| 摘要 |
A real time data retrieving method comprises enabling a control system in an off-land transportation to dial a ground call center, activating a data link between the control system and a satellite to allow the satellite to relay an operation information of the transportation to a ground gateway, transmitting the operation information from the ground gateway to a ground data storage which allows a network access thereto, and enabling a data subscriber connected to the call center to real time retrieve the off-land transportation from the data storage.
|
