 |
|
2x more efficient than MPEG-4 Part 2 (natural video) encoding |
|
 |
|
3x smaller file size than comparable MPEG-2 encoders |
|
 |
|
Faster download time
|
|
 |
|
Substantially higher quality video (SNR)
|
|
 |
|
No fast motion blurring inherent in MPEG-4 (advanced motion compensation) |
|
 |
|
Anticipates error-prone transport over mobile networks |
|
Software Function :
The Digital video recorder adopts a high performance Windows XP real-time multi-tasking operating system, to perfectly implement all the functions needed to build a surveillance system.
Compression function:
Supports a maximum of 64 channels video in. Each channel can be compressed independently in 25F/S (PAL) or 30F/S (NTSC), using H.264 algorithm. Both variable bit-rate and variable frame rate are supported.
Support max 64 channels audio in. Each channel can be compressed independently, using an OggVorbis audio standard. The output bit-rate is 16 kbps.
The output video and audio streams are integrated to generate the synchronized H.264 stream. Video and audio coincide with each other from beginning to end when the stream is played back.
Supports following resolution on every channel:
PAL:4CIF (704*576), DCIF(528*384), 2CIF(704*288),CIF(352*288), QCIF(176*144);
NTSC: 4CIF (704*480), DCIF(528*320), 2CIF(704*240),CIF(352*240), QCIF(176*120)
Supports multi-zone motion detection & position configurable OSD & LOGO. Supports watermark.
Network Functions:
Supports TCP/IP (ARP, RARP, IP, ODP, TCP, PPP, PPPoE, DHCP, SNMP, etc).
Supports broad-band transmission (ADSL, etc).
Supports narrow-band transmission (PSTN, etc).
Streams of one or more channels, Net DVR's running state and alarm state can be accessed through network.
Net DVR's parameters can be set through the network.
Supports remote control of PTZ.
Streams can be recorded in a remote host PC .
Files in Net DVR can be downloaded to or remotely played in a remote host PC.
Supports Net DVR remote upgrading.
PC hosts can gain direct control of Net DVR's RS-232 or RS-485 port.
Supports voice talk between host in surveillance center (back end) and Net DVR (front end)
Supports embedded web server. Browser can be used to access Net DVR.
Storage Functions:
Supports 6 kinds of record trigger mode: Schedule mode, alarm mode, motion detection, motion detection & alarm, motion detection | alarm.
Won't lose frames when switch record files
Supports hard disk sleep mode.
Supports FAT32 file system.
Supports HDD smart
Supports cyclic and non-cyclic record mode.
Supports network access storage (NAS).
Supports USB flash disk, USB hard disk, USB CDRW for backup.
Preview & Playback Functions:
Supports Monitor; Supports VGA;
Switch quickly in preview mode;
Supports partial zone sheltering;
Supports local file Play and time play, support play fast, play slow, pause, play frame one by one, etc;
Supports OSD, LOGO
PTZ control:
Supports Pan-Tilt-Zoom control and Preset through front, keyboard and network;
Supports most popular PTZ protocol;
Ability to customize new PTZ protocol;
Alarm Functions:
Supports Motion detection alarm, switch alarm, signal lost alarm, exception alarm, etc;
Supports setup of alarm related with PTZ preset;
