ABSTRACT
In the process of major projects construction and operation,the reliability and safety of
control in the construction field becomes a system engineering of urgent and inevitable
trend.To master the temperature parameters of the building structure, usually the temperature
sensors is disposed in the surface of the structure, collecting relevant data, in order to grasp
the structure temperature information in real time. To monitor the staff position in each layer
of construction building, it must be through indoor wireless location technology to obtain the
specific location information of builders.This paper presents in Internet of things by using
RFID and WSN technology synergy to monitoring the temperature of building structure in
real-time, dynamic acquisition any specific structure node’s location parameters, monitoring
the specific geographic position information of builders in real-time through indoor
positioning technology of WLAN and BLE 4.0 combined,make signal transmission real-time,
accuracy, integrity,make it possible to monitor building structure data and corresponding
location information remotely and wirelessly.In this way technicians in remote field can
conveniently monitor the building state changes, guide the field builders to work safely and
reliablely.
The main works of this paper are:
Firstly, introduce the widely used monitoring technology in the engineering construction,
analyze the various monitoring techniques, because of some problems of construction
monitoring methods and equipments, RFID and WSN coordinated technology is proposed to
monitor the building structure remotely and wirelessly .
Secondly, overview the various types of commonly used indoor wireless location
technology, and evaluate their performance accuracy, stability and real-time.Introduce the
principle of WLAN based positioning technology and analyze the Fingerprint Positioning
method.According to the sampling signal of errors and poor stability problem, put forward the
indoor positioning technology of WLAN and BLE4.0.
Finally, according to the indoor positioning technology of WLAN and BLE4.0,through
the Calman filter theoretical model make two kinds of sensor multiode fusion with feature
level, in order to improve the position accuracy and robustness. And the system overall
architecture will be designed and implemented from three part of the WiFi and BLE4.0
sensors AP station, server, client.The system is tested comprehensively, most of the function
can achieve the expected effect, and the user experience can be quickly responsed.
Keywords: building structure detecting, WLAN, BLE4.0, positioning
system, location fingerprint
目 录
中文摘要
ABSTRACT
第一章 绪论................................................................................................................................1
1.1 研究背景与意义............................................................................................................1
1.2 国内外研究现状............................................................................................................2
1.3 主要研究工作及结构安排............................................................................................3