Zusammenfassung der Ressource
Control
- Computer control means that
a computer is part of the
control system
- Sensors
- Device to measure some physical quantity
- Heat
- Light
- pH
- Humidity
- Advantages
- Can operate
24/7 without
needing to rest
- Work without
wages
- Can be used in
dangerous
environments
- Disadvantages
- May cost a lot
of money to
develop
- If there is a power
cut or the computer
malfunctions it will
not work
- ADC (Analogue to Digital Converter)
- Sensors take analogue measurements.
- It must be converted to digital (0s and 1s)
- Process
- Computers can only follow rules
that is has programmed in the
control system
- Output
- Sending the
message and the
resulting action
- Open loop feedback
- Takes no
account of
the output
- Simple to
create
- Feedback system
- The output is fed
back to become
part of the input
- More precise control
- More complicated to create
- Actuator
- Allows a computer
to control
movement or action
- Examples
- Washing machines
- Automatic doors
- Traffic light systems