Analysis of Bluetooth Low Energy Detection Range Improvements for Indoor Environments

2018 ◽  
pp. 598-609 ◽  
Author(s):  
Jay Pancham ◽  
Richard Millham ◽  
Simon James Fong
Keyword(s):  
Energy Detection ◽  
Low Energy ◽  
Indoor Environments ◽  
Detection Range ◽  
Bluetooth Low Energy

scholarly journals A Robust Indoor Positioning Method based on Bluetooth Low Energy with Separate Channel Information

Sensors ◽  
2019 ◽  
Vol 19 (16) ◽  
pp. 3487 ◽  
Author(s):  
Baichuan Huang ◽  
Jingbin Liu ◽  
Wei Sun ◽  
Fan Yang
Keyword(s):  
Indoor Positioning ◽  
Low Energy ◽  
Indoor Environments ◽  
Positioning Error ◽  
Decision Strategy ◽  
Signal Attenuation ◽  
Optimal Position ◽  
Bluetooth Low Energy ◽  
A Value ◽  
Attenuation Models

Among the current indoor positioning technologies, Bluetooth low energy (BLE) has gained increasing attention. In particular, the traditional distance estimation derived from aggregate RSS and signal-attenuation models is generally unstable because of the complicated interference in indoor environments. To improve the adaptability and robustness of the BLE positioning system, we propose making full use of the three separate channels of BLE instead of their combination, which has generally been used before. In the first step, three signal-attenuation models are separately established for each BLE advertising channel in the offline phase, and a more stable distance in the online phase can be acquired by assembling measurements from all three channels with the distance decision strategy. Subsequently, a weighted trilateration method with uncertainties related to the distances derived in the first step is proposed to determine the user’s optimal position. The test results demonstrate that our proposed algorithm for determining the distance error achieves a value of less than 2.2 m at 90%, while for the positioning error, it achieves a value of less than 2.4 m at 90%. Compared with the traditional methods, the positioning error of our method is reduced by 33% to 38% for different smartphones and scenarios.

Tracking a moving user in indoor environments using Bluetooth low energy beacons

2019 ◽  
Vol 98 ◽  
pp. 103288 ◽  
Author(s):  
Didi Surian ◽  
Vitaliy Kim ◽  
Ranjeeta Menon ◽  
Adam G. Dunn ◽  
Vitali Sintchenko ◽  
...  
Keyword(s):  
Low Energy ◽  
Indoor Environments ◽  
Bluetooth Low Energy

WiFi and Bluetooth Low Energy Beacons for Indoor Positioning System

2019 ◽  
Vol 1 (2) ◽  
pp. 1-5
Author(s):  
Nurul Fatehah Zulkpli ◽  
Nor Azlina Ab. Aziz ◽  
Noor Ziela Abd Rahman ◽  
Rosli Besar
Keyword(s):  
Indoor Positioning ◽  
Low Energy ◽  
Location Based Services ◽  
Positioning System ◽  
Indoor Environments ◽  
Wireless Technologies ◽  
Bluetooth Low Energy ◽  
Advantages And Disadvantages ◽  
Performance Accuracy ◽  
Indoor Positioning System

Indoor Positioning System (IPS) is used to locate a person, an object or a location inside a building. IPS is important in providing location-based services, which has recently gain much popularity. The services ease visitors’ navigation at unfamiliar premises. Location-based services depend on the capability of IPS to accurately determine the location of the user, which is a challenging issue in indoor environments. Several wireless technologies are available. In this paper, two of the most widely used IPS technologies are reviewed which are, WiFi and Bluetooth low energy (BLE). Their advantages and disadvantages are reviewed and reported here. Comparison of the systems based on their performance, accuracy and limitations are presented as well.

scholarly journals A INDOOR POSITION ROUTING (IPR) AND DATA MONITOR USING BLUETOOTH LOW ENERGY TECHNOLOGY (iBEACON-BLE): AN IMPLEMENTATION STUDY

2021 ◽  
Vol 5 (1) ◽  
pp. 38-61
Author(s):  
Batur Alp Akgül ◽  
Bülent HAZNEDAR ◽  
Abdurrahman YAŞAR ◽  
Mustafa Ersan ÇİNKILIÇ
Keyword(s):  
Mobile Application ◽  
Low Cost ◽  
Low Energy ◽  
Sensor Nodes ◽  
Smart Devices ◽  
Smart Device ◽  
Indoor Environments ◽  
Bluetooth Low Energy ◽  
Proposed Model ◽  
Mobile Industry

