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 With the conversion of video surveillance from analog to digital equipment, it is more and more logical to utilize your existing network for this application and reduce costs on your security systems service and maintenance. Modern IP video cameras provide all the features of their analog equivalents, and also allow storage of the video footage digitally on servers. This increases the efficiency of the system through the use of many digital-only features not available for analog systems, since the compactness of compressed video actually decreases the storage costs for kept information, eliminating the need to create analog tapes and store them.
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The growth in IP Surveillance systems to enhance office security is quickly gaining significant ground on conventional analog closed circuit television (CCTV) security camera installations for reasons of both performance and cost-benefits.
 So if you are looking to augment your office security with the added benefits of digital video recording which you can set up to record when motion is detected even at specific times, than IP Video Sreveillance may be the solution you've been looking for when it comes to your office security.
IP Surveillance & IP Video Surveillance systems digitize video streams at each camera on the network, this digital stream is then transferred over a standard wired or wireless Internet Protocol (IP) network. Unlike traditional analog closed circuit television systems that transport analog signals back to a centralized video recording device, IP surveillance systems digitize and compress the video at each camera and send a digital signal across a common IP or Ethernet network. IP Surveillance employs a decentralized data encoding system that sends binary data across a shared, standards-based IP network – the same one used for email, Web pages, file transfers, and other data network applications.
Since digital networked surveillance is IP-based, users can monitor, store, and archive
video, audio and associated application data over the Internet or across private data
networks. Compressed video can be carried anywhere that the IP network extends as
opposed to CCTV systems that are built on and require dedicated coaxial cabling.
Anyone with the proper access credentials and a standard browser can monitor video as
well as control and configure the camera from any location that has Internet or private
network connectivity.
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Since networking equipment and IP protocols adhere to open standards, the IP
Surveillance system itself is low cost, and new integration opportunities and applications
are continually coming into focus. Event-driven alert and alarm software for IP systems
already far exceed the capabilities of old CCTV systems. Digital IP cameras can be used
to monitor on a 24x7 basis and be configured to trigger on events while immediately
alerting administrators when certain conditions arise or specific thresholds are reached.
Benefits of IP Surveillance
A growing number of security organizations, small and medium sized businesses, and
home users throughout the world use networked IP Surveillance equipment, and industry
analysts expect that number to rise dramatically as organizations of all sizes continue to
understand the benefits of the technology. The advantages that IP Surveillance has over
traditional analog systems are numerous, and the benefits usually fall into one of the four
following categories:
Cost Effectiveness
When compared to analog CCTV systems, networked IP camera systems have several
cost advantages. First, the wiring required is less expensive. Most buildings contain
installed Cat-5 data networking cable, and if additional wiring is necessary, Cat-5
costs less per foot than single purpose analog coaxial cable. Thus, IP Surveillance can
often use the existing wired infrastructure and not require the installation of a second
and parallel cabling infrastructure.
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A digital, packet-switched network enables centralized, cost-effective management.
IP networks carry all kinds of data, including video, audio and standard document
files like email and web pages. Any existing infrastructure and personnel used to
manage the data network can easily absorb a new IP Surveillance application.
Infrastructure maintenance, monitoring and management of IP Surveillance
applications are easily learned without the need for specialized components, cabling,
or training required for a separate analog CCTV alternative. The elimination of a
separately installed and managed infrastructure will save time and resources.
Since IP networks employ well documented, understood, and heavily deployed
standards for cabling and transmission protocols, the costs for equipment and service
have diminished as application adoption increases. Technology advancements and
adoption have already had a profound effect on the price of networking equipment
and digital cameras. Expect that trend to continue as competition naturally flourishes
in a standards-based deployment environment.
Advanced Functionality and Performance
Event Driven Intelligence
One of the most compelling reasons to adopt IP network surveillance is event-driven
intelligence. A regular digital video recorder (DVR) based surveillance system is only
as smart as the person monitoring it at the moment it is being monitored. With IP
networks there is access to a wide range of automated software settings and alert
systems that make security management more efficient, less costly, more intelligent
and less error prone.
IP systems handle motion detection, event triggers, and alert automation and have a
multitude of options for changing frame rates, resolution and timed record cycles. For example, certain cameras might only send data to the recording servers when a
specific threshold of motion is detected. Sensitivity settings can be adjusted so
insignificant movements will not trigger a recording. This saves recording space and
human analysis time by keeping only what is relevant to the particular security
situation at hand. With digital images, integration is possible with available third
party applications for license plate recognition, people counting, Geographic
Information Systems (GIS), and face recognition.
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Alerts can also be configured and emailed to any email address or group and retrieved
with any IP-connected communication system containing an email client. This
includes notifications to handheld PDAs, cell phones, or other IP connected devices.
With an analog camera system, none of these applications can be performed without
some digital conversion. The multiple analog/digital conversions required, however,
reduces image quality. With IP Surveillance systems, the digitization process occurs
once at the camera and is carried across the digital IP network. The video data starts
digital and stays digital throughout the infrastructure.
Superior Image Quality
Network IP Surveillance equipment also provides better image quality than analog
systems. Analog coax cables can compromise image clarity, since signals can degrade
over long cabling distances. Analog cameras adhere to NTSC/PAL standards,
effectively limiting resolution to 0.4 megapixels.
Network cameras, on the other hand, use progressive scan technology and high
resolutions that depict moving objects more clearly and cover larger areas with
sharper images. These technological advantages enable digital pan, tilt and zoom
features that analog systems can only perform with additional, dedicated cabling.
Securing the Security Camera
IP Surveillance systems can encrypt data across the network, so only the cameras and
servers know what kind of packets to expect across the system. Without the proper
authentication keys, outsiders cannot break into the network to steal video data or
feed false video into the system.
With analog systems, access is needed to the cabling to tap into the electrical circuit.
Video can be fed into the wire or recorded off of it at will without raising any
intrusion alarms. The analog system sees electricity coming across the wires. IP
systems are much more difficult to compromise because encryption requires two
nodes that agree on exactly what is being sent and received (and have the algorithms
or keys that decode the data). Any interruption to the data stream can automatically
trigger alarms and alerts.
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One-Way or Two-Way Audio
Since IP Surveillance systems are merely passing around information packets, any
kind of additional data (sound, graphics, applications, event triggers, etc) can
accompany the data stream. Thus, one-way or two-way audio requires only
microphones and speakers at the end points when used with appropriate IP cameras
that support audio capabilities. Analog systems, on the other hand, can’t handle single
channel audio or two-way sound channels without added cabling and expense.
Deploying audio with the video images becomes very simple in IP Surveillance
applications.
Back-Up and Storage
Storage systems are easier to configure and more reliable with IP systems as well. All
the redundant components found in standard computer based systems like RAID
disks, uninterruptible power supplies and secure off-site storage can be leveraged in
IP Surveillance applications. In many cases, the infrastructure may already exist and
available staff will not have to learn new storage systems. Analog systems, however,
require proprietary recording and back-up systems that add significant component,
maintenance, and training costs as the system grows. In addition analog tape based
recording systems require ongoing replacement tapes. After a period of use the tapes
become stretched, can no longer be effectively used, and must be replaced.
Flexibility of Deployment & Standards Based
The Internet Protocol itself offers a wide range of flexibility because it is a global
standard that runs on a wide range of open, standardized, low-cost equipment. “Best
of breed” products and services can be combined from an assortment of vendors.
Price competition and vendor choices truly make it a buyer’s market.
Of course, IP Surveillance data can be securely viewed anytime, anywhere from a
standard Web browser like Internet Explorer. This simply cannot be done with analog
systems that are relegated to the local redundant cabling infrastructure that has been
established. Remote site monitoring becomes difficult with analog CCTV systems.
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Ease of Expansion and Scalability
IP Surveillance applications are also highly scalable. Cameras can be added one at a
time, whereas DVR analog systems may require increments of 8, 16 or 24 additional
cameras. As a company grows, the digital system keeps costs in check.
With Gigabit and 10 Gigabit Ethernet readily available, the IP network is scalable as
well. Several cameras can be supported on the same IP infrastructure. Typical
switches and routers available today simply segregate traffic for larger scale video
applications. With proper network design, installations with 200-300 cameras are
common, and some organizations are easily using more than 1000 cameras at a time.
Storage and server systems scale easily and cheaply, with no need for specialized
recording equipment or training. The IP protocol is familiar to network
administrators therefore they have the knowledge needed to deploy IP Surveillance
applications.
Email us:info@infonaligy.com
Call us:817.329.9939 |
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