Internet of things different from one device to the next but there are basic characteristics shared by most. IoT creates opportunities for more direct integration of the physical world into computer-based systems, resulting in efficiency improvements, economic benefits, and reduced human exertions. The number of IoT devices increased 31% year-over-year to 8.4 billion in the year 2017 and it is estimated that there will be 30 billion devices by 2020. The global market value of IoT is projected to reach $7.1 trillion by 2020. Ambient intelligence and autonomous control are not part of the original concept of the Internet of things. Ambient intelligence
Smart grid in China authorities a strong and robust smart grid market would total $20 billion annually by 2015. Rolling out Ultra-High Voltage (UHV) transmission systems would account for more than 60% of that market, while smart meters and wind power connectivity could reach $2 billion and $800 million annually respectively. SGCC has implemented these smart grid technologies in areas such as Liangjiang, with the project there passing inspection in Q3 of 2014. It currently comprises one 220 kV substation and seven 110 kV substations. SGCC also launched the first UHV power grid in Tianjin in November 2014. The project calls for 290 transmission