KR101624847B1 - Flowmeter system using image - Google Patents

Flowmeter system using image Download PDF

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Publication number
KR101624847B1
KR101624847B1 KR1020150141111A KR20150141111A KR101624847B1 KR 101624847 B1 KR101624847 B1 KR 101624847B1 KR 1020150141111 A KR1020150141111 A KR 1020150141111A KR 20150141111 A KR20150141111 A KR 20150141111A KR 101624847 B1 KR101624847 B1 KR 101624847B1
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KR
South Korea
Prior art keywords
fluid
flow rate
display unit
camera
flow meter
Prior art date
Application number
KR1020150141111A
Other languages
Korean (ko)
Inventor
조양춘
Original Assignee
주식회사 백광아이에스티
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Application filed by 주식회사 백광아이에스티 filed Critical 주식회사 백광아이에스티
Priority to KR1020150141111A priority Critical patent/KR101624847B1/en
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Publication of KR101624847B1 publication Critical patent/KR101624847B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G01F1/708—Measuring the time taken to traverse a fixed distance
    • G01F1/7086—Measuring the time taken to traverse a fixed distance using optical detecting arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats

Abstract

The present invention relates to a flow rate measuring system using an image which transmits a current state of a flow meter in an image signal to allow a manager to accurately recognize an amount of current supply of a fluid. The flow rate measuring system using an image comprises: a flow meter having a taper pipe whose inner diameter becomes smaller towards a lower end thereof, and a float whose vertical position changes in accordance with a flow rate of a fluid flowing into the flow meter along the taper pipe; a camera disposed on one side of the flow meter to photograph a current state of the flow meter in real time to generate an image signal; a display unit to continuously display the image signal photographed by the camera in real time; and a control unit to calculate the flow rate of the fluid by a height of the float in the taper pipe to display the flow rate on the display unit, and control the display unit to display the image signal photographed by the camera on the display unit.

Description

[0001] FLOWMETER SYSTEM USING IMAGE [0002]

The present invention relates to a flow measurement system, and more particularly, to a flow measurement system using an image capable of accurately determining a current flow rate while viewing an image of a flow meter in real time at a long distance.

Flow meters are widely used in various fields. In particular, it has been used to dispense sanitizing chemicals in the correct amount when disinfecting drinking water.

An example of a flow meter is disclosed in EP 10-0650526 "Area Type Flow Meter ". In the conventional area type flow meter as described above, when a float is placed in a vertically installed taper pipe and the fluid flows upward from the lower side of the taper pipe, the float rises due to the force of the fluid applied to the float, And the float is stopped at a position where the gravity due to the mass of the float is balanced.

The area type flowmeter reads the height at which the float is stopped and detects the current flow rate to detect the current flow rate.

However, the conventional area type flow meter described above has a problem that it is difficult for the manager to observe the flow rate at a long distance because the flow rate is recognized by visually observing the position of the float. To compensate for this, the flow rate of the flowmeter is converted to a numerical value and displayed on a management computer or a display unit. However, in this case, there is a limit that the manager can not easily perceive a malfunction even if the amount of injected fluid is greater or less than the predetermined amount of fluid.

SUMMARY OF THE INVENTION An object of the present invention is to provide a flowmeter system capable of sending a current state of a flowmeter to an image signal so that an administrator can accurately recognize a supply amount of a fluid.

Another object of the present invention is to provide a flow measurement system that allows a manager to quickly recognize a malfunction by displaying a warning in the case of exceeding a predetermined fluid supply range.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention by those skilled in the art.

The object of the invention can be achieved by a flow measurement system. The flowmeter of the present invention comprises: a flow meter having a taper pipe having an inner diameter smaller toward the lower end and a float having a position varying in the vertical direction according to a flow rate of the fluid flowing along the taper pipe; A camera provided at one side of the flowmeter to photograph a current state of the flowmeter in real time to generate a video signal; A display unit for continuously displaying video signals photographed by the camera in real time; And a control unit for calculating a flow rate of the fluid through the height of the float in the taper pipe and displaying the numerical value on the display unit and controlling the display unit so that a video signal photographed by the camera is displayed on the display unit .

