Integrated WiFi Sensing Device Placement
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Solution Overview
Problem
Existing WiFi sensing systems are limited by the placement and number of transmitter and receiver devices, requiring a minimum distance between them to detect entities, which restricts coverage and effectiveness due to physical constraints of the monitored area.
Innovation Solution
A WiFi sensing device that combines both transmitter and receiver components in a single housing, allowing for the detection of backscattered signals and requiring only a single power source, thereby enhancing coverage and removing placement constraints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate transmitter and receiver devices are used in WiFi sensing systems, then signal detection capability is improved, but device placement flexibility deteriorates due to minimum distance requirements and power source constraints
Solution Approach 1:
The patent combines the transmitter and receiver into a single integrated device housing. This merging eliminates the need for separate transmitter and receiver devices, allowing the system to detect backscattered signals from entities in the monitored area without requiring minimum distance separations between multiple devices. The integrated design provides both transmission and reception functions in one unit, improving placement flexibility while maintaining detection capability.
2Area of stationary object
If multiple transmitter and receiver devices are deployed to increase coverage, then sensing coverage area is improved, but system complexity and power requirements worsen
Solution Approach 1:
The integrated device performs multiple functions - it acts as both a transmitter for sending WiFi signals and a receiver for detecting backscattered signals. This multi-functionality reduces the total number of devices needed in the system, simplifying deployment and reducing overall system complexity while still providing comprehensive sensing coverage through the single device's dual capabilities.
3Measurement precision
If separate transmitter and receiver devices are used, then signal detection accuracy is improved, but ease of installation and power provisioning deteriorates
Solution Approach 1:
By integrating the transmitter and receiver into a single device, the patent simplifies installation processes. Only one device needs to be installed and powered, eliminating the complexity of coordinating multiple separate devices. The single housing contains all necessary components (transmitter, receiver, processing unit), making deployment straightforward while maintaining signal detection accuracy through the integrated design.
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
This configuration improves the range of coverage and effectiveness of the sensing system by enabling the monitoring of movement in the surrounding area without the limitations imposed by the physical placement of separate transmitter and receiver devices.
Implementation Method 1
a receiver component configured to detect backscattered WiFi signals, the backscattered WiFi signals having been reflected by a surface in the place after transmission from the transmitter component
Data Source
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AI summary
A sensing system for monitoring a place is provided. The sensing system comprises a sensing device for monitoring a place and one or more processors. The sensing device comprises a transmitter component configured to transmit WiFi signals and a receiver component configured to detect backscattered WiFi signals, the backscattered WiFi signals having been reflected by a surface in the place after transmission from the transmitter component. The one or more processors are configured to extract signal characteristics from the detected WiFi signals, process the extracted signal characteristics, and compare the extracted signal characteristic to extracted signal characteristics of a historic backscattered WiFi signal received at the receiver component to monitor the place.