6. The method of claim 1 , wherein the tenth byte only stores information with respect to the sequential identification number in its eight bits.
6. The method of claim 1 , wherein the tenth byte only stores information with respect to the sequential identification number in its eight bits. 7. The method of claim 6 , wherein the eleventh and twelfth byte store information of a first height coordinate with respect to a first height reference of the point where the two-dimensional code is located.