Data exchange method

Mobile communication device is used for the user (40) terminal (10) and first communication unit (20, 21) are communication unit (30) and a computer unit at the method between the data exchanging, the first communication unit (20, 21) are communication unit (30) and computer unit of different of the environment. When the communication unit (20,21) and mobile communication unit are three distance (R), a relationship between the two, and upper ends of the near field wireless connection mode exchanging data, a data is transmitted by the first communication unit is a computer unit. When the second communication unit (30) (10) are spaced with a mobile communication unit are in the distance (R), relates is arranged on the upper two. The data exchanging generating through the manner of near-field radio is connected with the communication unit (10) and second communication unit (30).