Synchronous Sensor System for Multi-Carriage Position Accuracy
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Solution Overview
Problem
Existing position sensor systems for measuring elements moving along a motion path suffer from inaccuracies due to sequential detection of sensor signals, leading to measurement errors, especially when measuring elements move at different speeds or are influenced by external factors.
Innovation Solution
A sensor system with a processing device that synchronously detects sensor signals from multiple sensors arranged along a subsection of the motion path, minimizing delays and errors through simultaneous activation and processing of signals, allowing for precise position determination and speed measurement of measuring elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sequential detection of sensor signals is used, then device complexity is reduced, but measurement precision deteriorates due to measurement errors
Solution Approach 1:
The patent implements synchronous periodic sampling of sensor signals at defined sampling points along the motion path. All sensors are activated simultaneously at each sampling point to capture position data, eliminating sequential detection errors while maintaining structured signal processing through regular periodic intervals
Solution Approach 2:
The patent replaces sequential mechanical/electrical signal processing with a synchronous detection system where all sensors are triggered simultaneously. This substitution of the detection mechanism eliminates timing-related measurement errors while the central processing unit coordinates the synchronous activation and processes all signals in parallel
2Measurement precision
If synchronous detection of sensor signals is implemented, then measurement precision is improved, but device complexity increases due to coordination requirements
Solution Approach 1:
The patent employs a universal clock signal that serves multiple functions: it triggers all sensors simultaneously, coordinates the sampling process, and provides a reference for synchronous processing. This single multi-functional signal eliminates the need for separate synchronization mechanisms for each sensor, reducing overall system complexity while enabling precise synchronous detection
Solution Approach 2:
The patent introduces a central processing unit as an intermediary that coordinates all sensor activations and signal processing. This intermediary receives a clock signal, distributes synchronous trigger signals to all sensors, and collects their outputs for parallel processing, thereby managing synchronization complexity centrally while maintaining measurement precision
3Measurement precision
If sequential processing of sensor signals is used, then loss of time is reduced, but measurement precision deteriorates due to signal propagation time differences
Solution Approach 1:
The patent uses periodic synchronous sampling where all sensors are activated simultaneously at regular intervals along the motion path. This periodic simultaneous detection ensures that position measurements are captured at the same moment across all sensors, eliminating propagation time differences while maintaining efficient time-based processing through regular sampling intervals
Solution Approach 2:
The patent pre-defines sampling points along the motion path and synchronizes sensor activation to these predetermined locations. By preparing the sampling framework in advance and triggering all sensors simultaneously at each predefined point, the system eliminates timing uncertainties and propagation delays while maintaining efficient processing through pre-planned measurement intervals
Data Source
AI summary
A sensor system that simultaneously detects the positions of multiple movable carriages along a motion path. The sensor system includes a plurality of sensors arranged at least along a subsection of the motion path, wherein each sensor is designed for a contactless detection of a measuring element provided on each movable carriage. The sensor system also includes a processing device, which is connected electrically with the sensors and which is designed for a synchronous detection of sensor signals of the sensors.