systems in technology objectives: define: system, component, troubleshooting, feedback, and...
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Systems in TechnologySystems in Technology
Objectives:Define: system, component, troubleshooting, feedback, and automation
Draw and label an open and closed loop systems model
List advantages and disadvantages to each type of system
Definition:Definition:
System-A combination of parts that work together as a whole.
3 Types:3 Types:
•MechanicalUses moving parts like motors, springs, etc.
•ElectricalUses electrical parts like wires, switches, etc.
•FluidPneumatic- Uses gasses
Hydraulic- Uses Liquids
Definition:Definition:
Component-One part of a system.
Definition:Definition:
Troubleshooting-
Trying to find the problem that needs to be fixed.
Definition:Definition:
Feedback-Helpful information found by
monitoring a system.
Definition:Definition:
Automation-The automatic control of a
process by a machine.
____ ____ System____ ____ System
Input Process Output
Desired result
Where work gets
done
Actual results
P.E.T.T.R.I.C.
Open Loop
Open Loop Advantages Few parts, cheap, easier to troubleshoot.
Open Loop Disadvantages Cannot adjust itself. You get whatever comes out! Lacks feedback control.
_____ _____ System_____ _____ System
Input Process Output
Monitor
AdjustCompare
Closed Loop Systems have a Feedback Loop!
Closed Loop
Step What happens at each step
Input Desired result.
Compare and
Adjust
Compares the output with the input.
Adjusts only if needed.
Process Where work gets done.
Output Actual results Desired, undesired, expected, or unexpected.
MonitorSensors that observe the output.
Closed Loop Advantages Uses a feedback loop to adjust itself. Fewer mistakes.
Closed Loop Disadvantages
More parts, more expensive, troubleshooting more difficult.