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 grids by country current electricity meters with smart meters by 2020 wherever cost-benefit analysis demonstrates a positive result. This smart metering and smart grids rollout can reduce emissions in the EU by up to 9% and annual household energy consumption by similar amounts. On 30 November 2016, the Commission published a proposal stating that all consumers should be entitled to request a smart meter from their supplier. Smart meters should allow consumers to reap the benefits of the progressive digitalisation of the energy market via several different functions. Consumers should also be able to access dynamic electricity price contracts. . A 2014 Commission