Gas sales forecasting method, system, program and server

Abstract

To automate gas sales management based on gas usage at gas supply destinations.SOLUTION: A gas sales forecasting system is configured to: store guideline information from regular and irregular meter readings in a gas management file; determine whether the regular or irregular meter reading has been completed and whether both the regular and irregular meter readings have been completed, for each gas supply customer; calculate gas usage information and gas sales information for the gas supply customer whom regular meter reading has been completed; calculate a guideline difference between forecast guideline information and the guideline information at the time of the previous regular meter reading for the gas supply customer whom irregular meter reading has been completed; record the gas usage information and the gas sales information based on the guideline difference and a fee chart; record the gas usage information and the gas sales information at the time of the previous regular meter reading for gas supply customers whom regular and irregular meter readings have not yet been completed; generate aggregate information including the gas usage information and the gas sales information; generate presentation information including a list of forecast information by the gas supply customer and / or aggregate information based on the calculation of all gas supply customers; and receive the presentation information and display it on a screen.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a forecasting technology for forecasting sales using indication information of a gas meter at a gas supply destination, such as LPG (Liquefied Petroleum Gas). [Background technology]

[0002] LPG is generally delivered in cylinders from gas companies to gas supply destinations, and gas consumption is managed based on guideline information obtained from gas meters.

[0003] Regarding the prediction of gas usage, it is known that the system receives guideline information from the gas meter, compares each guideline information to calculate the gas usage, calculates the rate of change in past gas usage based on a comparison of multiple gas usage amounts for a specified period prior to the meter reading date of the guideline information, changes the gas usage amount according to this rate of change, and predicts the changed gas usage amount as the future gas usage amount (Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-254414 Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, the sales of LPG provided by gas companies depend on the gas usage of the gas supply destination. This gas usage is calculated based on the gas meter's guideline information. Once the guideline information for the current month is obtained, the gas usage for the current month is determined by subtracting the guideline information for the previous month from this guideline information. Gas sales information can be calculated by multiplying this gas usage by the fee per unit of usage. In other words, gas usage and gas sales cannot be calculated unless the guideline information for the current month is determined.

[0006] In addition to this billing system, the number of gas supply destinations and the gas usage volume at each destination are fluid. For this reason, gas suppliers are required to predict fluctuations in the number of gas supply destinations and their gas usage volumes when purchasing gas. In other words, gas sales forecasts based on the gas usage volumes of gas supply destinations are essential for gas purchasing. From a gas supplier's perspective, purchasing gas without basing it on gas sales forecasts can be untimely, which can worsen the supplier's financial condition. In view of the above, an object of the present invention is to automate gas sales management based on the gas usage amount of gas supply destinations. [Means for solving the problem]

[0007] In order to achieve the above object, according to one aspect of the gas sales forecasting method of the present invention, a management server It is carried out at regular intervals Regular meter reading or Meter reading other than the regular meter reading a step of acquiring guideline information by irregular meter reading, and storing the guideline information in a gas management file in association with gas supply destination information; When the indicator information is acquired from the gas supply destination by the periodic meter reading or the irregular meter reading, extracting gas supply destination information from the gas management file, and determining whether the regular meter reading or the irregular meter reading has been completed for each gas supply destination, or whether neither the regular meter reading nor the irregular meter reading has been completed; Among the gas supply destinations extracted from the gas management file Regarding gas supply destinations for which the regular meter reading has been completed, Based on the guideline information stored in the gas management file at the time of the periodic meter reading a step of calculating gas usage information and gas sales information; After the last regular meter readingThe method includes a step of calculating the difference between forecast guideline information and guideline information at the time of the last regular meter reading for gas supply destinations for which irregular meter reading has been completed, and recording gas usage information and gas sales information using this difference and a tariff; a step by the management server recording the gas usage information and gas sales information at the time of the last regular meter reading for gas supply destinations for which neither the regular meter reading nor the irregular meter reading has been completed; a step by the management server generating aggregate information including the gas usage information and the gas sales information; a step by the management server generating a list of forecast information for each gas supply destination and / or presentation information including the aggregate information based on the calculation for all gas supply destinations; and a step by an administrator terminal receiving the presentation information from the management server and presenting it on a screen.

[0008] In order to achieve the above object, according to one aspect of the gas sales prediction system of the present invention, the system includes a guideline information acquisition unit that acquires guideline information of a gas supply destination, a management server that cooperates with the guideline information acquisition unit and acquires the guideline information from the guideline information acquisition unit, and an administrator terminal that is connected to the management server, wherein the management server: It is carried out at regular intervals Regular meter reading or Meter reading other than the regular meter reading The management server acquires guideline information by irregular meter reading, associates the guideline information with gas supply destination information, and stores the information in a gas management file. When the indicator information is acquired from the gas supply destination by the periodic meter reading or the irregular meter reading, The management server extracts gas supply destination information from the gas management file, and determines for each gas supply destination whether the regular meter reading or the irregular meter reading has been completed, or whether neither the regular meter reading nor the irregular meter reading has been completed. Among the gas supply destinations extracted from the gas management file Regarding gas supply destinations for which the regular meter reading has been completed, Based on the guideline information stored in the gas management file at the time of the periodic meter reading Calculate gas usage information and gas sales information, The management server: After the last regular meter readingFor gas supply destinations for which irregular meter readings have been completed, the guideline difference between the predicted guideline information and the guideline information at the time of the previous regular meter reading is calculated, and gas usage information and gas sales information are recorded using this guideline difference and a tariff. The management server records the gas usage information and gas sales information at the time of the previous regular meter reading for gas supply destinations for which neither the regular meter readings nor the irregular meter readings have been completed. The management server generates aggregate information including the gas usage information and the gas sales information. Based on the calculations for all gas supply destinations, the management server generates a list of predicted information for each gas supply destination and / or presentation information including the aggregate information. The administrator terminal receives the presentation information from the management server and displays it on a screen.