Rapid advancements in mobile industry have emerged new technological ideas and applications for researchers by allowing smart devices over the last decade. In recent years, the need for Indoor Position Routing (IPR) and Location-Based Advertisements (LBA) systems are increasingly common, IPR and LBA systems have been becoming very popular. Nowadays, it has become possible to create software and hardware applications for IPR and LBA in indoor environments, thanks to developments of different technologies. The development of the system should be based on low-cost technology, it should be suitable for integration and indoors operation. New options and possibilities for indoor locations are presented by the iBeacon-Bluetooth Low Energy (BLE) radio protocol. iBeacon-BLE supports portable battery-powered system that can be smoothly distributed at low cost giving it distinct advantages over Wi-Fi. Therefore, in this study, a technological infrastructure is created to solve the navigation problem in closed locations using iBeacon-BLE technology, a data monitoring information system is proposed for smart devices of currently available technology for IPR, LBA with using iBeacon-BLE. The localization of the objects based on iBeacon-BLE and their combination are determined using the measured data with the developed application. To build an IPR system for indoor environments, the available hardware, software, and network technologies are presented. The concept of the indoor monitoring system and the technologies can be used to develop the IPR system are presented. This system is made up of iBeacon-BLE sensor nodes, a smart device and a mobile application that provides IPR and LBA services by measuring the distance between Transmitter (TX) and Receiver (RX). The proposed model uses the trilateration method, it allows the mobile application to determine the exact location of the object at the micro-level size. The proposed model uses sensory data to identify and trilateration the object’s position.

scholarly journals Another Look at Privacy-Preserving Automated Contact Tracing

2022 ◽  
Vol 8 (2) ◽  
pp. 1-27
Author(s):  
Qiang Tang
Keyword(s):  
Low Energy ◽  
Security And Privacy ◽  
Contact Tracing ◽  
Indoor Environments ◽  
Privacy And Security ◽  
Bluetooth Low Energy ◽  
Virus Spreading ◽  
Privacy Issues ◽  
Interface Usability ◽  
Close Contacts

In the current COVID-19 pandemic, manual contact tracing has been proven to be very helpful to reach close contacts of infected users and slow down spread of the virus. To improve its scalability, a number of automated contact tracing (ACT) solutions have been proposed, and some of them have been deployed. Despite the dedicated efforts, security and privacy issues of these solutions are still open and under intensive debate. In this article, we examine the ACT concept from a broader perspective, by focusing on not only security and privacy issues but also functional issues such as interface, usability, and coverage. We first elaborate on these issues and particularly point out the inevitable privacy leakages in existing Bluetooth Low Energy based ACT solutions, including centralized and decentralized ones. In addition, we examine the existing venue-based ACT solutions and identify their privacy and security concerns. Then, we propose a generic venue-based ACT solution and a concrete instantiation based on Bluetooth Low Energy technology. Our solution monitors users’ contacting history only in virus-spreading-prone venues and offers higher-level protection for both security and privacy than its predecessors. Finally, we evaluate our solution from security, privacy, and efficiency perspectives, and also highlight how to reduce false positives in some specific indoor environments.

scholarly journals A Novel Drone-based Search and Rescue System using Bluetooth Low Energy Technology

2021 ◽  
Vol 11 (2) ◽  
pp. 7018-7022
Author(s):  
A. Hashmi
Keyword(s):  
Time Frame ◽  
Small Time ◽  
Ease Of Use ◽  
Search And Rescue ◽  
Low Energy ◽  
Human Interaction ◽  
Indoor Environments ◽  
Bluetooth Low Energy ◽  
Missing Children ◽  
Complete Automation

Drones are widely known for their mobility and ease of use and represent a significant technological breakthrough with various applications. In this paper, a novel inexpensive Search and Rescue (SAR)-based approach for application in indoor environments is presented. The usage of Bluetooth Low Energy (BLE) has been evaluated with respect to other technologies and a conceptual view of the complete setup has been presented. Besides the cost of the drone and the locator devices, the other hardware is relatively inexpensive costing only a fraction of a US dollar. The system is believed to cover a wide area in a small-time frame ranging a few minutes, for instance, a 3600m2 surface area could be scanned in less than 5 minutes. The system is tested by attaching a BLE device in the payload to evaluate the presence of target beacons. Potential upgrades in the system are also proposed, including design modifications for outdoor use and the application in locating missing objects. This system can confidently replace search parties dealing with missing children in public places or venues, with minimal human interaction while bearing the potential for complete automation.

Remote detection of social interactions in indoor environments through bluetooth low energy beacons

2020 ◽  
Vol 12 (3) ◽  
pp. 203-217 ◽  
Author(s):  
Paolo Baronti ◽  
Paolo Barsocchi ◽  
Stefano Chessa ◽  
Antonino Crivello ◽  
Michele Girolami ◽  
...  
Keyword(s):  
Social Interactions ◽  
Low Energy ◽  
Remote Detection ◽  
Indoor Environments ◽  
Bluetooth Low Energy
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