Grain Storage Bin Ventilation Control System
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Solution Overview
Problem
Conventional grain ventilation systems require periodic monitoring of grain parameters and often activate ventilation at undesirable conditions, leading to potential grain damage due to uncontrolled moisture and temperature variations.
Innovation Solution
An automatic grain ventilation system that includes a ventilation control system with fan switch control units, weather stations, and grain characteristics monitoring devices to continuously monitor and adjust ventilation based on predefined temperature-humidity ranges, ensuring optimal grain storage conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional ventilation systems are activated based on periodic monitoring of grain parameters, then the ventilation system can be operated with simple control mechanisms, but the system may activate ventilation at undesirable conditions leading to grain damage due to uncontrolled moisture and temperature variations
Solution Approach 1:
The patent implements continuous feedback loops where grain temperature and humidity sensors constantly monitor storage conditions and automatically adjust ventilation fan operation. The system compares real-time sensor data against predetermined safe ranges and activates/deactivates ventilation accordingly, ensuring reliable grain protection without requiring complex manual control mechanisms.
Solution Approach 2:
The ventilation system is designed to automatically self-regulate based on grain condition sensors. The control system independently determines when ventilation is needed by monitoring grain temperature and humidity levels, eliminating the need for periodic manual inspection and activation decisions, thereby improving reliability while keeping the control mechanism relatively simple.
2Reliability
If ventilation systems are activated frequently to maintain grain parameters, then grain quality can be maintained within desired ranges, but energy consumption increases due to continuous fan operation
Solution Approach 1:
The ventilation system dynamically adjusts fan operation based on real-time grain condition monitoring. Fans are activated only when sensors detect temperature or humidity levels approaching unsafe thresholds, and deactivated when conditions are stable and within safe ranges. This dynamic on-demand operation maintains grain quality while minimizing unnecessary energy consumption compared to continuous ventilation.
Solution Approach 2:
The system changes operational parameters (fan activation state) based on detected grain condition parameters (temperature and humidity). When grain parameters remain within predetermined safe ranges, ventilation is deactivated to conserve energy. When parameters approach critical thresholds, ventilation activates to restore safe conditions, optimizing the balance between grain quality maintenance and energy efficiency.
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
The system effectively maintains grain parameters within a predefined range, reducing the risk of grain damage and spoilage by automatically adjusting ventilation in response to real-time temperature and humidity changes.
Implementation Method 1
The weather station includes an environmental sensor to continuously capture the real-time external temperature and/or external humidity
Implementation Method 2
A second end of the first sensing probe is positioned in the storage bin to continuously capture the real-time temperature-humidity of the surrounding grains
Implementation Method 3
The plurality of ventilation fans are installed to the storage bin to enable moving the air through the stored grains
Implementation Method 4
The system effectively maintains grain parameters within a predefined range, reducing the risk of grain damage and spoilage by automatically adjusting ventilation in response to real-time temperature and humidity changes
Data Source
AI summary
Disclosed are a method and/or system for automatically controlling ventilation of a grain storage bin to maintain the grain parameters within a predefined range. The disclosed system includes a ventilation control system and a plurality of ventilation fans installed to the storage bin. The ventilation control system includes a fan switch control unit, a weather station, and a plurality of grain characteristics monitoring devices. The fan switch control unit includes a first switch and a second switch to constantly operate the plurality of ventilation fans on receiving an alarm signal from the weather station and/or the grain characteristics monitoring devices. The weather station transmits the alarm signal to deactivate plurality of ventilation fans when the captured external parameters deviate from predefined external temperature-humidity range. The grain characteristics monitoring devices transmit the alarm signal to activate plurality of ventilation fans when the captured grain parameters deviate from predefined grain temperature-humidity range.