[0009] In order to achieve the above object, according to one aspect of a program of the present invention, there is provided a program to be implemented by a computer, the program comprising: It is carried out at regular intervals Regular meter reading or Meter reading other than the regular meter reading A function to acquire guideline information by irregular meter reading, associate this guideline information with gas supply destination information, and store it in a gas management file; When the indicator information is acquired from the gas supply destination by the periodic meter reading or the irregular meter reading, a function of extracting gas supply destination information from the gas management file and determining for each gas supply destination whether the regular meter reading or the irregular meter reading has been completed, or whether neither the regular meter reading nor the irregular meter reading has been completed; Among the gas supply destinations extracted from the gas management file Regarding gas supply destinations for which the regular meter reading has been completed, Based on the guideline information stored in the gas management file at the time of the periodic meter reading A function to calculate gas usage information and gas sales information; After the last regular meter reading The computer realizes the following functions: for gas supply destinations for which irregular meter readings have been completed, calculate the guideline difference between predicted guideline information and the guideline information at the time of the previous regular meter reading, and use this guideline difference and a tariff to record gas usage information and gas sales information; for gas supply destinations for which neither regular meter readings nor irregular meter readings have been completed, record the gas usage information and gas sales information at the time of the previous regular meter reading; generate aggregate information including the acquired gas usage information and gas sales information; based on the calculations for all gas supply destinations, generate presentation information including a list of predicted information for each gas supply destination and / or the aggregate information; and provide the presentation information to an administrator terminal and display it on the screen of the administrator terminal.

[0010] In order to achieve the above object, according to one aspect of the server of the present invention, It is carried out at regular intervals Regular meter reading or Meter reading other than the regular meter reading an input unit that acquires guideline information by irregular meter reading; and storing the guideline information in a gas management file in association with gas supply destination information; When the indicator information is acquired from the gas supply destination by the periodic meter reading or the irregular meter reading, extracting gas supply destination information from the gas management file, and determining whether the periodic meter reading or the irregular meter reading has been completed for each gas supply destination; Among the gas supply destinations extracted from the gas management file Regarding gas supply destinations for which the regular meter reading has been completed, Based on the guideline information stored in the gas management file at the time of the periodic meter reading Calculate gas usage information and gas sales information, After the last regular meter reading The system includes a processing unit that calculates the guideline difference between the predicted guideline information and the guideline information at the time of the previous regular meter reading for gas supply destinations for which the irregular meter reading has been completed, calculates the guideline difference between the predicted guideline information and the guideline information at the time of the previous regular meter reading, and records gas usage information and gas sales information using this guideline difference and a price list; for gas supply destinations for which neither the regular meter reading nor the irregular meter reading has been completed, records the gas usage information and gas sales information at the time of the previous regular meter reading, and generates aggregate information including the gas usage information and the gas sales information; and generates a list of predicted information for each gas supply destination and / or presentation information including the aggregate information based on the calculation for all gas supply destinations, and an output unit that outputs the presentation information. [Effects of the Invention]

[0011] According to the present invention, any of the following effects can be obtained. (1) Gas sales management can be automated based on the gas usage volume of the gas supply destination, which reduces the human burden and speeds up processing.

[0012] (2) Since the predicted gas consumption and predicted gas sales information of the gas supply destination is calculated, this predicted gas sales information can be used for demand forecasting and investment information.

[0013] (3) It is possible to grasp trends in gas demand from forecasted gas usage or forecasted gas sales information, and to plan equipment deterioration and investment timing.

[0014] (4) The calculation dates for gas usage at gas supply destinations can be spread out, thereby reducing the burden of calculating forecasts for gas usage and sales. [Brief explanation of the drawings]

[0015] [Figure 1] 4 is a flowchart showing a gas management process according to the first embodiment. [Figure 2] 1 is a diagram illustrating a gas management system according to a first embodiment. [Figure 3] FIG. 10 is a diagram showing a gas management file group. [Figure 4] 1A is a diagram showing a gas supply information section of a gas management file, and FIG. 1B is a diagram showing a history information section of a gas management file. [Figure 5] FIG. 10 is a diagram showing the relationship between guideline information and the calculation time point of gas usage. [Figure 6] 1A is a diagram showing the transition of gas usage, and FIG. 1B is a diagram showing the transition of gas sales information. [Figure 7] 10 is a diagram showing the relationship between the transition of guideline information, the time of meter reading, and the time of calculation of gas usage. FIG. [Figure 8] 10 is a flowchart showing a processing procedure for recalculating predicted gas sales information. [Figure 9] FIG. 10 is a diagram illustrating a monitoring operation of gas usage. [Figure 10] FIG. 10 is a diagram illustrating a gas management system according to a second embodiment. [Figure 11] FIG. 2 is a diagram illustrating hardware of a gas supply destination terminal. [Figure 12] FIG. 10 is a diagram showing the presentation of gas sales information on an administrator terminal. [Figure 13] FIG. 10 is a diagram showing the presentation of gas sales information at a gas supply destination terminal. [Figure 14] FIG. 10 is a diagram showing a processing sequence of gas management. [Figure 15] 10 is a flowchart showing a processing procedure including a response process to request information from a gas supply destination terminal. [Figure 16] 10 is a flowchart showing a gas management process according to a third embodiment. [Figure 17] FIG. 11 is a diagram showing the presentation of predicted gas sales information according to the third embodiment. [Figure 18] 10 is a flowchart showing a gas management process according to a fourth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0016] [First embodiment] Fig. 1 shows a gas management process according to the first embodiment. The configuration shown in Fig. 1 is an example, and the present invention is not limited to this configuration. This gas management process includes identifying the gas supply destination 10 (S101), identifying the gas management file 22 (S102), obtaining guideline information S (S103), monitoring the calculation time T of gas usage information G (S104), calculating the gas usage information G (S105), calculating gas sales information M (S106), monitoring the calculation time Tx of predicted gas usage information Gx (S107), calculating the predicted gas usage information Gx (S108), calculating the predicted gas sales information Mx (S109), storing in the gas management file 22 (S110), generating presentation information (S111), monitoring the time of sending the presentation information (S112), and sending the presentation information (S113).

