JP5248746B2 - Gas usage communication system - Google Patents

Description

The present invention relates to a gas consumption communication system, in particular, it relates to a gas consumption communication system that can obtain the gas consumption with high accuracy.

  Traditionally, efficient use of gas has been demanded, and by grasping the customer's gas demand in detail, "various plans on the production side", "various plans on the demand side", "energy saving", "detailed" "Fee service" can be realized. Therefore, recent gas meters are provided with “demand” functions such as a load survey function (load measurement function) and a maximum usage amount measurement function per unit time.

  Here, the load survey function is data of gas usage at regular intervals (hereinafter referred to as load survey data) in addition to the original metering function of measuring the gas usage, which is an integrated value of the gas flow rate. Is sequentially stored using a storage means such as a semiconductor memory. In order to make more effective use of load survey data, environmental conditions such as temperature and pressure at the time of load survey data acquisition are also grasped at the same time (hereinafter referred to as “load survey data”). "Survey data" in order to distinguish it.) Then, by acquiring the load survey data and the survey data, it is possible to grasp the gas flow rate and the state of the gas pipeline corresponding to changes in gas expansion and compression due to temperature.

  The survey data is measured at arbitrary intervals in the same manner as the load survey data. After the data is stored on the gas meter side for a certain period of time, the integrated flow rate connected to the gas meter via a communication line such as a telephone line is managed. It is common for an integrated flow rate management device as a device to suck up data at regular intervals or to be transmitted from a gas meter to the integrated flow rate management device, and a technique for that is disclosed (for example, see Patent Document 1). .)

Here, when managing the time for measuring load surveys and surveys (hereinafter simply referred to as surveys) on the gas meter side using RTC (Real Time Clock) etc., the gas meter and the integrated flow rate There will be a time lag with the management device. When the time lag occurs, an error occurs in the stored contents of the data such as the survey. Therefore, it is necessary to perform time adjustment between the gas meter and the integrated flow rate management device. Therefore, a technology has been developed that corrects the time so that a large error does not occur between the contents of the load survey data and survey data stored in the storage means and the measured value of gas usage at the actual time. (For example, refer to Patent Document 2).
Japanese Patent Laid-Open No. 9-180084 JP 2004-53428 A

  By the way, as described above, when the time of the gas meter is corrected, it is conceivable that the time is corrected based on a time correction instruction obtained from an integrated flow rate management device or an external device. In this case, the time itself can be corrected, but it cannot be corrected with high accuracy up to the gas usage amount for a predetermined time based on the corrected time. Therefore, there has been a problem that it is impossible to accurately grasp the amount of gas used for the corrected time.

  Here, an example of the above-described problem will be specifically described. For example, when measuring “load survey” or “maximum usage per unit time”, for example, 1 o'clock, 2 o'clock on the basis of the time on the system. The hourly, 3 o'clock and “every hour” usage is measured at 60 minute intervals. Here, when the time is returned for 20 minutes during the measurement, the measurement amount “every hour” at the time change is actually the measurement amount of “1 hour + 20 minutes”.

  Here, if the upper limit of gas usage per unit time is set in the contract for gas charges, for example, as described above, the amount of measurement for 20 minutes may increase due to time correction, so contract usage There is a case where the upper limit of the amount is exceeded and a “additional fee” is generated. In such a case, a disadvantage occurs on the consumer side.

The present invention was made in view of the above problems, and an object thereof is to provide a gas consumption communication system that can obtain the gas consumption with high accuracy.

  In order to solve the above problems, the present invention employs means for solving the problems having the following characteristics.

According to the first aspect of the present invention, a time management unit that manages time and a measurement from a previous predetermined time to a predetermined time each time the time managed by the time management unit becomes a predetermined time are measured. A gas meter having a storage means for storing the gas usage amount, and an integration for obtaining the gas usage amount for each predetermined time stored in the storage means, connected to the gas meter via a communication line, using the communication line In a gas usage communication system comprising a flow management device, the gas meter sets the time of the time management means to the predetermined time when an instruction for time correction is given from the integrated flow management device. After storing the gas use amount from the time when the gas use amount is stored in the storage means to the current time, the storage means stores the time of the time management means. Characterized in that it has a control means for modifying the instructions of a time correction from the device.

