CN113720667A

CN113720667A - Water sample treatment system and method for environmental monitoring

Info

Publication number: CN113720667A
Application number: CN202111025063.9A
Authority: CN
Inventors: 艾萍
Original assignee: Individual
Current assignee: Suzhou Huanbao Safety And Environmental Engineering Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2021-11-30
Anticipated expiration: 2041-09-02
Also published as: CN113720667B

Abstract

The invention provides a water sample processing system and method for environmental monitoring, which comprises the following steps: the inner side wall of the water collecting tank is provided with a liquid level sensor; three filters are arranged side by side; the image acquisition unit is arranged right above the three filters; the three enrichment units are respectively connected with the junction station so as to enrich the water sample filtered by the filter; the collecting boxes are respectively connected with the three enrichment units so as to collect the water samples output by the enrichment units; and the control unit is respectively and electrically connected with the image acquisition unit, the liquid level sensor, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve. The pretreatment process of the multi-water sample is controlled only by the arranged image acquisition unit and the control unit, so that the pretreatment operation of the water sample can be completed without human intervention, manpower is saved, the increase of the treatment time caused by the human intervention is avoided, the time is greatly saved, and the working efficiency is improved.

Description

Water sample treatment system and method for environmental monitoring

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a water sample treatment system and method for environmental monitoring.

Background

At present, trace organic pollutants in environmental water, especially polycyclic aromatic hydrocarbons, polychlorinated biphenyls, organochlorine pesticides and the like are very low in absolute content, but due to the characteristics of durability, biological enrichment and long-distance transmission, people pay attention to the organic pollutants.

Generally, the time consumption of the sample pretreatment process accounts for more than 60% of the whole analysis process, and the sample pretreatment is the key point of trace analysis. At present, the pretreatment methods for trace organic pollutants in water, which have mature technical development, high extraction efficiency and more use, include Solid Phase Extraction (SPE), solid phase micro-extraction (spme), membrane extraction (membrane extraction), semi-permeable membrane passive sampling device (SPMD), and the like. Generally, the total volume of a filtered water sample is 20L or even more than 50L, the flow rate of the water sample passing through a filtering membrane and an extraction column is low, when the traditional filter flask experiment system is adopted for filtering the water sample, manual operation is needed for pouring waste water or replacing the filter flask every few minutes, and preparation of a concentrated sample usually needs tens of hours or tens of hours, so that time and labor are wasted.

Disclosure of Invention

In view of this, the invention provides a system and a method for processing a water sample for environmental monitoring, and aims to solve the problems of how to reduce the input of manpower and improve the working efficiency during the pretreatment of the water sample.

In one aspect, the present invention provides an environmental monitoring water sample processing system, comprising:

the water collecting tank is used for containing a water sample to be treated, and a liquid level sensor is arranged on the inner side wall of the water collecting tank;

the filter comprises three filters, namely a first filter, a second filter and a third filter, wherein filter membranes are arranged in the filters to filter a water sample, the three filters are arranged side by side, the inner diameters of the first filter and the second filter are equal, the inner diameter of the third filter is larger than that of the first filter and the second filter, a first electromagnetic valve is arranged between the first filter and the water collecting tank, a second electromagnetic valve is arranged between the second filter and the water collecting tank, and a third electromagnetic valve is arranged between the third filter and the water collecting tank;

the image acquisition unit is arranged right above the three filters to acquire the filtered image information;

the confluence device is respectively connected with the output ends of the three filters so as to make the water samples filtered by the three filters converge therein;

the three enrichment units are respectively connected with the junction station so as to enrich the water sample filtered by the filter;

the collecting boxes are respectively connected with the three enrichment units so as to collect the water samples output by the enrichment units;

the control unit is respectively and electrically connected with the image acquisition unit, the liquid level sensor, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve; wherein the content of the first and second substances,

the control unit comprises a processing module, an acquisition module and a control module, wherein the acquisition module is used for acquiring image data of three filters acquired by the image acquisition unit and liquid level height information in the water collection tank acquired by the liquid level sensor and transmitting the image data and the liquid level height information to the processing module, the control module is used for respectively controlling the opening or closing of the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve, and the processing module is used for determining the opening or closing states of the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve according to the liquid level height information, so that a water sample output by the water collection tank passes through the electromagnetic valve in the opening state and then is input into the filter connected with the electromagnetic valve for filtering;