[0017] Identification of gas supply destination 10 (S101): Gas supply destinations 10-1, 10-2, ..., 10-N (Fig. 2, hereinafter simply referred to as "gas supply destination 10") are gas users, such as gas consumers, who have contracts with gas companies, install gas containers 48 (Fig. 10), and consume LPG from these gas containers 48. Gas users may be either individuals or corporations (businesses). The amount of LPG used is determined by the meter information of the gas meter 50 (Fig. 10). Therefore, such gas supply destinations 10 are identified as targets for gas sales forecasting. Identifying gas management file 22 (S102): The gas management file 22 is created for each gas supply destination 10 to form a gas management database and is used to manage gas supply and gas sales. Based on the identification of the gas supply destination 10, the management server 4 (FIG. 2) identifies the gas management file 22 for that gas supply destination 10. Acquisition of guideline information S (S103): The guideline information S obtained by the gas meter 50 may be obtained from the communication unit 56 (FIG. 10) installed in the gas meter 50 of each gas supply destination 10, or may be obtained from the guideline information source 20 (FIG. 2). The management server 4 may acquire the guideline information S obtained from the gas meter 50 of the gas supply destination 10 at regular meter reading intervals, such as daily or monthly. This guideline information S is stored in the gas management file 22. Monitoring the calculation time T of the gas usage information G (S104): The management server 4 has a timer function including a calendar function, monitors the calculation time T of the gas usage information G, and generates the calculation time T of the gas usage information G for each gas supply destination 10. When this calculation time T arrives, the system transitions to a calculation mode for the predicted gas usage information Gx.

[0018] Calculation of gas usage amount information G (S105): The management server 4, which has acquired the guideline information S obtained from the gas meter 50 of the gas supply destination 10, calculates the gas usage amount information G of the gas supply destination 10 on a daily or monthly basis. Calculation of gas sales information M (S106): The management server 4 calculates, for example, gas sales information M from the previous calculation point to the current calculation point by using the gas usage amount information G. This gas sales information M is stored in the gas management file 22. Monitoring the calculation time Tx of the predicted gas usage information Gx (S107): The management server 4 monitors the calculation time Tx of the predicted gas usage information Gx using the timer function described above, and generates the calculation time Tx of the predicted gas usage information Gx for each gas supply destination 10. When this calculation time Tx arrives, the system transitions to a calculation mode for the predicted gas usage information Gx. Calculation of predicted gas usage information Gx (S108): The management server 4 calculates the predicted gas usage information Gx using the previously obtained guideline information S. The management server 4 calculates, for example, predicted gas usage information Gx from the time of the previous meter reading to the time of the current meter reading by using the guideline information S. This predicted gas usage information Gx is stored in the gas management file 22.

[0019] Calculation of predicted gas sales information Mx (S109): The management server 4 calculates predicted gas sales information Mx for each gas supply destination 10 using the predicted gas usage information Gx described above and the contract fee information (billing information) set for the gas supply destination 10. Store in gas management file 22 (S110): Like the guideline information S, the predicted gas sales information Mx is stored in the gas management file 22 in association with the identification information of the gas supply destination 10. Generation of presentation information (S111): The management server 4 generates presentation information in response to the calculation of the predicted gas sales information Mx. This presentation information includes either or both of predicted gas usage information Gx and predicted gas sales information Mx associated with the identification information of the gas supply destination 10 or all gas supply destinations 10. Monitoring the timing of sending the presented information (S112): The management server 4 is equipped with a calendar function to monitor the timing of sending the presented information, and sends the presented information for each gas supply destination 10 based on the information stored in the gas management file 22. Transmission of presented information (S113): This presented information is transmitted to the gas supply destination terminal 12. The management server 4 monitors the calculation time Tx of the predicted gas sales information Mx using the timer function described above, and generates the calculation time Tx of the predicted gas sales information Mx for each gas supply destination 10. The arrival of this calculation time Tx may trigger a process of transitioning to a calculation mode for the predicted gas sales information Mx.

[0020] <Gas Management System 2> Fig. 2A shows the gas management system 2. The configuration shown in Fig. 2A is an example, and the present invention is not limited to such a configuration. This gas management system 2 is equipped with a management server 4, an information presentation unit 6, and an information input unit 8. The management server 4 is installed at a gas company that manages the supply of LPG to each gas supply destination 10 (=10-1, 10-2, ..., 10-N), gas sales, etc. This management server 4 uses a computer with a communication function, and executes information processing such as gas sales for each gas supply destination 10 from the acquired guideline information. This information processing involves a) Creation and updating of gas management file 22 b) Management of gas supply destinations 10 c) Obtaining guideline information S-1, S-2, ..., SN d) Generation of calculation time for gas usage e) Calculation of gas usage information G-1, G-2, ..., GN f) Calculation of gas sales information M-1, M-2, ..., MN g) Generation of predicted calculation time for predicted gas consumption h) Calculation of predicted gas usage information Gx-1, Gx-2, . . . , Gx-N i) Calculation of predicted gas sales information Mx-1, Mx-2, . . . , Mx-N j) Generation of presentation information and information presentation k) Transmission of presented information These include: The information presentation unit 6 may be any information presentation device directly connected to the management server 4, such as an LCD (Liquid Crystal Display) or an administrator terminal 14 (B in Figure 2) that is controlled by wire or wirelessly with the management server 4, as long as it is capable of sending and receiving information with the management server 4 and presenting information including the gas management file 22. Input devices such as a keyboard and a touch panel are used for the information input unit 8. This information input unit 8 is used for inputting various information including input for identifying the gas supply destination 10, and for selecting a processing mode. The information presentation unit 6 and the information input unit 8 may be configured as an administrator terminal 14, for example.

[0021] A gas container 48 and a gas meter 50 are installed at each gas supply destination 10, and indicator information is obtained from each gas meter 50. This indicator information may be either a meter reading by a meter reader or so-called big data from a gas meter management system. Gas supply destination terminals 12-1, 12-2, ..., 12-N (hereinafter simply referred to as "gas supply destination terminals 12") are information terminals provided at gas supply destinations 10. In other words, each gas supply destination terminal 12 is connected to management server 4, for example, via a public line, and is capable of sending and receiving information.

[0022] <Administrator terminal 14> 2B shows an administrator terminal 14 that functions as an information presentation unit 6 and an information input unit 8. This administrator terminal 14 is capable of sending and receiving information via communication with the management server 4, and is equipped with a monitor 16 and an operation input unit 18. The monitor 16 functions as the information presentation unit 6, and the operation input unit 18 functions as the information input unit 8. The monitor 16 may be equipped with a touch panel that functions as the operation input unit 18.

[0023] <Acquisition of guideline information S for gas supply destination 10> The guideline information S for each gas supply destination 10 is basic information for calculating gas usage information G and gas sales information M for the gas supply destination 10. This guideline information S may be obtained from the gas supply destination 10 at the time of regular or occasional meter reading, or may be obtained from the guideline information source 20. This guideline information source 20 is a gas information management system that manages gas supply destination information and guideline information associated with the time of meter reading.

