Title:
METHOD FOR DETECTING ANOMALY IN WATER QUALITY AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/141746
Kind Code:
A1
Abstract:
A method for detecting an anomaly in water quality and an electronic device. The method for detecting the anomaly in water quality comprises: calculating distance values between all water quality arrays in a water quality data set and a reference point, and forming all the distance values into a one-dimensional data set; calculating k nearest neighbors of each object of the one-dimensional data set; determining a pre-threshold; and dividing the ordered water quality data set into a plurality of data blocks, taking the pre-threshold as an outlier threshold, sequentially performing outlier detection on each data block, updating the outlier threshold to an N-th largest outlier of the detected data blocks, and taking the updated outlier threshold as a determination standard for performing outlier detection on the next data block. In the case that some of water quality abnormal points do not need to be known in advance and the global outlier does not need to be calculated, the outlier detection speed is accelerated, and it is guaranteed that the water quality abnormal detection result is consistent with the traditional distance-based outlier detection algorithm.
Inventors:
XU HONGLONG (CN)
GUO PEIQING (CN)
GUO PEIQING (CN)
Application Number:
PCT/CN2021/075420
Publication Date:
July 07, 2022
Filing Date:
February 05, 2021
Export Citation:
Assignee:
UNIV FOSHAN (CN)
International Classes:
G06K9/62; G01K13/00; G01N33/18
Foreign References:
| CN110287238A | 2019-09-27 | |||
| CN107480258A | 2017-12-15 | |||
| CN105138641A | 2015-12-09 | |||
| CN105975519A | 2016-09-28 | |||
| CN110070100A | 2019-07-30 | |||
| CN105426907A | 2016-03-23 | |||
| US20030004902A1 | 2003-01-02 |
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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