Cable-Supported Greenhouse Structure for UV Light Penetration
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Solution Overview
Problem
Existing greenhouses face challenges such as lack of insulation, vertical support structures that cause shade and limit sunlight, and materials like polyethylene or glass that restrict the full light spectrum, including UV light, which is essential for plant growth.
Innovation Solution
The proposed structure for growing plants features a unique design with a foundation oriented relative to the equator, a main support system with vertical and horizontal members, and a dual-shell structure with outer and inner cable nets and transmissive panels that allow maximum sunlight penetration, including UV light, while providing insulation and minimizing shade.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If vertical posts and trusses are used to support the roof system, then structural support is provided, but shade is caused and natural sunlight is reduced
Solution Approach 1:
The patent replaces rigid vertical posts and trusses with a flexible cable-supported roof system. The cable net structure provides structural support while being transparent to sunlight, eliminating the shade problem associated with traditional vertical support structures.
Solution Approach 2:
The patent substitutes the mechanical vertical post and truss system with a cable-based suspension system. This replacement maintains structural integrity while allowing maximum light transmission, as cables are invisible to sunlight unlike solid mechanical supports.
2Ease of manufacture
If polyethylene or glass is used for the greenhouse covering, then the structure is simple and cost-effective, but the full light spectrum including UV light is blocked
Solution Approach 1:
The patent employs a composite covering system combining transparent panels with UV-transparent properties. This material composition allows the greenhouse to maintain structural simplicity while transmitting the full light spectrum including UV wavelengths, overcoming the limitations of single-material solutions like polyethylene or glass.
3Ease of manufacture
If traditional greenhouse materials are used, then manufacturing is straightforward, but insulation is insufficient making heating extremely expensive in cold conditions
Solution Approach 1:
The patent implements a nested greenhouse structure with an inner shell and outer shell separated by an insulation layer. This layered configuration provides effective thermal insulation to reduce heating energy losses while maintaining ease of manufacture through modular assembly of the nested components.
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
This design enhances plant growth by maximizing sunlight exposure, including UV light, while providing effective insulation to reduce heating costs and minimize shade issues caused by vertical supports.
Implementation Method 1
a plurality of transmissive panels coupled to the outer cable net, and an outer wall on each of the east and west lateral sides and the first end, each outer wall comprising outer wall cables extending vertically to the outer perimeter frame and a plurality of transmissive panels coupled to the outer wall cables
Implementation Method 2
an inner shell comprising an inner roof comprising an inner cable net supported by the inner perimeter frame and a plurality of transmissive panels coupled to the inner cable net
Data Source
AI summary
A structure for growing plants comprising a main support, vertical supports along the perimeter of the foundation, a perimeter frame connected to the vertical supports, cables connected to the main support, vertical supports and perimeter frame, and an inner and outer shell formed from transmissive panels supported by the cables.