KR101994890B1 - Unit for measuring volume of liquid/gas and apparatus for controlling supply of liquid/gas comprising the same - Google Patents

Abstract

The present invention relates to a liquid / gas volume measurement unit and a liquid / gas volume adjustment device including the same, wherein the liquid / gas discharged from the supply tube is divided into a spherical shape and a non- It is possible to measure the volume of the liquid / gas more precisely, and it is possible to control the supply amount of the liquid / gas more accurately by using this.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid / gas volume measurement unit and a liquid / gas volume control unit including the same. 2. Description of the Related Art [0002]

The present invention relates to a liquid / gas volume measurement unit and a liquid / gas volume adjustment apparatus including the same.

Generally, treatment facilities such as waste water treatment plants and sewage treatment plants treat the polluted water physically or biologically and discharge them to the general water system through the final discharge outlet. At this time, the water quality discharged from the discharge outlet should be constantly managed, It is also essential to measure the pollution of the water quality.

The pre-treatment type of the water quality measuring apparatus for measuring the water quality as described above can measure COD (chemical oxygen demand), TN (total nitrogen), TP (total phosphorus) And the water quality is measured by a pretreatment process.

Korean Unexamined Patent Publication No. 10-1998-025532 (published on Jun. 15, 1998) discloses an automatic water quality measuring apparatus using a cylinder type syringe unit.

The Korean patent also discloses that the role of the congestion tank, the reaction tank, the titration device, the metering device, the diluting device, and the measuring tank are simultaneously performed through the syringe unit 1 provided with the stirring device 2 and the detecting device 3 without a separate peristaltic pump The manufacturing cost can be reduced, and the device can be manufactured compactly.

However, in the case of the Korean patent, there is a disadvantage in that it is impossible to measure the contamination degree of the sample more precisely by supplying an appropriate amount of reagent according to the contamination degree of the sample by accurately measuring the volume when the supplied reagent is spherical and not spherical do.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a method of measuring a liquid / gas volume by dividing a liquid / gas discharged from a supply tube into a spherical shape and a non- And to provide a liquid / gas volume control unit using the liquid / gas volume measurement unit.

The problems to be solved by the present invention are not limited thereto, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.

To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, An image acquiring unit that is provided outside the supply tube and acquires image information of the liquid / gas through at least one image sensor that senses the liquid / gas; And a volume calculating unit for calculating a volume of the liquid / gas by measuring a distance or a width between the top and bottom points of the liquid / gas through the image information. to provide.

Further, an embodiment of the present invention includes a liquid / gas volume measurement unit; A controller for outputting a control signal when the supply amount of the liquid / gas is out of a predetermined setting range through volumetric information generated from the liquid / gas volume measurement unit; And a supply controller for regulating a discharge amount of the liquid / gas through the control signal.

According to the embodiment of the present invention, it is possible to measure the liquid / gas volume more precisely by dividing the liquid / gas discharged from the supply tube into a spherical shape and a non-spherical shape, Can be controlled.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims .

1 is a block diagram showing a schematic configuration of a liquid / gas volume side unit according to an embodiment of the present invention.
Figure 2 is a perspective and partial cutaway view of the liquid / gaseous volume measuring unit of Figure 1;
3 is a view for explaining the linear light source and the image sensor of FIG.
4 is a graph showing output values output by the image sensor of the liquid / gas volume measurement unit of Fig.
5 is a view for explaining a process of calculating the volume of the liquid / gas by the volume calculating unit when the first image sensor of FIG. 3 acquires the first image information.
FIG. 6 is a view for explaining the process of calculating the volume of the liquid / gas by the volume calculating unit when the second image sensor acquires the first image information and the second image information; FIG.
FIG. 7 is a graph showing the relationship between the volume of the liquid / gas calculated by the volume calculating section when the first image sensor of FIG. 3, the second image sensor, and the third image sensor acquire the first image information, the second image information, And FIG.
FIG. 8 is a view for explaining the process of deriving the outline of the liquid / gas through the volume information of the volume calculation unit of FIG. 1;
9 is an exploded perspective view of the image acquiring unit of FIG.
10 is a block diagram showing a schematic configuration of a liquid / gas supply amount adjusting apparatus according to an embodiment of the present invention.
11 is a perspective view and a partial cut-away view of a liquid / gas supply amount adjusting apparatus according to an embodiment of the present invention.
12 is a perspective view and a partial cutaway view for explaining the supply control unit of Fig.
FIG. 13 is a perspective view and a partial cutaway view for explaining another example of the supply adjusting portion of FIG. 11; FIG.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected to or connected to the other component, It should be understood that an element may be "connected," "coupled," or "connected."

