CN216117672U - Flow velocity monitoring equipment based on video acquisition - Google Patents

Abstract

The application discloses velocity of flow monitoring facilities based on video acquisition includes: the device comprises a processor device, a wire winding and unwinding device, a wire, a counterweight, a scale plate and a video acquisition device, wherein the first end of the wire is connected with the wire winding and unwinding device, and the second end of the wire is connected with the counterweight; the scale plate is arranged at a preset position with the height lower than that of the cord winding and unwinding device, and the position of the scale plate corresponds to that of the cord under the condition that the cord winding and unwinding device releases the cord; the video acquisition device is arranged towards the scale plate and is used for acquiring a video image of the scale plate; and the processor device is respectively connected with the video acquisition device and the wire rope winding and unwinding device.

Description

Flow velocity monitoring equipment based on video acquisition

Technical Field

The application relates to the technical field of monitoring, in particular to flow velocity monitoring equipment based on video acquisition.

Background

Flow measurement has been a concern, particularly in rivers, rivers and channels. With the stricter and stricter national water resource management, the flow measurement technologies such as ultrasonic waves, electromagnetism and Venturi are adopted for measuring the flow of rivers, rivers and channels in China, but the method is greatly influenced by the quality of river water and the channels of the rivers. In addition, the existing flow rate monitoring equipment firstly acquires an image of the river and then calculates the flow rate of the river through a calculation model based on a neural network. Such an approach has the following problems: the collected images of the river cannot visually reflect the flow velocity of the river and can be realized only by a complex algorithm based on a neural network.

Aiming at the technical problems that the existing flow velocity monitoring equipment in the prior art is easily influenced by external factors and has high complexity in the process of measuring the flow velocity, an effective solution is not provided at present.

SUMMERY OF THE UTILITY MODEL

The utility model provides a flow velocity monitoring device based on video acquisition, which at least solves the technical problems that the existing flow velocity monitoring device in the prior art is easily influenced by external factors and has high complexity in the process of measuring the flow velocity.

According to an aspect of the present application, there is provided a flow rate monitoring device based on video acquisition, comprising: the device comprises a processor device, a wire winding and unwinding device, a wire, a counterweight, a scale plate and a video acquisition device, wherein the first end of the wire is connected with the wire winding and unwinding device, and the second end of the wire is connected with the counterweight; the scale plate is arranged at a preset position with the height lower than that of the cord winding and unwinding device, and the position of the scale plate corresponds to that of the cord under the condition that the cord winding and unwinding device releases the cord; the video acquisition device is arranged towards the scale plate and is used for acquiring a video image of the scale plate; and the processor device is respectively connected with the video acquisition device and the wire rope winding and unwinding device.

Optionally, the cord reel comprises a motor and a cord drum, wherein the cord drum is connected with an output shaft of the motor; and the first end of the cord is fixed on the bobbin.

Optionally, the processor device comprises a processor and a wireless transmission unit connected with the processor, wherein the processor is connected with the video capture device and the motor respectively.

Optionally, the flow rate monitoring device further comprises a wind sensor connected to the processor.

Optionally, the flow rate monitoring device further comprises a fixed base, wherein the motor is arranged at a predetermined height above the fixed base through a support, and the video acquisition device and the scale plate are arranged on the fixed base.

Optionally, the fixing base is provided with a groove for the cord to pass through at a position corresponding to the cord.

Optionally, the base is further provided with a screw hole for fixing.

The utility model has the beneficial effects that: the embodiment calculates the flow velocity of the river through a processor device, a thread rope winding and unwinding device, a thread rope, a counterweight, a scale plate and a video acquisition device in the flow velocity monitoring equipment, does not need to adopt flow measuring technologies such as ultrasonic waves, electromagnetism and Venturi, is less influenced by the quality of river water and a river channel, and can accurately measure the flow velocity of the river. And the whole overall arrangement of velocity of flow monitoring facilities in this embodiment is compact, simple structure to only contact with river course and channel surface of water when measuring, reduced the damage risk, improved the rate of utilization. In addition, the video acquisition device can indirectly calculate the flow by acquiring images of the thread rope and the scale plate as monitoring images, visually reflect the flow velocity of the river, do not need to depend on a complex algorithm based on a neural network, and reduce the complexity. And the flow rate monitoring equipment has perfect functions, exquisite design and long service life, and is easy to popularize and use in a large scale. The technical problems that the existing flow velocity monitoring equipment in the prior art is easily influenced by external factors and has high complexity in the process of measuring the flow velocity are further solved.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic top view of a flow rate monitoring device according to an embodiment of the present application;

