Ключевые слова: alarm, alertness, anti, cam, camera, cctv, control, crime, data, detail, detect, device, digital, electronic, equipment, external, guard, guarding, industry, lens, look, looking, modern, monitoring, observe, outdoor, protect, protection, record, recording, safe, safety, secure, security, sky, supervision, surveillance, survey, tech, technology, television, theft, urban, video, viewer, vision, visual, warning, watch, watching,