According to the first aspect of the present invention, the gas usage before and after the time correction can be stored in different storage areas using an existing algorithm. Thereby, the system change which concerns on invention can be suppressed to the minimum. Moreover, the gas usage amount for a predetermined time can be acquired with high accuracy.

According to the second aspect of the present invention, when the gas meter is instructed to be corrected by the integrated flow rate management device, the gas usage measured from the predetermined time when the gas usage is stored in the storage means to the present time There is provided a storage control means for storing data indicating correction in association with the amount in the storage means.

According to the second aspect of the present invention, it is possible to accurately grasp the amount of gas used that has been affected by the time correction. Thereby, the amount of gas used can be acquired with high accuracy.

  According to the present invention, the amount of gas used can be acquired with high accuracy.

DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of a gas usage communication system and a gas meter according to the present invention will be described in detail with reference to the drawings. In the following embodiments, when there is a difference between the internal time of the gas meter and the time of the integrated flow rate management device that manages the integrated flow rate of gas, a time correction instruction is sent to the gas meter side. The internal time of the gas meter and the time of the integrated flow rate management device are unified. This correction instruction is transmitted from an external device connected to the gas meter via a communication line or the like, but in the following embodiments, the correction instruction is transmitted from an integrated flow rate management device as an external device. The external device is not limited to this, and an external device that manages time in the gas usage communication system may be provided separately from the integrated flow rate management device. In the following embodiments, time management means for managing the time in the gas meter itself, and storage means for storing the gas usage up to the predetermined time each time the time managed by the time management means becomes the predetermined time; However, instead of providing the time management means and the storage means in the gas meter itself, for example, a device connected to the gas meter to which the gas flow rate measured by the gas meter is input (For example, it may be provided in a peripheral device such as a gas meter demand device, a load measuring device, a temperature pressure corrector, etc.) (in this case, a device having time management means and storage means) , Including gas meter, defined as gas meter).
<Embodiment>
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 7.

  FIG. 1 is a diagram showing a configuration of a gas usage communication system and a hardware configuration showing an embodiment of a gas meter according to the present invention. A gas usage communication system 10 shown in FIG. 1 is connected to the gas meter 11 as the demand device described above, and the gas meter 11 and a communication line 12 typified by a telephone line. And an integrated flow rate management device 13 serving as a terminal device that acquires the information using the communication line 12.

  The gas meter 11 includes a CPU (Central Processing Unit) 21, a time management unit 22, a flow rate sensor 23, a temperature sensor 24, a pressure sensor 25, a communication interface 26, a storage unit 27, and a storage control unit 28. And an input means 29 and an output means 30.

  The CPU 21 is arithmetic control means for controlling processing of the entire gas meter such as various calculations and data input / output with each hardware component in the gas meter 11. Further, the time management means 22 manages the internal time of the gas meter 11. Specifically, the time management means 22 may have a function such as an RTC, an electronic timepiece, a radio timepiece, etc., and causes the CPU 21 to perform timekeeping processing and manage the time from the timekeeping information. Is also possible. Further, the time management unit 22 corrects the time when the gas meter administrator or the like gives an instruction to correct the time by the input unit 29. The information to be corrected may be input information from the input means 29 by the administrator, or the integrated flow rate management device 13 connected to the communication line 12 using the communication interface 26 or other terminal (external device). Etc.

  The flow rate sensor 23 is a flow rate detection unit that detects the flow rate of gas, the temperature sensor 24 is a temperature detection unit that detects the temperature of the gas at the time of gas supply, and the pressure sensor 25 is at the time of gas supply. Pressure detection means for detecting the pressure of the gas.

  The communication interface 26 transmits / receives data to / from the integrated flow rate management device 13 and other terminals connected to the communication line 12 via the communication line 12 such as a telephone line or a wireless line. Specifically, processing such as transmitting survey data stored in the storage unit 27 to the integrated flow rate management device 13 or acquiring date and time information from other terminals connected by the communication line 12 is performed. The communication interface 26 may be wired or wireless, and a normal communication means such as optical communication can be applied as the wired interface.

  Further, the storage means 27 stores the gas flow rate (gas usage amount) measured by the flow rate sensor 23 for a predetermined time as survey data. The storage unit 27 stores the gas temperature measured by the temperature sensor 24 and the gas pressure information measured by the pressure sensor 25 in association with the gas flow rate. The storage means 27 also stores a correction flag indicating that the time has been corrected. The specific contents of the storage means 27 will be described later. In addition, the storage control unit 28 causes the storage unit 27 to store survey data every predetermined time.

  The input means 29 is a means for a gas meter administrator to input information, for example. Here, as the input unit 29, for example, a button group such as a keyboard, a touch panel formed integrally with the output unit 30, a voice input, or the like is applicable. Further, the output means 30 displays the contents input by the gas meter manager or the like through the input means 29, the operating status of the gas meter, the contents of data stored in the storage means 27, and the like. Here, as the output means 30, there are a monitor, a touch panel formed integrally with the input means 29, and the like, and an audio output function may be provided.

  The integrated flow rate management device 13 can be applied to devices having CPU control, such as a personal computer, a mobile phone, a PDA (Personal Digital Assistant) terminal, a commercially available game machine terminal, various remote controllers, and a dedicated terminal.

  In FIG. 1, the gas meter 11 and the integrated flow rate management device 13 have a one-to-one relationship. However, the system configuration is not limited to this, and the integrated flow rate management device 13 manages a plurality of gas meters. Can do. In this case, for example, communication with a plurality of gas meters 11 is controlled using a communication procedure such as a polling / selecting method. The communication line 12 may be wired or wireless.

<Example of Data Storage in Storage 27>
Here, a data storage example of the storage unit 27 based on the hardware configuration of FIG. 1 will be described with reference to the drawings. FIG. 2 is a diagram showing an example of survey data stored in the storage means.

  As shown in FIG. 2, the storage means 27 includes a header information storage area 41 for storing header information including the start month and date, and survey data storage areas 42-1 to 42-n for storing survey data every predetermined time. Have Here, for example, when survey data is stored every hour (predetermined time), survey data measured at 0 to 1 o'clock is stored in “survey data No. 1”. 2 "stores survey data measured at 1 to 2 o'clock.

  In addition, in the storage process in the present invention described later, there is a time correction between 1 and 2 o'clock, and when survey data is stored in “survey data No. 2” and “survey data No. 3” by the method described later, The survey data measured at 2 to 3 o'clock is stored in “survey data No. 4”.

  The header information storage area 41 stores date and time information in order to realize data storage at predetermined time intervals on a plurality of different days. Therefore, the storage unit 27 can store a predetermined set of survey data such as several days or months.

  Note that the survey data shown in FIG. 2 can store, for example, at least one of a temperature and a pressure value together with the amount of gas used, and the time unit to be stored can be arbitrarily changed.

  As for the data arrangement in the storage unit 27, for example, a plurality of storage units are prepared for one type of data, and “change storage destination for each data registration” or “the same for a plurality of storage units”. Various data arrangements such as “registering data to achieve duplication” can be performed. Further, the data storage content is not limited to storing all the integrated effective values of the usage amount. For example, a method of storing only an appropriate number of digits as load survey data may be used.

These data are updated and written in order from the oldest information among the gas usage amounts stored in the storage area, for example.
<Operation details>
Next, the specific operation | movement content of the gas usage-amount communication system in this invention is demonstrated. Here, the start / end conditions of energy usage measurement in a certain time, such as “load survey” and “maximum usage per unit time” will be described first.

  For example, when the unit time (predetermined time) is “1 hour”, the measurement start / end is usually started when the minute unit such as “1:00” or “2:00” is “00 minutes”. To implement. Here, the measurement start / end timing corresponding to “00 minutes” described above is referred to as “on the hour”.

  For example, when measurement is started at a predetermined time “10:00”, the measurement is ended at the next predetermined time “11:00” and the measurement for the next one hour (predetermined time) is simultaneously started. The unit time (predetermined time) for performing the predetermined measurement is not limited to this. For example, “10 minutes”, “15 minutes”, “30 minutes”, “1 hour”, “2 hours”, “1 day”, etc. Measurement under all conditions is possible. The start / end start point can also be set in units of seconds, such as “00 minutes 15 seconds”.

  Here, in the following description, for convenience, the start / end in the case of “predetermined time = 1 hour” is assumed to be “xx: 00” as an example. Moreover, the setting of the date and time to the gas meter is acquired by the integrated flow rate management device 13 or the like via the communication interface 26 by the CPU 21 or the like.

<Operation Example 1>
First, an operation example of a gas meter that stores survey data at time correction will be described with reference to the drawings in comparison with a conventional example. FIG. 3 is a diagram illustrating an example of a conventional storage process at time correction. FIG. 4 is a diagram illustrating an example of a storage process at time correction in the first embodiment. 3 and 4 show an example in which the time is corrected to “8:15” when the time is “8:45” as an example.

  First, in the conventional example shown in FIG. 3, when the time is corrected from “8:45” to “8:15”, when “9:00” is reached, a predetermined storage area (in FIG. 3) , “Survey data No. i”), the gas usage amount (survey data) a for 45 minutes from “8:00 to 8:45” before time correction, and “8:15 to 9:00 after time correction” The total value of the gas usage b for 45 minutes is stored as a one-hour unit amount.

  Therefore, for example, when the consumer continues to use a certain amount of energy, the gas usage amount measured for 90 minutes is stored for the actual hourly amount. For this reason, in reality, it is determined that the upper limit has been exceeded, even though the upper limit of the usage amount set in the contract has not been exceeded, so there is a disadvantage for energy consumers. .

  Therefore, in the present invention, when it becomes necessary to correct the time, the time is corrected after storing the survey data measured up to that point. As a result, the survey data stored in the storage means 27 is always stored survey data measured in units of time less than or equal to a predetermined time (one hour or less in the embodiment) set for each survey data storage area. Will be.

  When the survey data is stored when the time is corrected, a control process for forcibly storing the survey data up to that time in the storage unit 27 by inputting a predetermined command by the gas meter manager or the like through the input unit 29 is performed. Although the function to be realized may be provided in the CPU 21, the storage control means 28, etc., it is preferable to use the existing storage control means 28 as they are.

  Therefore, in the present invention, as shown in FIGS. 4 (A) and 4 (B), the time management means 22 once corrects the time (xx: 00) before it is corrected at the time (8:45) to be actually corrected. The time is corrected (correction 1 in FIG. 4). As a result, since the memory control means 28 has reached the hour, the stored data (gas consumption amount a) is stored in the predetermined survey data No. Store in i. Further, after storing, the time management means 22 corrects the time to 8:15 to be corrected (correction 2).

  That is, in FIG. 4A, the time control means 28 sets “8:00” from “8:45” to “8:00”, stores the result of the survey data up to the present time, and then “8:15”. It has been corrected. Further, in FIG. 4B, the time control means 28 sets “9:00” which is the current hour from “8:45”, stores the result of the survey data up to the present time, and then “8:15”. Is corrected.

  Further, in the case shown in FIGS. 4A and 4B, the gas usage b exists even for a short time during which the gas usage a is stored. However, since this gas use amount b is a few seconds, it does not exceed a predetermined time (1 hour in the embodiment) even if the gas use amount c measured after the time adjustment is added. Even if there is a slight amount, there is no big problem. Therefore, when the hour comes after the time correction (9:00 in FIG. 4), the added value b + c of the gas usage b and the gas usage c is stored in “survey data No. i + 1”.

  4 may be added to the gas usage amount a and stored in “Survey data No. i”, or the gas usage amount a may be temporarily stored in another storage area. When the current hour (9:00) is reached, the gas usage amount a is compared with the gas usage amount c, and the gas usage amount b is added to the smaller usage amount. i ”or“ survey data No. i + 1 ”.

  Thus, while utilizing the existing system (function) for storing the survey data at the correct time, the survey data can be stored without significantly changing the existing system. In addition, the time adjustment does not cause an excessive amount of measurement unit time, and appropriate fee setting and other services can be realized without penalizing consumers.

  In the present invention, in the storage unit 27, data (such as a correction flag) for determining which survey data is corrected in time may be stored in association with the survey data.

  Specifically, in the storage area for storing the load survey data for each time, there is a possibility that the time of the gas meter 11 may be different from the actual usage amount, and a correction flag or the like indicating that the time is corrected It also has a storage area for storing data. In the correction flag storage area, data indicating “Yes” or “No” of correction, for example, “1” when there is correction, “0” when there is no correction, as shown in FIG. Is stored. In addition, data is stored only when there is a correction, and nothing is set and the initial value may be left as it is when there is no correction.

  Further, the gas meter 11 transmits the survey data to which the correction flag stored in the storage unit 27 is added to the integrated flow rate management device 13. As a result, the integrated flow rate management device 13 can easily grasp in which time zone the time has been corrected. Furthermore, it is also possible to perform processing such as not determining the data of the time zone that has been corrected by the correction flag as the flow rate upper limit value.

<Example 1: Flow chart>
Here, the data storage processing procedure in the first embodiment will be described with reference to a flowchart. FIG. 5 is an example flowchart illustrating an example of a data storage processing procedure according to the first embodiment. Here, FIG. 5 shows processing for a predetermined time unit from the start to the end of measurement. Note that during the processing in FIG. 5, it is assumed that the above-described survey data measurement is continuously performed.

  First, it is determined whether or not there is a time correction instruction (S01). Here, in the process of S01, when there is an instruction to correct the time (YES in S01), the time is corrected at a predetermined time (for example, on the hour) to store the data (S02) and stored in a predetermined storage area. Survey data is stored (S03). Thereafter, the correct time is corrected (S04), and the processing after S01 is continued.

  If there is no time correction instruction in S01 (NO in S01), it is next determined whether or not it is a predetermined time for storing survey data in the storage means 27 (S05). If it is the predetermined time (YES in S05), the survey data is stored in a predetermined recording area (S06). If it is not the predetermined time (NO in S05), the process returns to S01 and continues.

  As described above, according to the first embodiment, since survey data is not stored in units of measurement time of a predetermined time or more, the amount of gas used can be obtained with high accuracy without detriment to energy consumers. Can do.

<Example 2>
Next, another embodiment (embodiment 2) of the present invention will be described with reference to the drawings. FIG. 6 is a diagram illustrating an example of a storage process at the time correction in the second embodiment. FIG. 6 shows an example in which the time is corrected from “8:15” to “8:45”.

  Here, when the method described in the first embodiment is used, for example, when the time is corrected from “8:15” to “8:45”, the survey is performed between “8:00 and 8:15”. The data is once stored in a predetermined storage area, and the survey data measured between “8:45 and 9:00” after time correction is stored in another storage area.

  In this case, before and after the correction, the time zone from 8:00 to 9:00 is only 15 minutes from “8:00 to 8:15” and 15 minutes from “8:45 to 9:00”. In spite of this, since these are stored in separate survey data storage areas as one-hour measurement units, the amount of data increases accordingly.

  Therefore, in the second embodiment, when the time is corrected, the survey data is stored from the time range (first time) of data not stored in the storage means 27 measured before the correction and the corrected time. Add the time range (second time) to the time to perform (for example, the hour), and if the total time is within a predetermined time, add the survey data obtained in each time zone The survey data is output to a predetermined storage area of the storage means 27.

  Therefore, in Example 2, as shown in FIG. 6, the gas usage amount a and the gas usage amount b are summed and stored in the same storage area (survey data No. i).

  Here, another example of the second embodiment will be specifically described. For example, as in the first embodiment described above, consider an example in which survey data is stored in the survey data of the storage means 27 as a measurement amount in units of one hour at noon (xx: 00). In the above example, when the time is adjusted from “8:15” to “9:20”, first, the survey time range (first time) measured before the time adjustment is “8:00 to 8-8”. : 15 ”for 15 minutes. Further, the time range (second time) from the time correction to the stored predetermined time is 40 minutes of “9:20 to 10:00”, and the total (addition) time is 55 minutes. In this case, since the total time (55 minutes) is 1 hour or less, a value obtained by adding the surveys measured during the 55 minutes is output as predetermined survey data. Thereby, the amount of data stored in the storage means can be reduced. The time calculation described above before and after the correction is performed by the time management unit 22, the result is transmitted to the storage control unit 27, and the above-described processing is performed.

  In the case of adjusting the time from “8:45” to “9:20”, 45 minutes (first time) measured from “8:00 to 8:45” before the time correction, Since the total of 40 minutes (second time) from “9:20 to 10:00” is 85 minutes, it exceeds 1 hour, so the surveys measured at each of the first time and the second time are implemented. Similar to Example 1, they are stored in separate survey data storage areas.

  In addition, when the date spans from “23:45” to “00:40”, there is a possibility that the upper limit usage amount is set based on the accumulated amount for each day. It is preferable to store the survey data in different storage areas as shown in FIG.

  In the second embodiment as well, the position of the data whose time is corrected can be easily grasped by adding the above-described correction flag. Thereby, a service can be provided to a consumer with higher accuracy.

  As described above, according to the second embodiment, survey data can be efficiently stored while reducing the data amount. Furthermore, even if the time is corrected, since the measurement for a predetermined time or longer is not performed, it is possible to prevent the contract upper limit from being illegally exceeded and disadvantageous to the consumer.

<Example 2: Flowchart>
Here, the data storage processing procedure in the second embodiment will be described with reference to a flowchart. FIG. 7 is an example flowchart illustrating an example of a data storage processing procedure according to the second embodiment. Here, FIG. 7 shows processing for a predetermined time unit from the start to the end of measurement. Note that during the processing in FIG. 7, it is assumed that the above-described survey data measurement is continuously performed.

  First, it is determined whether or not there is a time correction instruction (S11), and when there is a time correction instruction (YES in S11), an accumulated time (first time) measured up to the present time is acquired ( S12). In addition, the time (second time) from the correction of the time to the predetermined time for storing the data is acquired (S13).

  Here, the total time of the first time of S12 and the second time of S13 is compared with a predetermined time unit (for example, 1 hour). Specifically, it is determined whether or not the total time is equal to or less than a predetermined time unit (S14). If the total time is equal to or less than the predetermined time unit (YES in S14), the survey data measured up to the present time The measurement is continued by adding to the measurement result (S15). Thereby, the total value with the survey data after the time correction can be stored in the survey data measured before the time correction. Further, after correcting the time to a predetermined time (S16), the process returns to S11 and continues.

  If the total time is larger than the predetermined time unit in S14 (NO in S14), the time is corrected to the predetermined time for storing the data (S17), and the survey data is stored in the predetermined storage area (S18). The time is corrected (S19), and the process returns to S11 to continue the process.

  Here, in the process of S11, when there is no time correction instruction (NO in S11), it is determined whether or not it is a predetermined time (S20). Here, if it is the predetermined time (YES in S20), the survey data is stored in a predetermined storage area of the survey data (S21). If it is not the predetermined time in S20 (NO in S20), the process returns to S11 and continues.

  As described above, according to the second embodiment, survey data can be efficiently stored while reducing the data amount. Furthermore, since survey data for a predetermined time or longer is not measured even when the time is corrected, it is possible to prevent the contract upper limit from being illegally exceeded and disadvantageous to the consumer.

  Here, in the first embodiment and the second embodiment described above, when processing the measurement amount of the survey data in units of one hour, the time is returned to “on the hour” immediately before or immediately after the set date. There may be a case where the storage process in the predetermined storage area does not operate normally even if the time is corrected to “hourly” because the time measurement process of 11 is at intervals of 1 minute. In that case, it can be easily handled by setting the time to a date and time such as “on the hour”.

  In the first embodiment and the second embodiment, the processing of “1 hour measurement amount” is forced by automatically returning to “time”, but the processing equivalent to “time of time” is executed. It is also possible to execute the storage process to the storage area by command input, switch input, etc., and to correct the date and time directly without changing the date and time to “hourly”.

  In addition, in Example 1 and Example 2, although the example of a measurement of 1 hour unit is shown, in this invention, it does not restrict | limit in particular, For example, 3 minutes, 5 minutes, 10 minutes, 15 minutes, 20 minutes The data may be stored every 30 minutes, every 2 hours, every 6 hours, every day, every week, every month, or the like.

  As described above, according to the present invention, even when the time of the gas meter is corrected during measurement of the gas usage amount, the gas usage amount for a predetermined time based on the correction time can be obtained with high accuracy.

  Specifically, according to the present invention, even if the internal time of a demand device such as a gas meter is changed, the contract usage amount is not excessively increased in “load survey”, “maximum usage amount measurement per unit time”, etc. By exceeding the upper limit, it is possible to prevent the “additional fee” from being generated and causing a disadvantage to the consumer.

  In addition, there is no need to add functions by changing software to demand devices that are performing “load survey” and “maximum usage measurement per unit time” that do not have a function for correcting defects when changing the date and time. However, a highly accurate gas flow rate can be measured.

  The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to such specific embodiments, and various modifications, within the scope of the gist of the present invention described in the claims, It can be changed.

It is a figure which shows the structure of the gas usage-amount communication system in this invention, and the hardware constitutions which show embodiment of a gas meter. It is a figure which shows the example of storage of the survey data in a memory | storage means. It is a figure which shows an example of the memory | storage process at the time of the conventional time correction. It is a figure which shows an example of the memory | storage process at the time of the time correction in Example 1. FIG. 3 is an example flowchart illustrating an example of a data storage processing procedure according to the first exemplary embodiment. It is a figure which shows an example of the memory | storage process at the time of the time correction in Example 2. FIG. 10 is an example flowchart illustrating an example of a data storage processing procedure according to the second embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Gas usage communication system 11 Gas meter 12 Communication line 13 Accumulated flow control device 21 CPU
22 Time management means 23 Flow rate sensor 24 Temperature sensor 25 Pressure sensor 26 Communication interface 27 Storage means 28 Storage control means 29 Input means 30 Output means 41 Header information storage area 42 Survey data storage area

Claims (2)

Time management means for managing the time, and storage means for storing the gas usage measured during a predetermined time from the previous predetermined time to the predetermined time every time the time managed by the time management means becomes the predetermined time Gas usage communication comprising: a gas meter comprising: a gas meter connected to the gas meter via a communication line; and an integrated flow rate management device for acquiring the gas usage per predetermined time stored in the storage means using the communication line In the system,
The gas meter, when instructed to correct the time from the integrated flow rate management device, sets the time of the time management means to the predetermined time, thereby setting the current amount from the time when the gas usage is stored in the storage means. Gas storage amount characterized by having control means for correcting the time of the time management means to the time when the correction instruction is given from the integrated flow rate management device Communications system. The gas meter is
When there is an instruction for correction from the integrated flow rate management device, the data indicating the correction is associated with the gas usage measured from the predetermined time when the gas usage is stored in the storage means to the present time. The gas usage communication system according to claim 1, further comprising storage control means for storing in the storage means.

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