Remote Drill Programming With Dynamic Fastener Threshold Control
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Solution Overview
Problem
Power tools, such as drill drivers, face challenges in accurately setting fasteners due to pre-programmed fixed parameter values that do not account for the specific characteristics of fasteners and workpieces, leading to improper setting or nuisance trips.
Innovation Solution
A method and system for remote programming of power tools, where descriptors of a fastening application are received via a wireless data link, allowing the controller to modify the fastener setting algorithm and update threshold values, enabling real-time monitoring and adjustment of operating parameters like motor current and speed to optimize fastener setting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pre-programmed fixed parameter values are used in the fastener setting algorithm, then the power tool can operate with simple control logic, but the accuracy of fastener setting deteriorates due to inability to account for specific characteristics of different fasteners and workpieces
Solution Approach 1:
The patent implements dynamic parameter adjustment by allowing the fastener setting algorithm to adapt parameters in real-time based on monitored operating conditions. The controller dynamically modifies threshold values and algorithm parameters during operation rather than using fixed pre-programmed values, enabling the system to respond to specific fastener and workpiece characteristics while maintaining operational simplicity.
2Reliability
If fixed parameter values are applied to various fastening applications, then the power tool manufacturing process is simplified, but the reliability of fastener setting deteriorates due to improper setting or nuisance trips
Solution Approach 1:
The patent applies parameter changes by enabling the controller to modify algorithm parameters and threshold values based on monitored operating conditions. This allows the same hardware and base software to be used across different applications while achieving reliable fastener setting through dynamic parameter adjustment rather than requiring different pre-programmed configurations for each application type.
Solution Approach 2:
The system implements feedback mechanisms where the controller continuously monitors operating parameters and uses this information to adjust the fastener setting algorithm in real-time. This feedback loop ensures reliable operation across different fastening applications by adapting to actual conditions rather than relying on fixed pre-programmed parameters.
3Adaptability or versatility
If the fastener setting algorithm uses fixed threshold values, then the device operation is simple, but the adaptability to different fastening applications deteriorates
Solution Approach 1:
The patent makes the fastener setting algorithm dynamic by enabling real-time parameter adjustment based on monitored operating conditions. This allows the algorithm to adapt to different fastening applications automatically while maintaining simple operation for the user, as the adaptation occurs autonomously through the controller's monitoring and adjustment capabilities.
Data Source
AI summary
A drill system including a drill and a secondary computing device. The drill includes a housing, a controller, a wireless transceiver, a motor, and a chuck. The motor, the controller and the wireless transceiver are housed in the housing. The chuck is selectively driven by the motor. The secondary computing device includes a wireless transceiver which allows wireless communication between the drill and the secondary computing device. The secondary computing device further includes a user interface configured to allow an operator to change operating parameters of the drill. The operating parameters are configured to be automatically reset.