Wireless Clamping Monitoring with Redundant Sensor Transmission
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Solution Overview
Problem
Existing clamping devices lack reliable monitoring systems to ensure secure clamping of workpieces, as they fail to accurately detect and transmit clamping quality parameters without data lines, leading to potential errors in transmission and clamping force measurement.
Innovation Solution
A monitoring arrangement with at least two sensors for independent detection of clamping quality and a redundant transmission system using two independent microprocessor units to prepare and transmit measurement data, ensuring error detection and reliable communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless transmission is used to transmit clamping parameters, then data transmission convenience is improved, but transmission reliability deteriorates due to potential errors
Solution Approach 1:
The patent implements feedback mechanisms where sensors continuously monitor clamping parameters and transmit data wirelessly to control systems. The system receives feedback signals to verify successful transmission and retransmits data if errors occur, ensuring reliable communication while maintaining wireless convenience.
Solution Approach 2:
The patent employs preliminary error detection and correction coding in the wireless transmission system. Before data is transmitted, checksum calculations and error correction codes are prepared in advance, allowing the system to detect and correct transmission errors without requiring manual intervention.
2Device complexity
If a single sensor is used to detect clamping parameters, then device complexity is reduced, but measurement reliability deteriorates due to undetected errors
Solution Approach 1:
The patent distributes multiple sensors at different locations on the clamping device to monitor various clamping points. Each sensor provides localized measurement data, and the system cross-validates readings from different sensors to ensure measurement accuracy and detect anomalies.
Solution Approach 2:
The patent implements redundant sensor systems where backup sensors are pre-positioned to take over if primary sensors fail. This beforehand cushioning ensures continuous reliable measurement even when individual sensors malfunction, without requiring complex real-time fault detection systems.
3Reliability
If multiple sensors and redundant transmission systems are implemented, then measurement and transmission reliability are improved, but device complexity increases
Solution Approach 1:
The patent combines multiple sensor signals and transmission channels into a unified processing system. The control system integrates data from multiple sensors and transmission paths, using centralized processing to reduce overall system complexity while maintaining the reliability benefits of redundancy.
Solution Approach 2:
The patent designs the monitoring system with multi-functional components that can perform multiple tasks. For example, the wireless transmission system can simultaneously transmit clamping force data, position information, and error status, reducing the need for separate dedicated systems for each function.
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
The solution enables reliable detection and secure transmission of clamping quality parameters, reducing errors in clamping force measurement and ensuring secure operation of processing machines by cross-comparing measurement data and providing redundant processing.
Implementation Method 1
The first sensor is designed and arranged on the chuck in such a way that material-elastic deformations of the chuck can be measured when the pallet is clamped
Implementation Method 2
a transmitting device for the wireless transmission of measurement values is assigned to each signal processing unit
Data Source
AI summary
The invention relates to a monitoring arrangement (12) for monitoring the clamping quality of a workpiece carrier clamped in a clamping device (3, 40, 49) as well as a clamping system with clamping device (3, 40, 49) and such a monitoring arrangement (12). The monitoring arrangement comprises at least two sensors (A1-A4) for the independent detection of the clamping quality of a clamped workpiece carrier or workpiece. The monitoring arrangement also comprises a transmitting device (14) and a receiving device (21), wherein the transmitting device (14) is constituted such that it transmits the determined or calculated parameter or parameters redundantly to the receiving device (21).