Ключевые слова: access, background, camera, cctv, communication, connect, connection, control, data, device, digital, electronic, equipment, firewall, green, guard, internet, lens, mobile, monitoring, network, observe, outdoor, park, point, privacy, private, property, protect, protection, record, safety, secure, security, signal, spot, spy, surveillance, symbol, system, technology, television, urban, video, view, web, white, wireless,