Classify the following systems as openloop or closedloop con

Classify the following systems as open-loop or closed-loop control and explain why. washing machine a traffic light signal garage door opener car\'s twilight sentinel

Solution

a.Automatic Wasing machine is closed loop control system.The controller takes the feed back of the parameters and compares with the stored value and further executes the processing.Example,when washing the controller opens the inlet valve of water in and until unless required amout of water is stored.

b.It is open loop system.An open loop traffic signal just cycles on a schedule and has no \"knowledge\" of traffic patterns or current traffic. A closed loop system would have sensors letting it know when traffic was present and a controller that would make decisions based on the traffic conditions.

c.open loop system as seen explained above.If the shutter down button is presses it will not stop even if something hinders its path.

D.Closed loop system as it senses outside light and turns the exterior lights on and off depending on lighting conditions.