[0024] <Gas Management File 22> 3 shows gas management files 22-1, 22-2, ..., 22-N. A group of files including gas management files 22-1, 22-2, ..., 22-N (hereinafter simply referred to as "gas management files 22") created for each gas supply destination 10 constitutes a management database that stores gas management information for the gas supply destination 10. Each gas management file 22 stores gas management information for each gas supply destination 10. The gas management file 22 of this embodiment includes a gas supply destination information section 24, a gas supply information section 26, an acquisition condition information section 28, a meter reading time information section 30, a guideline information section 32, a calculation time information section 34, a gas usage information section 36, a gas sales information section 38, a predicted gas usage information section 40, a predicted gas sales information section 42, an accumulation information section 44, and a history information section 46. The gas supply destination information section 24 stores identification information for identifying the gas supply destination 10. The gas supply information section 26 (A in FIG. 4) stores attribute information relating to gas supply at the gas supply destination 10.

[0025] The acquisition condition information section 28 stores information regarding the acquisition conditions for guideline information for the gas supply destination 10, such as acquisition methods and acquisition information such as meter reading by a meter reader, automatic transmission of guideline information from the gas meter 50, and provision from the guideline information source 20. The meter reading time information unit 30 stores time information indicating the time of meter reading. The indicator information unit 32 stores indicator information S obtained at the time of meter reading. The calculation time information unit 34 stores time information indicating the time of calculation of gas usage information G, gas sales information M or predicted gas usage information Gx, and predicted gas sales information Mx. The gas usage information section 36 stores gas usage information G calculated from the guideline information S. The gas sales information section 38 stores gas sales information M corresponding to the gas usage information G. The predicted gas usage information section 40 stores predicted gas usage information Gx predicted from the gas usage information G. The predicted gas sales information section 42 stores predicted gas sales information Mx corresponding to the predicted gas usage information Gx. The accumulation information section 44 stores accumulation information such as guideline information S and gas sales information M. The history information section 46 (B in FIG. 4) stores various information including abnormal gas usage, recalculation of predicted gas usage, and transmission of presentation information.

[0026] 4A shows the gas supply information section 26 of the gas management file 22. This gas supply information section 26 has a container capacity section 26-1, a container number section 26-2, a container replacement timing section 26-3, and an average gas usage section 26-4. The container capacity section 26-1 stores capacity information about the gas containers 48 installed at the gas supply destinations 10. The container number section 26-2 stores information about the number of installed gas containers 48. The container replacement timing section 26-3 stores time information (calendar information) indicating the container replacement timing for each gas supply destination 10. The average gas usage section 26-4 stores gas usage information G that indicates the average gas usage for each gas supply destination 10. The container capacity, the number of installed containers, the container replacement timing, and the average usage are reference information used to determine abnormal usage.

[0027] 4B shows the history information section 46 of the gas management file 22. This history information section 46 includes an abnormality information section 46-1, a recalculation information section 46-2, and a presentation information transmission record section 46-3. In the abnormality information section 46-1, when an abnormality occurs in the amount of gas used, abnormality information including whether or not the abnormality occurred, the cause of the abnormality, the date and time of the abnormality, etc. is stored. The recalculation information section 46-2 stores recalculation information indicating recalculation of gas usage information G, gas sales information M, predicted gas usage information Gx, and predicted gas sales information Mx when an abnormality occurs in gas usage. The presented information transmission recording unit 46-3 stores transmission record information including the information presented from the management server 4 to the gas supply destination terminal 12 and the time of transmission.

[0028] <Transition of calculation time T of gas usage information G and guideline information S> In Figure 5, the horizontal axis represents the calculation time point and the vertical axis represents the guideline information, showing the transition of the guideline information relative to the calculation time point. The calculation points for gas usage, Tn-4, Tn-3, Tn-2, Tn-1, and Tn, are the current point in time, Tn, and are calculated by counting backward from Tn at regular time intervals. For example, the calculation points are calculated in monthly increments. The guideline information Sn-4, Sn-3, Sn-2, Sn-1, and Sn is the guideline information used to calculate the gas usage at the calculation times Tn-4, Tn-3, Tn-2, Tn-1, and Tn. In other words, the guideline information Sn-4, Sn-3, Sn-2, Sn-1, and Sn does not have to be information obtained at the calculation times Tn-4, Tn-3, Tn-2, Tn-1, and Tn. The gas usage amount is the value obtained by subtracting the previous guideline information from the current guideline information. Therefore, the gas usage information Gn-3, Gn-2, Gn-1, and Gn calculated at the calculation times Tn-3, Tn-2, Tn-1, and Tn is calculated using the following formula, respectively. [Gn-3]=[Sn-3]-[Sn-4] ···(1) [Gn-2]=[Sn-2]-[Sn-3] ···(2) [Gn-1]=[Sn-1]-[Sn-2] ···(3) [Gn] = [Sn] - [Sn-1] (4)

[0029] <Forecast guideline information Sx and predicted gas usage information Gx at the forecast calculation time Tx> In FIG. 5, if the prediction calculation time point is Tx and the prediction guideline information at this prediction calculation time point Tx is Sx, predicted gas usage amount information Gx is calculated by the following formula. [Gx] = [Sx] - [Sn] (5)

[0030] <Gas usage information G trends> FIG. 6A shows the transition of the gas usage amount information Gn with respect to the calculation time point T on the horizontal axis and the gas usage amount information G on the vertical axis. The gas usage information Gn-3, Gn-2, Gn-1, and Gn indicate the calculation results of the formulas (1) to (4). Further, the predicted gas usage amount information Gx at the prediction calculation time Tx indicates the calculation result of the formula (5).

[0031] <Gas sales information M trends> FIG. 6B shows the transition of the gas sales information Mn and the predicted gas sales information Mx with respect to the calculation time point T on the horizontal axis and the gas sales information M on the vertical axis. The gas sales information Mn is calculated by multiplying the gas usage information Gn by the gas fee mr applied to the gas supply destination 10 . The gas sales information Mn-3, Mn-2, Mn-1, and Mn are calculated using the following formula. [Mn-3] = [Gn-3] × [mr] (6) [Mn-2] = [Gn-2] × [mr] (7) [Mn-1]=[Gn-1]×[mr] (8) [Mn] = [Gn] × [mr] (9) Furthermore, assuming that the predicted gas sales information at the prediction calculation time Tx is Mx, the predicted gas sales information Mx is calculated by multiplying it by the gas fee mr in the same way as the predicted gas usage information Gx. [Mx] = [Gx] × [mr] (10)

[0032] <Meter reading time tm and guideline information Sm> Figure 7 shows the trend of the guideline information, with the horizontal axis representing the time of meter reading and the vertical axis representing the guideline information. The horizontal axis has the calculation times Tn and Tn-1 of the gas usage information G in parentheses. The indicator information S1, S2, . . . , Sm is indicator data acquired from the gas meter 50 at the meter reading times t1, t2, . . . , tm. On the other hand, the calculation time T does not need to coincide with the meter reading times t1, t2, . . . , tm. Furthermore, it is sufficient that there is guideline information necessary for calculating the amount of gas used between the calculation points in time, and the two or more pieces of meter reading information include a plurality of pieces of guideline information, for example, S1, S2, . . . , Sm.

