CN-122023093-A - Soil heavy metal pollutant traceability management system and method

CN122023093ACN 122023093 ACN122023093 ACN 122023093ACN-122023093-A

Abstract

The invention discloses a soil heavy metal pollutant traceability management system and a method, in particular to the field of soil environment monitoring and pollution traceability management, which comprises the steps of dividing each operation into an entering section, an acting section and an exiting section according to the operation types, passing positions and passing moments uploaded by land block nodes, canal nodes, road nodes and machine tool nodes in an edge network, determining sample types according to media corresponding to each section and generating a contact section sequence.

Inventors

LIU WEIJING
REN JINGHUA
CUI XIAODAN
LI WENBO
ZHOU QIANG
WANG YUANYUAN
WANG ZIYI
XU HONGTING
LI WENTING

Assignees

江苏省地质调查研究院

Dates

Publication Date: 20260512
Application Date: 20260413

Claims (10)

1. The method for tracing and managing the heavy metal pollutants in the soil is characterized by comprising the following steps: S1, splitting each operation into an entering section, an acting section and an exiting section according to the operation types, passing positions and passing moments uploaded by land block nodes, canal nodes, road nodes and machine tool nodes in an edge network, determining sample types according to media corresponding to each section, and generating a contact section sequence; S2, writing actual sample records formed in corresponding time periods into a contact section sequence according to a position sequence, checking whether corresponding sample records exist in each contact section by section, determining the last contact section with the corresponding sample record and the first contact section without the corresponding sample record in the contact section sequence, and generating a gap section; S3, for heavy metal anomaly records of the abnormal land block, reversely reading each contact segment from the contact segment sequence reaching the abnormal land block from the near to the far according to the reaching moment, stopping when the gap segment is read, and determining the contact segment between the abnormal land block and the gap segment as a segment sequence to be judged; S4, in the sequence of the segments to be judged, reading a ploughing record, a wheel irrigation record, a rainfall record, a machine cleaning record and a coverage record after each contact segment, sequentially checking whether the carrier corresponding to the notch segment is shifted, mixed, scattered and cleared, and determining the segment to be judged without the original sampling condition after checking as a shielding segment sequence; S5, merging the shielding segment sequences according to the abnormal land parcels, the operation batch, the entering paths and the shielding sequence, generating a tracing record containing the abnormal land parcels, the contact segment sequences, the notch segments, the shielding segment sequences and the entering paths, and outputting a tracing result of the soil heavy metal pollutants.
2. The soil heavy metal pollutant tracing management method according to claim 1, wherein the method comprises the following steps: The S1 comprises the following steps: S1-1, arranging all passing positions of the same operation in ascending order according to the passing time, merging records which are continuous in the passing time and have the same passing position into one passing position, and outputting a position sequence; S1-2, determining the passing position with the sequence number of the first position as an entering section, determining the passing position with the sequence number of the last position as an exiting section, determining the passing position with the sequence number between the first position and the last position as an acting section according to the arrangement sequence of all the passing positions in the position sequence, and outputting a section sequence; s1-3, determining a medium according to the node type corresponding to the passing position of each segment in the segment sequence, determining a sample type according to the medium, and outputting a contact segment sequence according to the arrangement sequence of the entering segment, the acting segment and the leaving segment.
3. The soil heavy metal pollutant tracing management method according to claim 2, wherein the method comprises the following steps: The step S2 comprises the following steps: S2-1, writing actual sample records formed in corresponding time periods into each contact section in a contact section sequence according to a position sequence, sequentially checking whether the passing position is consistent with the contact section, whether the sampling time falls into the corresponding time period, whether the sample type is consistent with the sample type corresponding to the contact section or not for each actual sample record, writing the corresponding contact section when the three items are consistent, and writing the exclusion record of the contact section when any item is inconsistent, so as to generate a section record table; S2-2, counting the actual sample record quantity and the exclusion record quantity in each contact section according to the section record table, determining the contact section with the actual sample record quantity larger than zero as a sample section, determining the contact section with the actual sample record quantity equal to zero and the exclusion record quantity equal to zero as a no-sample section, determining the contact section with the actual sample record quantity equal to zero and the exclusion record quantity larger than zero as an exclusion section, and generating a section state table.
4. The soil heavy metal contaminant traceability management method according to claim 3, wherein the method comprises the steps of: the S2 further includes: S2-3, reading a segment state table according to the arrangement sequence of a contact segment sequence, determining the current contact segment as a last segment and the next contact segment as a first segment when the current contact segment is a sample segment and the next contact segment is a no-sample segment, continuing to read the continuous removal segment backwards when the current contact segment is a sample segment and the next contact segment is a removal segment, discarding the current contact segment and continuing to read from the sample segment when the sample segment appears after the continuous removal segment, determining the current contact segment as a last segment and the no-sample segment as a first segment when the no-sample segment appears after the continuous removal segment, and generating a disconnection table; S2-4, determining the position between the last segment and the first segment in the disconnection table as a notch segment, writing the notch segment into a corresponding contact segment sequence, and generating the notch segment.
