System for online monitoring motion properties of solids in water based on image recognition

Abstract

The invention provides a system for on-line monitoring of motion properties of solids in water based on image recognition, the system comprises a sample collection channel, a cleaning channel, a distribution and circulation channel, a motion module, a buffer area, a pixel signal collection module and a pixel signal processing module, the sample collection channel is used for collecting to-be-detected solids; the cleaning passage is connected with the sample collection passage; the distribution and circulation passage is connected with the cleaning passage; the motion module is connected with the distribution and circulation path; the buffer area is connected with the motion module; the pixel signal acquisition module is connected with the motion module; and the pixel signal processing module is connected with the pixel signal acquisition module. Therefore, the time domain pixel image in the time domain motion state is collected in the system for online monitoring the motion property of the solid matter in water based on image recognition, the particle size distribution and sedimentation rate distribution of the solid matter are accurately determined, online monitoring of the motion property of the solid matter in water is achieved, and errors and workload of manual detection are reduced.

Description

Technical Field

[0001] The present application relates to the field of water treatment technology, and in particular to a system for online monitoring of the movement properties of solids in water based on image recognition. Background Art

[0002] Solids in water are an important component in the water treatment process, and they are also a type of pollutant component that needs to be removed. At present, the method of monitoring the state of solids in sewage treatment in engineering is mostly visual inspection. Obviously, this method is subject to errors that vary from observer to observer, making it difficult to improve the management level of sewage treatment facilities. Observation instruments commonly used in scientific research, such as high-throughput sequencing, genomics, metabolomics and other methods, can determine the properties of solids in water; or use Malvern laser particle size analyzer to determine the particle size distribution of suspended matter (solids). However, these methods have the problems of hysteresis, complex data analysis, and inability to monitor online, and are not suitable for on-site engineering applications. Therefore, there is an urgent need for a more intelligent system based on image recognition to monitor the movement properties of solids in water online. Summary of the invention

[0003] The embodiment of the present application proposes a system for online monitoring of the motion properties of solids in water based on image recognition, wherein the system for online monitoring of the motion properties of solids in water based on image recognition comprises a sample collection path, a cleaning path, a distribution and circulation path, a motion module, a buffer zone, a pixel signal collection module, and a pixel signal processing module, wherein:

[0004] The sample collection passage is used to collect the solid matter to be tested;

[0005] The cleaning passage is connected to the sample collection passage and is used to clean the solid to be tested for impurities to obtain a test solid without impurities;

[0006] The distribution and circulation passage is connected to the cleaning passage, and is used to distribute the test solid into the water;

[0007] The motion module is connected to the distribution and circulation path and is used to regulate the motion state of the solid matter in water to obtain a preset motion state of the solid matter;

[0008] The buffer zone is connected to the motion module and is used to stabilize the water flow when the solid object reaches the motion state;

[0009] The pixel signal acquisition module is connected to the motion module and is used to acquire a time-domain pixel image of the motion state of the solid object;

[0010] The pixel signal processing module is connected to the pixel signal acquisition module and is used to analyze the time domain pixel image to obtain the particle size distribution and sedimentation rate distribution of the solid matter.

[0011] In one embodiment of the present application, the system for online monitoring of the movement properties of solids in water based on image recognition further includes an in-situ cleaning module, wherein:

[0012] The in-situ cleaning module is connected to the pixel signal acquisition module and is used for cleaning the pixel signal acquisition module.

[0013] In one embodiment of the present application, the system for online monitoring of the movement properties of solid matter in water based on image recognition further includes a complementary color coating, wherein:

[0014] The complementary color coating is arranged on the surface of the motion module, and is used to supplement the solid background color for the time domain pixel image.

[0015] In one embodiment of the present application, the system for online monitoring of the motion properties of solid matter in water based on image recognition further includes a fill light system, wherein:

[0016] The fill light system is connected to the distribution and circulation path, and is used to supplement the solid background brightness for the time domain pixel image.

[0017] In one embodiment of the present application, the system for online monitoring of the movement properties of solid matter in water based on image recognition further includes a discharge passage, wherein:

[0018] The discharge passage is connected to the buffer zone and is used for discharging the test solids and water.

[0019] In one embodiment of the present application, the sample collection passage and the cleaning passage are both equipped with a non-return component with a one-way isolation function.