[0033] <Calculation of predicted gas usage information Gx> 8 shows the calculation process of the predicted gas usage information Gx, which includes a process of recalculating the predicted gas usage information Gx when an abnormality occurs in the amount of gas usage. The calculation process of this predicted gas usage information Gx includes obtaining guideline information S (S201), monitoring gas usage information G (S202, S203), recalculating predicted gas usage information Gx (S204), updating predicted gas usage information Gx (S205), recalculating predicted gas sales information Mx (S206), updating predicted gas sales information Mx (S207), and presenting information (S208).

[0034] Acquisition of guideline information S (S201): The management server 4 acquires guideline information S of the gas supply destination 10. Monitoring gas usage information G (S202, S203): The management server 4 monitors the gas usage information G for each gas supply destination 10 (S202) and determines whether an abnormality has occurred in the gas usage information G (S203). An abnormality in the gas usage information G is determined, for example, by an extreme increase or decrease in usage. If there is no abnormality in the gas usage information G (NO in S203), the management server 4 continues to monitor the gas usage information G.

[0035] Recalculation of predicted gas usage information Gx (S204): If there is an abnormality in the gas usage information G (YES in S203), the process shifts to a recalculation mode for predicted gas usage information Gx, and the predicted gas usage information Gx is recalculated. Update of predicted gas usage information Gx (S205): The current predicted gas usage information Gx is updated to the recalculated result. Recalculation of predicted gas sales information Mx (S206): The predicted gas sales information Mx is recalculated using the recalculated predicted gas usage amount information Gx. Update of predicted gas sales information Mx (S207): The stored information is updated with the recalculated predicted gas sales information Mx. Presentation of information (S208): Information including the predicted gas usage information Gx and predicted gas sales information Mx, which represent the recalculation results, is presented again.

[0036] <Gas usage information G abnormality determination> FIG. 9A and FIG. 9B show the transition of gas usage, with the horizontal axis representing the time of calculation of gas usage and the vertical axis representing gas usage. The gas usage information Gd is the average gas usage Gav ratioIt shows an abnormal value (Gd > Gav) compared to others. If the difference between this gas consumption information Gd and the average gas consumption Gav is defined as ΔX, if this difference ΔX is greater than the reference value Gref (Gref < ΔX), it may be determined as abnormal. The gas consumption information Gg shows an abnormal value (Gg < Gav) compared to the average gas consumption Gav. If the difference between this gas consumption information Gg and the average gas consumption Gav is defined as -ΔX, if this difference -ΔX is less than the reference value -Gref (-Gref > -ΔX), it may be determined as abnormal. When such a significant change occurs in the gas consumption information G, it is determined as abnormal, and the predicted gas consumption information Gx is recalculated.

[0037] <Effect of the First Embodiment> According to this first embodiment, any of the following effects can be obtained. (1) The gas consumption, predicted gas consumption, gas sales, and predicted gas sales of the gas supplier 10 can be automatically calculated and presented. (2) Gas management information can be provided to the gas supplier 10 and utilized for management of gas consumption, etc. at the gas supplier 10. (3) It can be used by gas companies for investment prediction.

[0038] [Second Embodiment] FIG. 10 is a diagram showing a gas management system 2 according to the second embodiment. In FIG. 10, the same parts as in FIG. 2 are denoted by the same reference numerals. A plurality of gas containers 48-1 and 48-2 provided by the gas company are installed at each gas supplier 10. The gas containers 48-1 and 48-2 are connected to the gas equipment 52 via a gas meter 50, and a switch 54 is installed between the gas containers 48-1 and 48-2 and the gas meter 50, and LPG is supplied from either of the gas containers 48-1 and 48-2 to the gas equipment 52. The gas equipment 52 is equipment that consumes gas, such as a gas water heater and a gas stove.

[0039] The gas meter 50 is, for example, a microcomputer meter, and measures the amount of LPG passing through. This passing amount is guideline information S. The communication unit 56 is connected to the gas meter 50, and transmits the guideline information S provided from the gas meter 50 to a relay unit 58. The relay unit 58 is connected to a network 60 such as the Internet by wired or wireless connection. The guideline information S is provided to the guideline information source 20 through the relay unit 58. The management server 4 can acquire the guideline information S from the gas supply destination 10 through the relay unit 58. The guideline information S can also be provided from the guideline information source 20.

[0040] The management server 4 is configured as a computer equipped with a communication function, and is equipped with a processor 62, a storage unit 64, an input / output unit (I / O) 66, a timer 68, and a communication unit 70. The processor 62 performs the above-described information processing using a gas management program and the like, using an OS (Operating System) stored in the storage unit 64. In addition to the OS, the storage unit 64 also stores a gas management program and a database including the gas management file 22. The storage unit 64 is provided with memory elements such as a ROM (Read-Only Memory) and a RAM (Random-Access Memory) as storage means for various types of information. The timer 68 has a calendar function and a timekeeping function controlled by the processor 62, and provides time information to the processor 62. The communication unit 70 is controlled by the processor 62 and is capable of communicating with the communication unit 56, relay unit 58, gas supply destination terminal 12, and manager terminal 14 of the gas supply destination 10 via wired or wireless connection.

