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The application of five-pin soil sensor in agriculture

by:Rika Sensors     2021-11-03
The application of five-pin soil sensor in agriculture
Soil is an important natural resource and the material basis of agricultural production. The ability to monitor the parameters and quality of the soil environment is of great significance for guiding the development of agricultural resources and agricultural production. In recent years, my country has paid special attention to the protection of soil resources and the construction of the ecological environment. Monitoring the soil environment has become the daily work of agriculture and environmental protection departments.

There are three traditional methods for monitoring farmland soil moisture temperature, conductivity, and pH: indirect measurement method, direct measurement method, remote sensing and field GPS positioning method. However, these three monitoring methods are either cumbersome and inconvenient to operate; they are too simple to ensure accuracy; or they are time-consuming and costly. All in all, it is lack of timeliness and accuracy, and it is difficult to realize real-time monitoring of farmland environment. In view of this, in order to effectively improve the detection technology and monitoring methods, as well as increase the speed and accuracy of monitoring, it is necessary to use the current advanced five-pin soil sensor.

The five-pin soil sensor is also known as the conductivity soil temperature and moisture PH four-in-one sensor. It is a sensor device introduced for more convenient monitoring of the temperature, humidity, conductivity, and PH value in the soil.

1. Overview of the five-pin sensor

The five-pin soil sensor has the characteristics of stable performance, high sensitivity, fast response, and stable output. It is suitable for all kinds of soil and is an important tool for observing and studying the occurrence, evolution, improvement and water and salt dynamics of saline soil. Can be buried in the soil for a long time, resistant to long-term electrolysis, corrosion resistance, vacuum potting, and completely waterproof. Without destroying the original soil structure, accurately measure soil temperature, moisture, conductivity, and pH.

The sensor is suitable for soil moisture monitoring, scientific experiments, water-saving irrigation, greenhouses, flowers and vegetables, grassland pastures, soil rapid testing, plant cultivation, sewage treatment, precision agriculture and other occasions of temperature and humidity, electrical conductivity, PH Value test.

2. Five-pin sensor data upload method

In order to facilitate managers to understand the soil environment in time, the conductivity, soil temperature and moisture PH four-in-one sensor can be connected to the environmental monitoring host through 485 wiring Upload to the environmental monitoring cloud platform to monitor the soil conditions in real time. It can also coordinate with related soil data to control the irrigation system and other related equipment. Once one of the soil temperature, moisture, conductivity, and PH value exceeds the set upper and lower limits, an alarm will be triggered to notify the management staff for processing.

3. The characteristics of the five-pin sensor

1. The four parameters of soil moisture content, electrical conductivity, temperature and pH value are combined into one.

2. Low threshold, few steps, rapid measurement, no reagents, unlimited detection times.

3. The electrode is made of specially treated alloy material, which can withstand strong external impact and is not easy to damage.

4. Completely sealed, resistant to acid and alkali corrosion, and can be buried in soil or directly into water for long-term dynamic testing.

5. High precision, fast response, good interchangeability, probe insertion design to ensure accurate measurement and reliable performance.

6. It can also be used for the conductivity of water and fertilizer integrated solutions, as well as other nutrient solutions and substrates.

7. High pH measurement accuracy, up to ±0.3PH accuracy, fast response speed and good interchangeability.

4. Installation method of the five-pin soil sensor

Quick measurement method: select a suitable measurement location, avoid rocks, ensure that the steel needle does not touch hard objects, and measure the depth as required Put aside the surface soil, keep the original tightness of the soil below, hold the sensor vertically and insert it into the soil. Do not shake it left and right when inserting it. It is recommended to measure multiple times within a small range of a measuring point to find the average value.

Buried measurement method: Vertically dig a pit with a diameter> 20cm, insert the transmitter steel needle horizontally into the pit wall at a predetermined depth, and fill the pit tightly. After a certain period of time, it can be carried out for several consecutive days. Measure and record for months or even longer.

As one of the three foundations of information technology, sensor technology is a key technology since entering the 21st century. Informatization and intelligence are the focus of the future development of agricultural science. How to cooperate with the Internet of Things technology to quickly and effectively obtain soil information, even though the important research direction of soil science, is also an important technical support for traditional soil environmental monitoring to modern soil environmental monitoring.

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