How Much Do You Know About Smart Irrigation?
Irrigation is the most difficult problem in agriculture. For large-scale planting, traditional artificial irrigation is not only a waste of manpower, but also can not accurately grasp the amount of soil moisture, which leads to uneven irrigation and waste of water resources in varying degrees. Such irrigation is avoided as far as possible for crops. It will cause drought or water logging in some areas, and will also affect the growth status, yield and product quality of crops.
Smart irrigation, as its name implies, is an automatic irrigation mode that automatically senses irrigation demand information and automatically performs irrigation operation tasks without manual monitoring. Smart irrigation comprehensively applies modern technologies such as computer technology, sensor technology and wireless communication technology. At present, it is widely used in agricultural development and garden construction, which makes the irrigation activity transition from labor-intensive to technology intensive. At the same time, it also makes a significant contribution to the sustainable utilization of water resources in China.
Smart irrigation can be divided into many types according to the control mode and power source. The most commonly used systems are: wireless remote control, solar energy and bus control, which can be reasonably selected according to the actual situation.
Bus controlled irrigation
Bus controlled irrigation system refers to the control of the whole irrigation system with bus control as the measurement and control terminal. In the bus controlled irrigation system, each measurement and control terminal is relatively independent, which can independently collect, integrate, judge and basic irrigation water demand information. Firstly, the vegetation water demand information is collected by each measurement and control terminal, and then transmitted to the central computer monitoring system, which generates garden irrigation parameters after unified analysis and processing, and automatically starts and adjusts the irrigation system for irrigation. The system also sets up an expert system, which can invite relevant experts to provide personalized guidance for garden irrigation in combination with the data stored in the system and the actual growth of vegetation, so as to make irrigation more scientific, intuitive and efficient and more intuitive. Compared with wireless remote control, bus control covers a wider range, but the overall investment cost is lower. Therefore, it has high application value.
Wireless remote control irrigation
Wireless remote control irrigation system refers to the system with remote terminal unit as information transfer station to assist irrigation. Specifically, the remote terminal is responsible for collecting vegetation fertilizer and water demand information, and then transmitting the information to the central control system through GSM (global mobile communication system). After information analysis, a series of automatic irrigation operations are completed through remote control. The biggest feature of this irrigation system is that it integrates science and technology and modernity, and makes full use of GSM network technology. It not only has simple structure, few transmission lines, but also has small maintenance investment in the later stage. The overall investment cost of the system is not high, so it can be widely popularized.
Solar energy irrigation
Solar energy irrigation refers to using solar energy as starting energy to use water resources such as streams and groundwater for garden irrigation. The solar energy irrigation system is mainly composed of rain detector and solar panel. The function of rain detector is to detect rainy weather. If rain weather is detected, the system will be shut down by itself. The main function of solar panel is to absorb solar energy and convert it into electric pump power to provide power for electric pump to extract water. After the solar energy irrigation system extracts the water source, it will be transported to the water storage tank for storage, and then irrigated by the sprinkler in the uphill direction. The irrigation system is mostly used for irrigation in remote areas without tap water.
The emergence of smart irrigation system solves the irrigation problem in intelligent agriculture. The smart irrigation system first compares the data monitored by the soil moisture sensor in the area with the big data of intelligent agriculture, or compares the collected data with the upper and lower limits of irrigation and stop irrigation set by the user, and then determines whether irrigation is needed or whether sprinkler irrigation or drip irrigation is started. Due to the use of sensor network, smart irrigation system can realize real-time monitoring, display and dynamic management of irrigation water. Wireless sensor is used to monitor soil moisture, which effectively realizes the automatic management of irrigation water.
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