Wireless-Controlled Auxiliary Trimming for Robotic Mowers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing self-moving devices, such as robotic mowers, face challenges in safely performing auxiliary tasks like trimming and pruning, especially near obstacles, due to the need for manual operation and the risk of user injury from cutting edges.
Innovation Solution
A self-moving device equipped with an auxiliary working module, controlled by a wireless communication system, allows for supervised operation through user interaction, switching between automatic and auxiliary modes based on signal reception, and includes safety features like reduced energy and speed settings to ensure safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the distance between the metal blade and the profile of the periphery of the robotic mower is increased to prevent user injury, then safety is improved, but uncuttable areas increase between the blade and boundary of the working area or obstacles
Solution Approach 1:
The cutting system is divided into two independent modules: a main cutting module with a metal blade for bulk cutting, and an auxiliary cutting module with a nylon line for edge trimming. This segmentation allows each module to perform its specialized function - the main blade handles open areas while the auxiliary module reaches into boundary regions, thereby maintaining safety distance while eliminating uncuttable areas.
Solution Approach 2:
The auxiliary cutting module with nylon line acts as an intermediary between the main cutting system and the boundary obstacles. The nylon line, being flexible and less dangerous, can operate closer to obstacles and boundaries than the metal blade, effectively trimming edge areas without the same safety risks, thus expanding cutting coverage while maintaining safety.
2Productivity
If an auxiliary working module with cutting function is added to the self-moving device, then cutting coverage is improved, but the risk of user injury from cutting edges increases
Solution Approach 1:
The auxiliary cutting module uses a nylon line instead of a metal blade, fundamentally changing the material parameter from high-risk metal to low-risk synthetic fiber. This parameter change maintains cutting functionality while dramatically reducing the harmful factors associated with user injury risk.
Solution Approach 2:
Different cutting modules are assigned to different spatial zones: the main cutting module with metal blade operates in the central safe zone, while the auxiliary cutting module with nylon line operates in the boundary zone closer to obstacles. This local quality differentiation allows each module to use appropriate cutting tools for its specific operating region, expanding coverage while managing risk.
3Productivity
If the auxiliary cutting module operates at high energy, then cutting efficiency is improved, but safety is compromised
Solution Approach 1:
The auxiliary cutting module uses nylon line with lower energy parameters compared to metal blades. The nylon line operates at reduced energy levels that are inherently safer, yet still effective for trimming grass along boundaries and obstacles, thus balancing cutting efficiency with safety requirements.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention relates to a self-moving device, moving and working in a working area, including: a housing; a moving module, mounted in the housing, and configured to drive the housing to move; a main working module, mounted in the housing, and configured to perform a main working task; an auxiliary working module, mounted in the housing, and configured to perform an auxiliary working task; a control module, configured to control the moving module, the main working module, and the auxiliary working module. The self-moving device includes a wireless communication module, configured to receive a control signal generated by user operation. The self-moving device includes an automatic working mode and an auxiliary working mode, in the auxiliary working mode, the control module controls the auxiliary working module at least based on the control signal to work; the control module controls the auxiliary working module based on an interruption of the control signal to stop working. The beneficial effects of the present invention are as follows: An auxiliary working module can be added to the self-moving device, and safe working is kept.