Encoder Signal Resolution Conversion for Low-Resolution Interfaces
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Solution Overview
Problem
Systems requiring low encoder resolution often struggle to interface with high-resolution encoder outputs, such as in rescue systems or when dealing with high-frequency signals, as existing methods fail to effectively reduce resolution while maintaining accuracy.
Innovation Solution
A method and apparatus that utilize a processor and memory to execute algorithms that detect movement direction and generate reduced-resolution signals from high-resolution encoder outputs, incorporating a decoder component, modulo counter, and quadrature output component to divide counts into segments, ensuring compatibility with low-resolution interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a high-resolution encoder is used, then measurement precision is improved, but compatibility with low-resolution interfaces deteriorates
Solution Approach 1:
The patent introduces an intermediary device between the high-resolution encoder and the low-resolution interface. This intermediary receives the high-frequency quadrature encoder signals, processes them through algorithms that detect movement direction and generate reduced-resolution signals, and outputs compatible low-resolution signals to the interface-requiring component, thereby enabling compatibility without sacrificing the encoder's native resolution capability
Solution Approach 2:
The patent changes the parameter of signal resolution by processing the encoder output signals through computational algorithms. The system dynamically adjusts the resolution parameter by counting a specified number of input cycles and generating corresponding output cycles, effectively transforming high-resolution signals into low-resolution signals while maintaining the essential motion information
2Adaptability or versatility
If a low encoder resolution is used, then interface compatibility is improved, but measurement precision deteriorates
Solution Approach 1:
The patent replaces the need for a physically low-resolution encoder with a computational approach. Instead of using a mechanical encoder with fewer lines, the system uses a high-resolution encoder combined with software algorithms that simulate lower resolution output, thereby eliminating the need for multiple physical encoder configurations and maintaining measurement precision while achieving interface compatibility
3Measurement precision
If high-frequency encoder signals are generated, then measurement precision is improved, but system compatibility deteriorates
Solution Approach 1:
The patent employs periodic action by implementing a cyclic counting and signal generation mechanism. The system counts a specified number of input signal cycles and generates corresponding output cycles at a reduced frequency, creating a periodic transformation that maintains the essential motion information while adapting the signal frequency to be compatible with systems that cannot handle high-frequency inputs
Data Source
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AI summary
One or more embodiments are directed to an encoder configured to output a signal, and a computing device configured to receive the signal from the encoder and generate a reduced resolution version of the signal, the computing device is configured to transmit the reduced resolution version of the signal to a recipient.