Wireless Soil Sensor Probes for Trench-Free Moisture Monitoring

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Solution Overview

Problem

Existing soil moisture monitoring systems face challenges such as expensive and cumbersome cable trenching, risk of cable damage, manual intervention leading to inefficient watering, and inaccurate data collection, which can result in over-watering or under-watering, and require complex installation and maintenance.

Innovation Solution

A wireless soil sensor system with stainless steel probes for measuring moisture and salinity, using high and low frequency oscillators for accurate data collection, and a housing with a processing unit for wireless data transmission to a central location, allowing easy installation and continuous monitoring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of stationary object

If cable trenching is used to connect probes to the perimeter, then continuous data collection is enabled, but installation cost and complexity increase significantly

Engineering Contradiction:

Improvecontinuous data collectionVSAvoidinstallation complexity

Core Design Contradiction:

Duration of action of stationary objectVSDevice complexity

Solution Approach 1:

The patent extracts the cable trenching requirement by using wireless communication technology. The probe collects data wirelessly and transmits it to a receiver, eliminating the need for physical cable installation in the soil. This maintains continuous data collection capability while dramatically reducing installation complexity and cost.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the mechanical cable trenching system with a wireless communication system. Instead of physically embedding cables in the soil perimeter, the system uses radio frequency transmission to convey data from the probe to the receiver, substituting mechanical installation with electromagnetic communication.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If cable trenching is performed, then probe connection is established, but risk of cable damage from field operations increases

Engineering Contradiction:

Improveconnection reliabilityVSAvoidcable damage risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent removes the vulnerable cable infrastructure from the field environment. By eliminating physical cables that could be severed by farm equipment or animal traffic, the system eliminates the associated damage risk while maintaining reliable data transmission through wireless communication.

Inventive Principle:

Principle #2Taking out (Extraction)

3Ease of operation

If manual monitoring and control is used, then system operation is simplified, but watering efficiency and plant health deteriorate

Engineering Contradiction:

Improveoperation simplicityVSAvoidwatering efficiency

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The patent implements an automated feedback loop where the probe continuously monitors soil moisture and transmits data to the receiver. The system automatically triggers watering events based on predefined thresholds, eliminating manual intervention while optimizing water application efficiency and plant health through data-driven control.

Inventive Principle:

Principle #23Feedback

4Ease of operation

If manual record keeping is used, then data collection is simplified, but measurement accuracy and trend analysis quality deteriorate

Engineering Contradiction:

Improvedata collection simplicityVSAvoiddata accuracy

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The patent implements self-service data collection where the probe automatically measures soil moisture, temperature, and other parameters without human intervention. The system self-transmits data to the receiver and maintains continuous, accurate records, eliminating manual recording errors while preserving measurement precision through automated sensing and communication.

Inventive Principle:

Principle #25Self-service

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, accurate, and cost-effective soil moisture and salinity monitoring, reducing the risk of cable damage, and eliminating the need for trenching, and provides timely monitoring, and reduces the risk of cable damage, and provides timely monitoring, and reduces the need for manual intervention, and ensures precise watering and fertilization based on plant needs.

Implementation Method 1

a first sensing structure extending from the housing and in electrical communication with the processing unit, wherein the first sensing structure is made from a conductive material

Methodology Applied

Scientific EffectElectrical Conductivity: Conduction (electrical)

Implementation Method 2

a second sensing structure extending from the housing and in electrical communication with the processing unit, wherein the second sensing structure is made from a conductive material

Methodology Applied

Scientific EffectElectrical Conductivity: Conduction (electrical)

Data Source

PatentUS20260002898A1Soil and environment sensor and method of use

Publication Date: 2026.01.01 MURRAY MICHAEL

AI summary

The present invention is a sensor device comprising: a housing; a processing unit assembly disposed within the housing; a first sensing structure extending from the housing and in electrical communication with the processing unit, wherein the first sensing structure is made from a conductive material; and a second sensing structure extending from the housing and in electrical communication with the processing unit, wherein the second sensing structure is made from a conductive material.