Greenhouse GreenhouseSunshade AccessoriesIt Is A Specialized Device That Precisely Regulates The Light Intensity And Temperature Inside The Greenhouse By Blocking, Reflecting, Or Filtering Sunlight. Its Core Function Is To Avoid Strong Light Burns And Reduce Environmental Temperature In Summer, While Creating Growth Conditions Suitable For Crops At Their Light Saturation Point. Unlike Traditional Shading Methods, Modern Shading Accessories Have Formed A Complete System Of "material Customization+intelligent Control", Which Can Not Only Solve The Problem Of Yield Decline Caused By Summer Photosynthesis "nap Time", But Also Cooperate With Supplementary Lighting Systems To Achieve Precise Management Of Light Throughout The Entire Cycle, Becoming A Key Support For Facility Agriculture From "passive Stress Resistance" To "active Regulation".
Core Type: Subdivision System By Function And Scenario
According To Installation Location, Material Characteristics, And Control Methods, Sunshade Accessories Can Be Divided Into Three Categories: Basic Sunshade Materials, Mechanical Drive Systems, And Intelligent Control Components. Various Accessories Work Together To Form A Complete Sunshade Solution.
1. Basic Shading Materials: The "first Line Of Defense" For Light Filtering
As The Core Component That Directly Acts On Light, The Material And Structure Of Shading Materials Directly Determine The Shading Effect. The Mainstream Types Can Be Subdivided According To Material And Function:
Traditional Woven Sunshade Net: Made Of Polyethylene Or Polypropylene As Raw Materials, Formed Through Knitting Or Flat Weaving Processes, And Can Be Divided Into Two Main Colors: Black And Silver Gray. Black Sunshade Nets Have A High Shading Rate (usually 50% -95%), Significant Cooling Effect, But Have A Greater Impact On Photosynthesis. They Are More Suitable For Shade Loving Crops Such As Edible Fungi And Chrysanthemums, Or For Strong Shading Needs During The Summer Seedling Period; The Silver Gray Shading Net Has A Relatively Low Shading Rate (30% -70%), And Its Surface Reflective Properties Have A Smaller Impact On Photosynthetic Efficiency. It Is Suitable For Light Loving Crops Such As Cucumber And Tomato, And Can Reduce The Risk Of Leaf Burns. According To The Weaving Density, It Can Be Divided Into Specifications Such As Two To Six Needles, Among Which The Three Needle Mesh Has A Light Shielding Rate Of About 70%, And The Six Needle Mesh Can Reach Over 90%. The Flat Weaving Process Products Have Strong Tensile Strength And Excellent Wind And Tear Resistance, And The Service Life Can Generally Reach More Than 5 Years, Far Exceeding The Inferior Mesh Made Of Recycled Materials (only 2 Months To 1 Year).
Functional Composite Sunshade Curtain: An Upgraded Product Developed For High-end Greenhouse Needs. Aluminum Foil Sunshade Curtain Is A Typical Representative. By Compounding Aluminum Foil Layer In The Substrate, It Achieves The Triple Effect Of "sunshade+reflection+insulation" - Reflecting More Than 60% Of Solar Radiation In Summer And Reducing 30% Of Heat Loss When Closed In Winter, Suitable For The Seasonal Regulation Needs Of Multi Span Intelligent Greenhouses. Some Specialized Curtains Also Have Spectral Screening Function, Which Can Filter Harmful Ultraviolet Light While Retaining Photosynthetically Active Radiation. For Example, Grape Specific Sunshades Can Reduce The Incidence Of Diseases By 15% Through Astigmatic Design.
New Environmentally Friendly Sunshade Materials: In Order To Solve The Secondary Pollution Problem Caused By The Aging And Fragmentation Of Traditional Sunshade Nets, Environmentally Friendly Sunshade Materials Are Gradually Emerging. This Kind Of Material Adopts Degradable Resin Or Reinforced Fiber, Which Not Only Improves The Anti-aging Performance, But Also Can Be Naturally Degraded Or Recycled After Waste, Especially Suitable For Organic Agricultural Bases With High Environmental Requirements.
2. Mechanical Drive System: The "power Transmission Center" For Sunshade Action
The Mechanical Drive System Is Responsible For The Unfolding And Winding Of Shading Materials, And Its Stability Directly Affects Shading Efficiency. The Core Components Include The Drive Motor, Transmission Mechanism, And Support Accessories:
Drive Motor: DC Or AC Deceleration Motor Is Used, And The Output Torque Needs To Match The Area And Weight Of The Sunshade Material. A Single Motor Can Usually Drive A Sunshade Screen Of 50-100 Square Meters. Intelligent Models Support Precise Control Of Forward And Reverse Rotation, And The Response Time For Expansion And Contraction Can Be Controlled Within 30 Seconds. Some High-end Equipment Is Equipped With Overload Protection Devices, Which Can Automatically Shut Down When Encountering Strong Wind Resistance To Avoid Mechanical Damage.
Transmission And Support Components: Composed Of Support Screen Wire, Pressure Screen Wire, Scroll And Connecting Parts. The Supporting Screen Line Is Made Of High-strength Polyester Fiber, With A Diameter Of Usually 2-3mm And A Spacing Of 50-80cm, Responsible For Carrying The Weight Of The Sunshade Screen; The Combination Of The Pressure Screen Line And The Support Screen Line Achieves A Smooth Folding And Unfolding Of The Screen, Preventing Wrinkles And Deformations Caused By Wind. The Scroll Is Mostly Made Of Hot-dip Galvanized Steel Pipe, With A Diameter Selected According To The Width Of The Screen To Ensure Uniform Force During Rotation And Avoid Jamming Caused By Center Of Gravity Deviation.
3. Intelligent Control Component: The "nerve Center" For Precise Regulation
With The Development Of Smart Agriculture, Shading Systems Have Been Upgraded From Manual Control To Automated Regulation. The Core Control Components Include Sensors, Controllers, And Communication Modules
Perception Component: The Light Sensor Monitors The Real-time Light Intensity Outside The Greenhouse (measurement Range Of 0-200000 Lux) And The Temperature Inside The Greenhouse. When The Light Intensity Exceeds The Crop Light Saturation Point (such As 30000 Lux For Chili Peppers And 55000 Lux For Cucumbers) Or The Temperature Is Above 30 ℃, The Shading Action Is Automatically Triggered. Some Systems Also Integrate Humidity And Carbon Dioxide Sensors To Realize The Linkage Regulation Of Sunshade, Ventilation And Spray.
Control Terminals: Divided Into Two Categories: Local Control Cabinets And Remote Cloud Platforms. The Local Control Cabinet Supports Manual Setting Of Shading Threshold And Travel, Suitable For Small And Medium-sized Greenhouses; Intelligent Greenhouses Achieve Refined Management Through Cloud Platforms. For Example, Baoding Hongzhang Flower Industry Park Can View Lighting Data Through Mobile Terminals, And The Sunshade Automatically Adjusts Its Opening And Closing Degree According To The Intensity Of Sunlight, Stabilizing The Indoor Temperature Within A Suitable Range Of 22-28 ℃. High End Systems Can Also Be Connected To Climate Computers, Combined With Weather Forecasts To Pre-set Shading Strategies In Advance, Achieving "predictive Control".