1 is a block diagram showing a schematic configuration of a liquid / gas volume measuring unit according to an embodiment of the present invention. Figure 2 is a perspective and partial cutaway view of the liquid / gaseous volume measuring unit of Figure 1; 3 is a view for explaining the linear light source and the image sensor of FIG. 4 is a graph showing output values output by the image sensor of the liquid / gas volume measurement unit of Fig. 5 is a view for explaining a process of calculating the volume of the liquid / gas by the volume calculating unit when the first image sensor of FIG. 3 acquires the first image information. FIG. 6 is a view for explaining the process of calculating the volume of the liquid / gas by the volume calculating unit when the second image sensor acquires the first image information and the second image information; FIG. FIG. 7 is a graph showing the relationship between the volume of the liquid / gas calculated by the volume calculating section when the first image sensor of FIG. 3, the second image sensor, and the third image sensor acquire the first image information, the second image information, And FIG. FIG. 8 is a view for explaining the process of deriving the outline of the liquid / gas through the volume information of the volume calculation unit of FIG. 1; 9 is an exploded perspective view of the image acquiring unit of FIG. 10 is a block diagram showing a schematic configuration of a liquid / gas supply amount adjusting apparatus according to an embodiment of the present invention. 11 is a perspective view and a partial cut-away view of a liquid / gas supply amount adjusting apparatus according to an embodiment of the present invention. 12 is a perspective view and a partial cutaway view for explaining the supply control unit of Fig. FIG. 13 is a perspective view and a partial cutaway view for explaining another example of the supply adjusting portion of FIG. 11; FIG.

As shown in these figures, the liquid / gas volume measurement unit 10 according to an embodiment of the present invention includes a supply tube 101 through which liquid / gas is discharged; An image acquiring unit 201 provided outside the supply tube 101 and acquiring image information I1 of the liquid / gas through at least one image sensor 103 sensing the liquid / gas; And a volume calculator 105 for calculating the volume of the liquid / gas by measuring a distance or a width between the uppermost point and the lowermost point of the liquid / gas through the image information I1.

The supply tube 101 is made of a synthetic resin material such as silicone having elasticity and an elastic material such as rubber and is made of a transparent material through which light is transmitted.

The image acquiring unit 201 acquires image information I1 of the liquid / gas through one or more image sensors 103 provided outside the supply tube 101 and sensing liquid / gas, and the image acquiring unit 201 may further include a linear light source 107 for irradiating the light source such that the image sensor 103 can acquire the image information I1.

Here, the image sensor 103 captures the liquid / gas through the flash or light emitted from the linear light source 107 to acquire the image information I1, for example, a charge-coupled device camera (CCD camera) That is, the photographed image can be converted into an electric signal by using one charge coupled device CCD of a digital camera and stored in a storage medium such as a flash memory as digital data.

For example, the image acquisition unit 201 may acquire the image information I1 through the amplitude of the output values obtained through the image sensor 103, as shown in Fig. 4, more specifically, the liquid / The image information I1 can be acquired through the interval between the highest point H1 and the lowest point L1 by deriving the highest point H1 and the lowest point L1 using the time difference between the highest point H1 and the lowest point L1.

