Ключевые слова: alarm, alert, alertness, background, building, camera, cctv, circuit, city, closed, control, crime, danger, device, digital, electrical, equipment, facade, guard, inspect, inspection, ip, modern, monitoring, nobody, observe, online, outdoors, outside, prevention, privacy, private, professional, protection, record, safety, secure, security, spying, street, supervision, surveillance, system, technology, television, town, video, vision, wall, watch,