Dynamic Irrigation Scheduling for Deeper Plant Root Growth

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Solution Overview

Problem

Conventional landscape sprinkler systems lack the ability to dynamically adjust irrigation schedules based on vegetation root depth, leading to overwatering and inefficient water use, as they do not account for root characteristics or soil conditions, resulting in wasted water and limited root zone growth.

Innovation Solution

A system that includes a central controller, sensors for weather and soil moisture, and databases to estimate and adjust root depth, generating a dynamic watering plan that gradually increases root depth over time, reducing water consumption by optimizing watering schedules based on root growth and soil conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional sprinkler systems use fixed irrigation schedules, then implementation is simple, but water consumption is excessive and root depth is limited

Engineering Contradiction:

Improveirrigation schedule managementVSAvoidwater consumption

Core Design Contradiction:

Ease of operationVSLoss of energy

Solution Approach 1:

The patent implements dynamic irrigation scheduling that automatically adjusts watering frequency and duration based on real-time root depth measurements, soil moisture levels, and environmental conditions. This transforms the static, manual irrigation approach into a dynamic, self-adjusting system that optimizes water application to match actual plant needs and root development stages.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system incorporates continuous feedback loops where sensors monitor root depth, soil moisture, and environmental parameters, which are then processed by controllers that adjust irrigation schedules accordingly. This closed-loop feedback mechanism enables the system to learn from plant responses and optimize water usage over time without manual intervention.

Inventive Principle:

Principle #23Feedback

2Reliability

If conventional sprinkler systems overwater vegetation, then vegetation appears lush, but root zone growth is limited to minimum depth

Engineering Contradiction:

Improvevegetation health appearanceVSAvoidroot depth

Core Design Contradiction:

ReliabilityVSLength of stationary object

Solution Approach 1:

The system implements preliminary conditioning phases where controlled, gradual water stress is applied before full irrigation. This preliminary action of controlled stress stimulates roots to grow deeper in anticipation of future water needs, establishing a more extensive root network before regular watering resumes, thereby achieving both deep roots and healthy vegetation.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent dynamically changes irrigation parameters (frequency, duration, intensity) based on detected root depth and plant response. By adjusting these parameters in response to measured conditions, the system optimizes the balance between maintaining vegetation health and stimulating root growth, transitioning from fixed schedules to adaptive parameter control.

Inventive Principle:

Principle #35Parameter changes

3Loss of time

If smart watering systems use meteorological data, then irrigation timing is improved, but root characteristics and water consumption optimization are not addressed

Engineering Contradiction:

Improveirrigation timing accuracyVSAvoidwater consumption efficiency

Core Design Contradiction:

Loss of timeVSLoss of energy

Solution Approach 1:

The patent introduces root depth sensors and plant response monitors as intermediary devices between the weather data and irrigation control. These intermediaries translate environmental conditions into plant-specific irrigation needs by measuring actual root characteristics and vegetation responses, creating a bridge between general meteorological information and customized irrigation requirements.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system enables vegetation to essentially self-regulate its water needs through the feedback mechanism. By monitoring plant responses and root development, the system allows vegetation to dictate its own irrigation requirements, eliminating the need for external expert knowledge or manual adjustment while optimizing water consumption based on actual plant needs.

Inventive Principle:

Principle #25Self-service

4Device complexity

If manual irrigation scheduling is used, then system complexity is low, but water waste through runoff occurs

Engineering Contradiction:

Improveirrigation control systemVSAvoidwater waste

Core Design Contradiction:

Device complexityVSLoss of substance

Solution Approach 1:

The patent applies partial irrigation actions distributed over multiple time periods rather than single excessive applications. By dividing total water requirements into smaller, strategically timed portions that match root absorption capacity and soil infiltration rates, the system delivers sufficient water without creating runoff, optimizing the balance between water application and actual uptake.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS11464178B2Method for dynamically increasing plant root depth

Publication Date: 2022.10.11 RACHIO INC

AI summary

According to one embodiment, a method for generating a dynamic watering plan that reduces water consumption requirements for vegetation is disclosed. An example method includes estimating root depth of vegetation watered by a watering system; determining an allowed water depletion threshold of the vegetation based on the root depth; determining a training watering plan to increase the root depth of the vegetation over time based on the root depth and the allowed water depletion threshold; and transmitting the training watering plan to a flow controller for execution by the watering system.