the processing module is further used for enabling the image acquisition unit to acquire image data of each filter when each filter filters the water sample passing through the filter, processing the acquired image data, and determining whether to enable the filter to continue to filter the water sample according to a processing result;

the processing module is further used for determining the number of the enrichment units participating in water sample enrichment according to the opening state of each electromagnetic valve after the water sample is filtered by the filter and enters the junction station, and enabling the water sample in the junction station to flow into the enrichment units participating in water sample enrichment after the number of the enrichment units participating in water sample enrichment is determined.

Further, the processing module is further configured to set a first preset liquid level height Q1, a second preset liquid level height Q2, a third preset liquid level height Q3 and a fourth preset liquid level height Q4, wherein Q1 < Q2 < Q3 < Q4;

the processing module is further used for obtaining a real-time liquid level height Delta Q in the water collecting tank after a water sample to be processed is injected into the water collecting tank, and determining the opening or closing states of the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve according to the relation between the real-time liquid level height Delta Q and each preset liquid level height:

when the delta Q is less than or equal to Q1, the first electromagnetic valve is opened, the second electromagnetic valve and the third electromagnetic valve are in a closed state, and the first filter is used for filtering the water sample in the water collecting tank;

when Q1 <. DELTA.Q is less than or equal to Q2, the first electromagnetic valve and the second electromagnetic valve are opened, and the third electromagnetic valve is in a closed state, so that the first filter and the second filter simultaneously filter the water sample in the water collecting tank;

when Q2 <. DELTA.Q is less than or equal to Q3, the first electromagnetic valve and the third electromagnetic valve are opened, the second electromagnetic valve is in a closed state, and the first filter and the third filter simultaneously filter the water sample in the water collecting tank;

when Q3 <. DELTA.Q is less than Q4, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are opened, so that the three filters simultaneously filter the water sample in the water collecting tank.

Further, the processing module is further configured to enable the image data of each filter acquired by the image acquisition unit after a preset time interval Δ T after determining the open or close state of the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve according to the relationship between the real-time liquid level height Δ Q and each preset liquid level height, and determine whether to enable each filter to continue to filter the water sample according to the image data.

Further, the processing module is further configured to select an image frame from the image data after acquiring the image data of each filter acquired by the image acquisition unit, and intercept three rectangular image blocks from the image frame and respectively label the image blocks, and mark the image blocks as a first image block, a second image block and a third image block, where the first image block includes image information of the first filter, the second image block includes image information of the second filter, and the third image block includes image information of the third filter;

the processing module is further configured to perform gray processing on the first image block, the second image block, and the third image block, acquire a gray value of the first image block, and record the gray value as a first gray value W1, acquire a gray value of the second image block, and record the gray value as a second gray value W2, acquire a gray value of the third image block, and record the gray value as a first gray value W3;

the processing module determines the opening and closing states of the first filter, the second filter and the third filter according to the relationship between the gray values of the three image blocks and a preset standard gray value W0:

when W1 < W0, closing the first solenoid valve so that the first filter stops filtering of the water sample; when W1 is more than or equal to W0, the first electromagnetic valve is opened, so that the first filter filters the water sample;

when W2 < W0, closing the second solenoid valve so that the second filter stops filtering of the water sample; when W2 is more than or equal to W0, the second electromagnetic valve is opened, so that the second filter filters the water sample;

when W3 < W0, closing the third solenoid valve so that the third filter stops filtering of the water sample; when W3 is more than or equal to W0, the third electromagnetic valve is opened, so that the third filter filters the water sample.

Further, the processing module is further configured to set a first preset interval duration T1, a second preset interval duration T2, a third preset interval duration T3, and a fourth preset interval duration T4, where T1 > T2 > T3 > T4;

the processing module is further configured to set the preset duration Δ T according to a relationship between the real-time liquid level height Δ Q and each of the preset liquid level heights:

when the delta Q is less than or equal to Q1, selecting the first preset interval time length T1 as the preset time length delta T;

when Q1 is less than delta Q and less than or equal to Q2, selecting the second preset interval time length T2 as the preset time length delta T;

when Q2 <. DELTA.Q < Q3, selecting the third preset interval duration T3 as the preset duration DeltaT;

when Q3 <. DELTA.Q < Q4, selecting the fourth preset interval duration T4 as the preset duration DeltaT;

when the ith preset interval duration Ti is selected as the preset duration Δ T, and i is 1,2,3,4, after the processing module determines the open or close states of the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve according to the relationship between the real-time liquid level height Δ Q and each preset liquid level height, the image acquisition unit acquires image data of each filter after the interval of the preset duration Δ T.

Further, the processing module is further configured to set a first preset interval duration adjustment coefficient a1, a second preset interval duration adjustment coefficient a2, a third preset interval duration adjustment coefficient a3, and a fourth preset interval duration adjustment coefficient a4, where 0.5 < a1 < a2 < a3 < a4 < 1; the processing module is further configured to set a first preset average gray-scale value W01, a second preset average gray-scale value W02, a third preset average gray-scale value W03 and a fourth preset average gray-scale value W04, wherein W01 is more than W02 and more than W03 and less than W04;

the processing module is further configured to obtain image data of each filter at intervals of the preset time length Δ T, perform gray processing on the image data, obtain gray values of three image blocks, calculate an average gray value Δ W of the three image blocks, and set an interval time length adjustment coefficient according to a relationship between the average gray value Δ W and each preset average gray value to correct the preset time length Δ T:

when Δ W is less than W01, selecting the first preset interval duration adjustment coefficient a1, and correcting the preset duration Δ T, where the preset duration Δ T is set as the ith preset interval duration Ti, and the corrected interval duration is Ti × a 1;

when the delta W is more than or equal to W01 and less than W02, selecting a second preset interval time length adjusting coefficient a2, and correcting the preset time length delta T, wherein the preset time length delta T is set as the ith preset interval time length Ti, and the corrected interval time length is Ti x a 2;

when the delta W is more than or equal to W02 and less than W03, selecting a third preset interval time length adjusting coefficient a3, and correcting the preset time length delta T, wherein the preset time length delta T is set as the ith preset interval time length Ti, and the corrected interval time length is Ti x a 3;

when the delta W is more than or equal to W03 and less than W04, selecting a fourth preset interval time length adjusting coefficient a4, and correcting the preset time length delta T, wherein the preset time length delta T is set as the ith preset interval time length Ti, and the corrected interval time length is Ti x a 4.

Further, the processing module is further configured to determine, according to the opening state of each of the electromagnetic valves, the number of enrichment units participating in water sample enrichment:

when one of the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve is in an opening state, the first enrichment unit is opened;

when two of the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are in an opening state, the first enrichment unit and the second enrichment unit are opened;

and when the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are all in an opening state, the first enrichment unit, the second enrichment unit and the third enrichment unit are opened.

Further, the processing module is further configured to set a preset reference gray value Wz;

the processing module is further configured to adjust the turn-on strategies of the first, second, and third enrichment units according to the relationship between the first gray-scale value W1, the second gray-scale value W2, and the first gray-scale value W3 and the preset reference gray-scale value Wz:

when W1 ≦ Wz, W2 ≦ Wz, and W3 ≦ Wz, allowing the first, second, and third enrichment units to be turned on simultaneously;

when W1 > Wz, W2 > Wz and W3 > Wz, only one of the first, second and third enrichment units is allowed to be turned on;

when W1 ≦ Wz, W2 ≦ Wz, and W3 > Wz, or when W1 ≦ Wz, W2 > Wz, and W3 ≦ Wz, or when W1 > Wz, W2 ≦ Wz, and W3 ≦ Wz, then allowing two of the first, second, and third enrichment units to be turned on;

when W1 > Wz, W2 > Wz and W3 ≦ Wz, or when W1 > Wz, W2 ≦ Wz and W3 > Wz, or when W1 ≦ Wz, W2 > Wz and W3 > Wz, then two of the first, second and third enrichment units are allowed to turn on.

Compared with the prior art, the invention has the advantages that the water collection tank, the plurality of filters and the plurality of enrichment units are arranged, so that the water sample in the water collection tank can be pretreated through the plurality of filters and the plurality of enrichment units, and the pretreatment efficiency of the water sample can be effectively improved; meanwhile, the pretreatment process of the multi-water sample is controlled only by the arranged image acquisition unit and the control unit, so that the pretreatment operation of the water sample can be completed without human intervention, not only is the labor saved, but also the increase of the treatment time caused by the human intervention is avoided, the time is greatly saved, and the working efficiency is improved.

Furthermore, the processing module is used for determining the opening or closing states of the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve according to the liquid level height information, so that a water sample output by the water collecting tank is input into a filter connected with the electromagnetic valves for filtering after passing through the electromagnetic valves in the opening states, the amount of the water sample to be processed in the water collecting tank can be determined according to the liquid level height information of the water collecting tank, the number of the adopted filters is determined according to the amount of the water sample to be processed, the processing efficiency of the water sample can be ensured, the invalid investment of the filters is avoided, and the effective utilization rate of resources is improved.

Furthermore, the processing module is further configured to enable the image acquisition unit to acquire image data of each filter when each filter filters a water sample passing through the filter, process the acquired image data, determine whether to enable the filter to continue to filter the water sample according to a processing result, judge the water filtration efficiency of the filter by reflecting the pollution degree of the filter according to the image information of the filter, and timely adjust the opening state of the filter according to the water filtration efficiency of the filter, so that the filtering process of the water sample can be ensured to be uninterrupted, and meanwhile, the filtering process of the water sample can be effectively ensured.

Furthermore, the processing module is further configured to determine the number of the enrichment units participating in the water sample enrichment according to the opening states of the electromagnetic valves after the water sample is filtered by the filter and enters the flow combiner, and after the number of the enrichment units participating in the water sample enrichment is determined, the water sample in the flow combiner flows into the enrichment units participating in the water sample enrichment, and the enrichment efficiency of the water sample can be effectively improved by adjusting the opening states of the enrichment units in time according to the water filtration efficiency of the filter.

On the other hand, the invention also provides an environmental monitoring water sample treatment method, which is implemented by adopting the environmental monitoring water sample treatment system and comprises the following steps:

step a: acquiring image data of the three filters acquired by the image acquisition unit and liquid level height information in the water collection tank acquired by the liquid level sensor;

step b: determining the opening or closing states of the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve according to the acquired liquid level height information, so that a water sample output by the water collecting tank passes through the electromagnetic valve in the opening state and then is input into a filter connected with the electromagnetic valve for filtering;

step c: processing the acquired image data, and determining whether to enable the filter to continue to filter the water sample according to a processing result;

step d: after the water sample is filtered by the filter and enters the junction station, the number of the enrichment units participating in the water sample enrichment is determined according to the opening state of each electromagnetic valve, and the water sample in the junction station flows into the enrichment units participating in the water sample enrichment after the number of the enrichment units participating in the water sample enrichment is determined.

Further, after a water sample to be treated is injected into the water collection tank, a real-time liquid level height Δ Q in the water collection tank is obtained, and the opening or closing states of the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are determined according to the relation between the real-time liquid level height Δ Q and each preset liquid level height:

It can be understood that the above-mentioned method for processing the environmental monitoring water sample has the same beneficial effects as the environmental monitoring water sample processing system, and the details are not repeated herein.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic structural diagram of a water sample processing system for environmental monitoring provided by an embodiment of the invention;

FIG. 2 is a functional block diagram of an environmental monitoring water sample processing system provided by an embodiment of the present invention;

fig. 3 is a flowchart of a method for processing a water sample for environmental monitoring according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. 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.

Referring to fig. 1, this embodiment provides an environmental monitoring water sample processing system, including header tank, filter, image acquisition unit, converge the ware, enrichment unit, collecting box and the control unit, wherein, the header tank is a box structure, and it is used for holding pending water sample, be provided with level sensor on the inside wall of header tank, detect the liquid level height in the header tank through level sensor, and then can acquire the capacity of the water sample in the header tank.

Specifically, the filter is a transparent structure, and comprises a transparent shell, wherein a filtering membrane is arranged inside the transparent shell so as to filter the water sample. The filter sets up threely side by side, marks as first filter, second filter and third filter, the internal diameter of first filter and second filter equals, the internal diameter of third filter is greater than first filter and second filter, first filter with be provided with first solenoid valve between the header tank, the second filter with be provided with the second solenoid valve between the header tank, the third filter with be provided with the third solenoid valve between the header tank.

Specifically, an image acquisition unit is disposed directly above the three filters to acquire the filtered image information. The image acquisition unit is a high-definition camera and can acquire video or picture data.

Specifically, the junction station is respectively connected with the output ends of the three filters, so that water samples filtered by the three filters are converged therein; the junction station is of a box structure, and a water inlet and a water outlet are formed in the side wall of the junction station, so that water samples flowing out of the three filters are collected in the junction station.

Specifically, the enrichment unit sets up threely, marks as first enrichment unit, second enrichment unit and third enrichment unit, and three the enrichment unit respectively with the confluence ware is connected to enrich the water sample after the filter filters.

Specifically, the collecting box is connected with three enrichment unit respectively to collect the water sample of enrichment unit output, after the water sample is collected, the subsequent flow of accessible is bottled and is preserved.

Specifically, the control unit is respectively electrically connected with the image acquisition unit, the liquid level sensor, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve, and the control unit is used for carrying out data processing and outputting control instructions so as to uniformly control all the parts. The control unit is preferably a unit provided with data processing and control output, such as an industrial personal computer or a computer.

Referring to fig. 2, the control unit includes a processing module, an acquisition module and a control module, the acquisition module is configured to acquire image data of three filters acquired by the image acquisition unit and liquid level height information in the water collection tank acquired by the liquid level sensor, and transmit the image data and the liquid level height information to the processing module, the control module is configured to control opening or closing of the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve, respectively, and the processing module is configured to determine opening or closing states of the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve according to the liquid level height information, so that a water sample output by the water collection tank passes through the electromagnetic valve in the opening state and then is input to the filter connected to the electromagnetic valve for filtering.

Particularly, converge and pass through the pipe connection between ware and the enrichment unit, and be provided with the solenoid valve on the connecting tube, in order to control the water sample entering arbitrary enrichment unit in the ware that converges through the solenoid valve that sets up, and the solenoid valve is controlled through control module.

Specifically, the processing module is further configured to, when each of the filters a water sample passing through the filter, enable the image acquisition unit to acquire image data of each of the filters, process the acquired image data, and determine whether to enable the filter to continue to filter the water sample according to a processing result.

Specifically, the processing module is further configured to determine the number of the enrichment units participating in water sample enrichment according to the opening state of each electromagnetic valve after a water sample is filtered by the filter and enters the junction station, and make the water sample in the junction station flow into the enrichment units participating in water sample enrichment after determining the number of the enrichment units participating in water sample enrichment.

Specifically, the processing module is further configured to set a first preset liquid level height Q1, a second preset liquid level height Q2, a third preset liquid level height Q3 and a fourth preset liquid level height Q4, wherein Q1 < Q2 < Q3 < Q4;

Specifically, the processing module is further configured to, after the opening or closing states of the first electromagnetic valve, the second electromagnetic valve, and the third electromagnetic valve are determined according to the relationship between the real-time liquid level height Δ Q and each preset liquid level height, enable the image data of each filter acquired by the image acquisition unit after a preset time interval Δ T, and determine whether to enable each filter to continue to filter the water sample according to the image data.

Specifically, the processing module is further configured to select an image frame from the image data after acquiring the image data of each filter acquired by the image acquisition unit, and intercept three rectangular image blocks from the image frame, which are respectively labeled as a first image block, a second image block and a third image block, where the first image block includes image information of the first filter, the second image block includes image information of the second filter, and the third image block includes image information of the third filter;

Specifically, the processing module determines the opening and closing states of the first filter, the second filter and the third filter according to the relationship between the gray-scale values of the three image blocks and a preset standard gray-scale value W0, so that the priority is greater than the priority of the processing module when determining the opening or closing states of the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve according to the relationship between the real-time liquid level height Δ Q and each preset liquid level height.

