Boundary Positioning Layout for Wire-Free Mower Perimeter Recording
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Solution Overview
Problem
Conventional automated lawn mowers require extensive and difficult-to-deploy metal wires to define working areas, which is inefficient for larger regions.
Innovation Solution
A boundary positioning device with a machine frame, two wheels, a push rod, a positioning module, and a circuit module, where one wheel is inside the working area and the other outside, allowing for easy recording of boundaries using a GPS module and dynamic sensing for optimal operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If metal wire is used to define the boundary of the predetermined region, then the mowing robot can recognize the boundary, but a large amount of metal wire is required and disposition is difficult when the region is large
Solution Approach 1:
The patent extracts the boundary recognition function from the metal wire itself and transfers it to a portable boundary positioning device. The metal wire is replaced by a wireless positioning system that uses a positioning module (GPS/北斗) to record and transmit boundary coordinates, eliminating the need for extensive physical metal wire installation while maintaining boundary recognition accuracy.
Solution Approach 2:
The patent replaces the mechanical metal wire boundary system with an electronic positioning system. The boundary positioning device uses a positioning module to obtain location information, a control module to process boundary data, and wireless communication to transmit information to the mowing robot, substituting the physical metal wire with an electronic field-based solution.
2Measurement precision
If metal wire is used to define the boundary, then the mowing robot can recognize the predetermined region, but disposition of the metal wire is not easy when the region is large
Solution Approach 1:
The patent extracts the boundary definition function from the physical metal wire installation process and transfers it to a portable positioning device that records boundary coordinates electronically. The boundary positioning device can be moved to different locations to record boundary points, and the data is stored and transmitted wirelessly, making boundary setup much easier and more flexible.
Solution Approach 2:
The patent replaces the manual metal wire installation process with an electronic coordinate recording system. The positioning module automatically obtains location information, the control module processes the boundary data, and wireless communication transmits the information to the mowing robot, eliminating the need for physical wire installation while maintaining boundary recognition accuracy.
3Quantity of substance
If a portable boundary positioning device is used instead of metal wire, then the need for metal wire is reduced, but the device complexity increases due to positioning module and circuit module
Solution Approach 1:
The boundary positioning device integrates multiple functions into a single portable unit: the positioning module (GPS/北斗) for location acquisition, the positioning module also serves as the data source for boundary recording. The control module processes positioning data, stores boundary information, and manages wireless communication. This multi-functional integration reduces the need for separate components and simplifies the overall system.
Solution Approach 2:
The patent uses a portable positioning device that can be moved to different boundary locations to record coordinate information, creating a digital copy of the boundary rather than using physical metal wire. The positioning module obtains location information that is processed and stored as boundary data, which is then transmitted to the mowing robot for boundary recognition and execution.
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
Enables efficient boundary recording for automatic mechanical equipment, reducing the need for metal wires and simplifying the operation of automated mowers, especially in larger areas.
Implementation Method 1
a dynamic sensing unit that is electrically coupled to the control unit and that is adapted for sensing a tilt angle of the positioning module
Data Source
AI summary
A boundary positioning device is adapted to pre-record a boundary of a to-be-worked area where an automatic mechanical equipment will be working. The boundary positioning device includes a machine frame, two wheels, a push rod, and a positioning module.When the boundary positioning device moves along the boundary, one of the wheels is located inside the to-be-worked area as an inner wheel, and the other one of the wheels is located outside the to-be-worked area as an outer wheel. The push rod extends rearwardly and upwardly from a rear side of the machine frame. The positioning module is disposed on the machine frame, and is spaced apart from the outer wheel by a distance same as a distance between a positioning unit and an outside-located wheel, which is located outside the to-be-worked area when the automatic mechanical equipment moves along the boundary of the automatic mechanical equipment.