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Using an optical fiber emitter capable of detecting fine dust concentration Solar street light for bicycle roads


HeeChul, Kim
Abstract

Stand-alone PV(: Photo Voltaic) systems are independent of grid lines and operate independently, and are simple and cost-effective. A converter including MPPT(; Maximum Power Point Tracking) and a charging circuit and a battery management circuit for storing the produced energy in the battery are required. In addition, we will build an IoT system that monitors the air quality of bicycle roads and monitors the development and commercialization of AI and environmental sensors.Bicycle roads are often located in dark and remote places, such as riversides, coastal roads and reservoirs. If the street lamp is not installed, it is difficult to identify the bicycle road sign at night, so there is a risk of various safety accidents. In order to solve this problem, a technology for manufacturing bicycle road signs made of phosphorescent material and identifying them at night has been developed.The MPPT algorithm is directly proportional to voltage and power at PV array voltages below the maximum power point (MPP) in the solar cell characteristic curve. The slope is inversely proportional to the PV array voltage above MPP. Using these characteristics, digital control determines the switch operation by measuring the small difference between the discrete current value and the previous value of the power value. We develop IoT module protocol that acts as a coordinator and a router in the middle for communication between IoT sensor modules distributed over a long distance. In the existing mesh method, the coordinator and router use only unique functions, but the coordinator and router also play the role of end node and reflect the protocol of the method that can perform the corresponding function in the design.The ESS system for solar street light power supply with IoT module and lithium battery pack module is included in solar street light lithium battery pack module. The R-BMS module for battery management and system control is included in the ESS system as a bidirectional DC / DC converter module.IoT based remote management is possible when low power and long distance wireless transmission is applied to IoT module. The central control system that enables integrated power management such as market expansion through diversification of alternative energy industry products should be secured.

Volume 11 | 08-Special Issue

Pages: 2019-2025