Ключевые слова: alarm, alertness, background, brother, building, business, camera, cameras, cctv, city, control, crime, electronic, equipment, exposure, green, guard, home, house, industry, isolated, lens, look, modern, monitor, monitoring, multiangle, observe, office, outdoor, park, privacy, private, property, protect, protection, record, safe, safety, secrecy, secure, security, spy, surveillance, system, technology, television, urban, video, view,