Adaptive RF Position Detection Power Management
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Solution Overview
Problem
Existing RF-based indoor position detection systems face challenges in achieving accurate and reliable position detection while optimizing power consumption, particularly for portable devices used in indoor environments where signal distortions and power management are critical.
Innovation Solution
A system comprising a transmitting unit, a receiving unit, and a control device with a distance measurement quality assessment unit and a power consumption optimizing unit that adapts transmitting parameters, such as power, based on a distance measurement quality indicator to maintain measurement accuracy while minimizing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If transmitting power is increased to improve distance measurement accuracy in indoor environments, then measurement precision is improved, but power consumption increases
Solution Approach 1:
The transmitting power is made dynamic rather than static. The control device continuously monitors distance measurement quality indicators and automatically adjusts the transmitting power level accordingly. When measurement quality is sufficient, power is reduced to save energy; when quality degrades, power is increased to maintain accuracy, creating an adaptive power management system
Solution Approach 2:
The system changes the transmitting power parameter based on measured distance and quality indicators. By monitoring the quality of distance measurements and adjusting the power parameter in response, the system optimizes the balance between measurement accuracy and power consumption, avoiding both excessive power usage and insufficient measurement quality
2Use of energy by moving object
If transmitting power is reduced to optimize power consumption, then power consumption decreases, but distance measurement accuracy deteriorates
Solution Approach 1:
The system implements a feedback mechanism where the quality of distance measurements is continuously monitored and fed back to the control device. This feedback loop enables the system to detect when measurement quality degrades and automatically increase transmitting power to restore accuracy, ensuring measurement quality is maintained while minimizing power consumption
Solution Approach 2:
The transmitting power is dynamically adjusted based on real-time measurement quality assessment. Rather than using a fixed low power setting, the system adapts power levels according to actual measurement needs, maintaining accuracy only when necessary and consuming minimal power when measurements are already of sufficient quality
3Measurement precision
If RF signals are transmitted continuously to maintain position detection accuracy, then measurement precision is improved, but power consumption increases
Solution Approach 1:
Instead of continuous transmission, the system uses periodic transmission of RF signals for distance measurement. The control device determines optimal measurement intervals and transmits signals only at these intervals, reducing overall power consumption while maintaining sufficient position detection accuracy through strategic periodic updates rather than continuous monitoring
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 enhances the accuracy and reliability of RF-based distance measurement while optimizing power consumption, enabling longer operation times for portable devices and reducing the impact of signal distortions in indoor environments.
Implementation Method 1
at least one transmitting unit (12) arranged for transmitting an electromagnetic wave signal in the RF range
Implementation Method 2
at least one receiving unit (14) arranged for receiving an electromagnetic wave signal in the RF range
Data Source
AI summary
The present invention relates to a system for position detection, implementing RF-based distance measurement, the system comprising at least one transmitting unit (12) arranged for transmitting an electromagnetic wave signal in the RF range, at least one receiving unit (14) arranged for receiving an electromagnetic wave signal in the RF range, wherein the transmitting unit (12) is arranged to transmit an electromagnetic wave signal specifically formed for distance measurement, and wherein the receiving unit (14) is arranged to receive the electromagnetic wave signal transmitted by the transmitting unit (12) in a direct or mediate fashion, at least one control device (30) for distance measurement based on transmitted signal information and received signal information, the control device (30) further comprising a distance measurement quality assessment unit (32), and a power consumption optimizing unit (34), wherein the distance measurement quality assessment unit (32) is arranged to derive a distance measurement quality indicator, based on distance measurement results, and wherein the power consumption optimizing unit (34) is arranged to adapt at least one transmitting parameter, based on the quality indicator.