Wireless Network Access Control Using Directional Device Detection
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Solution Overview
Problem
Existing methods for authenticating terminal devices to wireless networks are inaccurate due to the lack of consideration for environmental obstacles and varying signal strengths, leading to inefficient access control and user experience issues.
Innovation Solution
A method where directional devices within a predetermined area monitor wireless network access requests, enabling access only when all devices detect the request, eliminating the need for signal attenuation calculations and simplifying the access process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If signal attenuation calculation method is used for authentication, then automatic access can be achieved, but authentication accuracy deteriorates due to environmental obstacles and varying signal strengths
Solution Approach 1:
The patent replaces the mechanical signal attenuation calculation method with an electromagnetic wave-based detection method. Directional devices detect access request messages through electromagnetic wave monitoring, and the access point determines device location based on detection results from multiple directional devices, eliminating the need for signal strength calculations that are affected by environmental factors.
Solution Approach 2:
The patent introduces directional devices as intermediary detection elements between the access point and terminal devices. These directional devices monitor access request messages and provide detection feedback to the access point, which then makes authentication decisions based on the collective detection results, improving accuracy while maintaining automation.
2Reliability
If password input and authentication are required for network access, then network security is improved, but user experience deteriorates due to complicated operations
Solution Approach 1:
The patent enables terminal devices to automatically authenticate themselves to the network without user intervention. The authentication process occurs in the background through automated message exchange between the terminal device, directional devices, and access point, eliminating the need for users to manually input passwords while maintaining security.
Solution Approach 2:
The patent performs authentication actions before network access is granted. The access point receives detection feedback from directional devices, determines whether the terminal device is within the authorized area, and makes authentication decisions prior to allowing network connection, ensuring security while providing seamless user experience.
3Adaptability or versatility
If signal strength-based authentication is used, then access control can be implemented, but accuracy deteriorates because terminal devices with different signal strengths are treated differently regardless of location
Solution Approach 1:
The patent segments the authentication process into separate detection and decision-making components. Multiple directional devices independently detect access request messages, and the access point aggregates these detection results to determine authentication status. This segmentation eliminates the bias introduced by varying signal strengths at different locations.
Solution Approach 2:
The patent creates a universal authentication mechanism that works consistently across different locations and signal conditions. The directional devices and access point use a standardized detection and decision process that is not affected by terminal device signal strength variations, ensuring fair and accurate authentication for all devices within the authorized area.
Data Source
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AI summary
The present invention is applicable to the field of wireless communications technologies, and provides a method and system for controlling access of a terminal device to a wireless network. The method includes: receiving, by an access point device, a first wireless network access request message sent by a first terminal device, where the first wireless network access request message is used for requesting to access a wireless network; receiving, by the access point device, feedback information of one or more directional devices within a predetermined area, where the feedback information is used for indicating whether the directional device finds the first wireless network access request by monitoring; judging, by the access point device according to the received feedback information, whether N directional devices within the predetermined area all find the first access request message by monitoring; and if yes, enabling the first terminal device to access the wireless network, where the N is the number of the directional devices within the predetermined area. According to the present invention, a problem of inaccurate authentication judgement during access of a terminal device to a wireless network in a specific place in the prior art may be effectively solved.