[Round 29 | aosu Security Quiz] Super Battery Life: The Secret is PIR!🔋

Events
1

Round 29 , “Super Battery Life: The Secret is PIR!”:battery:

:bullseye: Q: What does PIR stand for?

:magnifying_glass_tilted_left: You can find the answer in the aosu Community.
:backhand_index_pointing_right: Search “What does PIR stand for?” in the top-right search bar. :desktop_computer:

:wrapped_gift: Prizes Up for Grabs

  • :balloon: Lucky Winner— 14-day Monthly Cloud Storage Service ×1 :cloud:
  • :trophy: Monthly Grand Prize — aosu Indoor Camera ×1 :video_camera: (join 3+ quiz rounds to qualify)

:white_check_mark: How to Participate

  1. Go to the aosu Community and search for the article title using the search bar in the top right corner.
  2. Read the article and leave your answer in the comments section of this post.
  3. All correct answers will be entered into this week’s prize draw!

:three_o_clock: Quiz Period : Jan 14 – Jan 20
:loudspeaker: Winners Announced: Next Wednesday in the comments — stay tuned! :eyes:

:light_bulb: Think you know the answer?
Come and answer the questions! :glowing_star: :glowing_star:

[Round 28 | aosu Security Quiz] The difference between card and cloud recordings
2

PIR stands for Passive Infra‑Red, and it’s a super common tech used in alarms and motion‑activated gadgets. :locked::sparkles:

Instead of sending out signals, a PIR sensor just watches for changes in infrared energy, basically the heat that people, animals, and objects naturally give off. When something warm moves across its detection zone, the sensor notices the shift and triggers an alert or action. :footprints::fire:

Because they’re low‑power, reliable, and don’t need constant active scanning, PIR sensors show up everywhere: outdoor security lights, home alarm systems, smart‑home automations, and even energy‑saving lighting setups. :light_bulb::house:

Perfect little silent guardians doing their job in the background. :grinning_face_with_smiling_eyes:

1 Like
3

PIR is short for Passive Infra-Red, which is a technology used to detect body heat and motion by recognizing light emitted from nearby objects. Aosu uses this technology in their battery-powered cameras to preserve battery life.

1 Like
4

passive infrared, lol and no I don’t google or copy and paste the answer! :joy:

1 Like
5

:trophy: Aosu Security Quiz Event – Winner Announcement

:tada: Winners Round 29 Announced!
:one: The lucky winner is: @mystikal4777
Prize: 14-day monthly cloud storage service ×1 :balloon:

:confetti_ball:Congratulations to the above winners!!!

:envelope_with_arrow: Please contact our team via email [community@aosulife.com] to claim your prize!
:mobile_phone: You can also share on WhatsApp

:wrapped_gift: :rocket: Round 30 Begins Now!

Test your knowledge, join the fun, and stand a chance to win exciting rewards.

Come and get involved now!

1 Like