Ключевые слова: alarm, alertness, background, brother, camera, cameras, cctv, circuit, closeup, control, digital, electronic, equipment, garden, green, guard, home, house, industry, interior, lens, life, look, modern, monitor, monitoring, multiangle, nature, observe, outdoor, park, privacy, private, protect, protection, record, safety, secrecy, secure, security, spy, surveillance, symbol, system, technology, television, urban, video, view, watch,