Soil moisture estimation method and device based on Beidou navigation data of smart phone

The Beidou navigation data is received through a smartphone, combined with data processing and experimental design, a linear relationship between soil moisture and signal-to-noise ratio was established, solving the problem that traditional methods are difficult to accurately monitor large areas of soil moisture, and achieving high-precision and flexible soil moisture estimation.

CN114878601BActive Publication Date: 2025-03-18WUHAN UNIV
2 Cites 0 Cited by

Patent Information

Application Number
CN202210609024.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-05-31
Publication Date
2025-03-18
Estimated Expiration
2042-05-31

AI Technical Summary

Technical Problem

The prior art is difficult to accurately and timely monitor and reflect the moisture characteristics of large areas of soil, and traditional remote sensing methods have the problem of limited accuracy.

Method used

Receive Beidou navigation data through a smartphone, obtain direct and reflected data in time, perform filtering and visualization processing, and combine the mobile phone antenna orientation, fixing method, terrain undulation and soil roughness factors to conduct experiments that change with space and time to establish a linear relationship between signal-to-noise ratio and soil moisture.

Benefits of technology

A soil moisture estimation method that flexibly selects experimental areas and obtains data in real time is realized. It has higher accuracy and generalization than traditional methods, and can effectively reflect the changing trend of soil moisture.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The present invention provides a soil moisture estimation method and device based on Beidou navigation data of a smartphone. The method comprises: step 1: using a smartphone to obtain direct and reflected data in time; step 2: filtering and visualizing the reflected data and direct data; step 3: adding the influencing factors of the direction of the mobile phone antenna, the way the mobile phone is fixed, the terrain undulation, and the soil roughness, and determining the external conditions to be met during the formal measurement; step 4: conducting experiments with spatial variations and experiments with temporal variations, and obtaining the linear relationship between the signal-to-noise ratio value and the in-situ soil moisture from the experimental data. The present invention attempts to estimate soil moisture using the Beidou signal signal-to-noise ratio of a smartphone for the first time. Compared with traditional fixed receivers, the experimental area can be flexibly selected to obtain real-time data on the spot. Moreover, the Beidou GEO satellite is stationary relative to the ground, and the position of the reflection area is fixed and easy to calculate, and it has strong generalization in daily life.
Need to check novelty before this filing date? Find Prior Art