2a contol systems

How organisations use ICT - 1 2a: Control Systems

Introduction ,[object Object],[object Object]

What is computer control? ,[object Object],[object Object],[object Object]

Input - Sensors ,[object Object],[object Object],[object Object],[object Object]

Types of sensors Computer controlled robots Detects if one object bumps into another Touch Windows in security alarm system Angle of tilt Tilt Security alarm systems Levels of sound Sound Offices Smoke in the atmosphere Smoke Burglar alarm systems, automatic doors Pressure Pressure Environmental experiments, river pollution Acid/alkali levels e.g. pH of soil PH External security lights Light levels Light Security alarm systems Infra-red radiation e.g. body heat Infra-red Swimming pool, greenhouse Water vapour in the air Humidity Living room for central heating system Temperature Heat Where Used Measures Sensor

ADC ,[object Object],[object Object],[object Object],[object Object]

Process ,[object Object],[object Object]

Process – central heating systems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Output ,[object Object],[object Object],[object Object]

Open loop systems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Closed loop systems ,[object Object],[object Object],[object Object],[object Object],[object Object]

Control examples ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Air conditioning systems 1 ,[object Object],[object Object],[object Object]

Air conditioning systems 2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Refridgeration systems 1 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Refrigeration Systems 2 ,[object Object],[object Object],[object Object],[object Object],A: Inside a refrigerator B: Compressor C: Expansion Valve

Refrigeration systems 3 ,[object Object],[object Object],[object Object],[object Object],[object Object]

Car manufacture 1 ,[object Object],[object Object],[object Object]

Car manufacture 2 ,[object Object]

Medical applications – intensive care ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Process Control ,[object Object],[object Object],[object Object],[object Object]

Process Control - Batch ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Process Control - Continuous ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Process Control - Discrete ,[object Object],[object Object],[object Object]

PLCs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Advantages of Control Systems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Disadvantages of Control Systems ,[object Object],[object Object],[object Object],[object Object],[object Object]

2a contol systems

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