continuous surveillance
nounUK /kənˈtɪnjuəs səˈveɪləns/
US /kənˈtɪnjuəs sərˈveɪləns/
Watching someone or something all the time without stopping.
The baby monitor gives parents continuous surveillance of their sleeping child.
OTHER MEANINGS
2. A security system that records or watches a place day and night.
The museum uses continuous surveillance to protect the paintings.
3. Keeping a close, steady watch on a person or activity over a long period.
Doctors kept the patient under continuous surveillance after surgery.
4. The act of following something's progress without any breaks.
Scientists used continuous surveillance of the volcano to predict eruptions.