On the other hand, the image acquiring section 201 acquires the first point X located at one point of the supply tube 101, the second point Y located at a point different from the first point X, Each image information I1 is obtained at a point on two of the third points Z located at different points from the first point X and the second point Y. [

That is, the image acquiring unit 201 acquires the first image information I1-1 of the liquid / gas at the first point X located at the one point of the supply tube 101 ); A second image sensor 303 for acquiring liquid / gas second image information I1-2 at a second point Y located at a point different from the first point X; And a third image sensor (305) for acquiring liquid / gas third image information (I1-3) at a third point (Z) located at a point different from the first point (X) and the second point ); ≪ / RTI >

Of course, the linear light source 107 provided in the image acquisition unit 201 may be provided at a position corresponding to the first image sensor 301 so that the first image sensor 301 acquires the first image information I1-1 A first linear light source 307 for irradiating a light source so that the light source can be illuminated; A second linear light source 309 provided at a position corresponding to the second image sensor 303 to irradiate the light source such that the second image sensor 303 can acquire the second image information I1-2; And a third linear light source 311 provided at a position corresponding to the third image sensor 305 to irradiate the light source so that the third image sensor 305 can acquire the third image information I1-3, .

5 to 7, the image acquiring unit 201 acquires the image information I1 by photographing the liquid / gas at the upper portion T1 and the lower portion T2 with a time difference, And the second image sensor 303 and the third image sensor 305 respectively acquire the image information I1 will be described in detail.

First, the first image sensor 301 captures the liquid / gas at the upper portion T1 of the first point X with a time difference to obtain the upper first image information Ia, And captures the liquid / gas at the lower portion T2 to obtain the lower first image information Ib.

The second image sensor 303 photographs the liquid / gas at the upper portion T1 of the second point Y with a time difference to obtain the upper second image information Ic, And captures the liquid / gas at the lower portion T2 to obtain the lower second image information Id.

Further, the third image sensor 305 acquires the upper third image information Ie by taking a liquid / gas at the upper portion T1 of the third point Z with a time difference, And captures the liquid / gas at the lower portion T3 to acquire the lower third image information If.

3 and 9, the image obtaining unit 201 includes a guide body 209 and a binding member 211. [

The guide body 209 includes at least one of the image sensor 103 and the linear light source 107. In the drawings, the linear light source 107 and the linear light source 107 are provided at positions corresponding to each other in order to obtain the image information I1. An image sensor 103 is provided and a first through hole 213 through which the supply tube 101 is inserted is formed.

The first through-hole 213 is formed to be larger than the diameter of the supply tube 101 so that the guide body 209 is freely displaced along the supply tube 101.

The bundling member 211 includes a first body 401 extending from the guide body 209 along the longitudinal direction of the supply tube 101 and a second body 401 extending from the first body 401 in a direction perpendicular to the supply tube 101 The first body 401 is separated from the first body 401 when it is moved in one direction perpendicular to the supply tube 101. When the first body 401 and the second body 401 are moved in the other direction perpendicular to the supply tube 101, And a second body 403 which is in close contact with the supply tube 101.

The first body 401 extends from the guide body 209. The first body 401 has a first coupling groove 405 tightly coupled to one side of the supply tube 101, And is recessed radially outward.

The first body 401 includes a guide portion 407. The guide portion 407 includes a first guide groove 409 formed on both sides of the guide tube 407 in a direction perpendicular to the supply tube 101, The first guide part 411 and the first guide part 411 protrude from the inside of the first guide groove 409 in the longitudinal direction of the first guide groove 409, And an elastic member 413 that provides an elastic force in a direction in which the body 403 is closely contacted.

The first guide part 411 is provided with a coupling pin 417 penetratingly coupled to a pin coupling hole 415 formed at an end of the first guide part 411. The coupling pin 417 is inserted into the first guide part 411 with an elastic member 413 And the second guide portion 419 to be described later is engaged, the first guide portion 411 serves as a latching jaw to prevent the elastic member 413 and the second guide portion 419 from separating from each other.

The second body 403 is tightly coupled to the other side of the supply tube 101 and is in close contact with the first engagement groove 405 to form a second through hole 313 communicated with the first through hole 213. [ The engaging groove 421 is recessed radially outward of the supply tube 101.

The diameter of the second through hole 313 is larger than the diameter of the first through hole 213 so that when the first body 401 and the second body 403 are in close contact with the outer circumferential surface of the supply tube 101, do.

The second body 403 includes a guide engaging portion 423 that is movably coupled to the first body 401 in a direction perpendicular to the supply tube 101.

