PI Manufacturing DVR-TVI-04, Руководство пользователя

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Digital Video Recorder User Manual
69
Play back record files on one or several channels searched out by restricting event type (motion detection, alarm
input or VCA). Channel switch is supported.
Steps:
1. Enter the Playback interface.
Menu>Playback
2. Click and select to enter the Event Playback interface.
3. Select Alarm Input , Motion , VCA as the event type, and specify the start time and end time for search.
4. Click Search , and the record files matching the search conditions will be displayed on a list.
5. Select and click button to play back the record files.
You can click Back button to return to the search interface.
If there is only one channel triggered, clicking button takes you to Full-screen Playback interface of
this channel.
If several channels are triggered, clicking button takes you to the Synchronous Playback interface.
Check checkbox to select one channel for playback or select multiple channels for synchronous
playback.
The maximum number of channels for synchronous playback supported varies to different models.
6. On the Event Playback interface, you can select the main stream or sub stream from the dropdown list for
playback.
The toolbar in the bottom part of
Playback interface can be used to control playing process.
Pre-play and post-play can be configured for the playback of event triggered record files.
Pre-play: The time you set to play back before the event. For example, when an alarm triggered the
recording at 10:00, if you set the pre-play time as 5 seconds, the video plays back from 9:59:55.
Post-play: The time you set to play back after the event. For example, when an alarm triggered the recording
ends at 11:00, if you set the post-play time as 5 seconds, the video plays back till 11:00:05.
7. You can click or button to select the previous or next event. Please refer to Table 6.1 for the
description of buttons on the toolbar.
6.1.4 Playing Back by Tag
Purpose:
Video tag allows you to record related information like people and location of a certain time point during playback.
You are also allowed to use video tag(s) to search for record files and position time point.
Before playing back by tag:
1.
Enter Playback interface.
Menu>Playback
2. Search and play back the record file(s). Refer to Chapter 6.1.2 Play Back by Channel for the detailed
information about searching and playback of the record files.
Click button to add default tag.
Click button to add customized tag and input tag name.
Figure 6. 5 Add Tag
Max. 64 tags can be added to a single video file.
3. Tag management.
Click button to check, edit and delete tag(s).