Power Tool Adapter Switching Between Data and Power Modes
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Solution Overview
Problem
Existing power tools lack efficient communication and data exchange capabilities with external devices, limiting user access to tool usage data, maintenance information, and operational parameters, and do not seamlessly switch between data transmission and power transfer modes based on tool state.
Innovation Solution
An adapter for power tools that includes a housing with a tool-side connector, a battery-side connector, and a communication interface, coupled with a controller to determine the tool's state and switch between data transmission and pass-through modes, enabling data exchange with external devices when the tool is idle and power transfer when active.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the adapter continuously exchanges data with external devices, then communication capability is improved, but power consumption increases and interferes with power transfer to the power tool
Solution Approach 1:
The adapter dynamically switches between data transmission mode and power pass-through mode based on the operational state of the power tool. When the tool is idle, the adapter exchanges data with external devices; when the tool is active, the adapter transfers power without data communication, thus adapting the communication behavior to system conditions and resolving the contradiction between data exchange and power consumption
Solution Approach 2:
The system changes the operational parameter of the communication interface based on the power tool's state. The communication interface is enabled during idle states for data exchange and disabled during active states to prioritize power transfer, thereby changing the parameter of communication activity according to system needs and eliminating the conflict between data loss and energy use
2Productivity
If the adapter switches between data transmission mode and pass-through mode, then communication efficiency is improved, but device complexity increases
Solution Approach 1:
The adapter incorporates a state detection mechanism that monitors the operational state of the power tool and provides feedback to the control logic. This feedback system automatically triggers the appropriate mode (data transmission or power pass-through) based on real-time conditions, improving communication efficiency while managing complexity through automated state-responsive control
Solution Approach 2:
The adapter is designed as a multi-functional device that can perform both data transmission and power pass-through operations. By integrating multiple functions into a single device with unified control logic that responds to tool state, the system achieves high communication efficiency without proportionally increasing overall device complexity, as the same hardware infrastructure serves dual purposes
3Loss of information
If the adapter enables data exchange during idle state, then information accessibility is improved, but response time for power transfer may be delayed
Solution Approach 1:
The adapter operates in periodic cycles, alternating between data transmission mode during idle states and power pass-through mode during active states. This periodic switching ensures that data exchange occurs when the tool is not in use, providing full information accessibility, while immediately transitioning to power transfer mode when activation is detected, thus minimizing response time delays
Data Source
AI summary
A power tool communication system including an external device including a first controller configured to transmit, via wireless communication to a power tool, configuration data including a work light duration parameter value and a work light brightness parameter value. The power tool includes a housing, a brushless direct current (DC) motor, a trigger, a work light, a wireless communication circuit configured to wirelessly communicate with the external device to receive the configuration data, and a second controller configured to control a work light duration of the work light based on the work light duration parameter value, and control a work light brightness of the work light based on the work light brightness parameter value.