The guide engaging portion 423 includes a second guide groove 427 which is recessed in a direction opposite to the first guide groove 409 and in which a first slit 425 is formed along the longitudinal direction, A through hole 429 penetratingly coupled to the guide portion 411 is formed and one end thereof is movably coupled to the first guide groove 409 and the first guide portion 411 is communicated with the through hole 429 on the inner side, And a second guide portion 419 having a guide hole 431 for receiving the elastic member 413 and the other end being coupled to the second guide groove 427. [

The second guide portion 419 is formed with a release preventing portion 435 slidably coupled to the first slit 425 at the other end in the vertical direction. Due to the structure in which the release preventing portion 435 is formed, (Not shown) formed on the inner side of the second guide groove 427 when it is inserted into the second guide groove 427 and rotated in one direction or the other direction to prevent the second guide groove 427 from being separated from the second guide groove 427 .

The second guide portion 419 is formed on both sides in the longitudinal direction and has a second slit 437 which is slidable with the engagement pin 417. The structure in which the second slit 437 is formed exerts an external force The first guide part 411 is prevented from being separated from the first guide part 411 when the first guide part 411 is moved in a direction away from the first body 401. [

With the above structure, when an external force is applied to the second body 403 in the direction away from the first body 401, the coupling member 211 is engaged with the engaging jaw (not shown) of the second guide groove 429 The first body 401 and the second body 403 are spaced apart from each other while the hooked second guide portion 419 presses the elastic member 413 and moves along the first guide portion 411. At this time, The guide main body 209 is displaced along the supply tube 101 as the second engagement groove 421 of the guide tube 403 is separated from the supply tube 101. [

Conversely, when the external force is released from the second body 403, the other end of the elastic member 413, which is supported by the engagement pin 417 and the other end is pressed by the step portion 439 of the second guide portion 419, The second body 403 is moved in the direction of the first body 401 together with the second guide portion 419 by the elastic force and the second coupling groove 421 of the second body 403 is moved in the direction of the supply tube 101 The guide main body 209 is fixed in position from the supply tube 101. As shown in Fig.

With the above structure, the image obtaining unit 201 can obtain image information I1 closer to spherical.

In other words, as shown in FIG. 1, the liquid / gas is discharged from the initial supply tube 101 and agglomerated into a more spherical shaped shape over time by the cohesive force, The position of the liquid / gas to the position of the spherically cohered supply tube 101, thereby reducing the error range of the liquid / gas volume calculation value.

Next, the volume calculating section 105 calculates the volume of the liquid / gas by measuring the distance or width between the top and bottom points of the liquid / gas through the image information I1.

The volume calculating unit 105 compares the image information I1 obtained at the first point X and the points on two of the second point Y and the third point Z to derive an error range And determines that the liquid / gas is not spherical when the error range is out of the predetermined setting range, and calculates the volume when the error range is outside the predetermined setting range.

Here, when it is determined that the liquid / gas is spherical, the volume calculating unit 105 can easily calculate the volume of the liquid / gas through a formula for obtaining a volume of a general sphere.

On the other hand, when it is judged that the liquid / gas is not spherical, there is generally a limit to calculate the volume of the liquid / gas only by the formula for calculating the volume of the sphere.

Therefore, the volume calculating section 105 calculates the volume of liquid (liquid) obtained from the imaginary line connecting the distance between the top and bottom points of the liquid / gas and the pixels PS of the liquid / / The volume is calculated through the length of the outline of the gas.

More specifically, the volume calculating unit 105 calculates the volume of the liquid / gas by calculating the height (H1, H2, H3, H4) or the maximum width (W1, W2, W3, W4) The image information I1 is converted into a binary image having a plurality of pixel values PS and the image of the liquid / gas derived from an imaginary line connecting a pixel PS1 located in the radial direction from the center of the binary image among the plurality of pixels The volume of the liquid / gas is calculated through the combination of the outer lines (L).

5 to 7, when the image obtaining unit 201 includes one or more of the first image sensor 301, the second image sensor 303, and the third image sensor 305, The process of calculating the liquid / gas volume through the image information I1 will be described in detail.

