摘要
为了提高现代化温室的自动化控制功能,提高温室作物的产量,设计了一种新型基于PID反馈调节的微喷灌溉装置。该装置采用单片机反馈调节功能,可根据实测环境的温度和湿度进行水肥一体化灌溉,保证了作物的水分和肥料的供给,有效地提高了作物的产量。采用AT89C52单片机作为水肥一体化灌溉的控制器,使用模糊PID控制算法对微灌管的流量进行调节,具有多路控制功能,在无人值守的情况下,可以实现温度和湿度的实时监测,性价比较高,灵活性较好。对水肥一体化微喷灌装置进行了测试,结果表明:系统运行较为平稳,没有发生较大的振荡,控制效果较好。对不同滴灌量下的作物产量进行了测试,得到了最大产量下合适的灌溉量。
In order to improve the automation of modern greenhouse control function, it can improve the greenhouse crop production design a model based on PID feedback regulation of micro spray irrigation device. The device uses the mono- lithic integrated circuit feedback regulation function, which can be carried out according to the temperature and humidity of the environment field of integration of irrigation and fertilization, so as to ensure the supply of water and fertilizer of crops. It effectively improve the crop yield. The AT89C52 microcontroller is as controller of the integration of irrigation and fertilization by using fuzzy PID control algorithm to regulate the flow of micro irrigation pipe, with multiple control functions,in the unattended it can realize real-time monitoring of temperature and humidity, high ratio of performance to price, flexibility is good. Integrated management of water and fertilizer for micro irrigation device is tested, the results show that using fuzzy controller to greenhouse micro irrigation tubing flow control, the system run more smoothly, no large oscillation, control effect is good. Under the effect of different burette volume of crop yield of experimental test, through testing the maximum yield under the appropriate amount of irrigation. By using micro spray irrigation system, it can be successfully of sprinkling quantity of real-time adjustment, thus enhancing the degree of automation of greenhouse operation.
出处
《农机化研究》
北大核心
2017年第9期134-138,共5页
Journal of Agricultural Mechanization Research
基金
江西省高等学校教学研究项目(JXJG-12-55-4)