According to one embodiment, the flow meter and the camera are accommodated in a dark room, and an LED that maintains a constant illuminance may be provided in the dark room.

According to an embodiment, there is provided an apparatus including: an input unit for receiving a supply upper limit and a supply lower limit of a fluid; The control unit may control the warning unit to display an alarm signal when the current flow rate exceeds the upper limit or is lower than the lower limit.

The flow measurement system according to the present invention can install a camera on one side of the flow meter to observe the state of the flow meter in real time even at a long distance. In addition, the flow rate supplied through the flow meter is converted into a numerical value and displayed on the display unit. When the flow rate exceeds the fluid supply range set by the administrator, a warning signal is displayed to allow the manager to immediately recognize the malfunction of the fluid supply. Thus, the fluid can always be supplied in an accurate amount.

1 is a schematic view schematically showing a configuration of a flow rate measuring system according to the present invention,
2 is an exemplary diagram showing numerical data and image signals displayed on a display unit of the flowmeter according to the present invention.

For a better understanding of the present invention, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention may be modified into various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. The present embodiments are provided to enable those skilled in the art to more fully understand the present invention. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that in the drawings, the same members are denoted by the same reference numerals. Detailed descriptions of well-known functions and constructions which may be unnecessarily obscured by the gist of the present invention are omitted.

1 is a schematic view schematically showing the configuration of a flow measurement system 100 according to the present invention. As shown in the figure, the flow rate measuring system 100 according to the present invention includes a flow meter 110 for measuring a flow rate of a fluid F and a flow meter 110 for measuring the current state of the flow meter 110, An input unit 140 for inputting the flow rate of the fluid F and a control unit 130 for controlling the operation of the camera 120 and the camera 120. The camera 120 generates signals, the dark room 130 accommodating the flowmeter 110 and the camera 120, A display unit 160 for displaying the image signal processed by the image processing unit 150 and the current flow rate displayed on the flow meter 110, And a control unit 180 for controlling the camera 120, the display unit 160 and the warning unit 170 in response to the flow rate of the flow meter 110. [

The flow meter 110 measures the supply flow rate of the fluid F which moves across the inside. The flow rate at which the flow rate is measured through the flow meter 110 may be a liquid or a gas used in various industrial fields as well as a medicine or a disinfectant to be used in the water treatment.

The flow meter 110 used in the present invention is an area type flow meter. The flow meter 110 includes a taper pipe 111 having a smaller area as it goes downward, an inlet 113 formed at a lower portion of the taper pipe 111 and through which the fluid flows, And a float 117 inserted into the tapered pipe 111. The float 117 is formed in the tapered pipe 111,

Although not shown in the figure, graduations (not shown) are displayed at regular intervals from the top to the bottom of the taper pipe 111.

When the fluid F flows into the flow meter 110 through the inlet 113, the fluid moves upward and a pressure difference is generated between the upper and lower portions of the float 117 according to the flow velocity. The flow velocity is reduced by this pressure difference, and the float 117 stops at a point where the upper and lower pressure differentials of the float 117 and the effective weight are equal. Since the flow area of the fluid and the flow rate are proportional to each other, the flow rate can be visually measured by reading the scale (not shown) of the taper pipe 111 corresponding to the stop position.

The camera 120 is installed at one side of the flow meter 110 to photograph the flow meter 110 to generate a current state of the flowmeter 110 as a video signal. The camera 120 is fixed inside the dark room 130 to photograph the flow meter 110. The lens 121 is coupled to the front end of the camera 120. The lens 121 is provided in a range alpha in which an area between the inlet 113 and the outlet 115 of the flow meter 110 can be all photographed. The image of the flowmeter 110 photographed by the camera 120 is transmitted to the image processing unit 150.

