CCTV & IP Video Surveillance
Advancements in digital photography have lead the CCTV
industry into a massive overhaul with the advent of IP Video (or
Network Cameras) in 1996. The pioneer being our partner Axis
Communications. Many vendors now manufacturer network cameras
including Mobotix, Panasonic and Sony to name a few.
IP CCTV solutions come into their own when used with megapixel
cameras, this enables highly detailed images to be zoomed after
the recording has been made. A traditional analogue solution is
limited with resolution and would distort recorded images when
zoomed on.
These types of cameras are attached directly to your computer
network and are powered over it saving money on any electrical
requirements at the camera end and speeding up the overall
installation.
IP cameras coupled with surveillance software from Milestone
are our preferred solution. Whilst the initial cost of IP cameras
may be more expensive than a traditional analogue camera the
benefits are enormous and the quality fantastic.
Some of the key advantages of IP cameras are:
Cost advantages
- Reduced system cost and added functionality due to
general-purpose IP networking equipment infrastructure.
- Lower cost of cabling in installations (CAT5e instead of
RG-59 coaxial cable).
- Reduced space requirements in large (many camera) CCTV setups
because video switching and routing is done via computer and does
not need physically large and expensive video matrix switchers.
Flexible image format
- Support for a variety of image resolutions including both
standard analog CCTV resolutions (CIF, NTSC, PAL, and SECAM) and
megapixel resolutions.
- Capability for digital zoom of high-resolution megapixel
images.
- Progressive scan (versus interlaced scanning).
- Ability to select specific frame rates and resolution for
each camera in a system. Extensible network infrastructure
- Convergence onto new or existing IP cabling infrastructure,
including sites with multiple buildings.
- Ability to use Power over Ethernet allowing for one cable to
handle power and data.
- Capability for deploying with a wireless bridge.
- Ability to use legacy coaxial cables with appropriate
converters.
- Ability to use fiber optic links with appropriate
twisted-pair to fiber converters.
- Transmission of commands for PTZ (pan, tilt, zoom) cameras
via a single network cable.
- Simple to add one camera at a time to the system.
Greater functionality
- Wireless allows the camera to be placed just about
anywhere.
- No limit on resolution inherent in standard analog video
formats. Megapixel cameras can far exceed image detail from
conventional CCTV cameras.
- On-camera automated alerting via email or file transfer in
response to video motion detection or dry-contact alarms.
- Support for different streaming media and compression formats
to relieve transmission bandwidth and data storage
requirements.
- Encryption of camera control data and audio/video data.
- Support for new embedded intelligent video motion detection
(video analytics) with shape recognition and counting applied to
objects, people, and vehicles.
- Integration of video surveillance with other systems and
functions such as access control, alarm systems, building
management, traffic management, etc.
- Remote configuration, diagnostics, and maintenance.
- Future-proof installations with field-upgradeable products
due to the ability to upgrade camera firmware over the
network.