[0041] <Gas supply destination terminal 12> 11 shows the hardware of gas supply destination terminal 12. As described above, a smartphone or tablet terminal as a computer with a communication function can be used as gas supply destination terminal 12. Gas supply destination terminal 12 includes, for example, a processor 72, a memory unit 74, an I / O 76, a communication unit 78, an information presentation unit 80, and an operation input unit 82. The processor 72 is an example of a processing unit that processes gas management information, and processes information such as the gas management program based on the OS in the memory unit 74, and therefore exchanges information with the management server 4 and the administrator terminal 14. The memory unit 74 stores various programs such as the gas management program in addition to the OS. Memory elements such as ROM and RAM are used for this memory unit 74. The I / O 76 is used to send and receive information between the processor 72 and the communication unit 78, the information presentation unit 80, or the operation input unit 82. The communication unit 78 may be used, for example, for communication with the management server 4 or the administrator terminal 14 using a public line, as well as for communication with the communication unit 56 on the gas meter 50 side. The information presentation unit 80 is used to present information such as the gas management file 22 provided by the management server 4. The operation input unit 82 is used to input identification information of the gas supply destination 10, input request information for requesting gas sales information M, and the like.

[0042] <Information presentation by administrator terminal 14> 12 shows information presentation by the administrator terminal 14. The administrator terminal 14 constitutes the information presentation unit 6 for the management server 4. An information presentation screen 84 of this information presentation unit 6 is set with, for example, a guideline information presentation unit 86, a gas usage information presentation unit 88, and a gas management information presentation unit 90. The guideline information presenting unit 86 presents the predicted guideline information Sx at the prediction calculation time Tx together with the transition of the guideline information S. The gas usage information presentation unit 88 presents the predicted gas usage information Gx at the predicted calculation time Tx along with the transition of the gas usage information G for each calculation time (day). The gas management information presentation unit 90 presents the above-described gas management file 22 for each gas supply destination 10 .

[0043] <Information Presentation by Gas Supply Destination Terminal 12> 13 shows information presented by gas supply destination terminal 12 of gas supply destination 10. Information presentation screen 92 of information presentation unit 80 of gas supply destination terminal 12 is set with a guideline information presentation unit 94, a gas usage amount information presentation unit 96, and a gas consumption information presentation unit 98 for presenting gas consumption information for each gas supply destination 10. The guideline information presentation unit 94 presents the transition of the guideline information S of the corresponding gas supply destination 10, as well as the predicted guideline information Sx at the prediction calculation time Tx. The gas usage information presentation unit 96 presents the predicted gas usage information Gx at the predicted calculation time Tx along with the transition of the gas usage information G for each calculation time (day) of the corresponding gas supply destination 10. The gas consumption information presentation unit 98 presents, for each gas supply destination 10, the gas consumption calculation time, the gas consumption, the gas fee, the estimated gas consumption calculation time, the estimated gas consumption, and the estimated gas fee, for example.

[0044] <Gas management processing> FIG. 14 shows a processing sequence of gas management using the gas management system 2. The guideline information S of the gas supply destination 10 is transmitted from the communication unit 56 (S301) and provided to the management server 4. The guideline information source 20 can manage the guideline information S of the gas supply destination 10, and this guideline information S is also transmitted from the guideline information source 20 (S302) and provided to the management server 4. When the management server 4 receives the guideline information S, it identifies the gas supply destination 10 (S303), identifies the gas management file 22 (S304), acquires the guideline information S (S305), and stores it in the gas management file 22 (S306). The management server 4 manages the calculation time of the gas usage information G, and determines whether it is the calculation time of the gas usage information G (S307). If it is the calculation time of the gas usage information G (YES in S307), the management server 4 calculates the gas usage information G using the acquired guideline information S (S308), and calculates the gas sales information M (S309).

[0045] The management server 4 manages the calculation time Tx of the predicted gas usage information Gx, and determines whether it is the calculation time Tx of the predicted gas usage information Gx (S310). If it is the calculation time Tx of the predicted gas usage information Gx (YES in S310), the management server 4 calculates the predicted gas usage information Gx using the acquired guideline information S (S311), and calculates the predicted gas sales information Mx (S312). The gas usage amount information G, gas sales information M, predicted gas usage amount information Gx, and predicted gas sales information Mx are stored in the gas management file 22 (S313), and presentation information for these is generated (S314). The management server 4 determines whether it is time to send the presentation information (S315), and if it is time to send the presentation information (YES in S315), sends this presentation information to the gas supply destination terminal 12 (S316). The gas supply destination terminal 12 acquires the presentation information from the management server 4 (S317) and presents it on the information presentation screen 92 of the information presentation unit 80.

[0046] <Response process to request information from gas supply destination terminal 12> FIG. 15 shows the procedure for processing a response to request information from the gas supply destination terminal 12. The gas supply destination 10 can acquire gas consumption information using the gas supply destination terminal 12. The gas supply destination terminal 12 transmits request information to the management server 4 at any time to receive gas consumption information (S401). Upon receiving the request, the management server 4 calculates gas usage information G for the gas supply destination 10 that requested the provision of gas consumption information (S402), and calculates gas sales information M (S403). The management server 4 transmits the gas consumption information, which is the same information as the gas sales information M, to the gas supply destination terminal 12 that issued the request for gas consumption information (S404). The gas supply destination terminal 12 acquires the gas consumption information (S405) and can display this gas consumption information on the information presentation screen 92 of the information presentation unit 80. This allows the gas user at the gas supply destination 10 to recognize the provided gas consumption information.

[0047] In addition, the gas supply destination 10 can acquire the predicted gas consumption information using the gas supply destination terminal 12. The gas supply destination terminal 12 transmits request information to the management server 4 at any time to receive the predicted gas consumption information (S406). In response to this request, the management server 4 calculates predicted gas consumption information Gx for the gas supply destination 10 that requested the provision of the predicted gas consumption information (S407), and calculates predicted gas sales information Mx (S408). The management server 4 transmits the predicted gas consumption information, which is the same information as the predicted gas sales information Mx, to the gas supply destination terminal 12 that issued the request for the predicted gas consumption information (S409). The gas supply destination terminal 12 acquires the predicted gas consumption information (S410) and can display this predicted gas consumption information on the information presentation screen 92 of the information presentation unit 80. This allows the gas supply destination 10 to recognize the predicted gas consumption information.

[0048] The management server 4 stores this information in the gas management file 22 (S411) and generates presentation information (S412). The management server 4 determines whether it is time to send the presentation information (S413), and if it is time to send the presentation information (YES in S413), sends the presentation information to the gas supply destination terminal 12 (S414). The gas supply destination terminal 12 acquires the presentation information based on the timing management by the management server 4, separately from the information request (S415). This allows the gas supply destination 10 to recognize the presented gas usage amount information G, gas consumption information, predicted gas usage amount information Gx, and predicted gas consumption information.

