Power Tool Accessory Identification for Motor Parameter Matching
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Solution Overview
Problem
Power tools lack an efficient method to identify and match accessories, leading to potential operational issues and reduced performance due to mismatched components.
Innovation Solution
Incorporating an interface with an electronic processor that detects accessories using identifiers such as RFID tags or resistive elements, determining the accessory type, and adjusting motor operating parameters accordingly, while providing notifications and locking mechanisms for mismatches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If power tools use traditional manual identification methods for accessories, then device complexity is reduced, but productivity and operational efficiency deteriorate due to time-consuming manual matching and potential errors
Solution Approach 1:
The patent replaces manual mechanical identification with electronic detection systems including RFID readers, NFC readers, cameras, and barcode scanners. These electronic systems automatically detect accessory identifiers and communicate with the controller to retrieve compatibility information, eliminating the need for manual accessory matching by operators.
Solution Approach 2:
The patent uses optical copying methods where a camera captures an image of the accessory's identifier (such as a barcode or QR code), and the controller processes this visual copy to identify the accessory type. This allows non-contact identification and retrieves accessory information from stored databases without physical manipulation of the accessory.
2Measurement precision
If power tools implement automated accessory identification systems, then measurement precision of accessory compatibility is improved, but device complexity increases due to additional sensors and processing requirements
Solution Approach 1:
The patent divides the identification system into separate functional modules: RFID readers for wireless identification, NFC readers for near-field communication, cameras for visual coding, barcode scanners for linear codes, and magnetic sensors for magnetic identifiers. Each sensor type detects different identifier formats, allowing the system to handle diverse accessory types through specialized detection methods.
Solution Approach 2:
The controller serves multiple functions by integrating accessory identification, compatibility verification, parameter selection, and error detection capabilities. The same controller that manages motor operation also processes identifier data from various sensors, retrieves accessory information from memory, and determines compatibility, consolidating multiple functions into a single processing unit.
3Reliability
If power tools use manual accessory matching, then ease of operation is maintained, but reliability deteriorates due to mismatched accessories causing operational errors
Solution Approach 1:
The system provides immediate feedback to the operator about accessory compatibility through the controller. When an accessory is detected, the controller verifies its compatibility with the power tool and communicates the result, allowing operators to confirm proper accessory selection before operation begins. This feedback loop prevents mismatched accessories from being used.
Solution Approach 2:
The system performs preliminary identification and compatibility verification of accessories before the power tool operation begins. The controller detects the accessory identifier, retrieves compatibility information from memory, and confirms proper matching before allowing the motor to operate, preventing errors from mismatched accessories during actual use.
4Loss of information
If power tools implement comprehensive accessory identification and verification, then loss of information regarding accessory compatibility is reduced, but device complexity increases due to additional processing and memory requirements
Solution Approach 1:
The system uses self-identifying accessories that contain built-in identifiers such as RFID tags, NFC tags, barcodes, QR codes, or magnetic identifiers. Each accessory carries its own identification information, eliminating the need for external documentation or manual recording of accessory specifications. The accessory essentially identifies itself to the detection system.
Solution Approach 2:
The controller acts as an intermediary between the accessory identifiers and the power tool operation system. It receives identifier data from various sensors, retrieves compatibility information from memory, processes the information to determine compatibility, and then communicates the results to the motor control system. This intermediary processing layer manages information flow without requiring direct complex interactions between sensors and motor control.
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
Ensures compatible accessory usage, enhances operational efficiency, and prevents motor operation errors by accurately identifying and matching accessories with the power tool's capabilities.
Implementation Method 1
The power tool includes a radio frequency identification reader, the identifier is a radio frequency identification tag
Implementation Method 2
the identifier is a resistive element and the electronic processor is configured to determine the accessory type of the accessory by determining a resistance value of the resistive element
Data Source
AI summary
Systems and methods for identifying power tool accessories. Power tools described herein include a power tool housing including an interface. The interface is configured to receive an accessory. The accessory includes an identifier. The power also includes a motor and an electronic processor connected to the motor and a memory. The electronic processor is configured to detect insertion of the accessory into the interface and determine, when the accessory is inserted into the interface, an accessory type of the accessory based on the identifier. The electronic processor is configured to select operating parameters for the motor based on the accessory type.