| 摘要 |
<p>Especially designed to send a very fast and effective alarm signal to an alarm reception centre, along with the exact geographical position of the user, all entirely automatically, the device according to the invention is based on a microprocessor (2), powered by a rechargeable battery (3), microprocessor (2) associated with a GSM/GPRS communications module (5), that includes a high-sensitivity GPS receiver, the device incorporating a button (7) to send a silent call to an alarm reception centre, as well as two buttons (8-9) to call two preset telephone numbers, as well as an on/off button (10) and a low power mode, and a function select button (11), which is used to select the means of sending the alarm signal, such that the latter may be sent by GSM, SMS or GPRS, ensuring that the alarm signal is always sent with the user's geographical position via the GPS system, so that the emergency services can respond as quickly as possible.</p> |
