Real-time Visitor’s Behavior Analysis System via Ultra-Wide Band Radar

2019 ◽  
Vol 8 (4) ◽  
pp. 85-90
Author(s):  
Joosoon Lee ◽  
Hogeon Seo ◽  
Kyoobin Lee
Author(s):  
Ahmet Aktaş

Nowadays, with the development of ultra-wide band antennas and internet of thing technologies, tracing systems are being developed in many fields such as security, health, mining and transportation. The accuracy location estimation issue is becoming very important in areas of application where occupational health and safety are high. In these applications, the transfer of information between the target and the manager, whose location must be accuracy known, has become indispensable. Especially when the target person is human, the movement parameters such as speed, acceleration, position and altitude compose the calculation parameters of the central management system. The information to be sent by the worker in emergency situations and warnings explain the need for real-time location systems to avoid a possible occupational accident. This paper includes real-time location system structure and improved accuracy location control algorithm, which are being used in occupational health and safety, hospital, storage, mine and tracing areas. The real-time location system was designed using a DWM1000 location sensor module with an ultra-wide band integrated antenna. Product usage time has been extended in designed real-time location cards with low power consuming processors. An accuracy positioning control algorithm has been improved to quickly and exactly locate the target to be tracked. With this algorithm, a new approach to real-time location systems has been introduced and worker tracing, information and warning systems are made with fast response time. The control cards developed in a sample workspace were tested and the application results on the developed computer virtual map interface were given.


2009 ◽  
Vol 15 (4) ◽  
pp. 325-336 ◽  
Author(s):  
Alberto Giretti ◽  
Alessandro Carbonari ◽  
Berardo Naticchia ◽  
Mario De Grassi

This paper reports a feasibility study which addressed the development of a new, advanced system mainly devoted to automatic real‐time health and safety management on construction sites. The preliminary analyses and experiments described in this paper concern two of the most important functionalities which must be included in the system's final release. The first functionality consists in real‐time position‐tracking of workers involved on construction sites and the second ‐ in a software tool for the prevention of non‐authorized access to dangerous zones. This research step is part of a vaster, ongoing research project, addressing the development of a new generation of advanced construction management systems which allow real‐time monitoring and coordination of tasks, automatic health and safety management, on‐site delivery of technical information and the capture of “as‐built” documentation. This paper focuses mainly on the development of a reliable methodology for real‐time monitoring of the position of both workers and equipment in outdoor construction sites by applying Ultra Wide Band (UWB) based technologies. This positioning system was then interfaced with a software tool which performs virtual fencing of pre‐selected, dangerous areas. Guidelines for the design of the receivers’ topology will be addressed and the results of measurements recorded on a typical medium‐sized block of flats, during different phases of the construction progress will be summed up. Finally, the preliminary experimental results obtained by the virtual fencing application tool will be presented and used to plan future research objectives. Santrauka Straipsnyje aptartos naujos automatinės darbo ir saugos valdymo sistemos statybos aikštelėje kūrimo galimybės. Aprašytos preliminarios analizės ir eksperimentai – du pagrindiniai veiksniai, kurie turi būti įtraukti į galutinį sistemos variantą. Pirmasis veiksnys susijęs su statybos aikštelės darbininkų padėties realiu laiku nustatymu. Kompiuterine programa ribojamas jų patekimas į pavojingas neleistinas zonas. Šie tyrimai yra didelio besitęsiančio projekto dalis. Projektas susijęs su naujos kartos statybos valdymo sistemos kūrimu. Sistema leis kontroliuoti statybos eigą realiu laiku, užtikrinti automatinį darbų saugos valdymą, techninės informacijos ir dokumentacijos gavimą. Straipsnyje pagrindinis dėmesys sukoncentruotas į patikimos metodikos kūrimą. Taikant šią metodiką ir ultraplačiajuosčio bevielio ryšio (angl. Ultra Wide Band (UWB)) technologiją, galima bus nustatyti darbininkų ir įrangos padėtį atvirose statybos aikštelėse realiu laiku. Ši nustatymo sistema per grafinę terpę yra sujungta su programine įranga, kuri sukuria virtualų aptvarą iš anksto nurodytoms pavojingoms zonoms. Pateiktos imtuvo topologijos projektavimo rekomendacijos. Įvertinti tipinių vidutinio dydžio butų blokų užfiksuotų matavimų rezultatai skirtingais statybos etapais. Pateikti preliminarūs eksperimentiniai rezultatai, gauti įvedus virtualaus aptvėrimo koncepciją. Šie rezultatai bus panaudoti planuojant būsimų tyrimų tikslus.


2012 ◽  
Vol 566 ◽  
pp. 707-711
Author(s):  
Song Li Hou ◽  
Yuan Li

By research of the current network traffic idenfication methods and typical network user behavior analysis methods,a online network user behavior analysis model has been designed and implemented. In order to achieve internal network user behavior real-time monitoring and online analysis purposes.


Author(s):  
Waleed Umer ◽  
Mohsin K. Siddiqui

Ultra wide band (UWB)-based real-time location systems (RTLSs) have been widely adopted in the manufacturing industry for tracking tools, materials, and ensuring safety. Researchers in the construction domain have investigated similar uses for UWB-based RTLSs on construction jobsites. However, most of these investigations comprised small-scale experiments using average accuracy only to demonstrate use cases for the technology. Furthermore, they did not consider alternative deployment scenarios for practically feasible deployment of the technology. To overcome these limitations, a series of experiments were performed to study the feasibility of a commercially available RTLS on the construction jobsites. The focus of the work was on feasibility in terms of accuracy analysis of the system for a large experimental site, the level of effort requirements for deployment, and the impact of deployment alternatives on the accuracy of the system. The results found that average accuracy was found to be a misleading indicator of the perceived system performance (i.e., 95th percentile values were considerably higher than average values). Moreover, accuracy is significantly affected by the deployment alternatives. Collectively, the results arising from the study could help construction/safety managers in decision making related to the deployment of UWB-based RTLSs for their construction sites.


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