The topsoil moisture monitoring terminal is an online monitoring device used to monitor soil profile temperature, humidity, and conductivity. It integrates soil temperature, moisture, and conductivity sensors and is suitable for water-saving agricultural irrigation, greenhouses, meteorological monitoring, environmental monitoring, grasslands and pastures, rapid soil testing, flower and vegetable cultivation, plant cultivation, scientific experiments, and other fields. It can continuously and dynamically monitor and intelligently analyze soil moisture and temperature at different depths.
The topsoil moisture monitoring terminal is an online monitoring device used to monitor soil profile temperature, soil profile humidity, and soil profile conductivity. It integrates soil temperature, moisture, and conductivity sensors and can directly and stably reflect the true moisture content of various soil types. The device adopts a tubular structure design, and a single sensor can simultaneously measure soil parameters at multiple depths. The monitoring depth is customizable and suitable for long-term unmanned field monitoring scenarios.
In terms of technical parameters, the soil temperature measurement range is -30 to 70 degrees Celsius, with an accuracy of ±0.3 degrees Celsius and a resolution of 0.01 degrees Celsius. The soil moisture measurement range is 0 to 100%, with an accuracy of ±3% and a resolution of 0.1%. Soil conductivity measurement range is 0 to 20,000 microsiemens per centimeter; within the 0 to 10,000 microsiemens per centimeter range, the accuracy is ±3%, and the full-range accuracy is ±5%, with a resolution of 1 microsiemens per centimeter. The device establishes a mathematical model by measuring the soil dielectric constant and uses a spiral measuring electrode to measure soil volumetric water content data, which improves the contact between the sensor and the soil and minimizes measurement errors caused by air gaps.
Each layer of the topsoil moisture monitoring terminal's sensors can independently measure temperature, humidity, and conductivity parameters. The sensor housing is made of imported PC material, which is high-strength, corrosion-resistant, and environmentally friendly, with an IP67 waterproof rating, suitable for long-term outdoor monitoring. The device consumes as little as 0.26 watts and is equipped with a solar panel and a built-in lithium battery, making it suitable for outdoor environments without mains power. Communication supports the 485 Modbus RTU protocol and can be connected to an IoT platform for remote data transmission.
This device can be widely used in multiple fields. In water-saving agricultural irrigation, it can monitor soil moisture in fields, greenhouses, orchards, and tea gardens, assisting in precise irrigation decisions. In meteorological and environmental monitoring, it can serve as part of a ground-based observation network, providing soil moisture and temperature data. In greenhouses and flower and vegetable cultivation, it can monitor the soil environment in the crop root zone, guiding precise fertilization and irrigation. In grasslands, pastures, and plant cultivation, it can be used for monitoring forage growth and conducting plant physiological research. In scientific experiments, it can provide long-term, continuous soil data support for agricultural research.
The topsoil moisture monitoring terminal can continuously and dynamically monitor soil moisture and temperature in real time, and intelligently analyze soil moisture content and environmental meteorological information at different depths. The device can connect to a cloud platform, supporting real-time data viewing on mobile apps and computers, and features data storage, historical curve analysis, and threshold alarm functions. Through long-term accumulated systematic moisture data, the impact of different irrigation strategies on soil hydrothermal conditions can be analyzed, helping to optimize water management plans and upgrade from experience-based decision-making to data-driven decision-making.
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