7.1.2 - Outline the uses of microprocessors and sensor input in control systems. Flashcards
How are microprocessors and sensors used in automatic doors?
Sensors like motion or pressure detect a person, and the microprocessor processes the input to open or close the door. Feedback indicates whether the door is open.
How do heating systems use sensor input?
Temperature sensors provide input, and the microprocessor processes whether to turn on the heater or compressor based on the desired temperature. Feedback shows if the room is at the set temperature.
How does a taxi meter use sensor input and microprocessors?
Sensors like GPS or timers calculate the distance or time traveled, which is processed by the microprocessor to determine the fare. The price is displayed and updated until payment.
What is the role of sensors and microprocessors in elevators?
Input from buttons, pressure, and weight sensors is processed to control the elevator’s motor, which navigates to selected floors. Feedback shows whether the elevator is operational.
How do washing machines use microprocessors and sensors?
Sensors for water level, temperature, and door status provide input, and the microprocessor controls the flow of water, motor speed, and other functions. Feedback includes whether the door is open or closed.
What input and output does a GPS system use?
GPS systems use signals from satellites, touchscreens, and other inputs to calculate location and route information, which is displayed on a map. Feedback ensures the system updates with position changes.
How do traffic lights use sensor input and microprocessors?
Sensors detect cars or pedestrians, and the microprocessor processes the input to control the light color. Feedback includes the current state of the traffic light (red, green, amber).
What are some examples of actuators used in control systems?
Actuators include devices like motors, pumps, heaters, buzzers, and lights, which convert electrical signals into mechanical actions, such as spinning, heating, or producing noise.
