JP3212401B2 - Flow data storage device - 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 storage device which obtains a flow rate signal from a flow meter and stores data on a flow rate change over time.

[0002]

2. Description of the Related Art For the purpose of grasping how a fluid such as gas or water is used at an individual place of use such as a home or a business, a record is recorded on a pipe such as a gas pipe for a predetermined period. A device may be installed to record changes in flow over time. Conventionally, as a recording apparatus of this type, the number of the flow signals is totaled at regular intervals in units of a certain amount of distribution, and the totaling result is stored, or the occurrence time of the flow signal is stored individually. Are known.

Specifically, as shown in FIG. 3, a rotating plate 18 is coaxially fixed to a rotating shaft 16 of an impeller 14 provided in a pipe 9, and a magnet 20 is arranged on the surface of the rotating plate 18. The rotation of the magnet 20 by the fluid passing through the pipe 9 is sensed by the sensing unit 12 installed in the vicinity, and the signal (pulse) of the flow meter that outputs one flow signal per half rotation of the impeller 14 is processed. When the pulse time interval is constant, it is not stored individually when the pulse time interval is constant, but when the flow rate changes, and when the pulse time interval changes, the flow rate data is sent to the storage means as described above and recorded. I was

[0004]

However, conventionally,
In the case of collecting data for determining the optimal pipe diameter and determining the number of meters, the flow data obtained as described above is divided into several flow ranges, The flow rate data integrated for each section was used for comparative study. Therefore, the stored flow rate data must be sorted first, but if the measured data volume is several months, it takes 1-2 days for the process of just sorting, which is very troublesome. It was hanging.

In addition, if the number of flow signals is totalized and stored at regular intervals, the obtained flow rate will be an average value within the constant time, and accurate flow rate data cannot be obtained. Was. Furthermore, in the case of storing the generation time of the flow signal, the data to be stored increases as the number of flow signals increases, so that a large storage capacity is required for the storage means, and long-term measurement and storage cannot be performed. .

[0006]

SUMMARY OF THE INVENTION Therefore, in the present invention, a flow signal is set to a predetermined flow range for the purpose of improving accuracy and simplification of data processing and recording a measurement result over a long period of time. Means for separating,
The flow rate data storage device is constituted by including the storage means for storing the integrated flow rate signal in the classification means.

[0007]

Since the flow signals are classified one by one, the classification can be performed accurately. In addition, since the storage means stores the integrated value classified for each flow range, the data can be processed at a later date. The data can be compared immediately using the stored data, and the processing time can be shortened. Furthermore, since the integrated value is stored, even if the input flow rate signal is increased by lengthening the measurement time, the capacity required for storage does not increase so much. The flow can be extended, the flow rate can be measured over a long period of time, and the measurement result can be stored.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a flow data storage device according to the present invention will be described below. The flow data storage device 2 is connected to a flow meter 4 as shown in FIG.
And a storage means 8 for storing the data from the sorting means 7. The setting means for inputting a sorting range and the like is provided in the sorting means 7. The means 5 is connected to classify the flow rate in the pipe 9 to which the flow meter 4 is attached, and to store the information.

As shown in FIG. 3, the flow meter 4 comprises a rotating section 10 provided inside a pipe 9 such as a water pipe, and a sensing section 12 for sensing the rotation of the rotating section 10. It is connected to the means 6 and outputs a signal. The rotating unit 10 includes an impeller 14 provided in the pipe 9 and an impeller 1
When the impeller 14 is rotated by tap water flowing through the pipe 9, the rotary plate 18 also rotates at the same rotation speed. It is determined in advance how much water corresponds to one rotation of the impeller 14.
A magnet 20 is attached to the rotating plate 18, and an N pole and an S pole are formed at both ends of the rotating plate 18 with the center rotating shaft 16 interposed therebetween. The sensing unit 12 reacts to the north pole and south pole of the magnet 20 and can detect the approach thereof, and outputs the signal to the classification unit 7 as described above. Classification means 7
When the flow rate signal is input, the flow rate signal is divided according to the set division, the value is integrated for each division, and output to the storage means 8. The storage unit 8 stores the value from the classification unit 7 over the measurement period.

