![]() This feature enables us to calculate the position of a device inside a building with the help of multiple Bluetooth receivers placed at strategic places in the building. Combination of BLE, Message Queuing Telemetry Transport (MQTT) with hardware modules make a good alternative for the situation addressed.Mobile devices with Bluetooth 5.0 chip support the advertising of small packets of data using Bluetooth low energy. Bluetooth low energy (BLE) is preferred over other technologies due to its low energy consumptions, higher accuracy, and low latency. Variety of indoor positioning systems has been proposed in the past which use technologies like WIFI, RFID, NFC, and Bluetooth. ![]() Indoor positioning system has numerous sets of applications in the market where it can be used to navigate inside a huge building, track assets in a warehouse, improve security of a building, data analytics, etc. This limitation of GPS calls for a new positioning system for indoor environment. It relies on uninterrupted satellite reception from the user, this cannot be achieved while the user is inside an enclosed building. GPS technology cannot be implemented for positioning within indoor locations due to various shortcomings. Presently we have highly efficient outdoor location and navigation system based on Global Positioning System (GPS) technology. INTRODUCTION Location based services are rapidly evolving around the globe. ![]() Keywords: Global Positioning System (GPS), Received Signal Strength Indicator (RSSI), Bluetooth low energy (BLE), Message Queuing Telemetry Transport (MQTT) and Transmission Control Protocol (TCP) I. Using these technologies indoor navigation can be successfully achieved at a greater accuracy compared to GPS. A very lightweight publish/subscribe messaging transport protocol: Message Queuing Telemetry Transport (MQTT) and a communication protocol showing the establishment and maintenance of network conversations by which application programs exchange data: Transmission Control Protocol (TCP) are useful for establishing wireless connections within an indoor location for sending packets of data. The position coordinates of the users are estimated using trilateration method where the relative distance from each receiver is calculated based on Received Signal Strength Indicator (RSSI) value. Here its battery life is preferred over its high data transfer speeds. Thus, Bluetooth Low Energy (BLE)being a wireless technology is used for short range communication. Outdoor navigation uses global positioning system (GPS) technology, however using GPS for tracking within a building is not feasible as reception rate is low and accuracy is in the range 30 meters due to indoor environmental factors. The positioning works on a "client-based application" which requires a smartphone with the mobile application used to determine the position directly. The indoor routing mechanism gives directions towards selected destinations within a building with the help of an indoor navigation application. Indoor navigation systems play a very useful role in huge buildings and offices when one needs to locate a room, a shop, or a part of the premises. Indoor positioning and navigation-based applications are emerging rapidly. We performed extensive experiments and our results show that the proposed beacon based micro-location system can be used to locate a user in an indoor environment with an error as low as 0.27 meters. We propose to leverage a control theoretic approach, namely particle filtering, in order to increase the tracking accuracy in an indoor environment. In this work, we propose to use the cutting edge and commercially available Appleās iBeacon protocol and iBeacon BLE sensors for micro-location. At the same time, each vendor would install different technologies. Although several technologies have been used for tracking purposes, the accuracy has always been a serious issue. This is a requirement of many IoT user-centric applications for indoor environments. Tracking a user with high accuracy is known as Micro-Location. Due to the lower energy consumption and higher throughput, BLE could therefore be an integral pillar of an Internet of Things (IoT) Location Based Service (LBS). The advent of Bluetooth Low Energy (BLE) enabled Beacons is poised to revolutionize the indoor contextual aware services to the users.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |