Dahua Mobile DVR Series - Event Info; Speed; Gyo

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4.16 Event Info
4.16.1 Speed
It is to view vehicle running kilometers information, total mileage and etc.
Step 1 From Main menu->Vehicle->Speed, enter Speed interface. See Figure 4-93.
Figure 4-93
Step 2 Set parameters.
 Speed ratio: The parameter to calculate speed.
 Speed: Speed value
 Mileage ratio: Speed mileage correction.
 Mileage cumulation: select cumulation type.
 Mileage: Display mileage value.
 Clear: Clear mileage value.
 Start mileage: Set start mileage value.
 Pulse 1: Display the frequency from the first pulse.
 Pulse 2: Display the frequency from the second pulse.
Step 3 Click Save button.
4.16.2 Gyo
It is to detect the vehicle turn over, collision or the sharp turn.
For installation reason and so on, the default value in the following interface may different from the
actual installation position. If there is no position verification, system may generate an alarm even
when the vehicle is properly running.