Pelco DX4104 Series manual DST DATE/TIME Search and Playback

DATE/TIME SEARCH

The Date/Time search feature has the following guidelines:

•Playback timeline: Use the timeline calendar and time controls to specify the search criteria.

•Searching for event-specific video: While in the Live or Search modes, drag the timeline pointer to a position in the timeline to initiate a search. The timeline provides a status bar that represents video recorded during the various recording modes (normal, alarm, and motion).

•Verifying the search device: To ensure that the proper camera channel is selected, check the camera information box above the playback timeline or verify that the desired view panel is framed with a thin red outline.

•View format: The Date/Time search mode is supported in full-window view mode.

•Select All: Allows you to search and playback video from all cameras.

To search video by date and time:

1.On the toolbar, click the Search icon, . By default, the Search window appears in the Date/Time mode.

2.In the Client window, click a pane.

3.(Optional) Verify that Select All check box is selected.

4.Select the date and time on the playback timeline:

a.In the Date box, select a date.

b.In the Time box, select a time.

5.To start play back:

a.(Optional) To listen to recorded audio during playback, on the Playback control, click the Audio icon .

b.On the Playback control, click the “Forward playback” button .

DST DATE/TIME SEARCH AND PLAYBACK

If the unit is configured for daylight saving time (DST), the DVR uses a different approach to store and display video. When DST ends, the DVR’s internal time automatically adjusts backward one hour. Video is time-stamped and recorded one hour before and one hour after the time change. When DST begins, the DVR’s internal time automatically adjusts forward one hour and the unit records normally.

The Date/Time search feature allows you to view video recorded before and after a DST time change (refer to Figure 31). For example, the DVR is configured for DST to end at 2:00 a.m. on November 1, 2009. The time period between column 01 and column 02 for channel 1 represents two recording periods:

DST active (during DST): Video recorded between 1:00 a.m. to 2:00 a.m.

DST ended (after DST): Video recorded between 1:00 a.m. to 2:00 a.m.

Figure 31. Video Recorded Before and After DST Changed

When you select a DST time period for playback, the DST dialog box appears (refer to Figure 32 on page 41). You are prompted to select a time period from which to play back video: "DST off" (after the time shifts back one hour) or "DST on" (before the time shifts back one hour).

40 C4632M (11/09)