Automatic Lawn Mower Boundary Map Verification Before Mowing
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Solution Overview
Problem
Existing automatic lawn mower systems face safety issues due to inaccurate working area maps, which can lead to the mower traveling into unsafe areas or missing sections of the lawn, caused by offset boundaries and the high costs and limitations of high-precision positioning devices.
Innovation Solution
An automatic working system with a self-moving device equipped with a satellite positioning device, a storage unit for a working area map, and a control module that allows for manual observation and correction of the map during examination, ensuring accurate boundary recognition and safe operation by preventing task execution during map confirmation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a boundary line with electromagnetic field is arranged to detect working area boundaries, then the automatic lawn mower can identify the working area, but it is not easy to arrange the boundary line and it compromises the look of the lawn
Solution Approach 1:
The invention extracts the boundary detection function from physical boundary lines and implements it through a digital map stored in memory. The working area map contains coordinate information defining the working area boundaries, eliminating the need for physical electromagnetic boundary lines while maintaining reliable working area identification.
Solution Approach 2:
The invention creates a digital copy of the working area map in the controller's memory, which stores coordinate information representing the physical working area boundaries. This digital map serves as a virtual replica that guides the lawn mower without requiring physical boundary markers.
2Ease of operation
If a working area map is created using positioning coordinates to control the automatic lawn mower, then boundary line arrangement is not needed, but the accuracy of the created map is insufficient causing safety issues
Solution Approach 1:
The invention performs preliminary verification of the working area map before actual mopping work begins. The controller executes a verification process that checks whether the recorded map coordinates accurately represent the actual working area boundaries, and only after successful verification does it allow automatic mopping to proceed.
Solution Approach 2:
The invention implements a feedback mechanism during map verification where the controller monitors the lawn mower's position relative to the recorded map coordinates and compares it with actual boundary conditions. This feedback loop ensures map accuracy by detecting deviations and preventing operation with inaccurate maps.
3Measurement precision
If high-precision positioning devices are used to improve map accuracy, then the working area can be accurately defined, but the cost increases
Solution Approach 1:
The invention enables the automatic lawn mower to autonomously verify the accuracy of its own working area map using its built-in positioning device and boundary detection capabilities. The system performs self-verification by comparing recorded map coordinates with actual boundary conditions detected during verification operation, eliminating the need for external high-precision positioning equipment.
4Productivity
If the automatic lawn mower starts working immediately after map creation, then productivity is improved, but safety issues occur due to inaccurate maps
Solution Approach 1:
The invention performs preliminary verification of the working area map before allowing automatic mopping to start. The controller executes verification procedures that check map accuracy by comparing recorded coordinates with actual boundaries, and only after successful verification does it permit productive operation to begin.
Solution Approach 2:
The invention prepares for potential safety issues by implementing a verification buffer between map creation and actual mopping operation. This intermediate verification step acts as a protective measure that prevents unsafe operation with inaccurate maps while minimizing delay to productivity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution ensures the accuracy of the working area map, preventing safety issues and allowing for simplified use preparation, enabling the automatic lawn mower to rapidly start working and return to a charging station, while ensuring all areas are covered without the need for extensive user training.
Implementation Method 1
a positioning device is configured to detect a current position of the self-moving device
Data Source
AI summary
The present invention relates to an automatic working system, including a self-moving device and a positioning device. The self-moving device includes a movement module, a task execution module. The positioning device is configured to detect a current position of the self-moving device. The automatic working system includes: a storage unit, configured to store a working area map, and: a map confirmation procedure, which including: providing a drive circuit instruction to move along a working area boundary, and receiving a confirmation signal from a user to complete the map confirmation procedure; and a working procedure including providing a drive circuit instruction to move within a working area defined by the map and execute the working task; and a control module, configured to monitor an output of the positioning device to execute the map confirmation procedure and execute the working procedure after the map confirmation procedure is completed.