Power Tool Position Tracking for Multi-Fastener Control
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Solution Overview
Problem
Existing power tools lack the ability to determine the success of multiple fastener applications and adjust control logic accordingly, failing to ensure precise and repeatable fastening operations.
Innovation Solution
Incorporating sensors and a controller to track the movement and position of the power tool, using techniques such as dead reckoning and machine learning to monitor and adjust fastening operations, ensuring completion and accuracy of multiple fastener applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If power tools use simple control logic for single fastener operations, then the device complexity is low, but the manufacturing precision and reliability of multiple fastener applications cannot be ensured
Solution Approach 1:
The system uses sensor data (accelerometer, gyroscope, magnetometer) to continuously monitor tool position and movement, providing feedback to the controller. This feedback loop enables the controller to determine when the tool has moved between fasteners and to verify completion of each fastening operation, ensuring precision across multiple fasteners without requiring complex manual intervention
Solution Approach 2:
The power tool system performs self-monitoring and self-correction by automatically tracking its own position through sensor data integration and dead reckoning. The controller autonomously determines operation completion and provides user notifications, eliminating the need for external monitoring equipment or complex operator procedures
2Reliability
If power tools determine success of each individual operation only, then the device complexity is low, but the reliability of entire multiple fastener application cannot be ensured
Solution Approach 1:
The controller continuously receives sensor data and provides feedback on the overall application progress. It determines when each fastener operation is complete and monitors the entire sequence, providing reliable confirmation that the complete multiple fastener application has been successfully completed, not just individual operations
Solution Approach 2:
The controller acts as an intermediary between the motor, sensors, and user interface. It processes sensor data, determines operation completion, and communicates status to the user, ensuring reliable tracking of the entire multiple fastener application process without requiring direct complex interaction between all system components
3Adaptability or versatility
If power tools lack position tracking capability, then the device complexity is low, but the ability to identify which fastener is being engaged and apply different control logic is lost
Solution Approach 1:
The system replaces mechanical position tracking methods with sensor-based detection. Accelerometers, gyroscopes, and magnetometers detect tool movement and orientation, allowing the controller to determine which fastener is being engaged and apply appropriate control logic without mechanical encoders or physical markers
Solution Approach 2:
The power tool autonomously tracks its own position and identifies which fastener is being engaged by integrating sensor data and using dead reckoning. This self-positioning capability enables adaptive control logic for different fasteners without requiring external positioning systems or manual input
Data Source
AI summary
A power tool includes a housing, a motor, a first sensor configured to generate first sensor data related to a movement of the power tool, and a controller. The controller is configured to receive the first sensor data from the first sensor between a first operation and second operation of the power tool, wherein the first sensor data is related to the movement of the power tool, determine a change in position of the power tool based on the first sensor data, determine that the second operation of the power tool is complete based on the change in position of the power tool, and output an indication to a user interface to alert a user that the second operation was completed.