This paper presents an intelligent streetlight management system based on LED lamps, designed to facilitate its deployment in existing facilities. The proposed approach, which is based on wireless communication technologies, will minimize the cost of investment of traditional wired systems, which always need civil engineering for burying of cable underground and consequently are more expensive than if the connection of the different nodes is made over the air. The deployed solution will be aware of their surrounding's environmental conditions, a fact that will be approached for the system intelligence in order to learn, and later, apply dynamic rules. The knowledge of real time illumination needs, in terms of instant use of the street in which it is installed, will also feed our system, with the objective of providing tangible solutions to reduce energy consumption according to the contextual needs, an exact calculation of energy consumption and reliable mechanisms for preventive maintenance of facilities.
Abstract:Among the different wireless solutions Ultra wide band UWB is a promising technology for in-car communications due to its high data rates. To optimise the UWB radio system design, knowledge of the propagation channel within the car is required. A study of the performance of a high speed 480Mbps UWB radio system is reported here within a real in-car environment measured under mobility.A comprehensive set of measurements is presented including several possible NonLine Of Sight (NLOS) scenarios while the vehicle is stationary and mobile, for open and closed window environments and with/without occupants. These measurements are used to characterise the in-car channel and evaluate the performance of a typical UWB radio system in this setting.
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