Greenhouse comprising a climate control system
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Solution Overview
Problem
Existing greenhouses experience significant variations in temperature and humidity conditions during the day, leading to uneven climate conditions within the interior space.
Innovation Solution
A greenhouse with a climate control system featuring a grid of control units, each equipped with an air displacement ventilator, temperature and/or humidity sensors, and a central controller that individually adjusts air displacement based on local measurements to maintain uniform climate conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a grid of control units with individual ventilators and sensors is implemented, then climate uniformity is improved, but device complexity increases
Solution Approach 1:
The greenhouse climate control system is divided into multiple independent control units, each responsible for a specific zone. Each unit contains its own ventilator, temperature sensor, and humidity sensor, enabling localized climate management. This segmentation allows individual adaptation of air displacement based on local conditions, resolving the contradiction by achieving climate uniformity through distributed control rather than centralized management.
Solution Approach 2:
Each control unit independently measures and adjusts climate parameters for its specific location using local temperature and humidity sensors. The central controller receives data from all units and individually adapts air displacement for each unit based on its measured conditions. This local quality approach ensures that each zone is optimized for its specific climate needs, achieving overall uniformity while maintaining manageable complexity through modular design.
2Temperature
If individual air displacement adaptation is implemented for each control unit, then temperature and humidity differences are minimized, but control system complexity increases
Solution Approach 1:
Each control unit is equipped with temperature and humidity sensors that continuously monitor local conditions. The central controller receives this feedback data and automatically adjusts the air displacement of each ventilator based on the measured temperature and humidity values. This closed-loop feedback system minimizes temperature and humidity differences across the greenhouse while maintaining control system simplicity through automated decision-making algorithms.
Solution Approach 2:
The air displacement of each ventilator is dynamically adjusted based on real-time temperature and humidity measurements. The central controller continuously adapts the operation of each control unit according to changing local conditions, enabling the system to respond to temporal variations in climate parameters. This dynamic adaptation minimizes temperature and humidity differences while the modular structure keeps control complexity manageable.
3Measurement precision
If temperature and humidity sensors are integrated into each control unit, then measurement precision is improved, but manufacturing complexity increases
Solution Approach 1:
Temperature and humidity sensors are integrated into each individual control unit, creating self-contained measurement and control modules. This segmentation allows each unit to be manufactured as a standardized component with built-in sensing capabilities, improving measurement precision for local climate conditions while enabling mass production techniques to manage manufacturing complexity.
Solution Approach 2:
Each control unit is designed as a universal module that combines ventilator, temperature sensor, and humidity sensor functions in a single integrated package. This multi-functionality allows standardized manufacturing processes to be applied across all units, improving measurement precision through consistent sensor integration while reducing overall manufacturing complexity through economies of scale and modular assembly.
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 minimizes temperature and humidity differences by adapting air flow according to local conditions, resulting in a more homogeneous climate within the greenhouse.
Implementation Method 1
an additional flow path is present comprising one or more sensors and which additional flow path fluidly connects an opening in the housing with the ventilator flow path for drawing in air due to a venturi effect via the additional flow path towards the ventilator flow path
Data Source
Figure 1
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Figure 4~5
AI summary
It is disclosed a ventilator (9A, 9) comprises a housing (20) having opposite first (21) and second ends (22) and an axial rotor (23) arranged in a ventilator flow path (23A), wherein the ventilator flow path (23A) has an inlet at the first end (21) of the housing (20) and an outlet (22A) at the second end of the housing (20) and wherein an additional flow path (25) is present comprising one or more sensors and which additional flow path (25) fluidly connects an opening (16, 24) in the housing (20) with the ventilator flow path (23A) for drawing in air due to a venturi effect via the additional flow path (25) towards the ventilator flow path (23A), wherein the sensors are temperature and/or humidity sensors.