TW202100950A - Fluid monitoring system and method in which light is supplied to a tubular body from which a fluid is retrieved by an image detection device to form a dynamic image that is converted into a characteristic image for generating fluid data - Google Patents

Abstract

The present invention mainly provides a fluid monitoring system, which mainly includes a light source supplying device supplying a light source to a tubular body and an image detection device retrieving a fluid in the tubular body to generate a dynamic image. The image detection device then transmits the dynamic image to a processing element, so as to be converted into a characteristic image by the processing element. Then, a fluid data is generated according to the characteristic image. As such, a receiver end or other related electronic devices may be used to display the fluid data to allow a user to determine the flow speed and flow rate of the fluid.

Description

Fluid monitoring system and method

The present invention relates to a technology for monitoring fluid, in particular to a fluid monitoring system and method for monitoring fluid flow and velocity through automatic optical detection technology.

The fluid flow meter used in traditional households or businesses usually includes some mechanical devices, such as bellows or blades or impellers used to activate statistical devices. Generally speaking, mechanical scale devices are used to indicate the total amount of fluid passing through the meter. These mechanical devices are not highly accurate, especially at low flow rates, such as those that need to maintain indicator lights.

In addition, when the user performs lubrication on the processing machinery, usually due to the small lubrication hole or other related factors, the fluid flow meter of the prior art cannot effectively measure the flow rate or velocity of the fluid, which leads to the processing machinery. It may be damaged due to insufficient lubrication, or waste due to excessive lubricant addition.

Therefore, how to accurately and effectively measure the fluid in the tube to control the flow and velocity of the fluid is a problem that must be overcome today.

In order to solve the aforementioned problems, one of the objectives of the present invention is to provide a fluid monitoring system that uses automatic optical inspection technology to provide an image detection device to capture dynamic images of the fluid, and then use a processing element based on the dynamic image The characteristic value of, generates a fluid data to provide the user or processing element to determine the flow rate and flow of the fluid.

To achieve the above objective, the present invention provides a fluid monitoring system, which includes: A light source providing device arranged on the periphery of a tube body, the light source providing device provides a light source to illuminate the tube body and reflect a reflected light; An image detection device, which is arranged on the periphery of the tube to capture dynamic images of the fluid in the tube; A processing element that receives the dynamic image, converts the dynamic image into a characteristic image according to the characteristic value of the dynamic image, and then generates a fluid data according to the characteristic image; Among them, the dynamic image contains a plurality of feature points.

Preferably, the fluid monitoring system of the present invention further includes: A light source correction element is arranged between the tube body and the image detection device. The light source correction element is used to change the optical path of the reflected light so that the reflected light enters the image detection device in a positive direction.

Preferably, the fluid monitoring system of the present invention further includes: A compensation light source device, which is arranged on the periphery of the tube body and has a distance from the light source providing device. The compensation light source device provides a compensation light irradiating the tube body, wherein the position of the compensation light irradiating the tube body is different from the light source irradiation The position of the tube.

Preferably, the fluid monitoring system of the present invention further includes: A receiving end, which receives fluid data to display the fluid data to the outside.

Preferably, the characteristic value is a grayscale value.

Preferably, the characteristic point is one or a combination of the wave pattern of the fluid and the bubble.

Preferably, the processing element calculates the flow or velocity of the fluid based on one of the area value of the wave pattern and the displacement vector value of the bubble or a combination of the two, wherein the flow or velocity is one of the fluid data.

In order to solve the aforementioned problems, another object of the present invention is to provide a fluid monitoring method that uses an optical method to provide an image detection device to obtain a dynamic image of a fluid, and then use a processing element based on the characteristics of the dynamic image The value generates a fluid data to provide the user to judge the flow rate and flow rate of the fluid.

In order to achieve the above-mentioned other objective, the present invention provides a fluid monitoring method, which utilizes the above-mentioned fluid monitoring system to provide a fluid data. The method includes: Utilizing a light source providing device to provide a light source to illuminate the tube body and generate a reflected light; Use an image detection device to photograph a fluid in the tube, generate a dynamic image, and transmit the dynamic image to a processing element; Use processing elements to convert dynamic images into feature images based on feature values; Use processing elements to generate fluid data based on characteristic images; Among them, the dynamic image contains a plurality of feature points.

