Ключевые слова: alarm, background, blue, building, camera, cctv, concept, control, detection, electrical, electronic, equipment, eye, guard, home, house, industry, install, lens, light, look, monitor, monitoring, observe, outdoor, privacy, private, property, protect, protection, record, safe, safety, secure, security, service, sky, spy, surveillance, system, technology, television, thief, tree, urban, video, view, vision, watch, work,