Control System
A control system is a system of devices that manages, commands, directs, or regulates the behaviour of other devices or systems to achieve a desired result. A control system achieves this through control loops, which are processes designed to maintain a process variable at its desired setpoint.
Features of a Control System
In general, effective control systems have the following characteristics.
Accuracy: Effective controls generate accurate data and information. Accurate information is essential when it comes to managerial decisions. Accuracy is the limit of errors when the instrument is used under normal operating conditions.
Energy savings: Energy waste is reduced when your plant and machinery are operated efficiently.
Improved safety: Control systems automatically warn you of abnormalities, reducing the risk of accidents.
Sensitivity: The parameters of a control system are always changing with changes in surrounding conditions, internal disturbances, or other parameters. This change can be expressed in terms of sensitivity. Any control system should be insensitive to such parameters and sensitive only to input signals.
Noise: An undesired input signal. A good control system should reduce noise to improve performance.
Stability: It is an important characteristic of the control system. For a bounded input signal, the output must be bounded, and if the input is zero, the output must be zero; such a control system is said to be stable.
Speed: the time it takes for the control system to reach a stable output. A good control system possesses high speed. The transient period for such a system is very small.
Working of Controlled Systems
A control system is a system that responds to input signals from the plant (a system to be controlled) and/or an operator and causes the plant or equipment to operate in the desired manner. Control systems usually involve one or more input devices, a controller, one or more output devices, power supplies, and any associated information connections.
A control system is a set of mechanical or electronic devices that regulates other devices or systems by way of control loops. The control loop that make up control systems are generally made themselves of a sensor, a controller and a final control element. The sensor reads the process variable or a related measurement. The controller receives the signal from the sensor and then forwards it to instrumentation, to remote terminal units and to final control elements where the process variable is adjusted, to be kept constant at what is known as a set point.
Your IoT device may be smaller than a coin or larger than a refrigerator. It may perform a simple sensing function and send raw data back to a control center. It may combine data from many sensors, perform local data analysis, and then take action. Additionally, your device could be remote and standalone or be co-located within a larger system.
Conclusion
In this article we learned about control systems in IoT, it's features ( accuracy, energy savings, safety, stability, and speed) ,working principles and how they regulate devices for desired results. Hope you gained some Knowledge!
In upcoming next article we will learn about types of control system so, stay tunned and keep learning.
Thank you for reading this Article!
You are a Great Learner !!