Ground working system with at least one intensive zone
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Solution Overview
Problem
Existing ground working systems, such as self-driving lawnmowers, require extended operating times to adequately address areas with vigorous grass growth, leading to inefficiencies in lawn maintenance.
Innovation Solution
A ground working system with self-driving devices that can switch to an intensive mode when encountering predetermined intensive limits, allowing for focused work on high-growth regions without extending the overall operating time, using navigation units and control units to manage paths and limits within the operating region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the ground working device operates randomly or on predetermined paths throughout the entire operating region, then the device can cover the whole area, but regions with vigorous grass growth are not adequately addressed and overall operating time must be increased
Solution Approach 1:
The patent applies local quality by creating an intensive region with distinct boundaries where intensified working is applied. The ground working device detects when it enters this predefined intensive region and switches to intensive mode, performing multiple working passes specifically in this area. This allows different working intensities to be applied to different regions of the operating area, addressing high-growth regions more thoroughly without affecting the overall operating time for the entire lawn.
2Manufacturing precision
If the ground working device is controlled to work the entire operating region uniformly, then consistent coverage is achieved, but high-growth regions require extended operating time
Solution Approach 1:
The patent implements dynamics by allowing the ground working device to dynamically switch between normal operating mode and intensive operating mode based on its location. The control unit monitors the device's position and automatically activates intensive mode when the device enters the intensive region, and deactivates it when leaving. This dynamic adjustment enables the system to maintain uniform coverage across the entire operating region while applying additional working passes specifically in high-growth areas without proportionally increasing total operating time.
3Productivity
If multiple intensive zones are defined within the operating region, then all high-growth areas can be addressed, but the device complexity increases
Solution Approach 1:
The patent applies universality by designing the ground working device with a single control unit that can handle multiple intensive regions through a unified intensive mode. The control unit receives boundary data for multiple intensive regions, stores them in memory, and automatically determines when to activate intensive mode based on the current position relative to any of these regions. This multi-functional approach allows the same device and control logic to manage any number of intensive zones without requiring separate control systems for each region, thereby maintaining device simplicity while achieving comprehensive coverage.
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 marking and working of high-growth areas within the existing operating time, allowing the system to complete intensive regions without prolonging the overall working time, with features like virtual limits and state variables for mode management.
Implementation Method 1
A base station of the ground working system is electrically connected to the wire and transmits on the wire a wire signal, the electromagnetic field of which induces a reception signal in a reception coil of the ground working device.
Data Source
AI summary
A ground working system having at least one self-driving ground working device, wherein the ground working device has a drive, a control unit and an in-device battery for supplying energy to the ground working device. An operating region (A) determined by an edge boundary is provided for the ground working device, wherein the ground working device travels over an operating path (W) determined by the control unit within the operating region (A). In order to meet requirements for a differing working intensity of specific regions of an area, it is provided to predetermine at least one intensive limit, an intensive limit in each case demarcating an intensive region (B). The ground working device in an intensive mode works the intensive region (B) with preference.