Must Know
Must Know
Technical Zone
Must Know
Technical Zone
Must Know
Multiple streams allow each video stream to be delivered in a different resolution, frame rate, and image quality for individual quality or bandwidth
demands. Because different devices such as PCs and mobile phones have different requirements for image sizes, resolutions, and frame rates,
multiple streams give users a higher level of flexibility for dealing with camera images on different platforms. For example, the camera can send a
small CIF, MPEG-4 image to a 3G cell phone and a VGA, H.264 image to a PC for live monitoring while at the same time sending a large
megapixel, MJPEG image to an NVR for storage.
Conventional network cameras require a power cable for power supply and an Ethernet cable for data transmission. PoE
(Power-over-Ethernet), developed by the IEEE802.3af task force, enables power to be supplied over the same Ethernet cable, and
thus eliminates the use of power cables. By connecting a PoE-supported camera to a PoE switch, you need not deploy additional
power cables. PoE Plus is the advanced version of traditional PoE. Following the new IEEE 802.3at standard, PoE Plus can provide
up to 30 watts of power supply, giving network cameras more flexible, hassle-free installation.
IPv6 standard consists of 128 bits, which are divided into eight parts, each group containing four 16-bit digits and is separated by a
colon. IPv6 IP addresses are presented in a different format from IPv4, for example 3ffe:0305:0000:0000:0000:0000:0000:0001.
PoE (Power-over-Ethernet) , PoE Plus
Multiple Streams
Tamper detection can detect and respond when the camera is redirected, defocused, blocked or spray-printed. It allows cameras
to be installed in tampering-prone places such as transportation stations or prisons.
Tamper Detection
Intelligent motion detection can distinguish object motions
from natural movements and trigger alarms based simply
on object motions. The function, mainly for outdoor
applications, can eliminate false alarm rates due to
environmental noise that appears with conventional motion
detection.
Intelligent Motion Detection
Loitering detection can detect an object or a person that has
been staying in a predefined area over a given time. The
function effectively prevents crimes because suspicious
objects or activities are detected before damage is caused.
Loitering Detection
Conventional Motion Detection Intelligent Motion Detection
Blockage Redirecting Spray-paintingDefocusing
Intelligent Video
Presence of Lingering Object Alarm Triggered after 30 Seconds
0:01
IPv6
Non-PoE Switch
Non-PoE
Network Camera
Splitter
Power
LAN
LAN
Injector
LAN
PoE Switch
PoE
Network Camera
LANLAN
Network Camera
3G Cell Phone for Viewing
176x144 MPEG-4 5fps
1920x1080 MJPEG 30fps
640x480 H.264 30fps
Desktop PC for Viewing and Storage
NVR for Storage
21
22
0:30
Feature
Address Space
Configuration Setting
Priority Control
Authentication
IPv4 Comparison
32 bits
Manual
No
No
IPv6
128 bits
Auto
Yes
Yes
IPv6 provides larger address space
IPv6 doesn’t need an independent DHCP
IPv6 achieves higher video quality
IPv6 provides safer data transmission
(10 pages)
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