| 摘要 |
The method involves transmitting a radio signal with usage information by a service system, and detecting the radio signal using an application installed at a user medium. The usage information is extracted from the radio signal and the usage data is transmitted back to the service system. The location of the user medium is determined by the application from the received spatial data. The location of the localized user medium determined from the spatial data is compared with the stations of the service system using the application. |
