Wireless Sensing Mesh Network for Hub-Free Reliability
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Solution Overview
Problem
Existing Wi-Fi sensing networks, particularly those with a hub-based topology, suffer from a single point of failure and inefficiencies in device configuration and management, limiting their scalability and adaptability for various applications.
Innovation Solution
A wireless sensing mesh network system comprising mesh devices that can operate as both transmitters and receivers, utilizing a configuration tool to form a mesh through environment sensing and selection based on signal quality, allowing for flexible device pairing and dynamic reconfiguration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hub-based topology is used for Wi-Fi sensing networks, then device configuration and management is simplified, but the system reliability deteriorates due to single point of failure
Solution Approach 1:
The patent segments the centralized hub-based architecture into a distributed mesh network where each device operates autonomously. Multiple transmission paths are created by allowing devices to communicate directly with each other, eliminating the single point of failure while maintaining simplified configuration through automated mesh formation protocols.
2Ease of manufacture
If existing Wi-Fi devices are used for sensing, then hardware cost is reduced, but network performance deteriorates due to lack of dedicated sensing optimization
Solution Approach 1:
The patent enables existing Wi-Fi devices to perform dual functions: standard communication and sensing operations. The system extracts Channel State Information (CSI) from regular Wi-Fi packets, allowing unmodified devices to contribute to sensing while maintaining their primary communication function, thus avoiding additional hardware costs while preserving network performance.
3Device complexity
If CSI is collected from regular Wi-Fi packets, then additional specialized signals are eliminated, but measurement precision deteriorates due to signal interference
Solution Approach 1:
The patent converts the potential harm of using existing Wi-Fi traffic (which may be interfered with) into a benefit by leveraging the ubiquity of these packets. Instead of adding specialized sensing signals that could be blocked or ignored, the system uses ordinary communication packets that already traverse the environment, turning regular network traffic into a reliable sensing resource.
4Adaptability or versatility
If a mesh network is formed dynamically, then adaptability to different applications is improved, but configuration complexity worsens
Solution Approach 1:
The patent implements self-service through automated mesh formation where devices autonomously discover each other, evaluate signal quality, and establish optimal transmission paths without manual configuration. The system automatically adapts to different applications by selecting appropriate devices based on their sensing capabilities and environmental conditions, eliminating configuration complexity while maintaining high adaptability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides a scalable, configurable, and adjustable architecture for sensing, enhancing reliability and adaptability across different use cases such as security monitoring and building automation without degrading network performance.
Implementation Method 1
at least one active transmitter device which is controllable to transmit wireless signals at a predetermined frequency
Data Source
AI summary
A sensing system for monitoring a place comprising a plurality of mesh devices located in the place. Each mesh device comprises a transmitter component which, when activated, configures the mesh device as a transmitter, and a receiver component which, when activated, configures the mesh device as a receiver. At least two of the mesh devices have activated receiver components. Each mesh device having an activated receiver component is configured, by a configuration tool, to receive sensed data for processing from at least one other selected mesh device of the plurality of mesh devices. The selected mesh device having been selected by the configuration tool and having an activated transmitter component. The sensed data is generated from a wireless signal transmitted by the transmitter device and received by each receiver device over a wireless communication medium.