Ключевые слова: alarm, blue, building, business, camera, cctv, city, control, crime, danger, daytime, electric, electrical, electronic, equipment, guard, high, looking, modern, monitor, monitoring, object, observe, outdoor, privacy, protect, protection, safe, safety, secure, security, situation, sky, space, spy, street, streetlight, supervision, surveillance, survey, system, technology, urban, video, watch, watching,