英文關鍵字
cctv
camera
surveillance
led
security
rotate
cam
safety
night
light
infrared
turning
protection
spy
video
vision
technology
bright
turned
panning
ip
smart
robotic
record
close
watching
scanning
privacy
isolated
robbery
digital
tilt
antenna
monitoring
room
closeup
secure
drive
offender
shot
observe
recording
private
wall
motorized
webcam
shift
cyberspace