Specifically, the processing module is further configured to set a first preset interval duration T1, a second preset interval duration T2, a third preset interval duration T3, and a fourth preset interval duration T4, where T1 > T2 > T3 > T4;

Specifically, the processing module is further configured to set a first preset interval duration adjustment coefficient a1, a second preset interval duration adjustment coefficient a2, a third preset interval duration adjustment coefficient a3, and a fourth preset interval duration adjustment coefficient a4, where 0.5 < a1 < a2 < a3 < a4 < 1; the processing module is further configured to set a first preset average gray-scale value W01, a second preset average gray-scale value W02, a third preset average gray-scale value W03 and a fourth preset average gray-scale value W04, wherein W01 is more than W02 and more than W03 and less than W04;

Specifically, the processing module is further configured to determine, according to the opening state of each of the electromagnetic valves, the number of enrichment units participating in water sample enrichment:

Specifically, the processing module is further configured to set a preset reference gray value Wz;

It can be seen that, in the above embodiment, by arranging the water collection tank, the plurality of filters and the plurality of enrichment units, the water sample in the water collection tank can be pretreated through the plurality of filters and the plurality of enrichment units, and the pretreatment efficiency of the water sample can be effectively improved; meanwhile, the pretreatment process of the multi-water sample is controlled only by the arranged image acquisition unit and the control unit, so that the pretreatment operation of the water sample can be completed without human intervention, not only is the labor saved, but also the increase of the treatment time caused by the human intervention is avoided, the time is greatly saved, and the working efficiency is improved.

Furthermore, the processing module is further configured to enable the image acquisition unit to acquire image data of each filter when each filter filters a water sample passing through the filter, process the acquired image data, determine whether to enable the filter to continue to filter the water sample according to a processing result, judge the water filtration efficiency of the filter by reflecting the pollution degree of the filter according to the image information of the filter, and timely adjust the opening state of the filter according to the water filtration efficiency of the filter, so that the filtering process of the water sample can be ensured not to be interrupted, and meanwhile, the filtering process of the water sample can be effectively ensured.

Referring to fig. 3, in another preferred embodiment based on the foregoing example, the present embodiment provides a method for processing an environmental monitoring water sample, and the method of the present embodiment is implemented by using the environmental monitoring water sample processing system in the foregoing example, and includes the following steps:

Specifically, after a water sample to be treated is injected into the water collection tank, a real-time liquid level height Δ Q in the water collection tank is obtained, and the opening or closing states of the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are determined according to the relation between the real-time liquid level height Δ Q and each preset liquid level height:

Specifically, after the opening or closing states of the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are determined according to the relation between the real-time liquid level height Δ Q and each preset liquid level height through the processing module, the image data of each filter acquired by the image acquisition unit is acquired after a preset time interval Δ T, and whether each filter is continuously filtered is determined according to the image data.

Specifically, after the image data of each filter acquired by the image acquisition unit is acquired by the processing module, an image frame is selected from the image data, three rectangular image blocks are cut from the image frame and respectively labeled as a first image block, a second image block and a third image block, the first image block comprises the image information of the first filter, the second image block comprises the image information of the second filter, and the third image block comprises the image information of the third filter;

respectively carrying out gray processing on the first image block, the second image block and the third image block through the processing module, acquiring a gray value of the first image block, recording the gray value as a first gray value W1, acquiring a gray value of the second image block, recording the gray value as a second gray value W2, and acquiring a gray value of the third image block, recording the gray value as a first gray value W3;

determining the opening and closing states of the first filter, the second filter and the third filter according to the relationship between the gray values of the three image blocks and a preset standard gray value W0 through the processing module:

Specifically, the processing module determines the opening and closing states of the first filter, the second filter and the third filter according to the relationship between the gray-scale values of the three image blocks and a preset standard gray-scale value W0, so that the priority is higher than the priority of the processing module when the processing module determines the opening or closing states of the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve according to the relationship between the real-time liquid level height Δ Q and each preset liquid level height.

