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Control Systems
(2 types of control systems, advantages and…
1
Control Systems
(2 types of control systems, advantages and disadvantages, Components, Examples, Usecases, Social ethical issues)
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Components
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Output / Actuator
For Example:
- Motor
- Heater/Cooler
- Pistons
- Relay
Social and ethical issues
- Reliability: hardware, software, correspondence of data with the real world
- Security: protection of hardware, software and data against unauthorised access
- Privacy: control of information, surveillance
budget, user satisfaction issues
Usecases
- greenhouse
- toaster
- aircon
- Automatic Door
- Elevator
- Car Wash
- Smart Home
- Industrial Applications
- Surveillance systems
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Centralised vs Distributed (control) systems
(pros and cons, issues and concerns)
https://www.youtube.com/watch?v=7VbL89mKK3M
Reliability
Distributed systems, better
If a centralised system looses it's central server, due to things such as fires, the whole system brakes down. This is, because all node use the central server to store data and get instructions. If it's gone this doesn't work anymore. In a distributed however this is not the case, because there is no centralised server, which means that nodes can just fall out and system continues to work.
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Security
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This is because in a centralised system there is only one client that controls the whole system so they will be able to control everyone else, this is different in a decentralised system, since everyone has the same amount of power and therefore can change whatever they want without needing approval
Simplicity
Centralised systems are much simpler than distributed systems, because among other things the software is much simpler.
Staff Requirements
Centralised
- People have to be trained with the high tech security software and hardware that is incorporated into these systems
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