Thiết kế xây dựng hệ thống điều khiển tưới tự động dựa trên khả năng trữ ẩm của đất

• Tác giả: Minh Tân Phạm, Văn Quang Phạm
• Ngôn ngữ: vie
• Ký hiệu phân loại: 551.48 Hydrology
• Thông tin xuất bản: Agu international journal of sciences, 2017
• Mô tả vật lý: Đại học An Giang
• Bộ sưu tập: Metadata
• ID: 577710

Tóm tắt

Design and build an automatic irrigation control system that is compatible with the meteorological, hydrological and environmental monitoring sensors. Soil moisture determination system based on flip-flop technique. The voltage signals read from the two electrodes of the soil moisture sensor are converted to digital form and sent to the analytical center processor to make a decision to control the opening / closing of the irrigation system. The signal analysis process at the central processor is implemented based on the function function (determined based on experimental data) combined with the open control algorithm. Result: the system works well in monitoring and controlling automatically the process of turning on / off the irrigation system in outdoor conditions. Soil moisture can be detected in the range of 5% to 50% with 95% confidence, so it can be suitable for most types of soil in the Mekong Delta.