When the image obtaining unit 201 includes only the first image sensor 301, the volume calculating unit 105 calculates the volume of the upper first image information Ia through the uppermost point P1 and the lowest point P2 of the upper first image information Ia, The height H1 of the liquid / gas at the lower portion T1 is calculated and the height of the liquid / gas at the lower portion T1 through the uppermost point P1 and the lowest point P2 of the lower first image information Ib H2).

The volume calculator 105 compares the heights H1 and H2 of the liquid / gas in the upper portion T1 and the lower portion T2 and determines whether the liquid / It is determined that the liquid / gas is spherical and the volume of the liquid / gas is calculated. When the error range is out of the preset range, it is determined that the liquid / gas is not spherical and the volume of the liquid / gas is calculated.

6, when the image obtaining section 201 includes the first image sensor 301 and the second image sensor 303, the volume calculating section 105 calculates the upper first image information 301, The maximum width W1 of the liquid at the upper portion T1 of the first point X is calculated through the lower first image information Ib and the lower portion T2 of the first point X The maximum width W2 of the liquid / gas in the air /

The volume calculating section 105 calculates the maximum width W3 of the liquid / gas at the upper portion T1 of the second point Y via the upper second image information Ic and the lower second image information Ic (W4) of the liquid / gas at the lower portion (T2) of the second point (Y)

The volume calculator 105 calculates the maximum width W1 of the upper portion T1 and the maximum width W2 of the lower portion T2 and the maximum width W3 of the upper portion T1 and the maximum width W2 of the lower portion T2 W4), and when the error range is within the predetermined setting range, it is determined that the liquid / gas is spherical. The liquid / gas volume is calculated. When the error range is out of the predetermined setting range, It is determined that the liquid is not spherical, and the volume of the liquid / gas is calculated.

Alternatively, the volume calculating section 105 may calculate the average width (W1) through the maximum width W1 at the upper portion T1 of the first point X and the maximum width W3 at the upper portion T1 of the second point Y A1 and calculates the average width A2 through the maximum width W2 at the lower portion T2 of the first point X and the maximum width W4 at the lower portion T2 of the second point Y And compares the average widths A1 and A2, and when the error range is within the predetermined setting range, it is determined that the liquid / gas is spherical and the volume is calculated. When the error range is out of the predetermined setting range, / The volume can be calculated by judging that the gas is not spherical.

  7, when the image obtaining unit 201 includes the first image sensor 301, the second image sensor 303, and the third image sensor 305, the volume calculating unit 105 calculates the maximum width W1 of the liquid / gas at the upper portion T1 of the first point X through the first image information Ia and calculates the maximum width W1 of the liquid / (W2) of the liquid / gas at the lower portion (T2) of the liquid (X).

The volume calculating section 105 calculates the maximum width W3 of the liquid / gas at the upper portion T1 of the second point Y via the upper second image information Ic and the lower second image information Ic (W4) of the liquid / gas at the lower portion (T2) of the second point (Y)

The volume calculating unit 105 calculates the height H3 of the liquid / gas at the upper portion T1 of the third point Z through the upper third image information Ie and the lower third image information Ie The height H4 of the liquid / gas at the lower portion T2 of the third point Z is calculated.

The volume calculating unit 105 calculates the maximum width W1 of the upper portion T1 and the maximum width W2 of the lower portion T2 and the maximum width W3 of the upper portion T1 and the maximum width W2 of the lower portion T2, W4 and the height H3 at the upper portion T1 and the height H4 at the lower portion T2 are compared with each other and it is judged that the liquid / gas is spherical when the error range is included in the predetermined setting range. The volume of the liquid / gas is calculated, and when the error range is out of the preset range, the liquid / gas is judged not to be spherical and the volume of the liquid / gas is calculated.

Alternatively, the volume calculating section 105 may calculate the maximum width W1 at the upper portion T1 of the first point X, the maximum width W3 at the upper portion T1 of the second point Y, Z of the first point X and the height H3 at the top T of the second point Y. The maximum width W2 at the lower portion T2 of the first point X and the maximum width W2 of the second point Y The average width A4 is calculated through the maximum width W4 at the second point T2 and the height H4 at the bottom T2 of the third point Z and the respective average widths A1 and A2 are compared If the error range is within the preset range, it is determined that the liquid / gas is spherical and the volume is calculated. If the error range is outside the predetermined error range, the liquid / gas may be determined to be not spherical have.

