Soil ion concentration detection and monitoring system and method based on NB-IoT

Abstract

The invention relates to the technical field of soil ion concentration detection, and discloses an NB-IoT-based soil ion concentration detection and monitoring system and a monitoring method.The NB-IoT-based soil ion concentration detection and monitoring system comprises an ion selective electrode sensor, a low-power-consumption processor and an NB-IoT communication module, the low-power-consumption processor is connected with a cloud data port through the NB-IoT communication module, and the NB-IoT communication module is connected with the cloud data port; and sending the detected sensor data to a cloud data port. According to the NB-IoT-based soil ion concentration detection device and the remote monitoring system, an NB-IoT technology is combined with an all-solid-state ion selective electrode sensor, remote detection and real-time monitoring of a soil microenvironment state are realized, the device can detect concentration parameters of ions such as potassium, calcium, sodium, magnesium and chlorine by virtue of an ion selective electrode at the front end, and the device is simple in structure and convenient to use. Compared with a traditional soil ion concentration detection method, the ion concentration detection range is widened, and the condition of nutrients needed in the growth and development process of plants can be comprehensively monitored.

Description

technical field [0001] The invention relates to the technical field of soil ion concentration detection, in particular to a soil ion concentration detection device and a remote monitoring system based on NB-IoT, and a remote monitoring method. Background technique [0002] Soil is composed of minerals, organic matter, water and air. It is formed and developed by the weathering of rocks under the combined action of biology, climate, terrain and other factors. It can supply and regulate the water, nutrients, air and soil required for plant growth. Heat, human agricultural production activities have an impact on the soil on cultivated land. The soil microenvironment is relatively complex, and its temperature, humidity, moisture, pH, and ion concentration are constantly changing. The state information of the microenvironment will directly affect the plant body. Therefore, it is particularly important to grasp the changes and state information of soil microenvironment in real tim...

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Problems solved by technology

[0003] Among the conventional technologies for detecting soil microenvironment, X-ray fluorescence spectrometer can quickly analyze the element content in soil. Although the test time is short, only a few seconds to a few minutes, the detection steps are very complicated, and soil samples need to be sampled and prepared. The state requirements are high, and the equipment is inconvenient to carry. In the field of portable detection, the soil moisture detection sensor with a probe is connected to the front end to collect parameter information such as soil temperature and humidity, moisture, conductivity, nitrogen, phosphorus, potassium, and pH value, and then pass GPRS , 4G, Wi-Fi, Bluetooth and other communication methods to transmit data. The number of data collected by front-end sensors in this method is small, and only the concentration parameters of nitrogen, phosphorus and potassium ions can be collected. For such ion concentration parameters as potassium, calcium, sodium, magnesium and chlorine, it cannot Detection, the concentration of these ions often also affects the growth and development of plants, and is greatly affected by the soil microenvironment, the accuracy is not high, and the communication methods relied on by the back end, such as GPRS, 4G, Wi-Fi, etc. High, for the outdoor unmanned detection environment, it is impossible to achieve long-term low-energy detection, and it needs to be connected to an external power supply or a large battery, which is not conducive to portable detection, and the short-distance wireless communication method like Bluetooth is also limited by the communication distance. Limitations, unable to achieve long-distance real-time monitoring

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