fig. 2 is a schematic structural view of a wire takeup and release device according to an embodiment of the present application;

fig. 3A is a schematic view of a string and a scale plate when a counterweight has not reached the surface according to an embodiment of the application;

FIG. 3B is a schematic view of a string and a dial plate as a counterweight according to an embodiment of the present application is lowered to a river surface;

FIG. 3C is yet another schematic view of the line and scale plate as the counterweight according to an embodiment of the present application is lowered to the river surface;

FIG. 3D is yet another schematic illustration of a string and scale plate as a counterweight according to an embodiment of the present application is lowered to a river surface; and

FIG. 4 is a block diagram of a flow rate monitoring device according to an embodiment of the present application.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances for describing embodiments of the utility model herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Fig. 1 schematically illustrates a schematic top view of a flow rate monitoring device according to an embodiment of the present application. Fig. 2 is a schematic structural view of a wire takeup and release device according to an embodiment of the present application. Referring to fig. 1 and 2, there is provided a flow rate monitoring device 100 based on video capture, including: the device comprises a processor device 110, a wire winding and unwinding device 120, a wire 131, a counterweight 132, a scale plate 140 and a video acquisition device 150, wherein a first end of the wire 131 is connected with the wire winding and unwinding device 120, and a second end is connected with the counterweight 132; the scale plate 140 is disposed at a predetermined position lower than the wire takeup and payoff device 120 in height, and the position of the scale plate 140 corresponds to the position of the wire 131 when the wire takeup and payoff device 120 releases the wire 131; the video acquisition device 150 is arranged towards the scale plate 140 and is used for acquiring a video image of the scale plate 140; and the processor means 110 are connected to the video capturing means 150 and the cord reel 120, respectively.

Specifically, after the flow rate monitoring apparatus 100 is installed at a position on a river or a channel, an external power source may be introduced to start operation. One end of the wire 131 of the flow rate monitoring apparatus 100 is connected to the wire takeup device 120, and the processor device 110 controls the rotation of the wire takeup device 120 to control the lowering or the winding of the wire 131. For example, the wire takeup device 120 is rotated to release the wire 131, so that the lowering length of the wire 131 becomes long. Or the wire takeup and release device 120 is rotated to take up the wire 131, so that the lowering length of the wire 131 is shortened. And the other end of the string 131 is connected to the weight 132 so that the string 131 can be maintained to fall in a vertical direction.

Further, the scale plate 140 is disposed at a predetermined position having a height lower than the wire takeup device 120, and in a case where the wire takeup device 120 releases the wire 131, the position of the scale plate 140 corresponds to the position of the wire 131. Thus, the scale plate 140 may measure the current position of the wire 131 through the scale drawn thereon. Fig. 3A is a schematic diagram illustrating the wire 131 and the scale plate 140 when the counterweight 132 according to the embodiment of the present application has not reached the water surface. Referring to fig. 3A, when the wire reel 120 releases the wire 131 but the weight 132 connected to an end of the wire 131 near the water surface does not reach the water surface, the wire 131 is maintained perpendicular to the water surface and thus is located at a middle position of the scale plate 140. Fig. 3B, 3C and 3D are schematic views of the string 131 and the scale plate 140, respectively, at different times when the counterweight 132 falls to the river surface and flows with the river. Referring to fig. 3B to 3D, when the counterweight 132 falls into a river, the string 131 is shifted according to the flowing direction of the river, and thus may be located at different positions and scales on the scale plate 140. And the scale plate 140 of the flow rate monitoring device 100 is disposed between the wire 131 and the video capturing device 150, the processor device 110 controls the video capturing device 150 to capture images of the scale plate 140 and the wire 131, so as to obtain the position and scale of the wire 131 on the scale plate 140.

