文档介绍：原文
A Design of Remote Monitoring System based on 3G and Technology
Shouxian WEN
Key Lab of puting and Signal Processing of
Ministry of Education, Anhui University
Hefei, China
Xingguo SUN
Key Lab of puting and Signal Processing of
Ministry of Education, Anhui University
Hefei, China
Lei XU
Key Lab of puting and Signal Processing of
Ministry of Education, Anhui University
Hefei, China
Xiaohui LI
Key Lab of puting and Signal Processing of
Ministry of Education, Anhui University
Hefei, China
Abstract — Aiming at the low-rate and short-distance
communication in existing temperature and humidity monitoring
system, this paper designs a remote monitoring system based on
3G and technology. This system consists of data
acquisition module and data remote transmission module.
Atmega128 is used to be as a master control chip of data
acquisition module, which realizes the data acquisition and
pretreatment, and the collected data is transmitted to the host
node by the low-power wireless transmission module NRF905
which is installed on slave nodes, and then the converged data is
transmitted to by 3G module. The system can realize
remote monitoring, centralized management and so on. The
experimental results show that the system has the advantages
of
low installation cost, low consumption, high sensitivity, high
accuracy, long-munication and high rate etc.
Keywords-DS18B20; 3G; NRF905; Standard Definition (SD)
card; Data acquisition subsystem; Data remote transmission
subsystem.
I. INTRODUCTION
With the rapid development works and
communication technologies, remote monitoring technology in
the data acquisition and analysis has been widely used [1-7].
The traditional data acquisition system generally uses the
computer (PC) – slave node mode. Slave nodes use a wired
connection so that wiring tedious, poor scalability. Especially
for the vast space environment, if a wired connection is used,
the cost and power consumption is high. In ad