[0020] In one embodiment of the present application, the distribution and circulation passage has a distribution system with at least 3 outlets capable of adjusting water flow.

[0021] In one embodiment of the present application, the motion module and the buffer zone are interconnected and have at least three independent passages.

[0022] In one embodiment of the present application, the fill light system is an adjustable light source with a shadowless function.

[0023] The present application proposes a system for online monitoring of the motion properties of solids in water based on image recognition, the system includes a sample collection path, a cleaning path, a distribution and circulation path, a motion module, a buffer zone, a pixel signal collection module and a pixel signal processing module, wherein: the sample collection path is used to collect the solids to be tested; the cleaning path is connected to the sample collection path; the distribution and circulation path is connected to the cleaning path; the motion module is connected to the distribution and circulation path; the buffer zone is connected to the motion module; the pixel signal collection module is connected to the motion module; the pixel signal processing module is connected to the pixel signal collection module. Thus, the system for online monitoring of the motion properties of solids in water based on image recognition collects time domain pixel images under the time domain motion state, accurately determines the particle size distribution and sedimentation rate distribution of the solids, realizes online monitoring of the motion properties of solids in water, and reduces the error and workload of manual detection.

[0024] Other effects of the above optional manner will be described below in conjunction with specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a system for online monitoring of the movement properties of solid matter in water based on image recognition according to an embodiment of the present application. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0027] The following describes a system for online monitoring of the movement properties of solid matter in water based on image recognition according to an embodiment of the present application with reference to the accompanying drawings.

[0028] Figure 1 It is a structural schematic diagram of a system for online monitoring of the movement properties of solid matter in water based on image recognition according to an embodiment of the present application.

[0029] like Figure 1 As shown, the system for online monitoring of the motion properties of solids in water based on image recognition includes a sample collection path 11, a cleaning path 12, a distribution and circulation path 13, a motion module 14, a buffer 15, a pixel signal collection module 16 and a pixel signal processing module 17, wherein:

[0030] In some embodiments, the sample collection passage 11 is used to collect solid matter to be tested.

[0031] Optionally, the solids to be tested may be anaerobic sludge, aerobic sludge, wine lees, inorganic particulate matter and other solids in water, but are not limited thereto and are not specifically limited in this embodiment.

[0032] Specifically, the system for online monitoring of the movement properties of solids in water based on image recognition can be applied to anaerobic sludge, aerobic sludge and granular sludge with solid concentrations of 200mg / L to 100g / L, including granular sludge in mesophilic anaerobic digestion reactors, mesophilic aerobic granular sludge, traditional activated aerobic sludge, anaerobic ammonium oxidation granular sludge, etc.

[0033] In some embodiments, the cleaning passage 12 is connected to the sample collection passage 11 and is used to clean the solid to be tested from impurities to obtain a test solid without impurities.

[0034] Optionally, the impurities may include but are not limited to stones and straws, which are not specifically limited in this embodiment.

[0035] Optionally, both the sample collection passage 11 and the cleaning passage 12 are equipped with a check valve with a one-way isolation function, and the leakage amount thereof is less than 5%. For example, a lifting check valve or a Tesla valve may be used.

[0036] In some embodiments, the dispensing and circulation passage 13 is connected to the cleaning passage 12 for dispensing the test solids into the water.

[0037] Optionally, the distribution and circulation path 13 distributes the solids into the water naturally to simulate the state of the solids in the water.

[0038] Optionally, the distribution and circulation passage 13 has a distribution system with at least three outlets capable of adjusting water flow, wherein the flow adjustment range of each outlet can be 0-100%, and the control accuracy should be less than 0.8%.

[0039] In some embodiments, the motion module 14 is connected to the distribution and circulation passage 13 to adjust the motion state of the solid matter in the water to obtain a preset motion state of the solid matter.

[0040] Optionally, the preset solid object motion state may be various simulated working conditions of the solid object in water, so as to realize simulation testing of the solid object under all working conditions in water.

[0041] In some embodiments, the buffer zone 15 is connected to the motion module 14 to stabilize the water flow when the solid matter is in motion.

[0042] Optionally, the motion module 14 and the buffer zone 15 are interconnected and have at least three independent passages, and are connected to a sealed bearing corresponding to the system for online monitoring of the motion properties of solids in water based on image recognition, and the Reynolds number Re flowing therein is 2 to 2000. Specifically, each independent passage has a height-to-length ratio of 2 to 5, a length-to-width ratio of 10 to 20, and can achieve 360° rotation to simulate the motion state of solids in a water treatment reactor or facility.

[0043] In some embodiments, the pixel signal acquisition module 16 is connected to the motion module 14 to acquire a time-domain pixel image of the motion state of the solid object.

[0044] Optionally, the pixel signal acquisition module 16 may be a camera device, specifically, such as a high-definition camera, but not limited thereto.

[0045] It is understandable that, in order to better capture the time-domain pixel image of the motion state of the solid, the resolution of the pixel signal acquisition module 16 can be set to be greater than 1,000,000, and the number of acquisition frames can be greater than 10,000, but it is not limited thereto.

[0046] In some embodiments, the pixel signal processing module 17 is connected to the pixel signal acquisition module 16 for analyzing the time domain pixel image to obtain the particle size distribution and sedimentation rate distribution of the solid matter.

[0047] Optionally, the pixel signal processing module 17 can convert the time domain pixel image into a black and white image, and calculate the particle size distribution of the solids after processing the contour boundaries; based on the image contrast in the time domain, the Lagrangian method is used to calculate the sedimentation rate distribution of the solids, as well as the solid loss (removal amount) and precipitation amount under simulated working conditions (preset solid motion state).

[0048] In some embodiments, Figure 1 As shown, the system 10 for online monitoring of the movement properties of solids in water based on image recognition also includes an in-situ cleaning module 18 , wherein: the in-situ cleaning module 18 is connected to the pixel signal acquisition module 16 for cleaning the pixel signal acquisition module 16 .

[0049] Optionally, the in-situ cleaning module 18 can be cleaned with water to clean away stains on the pixel signal acquisition module 16 to ensure the reliability of the pixel signal acquisition module 16 .

[0050] In some embodiments, Figure 1 As shown, the system for online monitoring of the movement properties of solids in water based on image recognition also includes a complementary color coating 19, wherein: the complementary color coating 19 is arranged on the surface of the motion module 14, and is used to supplement the solid background color for the time domain pixel image.

[0051] In some embodiments, Figure 1 As shown, the system for online monitoring of the movement properties of solids in water based on image recognition also includes a fill light system 21, wherein: the fill light system 21 is connected to the distribution and circulation path 13, and is used to supplement the solid background brightness for the time domain pixel image.

[0052] Optionally, the color-complementary coating 19 and the light-complementary system 21 are auxiliary means for adjusting the color according to the type of solids being monitored, and the difference on the 360° color wheel is 100-140°. For example, the light source of the light-complementary system 21 for monitoring the properties of anaerobic ammonium oxidation particulate sludge can be FF6600, and the color-complementary coating 19 can be 00CC66.

[0053] The fill light system 21 is an adjustable light source with a shadowless function.

[0054] In some embodiments, Figure 1 As shown, the system for online monitoring of the movement properties of solids in water based on image recognition also includes a discharge passage 22, wherein the discharge passage 22 is connected to the buffer zone 15 for discharging the test solids and water.

[0055] Optionally, the test solids and water are discharged through the discharge passage 22, thereby ensuring the fluidity of the solids to be tested in the system for online monitoring of the movement properties of solids in water based on image recognition, and realizing online continuous monitoring of the movement properties of solids in water.

[0056] In addition, in order to better understand the present application, the system for online monitoring of the movement properties of solids in water based on image recognition in the present application is applied to the granular sludge of the medium-temperature anaerobic digestion reactor of chemical sewage as an example. Specifically, the system for online monitoring of the movement properties of solids in water based on image recognition can be installed in the sludge monitoring pipeline in the medium-temperature anaerobic digestion reactor of chemical sewage, and the anaerobic sludge samples at different heights in the anaerobic reactor can be sampled and analyzed online, so that the particle size distribution of the granular sludge in the anaerobic reactor can be obtained in real time. After 6 months of continuous monitoring, the monitoring system operates stably and normally. Furthermore, according to the continuous spectrum data, it is interlocked with the operating process parameters of the reactor to adjust the parameters such as the rising flow rate and sludge return ratio of the anaerobic reactor. Compared with the reactor without online monitoring, the present application improves the level of unmanned management; at the same time, the particle size of the granular sludge of the reactor is significantly higher than that of the reactor without online monitoring of the present application (complete sludge deflocculation).

