XProtect Express 1.1; Administrator's Manual - Milestone

Milestone XProtect ® Express 1.1Administrator's ManualNameDescriptionRecord when certain conditions are met. When you select this option,specify required conditions (see the following) which enables you to storerecordings from periods preceding and following detected motion and/orspecified events.ConditionallyBuilt-in motion detectionOn eventExample: If you have defined that video should be stored when a door isopened, being able to see what happened immediately prior to the doorbeing opened may also be important. Say you have specified that videoshould be stored conditionally on event, with a start event called DoorOpened and a stop event called Door Closed. With three seconds of prerecording,video will be recorded from three seconds before Door Openedoccurs and until Door Closed occursSelect this check box to record video in which motion (see "Motiondetection & exclude regions" on page 101) is detected. Unless postrecording(see the following) is used, recording will stop immediately afterthe last motion is detected.Select this check box to record video when an event occurs and untilanother event occurs. Use of recording on event requires that events (see"Overview of events and output" on page 111) have been defined, and thatyou select start and stop events in the neighboring lists.Start EventStop EventEnable pre-recordingEnable post-recordingTip: If you have not yet defined any suitable events, you can quickly do it:Use the Configure events list, located below the other fields.Select required start event. Recording will begin when the start eventoccurs (or earlier if using pre-recording; see the following).Select required stop event. Recording will end when the stop event occurs(or later if using post-recording; see the following).Available only when the option Conditional is selected. Specify thenumber of seconds for which you want to record video from beforerecording start conditions (that is motion or start event) are met.Available only when the option Conditional is selected. Specify thenumber of seconds for which you want to record video after recording stopconditions (that is motion end or stop event) are met.How does pre- and post-recording work? XProtect Express receives video in a continuous stream from thecamera whenever the camera is enabled and scheduled to be online. This is what lets you view live video, but italso means that XProtect Express can easily store received video for a number of seconds in its memory (a.k.a.buffering). If it turns out that the buffered video is needed for pre- or post-recording, it is automatically appendedto the recording. If not, it is simply discarded.Note that manual recording (on page 85) may be enabled. With manual recording, Smart Client users with thenecessary rights (see "Configure user and group rights" on page 140) can manually start recording if they seesomething of interest while viewing live video from a camera which is not already recording. If enabled, manualrecording can take place even if recording for individual cameras is set to Never or Conditionally.Recording and archiving pathsWhen you configure video and recording (see "About video and recording configuration" on page 75) for specificcameras, properties include:www.milestonesys.com 97 Advanced configuration