The dark room 130 accommodates the flow meter 110 and the camera 120 therein. The dark room 130 maintains the interior of the dark room at a predetermined level so that the photographed image of the flowmeter 110 is sharpened. A display window 131 for exposing the flow meter 110 to the outside is formed on one side of the dark room 130 with a transparent material having a predetermined area. Accordingly, the manager can visually view the flowmeter 110 through the display window 131 and confirm the current flow rate.

A supply hole 133a and a discharge hole 133b through which the supply pipe 10 and the discharge pipe 20 for supplying the fluid are respectively passed are formed in the upper and lower portions of the dark room 130. [

An inner wall surface of the dark room 130 is formed in black or dark color, and an LED 135 is arranged in the upper part to maintain the illuminance constant.

The input unit 140 receives an appropriate supply amount of the fluid from the manager. The input unit 140 receives the upper limit and the lower limit of the supply amount of the fluid. The values input from the input unit 140 are transmitted to the controller 180.

The image processing unit 150 processes the image photographed by the camera 120 in a format that can be displayed on the display unit 160 and transmits the processed image to the display unit 160. [ The image processing unit 150 converts the image format captured by the camera 120 into a format that can be displayed on the display unit 160. Then, the photographed image converted by the display unit 160 is transmitted.

The display unit 160 displays the flow rate of the fluid supplied at present and displays the image signal photographed by the camera 120. To this end, the display unit 160 includes an image display unit 163 for displaying an image signal and a data display unit 161 for displaying numerical data, as shown in FIG.

The image display unit 163 displays the current state of the flow meter 110 as a real-time image so that the manager can visually check the current flow rate even at a long distance. The data display unit 160 displays the flow rate upper limit line b and the lower limit line c that are set through the input flow rate a of the fluid and the input unit 140.

The warning unit 170 sounds a warning sound when the flow rate of the fluid supplied through the flow meter 110 reaches the upper limit line b set by the manager or reaches the lower limit line b or a warning message is displayed on the display unit 160 So that the administrator can immediately recognize the malfunction of the flowmeter.

The controller 180 controls the camera 120 and the image processor 150 so that the camera 120 provided at one side of the flow meter 110 photographs the current state of the flow meter 110 and displays the current state of the flow meter 110 on the display unit 160 in real- ). Also, a value measured by the flow meter 110 is converted into a numerical value and displayed on the data display unit 160. For this, the controller 180 may further include a height sensor (not shown) for sensing the height of the float 117.

If the current flow rate of the fluid detected through the height of the float 117 exceeds the upper limit or the lower limit by comparing with the upper limit and the lower limit set by the administrator, the controller 180 outputs a warning signal .

The operation of the flow measurement system 100 according to the present invention having such a configuration will be described with reference to FIGS. 1 and 2. FIG.

A flow meter 110 is installed inside the dark room 130 and the supply pipe 10 and the discharge pipe 20 are connected to the inlet 113 and the discharge port 115 of the flow meter 110, respectively. The camera 120 is installed inside the dark room 130 so as to be separated from the flow meter 110. The camera 120 is set such that the photographing range [alpha] is the entire range of the flowmeter 110. [

At this time, the camera 120 may photograph a scale (not shown) together with the flow meter 110, or a scale (not shown) may be provided on the surface of the lens 121.

The manager can set the supply flow rate of the fluid F supplied through the flow meter 110 through the input unit 140. [ At this time, the upper limit line and the lower limit line corresponding to the supply flow rate can be inputted together to set the supply range.

Fluid F is supplied by a feed pump (not shown) in a fluid reservoir (not shown) and passes through flow meter 110. The fluid F flows into the inlet 113 of the flow meter 110 through the supply pipe 10 and is discharged to the outlet 115 via the taper pipe 111. At this time, the float 117 is moved up and down to indicate the current flow rate of the fluid F. A scale (not shown) of the height at which the float 117 is currently positioned represents the current flow rate of the fluid F.

The camera 120 captures the flow meter 110 and transmits the current flow meter 110 status to the image processor 150 as a video signal. The image processing unit 150 converts the image signal captured by the camera 120 into an image format that can be displayed on the display unit 160, and transmits the image signal to the display unit 160.

