scholarly journals Development of IoT-Based Particulate Matter Monitoring System for Construction Sites

2021 ◽  
Vol 18 (21) ◽  
pp. 11510
Author(s):  
Hyunsik Kim ◽  
Sungho Tae ◽  
Pengfei Zheng ◽  
Geonuk Kang ◽  
Hanseung Lee
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Field Application ◽  
Coefficient Of Determination ◽  
Scattering Method ◽  
Construction Site ◽  
Construction Sites ◽  
Accuracy Of Measurements ◽  
Wide Range ◽  
Internet Of Things Technology

Particulate matters (PMs) generated on construction sites can pose serious health risks to field workers and residents living near construction sites. PMs are generated in a wide range of locations; therefore, they must be managed in real time at various locations within construction sites for practical management of the PMs. However, no such systems exist currently. Therefore, this study aims to develop a system that can manage PMs in real time at multiple locations in a construction site using the Internet of Things technology. Accordingly, measuring instrument, network, and program services were developed as system components, while considering the characteristics of construction sites, and the construction site PM monitoring system was developed by integrating these components. Finally, performance certification and field application tests were performed to verify the developed system. The construction site PM monitoring system (CPMS) achieved grade 1 for reproducibility, relative precision, and data acquisition rate, and grade 2 for accuracy and coefficient of determination. Thus, it received a performance certification of grade 2, in total. In particular, regarding accuracy, which is a shortcoming of the light-scattering method and represents the accuracy of measurements, the CPMS was found to have an accuracy of 74.2%.

scholarly journals Research and Design of Distributed IoT Water Environment Monitoring System Based on LoRa

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Wei Chen ◽  
Xiao Hao ◽  
JianRong Lu ◽  
Kui Yan ◽  
Jin Liu ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Temperature ◽  
Real Time ◽  
Monitoring System ◽  
Water Environment ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Environment Monitoring ◽  
Long Distance ◽  
Internet Of Things Technology

In order to solve the problems of high labor cost, long detection period, and low degree of information in current water environment monitoring, this paper proposes a lake water environment monitoring system based on LoRa and Internet of Things technology. The system realizes remote collection, data storage, dynamic monitoring, and pollution alarm for the distributed deployment of multisensor node information (water temperature, pH, turbidity, conductivity, and other water quality parameters). Moreover, the system uses STM32L151C8T6 microprocessor and multiple types of water quality sensors to collect water quality parameters in real time, and the data is packaged and sent to the LoRa gateway remotely by LoRa technology. Then, the gateway completes the bridging of LoRa link to IP link and forwards the water quality information to the Alibaba Cloud server. Finally, end users can realize the water quality control of monitored water area by monitoring management platform. The experimental results show that the system has a good performance in terms of real-time data acquisition accuracy, data transmission reliability, and pollution alarm success rate. The average relative errors of water temperature, pH, turbidity, and conductivity are 0.31%, 0.28%, 3.96%, and 0.71%, respectively. In addition, the signal reception strength of the system within 2 km is better than -81 dBm, and the average packet loss rate is only 94%. In short, the system’s high accuracy, high reliability, and long distance characteristics meet the needs of large area water quality monitoring.

scholarly journals Tension between Productivity and Respect for People in Construction

2020 ◽  
Vol 312 ◽  
pp. 05005
Author(s):  
Lesiba George Mollo ◽  
Fidelis Emuze ◽  
Nicholus Sishuba
Keyword(s):  
South Africa ◽  
Real Time ◽  
Construction Industry ◽  
Management System ◽  
Ethical Reasoning ◽  
Construction Site ◽  
Construction Sites ◽  
Factors Influencing ◽  
Major Factors ◽  
Structured Questionnaire

Productivity in the construction industry is declining in real-time. The decline in productivity is a source of worry for practitioners and researchers. The purpose of this paper is to ascertain major factors influencing productivity in relation to the notion of respects for people (RFP) in construction. The reviewed literature influences the semi-structured questionnaire used to survey construction professionals in Johannesburg, South Africa. The results reaffirm the tension productivity increment and the enhancement of RfP as both ideas appear to be moving in opposite directions on a typical construction site. It was discovered that respect for workers on a construction site is a major concern. The paper argues that ethical reasoning affects productivity. Therefore, an appropriate management system is required to improve the workers' perception of productivity and RfP working on construction sites.