Therefore, the video collecting device 150 collects an image of the scales of the wire 131 measured by the scale plate 140 before the counterweight 132 enters water, then collects an image of the scales of the wire 131 measured by the scale plate 140 when the counterweight 132 enters water, the processor device 110 records time and starts timing until the counterweight 132 moves along with the river, the wire 131 shifts along with the counterweight 132 at the same time, and when the wire 131 reaches the preset scales on the scale plate 140, the processor device 110 finishes timing and calculates time difference, so that the water flow rate is calculated. In addition, the processor device 110 can also calculate the data such as instantaneous flow and accumulated flow according to the size of the river channel and the channel.

As described in the background, flow measurement has long been a concern, particularly with respect to watercourses, rivers, and canals. With the stricter and stricter national water resource management, the flow measurement technologies such as ultrasonic waves, electromagnetism and Venturi are adopted for measuring the flow of rivers, rivers and channels in China, but the method is greatly influenced by the quality of river water and the channels of the rivers. In addition, the existing flow rate monitoring equipment firstly acquires an image of the river and then calculates the flow rate of the river through a calculation model based on a neural network. Such an approach has the following problems: the collected images of the river cannot visually reflect the flow velocity of the river and can be realized only by a complex algorithm based on a neural network.

For the problems in the prior art, referring to fig. 1 and 2, in the embodiment, the processor device 110, the wire winding and unwinding device 120, the wire 131, the counterweight 132, the scale plate 140 and the video acquisition device 150 in the flow rate monitoring device 100 are used to calculate the flow rate of the river, and flow measurement technologies such as ultrasonic, electromagnetic and venturi are not needed, so that the influence of the river quality and the channel of the river is small, and the flow rate of the river can be accurately measured. And the whole overall arrangement of velocity of flow monitoring equipment 100 in this embodiment is compact, simple structure to only contact with river course and channel surface of water when measuring, reduced the damage risk, improved the rate of utilization. In addition, the video acquisition device 150 can indirectly calculate the flow rate by acquiring the images of the string 131 and the scale plate 140 as monitoring images, so that the flow rate of the river can be intuitively reflected, a complex algorithm based on a neural network is not required, and the complexity is reduced. And the flow velocity monitoring equipment 100 has perfect functions, exquisite design and long service life, and is easy to popularize and use in a large scale. The technical problems that the existing flow velocity monitoring equipment in the prior art is easily influenced by external factors and has high complexity in the process of measuring the flow velocity are further solved.

Optionally, the wire takeup device 120 includes a motor 121 and a wire drum 122, wherein the wire drum 122 is connected to an output shaft of the motor 121; and a first end of the cord 131 is secured to the spool 122.

Specifically, as shown in fig. 1, when the motor of the cord winding and unwinding device 120 is started, the cord reel 122 connected to the output shaft of the motor 121 is rotated, and the cord 131 wound around the cord reel 122 is wound or unwound along with the cord reel 122. Therefore, the length of the wire rope 131 which is retracted or released can be conveniently adjusted through the wire connecting cylinder 122 by the technical scheme.

Alternatively, referring to fig. 4, the processor device 110 includes a processor 111 and a wireless transmission unit 112 connected to the processor 111, wherein the processor 111 is connected to the video capture device 150 and the motor 121 respectively. So that the processor means 110 can control the video capture means 150 and the motor 121 via the processor 111.

Optionally, flow monitoring device 100 further comprises a wind sensor 160 coupled to processor 111. Specifically, in measuring the flow velocity, factors of the wind power should also be considered. Therefore, the flow rate monitoring device 100 measures the wind speed in real time through the wind sensor 160, and the wind speed needs to be subtracted when calculating the flow rate to obtain the water flow speed of the river or channel. Therefore, the flow velocity can be measured in multiple aspects, and the accuracy of the flow velocity measurement is improved.

