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It is a common mistake for homeowners to replace a light fixture with a ceiling fan without upgrading to a proper junction box. [citation needed] Ultimately, the weight of the fan must be carried by a strong structural element of the ceiling, such as a ceiling joist. Should an improperly mounted fan fall, especially a 22.7 kg cast iron fan, the ...
Infrared remote control for the analog SLR camera Canon EOS 100 from 1991. Remote controls are used in photography, in particular to take long-exposure shots. Many action cameras such as the GoPros [45] as well as standard DSLRs including Sony's Alpha series [46] incorporate Wi-Fi based remote control systems. These can often be accessed and ...
While not the first remote control, its underlying technology was a vast improvement over previous remote control systems. The " Zenith Flash-Matic " remote control, invented by Eugene Polley , another engineer at Zenith , was the first wireless remote control, replacing the signal cable–based remote control devices, which never were a success.
These systems were widely used until the 1960s, when the increasing use of solid state systems greatly simplified radio control. The electromechanical systems using reed relays were replaced by similar electronic ones, and the continued miniaturization of electronics allowed more signals, referred to as control channels, to be packed into the ...
The RC-5 protocol was developed by Philips in the early 1980s as a semi-proprietary consumer IR remote control communication protocol for consumer electronics.It was subsequently adopted by most European manufacturers, as well as by many US manufacturers of specialty audio and video equipment.
A distributed control system (DCS) is a computerized control system for a process or plant usually with many control loops, in which autonomous controllers are distributed throughout the system, but there is no central operator supervisory control. This is in contrast to systems that use centralized controllers; either discrete controllers ...