Ключевые слова: alarm, background, big, brother, camera, cctv, circuit, city, control, crime, electronic, equipment, fence, guard, industry, inspect, lens, light, monitor, monitoring, observe, outdoor, pattern, privacy, private, property, protect, protection, record, safe, safety, secure, security, shadow, surveillance, survey, system, technology, television, texture, urban, video, wall, watch, watching,