Method, system and device for judging zero point check abnormity before and after handover of operation and maintenance unit

By using dual independent sample t-test and positive and negative deviation determination methods before and after the handover of the operation and maintenance unit, the problem of difficult to judge the abnormal zero-point inspection results of gaseous pollutant monitoring equipment in the prior art is solved, and efficient and accurate abnormal judgments of monitoring data are achieved to ensure the reliability of the data.

CN119715935AActive Publication Date: 2025-03-28CHINA NAT ENVIRONMENTAL MONITORING CENT
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Patent Information

Application Number
CN202411915194.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-03-28
Estimated Expiration
2044-12-24

AI Technical Summary

Technical Problem

It is difficult for the prior art to effectively judge whether there is any abnormality in the zero-point inspection results of the gaseous pollutant monitoring equipment before and after handover of the operation and maintenance unit, resulting in the impact of the accuracy of the monitoring data.

Method used

The method based on double independent sample t-test is adopted. By comparing the mean and variance of the zero-point inspection data in a period of time before and after the handover of the operation and maintenance unit, we judge whether there is a significant difference, and a positive and negative deviation judgment is made to determine the abnormal situation of the zero-point inspection result.

Benefits of technology

It realizes efficient and accurate abnormal judgment of the zero-point inspection results before and after handover of operation and maintenance units, can effectively analyze distribution differences, help identify potential data abnormalities, and ensure the reliability of monitoring data.

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Abstract

The invention belongs to the technical field of atmospheric environment monitoring quality control, and relates to a zero point check abnormity judgment method, system and device before and after handover of an operation and maintenance unit, and the method comprises the steps: 1) determining the handover time of the operation and maintenance unit of each environment monitoring station; 2) acquiring zero point check data of each environment monitoring station within a period of time before and after handover of an operation and maintenance unit; 3) preprocessing the zero point check data; 4) performing t inspection on the preprocessed zero point inspection data to determine whether the zero point inspection data has significant difference; 5) for the environment monitoring stations with significant differences, performing positive and negative deviation judgment on zero point inspection results within a period of time after handover of the operation and maintenance units; and 6) judging whether the operation and maintenance unit interferes with the zero point check data or not based on the positive and negative deviation judgment results of the plurality of environment monitoring stations belonging to the same operation and maintenance unit. The problem that zero point check anomaly detection analysis is not carried out before and after handover of the operation and maintenance unit in the prior art is effectively solved.
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