| 摘要 |
A LOCATOR EMERGENCY SYSTEM COMPRISES A HANDSET AND A LOCATOR DEVICE (B1, B2). THE HANDSET HAS AN ANTENNA SET (A10) CONSISTING OF A PLURALITY OF ANTENNAS WITH DIFFERENT ANGLES, UTILIZED TO RECEIVE SAID RF SIGNAL FROM THE CORRESPONDING LOCATOR DEVICE (B1, B2) IN A SPECIFIC TIME SLOT, AND USES THE FIRST ANTENNA TO RECEIVE SAID RF SIGNAL TO GENERATE A DIRECTIONAL VALUE. THEN, THE HANDSET USES A PROCESSOR (A30) TO COMPARE THE DIFFERENCE BETWEEN THE SIGNAL RECEIVING TIME AND THE SIGNAL EMITTING TIME TO OBTAIN A DISTANCE VALUE; IF THE PROCESSOR (A30) JUDGES THE DISTANCE OF THE LOCATOR DEVICE (B1, B2) IS OVER A PRESET VALUE, THE DIRECTION AND POSITION OF SAID LOCATOR DEVICE (B1, B2) IS DISPLAYED ON THE SCREEN OF THE HANDSET AND AN ALARM SIGNAL IS EMITTED TO NOTICE THE USER. IT MAY ADD A BUTTON (B50) IN THE LOCATOR DEVICE (B1, B2) OF THE PRESENT INVENTION. ONLY PRESS DOWN THE BUTTON (B50), A DISPLAY AND AN ALARM SIGNAL IS GENERATED IN THE CORRESPONDING HANDSET. THE DISPLAY SIGNAL CONSIST S OF A DIRECTIONAL VALUE AND A DISTANCE VALUE, UTILIZED TO WARN THE USER TO GO THE CORRECT DIRECTION AND POSITION TO HELP.
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