10 to 13, a liquid / gas supply adjusting device 20 according to an embodiment of the present invention includes a liquid / gas volume measuring unit 10; A control unit 109 for outputting a control signal S1 when the supply amount of the liquid / gas is out of a predetermined setting range through the volume information I2 generated from the liquid / gas volume measurement unit 10; And a supply control unit (111, 801) for controlling the discharge amount of the liquid / gas through the control signal (S1).

 Since the liquid / gas volume measurement unit 10 is the same as the above-described configuration, detailed description thereof will be omitted.

However, the supply tube 101 of the liquid / gas volume measuring unit 10 included in the liquid / gas supply adjusting device 20 is a part of the liquid / And a feedback unit 207 for allowing the air to flow backward.

More specifically, when the supply tube 101 is pressurized by the supply regulating portion 111 and the average diameter of the discharge tube 101 is reduced, the pressure of the supply tube 101 rises and the proper discharge amount of the liquid / At this time, the feedback unit 207 bypasses a portion of the liquid / gas that has not been discharged by the supply control unit 111 and supplies the liquid / gas again to the upper portion of the image acquisition unit 201, So that the liquid / gas can be maintained at an appropriate discharge rate.

On the other hand, the supply controller 111 controls the discharge amount of the liquid / gas by pressurizing or depressurizing the supply tube 101 of the elastic body by the control signal S1.

Referring to FIGS. 11 and 12, the supply regulator 111 according to an embodiment of the present invention includes a base portion 601 provided outside the supply tube 101 and supporting the supply tube 101; A driving unit 605 provided in the base unit 601 and driven by the control signal S1 and having a first gear unit 603); The second gear portion 607 is coupled to the base portion 601 and meshes with the first gear portion 603. The second gear portion 607 moves in a direction perpendicular to the supply tube 101 as the drive portion 605 is driven. A power transmitting member 609 which is formed of a metal plate; And the power transmission member 609 is provided at the other end of the power transmission member 609 to pressurize or depressurize the supply tube 101 as the power transmission member 609 is moved in the direction perpendicular to the supply tube 101 to adjust the discharge amount of the liquid / And a pressing member 611.

The first gear portion 603 includes a first pulley 613 coupled to one end of the driving portion 605, a second pulley 615 rotatably coupled to the base portion 601 and having threads on an inner peripheral surface thereof, And a belt 617 for transmitting the rotational force of the first pulley 613 to the second pulley 615.

Further, the power transmitting member 609 may be provided with a threaded ball screw structure that engages with the threads of the second pulley 615 on the outer circumferential surface. With this structure, as the second pulley 615 is rotated, (611) in the direction perpendicular to the supply tube (101).

The power transmitting member 609 further includes a guide member 619 whose one end is engaged with the pressing member 611 and the other end is movably penetrated through the base portion 601. With this structure, 611 can be moved more stably.

The pressing member 611 is formed to protrude inward and is formed with a pressing portion 621 that pressurizes or depressurizes the supply tube 101 when it is moved in the direction perpendicular to the supply tube 101 by the driving portion 605 .

Meanwhile, the supply regulating unit 801 according to another embodiment of the present invention includes a base portion 803 provided outside the supply tube 101 and supporting the supply tube 101; A driving unit 805 provided in the base unit 803 and driven by the control signal S1; And a pressing unit 807 for controlling the discharge amount of the liquid / gas by pressurizing or depressurizing the supply tube 101 of the elastic body as the driving unit 805 is driven.

Here, the pressing portion 807 includes a rotating member 809 which is axially penetrated by the supply tube 101 and moves upward or downward along the supply tube 101 when the driving portion 805 is driven; And the rotary member 809 are movably extrapolated so that the supply tube 101 is pressed when the rotary member 809 is moved upward and the supply tube is depressurized when the rotary member 809 is moved downward And a pressure member (811) for adjusting the discharge amount of the liquid / gas.

