Rotary Measurement Signal Processing for Error-Resistant Diagnostics
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Solution Overview
Problem
Existing rotary measuring devices and systems suffer from high error susceptibility and inadequate diagnostic capabilities during signal processing, particularly in vehicles.
Innovation Solution
A signal processing device for rotary measuring devices that generates temporally successive message sequences, where each message is of a predetermined type and assigned to spatially adjacent measurement features, with varying selection positions for different message sequences to enhance feature acquisition and diagnostics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional message sequences are used with fixed selection positions, then the signal processing is simple, but error susceptibility increases and diagnostic capabilities are inadequate
Solution Approach 1:
The patent applies dynamics by making the selection position variable instead of fixed. The selection position changes depending on the message sequence number, allowing the system to dynamically adjust which measurement feature is selected for each message sequence. This dynamic approach reduces error susceptibility by avoiding repeated selection of the same potentially defective feature while maintaining manageable complexity through systematic variation.
Solution Approach 2:
The patent changes the parameter of selection position from a constant value to a variable that depends on the message sequence number. By modifying this parameter dynamically across different message sequences, the system improves reliability by distributing selections across multiple measurement features, thereby reducing the impact of any single defective feature while keeping the processing logic relatively simple.
2Adaptability or versatility
If conventional message sequences with fixed selection positions are used, then device complexity is low, but diagnostic capabilities are inadequate
Solution Approach 1:
The dynamic selection position enables the system to adaptively diagnose different measurement features across multiple message sequences. By varying the selection position systematically, the system can identify patterns and anomalies in specific features, thereby enhancing diagnostic capabilities without requiring complex additional hardware or processing architecture.
Solution Approach 2:
The patent implements feedback by using the message sequence number to determine the selection position, creating a systematic pattern that allows diagnostic information to be extracted over time. This feedback mechanism enables the system to accumulate diagnostic data across multiple sequences, improving adaptability and diagnostic versatility while maintaining relatively simple processing logic.
3Reliability
If the same measurement feature is repeatedly selected, then processing is consistent, but error susceptibility increases due to potential feature defects
Solution Approach 1:
The dynamic selection position systematically varies across message sequences, preventing repeated selection of the same measurement feature. This approach improves measurement accuracy by distributing selections across multiple features, reducing the risk that a single defective feature will cause continuous errors. The systematic variation also accelerates error detection by enabling quicker identification of defective features through pattern recognition.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces error susceptibility and improves diagnostic capabilities, ensuring accurate and reliable detection of measurement features, enhancing vehicle safety and reliability.
Implementation Method 1
With a magnetic measuring principle, a voltage change can be output, in particular using a Hall sensor, which is characteristic of the current position of a measuring body relative to the Hall sensor
Implementation Method 2
a voltage change can be output, in particular using a Hall sensor, which is characteristic of the current position of a measuring body relative to the Hall sensor
Data Source
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Figure 3A
AI summary
The invention relates to a signal processing device (260) for a rotary measuring device (200), preferably for a vehicle (1000), comprising a rotary measuring sensor (220) and a rotary measurement body (240). The rotary measurement body (240) has a number (AM) of measurement features (250), and the signal processing device (260) is designed to provide chronologically successive message sequences (110), wherein a message sequence (110) has a number (A) of successive messages (120) such that chronologically successive messages (120) are assigned to locally adjacent measurement features (250) which interact with the rotary measuring sensor (220) one after the other chronologically and such that each message (120) is provided in a message type (NT, C, T, P) selected from a specified number of message types, and a message (120) arranged at a selection position (PSF) of the message sequence (110) is a message of a specified type (123) which describes a feature property (280) of the assigned measurement feature (250). According to the invention, the successive message sequences (110) have a first and a second message sequence (110.1, 110.2), and the signal processing device (260) is designed to select the selection position (PSF) for the message sequence (110) such that a first selection position (PSF1) for a first message of a specified type (123.1) is provided for the first message sequence (110.1) and a second selection position (PSF2) for a second message of the same specified type (123.2) is provided for the second message sequence (110.2).