GPS-Guided Lawn Patterning Implement with Independent Printers

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Solution Overview

Problem

Current lawn patterning techniques lack precision and consistency due to operator skill dependence and equipment limitations, resulting in low-resolution patterns that cannot effectively create detailed images or designs on sports fields and landscapes.

Innovation Solution

A system utilizing a global positioning system, processor, and independent printing mechanisms within a patterning implement to generate and imprint high-resolution patterns on lawns and fields, eliminating operator variability and enhancing pattern resolution and contrast through automated control of cutting or bending implements and color application.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If operator-guided lawn maintenance equipment is used for patterning, then the equipment can cover wide areas efficiently, but the pattern resolution and precision are insufficient due to operator skill variability and accumulated ranging errors

Engineering Contradiction:
Improvecoverage area efficiencyVSAvoidpattern resolution
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent replaces manual operator guidance with an automated guidance system that uses GPS receivers and controllers to pilot the lawn maintenance equipment. This substitution eliminates operator skill variability and accumulated ranging errors, enabling precise pattern creation while maintaining wide area coverage efficiency.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces GPS receivers and automated control systems as intermediaries between the operator and the equipment. These intermediaries provide continuous position feedback and automated guidance, allowing the equipment to follow precise paths for creating high-resolution patterns without relying on operator skill or visual landmarks.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If fixed-width multi-implement mowers are used for patterning, then wide swaths can be covered efficiently, but detailed artwork and contrast cannot be created with sufficient precision

Engineering Contradiction:
Improveswath coverage efficiencyVSAvoiddetail resolution
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent segments the patterning process by using multiple independently controlled printing mechanisms within the implement rather than a single fixed-width implement. Each printing mechanism can be individually controlled to create specific pattern elements, enabling detailed artwork while maintaining efficient wide-area coverage through coordinated operation of multiple segments.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent makes the patterning implement dynamic by allowing individual printing mechanisms to be independently activated or deactivated based on real-time position feedback from the GPS system. This dynamic control enables the creation of detailed patterns with varying contrast and resolution across different areas of the swath, overcoming the limitations of fixed-width static implements.

Inventive Principle:
Principle #15Dynamics

3Manufacturing precision

If automated printing mechanisms are used to create detailed patterns, then pattern resolution and contrast are improved, but the equipment complexity increases

Engineering Contradiction:
Improvepattern detail resolutionVSAvoidequipment structure
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent applies multi-functionality by using standard lawn maintenance equipment (mowers, rollers, benders) that can perform both their traditional lawn care functions and the additional function of pattern creation. The printing mechanisms are integrated into existing equipment frameworks, allowing the same equipment to maintain lawns while simultaneously creating high-resolution patterns, thereby reducing overall system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent uses digital copies of desired patterns stored in the controller's memory to guide the automated printing mechanisms. Instead of requiring complex mechanical systems to interpret design intent, the system simply reproduces digital pattern data by activating appropriate printing mechanisms based on real-time position feedback, simplifying the control architecture while achieving high pattern resolution.

Inventive Principle:
Principle #26Copying

4Device complexity

If operator skill is relied upon for accurate patterning, then equipment simplicity is maintained, but pattern quality suffers from accumulated ranging errors and lack of line-of-sight feedback

Engineering Contradiction:
Improveequipment simplicityVSAvoidpattern consistency
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent implements continuous feedback by using GPS receivers to monitor the equipment's position in real-time and feeding this information back to the controller. The controller compares the actual position with the desired path and automatically adjusts the guidance signals to maintain precise positioning, eliminating accumulated ranging errors and ensuring consistent pattern quality without requiring operator intervention or line-of-sight feedback.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS8190360B2Method and apparatus for creating visual effects on grass
Publication Date: 2012.05.29 DAVIS PETE J
  • US8190360B2 patent drawing
  • US8190360B2 patent drawing
  • US8190360B2 patent drawing

AI summary

A method and apparatus for imprinting high resolution images onto fields, such as sports fields and landscapes is disclosed. In one embodiment, precise and consistent lawn and field patterning is accomplished by use in combination of a global positioning system; a processor for generating a desired pattern which is translated into patterning instructions; and a patterning implement which is used for generating detailed patterns and for imprinting said patterns on any of natural or artificial lawns and fields, covered areas, and landscapes. The patterning implement comprises a plurality of independent printing mechanisms incorporated within said patterning implement, each of the independent printing mechanisms coupled to receive patterning instructions from the processor and operate selectively in response thereto. The invention also comprises means for guiding the patterning implement to position it along a desired path at least in part with information from said global positioning system; and means for individually controlling each of said independent printing mechanisms incorporated within said patterning implement responsive to said patterning instructions and in coordination with positioning of said patterning implement along said desired path.