Alternatively, referring to fig. 2, the flow rate monitoring apparatus 100 further includes a stationary base 170, wherein the motor 121 is disposed at a predetermined height above the stationary base 170 through the support 123, and the video capture device 150 and the scale plate 140 are disposed on the stationary base 170. Therefore, the parts needing to be fixed in the flow rate monitoring equipment 100 are fixed through the fixing base 170, and the stability is improved.

Alternatively, as shown in fig. 1, the fixing base 170 is provided with a groove 171 through which the string 131 passes at a position corresponding to the string 131. Therefore, in the present embodiment, when the counterweight 132 connected to one end of the wire 131 falls, the wire 131 may pass through the slot 171, and the long slot 171 does not affect the deflection of the wire 131.

Optionally, as shown in fig. 1, the base 170 is further provided with screw holes 172 for fixing. Therefore, the base 170 can be conveniently fixed through the screw holes 172 in the technical scheme.

In summary, in the embodiment, the processor device 110, the wire winding and unwinding device 120, the wire 131, the counterweight 132, the scale plate 140 and the video acquisition device 150 in the flow rate monitoring device 100 are used for calculating the flow rate of the river, and flow measurement technologies such as ultrasonic waves, electromagnetism and venturi are not needed, so that the influence of the river water quality and the river channel is small, and the flow rate of the river can be accurately measured. And the whole overall arrangement of velocity of flow monitoring equipment 100 in this embodiment is compact, simple structure to only contact with river course and channel surface of water when measuring, reduced the damage risk, improved the rate of utilization. In addition, the video acquisition device 150 can indirectly calculate the flow rate by acquiring the images of the string 131 and the scale plate 140 as monitoring images, so that the flow rate of the river can be intuitively reflected, a complex algorithm based on a neural network is not required, and the complexity is reduced. And the flow velocity monitoring equipment 100 has perfect functions, exquisite design and long service life, and is easy to popularize and use in a large scale. The technical problems that the existing flow velocity monitoring equipment in the prior art is easily influenced by external factors and has high complexity in the process of measuring the flow velocity are further solved.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (7)

1. A flow rate monitoring device (100) based on video acquisition, comprising: a processor device (110), a wire winding and unwinding device (120), a wire (131), a counterweight (132), a scale plate (140) and a video acquisition device (150), wherein

The first end of the wire (131) is connected with the wire coiling and uncoiling device (120), and the second end of the wire is connected with the counterweight (132);

the scale plate (140) is disposed at a predetermined position having a height lower than that of the wire takeup and payoff device (120), and the position of the scale plate (140) corresponds to the position of the wire (131) in a case where the wire takeup and payoff device (120) releases the wire (131);

the video acquisition device (150) is arranged towards the scale plate (140) and is used for acquiring a video image of the scale plate (140); and

the processor device (110) is respectively connected with the video acquisition device (150) and the wire winding and unwinding device (120).

2. The flow rate monitoring device (100) according to claim 1, wherein the cord reel (120) comprises a motor (121) and a spool (122), wherein

The bobbin (122) is connected with an output shaft of the motor (121); and

the first end of the wire rope (131) is fixed on the wire drum (122).

3. The flow rate monitoring device (100) according to claim 2, wherein the processor means (110) comprises a processor (111) and a wireless transmission unit (112) connected to the processor (111), wherein the processor (111) is connected to the video capturing means (150) and the motor (121), respectively.

4. The flow rate monitoring device (100) according to claim 3, further comprising a wind sensor (160) connected to the processor (111).

5. The flow rate monitoring apparatus (100) according to claim 4, further comprising a stationary base (170), wherein the motor (121) is disposed at a predetermined height above the stationary base (170) via a support (123), and wherein the video capture device (150) and the dial plate (140) are disposed on the stationary base (170).

6. The flow rate monitoring device (100) according to claim 5, wherein the securing base (170) is provided with a slot (171) through which the wire (131) passes at a position corresponding to the wire (131).

7. The flow rate monitoring device (100) according to claim 5, wherein the base (170) is further provided with screw holes (172) for fixation.

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