COMPUTER ARCHITECTURE
INPUTOUTPUT DEVICES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Sensor used in a classroom to set off the burglar alarm if intruders are sensed____
|
|
Motion sensor
|
|
|
Temperature / heat sensor
|
|
|
Moisture sensor
|
|
|
Humidity sensor
|
Explanation:
Detailed explanation-1: -The PIR sensor is responsible for detecting the change in infrared radiation levels when an intruder or human is passed through the system or space where it is arranged.
Detailed explanation-2: -Motion detection cameras, lights, and sensors used in home security systems generally rely on PIR sensors. These detect infrared energy, which humans and animals release as heat.
Detailed explanation-3: -Photoelectric beams Photoelectric beam systems detect the presence of an intruder by transmitting invisible infrared light beams across an area, where these beams may be obstructed.
There is 1 question to complete.