Walk-behind Machine Display Integrating Operational Feedback
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Solution Overview
Problem
Walk-behind working machines, such as mowers and snow throwers, often lack user-friendly interfaces for determining the current operational mode and working state, requiring users to rely on experience and auditory cues, which can be inadequate for infrequent users.
Innovation Solution
Incorporating a display capable of showing information related to the machine's mode, power, fault, and other operational states, connected to the handle device and allowing Bluetooth connectivity with user devices, providing clear and intuitive feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate buttons are used to control various functions, then the device complexity is reduced and ease of manufacture is improved, but the user interface becomes less intuitive and information feedback becomes scattered
Solution Approach 1:
The patent combines multiple independent indicator lights into a single integrated display device that shows all working state information simultaneously. This merging approach maintains manufacturing simplicity while significantly improving user interface intuitiveness by presenting consolidated information in one location rather than scattered across multiple buttons and lights.
Solution Approach 2:
The display device serves multiple functions: it shows working mode information, blade rotational speed status, and other operational states simultaneously. This multi-functional approach improves ease of operation by providing comprehensive feedback through a single interface element, while the display itself remains a standard component that does not complicate manufacturing.
2Device complexity
If indicator lights are used to feedback working state, then the device complexity remains low, but the information feedback becomes scattered and less comprehensible
Solution Approach 1:
The patent merges multiple scattered indicator lights into a single comprehensive display that presents all working state information in one location. This reduces information loss and improves comprehensibility while maintaining relatively low device complexity, as the display replaces rather than adds to the existing indicator system.
Solution Approach 2:
The display acts as an intermediary between the machine's internal working states and the user, translating complex operational data into visually comprehensible information. This intermediary function improves information feedback clarity without significantly increasing device complexity, as the display processes and presents information in an user-friendly format.
3Device complexity
If no display is provided, then the device complexity is minimized, but the user must rely on experience and auditory cues which increases the difficulty of detecting and measuring working state
Solution Approach 1:
The patent implements a visual feedback system through the display that provides real-time information about working modes and operational states. This feedback mechanism significantly reduces the difficulty of detecting and measuring working state, allowing users to immediately see machine status without relying on auditory cues or accumulated experience, while adding only moderate complexity to the overall device.
Data Source
AI summary
A walk-behind working machine. The walk-behind working machine includes a body including a walking assembly and a drive assembly for driving the walking assembly; a handle device including a grip for a user to hold; and a connecting rod assembly for connecting the body to the handle device. The walk-behind working machine further includes a display capable of displaying information related to the walk-behind working machine. In this manner, it is convenient for the user to acquire the work information of a working machine, thereby improving the convenience of use of the user.