Preferably, when the light source providing device provides a light source to illuminate the tube body, a light source correction element changes the optical path of the reflected light so that the reflected light enters the image detection device in a positive direction.

Preferably, when the light source providing device provides a light source and irradiates the tube body, another compensation light source device also provides a compensation light to irradiate the tube body, and the position where the compensation light irradiates the tube body is different from the position where the light source irradiates the tube body .

Preferably, the fluid monitoring method of the present invention further includes: using a receiving end to receive fluid data to display the fluid data to the outside.

Preferably, the characteristic value is a grayscale value.

Preferably, the characteristic point is one or a combination of the wave pattern of the fluid and the bubble.

Preferably, the method of the present invention further includes using the processing element to generate fluid data based on one of the wave pattern area value, the bubble displacement vector value, or a combination of both.

Specific embodiments are described below to illustrate the implementation of the present invention, but they are not used to limit the scope of the present invention.

Please refer to FIG. 1, which is a schematic diagram of the system layout of the present invention. The present invention is mainly composed of a light source providing device 10, an image detecting device 20, and a processing element 30. The light source providing device 10 is arranged on the periphery of the tube body 40 to provide a light source L to illuminate the tube body 40. The body 40 is a transparent tube body, so when the light source L illuminates the tube body 40, the light source L will further transmit to the fluid 41 in the tube body 40.

Please refer to FIG. 1 and FIG. 2, which are a schematic diagram of the system layout of the present invention and a dynamic image photo of an embodiment. The image detection device 20 is arranged on the periphery of the tube body 40 and captures the fluid 41 flowing in the tube body 40 and captures the dynamic image 22 of the fluid 41, as shown in FIG. 2. Furthermore, when the light source providing device 10 provides the light source L to the fluid 41, the fluid 41 reflects the light source L to form the reflected light RL, and the image detecting device 20 receives the reflected light RL, so that the image is detected The device 20 can capture a dynamic image 22 with high resolution and high contrast.

Please refer to FIG. 3, which is a schematic diagram of the image edge detection of the present invention. After the image detection device 20 transmits the dynamic image 22 to the processing element 30, the processing element 30 performs an image edge detection process on the dynamic image 22 and analyzes the actual edges E on both sides of the tube body 40.

Please refer to FIG. 4, which is a feature image photo of an embodiment of the present invention. The image edge detection program analyzes the feature value of the dynamic image 22 and forms the feature data 21 by analog-digital conversion, and then the dynamic image 22 is binarized to generate the feature image 23. In the embodiment of the present invention, the feature point FP is the bubble in the tube 40, and the feature value is the grayscale value of the dynamic image 22, and the processing element 30 is used to binarize the dynamic image 22 according to the feature value.

Please refer to FIG. 5, which is a graph of the difference in grayscale values of the dynamic image of the present invention. To further illustrate, the processing element 30 of the present invention performs a process of binarizing the dynamic image 22 according to the feature value. When the fluid 41 stops flowing or the tube 40 does not yet have the fluid 41 flowing, the image detection device 20 can first capture the dynamic image 22 of the tube 40, and the processing element 30 uses the dynamic image 22 at this time as the reference grayscale value. Thereafter, when the fluid 41 flows, if the dynamic image 22 has a high grayscale value higher than the reference grayscale value, or a low grayscale value lower than the reference grayscale value At the point of time, the processing element 30 converts the high grayscale value points into white, and converts the low grayscale value points into black, and generates a binarized feature image 23.

Please refer to FIG. 4 again, which is a feature image photo of an embodiment of the present invention, and the feature point FP is a bubble in the tube 40. In the embodiment of the present invention, the processing element 30 binarizes the dynamic image 22 so that the bubble as the feature point FP can be more easily recognized in the feature image 23.

