Definition - What does Telemetry mean?
Techopedia explains Telemetry
In general, telemetry allows for the robust collection of data and its delivery to centralized systems where it can be used effectively. Part of the evolution of telemetry involves the emergence of big data technologies and big data strategies that take enormous amounts of relatively unstructured data and aggregate it in centralized systems. These types of "data-rich" data transit systems provide sophisticated and detailed reports and intelligence for any industry or public agency.