蔬菜大棚智能数据采集系统的设计课案.doc

学 号__1109111055 _ 毕 业 论 文（设计） 课 题 蔬菜大棚智能数据采集系统的设计 学生姓名 徐 飞 院 部 电气工程学院 专业班级 自动化一班 指导教师 杨 路 二 〇 一 五 年 五 月 摘 要 随着经济的快速发展，人们对蔬菜的需求大幅度提高，大棚蔬菜种植技术在我国迅速发展起来，目前虽然生产规模巨大，但蔬菜大棚设备陈旧，数据采集方式落后，自动化、智能化水平低，不利于蔬菜大棚的推广和蔬菜产量的提高，也不利于我国农业的长远发展。 温度、空气湿度、光照强度、二氧化碳浓度等控制因子是蔬菜大棚种植环境的主要参数，蔬菜的生长速度、品质与这些参数有着密切的关系，有效的控制这此因子可提高蔬菜产量与质量 ，达到省时省力与增产增收的目标。 本系统以STC89C52单片机为主控芯片，采用了无线通信模块nRF24L01模块，利用DHT11传感器检测温度、湿度、BH1750fvi传感器检测光照强度、红外二氧化碳传感器检测CO2浓度，通过nRF24L01模块进行无线传输采集数据，从而实现了对环境因素的精确采集。 关键字：单片机；STC89C52；无线传输；nRF24L01；DHT11；BH1750fvi Abstract With the rapid development of economy, people of vegetable of the substantial increase in demand, greenhouse vegetable planting technology develops rapidly in our country, at present although the production scale is huge, but vegetable greenhouses obsolete equipment, backward and the way of data collection, automation, intelligent level low adverse in greenhouse vegetable promotion and vegetable yield increase, is not conducive to the long-term development of Chinas agriculture. Temperature, air humidity, light Zhao intensity and carbon dioxide concentration control factor is the main parameters of greenhouse cultivation environment, vegetable growth speed, quality, and these parameters have close relationship, and effectively control the factor can improve the yield and quality of vegetables, achieve the goal of saving time and increase production. The system to STC89C52 microcontroller as the main control chip, the wireless communication module nRF24L01 module, using DHT11 sensor detects the temperature, humidity, illumination intensity, infrared carbon dioxide sensor for the detection of CO2 concentration BH1750fvi sensor detection and by module nRF24L01 wireless transmission data acquisition, so as to realize the accurate acquisition of environmental factors. Key word: MCU；STC89C52；wireless transmis