Cloud recordings (cloud storage service required) :
step 1, Click the home page - select the corresponding "camera" preview
step 2. Click "Cloud Playback" in the function bar below.
step 3. Select the date and time to query playback in the calendar icon at the top left of the timeline, select the type of video to filter in the "video filter" option at the bottom, and drag the progress bar of the timeline to view the playback of the corresponding time period.