Sewage poison monitoring projection positioning traceability method and system

Abstract

The invention belongs to a sewage monitoring technology, and particularly provides a sewage poison monitoring projection positioning traceability method and system, and the method comprises the steps: A1, collecting the current monitoring data of sewage of each point location (i, j) in a plurality of regions, the data comprising a poison content detection value C (i, j), time and a place; a2, obtaining a historical mean value M (i, j) of each point location according to the detection value of each point location close to current monitoring in multiple rounds, and obtaining R (i, j) = C (i, j)-M (i, j); the R (i, j) is compared with the threshold value of the R (i, j), and the R (i, j) which does not reach the threshold value is set to 0; obtaining F of each region; a3, searching the maximum value Fmax of the F, and taking an area corresponding to the Fmax as a traceability area; and A4, visually displaying the traceability area. The method has the advantages of accurate traceability and the like.

Description

Technical Field

[0001] This invention relates to wastewater monitoring technology, and in particular to a method and system for projecting, locating, and tracing the source of toxicity in wastewater. Background Technology

[0002] Wastewater toxicity monitoring involves comprehensive toxicity assessment and early warning of a specific area, such as key residential communities or industrial parks dealing with precursor chemicals. Since 2018, regular wastewater toxicity testing has been conducted in multiple provinces to monitor wastewater discharge during production and daily life processes, thereby detecting, addressing, and curbing the spread of drugs.

[0003] Numerous wastewater sampling points are deployed in the urban area. Wastewater samples are regularly collected from all points and sent to a wastewater testing laboratory for toxicity content testing. Staff determine whether the concentration values ​​at each sampling point exceed the standard. If they do, the source is traced back to the list of sampling points that exceeded the standard. Due to the flow of wastewater, a single abnormal discharge can cause abnormal test results from many sampling points, with very small concentration differences and unclear flow direction in the wastewater network. In the vertical grid wastewater network, staff often combine the concentration values ​​of four points around a key area into a grid area for comprehensive consideration to determine whether the grid area exceeds the standard and to identify the source. The shortcomings of this approach are: 1. The traceability process is inefficient, requiring manual statistics and step-by-step calculations, and lacks systematic, end-to-end analysis and calculation support.

[0004] 2. The calculation method is inaccurate, and the content values ​​at each sampling point during normal discharge (there may be a small amount of content even under normal conditions due to personal medication, etc.) are unclear, resulting in unclear concentration changes and affecting the results.

[0005] 3. The statistical method is unscientific. Directly comparing the concentration values ​​at four points cannot accurately reflect the overall change in drug content in the grid area.

[0006] 4. Lack of early warning effect, such as establishing electronic early warning fences and marking the key grid areas traced back to the source. Summary of the Invention

[0007] To address the shortcomings of the existing technical solutions, this invention provides a method for projecting location and tracing the source of toxicity in wastewater.

[0008] The objective of this invention is achieved through the following technical solution: A wastewater toxicity monitoring projection positioning and source tracing method, the source tracing method comprising the following steps: A1. Collect current monitoring data of sewage at various points (i,j) in multiple areas, including the drug content detection value C(i,j), time, and location; A2. Based on the detection values ​​of each point in multiple rounds of monitoring, obtain the historical average value M(i,j) of each point, and obtain R(i,j)=C(i,j)-M(i,j); Compare R(i,j) with its threshold, and set R(i,j) that does not reach the threshold to 0; Get each region ; A3. Find the maximum value of F. max , with F max The corresponding area serves as the source tracing area; A4. Visualize the traceability area.

[0009] The present invention also aims to provide a wastewater toxicity monitoring projection positioning and source tracing system for implementing the above-mentioned analysis method. This objective is achieved through the following technical solution: Wastewater toxicity monitoring projection positioning and tracing system, the tracing system comprising: The data acquisition module is used to collect current monitoring data of wastewater at each point (i,j), including the drug content detection value C(i,j), time, and location. The storage module is used to store the current monitoring data, historical monitoring data, and early warning thresholds; The calculation module is used to call the multi-round monitoring data in the storage module, obtain the historical average value M(i,j) of each point based on the detection values ​​of each point in the adjacent multi-round monitoring, obtain R(i,j)=C(i,j)-M(i,j); compare R(i,j) with its threshold, and set R(i,j) that does not reach the threshold to 0; obtain each region consisting of N adjacent points. The points contained in different regions overlap; find the maximum value F. max , with F max The corresponding area serves as the source tracing area; A visualization module is used to visually display the tracing area.

[0010] Compared with the prior art, the present invention has the following beneficial effects.

[0011] 1. High traceability efficiency; Establish methods and systems for statistical methods frequently used by staff to eliminate the need for manual operations; 2. The calculation method is more accurate; Although the normal drug content at each sampling point is extremely low due to personal medication and other reasons, it still affects the overall calculation results; 3. The statistical methods are more scientific; Compared with direct comparison of concentration values ​​at N points within the region, the norm statistical method was used, which better highlights the overall range of data variation. 4. Add fence warning; By using a real-time GIS map to draw electronic fences in the grid area and marking the background color, the traceability results are no longer just coordinates and names, but a real map. Attached Figure Description

[0012] The disclosure of this invention will become more readily understood with reference to the accompanying drawings. It will be readily understood by those skilled in the art that these drawings are merely illustrative of the technical solutions of this invention and are not intended to limit the scope of protection of this invention. In the drawings: Figure 1 This is a flowchart of the wastewater toxicity monitoring projection positioning and source tracing method; Figure 2 It is a visual display effect diagram. Detailed Implementation

[0013] Figures 1-2 The following description illustrates optional embodiments of the invention to teach those skilled in the art how to implement and reproduce the invention. Some conventional aspects have been simplified or omitted to teach the technical solutions of the invention. Those skilled in the art should understand that variations or substitutions derived from these embodiments will be within the scope of the invention. Those skilled in the art should understand that the following features can be combined in various ways to form multiple variations of the invention. Therefore, the invention is not limited to the optional embodiments described below, but is defined only by the claims and their equivalents.

[0014] Example 1

[0015] The wastewater toxicity monitoring projection positioning and source tracing method in this embodiment, such as Figure 1 As shown, the steps include: A1. Collect current monitoring data of sewage at various points (i,j) in multiple regions, including the drug content detection value C(i,j), time, and location.

[0016] A2. Based on the detection values ​​of each point in multiple rounds of monitoring, obtain the historical average value M(i,j) of each point, and obtain R(i,j)=C(i,j)-M(i,j).

[0017] Compare R(i,j) with its threshold, and set R(i,j) that does not reach the threshold to 0.

[0018] Get each region .

[0019] A3. Find the maximum value of F. max , with F max The corresponding area serves as the source area.

[0020] A4. Visualize the traceability area and mark it with color.

[0021] A5. Regulatory personnel conduct on-site investigations based on N locations within the traceability area.

[0022] The wastewater toxicity monitoring projection positioning and source tracing system of this embodiment, i.e., the system implementing the source tracing method of this embodiment, includes: The data acquisition module is used to collect current monitoring data of wastewater at each point (i,j), including the drug content detection value C(i,j), time, and location. The storage module is used to store the current monitoring data, historical monitoring data, and early warning thresholds; The calculation module is used to call the multi-round monitoring data in the storage module, obtain the historical average value M(i,j) of each point based on the detection values ​​of each point in the adjacent multi-round monitoring, obtain R(i,j)=C(i,j)-M(i,j); compare R(i,j) with its threshold, and set R(i,j) that does not reach the threshold to 0; obtain each region consisting of N adjacent points. The points contained in different regions overlap; find the maximum value F. max , with F max The corresponding area serves as the source tracing area; A visualization module is used to visually display the traceability area and to mark the traceability area with color.

[0023] Example 2

[0024] An example of the wastewater toxicity monitoring projection positioning and source tracing method and system according to Embodiment 1 of this application, applied to cocaine monitoring in a city in Southwest China.

[0025] In this embodiment, there are 9 sampling points in a certain city center area: Point 1 - Exit 11 of a certain road, Point 2 - Exit 12 of a certain road, Point 3 - Exit 13 of a certain road; Point 4 - Exit 21 of a certain road, Point 5 - Exit 22 of a certain road, Point 6 - Exit 23 of a certain road; Point 7 - Exit 31 of a certain road, Point 8 - Exit 32 of a certain road, and Point 9 - Exit 33 of a certain road.

[0026] Points 1, 2, 4, and 5 form the first region; points 2, 3, 5, and 6 form the second region; points 4, 5, 7, and 8 form the third region; and points 5, 6, 8, and 9 form the fourth region. Adjacent regions have overlapping points.

[0027] Wastewater samples were collected from 9 sampling points and sent to laboratory instruments for cocaine content testing.

[0028] The detection results for the current round (202x-07-20 10:00:00) are as follows: .

[0029] The results of the previous 5 rounds of testing are as follows: .

[0030] Round 1 D = {0.2, 0.3, 0.2, 0.2, 0.3, 0.2, 0.3, 0.2, 0.3}.

[0031] Round 2 D = {0.2, 0.1, 0.3, 0.2, 0.3, 0.2, 0.3, 0.2, 0.3}.

[0032] Round 3 D={0.2, 0.1, 0.3, 0.2, 0.3, 0.2, 0.3, 0.2, 0.3}.

[0033] Round 4: D = {0.2, 0.1, 0.3, 0.2, 0.3, 0.2, 0.3, 0.2, 0.3}.

[0034] Round 5 D={0.1, 0.2, 0.3, 0.2, 0.3, 0.2, 0.3, 0.2, 0.3}.

[0035] The historical average concentration AM(i,j) can be obtained; M(i,j)={0.18,0.16,0.28,0.20,0.30,0.20,0.30,0.20,0.30}.

[0036] The results of this round of testing are C(i,j)={0.7,0.8,0.6,0.7,0.3,0.2,0.3,0.2,0.3}.

[0037] Use R(i,j)=C(i,j)-M(i,j)={0.52,0.64,0.32,0.50,0.00,0.00,0.00,0.00,0.00}.

[0038] Based on the national standard threshold for drug content (0.5 ng / L for cocaine, 0.05 ng / L for benzoyl benzoate and tetrahydrocannabinol, and 0.2 ng / L for others), R(i,j) that do not meet the threshold are set to 0.

[0039] Finally, we get R(i,j)={0.52,0.64,0.00,0.50,0.00,0.00,0.00,0.00,0.00,0.00}.

[0040] use , and obtain the F value for each region.

[0041] F(1)=0.96, F(2)=0.64, F(3)=0.50, F(4)=0.

[0042] The actual concentration deviation was found to be highest in the F(1) grid region.

[0043] According to the tracing region F(1), it is known that the first, second, fourth and fifth points are involved.

[0044] {"Sampling point name": "Exit 11 of a certain road","Sampling point coordinates": "X1,Y1"}.

[0045] {"Sampling point name": "Exit 12 of a certain road","Sampling point coordinates": "X2,Y2"}.

[0046] {"Sampling point name": "Exit 21 of a certain road", "Sampling point coordinates": "X4,Y4"}.

[0047] {"Sampling point name": "Exit 22 of a certain road", "Sampling point coordinates": "X5,Y5"}.

[0048] Draw an electronic fence on a GIS map and mark the area within the fence in red, such as... Figure 2 As shown.

[0049] Staff members conducted on-site inspections based on the red areas identified by the electronic fence.

Claims

1. A wastewater toxicity monitoring projection positioning and source tracing method, characterized in that, The source tracing method includes the following steps: A1. Collect current monitoring data of sewage at various points (i,j) in multiple areas, including the drug content detection value C(i,j), time, and location; A2. Based on the detection values ​​of each point in multiple rounds of monitoring, obtain the historical average value M(i,j) of each point, and obtain R(i,j)=C(i,j)-M(i,j); Compare R(i,j) with its threshold, and set R(i,j) that does not reach the threshold to 0; Get each region ; A3. Find the maximum value of F. max , with F max The corresponding area serves as the source tracing area; A4. Visualize the traceability area.

2. The tracing method according to claim 1, characterized in that, The display method is as follows: The tracing area is marked with color.

3. The tracing method according to claim 1, characterized in that, The location includes its name and coordinates.

4. The tracing method according to claim 1, characterized in that, Adjacent areas have overlapping points.

5. The tracing method according to claim 1, characterized in that, The source tracing method also includes the following steps: A5. Regulatory personnel conduct on-site investigations based on N locations within the traceability area.

6. A wastewater toxicity monitoring projection positioning and source tracing system, characterized in that, The traceability system includes: The data acquisition module is used to collect current monitoring data of wastewater at each point (i,j), including the drug content detection value C(i,j), time, and location. The storage module is used to store the current monitoring data, historical monitoring data, and early warning thresholds; The calculation module is used to call the multi-round monitoring data in the storage module, obtain the historical average value M(i,j) of each point based on the detection values ​​of each point in the adjacent multi-round monitoring, obtain R(i,j)=C(i,j)-M(i,j); compare R(i,j) with its threshold, and set R(i,j) that does not reach the threshold to 0; obtain the value of each region. Find the maximum value of F. max , with F max The corresponding area serves as the source tracing area; A visualization module is used to visually display the tracing area.

7. The traceability system according to claim 1, characterized in that, The display method is as follows: The tracing area is marked with color.

8. The traceability system according to claim 1, characterized in that, The location includes its name and coordinates.

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