Devices for Automation and Remote Control
Frequencies play an important part by providing the link between a personal device, such as a cell phone, and a network of other cell phone users and the wide range of services provided through a common telephone connection that is part of the internet.
As important as cell phone conversations may be, so too are the many connections that keep the Internet functioning while routing millions of packets of information at an ever increasing rate of speed.
How Electrical Systems are Used to Monitor and Control Equipment
Just as cell phones are used to connect people with one another using voice conversations or text messages, the same communication technology is used to connect vast amounts of equipment to one another or large networks which then provide reports about how equipment is performing and control set points which may activate a variety of control operations.
Specific control networks are set up providing communications with digital and analog devices for the purpose of monitoring and controlling equipment at a local business, such as a large supermarket, or a more complex facility such as a hospital. These data acquisition networks, also known as SCADA systems, monitor temperatures of equipment or areas, and then software instructions make programmed decisions to turn equipment on or off.