The rotating member 809 is engaged with one end of the power transmitting member 813 rotated by the driving unit 805 and is moved upward or downward as the power transmitting member 813 rotates.

The power transmitting member 813 includes a gear portion 815 and a ball screw 817.

The gear portion 815 is rotatably coupled to the base portion 803, and is rotated by the driving portion 805, and a thread is formed on the inner peripheral surface.

The ball screw 817 is movably coupled to the base portion 803 in a vertically movable manner and has one end coupled to the rotary member 809 and a thread engaged with the thread of the gear portion 815 formed on the outer circumferential surface thereof, 815 are rotated together with the rotary member 809 as shown in FIG.

The pressing member 811 is extruded so that the rotary member 809 can move up and down.

The tapered portion 819 is formed such that the diameter of the pressing member 811 gradually increases toward the outer side in the radial direction and the inner peripheral surface of the rotating member 809 is tapered toward the tapered portion 819 The inner circumferential surface of the rotary member 809 gradually comes in contact with the outer circumferential surface of the tapered portion 819 as the rotary member 809 is moved downward so that the supply tube 101 is brought into close contact with the outer circumferential surface of the tapered portion 819, The pressure is reduced.

Of course, the supply regulating section 111 may be composed of any one of a needle valve, a gate valve, a solenoid valve, a check valve, a globe, a butterfly, a ball valve, and an actuator instead of a structure for pressurizing or depressurizing the supply tube 101 .

As described above, according to the embodiment of the present invention, it is possible to measure the liquid / gas volume more precisely by dividing the liquid / gas discharged from the supply tube into a spherical shape and a non-spherical shape, It is possible to control the supply amount of the liquid / gas precisely.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them.

It is also to be understood that the terms such as " comprises, "" comprising," or "having ", as used herein, mean that a component can be implanted unless specifically stated to the contrary. But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: liquid / gas volume measuring unit
20: Liquid / gas supply regulator
103: Image sensor 105: Volume calculation unit
107: Linear light source 109:
111: supply control unit 201: image acquisition unit
207: feedback section 209: guide body
211: binding member 213: first through hole
301: first image sensor 303: second image sensor
305: third image sensor 307: first linear light source
309: second linear light source 311: third linear light source
313: second through hole 401: first body
403: second body 405: first coupling groove
407: guide portion 409: first guide groove
411: first guide portion 413: elastic member
415: pin coupling hole 417: coupling pin
419: second guide portion 421: second engaging groove
423: guide engaging portion 425: first slit
427: second guide groove 429: through hole
431: guide hole 435:
437: second slit 601: base portion
603: first gear portion 605:
607: Second gear portion 609: Power transmission member
611: pressing member 613: first pulley
615: second pulley 617: belt
619: guide member 801:
803: base portion 805:
807: pressing portion 809: rotating member
811: pressing member 813: power transmitting member
815: gear portion 817: ball screw
819:

Claims (10)