The control unit 180 controls the display unit 160 to display a video signal transmitted to the display unit 160 on the video display unit 163. As a result, the state of the flow meter 110 is displayed as a real-time image on the image display unit 163 as shown in FIG. The manager moves directly to the dark room 130 to check the position of the float 117 on the image displayed on the display unit 160 at a long distance without observing the flow meter 110 through the display window 131, Flow rate can be confirmed.

The current flow rate a and the upper limit line b and the lower limit line c set by the administrator are also displayed on the display unit 160. The current flow rate (a) indicates a value converted into a value after the controller 180 detects the height of the float 117. At this time, it is possible to express the input amount of the fluid at L, kg, and m3 as hr & min.

The control unit 180 compares the current flow rate a displayed on the display unit 160 with the upper limit line b and the lower limit line c to determine whether or not the warning unit 170 is in a state of exceeding the upper limit line b, To display an alarm signal.

The warning unit 170 sounds a warning sound or displays a warning message on the display unit 160 so that the manager immediately recognizes that there is an abnormality in the fluid supply flow rate.

As described above, in the flowmeter according to the present invention, a camera is installed on one side of the flowmeter, and the state of the flowmeter can be observed in real time even at a long distance. In addition, the flow rate supplied through the flow meter is converted into a numerical value and displayed on the display unit. When the flow rate exceeds the fluid supply range set by the administrator, a warning signal is displayed to allow the manager to immediately recognize the malfunction of the fluid supply. Thus, the fluid can always be supplied in an accurate amount.

The embodiments of the flowmeter of the present invention described above are merely illustrative and those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. It will be possible. Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

100: Flow measurement system 110: Flow meter
111: taper pipe 113: inlet
115: Outlet 117: Float
120: camera 121: lens
130: dark room 131: display window
140: Input unit 150: Image processing unit
160: Display section 161: Data display section
163: video display section 170: warning section
180:

Claims (3)

A taper pipe having an inner diameter smaller toward the lower end, an inlet formed at a lower portion of the taper pipe to receive a fluid, an outlet formed at an upper portion of the taper pipe to discharge a fluid, A flow meter having a float whose vertical position changes according to a flow rate;
A camera provided at one side of the flowmeter to photograph a current state of the flowmeter in real time to generate a video signal;
A display window for exposing the flowmeter to the outside is formed in a transparent material having a predetermined area, and a supply hole and a discharge hole, through which a supply pipe for supplying fluid and a discharge pipe, respectively, A dark room in which LEDs are arranged to maintain a constant illuminance;
An input unit for receiving a fluid supply upper limit and a fluid supply lower limit;
An image processor for processing a video signal photographed by the camera;
A display unit including a video display unit for displaying video signals processed by the image processing unit, and a data display unit for displaying a flow rate of the fluid being supplied and a supply upper limit and a supply lower limit set through the input unit in numerical values;
An alarm unit for displaying a warning signal when the fluid is turned on or off;
And a control unit for controlling the camera, the image processing unit, the display unit, and the warning unit in accordance with the flow rate of the flowmeter,
Wherein the control unit calculates the flow rate of the fluid through the height of the float in the taper pipe, displays the flow rate on the data display unit, displays the image signal photographed by the camera on the image display unit, Or the warning lower limit is lower than the lower limit of supply, the warning unit displays a warning signal. delete delete
KR1020150141111A 2015-10-07 2015-10-07 Flowmeter system using image KR101624847B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021173604A1 (en) * 2020-02-24 2021-09-02 Des-Case Corporation Apparatuses, systems, and methods for providing a smart liquid information indicator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003121216A (en) * 2001-10-11 2003-04-23 Disco Abrasive Syst Ltd Float type flowmeter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003121216A (en) * 2001-10-11 2003-04-23 Disco Abrasive Syst Ltd Float type flowmeter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021173604A1 (en) * 2020-02-24 2021-09-02 Des-Case Corporation Apparatuses, systems, and methods for providing a smart liquid information indicator

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