Please refer to FIG. 6, which is a schematic diagram of the fluid characteristic points of the present invention. The processing element 30 can calculate the flow velocity and flow rate of the fluid 41 to generate the fluid data 31 according to the state change of the feature point FP in the tube body 40. For example, the flow rate can usually be calculated by the following formula: Velocity (V) = Displacement (S) ÷ Time (T)

Among them, the displacement (S) is any feature point FP, the distance moved in the process from the first frame to the second frame in the feature image 23, and the time (T) refers to the first frame and the second frame The interval time, in this way, the flow rate of the fluid 41 can be calculated. After that, based on the obtained flow rate, the actual flow rate (Q) is derived from the following formula: Flow rate (Q) = Velocity (V) × Tube cross-sectional area (A)

In this way, the processing element 30 can calculate the flow velocity and flow rate of the fluid 41 according to the state change of the feature point FP in the pipe body 40 to generate the fluid data 31.

In another embodiment of the present invention, the characteristic point FP is the wave pattern of the fluid 41. When the fluid 41 stops flowing, because the plane of the fluid 41 is in a static state, neither the dynamic image 22 nor the characteristic image 23 has any waves. It is judged that the fluid 41 is in a state of stopping flow; and when the fluid 41 is flowing, a plurality of wave patterns will be generated on the plane of the fluid 41. When the flow rate is faster, the area of the wave pattern of the fluid will usually be larger, and if the flow rate is higher When it is slow, the area of the wave pattern will be smaller. In this way, the processing element 30 can calculate the area of the wave pattern in the characteristic image 23 to obtain the flow rate of the fluid to generate the fluid data 31.

In addition, the processing element 30 can also use bubbles and wave lines as characteristic points at the same time, and is not limited to one of the above methods.

The system of the present invention further includes a receiving end 50 connected to the processing element 30. When the receiving end 50 receives the fluid data 31 from the processing element 30, the fluid data 31 can be displayed to provide the user with information What is the flow rate and flow rate data of fluid 41?

The present invention is further provided with a light source correction element 60, which is arranged between the tube body 40 and the image detection device 20. Since the light source L usually irradiates the tube body 40 at an oblique angle, when the fluid 41 reflects the light source L, It cannot be reflected vertically to the image detection device 20 in a straight direction. Therefore, when the dynamic image 22 acquired by the image detection device 20, an image deviation may occur. Therefore, when the fluid 41 in the tube 40 reflects the light source L When the light source correction element 60 changes the optical path of the reflected light RL, the reflected light RL advances in the positive direction PD, and guides the reflected light RL to the position of the image detection device 20, so that the image detection device 20 is It can image an unbiased dynamic image 22.

Please refer to FIG. 7, which is a schematic diagram of the system layout of another embodiment of the present invention. As shown in the figure, the present invention is further provided with a compensation light source device 70, which is arranged on the periphery of the tube body 40 and has a distance from the light source providing device 20. The compensation light source device 70 provides compensation light CL to irradiate the tube body 40. To compensate for the lack of light source L. Wherein, the position where the compensation light CL irradiates the tube body 40 is different from the position where the light source L irradiates the tube body 40. In this way, the compensation light CL and the light source L can illuminate the tube body 40 in a surrounding form to provide sufficient light. Brightness to effectively perform subsequent imaging or analysis actions.

Please refer to FIG. 8, which is a flowchart of the steps of the fluid monitoring method of the present invention. As shown in the figure, according to the technical content disclosed in Figures 1 to 7, the fluid monitoring system of the present invention can operate according to the following fluid monitoring methods to provide fluid data: Step 101: Utilize a light source providing device to provide a light source to illuminate the tube body and generate reflected light; Step 102: Use the image detection device to capture the fluid in the tube and generate a dynamic image, where the dynamic image includes a plurality of feature points; Step 103: Transmit the dynamic image captured by the image detection device to the processing element; Step 104: Use the processing element to convert the dynamic image into a characteristic image according to the characteristic value; Step 105: Use the processing element to generate fluid data based on the characteristic image.

Wherein, when the light source providing device provides a light source to illuminate the tube body, the following steps may be further performed: Step 106: Use the light source correction element to change the optical path of the reflected light so that the reflected light enters the image detection device in a positive direction; Step 107: Utilize the compensation light source device to provide compensation light to irradiate the tube body, and the position where the compensation light irradiates the tube body is different from the position where the light source irradiates the tube body.

