SELF-POWERED AND BATTERY-POWERED IOT WIRELESS SENSOR CHALLENGES

摘要

It is estimated that by 2020, the Internet of Things, or IoT, will connect 50 billion devices that transmit useful data and control information via sensor networks. Although it's possible for a network to use wired sensors, the wireless variety provides easier deployment and wider flexibility. Wireless sensor networks will introduce significant changes to monitoring the environment to support wide-ranging applications, from smart power grids and intelligent transportation to fleet tracking, industrial control and home security. But, one factor that currently limits their use is the short time-span during which wireless sensors can do their job. If a wireless sensor depends fully on a battery and the battery is depleted the sensor becomes worthless.