Power Tool Controller with Low-Noise Mode to Reduce Noise Disturbance
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Solution Overview
Problem
Motorized garden tools like leaf blowers, trimmers, and chainsaws produce high noise levels, disturbing users and those around them, leading to potential hearing impairment and noise restrictions in residential areas.
Innovation Solution
A power tool with a controller that switches between default and low-noise modes, using predetermined settings to reduce noise output, potentially incorporating Active Noise Cancellation units and sound-dampening materials, and can be activated remotely or manually to meet local noise requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the power tool operates in default mode to maintain performance, then productivity is improved, but noise output increases causing disturbance and hearing impairment
Solution Approach 1:
The controller dynamically switches between default mode and low-noise mode based on activation input, allowing the power tool to adapt its operational characteristics. In low-noise mode, the controller modifies operating parameters to reduce noise output while maintaining functional capability, thus resolving the contradiction between productivity and noise generation.
Solution Approach 2:
The controller changes operational parameters when switching to low-noise mode, adjusting settings to minimize noise output. This parameter modification allows the power tool to operate with reduced noise levels while still performing its intended function, addressing the conflict between maintaining performance and reducing harmful noise.
2Reliability
If hearing protection is worn to protect user health, then reliability of user health is improved, but ease of operation deteriorates due to discomfort during prolonged use
Solution Approach 1:
The invention converts the harmful noise into a controlled parameter by implementing low-noise mode operation. By actively reducing noise output at the source through controller-managed settings, the harmful factor (noise) is transformed into a beneficial outcome (comfortable operation without hearing protection), thus resolving the contradiction between health protection and operational comfort.
3Object-affected harmful factors
If noise restrictions are imposed to protect surrounding areas, then object-affected harmful factors are reduced, but adaptability of the power tool deteriorates due to usage restrictions
Solution Approach 1:
The power tool becomes adaptive to different environmental requirements through dynamic mode switching. The controller responds to activation input by switching between default mode for areas without restrictions and low-noise mode for noise-sensitive areas, thus maintaining versatility and usage flexibility while respecting local noise regulations.
Solution Approach 2:
The power tool achieves multi-functionality by incorporating both default mode and low-noise mode operations. This allows the single device to serve multiple purposes: high-performance operation in unrestricted areas and low-noise operation in restricted areas, thereby eliminating the need for multiple specialized tools and maintaining broad adaptability.
Data Source
AI summary
A power tool comprising a controller for controlling the operation of the power tool wherein the controller is configured to control operation of the power tool in a default mode and in a low-noise mode, wherein;the controller, is configured to control operation of the power tool in the low-noise mode on basis of predetermined settings that are selected such that the noise output from the power tool in the low-noise mode is lower than the noise output from the power tool in the default mode.