Ключевые слова: background, blue, building, business, camera, cctv, circuit, city, control, crime, danger, digital, electronic, equipment, guard, home, industry, lamp, lens, light, look, monitor, monitoring, outdoor, privacy, private, property, protect, protection, record, road, safety, secure, security, sign, sky, spy, steel, street, surveillance, system, technology, television, traffic, urban, video, view, watch, watching, white,