Trilateration Method For Estimating Location in RSSI-Based Indoor Positioning System Using Zigbee Protocol

Pujiharsono, Herryawan; Utami, Duwi; Ainul, Rafina Destiarti

doi:10.20895/infotel.v12i1.380

Cited by 10 publications

(10 citation statements)

References 6 publications

(8 reference statements)

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“…There are two main approaches to the RSSI proximity estimation namely, RSSI trilateration and the fingerprinting methods [ 137 , 138 ]. The major weakness of the RSSI methods is that the performance is largely dependent on factors that vary once there is an environmental change.…”

Section: Technology-based Contact Tracing Methods Against Covid-19mentioning

confidence: 99%

Non-Pharmaceutical Interventions against COVID-19 Pandemic: Review of Contact Tracing and Social Distancing Technologies, Protocols, Apps, Security and Open Research Directions

Alo¹,

Nkwo²,

Nweke

et al. 2021

Sensors

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The COVID-19 Pandemic has punched a devastating blow on the majority of the world’s population. Millions of people have been infected while hundreds of thousands have died of the disease throwing many families into mourning and other psychological torments. It has also crippled the economy of many countries of the world leading to job losses, high inflation, and dwindling Gross Domestic Product (GDP). The duo of social distancing and contact tracing are the major technological-based non-pharmaceutical public health intervention strategies adopted for combating the dreaded disease. These technologies have been deployed by different countries around the world to achieve effective and efficient means of maintaining appropriate distance and tracking the transmission pattern of the diseases or identifying those at high risk of infecting others. This paper aims to synthesize the research efforts on contact tracing and social distancing to minimize the spread of COVID-19. The paper critically and comprehensively reviews contact tracing technologies, protocols, and mobile applications (apps) that were recently developed and deployed against the coronavirus disease. Furthermore, the paper discusses social distancing technologies, appropriate methods to maintain distances, regulations, isolation/quarantine, and interaction strategies. In addition, the paper highlights different security/privacy vulnerabilities identified in contact tracing and social distancing technologies and solutions against these vulnerabilities. We also x-rayed the strengths and weaknesses of the various technologies concerning their application in contact tracing and social distancing. Finally, the paper proposed insightful recommendations and open research directions in contact tracing and social distancing that could assist researchers, developers, and governments in implementing new technological methods to combat the menace of COVID-19.

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Section: Technology-based Contact Tracing Methods Against Covid-19mentioning

confidence: 99%

Non-Pharmaceutical Interventions against COVID-19 Pandemic: Review of Contact Tracing and Social Distancing Technologies, Protocols, Apps, Security and Open Research Directions

Alo¹,

Nkwo²,

Nweke

et al. 2021

Sensors

View full text Add to dashboard Cite

show abstract

“…e positioning method based on ranging first converts the wireless signal strength into the distance between two nodes and then uses related geometric methods, such as the relationship between three sides or triangles for positioning [11].…”

Section: Analysis Of Illegal Movement Behaviormentioning

confidence: 99%

Detection of Illegal Movement in Radioactive Material Transportation Security Systems

Zeng

Yang

Wan

et al. 2021

Science and Technology of Nuclear Installations

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The loss and theft of radioactive material in transport can be attributed to the illegal movement. In order to distinguish it from the movement caused by the turbulence of the transportation vehicle, this paper proposes the criterion of “illegal movement” as the movement of radioactive materials outside the transportation compartment. Since the interior of the compartment is generally a metal environment, this paper proposes wireless signal strength data as a sensing method. The wireless signal strength data is filtered and converted into distance data. We construct a spatial triangle perpendicular to the top and sides of the compartment based on the distance data. When the radioactive material is inside the compartment, the angle between its corresponding point and the top plane of the compartment is less than 90°. Once it moves out of the compartment, the angle will be greater than 90°. Based on this, a sensing method of “illegal movement” based on spatial triangles is proposed. The simulation research shows that the scheme proposed in this paper is feasible.

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“…The RSS measurement result is obtained on some specific distance value. Finding the equal function is calculated using the regression method, so the signal strength measured next would be calibrated using the generated function [27]. The alpha distance value is obtained in an image form for the Dual-Sight Perspective design, so the alpha value is in pixel value.…”

Section: System Modellingmentioning

confidence: 99%

“…Suppose that (Pbx, Pby) is the estimated values and (Prx, Pry) is the actual coordinate. Then, M is the number of estimation points taken as the number of scenarios that follow [27].…”

Section: K Estimation Coordinates Errorsmentioning

confidence: 99%

Object Position Estimation based on Dual Sight Perspective Configuration

et al. 2021

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Development of the coordination system requires the dataset because the dataset could provide information around the system that the coordination system can use to make decisions. Therefore, the capability to process and display data-related positions of objects around the robots is necessary. This paper provides a method to predict an object’s position. This method is based on the Indoor Positioning System (IPS) idea and object position estimation with the multi-camera system (i.e., stereo vision). This method needs two input data to estimate the ball position: the input image and the robot’s relative position. The approach adopts simple and easy calculation technics: trigonometry, angle rotations, and linear function. This method was tested on a ROS and Gazebo simulation platform. The experimental result shows that this configuration could estimate the object’s position with Mean Squared Error was 0.383 meters. Besides, R squared distance calibration value is 0.9932, which implies that this system worked very well at estimating an object’s position.

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Trilateration Method For Estimating Location in RSSI-Based Indoor Positioning System Using Zigbee Protocol

Cited by 10 publications

References 6 publications

Non-Pharmaceutical Interventions against COVID-19 Pandemic: Review of Contact Tracing and Social Distancing Technologies, Protocols, Apps, Security and Open Research Directions

Non-Pharmaceutical Interventions against COVID-19 Pandemic: Review of Contact Tracing and Social Distancing Technologies, Protocols, Apps, Security and Open Research Directions

Detection of Illegal Movement in Radioactive Material Transportation Security Systems

Object Position Estimation based on Dual Sight Perspective Configuration

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