Internet of Things – Smart Cities
«Internet of Things» is the hot topic of all relative discussions these days as it tends to conquer the daily routine of millions of people in the near future.
It’s an idea related to devices, objects and generally “things”, which are connected continuously to each other, not only locally but globally as well, based on RFID technology. The concept continued its evolution to its current form which offers the opportunity to a multitude of heterogeneous objects to interact with their natural environment.
An implementation of the above concept is the “smart cities “.
It focuses on improving urban life by problem-solving and in innovation, using intelligence, which is determined in relation with the Citizens, the connected systems, the overall digital infrastructure and the “tools” that a community is able to offer to its citizens. A smart city is therefore based on six basic axes that have to do with regional competitiveness, transport, finance, natural resources, capital of both the human and social, as well as quality of life, coupled with the participation of citizens in city management.
A solution for a specific sector of the smart city is the «smart lighting».
The concept refers to the remote management of public lighting which will be controlled by a combination of data collection, resulting from light sensors, rain and traffic through which will regulate the turn on and off operation of the public lighting.
Possible additional features is the system’s different functionality depending to residential areas and to non-residential areas, as well as the customized function of the system depending on emergency conditions.
The “Smart system ” is a set of smart devices, which can communicate with each other, as they will create a wireless network of sensors whose position will be determined depending on the requirements of the location.
Also, in every device there will be integrated light, motion and moisture sensors for the lamp adjustment thus each individual device will be connected, through Zigbee technology in a gateway receiving all data collected by the sensors, in order to held further concentration in the database, for their calculation – management and their presentation at each institution, authority or person who is interested.
Advantages – Benefits of the system
The European countries spend over 10 billion per year for lighting highways and public roads which is equal to 40% of the spend in each country for energy.
Moreover, this energy translates into 40 million tons of carbon dioxide emissions per year. This system reduces energy costs and carbon emissions by 80% and the maintenance cost is reduced by 50%, thanks to the integrated radio sensors which inform the control center when a lamp needs repair.
A similar small scale research will take place in our country, by collecting similar data of different regions in order to create the basis for a more realistic assessment of the benefits that are expected from this system. However, in general, this system is expected to contribute in providing better services and safety to citizens, coupled with the reduction of carbon dioxide emissions and of course to energy and cost savings.