The Industrial Internet of Things (IIoT) is also in the works, with standards efforts kicking into high/er gear. The two big contenders seem to be the American-led effort/s that has come together for IEEE P2413[1], and the German-led effort known as Industrie 4.0[2]. See also: Industrie 4.0 vs. the Industrial Internet [3]. [1] https://standards.ieee.org/develop/project/2413.html [&] http://www.industrialinternetconso…
Most factories have had in-house networks for decades. Ordinary CAT-5 cable works quite well in electrically noisy industrial environments, because it's a differential signal on twisted pair. In industry, the big problem is getting all the gear to interoperate. There's also what's called "machine to machine communcation", much of which takes place over low-cost wireless pager networks. Many industrial air conditioner…
See: http://www.mmsonline.com/articles/7-things-to-know-about-the...