| 摘要 |
The present disclosure provides a system for passively intercepting signals from a cellular communications equipment. The system includes a plurality of interceptor devices distributed remote from the at least one server and each including, housed within a weatherproof enclosure and operatively coupled with one another, a wide band radio receiver, an embedded computer board and a power over ethernet board. Each interceptor device is able to demodulate the intercepted cellular signal to obtain an identifier of the cellular equipment (for example, IMSI, IMEI, TMSI, MAC address or RNTI). The interceptor devices may communicate with each other via Bluetooth RTM, Wi-Fi RTM or similar. An embodiment describes use within a retail outlet to track cellular device users as they move around the stores within the retail outlet. |
