Sensor Time Stamp Interpolation for Real-Time Format Compatibility
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Solution Overview
Problem
Existing sensor systems face challenges in accurately handling time stamps with limited resolution and format compatibility, leading to discrepancies between set and actual time stamps, which complicates data processing and analysis.
Innovation Solution
A time stamp interpolation method and system that includes an acquisition unit and an interpolation processing unit to acquire and correct time stamps using linear interpolation, allowing for real-time processing and maintaining monotonicity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If time stamp correction is performed using arithmetic operations, then time stamp accuracy is improved, but time stamp resolution is limited by floating point precision and cannot be received by general servers
Solution Approach 1:
The patent introduces an intermediary interpolation processing unit that bridges the gap between high-precision corrected time stamps and standard server time stamp formats. This unit performs linear interpolation to convert corrected time stamps into values that can be received by general servers while maintaining accuracy, thus resolving the contradiction between precision and compatibility.
Solution Approach 2:
The patent changes the parameter representation of time stamps through linear interpolation. By transforming corrected time stamps (which have high precision but limited compatibility) into interpolated time stamp values (which maintain accuracy while being compatible with standard servers), the system resolves the contradiction between measurement precision and adaptability.
2Measurement precision
If corrected time stamps are used directly, then time stamp accuracy is improved, but data format compatibility is lost because corrected time stamps differ from set time stamps defined in data formats
Solution Approach 1:
The interpolation processing unit acts as an intermediary that converts corrected time stamps into values compatible with standard data formats. It performs linear interpolation to generate time stamp values that can be directly used in data transmissions to servers, thus maintaining both accuracy and format compatibility.
Solution Approach 2:
The patent replaces the direct use of corrected time stamps with an interpolated time stamp generation mechanism. This substitution allows the system to maintain the benefits of time stamp correction while achieving compatibility with standard data formats, resolving the contradiction between precision and ease of manufacture.
3Productivity
If real-time data processing is performed, then processing speed is improved, but time stamp errors increase due to limited resolution and format conversion issues
Solution Approach 1:
The patent performs preliminary linear interpolation of corrected time stamps before data processing. By pre-converting corrected time stamps into interpolated values that are compatible with standard formats and maintain accuracy, the system enables real-time processing without introducing time stamp errors, thus resolving the contradiction between productivity and reliability.
Data Source
AI summary
A method for interpolating time stamps added to respective data transmitted and received in a sensor system is provided. The method includes acquiring a first data received at an arbitrary time and a first time stamp associated with the first data, acquiring a second data received before the first data and a second time stamp associated with the second data, performing linear interpolation on the basis of the first time stamp, a value of the first data, the second time stamp, and a value of the second data, to acquire values of data at set time stamps requested by the sensor system, and outputting the values of data associated with the respective set time stamps to another device involved in the sensor system.