| 摘要 |
PURPOSE:To provide the data transmitter which can exactly recognize the current position and condition of a mobile station and can transmit exact instruction data to each mobile station. CONSTITUTION:A base station B transmit cargo collection instruction data including area data expressing destinations to plural mobile stations M1-Mn, the respective mobile stations M1-Mn execute luggage collection based on the cargo collection instruction data and after the cargo collection is completed, cargo collection completion data are transmitted to the base station B. The luggage collection completion data contain the area data contained in the cargo collection instruction data and load capacity data showing the load capacity of cargoes collected based on the cargo collection instruction data. Based on the area data and the load capacity data included in the received cargo collection completion data, the base station B judges the current positions of the respective mobile stations M1-Mn and the remaining capacity of loading and selects the mobile station to transmit the new cargo collection instruction data.
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