Angular Sensor Position Data Transfer Bandwidth Reduction
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Solution Overview
Problem
Existing angular sensor data transfer methods are susceptible to interference and require high bandwidth, making them unreliable and inefficient, especially in environments with magnetic field radiation.
Innovation Solution
A method for cyclic digital transfer of position values from angular sensors that limits the value range to prevent whole revolutions or periods, allowing for data compression and reduced bandwidth requirements, while enabling reliable monitoring of acceleration and error detection by comparing transferred values to estimated positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the complete position value is transferred cyclically, then the position information is complete and accurate, but the bandwidth requirement is high and data transmission is inefficient
Solution Approach 1:
The patent extracts only the essential change information (delta value) from the complete position data, transmitting only what has changed rather than the entire position value. This reduces data quantity while preserving the necessary position information for control purposes.
Solution Approach 2:
The patent changes the parameter being transmitted from absolute position values to relative position changes (delta values). This transformation reduces the data volume significantly while maintaining the ability to reconstruct complete position information at the receiving end.
2Quantity of substance
If the value range is limited to prevent whole revolutions, then the data stream is compressed and bandwidth is reduced, but the position measurement range is restricted
Solution Approach 1:
The patent performs preliminary wrapping of the position value into a limited range before transmission. By pre-processing the position data to fit within a standardised value range, the system enables efficient data compression while maintaining the ability to track larger overall movements through cumulative delta values.
3Reliability
If interference-resistant transfer is implemented through value range limitation, then reliability in magnetic fields is improved, but the system complexity increases due to evaluation and correction mechanisms
Solution Approach 1:
The patent implements feedback mechanisms where the evaluation unit monitors transmitted position data, detects inconsistencies caused by interference, and triggers correction procedures. This feedback loop ensures reliable operation in magnetic fields while keeping the complexity manageable through systematic error detection and correction.
Solution Approach 2:
The patent applies preliminary error detection and correction measures by establishing expected value ranges and preparing correction mechanisms in advance. This allows the system to handle interference reliably without requiring complex real-time processing during normal operation.
Data Source
AI summary
A method and device for the cyclic digital transfer of a position value of a moving object having inertial mass, the value range of the transferred position value being limited in such a way that no whole revolution or, in the case of a linear motion, other complete period that is conditional upon mechanical conditions is mappable, and the actual position is generated by detecting, in an evaluation unit, instances of the value range being exceeded.