You can't. The normal student ID card is a full-time undergraduate and unified, while the National Open University student ID card belongs to adult and social continuing education. Normal student ID: With magnetic stripe, you can get a discount by bus. Adult college student ID card: No magnetic stripe, no discount on public transport. Open University refers to adult higher education institutions. Open universities can be divided into six types: public and government-funded open universities; Public, self-financing and non-profit open university.