The supercapacitor is employed as the rechargeable energy storage instead of the widely used lithium-ion rechargeable battery to allow efficient and quick charging of the energy storage in an indoor environment. Moreover, our luXbeacon design ensures startup time under 15 seconds in an indoor lightings environment of around 100 lux light intensity. The power management IC routes the harvested power to the entire circuit in an appropriate manner to ensure continuous operation of the BLE SoC and alleviate the cold-start problem. The power management system consists of a power management IC, 3.3V regulator, 1.5F supercapacitor, and a solar panel. The luXbeacon hardware design is largely divided into two sub-systems power management and Bluetooth communication system. Block diagram of HKUST luXbeacon hardware design The article aims to provide a brief overview of luXbeacon’s circuit and firmware design to establish a basic understanding of the working principles of luXbeacon. This DesignSpark PCB version of luXbeacon is henceforth called HKUST luXbeacon. To address this issue, the luXbeacon design was converted to a free ECAD software, DesignSpark PCB, along with few upgrades that prove to have a significant improvement in luXbeacon’s performance, namely the operational lifetime. However, since most of the original luXbeacon development was done on a paid ECAD designing software, the released source files were not easily accessible to the public. Moreover, the luXbeacon design is open sourced, and the corresponding circuit and casing designs and source code for the firmware can be downloaded at luXbeacon website. Therefore, it can support battery-free operations even in indoor environments where the ambient light energy is scarce. luXbeacon harvests ambient light energy to power it's onboard PMIC and BLE SoC, and also charge 1.5F supercapacitor to enable perpetual operation even in absence of light sources. LuXbeacon is an energy harvesting BLE beacon platform designed and developed by the research team in HKUST-NIE Social Media Lab. To address this issue, this article presents an open source hardware design, an energy harvesting BLE beacon platform, luXbeacon, that will pave a way to a green and self-sustaining infrastructure for the Internet of Things era. However, because these BLE beacons are battery powered, a periodic battery replacement and management operation are imperative. With the advent of manufacturing technologies for low-cost computation and communication devices, the Internet of Things, a new paradigm for a communication system, was introduced.īluetooth low energy (BLE) beacon is one of the most prospected building blocks for the Internet of Things, an infrastructure that will support various user-aware/-centric applications.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |