Electric Tool Voice Broadcast for Clear Status and Fault Alerts

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Solution Overview

Problem

Traditional electric tools rely on simple buzzers to indicate states like startup, shutdown, and faults, making it difficult for users to accurately determine the current state of the tool, especially for complex conditions like communication failures, battery mismatches, and temperature issues, requiring a more intuitive and humanized way to communicate these states.

Innovation Solution

An intelligent voice broadcast method is implemented in electric tools, featuring a state detection unit, voice broadcast unit, and voice conversion unit, which generates and broadcasts voice commands based on power supply and temperature information, providing clear voice alerts for various conditions, including low battery, overtemperature, and communication failures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If a traditional buzzer is used to prompt working states, then the device complexity is low and manufacturing cost is reduced, but the information transmission clarity deteriorates and user understanding becomes difficult

Engineering Contradiction:
Improveinformation transmission clarityVSAvoiddevice complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent replaces the traditional mechanical buzzer system with an electronic voice synthesis system. The control unit generates voice signals that are converted to audible speech through a voice module, substituting the simple electromagnetic buzzer mechanism with an electronic information processing system that can articulate complex state descriptions clearly.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a voice conversion module as an intermediary between the control unit and the output device. This module translates digital state information into human-readable voice prompts, serving as a mediator that converts raw data into comprehensible information, thereby improving information transmission without requiring complex user interpretation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If simple buzzer sounds are used, then the manufacturing cost is reduced and ease of manufacture is improved, but the ease of operation deteriorates as users cannot easily understand tool states

Engineering Contradiction:
Improveease of operationVSAvoidease of manufacture
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The patent changes the output parameter from simple acoustic frequency (buzzer tone) to linguistic information (voice speech). By transforming the nature of the output signal from physical vibration characteristics to semantic content, the system provides intuitive state information that is immediately understandable to users, significantly improving ease of operation.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces the mechanical buzzer system with an electronic voice synthesis system. The control unit generates voice signals that are converted to audible speech through a voice module, substituting the simple electromagnetic buzzer mechanism with an electronic information processing system that can articulate complex state descriptions clearly.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Loss of time

If professional documentation is required to interpret buzzer sounds, then the device complexity remains low, but the loss of time increases as users need to reference manuals

Engineering Contradiction:
Improveloss of timeVSAvoiddevice complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The patent implements a self-service information system where the electric tool itself provides the explanation of its state through voice prompts. Instead of requiring users to externally reference manuals or documentation, the system autonomously communicates its status, diagnostics, and operational state directly to the user, eliminating the need for external reference materials and reducing time loss.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent establishes a feedback loop where the control unit continuously monitors tool state and immediately communicates changes back to the user through voice prompts. This real-time feedback mechanism provides instantaneous information about operational status, errors, and warnings, eliminating the delay associated with manual documentation lookup and enabling users to respond promptly to tool conditions.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP4159378A1Intelligent voice broadcast method applied to electric tool and electric tool
Publication Date: 2023.04.05 DONGGUAN KOHAM IND CO LTD
  • EP4159378A1 patent drawingFigure 1
  • EP4159378A1 patent drawingFigure 2~3
  • EP4159378A1 patent drawingFigure 4~5

AI summary

The present disclosure relates to the technical field of electric tools, in particular to an intelligent voice broadcast method applied to an electric tool and an electric tool, including a working unit configured for executing a work task; a power unit for driving the working unit to execute a work task by power; a signal generation unit for generating driving information and enabling the working unit to do, according to the driving information, a corresponding action; a power supply unit for supplying electric energy to the electric tool; and a control unit used as a center control part. Corresponding voice files are loaded according to different working states of the electric tool, so that a user can intuitively determine a current working state of the electric tool by sounds. Thus, the working efficiency of the user can be improved, and the learning cost of the user is also greatly reduced.