Évaluations - 3, GPA: 3.7
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Facilité d'utilisation
2) internal Hard Disks ?• Connect up to 2 external Hard Disk Arrays (Max. 8 Hard Disks per set) to enhance the storage capacity ?• Hot swappable Hard Disks for highest surveillance availability ?• Non-editable video data with data loss at 1-second level (only caused by bad sectors in Hard Disks after recording) ?• Anti-faked digital watermark ?• Retrieve Video (in .MPG or .MOV format) to floppy disks, ZIP drives, CD-RW, DVD RAM etc. ?• Versatile display formats: full-screen, 4, 7, 9, 10, 13, and 16 video windows ?• Alarm history log for video loss, motion, & alarm input ?• Multi-level password to ensure high degree of security ?• Recording rate: up to 60 fps for NTSC, 50 fps for PAL ?• Playback rate: up to 30 fps for NTSC, 25 fps for PAL ?• Independent record & playback. ?• Built-in flash memory, power off data protection, power on and run ?• Built-in 16x8 video matrix ?• Built-in Watch Dog Timer ?• Graphics user interface with built-in real-time kernel, NO windows OS required ?• Multi-Language support (English, Chinese, German, Japanese, Spanish, Italian, Finnish, Swedish, French, Dutch and Portuguese.) ?• Remote surveillance and playback through WEB browser (such as IE or Netscape) or i-mode mobile phone ?• Remote alarm notification ?• Time Stamp function for recording image ?• Printer supported 1 Administrator’s Guide and Operating Instructions 1.2 Technical Overview 1.2.1 Video Input and Output The digital video recorder is designed to support either NTSC/EIA or PAL/CCIR standard. To make the auto detection of video standard work, at least one camera must be connected to the video input. The product features video camera inputs with a passive looping output for each. Camera input impedance termination is set independently for each camera automatically. Synchronizing or phasing cameras is not required to achieve the frame rate of 30 fps for NTSC/EIA or 25 fps for PAL/CCIR. Video surveillance and playback is supported by VGA monitor connection and optional main monitor connections for composite formats. The main monitor displays the selected cameras in any available display format. Another composite video output is provided for call monitor that displays any alarm images or the live images of all the installed cameras sequentially. 1.2.2 Video Processing The video processor controls the switching of the built-in video matrix according to the system configurations. The video encoder keeps analyzing the video signal from the cameras, and encoding the incoming pictures in JPEG format or MPEG-1 format that is digitized and smaller in size at 30 fps for NTSC/EIA or 25 fps for PAL/CCIR. During video playback, the video decoder decodes the digitized format, no matter it is JPEG or MPEG-1, and then displays the decoded pictures on the VGA monitor screen or TV monitor screen. 1.2.3 Video Storage and Retrieval The encoded pictures are stored in the hard disks, with the stored frame rate for each camera set by the administrator. If any event (Alarm, Motion, or Video Loss) happens, all the encoded pictures for the correspondent camera for the preset pre-record duration will be saved to the hard disk, and the recording rate for that camera will be changed to its alarm recording rate afterwards for the preset post-record duration. When the recording reaches the end of the recording hard disk, the system will automatically switch to the next available hard disk and record from the beginning of that hard disk. 2 Administrator’s Guide and Operating Instructions During video playback, the selected pictures can be saved to floppy disk, ZIP disk, CD-RW, DVD RAM etc. in .MPG format for MPEG-1 encoded video or .MOV format for JPEG encoded video. For Time-Lapse Mode Recording Time, please refer to Appendix B. 1.2.4 Motion Detection The digital video recorder continuously monitors all camera inputs for motion. When motion is detected, the system reacts according to the motion action set by the administrator, including increase of recording frame rate, sounding the buzzer, triggering the alarm output, event log, etc. Motion detection options for different time types can be set for each camera input using a 16 (width) by 12 (height) target overlay. You can also enable or disable motion alarms for different time types. However, the recording frame rate is NOT influenced by motion detection for the digital video recorder. 1.2.5 Video Display The VGA monitor and main TV monitor display either live camera pictures or pictures from hard disks. The display resolution is 640x480 for NTSC or 800x600 for PAL. As many as 16 million colors can be displayed in the following screen formats: full screen, 4 windows, 7 windows, 9 windows, 10 windows, 13 windows, and 16 windows. All the main displays are window based look and feel for ease of user operations. The call monitor displays full screen images of cameras associated with alarms or images from the installed cameras sequentially. It is based on switched analog camera input. 1.2.6 Video Play...