The home automation system can work using computer software or control panel.
Larger-Scale Automation Systems Operate with Computer Software – As our homes are filled with a large number of appliances, it is tedious to memorize their working procedures and its accurate timings in order to work safely. Anyone of us would wish to have these appliances working in an automatic condition as these appliances are brought for our comfort and convenience.
SCADA is a kind of software to enable automation process and care for these appliances. The installation can be done on a panel mounted micro-controller known as Programmable logical control (PLC) instead of desktop PC. An engineer can help you to install to set the operational parameters in the different procedures such as lighting time, TV to be switched on/off, water heater to be turned on/off, etc.
Smaller Installations operate using a single thermostat like Control Panel – Central controlling is not at all essential for smaller and less installations as they can be controlled individually by making use of a single thermostat. A thermostat is an analog device to calculate temperatures and trigger relays to activate under preset conditions such as heaters, AC, and refrigerators. Also limit switches, level sensors and proximity switches work in the exact way for doors, windows, water tanks, etc.