Smart grid provides the digital technology that allows for two-way communication between the utility and the customers. The smart grid consists of controls, computers, automation, and new technologies and equipment working together. The smart grid will move the energy industry into a new era of reliability, availability, and efficiency with economic and environmental health. A smart meter plays a major role in the smart grid and it is an electronic device that measures and records the energy consumption. It enables two-way communication between the meter and the supplier through advanced metering infrastructure (AMI). The mode of communication is enabled by either wireless or wired. The wireless communication includes Wi-Fi, wireless mesh networks, Zig Bee, cellular communications, and low power range Wi-Fi. This chapter deliberates about the evolution of electricity metering, major components of smart meter, communication infrastructure and protocols for smart metering, demand-side integration, recent developments, issues faced and solutions, merits and demerits.
With advancement of technology at present health monitoring is one of the most emerging fields. Recently Internet of things is used in various applications like remote monitoring of parameters; control the process far away from the plant etc. In our work we used internet of things to design a health monitoring system using Arduino and several sensor network. This system will monitor the body temperature, environmental temperature, humidity, heart rate and fall detection of the patients. The measured value will be communicated to the thingspeak cloud platform. The thingspeak will read the values and send an alert message to the responsible person in the family and also to the respective doctors to do the immediate aid for the patients under abnormal conditions.
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