Client Device Wi-Fi Presence Detection via Host Table Extraction

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Solution Overview

Problem

Existing methods for monitoring devices connected to a Wi-Fi network are complex and inefficient, requiring users to scroll through multiple devices to check if a specific device is present or absent, and do not provide timely information on device association or disassociation status, posing security and usability issues.

Innovation Solution

A client device system that utilizes a network device's host table to detect and display device association status, allowing users to create a monitored list of devices and receive indications on their presence or absence, with the ability to customize which devices are monitored and provide time information on association or disassociation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If users manually check each device in the network to determine presence or absence, then device monitoring can be performed, but the process becomes complex and time-consuming

Engineering Contradiction:
Improvedevice presence detection accuracyVSAvoidmonitoring process complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts the specific device presence detection task from the general network device list by creating a monitored devices list that contains only selected devices. This allows the system to focus monitoring resources on specific devices of interest rather than requiring users to check every device in the network, thereby reducing complexity while maintaining detection accuracy.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces an intermediary monitored devices list that acts as a filter between the complete network device list and the final presence detection results. This intermediary structure simplifies the monitoring process by pre-defining which devices should be tracked, eliminating the need for manual traversal of the entire network device list.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of information

If comprehensive device monitoring is implemented, then complete network visibility is achieved, but response time for detecting device association status is delayed

Engineering Contradiction:
Improvedevice status information completenessVSAvoiddevice status detection time
Core Design Contradiction:
Loss of informationVSLoss of time

Solution Approach 1:

The patent extracts only the critical presence/absence status information from complete device monitoring data by maintaining a focused monitored devices list. This selective approach provides timely notification for specific devices without the processing overhead of monitoring all network devices, thus reducing detection time while preserving essential status information.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies partial monitoring by tracking only selected devices in the monitored devices list rather than all devices in the network. This partial action approach provides sufficient information for most use cases while significantly reducing the time required to detect device association status changes.

Inventive Principle:
Principle #16Partial or excessive action

3Reliability

If all devices in the network are monitored, then complete security coverage is provided, but system resources are wasted on unnecessary monitoring

Engineering Contradiction:
Improvenetwork security reliabilityVSAvoidmonitoring resource consumption
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent extracts and monitors only the devices that are actually needed for security purposes by creating a customized monitored devices list. This selective monitoring approach maintains security reliability for critical devices while eliminating the waste of system resources on monitoring devices that do not require attention.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies local quality by assigning different monitoring priorities to different devices based on their importance. Critical devices in the monitored devices list receive continuous attention with high reliability, while other devices are excluded from monitoring, thereby optimizing resource allocation and reducing energy consumption.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20220182964A1Network presence detection
Publication Date: 2022.06.09 ARRIS ENTERPRISES LLC
  • US20220182964A1 patent drawing
  • US20220182964A1 patent drawing
  • US20220182964A1 patent drawing

AI summary

Aspects of the present disclosure are drawn to a client device for use with a Wi-Fi network device, a second client device, and a third client device. The Wi-Fi network device has a host table stored therein. The host table lists the second client device and the third client device. The client device is able to associate with the Wi-Fi network device, identify the second client device, and identify the third client device. The client device also creates a monitored devices list of client devices associated with the Wi-Fi network based on the host table. The client device also adds the second client device to the monitored devices list and determines, from the host table, whether the second client device is currently associated with the Wi-Fi network device. The client device additionally provides an indication when the second client device is currently associated with the Wi-Fi network device.