Energy meter for charging stand in smart buildings

This paper describes the design of smart energy meter and its = implementation,focusing on its firmware,which is based on real time operating system freertos. the main areas to use this energy meter are charging stations (stands) for electric vehicle (follows as ev) charging support and possible embedding into current smart building technology. this paper also presents the results of a research of commercial devices available in czech republic for energy measuring for buildings as well as the analysis of energy meter for specific purposes. for example,the description of the module includes the required measurement of voltage,electric current and frequency of power network. after integration into smart buildings (home automation,parking houses). there are pros and cons of such solutions mentioned.