id	keyword
ajst-6856	tunnel
ajst-6856	detection
ajst-6856	fire
ajst-6856	robot
ajst-6856	traffic
ajst-6856	system
ajst-6856	inspection
ajst-6856	patrol
ajst-6856	monitoring
ajst-6856	video
ajst-6856	control
ajst-6856	operation
ajst-6856	equipment
ajst-6856	alarm
ajst-6856	accidents
ajst-6856	technology
ajst-6856	time