Next, the sorting process by the sorting means 7 will be described. First, the division range of the flow rate to be obtained is determined using the time interval of the flow signal, and the maximum value TH and the minimum value TL of the division frame are input from the setting means 5 to each division. Further, it is determined whether the value of the number of sections N and the value S to be obtained are the number of flow signals input to each section or the integration time of the flow signals belonging to each section. 0 when calculating the signal integration time
Is set to 1.

FIG. 1 shows a flowchart of the sorting process.
First, at F-1, the flow signal sent from the flow meter 4 is received, and at F-2, it is determined whether or not another signal is received immediately before this signal. If no other signal is received, F
Returning to -1, if another signal is received, at F-3,
The time interval t between the signal received this time and the signal received last time is obtained. In F-4, the section number i is set to 0, and the next F-5
Add 1 to this i. In F-6, it is determined whether or not t is larger than TL (1). If t is not larger, the process proceeds to F-8, and if it is larger, the process proceeds to F-7. In F-7, t is T
It is determined whether it is smaller than H (1).
To determine whether C is 0 or not.
Proceed to 10, add 1 to S (1), and return to F-1. Meanwhile C
Is set to 1, the process proceeds to F-11, and t (S) is set to S (1).
And returns to F-1. On the other hand, at F-7, t is TH (1).
If it is not smaller, the process proceeds to F-8, and it is determined whether or not the number N of sections is equal to i. If not, the process returns to F-5,
The process proceeds in the same manner as above by adding 1 to i and setting i to 2.
The processing when i is 2 is performed, and the processing is continued. Then, if i and N become equal in F-8, the process returns to F-1.

That is, 1 to N at F-6 and F-7
The value of i is sequentially incremented by 1 until t and TL
(I) and TH (i), and the comparison is cycled until t is applicable to both, and when it falls within the range between these maximum and minimum values, S (i ) Is added to 1 or time t. The storage means 8 accumulates and stores the integrated values S (i) sequentially accumulated by the sorting means 7 for each section.

Therefore, the flow rate data storage device 2 takes the flow rate signal sent from the flow meter 4 as a time interval, classifies the time interval according to a predetermined flow rate range, and sets the flow rate data for each section. Is accumulated and the accumulated value is stored in the storage means 8, so that the individual flow rate signals are divided by the dividing means 7, so that the flow rate can be accurately classified. In addition, since the data is stored in the storage unit 8 in a divided state, for example, in data collection such as when determining an optimal size of the meter,
Since the stored data can be used immediately, the time required for subsequent data processing can be greatly reduced. Furthermore, since the divided results are stored in the storage means 8 as integrated values, the storage amount can be reduced as compared with the case where the flow rate is stored one by one, and the measurement results can be measured over a long period of time and the measurement results can be stored. .

[0014]

According to the flow rate data storage device of the present invention,
A classification unit that classifies and integrates a flow signal from a flow meter that outputs that there is a predetermined amount of flow according to the flow rate; and a storage unit that stores an integrated value of the flow signal divided by the classification unit. With this configuration, the flow signal can be accurately classified, and since the flow signals are stored in the storage unit in the divided state, the subsequent data processing can be simplified. Since the amount of storage to be stored in the storage unit can be reduced, the saturation of the storage capacity of the storage unit can be extended, measurement can be performed over a long period, and the measurement result can be stored.

[Brief description of the drawings]

FIG. 1 is a flowchart showing a storage process of a flow rate data storage device of the present invention.

FIG. 2 is a configuration diagram showing a flow rate data storage device of the present invention.

FIG. 3 is a sectional view showing a flow meter.

[Explanation of symbols]

 2 Flow rate data storage device 4 Flow meter 5 Setting means 7 Classification means 8 Storage means 9 Tube 10 Rotating part 12 Sensing part 14 Impeller 16 Rotating shaft 18 Rotating plate 20 Magnet

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Masahiko Ito 3-6-4-102 Mansion Oaks, Kita-ku, Tokyo (72) Inventor Tomoyuki Yokosuka 5-29-1, Kasumigaseki Kita, Kawagoe-shi, Saitama (56) References JP-A-7-55532 (JP, A) JP-A-4-60420 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01F 1/00-15/18 G01D 9 / 00

Claims (1)

(57) [Claims] 1. A flow data storage device for storing flow data when a flow signal output from a flow meter fluctuates every time a unit amount of fluid passes, the flow signal is classified according to a preset classification, A flow rate data storage device comprising: a classifying means for accumulating flow data for each of the classes; and a storage means for storing the integrated value.