| 摘要 |
A security module (2) comprises a motion detector (4), a microcontroller (6) and an antenna (8). The motion detector (4) detects motion of the security module relative to a cellular telephone network. The security module (2) is adapted to be installed into the cash cassette of an ATM (Automatic Telling Machine) or any container in which valuable goods are stored. A tracking module (10) comprises a microcontroller (12) and an antenna (14) for receiving and transmitting radio frequency signals. The tracking module (10) enables a user to home in on the security module (2) via an exchange of radio frequency-signals. |