[0057] Furthermore, the system for online monitoring of the movement properties of solids in water based on image recognition of the present application can also be used in the transformation of anaerobic ammonia oxidation reactors for treating chemical ammonia-containing wastewater, as well as coagulation and sedimentation systems after the effluent of moving bed membrane bioreactors.

[0058] The present application proposes a system for online monitoring of the motion properties of solids in water based on image recognition, the system includes a sample collection path, a cleaning path, a distribution and circulation path, a motion module, a buffer zone, a pixel signal collection module and a pixel signal processing module, wherein: the sample collection path is used to collect the solids to be tested; the cleaning path is connected to the sample collection path; the distribution and circulation path is connected to the cleaning path; the motion module is connected to the distribution and circulation path; the buffer zone is connected to the motion module; the pixel signal collection module is connected to the motion module; the pixel signal processing module is connected to the pixel signal collection module. Thus, the system for online monitoring of the motion properties of solids in water based on image recognition collects time domain pixel images under the time domain motion state, accurately determines the particle size distribution and sedimentation rate distribution of the solids, realizes online monitoring of the motion properties of solids in water, and reduces the error and workload of manual detection.

[0059] In addition, in the description of the present application, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0061] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A system for online monitoring of the motion properties of solid matter in water based on image recognition, characterized in that: The system for online monitoring of the motion properties of solids in water based on image recognition comprises a sample collection path, a cleaning path, a distribution and circulation path, a motion module, a buffer zone, a pixel signal collection module and a pixel signal processing module, wherein: The sample collection passage is used to collect the solid matter to be tested; The cleaning passage is connected to the sample collection passage and is used to clean the solid to be tested for impurities to obtain a test solid without impurities; The distribution and circulation passage is connected to the cleaning passage, and is used to distribute the test solid into the water; The motion module is connected to the distribution and circulation path and is used to regulate the motion state of the solid matter in water to obtain a preset motion state of the solid matter; The buffer zone is connected to the motion module and is used to stabilize the water flow when the solid object reaches the motion state; The pixel signal acquisition module is connected to the motion module and is used to acquire a time-domain pixel image of the motion state of the solid object; The pixel signal processing module is connected to the pixel signal acquisition module and is used to analyze the time domain pixel image to obtain the particle size distribution and sedimentation rate distribution of the solid matter.

2. The system for online monitoring of the motion properties of solid matter in water based on image recognition as claimed in claim 1, characterized in that: The system for online monitoring of the movement properties of solids in water based on image recognition also includes an in-situ cleaning module, wherein: The in-situ cleaning module is connected to the pixel signal acquisition module and is used for cleaning the pixel signal acquisition module.

3. The system for online monitoring of the motion properties of solid matter in water based on image recognition as claimed in claim 1, characterized in that: The system for online monitoring of the movement properties of solid matter in water based on image recognition also includes a complementary color coating, wherein: The complementary color coating is arranged on the surface of the motion module, and is used to supplement the solid background color for the time domain pixel image.

4. The system for online monitoring of the motion properties of solid matter in water based on image recognition as claimed in claim 1, characterized in that: The system for online monitoring of the motion properties of solid matter in water based on image recognition also includes a fill light system, wherein: The fill light system is connected to the distribution and circulation path, and is used to supplement the solid background brightness for the time domain pixel image.

5. The system for online monitoring of the motion properties of solid matter in water based on image recognition as claimed in claim 1, characterized in that: The system for online monitoring of the movement properties of solid matter in water based on image recognition also includes a discharge path, wherein: The discharge passage is connected to the buffer zone and is used for discharging the test solids and water.

6. The system for online monitoring of the motion properties of solid matter in water based on image recognition as claimed in claim 1, characterized in that: The sample collection passage and the cleaning passage are both equipped with non-return components with a one-way isolation function.

7. The system for online monitoring of the motion properties of solid matter in water based on image recognition as claimed in claim 1, characterized in that: The distribution and circulation passage has a distribution system with at least three outlets capable of adjusting water flow.

8. The system for online monitoring of the motion properties of solid matter in water based on image recognition as claimed in claim 1, characterized in that: The motion module and the buffer zone are interconnected and have at least three independent passages.

9. The system for online monitoring of the motion properties of solid matter in water based on image recognition as claimed in claim 1, characterized in that: The fill light system is an adjustable light source with a shadowless function.

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