Wireless Access Point Abnormal Device Detection

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Solution Overview

Problem

Wireless network security is compromised due to password sharing, making it difficult for administrators to detect unauthorized access without constant backend monitoring, leading to insecurity and poor user experience.

Innovation Solution

A method and apparatus for a wireless access point to query an abnormally accessing device list, determine if the number of abnormal devices exceeds a threshold within a set time period, and transmit a prompt message to the administrator when compromised, using signal intensity, access count, or access time criteria to identify abnormal devices and dynamically set or acquire a threshold based on normal access patterns.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If password sharing software is used to share wireless network access, then ease of operation is improved, but network security is compromised

Engineering Contradiction:
Improvepassword sharing capabilityVSAvoidnetwork security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system performs preliminary detection by monitoring access patterns before significant security breaches occur. It establishes baseline access characteristics and proactively identifies abnormal access behaviors, allowing administrators to take preventive actions before passwords are widely compromised.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements continuous feedback loops where access information is collected, analyzed, and used to generate alerts. When abnormal access patterns are detected, the system provides feedback to administrators through notifications, enabling them to respond to security threats in real-time based on objective data.

Inventive Principle:
Principle #23Feedback

2Measurement precision

If administrators manually monitor network access to detect password sharing, then measurement precision is improved, but loss of time increases

Engineering Contradiction:
Improvedetection accuracyVSAvoidmonitoring time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system enables self-service monitoring where the wireless access point automatically collects, analyzes, and evaluates access information without requiring administrator intervention. The system autonomously identifies abnormal access patterns and generates alerts, freeing administrators from manual monitoring tasks while maintaining high detection accuracy.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical monitoring with automated electronic detection systems. The wireless access point uses embedded processing capabilities to automatically analyze access patterns, substitute human administrators with algorithmic detection mechanisms that operate continuously without fatigue or time constraints.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If automated detection systems are implemented to monitor access patterns, then productivity is improved, but device complexity increases

Engineering Contradiction:
Improvedetection efficiencyVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The wireless access point is designed with multi-functionality, serving both as a network access device and a security detection system. By integrating detection capabilities into the existing access point infrastructure, the system avoids adding separate dedicated monitoring devices, thereby limiting complexity increases while maintaining high detection productivity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system uses access information as an intermediary to bridge network operations and security detection. Rather than directly monitoring complex cryptographic protocols or device identities, the system analyzes intermediate access patterns such as connection timestamps, data transmission volumes, and access frequencies, simplifying the detection mechanism while maintaining effectiveness.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3328022B1Managing wireless network connection
Publication Date: 2022.11.16 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • EP3328022B1 patent drawingFigure 1A~1B
  • EP3328022B1 patent drawingFigure 1C~2A
  • EP3328022B1 patent drawingFigure 2B~3A

AI summary

A method and an apparatus for managing a wireless network connection are provided. According to an example of the method, a wireless access point may determine whether a number of abnormal mobile devices exceeds a number threshold within a first set time period when the number of abnormal mobile devices access a wireless network via the wireless access point, and the wireless access point transmits a prompt message to a preset device corresponding to the wireless access point when the number of abnormal mobile devices exceeds the number threshold and the prompt message is configured to prompt that access information of the wireless access point is compromised.