Substrate Sensor Irrigation Control for Hydroponic Plant Growth
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hydroponic growing systems face challenges in efficiently managing water and nutrient distribution in mineral wool substrates, leading to waste and sub-optimal plant growth conditions.
Innovation Solution
A central detector data processing system that uses detectors to measure properties like temperature, water content, and nutrient content, allowing for accurate control of irrigation inputs based on real-time substrate conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If traditional soil-based growing methods are used, then plants can grow with natural soil structure, but water and nutrient efficiency is poor leading to waste
Solution Approach 1:
The patent implements a feedback control system where sensors continuously monitor substrate properties (moisture, temperature, nutrient content) and transmit data to a central processing unit. The system automatically adjusts irrigation inputs based on real-time substrate conditions, creating a closed-loop feedback mechanism that optimizes water and nutrient delivery to plants, thereby reducing waste while maintaining high productivity
Solution Approach 2:
The patent replaces traditional mechanical irrigation systems with an automated electronic control system. Instead of manual or timer-based irrigation, the system uses sensors to detect substrate conditions and electronically controls irrigation devices to deliver precise amounts of water and nutrients only when and where needed, substituting mechanical operations with intelligent automated control
2Productivity
If irrigation is increased to improve plant growth conditions, then plant growth and yield increase, but water and nutrient consumption increases
Solution Approach 1:
The patent applies partial action by delivering irrigation only to specific zones where substrate conditions indicate need, rather than uniform irrigation across the entire system. The system monitors local substrate properties and activates irrigation devices selectively based on detected conditions, providing exactly the amount of water and nutrients required without excess
Solution Approach 2:
The patent dynamically changes irrigation parameters (flow rate, duration, frequency) based on real-time substrate condition data. The central processing unit adjusts irrigation inputs by modifying operational parameters of irrigation devices according to sensor readings, optimizing the balance between plant growth requirements and resource consumption
3Measurement precision
If manual monitoring and control of substrate conditions is used, then system complexity is low, but measurement precision and control accuracy are insufficient
Solution Approach 1:
The patent introduces sensors as intermediary devices between the substrate and the control system. These sensors act as mediators that convert physical substrate properties (moisture, temperature, nutrient content) into electrical signals that can be processed by the central control unit, enabling precise measurement without requiring direct human observation or complex manual measurement apparatus
Solution Approach 2:
The patent replaces manual monitoring methods with automated electronic sensing and data processing systems. Sensors continuously measure substrate conditions and transmit data electronically to a central processing unit, substituting human labor and simple mechanical tools with intelligent automated measurement and control systems that provide superior precision
Data Source
Figure 1~3
Figure 4~5
Figure 6
AI summary
A system and related method for monitoring plant growth conditions is provided, comprising a plurality of detectors (7) and central detector data processing means (1103); each detector (7) being arranged to measure properties indicative of a temperature, a water content, and a nutrient content, of a plant growth substrate; each detector (7) being further arranged to transmit the measured property or properties over a communications link to the central detector data processing means (1103); the central detector data processing means (1103) being arranged to store predefined irrigation data, defining a relationship between plural values for temperature, water content, pH level and/or nutrient content of the plant growth substrate; and plural desired irrigation output values; process the measured properties from each detector (7) to determine calculated properties of the substrate; and provide an output indicative of a desired irrigation input for the growth substrate, based upon measured properties received from the detectors (7) and the predefined irrigation data. A portable detector communications device (1105) for communicating configuration data relating to the detectors (7) may be included in the system.