The open KNX Standard seems to be the answer to IoT's woes. But nobody seems to have heard of it.
https://en.wikipedia.org/wiki/KNX_(standard)
This classic talk - Learn how to control every room at a luxury hotel remotely (2015) [has eng subtitles]:
https://en.wikipedia.org/wiki/KNX_(standard)
This classic talk - Learn how to control every room at a luxury hotel remotely (2015) [has eng subtitles]:
> It is administered by the KNX Association cvba, a non-profit organisation governed by Belgian law which was formed in 1999. The KNX Association had 443 registered hardware and software vendor members from 44 nations as at 1 July 2018. It had partnership agreements with over 77,000 installer companies in 163 countries and more than 440 registered training centres.[2] This is a royalty-free open standard and thus access to the KNX specifications is unrestricted.
It looks to me like it is competing with systems like Control4 in US since usually you want somebody to install and set it up for you.
Having said that I do believe that it is a good standard and I hope I will be able to implement it in my next home for the fundamental (must work) things like heating, blinds and lighting (maybe with DALI).