STEM与日常科技·英语30篇（7）
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How Smart Blinds Respond to Indoor Temperature Changes
智能遮阳帘如何响应室内温度变化
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Smart blinds use tiny thermal sensors embedded in their frames to detect subtle air temperature shifts.
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When indoor heat rises above a preset threshold, the blinds automatically tilt upward slightly to allow airflow.
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This adjustment helps reduce reliance on air conditioning by improving natural ventilation.
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The system works independently of sunlight intensity, focusing only on ambient thermal data.
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Each sensor communicates wirelessly with a central controller that processes readings every 90 seconds.
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Manufacturers calibrate these devices using real-world HVAC load models for energy efficiency.
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Unlike sun-tracking blinds, this mechanism activates even on cloudy or nighttime hours.
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The motorized gears operate quietly and consume less than 0.5 watts per adjustment cycle.
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Users can override automatic mode via app or voice command without disrupting calibration.
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Engineers designed the algorithm to avoid rapid toggling by requiring sustained temperature change over two minutes.