Self-Traveling Working Machine Narrow Path Navigation
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Solution Overview
Problem
Self-traveling working machines face efficiency issues in navigating narrow paths due to signal interference from wires on both sides, making it difficult to detect and traverse these areas effectively.
Innovation Solution
The implementation of area wires generating distinct electromagnetic waves for different regions, with a station supplying power to alternate the electromagnetic waves, allowing the machine to distinguish between them and adjust its path using signal detection units for efficient navigation and return routing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wires are installed on both sides of a narrow path to define the working region, then the working region can be properly delimited, but signal interference occurs between the wires making it difficult to detect the narrow path
Solution Approach 1:
The patent divides the working region into multiple sub-regions by installing wires at specific locations (including corners and midpoints of sides). This segmentation allows the control unit to distinguish between different regions and identify narrow paths by detecting signal characteristics in each segment, thereby resolving the interference problem while maintaining accurate region delimiting.
Solution Approach 2:
The patent applies different wire installation strategies to different locations within the working region. Wires are installed at specific critical locations (corners, midpoints) where signal characteristics differ, allowing the detection unit to identify narrow paths through local signal quality variations rather than relying on uniform wire placement throughout the entire region.
2Measurement precision
If wires are installed close together to define narrow paths, then the path boundaries are accurately defined, but signal interference increases making it difficult to decide the traveling route
Solution Approach 1:
The control unit is pre-programmed with navigation algorithms that anticipate signal interference patterns in narrow paths. The unit proactively determines traveling routes by predicting signal behavior in advance, rather than reacting to interference in real-time, thereby maintaining ease of operation while achieving precise path boundary definition through closely spaced wires.
Solution Approach 2:
The patent introduces an intermediary processing layer between the wire signals and the navigation decision. The control unit acts as an intermediary that receives raw signal data from wires, processes this information to filter out interference, and then generates reliable navigation commands, thereby enabling precise path definition without compromising operational ease.
3Productivity
If the working machine travels frequently in narrow paths, then work coverage is improved, but path marking occurs reducing work efficiency
Solution Approach 1:
The detection unit continuously monitors signal characteristics during navigation and provides feedback to the control unit. This feedback mechanism allows the system to detect when the machine is traveling along a narrow path and automatically adjusts its behavior to avoid repeated passes, thereby improving work coverage while preventing time-consuming path marking and reducing overall work time.
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 enhances the machine's ability to maintain efficient travel and work in regions with narrow paths by enabling precise detection and traversal, improving overall work efficiency and reducing the likelihood of path marking.
Implementation Method 1
an area wire 2, and a station 3. A predetermined power is supplied to the area wire 2, whereby the area wire 2 generates an electromagnetic wave
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
A self-traveling working machine, comprising a signal detection unit configured to detect signals representing a first and second regions adjacent to each other, and a traveling control unit configured to cause the machine to travel such that a value of the signal detected by the signal detection unit becomes a desired value, and during traveling of the working machine in one region of the first and second regions, if a detection result by the signal detection unit for a signal representing the other region satisfies a reference, the traveling control unit causes the machine to travel based on the signal representing the other region.