A supply tube through which the liquid / gas is discharged;
An image acquiring unit that is provided outside the supply tube and acquires image information of the liquid / gas through at least one image sensor that senses the liquid / gas; And
A volume calculating unit for calculating a volume of the liquid / gas by measuring a distance or a width between a top point and a bottom point of the liquid / gas through the image information;
, ≪ / RTI &
Wherein the image obtaining unit comprises:
A second point located at a point other than the first point and a third point located at a point different from the first point and the second point; Acquiring each of the image information at two or more points of the image,
The volume calculating unit calculates,
Comparing the image information obtained at each of the first point, the second point and the third point with each other to derive an error range; and when the error range is included in the predetermined setting range, / The gas is determined to be spherical, and when the error range is out of the predetermined setting range, it is determined that the spherical shape is not the spherical shape, and the volume is calculated. delete delete The method according to claim 1,
The volume calculating unit calculates,
And the volume is calculated through a length obtained from an imaginary line connecting the distance between the top and bottom points of the liquid / gas and the pixel of the liquid / gas pixel when the error range is out of the setting range / RTI > liquid / gas volume measurement unit. The method according to claim 1,
Wherein the image obtaining unit comprises:
A first image sensor for acquiring first image information of the liquid / gas at the first point located at a point of the supply tube;
A second image sensor for acquiring second image information of the liquid / gas at the second point located at a point different from the first point; And
A third image sensor for acquiring third image information of the liquid / gas at the third point located at a point different from the first point and the second point;
The liquid / gas volume measuring unit comprising: A liquid / gas feed rate adjustment device comprising:
A liquid / gas volume measuring unit according to any one of claims 1 to 5,
A controller for outputting a control signal when the supply amount of the liquid / gas is out of a predetermined setting range through volumetric information generated from the liquid / gas volume measurement unit; And
A supply controller configured to regulate a discharge amount of the liquid / gas through the control signal;
Wherein the liquid / gas supply amount adjustment device comprises: The method according to claim 6,
The supply regulating unit includes:
And the supply amount of the liquid / gas is regulated by pressurizing or depressurizing the supply tube of the elastic body by the control signal. 8. The method of claim 7,
The supply regulating unit includes:
A base portion provided outside the supply tube and supporting the supply tube;
A driving unit provided in the base unit and driven by the control signal; And
A pressurizing unit that pressurizes or depressurizes the supply tube of the elastic body to adjust the discharge amount of the liquid / gas as the drive unit is driven;
Wherein the liquid / gas supply amount adjustment device comprises: An image acquiring unit that acquires image information of the liquid / gas through at least one image sensor provided outside the supply tube and sensing the liquid / gas, the image acquiring unit acquiring image information of the liquid / And a volume calculating unit for calculating a volume of the liquid / gas by measuring a distance or a width between the top and bottom points of the liquid / gas through the liquid / gas volume measuring unit;
A controller for outputting a control signal when the supply amount of the liquid / gas is out of a predetermined setting range through volumetric information generated from the liquid / gas volume measurement unit; And
A supply regulator for regulating a discharge amount of the liquid / gas by pressurizing or depressurizing the supply tube of the elastic body by the control signal;
Lt; / RTI >
The supply regulating unit includes:
A base portion provided outside the supply tube and supporting the supply tube;
A driving unit provided in the base unit and driven by the control signal; And
A pressurizing unit that pressurizes or depressurizes the supply tube of the elastic body to adjust the discharge amount of the liquid / gas as the drive unit is driven;
, ≪ / RTI &
The pressing portion
A power transmitting member inserted through the base portion in a direction perpendicular to the supply tube and having a gear portion rotatable together with the drive portion at one end thereof and being moved in a direction perpendicular to the supply tube as the drive portion is driven; And
A pressure member provided at the other end of the power transmitting member to adjust a discharge amount of the liquid / gas by pressurizing or depressurizing the supply tube as the power transmitting member is moved in a direction perpendicular to the supply tube;
Wherein the liquid / gas supply amount adjustment device comprises: An image acquiring unit that acquires image information of the liquid / gas through at least one image sensor provided outside the supply tube and sensing the liquid / gas, the image acquiring unit acquiring image information of the liquid / And a volume calculating unit for calculating a volume of the liquid / gas by measuring a distance or a width between the top and bottom points of the liquid / gas through the liquid / gas volume measuring unit;
A controller for outputting a control signal when the supply amount of the liquid / gas is out of a predetermined setting range through volumetric information generated from the liquid / gas volume measurement unit; And
A supply regulator for regulating a discharge amount of the liquid / gas by pressurizing or depressurizing the supply tube of the elastic body by the control signal;
Lt; / RTI >
The supply regulating unit includes:
A base portion provided outside the supply tube and supporting the supply tube;
A driving unit provided in the base unit and driven by the control signal; And
A pressurizing unit that pressurizes or depressurizes the supply tube of the elastic body to adjust the discharge amount of the liquid / gas as the drive unit is driven;
, ≪ / RTI &
The pressing portion
A rotating member that is axially pierced by the supply tube and moves up or down along the supply tube when the drive unit is driven; And
The rotary member is extensively moved, the supply tube is pressurized when the rotary member is moved upward, and the discharge amount of the liquid / gas is regulated by depressurizing the supply tube when the rotary member is moved downward A pressing member;
Wherein the liquid / gas supply amount adjustment device comprises:

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