Ключевые слова: big, brother, camera, cctv, cone, control, detection, digital, electronic, equipment, guard, high, industry, lens, look, modern, monitoring, observe, outdoor, police, precaution, privacy, private, property, protect, protection, record, safety, secure, security, sky, spy, street, surveillance, survey, system, technology, television, two, urban, video, view, wall, watch, watchcity,