Virtual Boundary Closure for Autonomous Robotic Lawn Mowers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing autonomous mobile mowing apparatuses require manual guidance for boundary closure, leading to inefficiencies and lawn damage due to repeated position adjustments and insufficient positioning accuracy.
Innovation Solution
A method for constructing a virtual boundary that includes controlling the autonomous mowing apparatus to travel within a region, recording its position, and outputting a virtual boundary map when specific boundary closing conditions are met, such as distance and minimal bounding rectangle thresholds, to automate boundary closure and improve accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual guidance is used for boundary closure, then the autonomous mobile mowing apparatus can be controlled to establish a virtual boundary, but the operation requirements of the user are increased and the efficiency of boundary closure is low
Solution Approach 1:
The system enables self-service by allowing the autonomous mobile mowing apparatus to automatically complete boundary closure based on pre-collected position data and automated judgment algorithms, eliminating the need for continuous manual guidance and reducing user operation requirements while significantly improving closure efficiency
Solution Approach 2:
The system applies preliminary action by collecting position data of the autonomous mobile mowing apparatus at multiple points before boundary closure is needed. This pre-collected data is stored and used later for automated boundary determination, allowing the system to quickly close boundaries without real-time manual intervention
2Measurement precision
If the autonomous mobile mowing apparatus is manually guided to travel around the lawn boundary, then positioning data can be collected, but the apparatus may need to perform position adjustment many times before the boundary can be closed, resulting in low efficiency
Solution Approach 1:
Position data is collected in advance at multiple predetermined points around the lawn boundary and stored in memory. When boundary closure is initiated, the system directly uses this pre-collected data to determine the boundary, eliminating the need for repeated position adjustments and significantly improving closure efficiency
Solution Approach 2:
The system uses feedback by continuously monitoring the position of the autonomous mobile mowing apparatus relative to the determined boundary. The judgment algorithm compares real-time position data with the stored boundary data to automatically determine when the boundary is properly closed, providing precise feedback without manual intervention
3Reliability
If the autonomous mobile mowing apparatus performs repeated position adjustments to close the boundary, then the boundary can be closed, but the apparatus repeatedly rolls the lawn near the apparatus, damaging the lawn
Solution Approach 1:
The system collects and stores position data at multiple points before boundary closure is initiated. This preliminary data collection allows the boundary to be determined accurately without requiring the apparatus to repeatedly adjust its position, thereby preventing repeated rolling and damage to the lawn
Solution Approach 2:
The system creates a digital copy of the boundary position data from the collected position information. This virtual boundary model is used for determination and control, allowing accurate boundary closure without physical repeated adjustments, thus protecting the lawn from damage
Data Source
AI summary
Embodiments of the present disclosure provide a method for constructing a virtual boundary, an autonomous mobile mowing apparatus, and a user terminal. The method includes: controlling the autonomous mobile mowing apparatus to travel within a to-be-processed region from a starting point for map construction, and recording a position of the autonomous mobile mowing apparatus; and outputting a virtual boundary map when a boundary closing condition is satisfied. In the present disclosure, a boundary closing condition is set to replace manual guidance of the autonomous mobile mowing apparatus to perform boundary closure, and the virtual boundary map is output when the boundary closing condition is satisfied, thereby preventing the autonomous mobile mowing apparatus from repeated position adjustment and repeated crushing of a lawn for boundary closure, reducing the damage of the autonomous mobile mowing apparatus to the lawn, and improving the efficiency of virtual boundary closure.