温室光照度控制系统

摘要

A microcontroller-based greenhouse illumination control system is designed in this paper. The system utilizes the digital light sensor (BH1750FVI) to detect the illumination inside and outside. According to appropriate light range of the different crops, the system can select to block the shading film or open a certain number of complementary lights. This system has automatic control and manual control modes. The automatic control mode can automatically maintain illumination in the desired range according to the selected type of crops in greenhouse. In manual control mode, shading film and light needs to adjust manually. Tests showed that the system can compensate for manual control error and low efficiency defects and has strong practicality.%阐述了一个基于单片机的温室光照度控制系统，利用数字式光照度传感器(BH1750FVI)检测温室内外的光照度，根据不同作物生长所需的适宜光照范围，选择挡上遮光膜或开启一定数量的补光灯。此系统有自动控制和手动控制两种工作模式。在自动控制模式下，根据选定的作物的种类自动使温室光照度保持在作物所需的范围，在手动控制模式下，遮光膜的打开和遮盖以及补光系统的开启都需要人为来完成。试验表明：该系统可以弥补人工控制误差大、效率低等缺陷，具有操作简单、使用方便的优点，具有较强的实用性。