[0049] <Advantages of the second embodiment> According to the second embodiment, one of the following effects can be obtained. (1) The same effects as those of the first embodiment can be obtained. (2) Regardless of the acquisition form of the guideline information S, the gas usage amount and sales information of the gas supply destination 10 can be collectively managed. (3) A highly reliable gas management system2 can be constructed.

[0050] Third Embodiment 16 shows a procedure for gas management according to the third embodiment, which uses the gas management system 2 according to the second embodiment. In the processing procedure according to this embodiment, the management server 4 acquires guideline information S (S501) and stores the guideline information S in the gas management file 22 (S502). The management server 4 acquires gas supply destination information (S503) and stores the gas supply destination information in the gas management file 22 (S504).

[0051] The management server 4 acquires gas supply destination information for each item (S505) and determines whether regular meter reading has been completed (S506). For gas supply destinations 10 for which regular meter reading has been completed (YES in S506), gas usage information G and gas sales information M are calculated using the guideline information S recorded in the regular meter reading (S507), and the gas sales information M is added to the predicted accumulated gas sales information Mxm (S508). If the regular meter reading has not been completed (NO in S506), the management server 4 determines whether meter reading other than the regular meter reading (= irregular meter reading) has been completed (S509). For gas supply destinations 10 for which meter reading other than the regular meter reading has been completed (YES in S509), the difference between the predicted guideline information Sx and the guideline information S at the time of the previous regular meter reading is calculated (S510). The management server 4 records the gas sales information M at that time based on the gas price list contracted with this gas supply destination 10 (S511), and adds this gas sales information M to the predicted accumulated gas sales information Mxm (S508). If meter readings other than regular meter readings have not been completed (NO in S509), the gas sales information M recorded at the previous regular meter reading is recorded (S512), and this gas sales information M is added to the predicted accumulated gas sales information Mxm (S508).

[0052] After the process of S508, the management server 4 determines whether the calculation of all gas supply destinations 10 has been completed (S513), and if the calculation has not been completed (NO in S513), returns to S504 and continues the processes from S504 to S513. If the management server 4 determines that calculations for all gas supply destinations 10 have been completed (YES in S513), it generates a list of predicted gas sales information for each gas supply destination (S514) or launches a business status portal screen (S515) and returns to S501.

[0053] <100 forecast gas sales information by gas supply destination> 17 shows the presentation of predicted gas sales information 100 by gas supply destination. This predicted gas sales information 100 is presented on the information presentation unit 6 of the management server 4, that is, on the information presentation screen 102 of the information presentation unit 6 (monitor 16) of the administrator terminal 14. This predicted gas sales information 100 has a gas supply destination information section 104, a gas usage information section 106, a gas sales information section 108, and an accumulation information section 110. The gas supply destination information section 104 stores identification information for specifying the gas supply destination 10. The gas usage information section 106 stores gas usage information G, and the gas sales information section 108 stores gas sales information M, which is the gas usage fee corresponding to this gas usage information G. The accumulation information section 110 stores accumulation information obtained by accumulating the gas usage information G and the gas sales information M.

[0054] <Advantages of the third embodiment> According to the third embodiment, one of the following effects can be obtained. (1) The same effects as those of the above embodiment can be obtained. (2) Gas management information can be used by gas companies to help them manage their gas business.

[0055] [Fourth embodiment] 18 shows a gas management process according to the fourth embodiment. This gas management process can be performed using the gas management system 2 (FIGS. 2 and 10) described above. In this gas management process, predicted gas sales information Mx is calculated based on the accumulated gas sales information M. The management server 4 identifies the gas supply destination 10 (S601) and stores (S602) the gas sales information M. The gas sales information M may be stored using the gas management file 22 (FIG. 3) described above. The management server 4 uses a timer function to monitor the calculation time T of the gas sales information M and determines whether it is the calculation time of the gas sales information M (S603). If it is the calculation time of the gas sales information M (YES in S603), it calculates the gas sales information M at that time (S604) and stores it in the gas management file 22. The management server 4 then uses a timer function to monitor the calculation time Tx of the predicted gas sales information Mx and determines whether it is the calculation time Tx of the predicted gas sales information Mx (S605). If it is the calculation time Tx of the predicted gas sales information Mx (YES in S605), it calculates the predicted gas sales information Mx at that time (S606), stores it in the gas management file 22, and presents the information (S607). This information presentation can be done, for example, by updating the gas management file 22 and presenting it to the information presentation unit 6 of the administrator terminal 14.

[0056] <Advantages of the Fourth Embodiment> According to the fourth embodiment, one of the following effects can be obtained. (1) The same effects as those of the above embodiment can be obtained. (2) Gas consumption can be predicted by accumulating sales information, which simplifies management.

[0057] As explained above, the most preferred embodiment of the present invention has been described. However, the present invention is not limited to the above description. Various modifications and changes are possible for those skilled in the art based on the gist of the invention as set forth in the claims or disclosed in the detailed description. It goes without saying that such modifications and changes are included within the scope of the present invention. [Industrial Applicability]

[0058] According to the present invention, gas supply to gas supply destinations and sales management thereof can be automated, prediction accuracy can be improved, and this can be useful for gas business management. [Explanation of symbols]

[0059] 2 Gas management system 4 Management Server 6 Information presentation section 8 Information input section 10, 10-1, 10-2, , 10-N Gas supply destination 12, 12-1, 12-2, , 12-N Gas supply terminal 14 Administrator terminal 16 monitors 18 Operation input section 20 Guidance sources 22, 22-1, 22-2, 22-N Gas Management File 24 Gas Supply Information Department 26 Gas Supply Information Department 26-1 Container capacity section 26-2 Number of containers 26-3 Container replacement period section 26-4 Average Gas Consumption 28 Acquisition conditions information department 30 Meter Reading Information Section 32 Guidelines Information Department 34 Calculation Time Information Department 36 Gas Usage Information Section 38 Gas Sales Information Department 40 Estimated gas consumption information section 42 Forecast Gas Sales Information Department 44 Estimation Information Department 46 History Information Department 46-1 Anomaly Information Department 46-2 Recalculation information section 46-3 Presentation information transmission record unit 48, 48-1, 48-2 Gas bottles 50 Gas Meter 52 Gas appliances 54 Switch 56 Communications Department 58 Relay Section 60 Network 62 processors 64 Memory section 66 Input / output section (I / O) 68 Timer 70 Communications Department 72 processors 74 Memory section 76 Input / output section (I / O) 78 Communications Department 80 Information presentation section 82 Operation input section 84 Information presentation screen 86 Guideline information presentation section 88 Gas usage information display unit 90 Gas management information presentation section 92 Information presentation screen 94 Guideline information presentation section 96 Gas usage information display unit 98 Gas consumption information display unit 100 Forecasted Gas Sales Information 102 Information presentation screen 104 Gas Supply Information Department 106 Gas Usage Information Section 108 Gas Sales Information Department 110 Estimation Information Department