Specifically, a first preset interval duration T1, a second preset interval duration T2, a third preset interval duration T3 and a fourth preset interval duration T4 are set through the processing module, and T1 > T2 > T3 > T4;

setting the preset time length delta T according to the relation between the real-time liquid level height delta Q and each preset liquid level height through the processing module:

Specifically, a first preset interval duration adjustment coefficient a1, a second preset interval duration adjustment coefficient a2, a third preset interval duration adjustment coefficient a3 and a fourth preset interval duration adjustment coefficient a4 are set by the processing module, and 0.5 < a1 < a2 < a3 < a4 < 1; setting a first preset average gray value W01, a second preset average gray value W02, a third preset average gray value W03 and a fourth preset average gray value W04 through the processing module, wherein W01 is more than W02 and more than W03 and less than W04;

acquiring image data of each filter at intervals of the preset time length Delta T by the processing module, performing gray processing on the image data, acquiring gray values of three image blocks, calculating an average gray value Delta W of the three image blocks, and setting an interval time length adjusting coefficient according to a relation between the average gray value Delta W and each preset average gray value to correct the preset time length Delta T:

Specifically, the processing module determines the number of the enrichment units participating in the water sample enrichment according to the opening state of each electromagnetic valve:

Specifically, the preset reference gray value Wz is set by the processing module. Adjusting, by the processing module, the turn-on strategies of the first, second, and third enrichment units according to the relationship between the first, second, and first gray-scale values W1, W2, W3 and the preset reference gray-scale value Wz:

Furthermore, after the water sample is filtered by the filter and enters the junction station, the processing module determines the number of the enrichment units participating in the water sample enrichment according to the opening state of each electromagnetic valve, and after the number of the enrichment units participating in the water sample enrichment is determined, the water sample in the junction station flows into the enrichment units participating in the water sample enrichment, and the water sample enrichment efficiency can be effectively improved by adjusting the opening state of the enrichment units in time according to the water filtration efficiency of the filter.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.

Claims

1. A water sample processing system for environmental monitoring, comprising:

2. The environmental monitoring water sample processing system of claim 1, wherein the processing module is further configured to set a first preset level height Q1, a second preset level height Q2, a third preset level height Q3, and a fourth preset level height Q4, and Q1 < Q2 < Q3 < Q4;

3. The environmental monitoring water sample processing system according to claim 2, wherein the processing module is further configured to enable the image data of each filter acquired by the image acquisition unit after a preset time interval Δ T after determining the open or close state of the first solenoid valve, the second solenoid valve and the third solenoid valve according to the relationship between the real-time liquid level height Δ Q and each preset liquid level height, and determine whether to enable each filter to continue to filter the water sample according to the image data.

4. The water sample processing system for environmental monitoring as recited in claim 3, wherein the processing module is further configured to select an image frame from the image data after acquiring the image data of each of the filters acquired by the image acquisition unit, and intercept three rectangular image blocks from the image frame, which are respectively labeled as a first image block, a second image block, and a third image block, the first image block including the image information of the first filter, the second image block including the image information of the second filter, and the third image block including the image information of the third filter;

5. The environmental monitoring water sample processing system of claim 4, wherein the processing module is further configured to set a first preset interval duration T1, a second preset interval duration T2, a third preset interval duration T3, and a fourth preset interval duration T4, and T1 > T2 > T3 > T4;

6. The environmental monitoring water sample treatment system according to claim 5, wherein the processing module is further configured to set a first preset interval duration adjustment coefficient a1, a second preset interval duration adjustment coefficient a2, a third preset interval duration adjustment coefficient a3 and a fourth preset interval duration adjustment coefficient a4, and 0.5 < a1 < a2 < a3 < a4 < 1; the processing module is further configured to set a first preset average gray-scale value W01, a second preset average gray-scale value W02, a third preset average gray-scale value W03 and a fourth preset average gray-scale value W04, wherein W01 is more than W02 and more than W03 and less than W04;

7. The water sample processing system for environmental monitoring according to claim 5, wherein the processing module is further configured to determine the number of enrichment units participating in water sample enrichment according to the opening state of each solenoid valve:

8. The environmental monitoring water sample processing system of claim 5, wherein the processing module is further configured to set a preset reference grey value Wz;

9. An environmental monitoring water sample treatment method, which is implemented by using the environmental monitoring water sample treatment system according to any one of claims 1 to 8, and comprises the following steps:

10. The water sample treatment method for environmental monitoring according to claim 9,

after a water sample to be treated is injected into the water collecting tank, acquiring a real-time liquid level height Delta Q in the water collecting tank, and determining the opening or closing states of the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve according to the relation between the real-time liquid level height Delta Q and each preset liquid level height: