| 摘要 |
A device for identifying and recording the positions of route reference points (formerly kilometre posts) or geographical points from a moving vehicle without having to register a deceleration time. The passage of the moving vehicle in front of the reference point is recorded either in time with respect to a time origin or in distance with respect to the starting point of the vehicle's journey. The device is particularly intended to indicate to a vehicle travelling on a road or rail network the instant at which it passes in front of a reference point at the same time as identifying it. <IMAGE>
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