Claims

1. a step in which the management server acquires guideline information through regular meter readings that are performed at regular intervals or irregular meter readings that are meter readings other than the regular meter readings, and stores the guideline information in a gas management file in association with gas supply destination information; When the management server acquires the guideline information from the gas supply destination through the regular meter reading or the irregular meter reading, it extracts gas supply destination information from the gas management file and determines for each gas supply destination whether the regular meter reading or the irregular meter reading has been completed, or whether neither the regular meter reading nor the irregular meter reading has been completed; a step in which the management server calculates gas usage information and gas sales information for gas supply destinations for which the periodic meter reading has been completed among the gas supply destinations extracted from the gas management file, based on guideline information at the time of the periodic meter reading stored in the gas management file; a step in which the management server calculates a guideline difference between predicted guideline information and guideline information at the time of the previous regular meter reading for a gas supply destination for which the non-regular meter reading has been completed after the previous regular meter reading, and records gas usage information and gas sales information using this guideline difference and a tariff; a step in which the management server records gas usage information and gas sales information at the time of the previous regular meter reading for gas supply destinations for which neither the regular meter reading nor the irregular meter reading has been completed; generating aggregate information including the gas usage information and the gas sales information by the management server; a step in which the management server generates presentation information including a list of forecast information for each gas supply destination and / or the aggregate information based on the calculation of all gas supply destinations; an administrator terminal receiving the presentation information from the management server and presenting it on a screen; A method for predicting gas sales, including:

2. a guideline information acquisition unit that acquires guideline information of a gas supply destination; a management server that cooperates with the guideline information acquisition unit and acquires the guideline information from the guideline information acquisition unit; an administrator terminal connected to the management server; Including, The management server acquires guideline information through regular meter readings performed at regular intervals or irregular meter readings other than the regular meter readings, and stores the guideline information in a gas management file in association with gas supply destination information; When the management server acquires the guideline information from the gas supply destination through the regular meter reading or the irregular meter reading, it extracts gas supply destination information from the gas management file and determines for each gas supply destination whether the regular meter reading or the irregular meter reading has been completed, or whether neither the regular meter reading nor the irregular meter reading has been completed; The management server calculates gas usage information and gas sales information for gas supply destinations for which the periodic meter reading has been completed among the gas supply destinations extracted from the gas management file, based on guideline information at the time of the periodic meter reading stored in the gas management file; The management server calculates the difference between the predicted guideline information and the guideline information at the time of the previous regular meter reading for the gas supply destination for which the irregular meter reading has been completed after the previous regular meter reading, and records the gas usage information and gas sales information using the difference and the price list. The management server records gas usage information and gas sales information at the time of the previous regular meter reading for gas supply destinations for which neither the regular meter reading nor the irregular meter reading has been completed, the management server generates aggregate information including the gas usage information and the gas sales information; the management server generates presentation information including a list of forecast information for each gas supply destination and / or the aggregate information based on the calculation of all gas supply destinations; The gas sales forecasting system, wherein the administrator terminal receives the presentation information from the management server and presents it on a screen.

3. A program for realizing the program by a computer, A function of acquiring guideline information through regular meter readings that are conducted at regular intervals or irregular meter readings that are meter readings other than the regular meter readings, and storing the guideline information in a gas management file in association with gas supply destination information; a function of extracting gas supply destination information from the gas management file when the guideline information is obtained from the gas supply destination by the periodic meter reading or the irregular meter reading, and determining whether the periodic meter reading or the irregular meter reading has been completed for each gas supply destination, or whether neither the periodic meter reading nor the irregular meter reading has been completed; a function of calculating gas usage information and gas sales information for gas supply destinations for which the periodic meter reading has been completed among the gas supply destinations extracted from the gas management file, based on guideline information at the time of the periodic meter reading stored in the gas management file; a function of calculating the difference between the predicted guideline information and the guideline information at the time of the previous regular meter reading for a gas supply destination for which the irregular meter reading has been completed after the previous regular meter reading, and recording the gas usage information and gas sales information using the difference and the price list; a function of recording gas usage information and gas sales information at the time of the previous regular meter reading for a gas supply destination for which neither the regular meter reading nor the irregular meter reading has been completed; a function of generating aggregate information including the acquired gas usage amount information and gas sales information; a function of generating a list of forecast information for each gas supply destination and / or presentation information including the aggregate information based on the calculation of all gas supply destinations; a function of providing the presentation information to an administrator terminal and displaying it on a screen of the administrator terminal; A program for causing the computer to realize the above.

4. an input unit that acquires indicator information by periodic meter readings that are performed at regular time intervals during a specific meter reading period or irregular meter readings that are meter readings other than the periodic meter readings; The guideline information is stored in a gas management file in association with gas supply destination information, and when the guideline information is obtained from a gas supply destination by the regular meter reading or the irregular meter reading, the gas supply destination information is extracted from the gas management file, and it is determined whether the regular meter reading or the irregular meter reading has been completed for each gas supply destination. For gas supply destinations for which the regular meter reading has been completed among the gas supply destinations extracted from the gas management file, gas usage information and gas sales information are calculated based on the guideline information at the time of the regular meter reading stored in the gas management file, and a processing unit that calculates a guideline difference between predicted guideline information and guideline information at the time of the previous regular meter reading for gas supply destinations for which irregular meter reading has been completed, calculates the guideline difference between predicted guideline information and guideline information at the time of the previous regular meter reading, and uses this guideline difference and a tariff to record gas usage information and gas sales information; that calculates the gas usage information and gas sales information at the time of the previous regular meter reading for gas supply destinations for which neither regular meter reading nor irregular meter reading has been completed, and generates aggregate information including the gas usage information and the gas sales information; and that generates a list of predicted information for each gas supply destination and / or presentation information including the aggregate information based on the calculation for all gas supply destinations; an output unit that outputs the presentation information; Including the server.

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