Ключевые слова: alarm, big, blue, building, cam, camera, cctv, circuit, city, control, crime, detection, digital, electronic, equipment, guard, industry, lens, looking, modern, monitor, monitoring, observe, outdoor, police, precaution, privacy, private, property, protect, protection, record, safe, safety, secure, security, sky, spy, street, surveillance, system, technology, television, traffic, tv, urban, video, wall, watch, white,