RTLS Reference Phase Offset Table for RF Interference
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Solution Overview
Problem
Real-time location systems (RTLS) face challenges in physically and radio frequency (RF) challenged environments due to interference and blockages, leading to reduced accuracy and system failures.
Innovation Solution
The system generates a suspended reference phase offset table by calculating and storing reference phase offsets during periods of low interference, and dynamically adjusts for environmental changes and configuration issues to improve location accuracy and system reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system continuously calculates reference phase offsets in real-time, then location updates are maintained, but accuracy deteriorates due to RF interference and physical blockages in challenging environments
Solution Approach 1:
The system performs preliminary actions by calculating and storing reference phase offsets during periods of low interference before actual location calculations are needed. This advance preparation ensures that accurate reference data is available even when real-time conditions are degraded by RF interference or physical blockages, thereby maintaining both reliability and precision.
Solution Approach 2:
The system implements beforehand cushioning by creating a suspended reference phase offset table that stores pre-calculated reference offsets. This cushioning mechanism protects against future interference events by providing a buffer of accurate reference data that can be retrieved when conditions deteriorate, ensuring continuous accurate location calculations without real-time recalibration.
2Measurement precision
If the system generates suspended reference phase offset tables during low interference periods, then location accuracy is improved, but system complexity increases due to additional processing and storage requirements
Solution Approach 1:
The system performs preliminary calculations of reference phase offsets during low-interference periods and stores them in a suspended reference phase offset table. This advance computation reduces the complexity of real-time processing by pre-computing reference data that can be directly applied during location calculations, avoiding the need for complex real-time interference compensation algorithms.
Solution Approach 2:
The system creates a simplified representation (copy) of the complex real-time reference phase relationships by storing reference offsets in a suspended table. This copying approach simplifies the system by replacing complex continuous reference maintenance with simpler discrete offset values that can be directly applied during location calculations, reducing both processing and storage complexity.
3Adaptability or versatility
If the system dynamically adjusts for environmental changes, then adaptability is improved, but processing time increases due to continuous monitoring and adjustment operations
Solution Approach 1:
The system performs preliminary environmental assessment and reference offset calculation during low-interference periods before actual location processing begins. By pre-adapting to environmental conditions and pre-calculating reference offsets, the system reduces the processing time needed during active operation, as the heavy computational tasks are completed in advance when environmental conditions are stable.
Solution Approach 2:
The system implements dynamic adaptability by maintaining a suspended reference phase offset table that can be updated when environmental conditions change. This dynamic mechanism allows the system to adapt to environmental variations without requiring continuous real-time recalibration, as the reference table can be updated periodically when conditions permit, reducing overall processing time while maintaining adaptability.
Data Source
AI summary
An example method includes receiving environmental data from a plurality of receivers; calculating, using a processor, an environmental offset based on the environmental data, wherein the environmental offset is operable to adjust a reference phase offset; and dynamically adjusting the environmental offset in response to a detected change in the environmental data.