Wireless multipoint soil resistivity measuring system

Abstract

The invention discloses a wireless multipoint soil resistivity measuring system. A soil resistivity measuring circuit is designed according to a principle of 'current-voltage four-electrode method', and a self-made mini-probe is used for reducing the interference on movement of a soil solute and can also carry out high-density distribution measurement. A wireless communication circuit of the wireless multipoint soil resistivity measuring system is an nRF24L01 wireless module which can form one 'one-to-many' communication network, thereby realizing multipoint measurement on the soil resistivity. The wireless multipoint soil resistivity measuring system establishes a measurement platform by a master-slave mode structure, a master machine finishes functions of receiving, processing, displaying and storing data of the soil resistivity, and a slave machine finishes functions of collecting and transmitting the data of the soil resistivity, thus a problem of consistency on multipoint soil resistivity real-time measurement is effectively solved. Based on test results, the wireless multipoint soil resistivity measuring system has excellent stability and practicability, and the soil resistivity, the saltness and the water content are of excellent linear relationship.

Description

technical field [0001] The invention relates to a system for measuring soil resistivity, in particular to a wireless multi-point soil resistivity measurement system. Background technique [0002] In the 21st century, agriculture has reached a very developed level, which is mainly due to the extensive use of chemical fertilizers and pesticides. While these chemicals bring high agricultural yields, they also cause many problems such as agricultural soil erosion, decreased soil productivity, and deterioration of the ecological environment of agricultural products and groundwater, which seriously hinders the sustainable development of agriculture. It is in this situation that precision agriculture technology emerges at the historic moment. [0003] Precision agriculture is a modern agricultural concept. The so-called precision agriculture refers to a field management method based on variation. The characteristics of soil and crops in farmland are not uniform, but change with ...

AI Technical Summary

Problems solved by technology

This traditional laboratory method has high precision as a standard measurement method, and is also a benchmark for evaluating soil resistivity, but the measurement process is cumbersome, and it takes a long time, and the real-time performance is poor, which cannot meet the requirements of modern precision agriculture in a short time Completion of high-volume measurement requirements

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