Monitoring and Control Flashcards
Sensors
Input device that records data from physical environment
Actuators
Output device that outputs to physical environment, usually in low level form
e.g. LED (with lights on or off) is low level, while monitor also output lights but with higher level information
incl. Motor (motion), LED (light), Heat, Buzzer (Sound) etc.
Monitoring system
Microprocessor read, record data from sensor
May report if abnormality happens
Control System
Similar to monitoring, but microprocessor will also utilize Actuators to “alter” the monitored environment
e.g. Air conditioner
Motion Sensor
Detects presence of motion, usually use in CCTV
May use Infrared or microwave to detect
Pressure sensor
Detects pressure of liquid or gas