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