Wireless Positioning Device Moving Path Smoothing
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Solution Overview
Problem
Existing wireless positioning technologies suffer from measurement errors and interference, leading to unnatural jumping phenomena in determining user equipment location, as they fail to effectively smooth the moving path.
Innovation Solution
A method and device that perform positioning with at least three wireless communication devices via a scanning frequency in cumulative time, calculate valid sampling positions by removing unreliable measurements, and determine the current position using a count value and smoothing threshold, applying averaging or interpolation methods to smooth the path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless positioning is performed using conventional methods, then positioning functionality is provided, but measurement errors and interference cause unnatural jumping phenomena in the determined position
Solution Approach 1:
The system performs preliminary actions by accumulating multiple positioning measurements over a predetermined time period before determining the final position. Instead of using a single measurement, the device collects a series of position data points and processes them collectively to eliminate errors and interference, thereby achieving smoother and more reliable position determination without natural jumping phenomena
Solution Approach 2:
The positioning system maintains continuous measurement and processing actions over time. By continuously accumulating position measurements at predetermined intervals and processing the entire sequence, the system ensures that no useful positioning information is lost and that the final position reflects the continuous movement pattern rather than isolated snapshots, eliminating jumping artifacts
2Measurement precision
If multiple positioning measurements are accumulated over time, then measurement errors can be reduced, but the time required to determine position increases
Solution Approach 1:
The system applies partial action by using a predetermined, optimized time period for accumulation that is sufficient to reduce measurement errors but not excessively long. This balanced approach collects enough measurements to achieve reliable error reduction while maintaining reasonable response time, avoiding both insufficient sampling and unnecessary delays
3Stability of the object's composition
If a smoothing process is applied to position data, then natural jumping phenomena are reduced, but the complexity of the positioning system increases
Solution Approach 1:
The positioning process is segmented into distinct stages: measurement accumulation, error identification, and position determination. By dividing the complex smoothing task into these manageable segments, the system achieves effective error reduction and path smoothing while maintaining clear processing logic and avoiding excessive overall complexity
Solution Approach 2:
The system introduces an intermediary processing step that analyzes the relationship between multiple measured positions and identifies erroneous data points before final position determination. This intermediary analysis acts as a mediator between raw measurements and final output, smoothing the path without requiring complex algorithms by using logical comparison and error detection
Data Source
AI summary
A moving path determining method, applied to a user equipment, the moving path determining method comprises performing positioning to at least three wireless communication devices via a scanning frequency in a cumulative time, to calculate a plurality of sampling positions; determining whether a measured distance value corresponding to each of the plurality of sampling positions of at least three wireless communication devices is less than a predetermined value or not; removing the sampling position corresponding to the measure distance value less than the predetermined value within the plurality of sampling positions, to obtain a plurality of valid sampling positions; calculating a count value of the plurality of valid sampling positions; and determining a current position of the user equipment according to the count value and a smoothing threshold.