| 摘要 |
<p>The method involves establishing a contact between a mobile communication unit (10) and communication units (20, 21) when the units (10, 20, 21) are at a preset distance (R), and producing a near-field radio communication within the distance. The data is exchanged between the units (10, 20, 21) by the communication, and the data is transmitted from the units (20, 21) to a computer. A contact is established between the unit (10) and another communication unit (30), and the data is exchanged between the units (10, 30) by another radio communication, when the units (10, 30) are at the distance.</p> |
