Ключевые слова: access, access control, authenticate, authentication, authorized, blank, building, card, clean, closed, control, design, device, disturb, door, electric, electronic, electronic lock, electronics, enter, entrance, entry, equipment, handle, home, hotel, hotel key, house, indoors, key, lock, magnet, modern, plastic, privacy, protect, protection, room, safe, safeguard, safety, secure, security, security system, system, technology, unlock, white, wooden,