After the processing element generates fluid data, the following steps can be performed: Step 108: Use a receiving terminal to receive the fluid data and display the fluid data to the outside.

In this way, the fluid data can be displayed through the receiving end to provide the user with a judgment of the flow rate and flow rate of the fluid.

The above detailed description is a specific description of a feasible embodiment of the present invention, but the embodiments are not intended to limit the scope of the patent of the present invention. Any equivalent implementation or change without departing from the technical spirit of the present invention shall be included in In the scope of the patent in this case.

10: Light source supply device 20: Image detection device 21: Characteristic data 22: Motion Picture 23: Feature image 30: processing components 31: Fluid Information 40: tube body 41: Fluid 50: receiving end 60: light source correction component 70: Compensation light source device E: Edge L: light source CL: Compensation light FP: Feature points RL: reflected light PD: positive direction S101-S108: steps

Figure 1 is a schematic diagram of the system layout of the present invention; Figure 2 is a dynamic image photo of an embodiment of the present invention; Figure 3 is a schematic diagram of image edge detection of the present invention; Figure 4 is a feature image photo of an embodiment of the present invention; FIG. 5 is a diagram showing the difference of gray scale values of the dynamic image of the present invention; Figure 6 is a schematic diagram of the fluid feature points of the present invention; Figure 7 is a schematic diagram of the system layout of another embodiment of the present invention; Figure 8 is a flow chart of the steps of the fluid monitoring method of the present invention.

10: Light source supply device

20: Image detection device

21: Characteristic data

22: Motion Picture

23: Feature image

31: Fluid Information

40: tube body

41: Fluid

50: receiving end

60: light source correction component

L: light source

RL: reflected light

PD: positive direction

Claims (10)

A fluid monitoring system includes: A light source providing device arranged on the periphery of a tube body, the light source providing device providing a light source to illuminate the tube body and reflecting a reflected light; An image detection device arranged on the periphery of the tube to capture a dynamic image of a fluid in the tube; and A processing element that receives the dynamic image, converts the dynamic image into a characteristic image according to the characteristic value of the dynamic image, and generates a fluid data according to the characteristic image; Wherein, the dynamic image contains a plurality of feature points. The fluid monitoring system described in item 1 of the scope of patent application further includes: A light source correction element is arranged between the tube body and the image detection device. The light source correction element changes the optical path of the reflected light so that the reflected light enters the image detection device in a positive direction. The fluid monitoring system described in item 1 of the scope of patent application, wherein the characteristic value is a gray scale value. According to the fluid monitoring system described in item 1 of the scope of patent application, the characteristic point is one or a combination of the wave pattern and bubbles of the fluid. According to the fluid monitoring system described in item 4 of the patent application, the processing element generates the fluid data according to one of the area value of the wave pattern, the displacement vector value of the bubble, or a combination of two or more. A fluid monitoring method, using the fluid monitoring system as described in item 1 of the scope of patent application to provide fluid data, the fluid monitoring method includes: Utilizing a light source providing device to provide a light source to illuminate a tube body and generate a reflected light; Use an image detection device to capture a dynamic image of a fluid in the tube, and transmit the dynamic image to a processing element; Use the processing element to convert the dynamic image into a characteristic image according to the characteristic value, and then generate the fluid data according to the characteristic image; Wherein, the dynamic image contains a plurality of feature points. The fluid monitoring method described in item 6 of the scope of patent application, wherein when the light source is provided by the light source providing device to illuminate the tube body, a light source correction element changes the light path of the reflected light so that the reflected light enters the tube in a positive direction Image detection device. The fluid monitoring method described in item 6 of the scope of patent application, wherein the characteristic value is a gray-scale value. The fluid monitoring method described in item 6 of the scope of patent application, wherein the characteristic point is one or a combination of the wave pattern and bubbles of the fluid. According to the fluid monitoring method described in item 9 of the scope of patent application, the method further includes using the processing element to generate the fluid according to one of the area value of the wave pattern, the displacement vector value of the bubble, or a combination of both data.

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