extracting a kitchen gas usage amount in a unit period of the measuring unit based on the attribute information. Decomposition equipment for the usage of gas used. 5. A gas-usage-use decomposition apparatus for extracting gas consumption for a kitchen and hot water supply from gas consumption for a unit period for each measurement unit in which the gas consumption is measured, wherein the measuring unit is Means for acquiring attribute information of the measuring unit, which defines the amount of gas used for kitchen, based on the attribute information,
Means for extracting the amount of kitchen gas used during the unit period of the measuring unit, and subtracting the amount of kitchen gas used during the unit period from the amount of gas used during the unit period included in the period in which heating is not used. Means for extracting the amount of gas for hot water supply, the correlation between the amount of gas for hot water supply for a plurality of unit periods included in the period in which heating is not used, and the temperature in the plurality of unit periods, and the period in which heating is used. Means for extracting the amount of gas for hot water supply for the unit period included in the period in which heating is used, based on the temperature of the unit period included therein. 6. A heating gas usage amount in the unit period is extracted by subtracting a kitchen gas usage amount and a hot water supply gas usage amount in the unit period from the gas usage amount in the unit period included in the heating use period. 6. The decomposition apparatus according to claim 5, wherein the apparatus further comprises means for performing the following. 7. A computer program for extracting a gas usage amount for a kitchen from a gas usage amount in a unit period for each measuring unit in which a gas usage amount is measured, and decomposing the gas usage amount for each use, is recorded. On a computer-readable recording medium, the program code means for allowing the computer to receive an input of attribute information of the measuring unit, which defines the amount of kitchen gas used for the measuring unit, based on the attribute information, A computer program including program code means for causing a computer to extract the amount of kitchen gas consumed during the unit period of the weighing unit. 8. A computer program for extracting gas consumption for kitchen and hot water supply from gas consumption in a unit period for each measuring unit in which gas consumption is measured and decomposing the gas consumption for each use is recorded. A computer-readable recording medium, wherein the program code means for allowing a computer to input attribute information of the weighing unit, which defines the amount of kitchen gas used by the weighing unit; Based on the program code means for causing the computer to extract the amount of kitchen gas used during the unit period of the measuring unit, and the amount of kitchen gas used during the unit period included in the period in which heating is not used, Program code means for causing a computer to extract the amount of hot water gas used for the unit period by subtracting Correlation between the amount of hot water gas used for the unit period and the temperature of the plurality of unit periods, and the temperature of the unit period included in the heating period based on the temperature of the unit period included in the heating period A recording medium characterized by recording a computer program including program code means for causing a computer to extract the amount of gas for hot water supply. 9. A program code means for subtracting the amount of gas for kitchen and the amount of gas for hot water supply for a predetermined period from the amount of gas used for a predetermined period and causing a computer to extract the amount of heating gas used for the period. 9. The recording medium according to claim 8, wherein: