JP3202826B2 - Flow data analysis system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flow rate data analysis system for analyzing the flow tendency of a fluid based on the flow rate of the fluid.

[0002]

2. Description of the Related Art A flow meter equipped with a flow sensor is used to measure the flow rate, that is, the consumption of a fluid such as gas or water, and is installed in a home, office, factory, or the like (hereinafter referred to as a consumer). . The output of the flow sensor of this flow meter is used not only for billing but also for analyzing the consumption tendency of the fluid. As a flow sensor, for example, a type that outputs a pulse (hereinafter, referred to as a unit flow signal) every time a predetermined amount of flow flows in a pipeline is known. The output of each flow meter is stored in a flow data storage device attached to each flow meter, and the flow consumption tendency of each flow meter is analyzed later.

[0003] As one of the analysis of the fluid consumption tendency, there is a case where the maximum consumption amount of the fluid per hour for each customer is obtained. If this analysis result is used, when constructing a new building such as a customer of the same size as the analyzed customer, piping (for example, gas pipe) for supplying fluid to the building or the like
It is possible to determine how large a pipe should be.

[0004]

As described above, conventionally, the thickness of the fluid supply pipe for each customer could be determined, but the thickness of the pipe serving as the main pipe for supplying the fluid to a plurality of customers can be obtained. Was not sought.

[0005] When a fluid is supplied to a customer from a pipe serving as a backbone of a fluid supply pipe, the fluid is supplied under reduced pressure using a regulator. However, conventionally, since the thickness of the main pipe has not been determined, it has not been possible to accurately determine the number of steps of pressure reduction and the level of the secondary-side output capacity.

Conventionally, the flow data storage device is provided with a time measuring means, which stores the time when the unit flow signal output from the flow sensor is input to the flow data storage device. If the time of the timekeeping means of the storage device is different from the time of the timekeeping means of the other flow data storage devices, the flow data stored in each flow data storage device cannot be linked based on the time. The maximum total consumption of fluid per unit time at the consumer cannot be determined.

[0007] The present invention has been made in view of the above points, and is intended to determine the thickness of a pipe serving as a backbone for supplying fluid to a plurality of consumers, the selection of an appropriate regulator, and the quantity of a regulator. It is an object of the present invention to provide a flow rate data analysis system capable of obtaining a maximum total consumption amount of fluid per unit time in a plurality of consumers.

[0008]

In order to achieve the above object, the present invention provides a detecting means for detecting a flow rate of a fluid by a plurality of flow meters and outputting flow rate data, and a flow rate of the fluid from the detecting means. An analysis means for analyzing a predetermined unit time flow rate or an integrated flow rate corresponding to the unit time flow width for each of the plurality of flow meters for each of the predetermined time widths based on the data constitutes a flow rate data analysis system.

[0009]

According to the present invention, the analyzing means has a predetermined unit time flow rate or a predetermined unit time flow rate for each of a plurality of flow meters for a predetermined time width based on the flow rate data from the detecting means. Analyze the integrated flow rate corresponding to.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a flow rate data analysis system according to the present invention.

The flow rate data analysis system 1 includes a terminal device 2
, A flow data collection device 3, and flow meters 4a, 4b, 4c
Consisting of The flow meters 4a, 4b, 4c are connected to the flow data collecting device 3 by, for example, a dedicated line. Each of the flow meters 4a, 4b, 4c is installed in a different home, and the flow meter 4
a, 4b, and 4c, each of which is detected by a flow rate sensor (not shown), and a unit flow rate signal as a detection result is transmitted to the flow rate data collection device 3. The flow rate data collection device 3 includes a unit flow rate signal received from the flow meters 4a, 4b, and 4c, and a RAM (not shown) provided in the flow rate data collection device 3.
(Hereinafter simply referred to as a RAM), and analyzes the unit flow rate signal stored in the RAM based on an instruction from the terminal device 2 connected to the flow rate data collection device 3 by, for example, an RS-232C standard cable. I do. This analysis will be described later.

FIG. 2 shows the flow meters 4a and 4b shown in FIG.
4A is a time chart showing a generation timing of a unit flow signal which is an output of each of the flowmeters 4c, and FIG.
(B) is the output of the flow meter 4b, (c) is the output of the flow meter 4
The output of c is shown.

The unit flow rate signal is output, for example, every time 1.5 liters of gas flows. First,
As for (a), a unit flow signal is output at 6-minute intervals between 7:00 and 8:00, and a unit flow signal is output at 12-minute intervals between 8:00 and 8:24.
The unit flow rate signal is output every 18 minutes between minutes and 9 o'clock. Next, as for (b), a unit flow rate signal is output at intervals of 12 minutes between 7:00 and 7:36, and a unit flow rate signal is output at intervals of 6 minutes between 7:36 and 8:00. , Between 8:00 and 9:00, the unit flow rate signal is output at 12 minute intervals. Finally, regarding (c), the unit flow rate signal is output at 18 minute intervals between 7:00 and 7:36, and the unit flow rate signal is output between 7:36 and 9:00.
Unit flow rate signals are output at minute intervals.

The unit flow rate signals (hereinafter, also referred to as pulses) output from the flow meters 4a, 4b, 4c at the timings shown in FIGS. 2 (a), 2 (b), 2 (c) are stored in the RAM. As a method, only when there is a change in the generation time interval of the unit flow rate signal by the method described in Japanese Patent Application Laid-Open No. H4-60420 filed by the same applicant as the present application, the time when there is a change and A method of storing the number of pulses up to that time is used. This method is disclosed in
Since it is described in detail in Japanese Patent No. -60420, it will not be described here in detail. This storage is performed by storing a program previously stored in a ROM (not shown) provided in the flow rate data collecting apparatus 3 shown in FIG. CPU).

FIG. 3 shows a storage format in which the unit flow rate signal generated at the timing of the time chart shown in FIG. 2 is stored in the RAM.

According to the method described in JP-A-4-60420, a pulse output as shown in FIG. 2 (a) is shown in FIG. 3 (a) and as shown in FIG. The output pulse is shown in FIG. 3 (b), and the output pulse as shown in FIG. 2 (c) is R in the form shown in FIG. 3 (c).
Stored in AM.

The present invention is based on information (hereinafter referred to as flow rate data) stored in a RAM in the format shown in FIG.
This is a flow rate data analysis system that analyzes the flow rate. Hereinafter, this analysis will be described.

FIG. 4 shows a predetermined flow rate range (5 [l (liter) / h in FIG. 4) for each flow meter when a unit flow rate signal is generated at the timing of the time chart shown in FIG.
(Time)] is a storage format for storing information (hereinafter referred to as consumption flow rate by flow meter) indicating how many liters of gas is consumed in the RAM.

In FIG. 4, (a) shows a time range from 7:00 to
Regarding the case of 7:30, (b) shows the time range of 7:30
(C) relates to the case where the time range is from 8:00 to 8:30, and (d) relates to the case where the time range is from 8:30 to 8:30.
This is the consumption flow rate by flow meter for the case of 9 o'clock.

FIG. 5 is a general flowchart of a process for obtaining the flow rate consumption by flow meter shown in FIG. 4 based on the flow rate data shown in FIG.

In order to obtain the consumption flow rate by time range shown in FIG. 4A from the flow rate data shown in FIG. 3, first, a unit time flow rate is calculated (R-1). The unit time flow rate is, for example, the volume of gas consumed in one hour.

Referring to FIG. 3A, it can be seen that ten pulses (that is, a unit flow rate signal) are output in one hour between 7:00 and 8:00, and one pulse is a gas as described above. Since it indicates that 1.5 liters have flowed, the unit time flow rate at this time is 15 [l / h] (= 10 × 60/60).
[Pulse / h] × 1.5 [l / pulse]). Next, between 8:00 and 8:24, two pulses are output in 24 minutes.
The unit time flow rate at this time is 7.
5 (= 2 × 60/24 [pulse / h] × 1.5 [l / pulse]). Finally, between 8:24 and 9 o'clock, two pulses are output in 36 minutes, and the unit time flow rate at this time is 5 (= 2 × 60/36 [pulse / h]).
× 1.5 [l / pulse]). Step (R-1)
Is calculated in this manner.

Next, the consumed flow rate in each flow rate range is calculated for each flow meter (R-2). As described above, since the unit time flow rate of the flow meter 4a in the time range of 7:00 to 7:30 is 15 [l / h], the flow meter type is the flow meter 4a.
In the column where the flow rate range exceeds 0 and is 5 [l / h] or less,
The column where the flow rate range exceeds 5 [l / h] and 10 [l / h] or less is 0, and the flow rate range exceeds 10 [l / h] and 15
[L / h] The following column is 7.5 [l] (= 15 [l / h]
× 30/60 [h]).

Next, since the unit time flow rate of the flow meter 4b in the time range of 7:00 to 7:30 is 7.5 [l / h], the flow meter type is the flow meter 4b and the flow rate range is 0. And the column below 5 [l / h] is 0 and the flow rate range is 5 [l / h].
h] and the column of 10 [l / h] or less are 3.75 [l].
(= 7.5 [l / h] × 30/60 [h]), and the column where the flow rate range exceeds 10 [l / h] and 15 [l / h] or less is 0.

Finally, since the unit time flow rate of the flow meter 4c in the time range of 7:00 to 7:30 is 5 [l / h], the flow meter type is the flow meter 4c and the flow rate range exceeds 0. The column below 5 [l / h] is 2.5 [l] (= 5 [l / h]
× 30/60 [h]), the flow rate range is more than 5 [l / h], the column below 10 [l / h] is 0, and the flow rate range is 10 [l / h].
Columns exceeding [l / h] and not more than 15 [l / h] are zero. Subsequently, the consumption flow rate calculated in step (R-2) is stored in the RAM, and the process ends (R-3).

The flow rate data shown in FIG. 3 is obtained from the flow rate data shown in FIG.
Consumption flow rate by flow meter shown in (b) (time range is 7:30
From 3 to 8 o'clock), and the flow rate consumption by flow meter (when the time range is from 8 o'clock to 8:30 o'clock) shown in FIG. 4 (d) (when the time range is from 8:30 to 9:00) can be obtained from the flow rate data shown in FIG.

The analysis result of the flow rate consumption by flow meter shown in FIG. 4 obtained by the above-described analysis is displayed on a display device (not shown) provided in the terminal device 2 in accordance with an instruction from the terminal device 2 shown in FIG. Can be displayed in a table format or a graph format. The analysis result can be printed in a table format or a graph format by a printing device arbitrarily provided in the terminal device 2. The above-described analysis processing is realized by the CPU executing a program stored in the ROM.

By using the consumption flow rates for each flow meter shown in FIG. 4 obtained from the above-described analysis, the consumption flow rate in each flow rate range for each flow meter can be known, and therefore, when the thickness of the gas pipe is determined. Can be used as reference data.

In this embodiment, as shown in FIG.
a, 4b, and 4c, but the present invention is not limited to this. For example, 300 flowmeters are provided, and each flowmeter is installed in a different home, and each flowmeter is provided with a different flowmeter. The unit flow signal may be collected and analyzed.

In this embodiment, a RAM is used to store information such as flow rate data. However, it is a matter of course that another storage device such as a magnetic disk may be used.

Further, in this embodiment, a dedicated line is used for connection between the flow meter and the flow data collecting device. However, the present invention can of course be realized by connection via a public line or wireless communication. Further, in this embodiment, only the flow meter is installed in each home.However, a storage device for flow data is installed in each home, and the flow rate data of each home is analyzed by an analyzer provided in the storage device. The analysis result may be transmitted to the flow data collection device, and the flow data collection device may combine the analysis devices received from the individual analysis devices and perform a comprehensive analysis.

Furthermore, in FIG. 4 of the present embodiment, the time range is divided in units of 30 minutes, and the flow rate range is divided in units of 5 [l / h]. According to the present invention, for example, it is easy to use a daily unit or a monthly unit. For example, the terminal device 2 shown in FIG.
, The flow data collecting device 3 may be instructed to change these widths. In this way, analysis results having various utility values can be obtained.

[0034]

As described above, by using the consumption flow rate by flow meter shown in FIG. 4 obtained from the analysis by the flow rate data analysis system according to the present invention, the maximum total amount of fluid per unit time in a plurality of consumers can be obtained. The consumption can be determined. In selecting a regulator, the maximum flow rate that must be consumed at the same time must be determined. However, it can be easily determined by using the flow rate consumed by each flow meter shown in FIG. 4 obtained from the analysis by the flow rate data analysis system according to the present invention. it can. This makes it possible, for example, to accurately select a regulator for supplying gas to a customer and to determine the quantity thereof, and to determine the thickness of a main pipe for supplying a fluid to a plurality of customers. Can also be used.

[Brief description of the drawings]

FIG. 1 is a block diagram of a flow rate data analysis system according to the present invention.

FIG. 2 is a time chart showing a generation timing of a unit flow signal which is an output of each of the flow meters shown in FIG. 1;

FIG. 3 shows a storage format in which a unit flow rate signal generated at the timing of the time chart shown in FIG. 2 is stored in a RAM.

FIG. 4 shows a storage format in which a consumption flow rate for each flow meter when a unit flow rate signal is generated at the timing of the time chart shown in FIG. 2 is stored in a RAM.

5 is a general flowchart of a process for obtaining a flow rate consumption by flow meter shown in FIG. 4 based on the flow rate data shown in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flow data analysis system 2 Terminal device 3 Flow data collection device 4a, 4b, 4c Flow meter

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Tomoyuki Yokosuka 5-29-1, Kasumigaseki-Kita, Kawagoe-shi, Saitama (72) Inventor Masahiko Ito 4-245-1, Kawayanagicho, Koshigaya-shi, Saitama 837 (583) ) Surveyed field (Int.Cl. ⁷ , DB name) G01F 1/00-15/18

Claims (1)

(57) [Claims] 1. A detecting means for detecting a flow rate of a fluid by a plurality of flow meters and outputting flow rate data, and based on the flow rate data of the fluid from the detecting means, a plurality of the plurality of flow meters for a predetermined time width. Analyzing means for analyzing a flow rate of a predetermined unit time or a unit time flow width for each flow meter.