| 摘要 |
The present invention relates to a system for locating a mobile element, characterized in that it comprises: - at least one beacon (1) emitting radio messages; - at least one relay (2) capable of emitting a second message with a known lag following the receipt of a first message originating from said at least one beacon (1); - at least one sensor (3) capable of measuring in a local time base the instants of arrival of the messages originating from said at least one beacon (1) and at least one relay (2); - at least one position computer, that can be central or onboard each sensor, capable of determining the position of a mobile element on the basis of the arrival time information; the mobile element being able to be a beacon (1), a relay (2) or a sensor (3). |
