Control Systems Flashcards
computes the car’s current location
positioning module
dead-reckoning
method of calculating the current position of a moving object using its speed, orientation, starting position and time
algorithm for computing the shortest path
Dijkstras algorithm, A*
gps receivers+dead reckoning sensors
sensor-fusion algorithms
delibarative control principle
slow, strategical in searching and planning
route planning modules use ________ type od control
delibarative
For smart curtains we need:
1) sensor
2) software controller
3) motor
transducer
a device that transforms one physical quantity into another
sensor
transforms one physical quantity into an electrical signal
resistive sensor
piece of metal
semiconductor device thta changes resistance under the influence of light
photocell or photoresistor
photocell
semiconductor device thta changes resistance under the influence of light
they couple actions with specific sensed situations
condition-action rules
calibration table
shows the values of illumination at different times of day
AC motor
high-power applications withouth precision
DC motor
low-power high precision applications
servomotor
DC motor+position sensing control system
converts the digital signal produced by the controller into the right analog signal to activate the motor
driver device
ranging sensors
they sense objects in their proximity
sonar
work on the principal of echolocation
radar
uses radiowaves
LIDAR
uses light pulses; static and dynamic
proportional feedback control algorithm
the controller produces a signal proportional to the error
derivative component
depends on how fast the error changes
integral component
reflects the cumulative error
converts the digital signal produced by the controller into the right analog signal to activate the motor
driver device
the controller produces a signal proportional to the error
proportional feedback control algorithm
a graph provided by the sensor’s producer in a data sheet
sensitivity curve
the tuning operation
callibration
action from the measured quantity
measurand
effect in the sensor
sensitive element