LZER0: GNSS cost-effective real-time positioning applied to landslide monitoring

2020 ◽  
Author(s):  
Lavinia Tunini ◽  
David Zuliani ◽  
Paolo Fabris ◽  
Marco Severin
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Low Cost ◽  
Cost Effective ◽  
Single Frequency ◽  
Landslide Monitoring ◽  
Natural Risk ◽  
Near Surface ◽  
Landslide Event ◽  
Wide Range

<p>The Global Navigation Satellite Systems (GNSS) provide a globally extended dataset of primordial importance for a wide range of applications, such as crustal deformation, topographic measurements, or near surface processes studies. However, the high costs of GNSS receivers and the supporting software can represent a strong limitation for the applicability to landslide monitoring. Low-cost tools and techniques are strongly required to face the plausible risk of losing the equipment during a landslide event.</p><p>Centro di Ricerche Sismologiche (CRS) of Istituto Nazionale di Oceanografia e di Geofisica Sperimentale OGS in collaboration with SoluTOP, in the last years, has developed a cost-effective GNSS device, called LZER0, both for post-processing and real-time applications. The aim is to satisfy the needs of both scientific and professional communities which require low-cost equipment to increase and improve the measurements on structures at risk, such as landslides or buildings, without losing precision.</p><p>The landslide monitoring system implements single-frequency GNSS devices and open source software packages for GNSS positioning, dialoguing through Linux shell scripts. Furthermore a front-end web page has been developed to show real-time tracks. The system allows measuring real-time surface displacements with a centimetre precision and with a cost ten times minor than a standard RTK GPS operational system.</p><p>This monitoring system has been tested and now applied to two landslides in NE- Italy: one near Tolmezzo municipality and one near Brugnera village. Part of the device development has been included inside the project CLARA 'CLoud plAtform and smart underground imaging for natural Risk Assessment' funded by the Italian Ministry of Education, University and Research (MIUR).</p>

The Design of the Ground Freezing Monitoring System Based on Zigbee

2014 ◽  
Vol 494-495 ◽  
pp. 917-920
Author(s):  
Fang Guo ◽  
Jia Yong Duan ◽  
Yan Zhong Zhai
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Communication System ◽  
Project Managers ◽  
Network Communication ◽  
Construction Site ◽  
Real Time Control ◽  
Time Control ◽  
Ground Freezing ◽  
Drive Circuit

In this paper, one ground freezing monitoring system based on Zigbee is designed. System is divided into four parts: sensor cable based on 1-wire technology, monitoring terminal with a drive circuit based on Zigbee, Zigbee coordinator and monitoring host with the function of network. This paper mainly introduces the network communication system. The system is suitable for the construction site of the engineering test; anti-interference and robustness of system are strong. It implements the project managers and experts operation of real-time control without time and space limits for freezing monitoring system. It provides technical support for the application of freezing engineering.

EVALUATION OF ENGINEERING STRUCTURES DEFORMATION (ACCURACY)

2019 ◽  
pp. 77-82
Author(s):  
T. Malik ◽  
Ya. Bryk ◽  
V. Zatserkovnyi ◽  
V. Belenok
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Structure Prediction ◽  
Optoelectronic Devices ◽  
Deformation Monitoring ◽  
Automated System ◽  
Control Panel ◽  
Engineering Structures ◽  
Engineering Structure ◽  
Accuracy Of Measurements

The construction of the model of accuracy of the measuring processes of the automated monitoring system of engineering structures deformations from the point of the theory of accuracy is considered in the article. From the point of view of the generalization of the accuracy of measurements by the automated system of engineering structures monitoring, the construction of the model of the measuring process is considered, resulting in separate characteristics and properties of the object to be investigated. In this case these are values of deformations of engineering constructions' structures. The brief acquaintance with the automated system of monitoring of engineering structures deformations, which represents a chain of optoelectronic devices-deformation marks, which are installed on constructions of structures and fix the created line is given. The use of this system allows to solve the problem of the preventive assessment of the dynamics of local technogenic deformation in the engineering structure and thus to increase the level of technogenic safety of the personnel of the engineering structure. Compared with modern well-known methods and means for determining the engineering structures deformation, an automated deformation monitoring system has the following advantages: 1. Cross-section geodetic control of deformations (position) of elements of the full volume of engineering structure with increased accuracy. 2. Automated control of engineering structures deformations in real time, including in limited or inaccessible for visual measurements places. 3. Control of the technogenic safety of the engineering structure, prediction of the moment of the emergency, warning about the upcoming critical state (moment) of the engineering structure in real time with the accurate definition of a certain area. 4. Installation of the entire monitoring system occurs during the construction of the structure, pre-installation sites of optoelectronic devices - deformation marks are agreed with the designers and architects. 5. The mean square error of measurement of relative deviations of deformations is not less than 0,1-0,5 mm at distances between optoelectronic devices up to 10 m. 6. Information on the magnitude of deviations from the nominal (initial) position goes to the remote central control panel of the system in real time scale. 7. In the case of upcoming moment of dangerous deviation (deformation), the command from the main control panel receives a signal for rapid response with the accurate designation of the place of dangerous deformation.

Research and Implementation of Muck Truck Regulatory System

2013 ◽  
Vol 475-476 ◽  
pp. 719-722
Author(s):  
Li Zhou
Keyword(s):  
Data Analysis ◽  
Internet Of Things ◽  
Real Time ◽  
Monitoring System ◽  
Regulatory System ◽  
The Internet ◽  
Construction Site ◽  
3G Networks ◽  
The Internet Of Things ◽  
Embedded Intelligence

To solve site muck truck regulation difficulty, a muck truck monitoring system is designed and implemented based on 3G networks and the Internet of Things. The system consisted of Hi3515 processors embedded intelligence analyzer, RFID, grating and camera. With the data send from the construction site, a B/S remote regulatory website is built to provide real-time monitoring, evidence preservation, data analysis and data summary.

scholarly journals Implementation of The Internet of Things for Monitoring The Company's Electrical Power Consumption

2021 ◽  
Vol 2 (1) ◽  
pp. 16-22
Author(s):  
Riklan Kango ◽  
Suhaedi Suhaedi ◽  
Fadli Awal Hasanuddin
Keyword(s):  
Internet Of Things ◽  
Power Consumption ◽  
Real Time ◽  
Monitoring System ◽  
Electricity Consumption ◽  
The Internet ◽  
Voltage Measurement ◽  
Monitoring Method ◽  
Internet Of Things Technology ◽  
The Internet Of Things

This research aims to design an electric panel monitoring system using the Internet of Things technology in company buildings so that consumers can monitor real-time electricity consumption. The energy consumption monitoring method that we propose uses PM2100 by implementing a real-time monitoring function of the power consumption of a 3-phase electric panel. The monitoring system implementation results show that the value is very close to measuring the digital multimeter measuring instrument. The monitoring system produces a current measurement accuracy of 97.38% with an error of 2.62%, while the 3-phase voltage measurement error is 0.616%. This system design helps companies obtain information faster to be considered data to improve efficiency in the Company.

scholarly journals Design and research of a smart monitoring system for 2019-nCoV infection-contact isolated people based on blockchain and Internet of things technology

2020 ◽  
Author(s):  
Ling Zheng ◽  
Chunjian Xiao ◽  
Fei Chen ◽  
Yonghong Xiao
Keyword(s):  
Internet Of Things ◽  
Disease Control ◽  
Real Time ◽  
Monitoring System ◽  
Blockchain Technology ◽  
Smart Contract ◽  
Control And Prevention ◽  
Geographical Position ◽  
Coronavirus Infection ◽  
Internet Of Things Technology

Abstract Objective: In order to cope with a sudden outbreak of new coronavirus infection, a large number of potential infected persons need to be isolated. A new smart monitoring system which integrates Internet of things and blockchain technology to monitor isolated people in real time was design and studied.Methods: A internet of things devices will collects the location and physical data of isolated people, the data will be sent to master devices which will integrate and format those data and transfer to a smart contract. A smart contract compares and analyses the data with the threshold which is predefined. When the data exceed the threshold, the smart contract will alert the master device, which will notify the isolated person and center for disease control and prevention, the event will be stored in the consortium blockchain. The blockchain does not store the isolated people's details, which are stored in electronic health records linked to the blockchain to guarantee the data safety.Results: This system realizes the effective real-time monitoring of isolators including their physical condition and geographical position on the premise of protecting their privacy and security.Conclusion: By the system, the center for disease control and prevention can respond quickly according to their alerts. It has the advantages of good integrity, tamper-proof, and transparency to isolators.

Design of Compaction Operation Monitoring System for Intelligent Vibratory Roller Based on Internet of Things

2021 ◽  
Vol 10 (1) ◽  
pp. 50
Author(s):  
Tao Li ◽  
Gangfeng Wang ◽  
Yunxi Zhang
Keyword(s):  
Internet Of Things ◽  
Real Time ◽  
Monitoring System ◽  
The Internet ◽  
Prototype System ◽  
Hardware System ◽  
Sensor Module ◽  
Working Parameters ◽  
Internet Of Things Technology ◽  
The Internet Of Things

In recent years, an intelligent vibratory roller with adjustable mode has become the leading direction for the development of compaction equipment that can obtain the state of the pressed material during the compaction operation and then control the working parameters and the excitation mode of the whole machine according to the condition of the pressed material. The intelligent vibratory roller can better meet today’s requirements for compaction. This paper proposes a compaction operation monitoring system for an intelligent vibratory roller based on the Internet of Things. Firstly, a hardware system for real-time compaction operation monitoring was established, including the selection of a sensor module and signal conditioning module. Secondly, a method for real-time compaction monitoring data evaluation and analysis of compaction was proposed and a detailed analysis process of the compaction data was designed. Finally, the compaction operation monitoring prototype system based on the Internet of Things technology was designed and constructed.

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