5. The method for traceability management of soil heavy metal pollutants according to claim 4, wherein the method comprises the following steps: The step S3 comprises the following steps: S3-1, extracting a contact segment sequence of the abnormal land block corresponding to the last contact segment from all contact segment sequences according to the heavy metal abnormal record of the abnormal land block, and arranging the contact segment sequences in descending order according to the arrival time of the last contact segment to generate a readback sequence; S3-2, reading each contact segment sequence in the readback sequence from back to front segment by segment according to the arrangement sequence of the contact segments, stopping reading when a gap segment is read, and writing each contact segment from the back of the gap segment to the front of an abnormal land block into a table to be judged to form a candidate segment sequence; S3-3, counting the number of contact segments of each candidate segment sequence in the to-be-judged table, arranging the contact segments in ascending order according to the number of the contact segments, arranging the contact segments in descending order according to the arrival time of the first contact segment when the number of the contact segments is the same, and taking the candidate segment sequence at the first position of the arrangement to determine the candidate segment sequence as the to-be-judged segment sequence.
6. The method for traceability management of soil heavy metal pollutants according to claim 5, wherein the method comprises the following steps: the step S4 comprises the following steps: S4-1, extracting ploughing records, wheel irrigation records, rainfall records, machine tool cleaning records and coverage records after the contact segment reaches the moment in each contact segment in the sequence of the to-be-judged segments, arranging according to the ascending sequence of the occurrence moment, and writing the records with the occurrence positions consistent with the positions of the contact segments into the contact segments to form a subsequent record sequence; S4-2, reading the subsequent recording sequences of all the contact sections one by one according to the occurrence time sequence, marking the corresponding carrier of the contact section as shift when the turning record is read, marking the corresponding carrier of the contact section as mixed when the turning record is not marked as shift and the rotation record is read, marking the corresponding carrier of the contact section as scattered when the turning record is not marked as mixed and the rainfall record is read, marking the corresponding carrier of the contact section as clear when the machine cleaning record is not read and the coverage record is read, and forming a carrier state table.
7. The method for traceability management of soil heavy metal pollutants according to claim 6, wherein the method comprises the following steps: the S4 further includes: S4-3, checking whether the carrier corresponding to the notch section is marked as shift, mixed, scattered and cleared in the contact section of each contact section in the carrier state table, writing the contact section into a shielding table when records exist in four cores, and writing the contact section into a reserved table when records do not exist in all four cores; s4-4, writing each contact section in the shielding table into the corresponding section sequence to be judged according to the arrangement sequence in the section sequence to be judged to form a shielding section sequence.
8. The soil heavy metal contaminant traceability management method according to claim 7, wherein the method comprises the steps of: The step S5 comprises the following steps: S5-1, extracting an abnormal land block, an operation batch, an entering path and a shielding sequence corresponding to each shielding segment sequence, and writing the shielding segment sequences with the same abnormal land block, the same operation batch and the same entering path into the same merging group to form a merging table; s5-2, arranging all shielding segment sequences in ascending order according to the shielding sequence for all merging groups in the merging table, and writing the contact segment sequence and the notch segment corresponding to the shielding segment sequence arranged at the first position into the merging group to form a group record table.
9. The soil heavy metal contaminant traceability management method according to claim 8, wherein the method comprises the steps of: The step S5 further includes: s5-3, sequentially reading the contact segment sequence, the notch segment, the shielding segment sequence and the entering path for each merging group in the group record table, and writing corresponding tracing records according to the abnormal land block to form a tracing record table; S5-4, outputting each tracing record in the tracing record table according to the abnormal land parcels, forming a tracing result of the soil heavy metal pollutants and outputting the tracing result.
10. Soil heavy metal pollutant management system that traces to source, its characterized in that includes: The contact splitting module splits each operation into an entering section, an acting section and an exiting section according to the operation types, the passing positions and the passing moments uploaded by land block nodes, canal nodes, road nodes and tool nodes in the edge network, determines sample types according to media corresponding to each section, and generates a contact section sequence; the gap identification module is used for writing actual sample records formed in the corresponding time period into the contact section sequence according to the position sequence, checking whether the corresponding sample records exist in each contact section by section, determining the last contact section with the corresponding sample record and the first contact section without the corresponding sample record in the contact section sequence, and generating a gap section; The reverse cut-off module is used for reversely reading each contact section from the contact section sequence reaching the abnormal land according to the arrival time from the near to the far through the heavy metal abnormal record of the abnormal land, stopping when the gap section is read, and determining the contact section between the abnormal land and the gap section as a section sequence to be judged; The shielding judging module is used for reading ploughing records, wheel irrigation records, rainfall records, machine tool cleaning records and coverage records after each contact section in the sequence of sections to be judged, sequentially checking whether the carrier corresponding to the notch section is shifted, mixed, scattered and cleared, and determining the sections to be judged without the original sampling condition after checking as the sequence of the shielding sections; And the result merging module is used for merging the shielding segment sequences according to the abnormal land parcels, the operation batch, the entering path and the shielding sequence, generating a tracing record containing the abnormal land parcels, the contact segment sequences, the notch segments, the shielding segment sequences and the entering path, and outputting a tracing result of the soil heavy metal pollutants.

Description

Soil heavy metal pollutant traceability management system and method Technical Field The invention relates to the technical field of soil environment monitoring and pollution traceability management, in particular to a soil heavy metal pollutant traceability management system and method. Background In the traceability management of heavy metal pollutants in soil, the existing treatment usually focuses on judging the input sources from which heavy metals in an abnormal land and the contribution relation of the sources, and the common practice is to collect soil samples, irrigation water samples, sediment samples or peripheral emission information in batches, and then combine space distribution comparison, source characteristic matching, history record checking or central end model analysis to form traceability conclusion; Taking agricultural lands with staggered distribution of surrounding cultivated lands and irrigation and drainage canal systems of mining areas as an example, under a field monitoring scene covered by an edge network, the field is required to not increase the operation burden remarkably in the sampling and transmission process, and is required to keep traceability of tracing judgment under the conditions that the turning, rotation irrigation, rainfall flushing and agricultural machinery cross-region operation continuously occur, but in such a scene, the short-time evidence really capable of indicating the abnormal input process often has hard constraints such as short time window, easy change of attachment position, easy coverage of subsequent operation, sampling return lag and the like, and as a result, although the accumulation of heavy metals can be detected in the subsequent part of an abnormal land, the phenomenon that abnormal water samples, surface layer attachment, road dust accumulation or contact traces which should appear in a preamble link are not reserved often appears, and finally the traditional method only can explain source types around the formed mixed result, but cannot judge whether the preamble key evidence is happened or is happened but is happened in the subsequent process; Therefore, how to identify and utilize the short-time evidence missing phenomenon which should occur before the formation of the heavy metal abnormality in the soil but is easily covered or digested by the subsequent operation under the constraint of the edge network so as to avoid the problem that the tracing judgment stays at the result interpretation level and the abnormal input process cannot be traced, and the method is a technical problem to be solved currently. Disclosure of Invention In order to overcome the defects of the prior art, the embodiment of the invention provides a soil heavy metal pollutant traceability management system and method, which are used for sequentially associating, reversely intercepting and merging and outputting a contact segment sequence, an actual sample record, a notch segment, a to-be-judged segment sequence and a shielding segment sequence formed by the same operation in an edge network so as to solve the problems that although an abnormal land block proposed in the background art can detect a heavy metal accumulation result, the preamble key evidence is easy to be erased by a subsequent process and is difficult to trace an abnormal input process. In order to achieve the aim, the invention provides the following technical scheme that the soil heavy metal pollutant traceability management method comprises the following steps: S1, splitting each operation into an entering section, an acting section and an exiting section according to the operation types, passing positions and passing moments uploaded by land block nodes, canal nodes, road nodes and machine tool nodes in an edge network, determining sample types according to media corresponding to each section, and generating a contact section sequence; S2, writing actual sample records formed in corresponding time periods into a contact section sequence according to a position sequence, checking whether corresponding sample records exist in each contact section by section, determining the last contact section with the corresponding sample record and the first contact section without the corresponding sample record in the contact section sequence, and generating a gap section; S3, for heavy metal anomaly records of the abnormal land block, reversely reading each contact segment from the contact segment sequence reaching the abnormal land block from the near to the far according to the reaching moment, stopping when the gap segment is read, and determining the contact segment between the abnormal land block and the gap segment as a segment sequence to be judged; S4, in the sequence of the segments to be judged, reading a ploughing record, a wheel irrigation record, a rainfall record, a machine cleaning record and a coverage record after each contact segment, sequentially checking whether the carrier corresponding