Research On Remote Data Acquisition System Of Portable Soil Total Nitrogen Detector

Precision agriculture is the development direction of modern agriculture.It is a prediction of agriculture based on information technology.In order to meet the requirements of convenience and effectiveness in information transmission,after consulting the literature review,this paper develops a soil information remote acquisition system,using as an auxiliary tool of the portable soil total Nitrogen detector in the laboratory.This system transforms the original soil information collected by the equipment into soil total Nitrogen by data modeling,and through Android software and server software,data can be viewed or managed.The main contents of this paper are as follows:(1)Design of mobile software based on Android technology.Android software combines JDBC technology and LBS technology to view soil total Nitrogen information real-time,and achieves other functions such as classification retrieval,map display and columnar mapping.(2)Design of remote server management software.This is the management center of the whole system.It receives data from hardware devices by Socket communication and stores the data into SQL Server database.At the same time,it can read the information stored in the database,and realize the functions of map display and automatic mapping.(3)Design of SQL Server database.Database is the carrier of data transmission,database is responsible for storing user information,experiment data,group information and so on.At the same time,database interacts with Android software and server software.(4)Prediction of soil total Nitrogen content based on near infrared spectroscopy.Based on data modeling,spectral information is modeled,including spectral data preprocessing,feature wavelength extraction,spectral-total Nitrogen content modeling and model evaluation.The model was applied to the portable soil total Nitrogen detector to realize the prediction of soil total Nitrogen content.This acquisition system can model and transmit the data collected by the original hardware equipment remotely,and realize the real-time data viewing,which can provide reference for the development of related equipment.