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A wireless signal strength anomaly detection method based on density core

A wireless signal strength and anomaly detection technology, which is applied in the identification of patterns in signals, instruments, complex mathematical operations, etc., can solve problems such as limiting the application of algorithms, and achieve the effects of enhancing method performance, accurate identification, and reducing use costs.

Active Publication Date: 2022-08-02
CHONGQING UNIV
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  • Application Information

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Problems solved by technology

However, the existing density-based outlier detection algorithms, such as the LOF outlier detection algorithm, also require the user to set the parameters of the density calculation and the number of outliers, that is, there is a top-n problem, which also limits the application of the algorithm

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  • A wireless signal strength anomaly detection method based on density core
  • A wireless signal strength anomaly detection method based on density core
  • A wireless signal strength anomaly detection method based on density core

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Embodiment Construction

[0049] In order to illustrate the process, technical solutions and advantages of the present invention, the present invention will be further introduced below with reference to the accompanying drawings.figure 1 It is a schematic diagram of the transmitter engineering parameters, figure 2 is the positional relationship diagram of the transmitter and the target area, image 3 The distribution of the sample data set of the present invention after preprocessing and dimensionality reduction. Figure 4 Be the flow chart of the present invention, specifically include:

[0050] Step 1, data preprocessing

[0051] The data parameters include: cell number, the X coordinate of the grid where the transmitter is located, the Y coordinate of the grid where the transmitter is located, the height of the transmitter, the horizontal direction angle of the transmitter, the vertical electrical downtilt angle of the transmitter, the vertical mechanical downtilt angle of the transmitter, and the...

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Abstract

The invention discloses a method for detecting abnormality of wireless signal strength based on density core, which comprises the following steps: 1. preprocessing data; 2. searching for natural neighbor structure of data set; 4. Calculate the outlier factor and outlier factor threshold according to the weighted density of natural neighbors of each data object; 5. Extract outlier points through the outlier factor and threshold. This method fully integrates the distribution of the data objects and their natural neighbors, and can adapt to the situation where there are both dense and sparse areas of mobile phone users. It can automatically detect abnormal data of wireless signals.

Description

technical field [0001] The invention relates to the field of detection of abnormal wireless signal strength, in particular to a method for detecting abnormal wireless signal strength based on a density core. Background technique [0002] With the development of wireless communication technology, the number of mobile phone users has grown rapidly. According to data from the National Bureau of Statistics, as of 2020, the number of mobile Internet users in my country has exceeded 980 million. With the growth of mobile phone users, users' demands for wireless signal quality are also increasing, especially for wireless signal strength. If the signal strength is not enough, the communication operator will select a suitable area to add base stations. At present, the method of communication operators for the abnormal signal strength of the established base station area is mainly through the feedback of mobile phone users, or the staff of the communication operator manually derives ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06F17/18
CPCG06F17/18G06F2218/02G06F2218/12
Inventor 查永放张玉芳熊忠阳
Owner CHONGQING UNIV