Follow us on:
Follow us on Facebook  Share via Twitter  Share via LinkedIn
 

Search...
Hi-Tech Security Solutions Business Directory


IP cameras are not always IP network friendly
May 2008, CCTV, Surveillance

The benefits of IP cameras are self evident, however, eager sales people and pressurised security personnel might be tempted into installing a set of cameras without giving due consideration to the impact they will have on the corporate network.

Simply assuming that IP cameras will make use of the corporate network to transmit their images is a serious error that will not only reduce or completely kill the operations of the cameras, but could also affect the running of the business.

Networks were designed to, and are used to, transfer business data in copious amounts, but in some companies even today's networks are straining at all the information people and applications transmit. It is therefore critical to ensure IP camera traffic will not disrupt the flow of business data before installing the cameras.

To prevent any unpleasantness, a network impact analysis needs to be completed before the rollout begins. A network impact analysis is simply a way to determine the health of one's network and its capacity to handle more traffic. There are numerous tools companies can choose from to do the analysis, with certain vendors punting tools they prefer, but the process itself is pretty standard.

Network audits

To start with, a high-level audit is done to obtain a birds-eye view of the network, its components, operations, the opinions of those managing and using it, as well as existing strategies that will place an added strain on it. In this process, each system and hardware component is categorised.

This in itself is a worthwhile exercise as it often highlights weak links in the network where older technology is creating a bottleneck. It also allows management to see exactly what data is traversing the network daily - a discovery that shocks many business leaders. Knowing what data the company is transporting often leads to new company rules disallowing social networking sites and videos (and other unsavoury items found on the Internet), a move that often lowers network utilisation dramatically.

A service provider worth its salt will also review the event logs of its customers' servers, workstations and managed devices to try to squeeze the ultimate performance from their systems. Many service providers will ignore the log because scanning them can be a boring and lengthy task no one really wants to undertake.

Once completed however, the company will have a clear understanding of what its network does and what additional loads it can carry. The next step is to determine what load the new network of IP cameras will add.

Additional image bandwidth

One of the benefits of IP cameras over CCTV systems is that their images can be tweaked to suit the needs of the company. Administrators can, for example, only allow one image to be broadcast every few seconds or have full motion video. New technologies in which cameras manage themselves will prevent the devices from transmitting any images until the camera recognises a problem, sounds an alert and starts broadcasting.

Analysing the needs of the company will assist in designing the optimal camera setup that uses but does not abuse the network. Determining the exact bandwidth usage of a camera is difficult. It depends on factors such as image size, compression ratio, frame rate (images per second) and resolution.

Fortunately, there are many tools available to assist in determining how much bandwidth cameras with specific settings will consume. These tools also offer a good idea of the storage requirements of different camera settings.

If the corporate network cannot handle the traffic, the team responsible for the video images will have to consider either a joint operation with IT to upgrade the network, or to create a separate network specifically for images, or reducing the bandwidth required by reducing the quality and therefore the size of the images transmitted.

A careful analysis of the existing network and the security requirements of the company will empower the management team to make an accurate decision on the best course of action.


  Share via Twitter   Share via LinkedIn      

Further reading:

  • A commonsense guide to ­protecting electrical substations
    May 2015, CCTV, Surveillance, Government and Parastatal (Industry)
    With electricity being top-of-mind for South Africa, perhaps we can learn from US efforts to create a standard for securing utilities. John Romanowich, president and CEO of SightLogix offers insight into the issue.
  • 30 years in South Africa
    May 2015, Legrand Southern Africa, CCTV, Surveillance
    Legrand, manufacturer of products and systems for electrical and digital building infrastructures, opened a South African subsidiary 30 years ago.
  • Mall makes the transition to IP
    May 2015, Hikvision, CCTV, Surveillance, Case Studies
    Somerset Mall has installed 130 Hikvision network cameras to protect the safety of visitors and stores alike throughout the complex, the third-largest shopping centre in the province.
  • Retail surveillance improved in Germany
    May 2015, CCTV, Surveillance
    German retailer placed considerable effort in building an impermeable security infrastructure for protecting consumers and employees. Twenty-four Vivotek cameras were installed throughout the complex.
  • New HDCVI Lite series
    May 2015, Dahua Technology, CCTV, Surveillance
    Dahua Technology has introduced a new 1080p HDCVI solution with a more affordable price, which consists of 1080p 1200-Lite-series HDCVI cameras and S2-series tri-brid DVRs.
  • National public safety project for Ethiopia
    May 2015, CCTV, Surveillance
    ZTE video surveillance solution won the bid of city security surveillance project of Addis Ababa from the Information and Network Security Agency of Ethiopia (INSA).
  • Axis in a corner
    May 2015, Axis Communications SA, CCTV, Surveillance, Products
    Axis Communications has announced its first corner-mount fixed network camera. The new Axis Q8414-LVS features a stainless steel anti-grip casing and is impact resistant, supporting the IK10+ 50 joules rating as well as the IP66/NEMA 4X rating for water resistance.
  • Canon expands network camera range
    May 2015, Canon South Africa, CCTV, Surveillance
    Canon Europe has announced the addition of nine new network security cameras to its range. The new high performance cameras are ideal for a variety of indoor and outdoor environments.
  • An open door to surveillance
    May 2015, Graphic Image Technologies, CCTV, Surveillance
    LC Sequ-door improves productivity and customer service with a remote surveillance solution from GIT, featuring cameras and a SerVision Digital Video Recorder.
  • Reduce bandwidth by 50% or more
    May 2015, Axis Communications SA, CCTV, Surveillance
    Axis Communications has introduced Zipstream technology, allowing customers to benefit from reduced bandwidth and storage requirements without having to invest in new cameras or software. Axis’ Zipstream ...
  • New 2K module camera
    May 2015, Products, CCTV, Surveillance
    Dallmeier has added another model to its 5200 Nightline series, the MDF5200HD-DN. This is a compact module camera which is ideally suited for installations in automated teller machines, gambling tables and display panels.
  • H.265 HD IP camera
    May 2015, Products, CCTV, Surveillance
    ZNV recently announced its H.265 HDIP camera. With the built-in new-generation video image compression and transmission technologies complying with the H.265 standard, ZNV 7200-series IP cameras enable ...

 
 
         
Contact:
Technews Publishing (Pty) Ltd
1st Floor, Stabilitas House
265 Kent Ave, Randburg, 2194
South Africa
Publications by Technews
Dataweek Electronics & Communications Technology
Electronic Buyers Guide (EBG)

Hi-Tech Security Solutions
Hi-Tech Security Business Directory (HSBD)

Motion Control in Southern Africa
Motion Control Buyers’ Guide (MCBG)

South African Instrumentation & Control
South African Instrumentation & Control Buyers’ Guide (IBG)
Other
Terms & conditions of use, including privacy policy
PAIA Manual
         
    Mobile | Classic

Copyright © Technews Publishing (Pty) Ltd. All rights reserved.