RF Sensing Controller With Outcome-Based Rate Adjustment
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Solution Overview
Problem
Radiofrequency-based sensing systems experience network congestion and performance deterioration due to the transmission of RF signals to external devices, leading to increased collision probability and limited detection areas.
Innovation Solution
A method and system for reconfiguring RF-based sensing by adjusting the transmission rates based on sensing outcomes, specifically reducing the second transmission rate when a user's presence is detected, and optionally adjusting the first transmission rate to further reduce network traffic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If radiofrequency signals are transmitted to external devices for processing, then sensing capability is improved, but network congestion increases and communication performance deteriorates
Solution Approach 1:
The patent applies dynamic transmission rate adjustment based on sensing outcomes. When a user is detected, the transmission rate is reduced to minimize network congestion. When no user is present, the transmission rate is increased to maximize detection coverage. This dynamic adaptation resolves the contradiction between maintaining sensing capability and reducing network traffic volume.
Solution Approach 2:
The patent changes the transmission rate parameter based on sensing conditions. By monitoring sensing outcomes and adjusting the transmission rate accordingly, the system optimizes the balance between sensing performance and network load, transforming a static transmission system into one that adapts to real-time conditions.
2Area of stationary object
If transmission rate is increased to improve detection coverage, then number of detection areas increases, but collision probability increases and network performance deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where sensing outcomes are used to adjust transmission rates. The system continuously monitors detection results and modifies transmission behavior accordingly, creating a closed-loop control system that prevents collisions while maintaining detection coverage.
Solution Approach 2:
The transmission rate is dynamically adjusted based on real-time sensing conditions. When detection areas are active, the system reduces transmission rates to minimize collisions. When areas are inactive, it increases transmission rates to expand coverage, thereby dynamically optimizing the trade-off between detection area and collision probability.
3Speed
If continuous transmission is maintained to ensure real-time sensing, then sensing responsiveness is improved, but energy consumption increases and network resources are wasted
Solution Approach 1:
The patent transitions from continuous transmission to periodic transmission based on sensing outcomes. When no user is detected, the system reduces transmission frequency to conserve energy. When a user is detected, it increases transmission frequency to maintain responsiveness. This periodic action pattern optimizes the balance between sensing responsiveness and energy consumption.
Solution Approach 2:
The transmission rate parameter is changed based on sensing conditions to optimize energy usage. By adjusting the transmission rate according to whether users are present or not, the system maintains real-time sensing capability when needed while significantly reducing energy consumption during idle periods.
Data Source
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AI summary
A method of reconfiguring a radiofrequency-based sensing system comprising a transmitter node arranged for transmitting radiofrequency signals at a first transmission rate and a receiver node arranged for receiving the transmitted radiofrequency signal, wherein an external device, external to the transmitter/receiver node, is arranged for processing the radiofrequency signals for radiofrequency-based sensing, wherein the method comprises collecting the received radiofrequency signals at a collector node, transmitting, at a second transmission rate, the collected radiofrequency signals to the external device for processing, receiving a sensing outcome based on the processing from the external device, and adjusting the second transmission rate based on the received sensing outcome.