12-01-2012, 04:57 PM
Distributed Control Systems
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Collection of hardware and instrumentation necessary for implementing control systems
Provide the infrastructure (platform) for implementing advanced control algorithms
History of Control Hardware
Pneumatic Implementation:
Transmission: the signals transmitted pneumatically are slow responding and susceptible to interference.
Calculation: Mechanical computation devices must be relatively simple and tend to wear out quickly.
Electron analog implementation:
Transmission: analog signals are susceptible to noise, and signal quality degrades over long transmission line.
Calculation: the type of computations possible with electronic analog devices is still limited.
