XProtect Express 1.1; Administrator's Manual - Milestone

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Milestone XProtect ® Express 1.1Administrator's ManualMJPEGMotion JPEG—compressed video format whereeach frame is a separately compressed JPEGimage. The method used is quite similar to the I-frame method used for MPEG, but no interframeprediction is used. This allows for somewhat easierediting, and makes compression independent of theamount of motion.Monitor1) A computer screen. 2) An application used inprevious versions of XProtect Express for recordingand displaying video. The Monitor application hasbeen discontinued.MPEGCompression standards and file formats for digitalvideo developed by the Moving Pictures ExpertsGroup. MPEG standards use so-called lossycompression as they store only the changesbetween frames, removing often considerableamounts of redundant information. Keyframesstored at specified intervals record the entire view ofthe camera, whereas the frames that follow recordonly pixels that change. This helps greatly reducethe size of MPEG files.NTLMNIn a Windows network, NT LAN Manager is anetwork authentication protocol.PanomorphA type of lens that allows the creation and viewingof 360-degree images.P-framePPredictive frame—the MPEG standard for digitalvideo compression uses P-frames together with I-frames. An I-frame, also known as a keyframe, is asingle frame stored at specified intervals. The I-frame records the entire view of the camera,whereas the frames that follow (the P-frames)record only the pixels that change. This helpsgreatly reduce the size of MPEG files.PINPersonal identification number (or personal identitynumber)—number used to identify and authenticateusers.PingA computer network administration utility used todetermine whether an IP address is available, bysending a small amount of data to see if it responds.The word ping was chosen because it mirrors thesound of a sonar. You send the ping commandusing a Windows command prompt.PollingRegularly checking the state of something, forexample, whether input has been received on aparticular input port of a device. The defined intervalbetween such state checks is often called a pollingfrequency.PortLogical endpoint for data traffic. Networks usedifferent ports for different types of data traffic.Therefore it is sometimes, but not always,necessary to specify which port to use for particulardata communication. Most ports are usedautomatically based on the types of data included inthe communication. On TCP/IP networks, portnumbers range from 0 to 65536, but only ports 0 to1024 are reserved for particular purposes. Forexample, port 80 is used for HTTP traffic, which isused when viewing web pages.POS(Also PoS) Point of sale; the physical place where asale is made, for example, at the cash register.Post-recordingThe ability to store recordings from periods followingmotion and/or specified events. Based on incomingvideo being buffered on the XProtect Express serverin case it is going to be needed for a motion- orevent-triggered recording. Using post-recording canbe highly advantageous: if, for example, you havedefined that video should be recorded while a gateis open, being able to see what happensimmediately after the gate is closed may also beimportant.Pre-alarmwww.milestonesys.com 172 Glossary of terms
Milestone XProtect ® Express 1.1Administrator's ManualPre-alarm images is a feature available for selectedcameras only; it enables the sending of images fromimmediately before an event took place from thecamera to XProtect Express via e-mail.Pre-bufferSee the description of Pre-recording.Pre-recordingThe ability to store recordings from periodspreceding detected motion and/or specified events.Based on incoming video being buffered on theXProtect Express server in case it is going to beneeded for a motion- or event-triggered recording.Using pre-recording can be highly advantageous: if,for example, you have defined that video should berecorded when a door is opened, being able to seewhat happened immediately prior to the door beingopened may also be important.Privacy maskingThe ability to define if and how selected areas of acamera's view should be masked beforedistribution. For example, if an XProtect Expresscamera films a street, you can mask certain areas ofa building (for example, windows and doors) withprivacy masking in order to protect residents'privacy.PTZPan/Tilt/Zoom—highly movable and flexible type ofcamera.PUKPersonal Unblocking Key or PIN Unlock Key—number used as an extra security measure for SIMcards.Roccurs, or when a specific period of time begins.Recording is then stopped after a specified amountof time, for example, when motion is no longerdetected, when an event occurs, or when a timeperiod ends. The term recording originates fromthe analog video era, when images were taped onlywhen the record button was pressed.Recording Server serviceWindows service (without any user interface) usedby XProtect Express for recording and displayingvideo. Video is only transferred to the surveillancesystem while the Recording Server service isrunning.Restore pointRestore points allow you to return to a previousconfiguration state. When a configuration change isapplied in XProtect Express, a restore point iscreated. If something goes wrong in yourconfiguration, you can browse through restorepoints, and return to a suitable one.SCSA file extension (.scs) for a script type targeted atcontrolling clients.SDKSSoftware Development Kit—programming packageenabling software developers to create applicationsfor use with a specific platform.SIMSubscriber identity module—circuit stored on asmall card inserted into a mobile phone orcomputer, or other mobile device. The SIM card isused to identify and authenticate the user.RecordingOn IP video surveillance systems, recording meanssaving video and, if applicable, audio from acamera in the cameraâ€s database on thesurveillance system. In many IP surveillancesystems, all the video/audio received from camerasis not necessarily saved. Saving of video and audioin a cameraâ€s database is in many casesstarted only when there is a reason to do so, forexample, when motion is detected, when an eventSLCSoftware license code—product registration coderequired for using the XProtect Express software. Ifyou do not have system administrationresponsibilities, you do not have to deal with SLCs.System administrators use SLCs when installingand registering the software.www.milestonesys.com 173 Glossary of terms
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