Does IoT imply cloud solutions? Does a manufacturing plant need to be connected to internet to operate?
Could fog computing and edge computing be valid answers? The idea would be to process data as close as and as soon as it is originated. This would alleviate the size of the messages, reduce the bandwidth, shortened the feed-back loop, provide better security and ultimately make cloud services optional.
On the IoT and home automation fields, using standards like MQTT and JSON allows to use any broker and basic tools to read the messages.
- Retrofitted and Native Solutions
But new initiatives match the three conditions natively.
For example, I've been happily surprised by the Mozilla Things solution, running on a local server and based on the W3C Web of Things (WoT) Thing Description.
I hope more options, either retrofitted old solutions or native new solutions, are coming.