Best Practices of CCTV - Implementing Successful Video Security Systems

CCTV Buyers Guide provides a comprehensive overview of the use of a successful system of video surveillance of your business or residence. This guide contains information to help in planning your video monitor, choose the products that best fit the requirements of the CCTV system and help make important decisions, the installation will save you time and money.The information was derived from use 100 CCTV systems and call centers that collected CCTV ReplyProblems of business and private customers. This guide combines the data of the past, CTV projects and gives the reader something more to the successful CCTV project

There are many details to consider when it establishes the right CCTV camera system. Professional video surveillance is not an economic effort and budget should be developed, and the best way to be considered. This guide will help the novice buyer in reviewing CCTV camera and recording system for their CCTVand video surveillance needs.

Security System

The first task of a successful CCTV project is to set out the key objectives of the CCTV.

o How many cameras are required?

o What are the most important FOV (Field of View (s))?

o What are the requirements for registration?

o What are the lighting conditions for each camera position?

Where I live or video surveillance or a second video monitor?

o How long do you need to keep your video files?

Cameras, video cameras, there are specialFoV selected on the basis of need, lighting conditions and camera position. There is no such thing as a "one size fits all the successful CCTV project. It 'important to each camera position, and select the camera best suited for this location.

Answer the following questions:

or indoor or outdoor?

or light conditions (day and night)?

or mounting positions?

Indoor Dome Camera

The indoor dome camera is used in 90% of the general femaleApplications. It 'available in a variety of configurations including standard color, day / night infrared versions. It can be mounted on a horizontal or vertical surface, but is usually mounted on the ceiling. lens options on the dome, their use in certain applications, such as limiting the video more than a 20mm lens. Dome cameras are the first choice for camera positions inside.

Box Camera

A box camera is a standard camera mounted on its own or in one case. The BoxCamera uses a separate lens that screws on the front and the flexibility for different needs and FoV is sold without a lens. An auto-iris lens is a small cable that connects to the camera for iris control in various light conditions.

Outdoor Dome

Outdoor Dome Cameras are typically hard shell roof covers acts of vandalism that have the same flexibility in a variety of lens options. Day / night dome cameras in the open air in applications that are commonEntry and exit points with limited lighting at night.

Day / Night Camera

The day / night camera is the best choice for low light conditions. The cameras are standard color in the light of day, day / night camera switches to digital mechanic with a low lux B / N.

Infrared Camera

Even if cameras provide infrared light illumination of the FoF monitoring of areas available, without infrared light allows. Te IR LEDs automaticallyilluminated and off the camera that supports S / W mode in low light camera views in complete darkness.

PTZ

Pan-Tilt-Zoom camera offer the ability to see in all directions and optically zoom in as required. PTZ cameras, standard color, day / night PTZ cameras and some IR modes have been introduced recently. The CCTV operator, PTZ cameras to automatically rotate volatile organic compounds. Options include Auto-tracking applications that dynamically MovXactdefined areas.

Information on camera

Sony CCD are the dominant element in today's video surveillance cameras. Sony makes some cameras, but the CCD market. Do not think that Sony makes the camera touted as "Sony 1 / 3" Super HAD CCD Camera "as many manufacturers advertise their cameras. The camera features a Sony CCD, but camera is not from Sony and almost every camera brand to be out there. important factors in the quality of the lens, and vari-focal auto-iris capability, the quality of the cameraHousing or body and lens optics are the differences in a professional CCTV camera.

Facts about cameras:

o If you purchase a $ 80 camera, you will receive a $ 80 to see.

or 480 TV lines should be a minimum requirement of professional CCTV project.

or position of the camera and lens on the right is the key to capturing quality video

cameras or love light and thieves hate the light! Add lighting wherever possible

Camera Cases

Box cameras can be mounted in a varietyCabinet. outdoor enclosures in cold climates, a heating / ventilation that keeps frost and condensation on the lens and the camera. Heaters / fans are generally 24VAC and should be the choice of network video surveillance.

Camera position

Camera installation is critical to the success of the CCTV project. Cameras should be mounted as close as possible the field should be as close to the subject and the camera, the better theIdentification of the subject is. correct target selection based on the position of the camera and the FoV required is essential to ensure the quality of the images.

Digital Video Recorder

DVRs are an important component of any successful CCTV project. The video resolution is bigger, recording speeds are getting faster, and video data compression is to reduce the size of video files. TeraByte storage capacity is becoming common in many CCTV applications. Network or remote monitoring of CCTV videoStandard in all professional DVRs on the market in 2007 and distributing video over LAN, WAN and the Internet have the DVR is a new market outside of video security surveillance as Business Systems understands that management can monitor key areas of business 24 hours a day. No longer just a security video recorder, the DVR has become a business tool for managing remote monitoring applications.

To choose the correct DVR for each application, the following questionsmust be resolved.

o How many channels (cameras)?

or what is the speed of registration is required?

or how long to keep the video files (disk size)?

o What are the key features of the application?

o Where there is a DVR?

or remote monitoring requirements?

When choosing the right DVR for your CCTV application, ensure that necessary to determine the amount of cameras now and in the next 24 months. DVRs are available in 4, 8, 9 and 16 channel incrementsand this selection is critical because adding cameras above the DVR channels available to require an additional DVR, not just additional channels. DVR systems in large installations are divided into 16 channels units and are monitored and managed by a central management system.

The rate of absorption is critical to many CCTV applications. 30 fps (frames per second), such as real-time video, so you get to 30 fps for the application, 480 fps for 16 channels and 240fpsrequired for 8 channels. Many CCTV applications in real time (30 fps) live video channels and 7-15 fps to view the recorded files. E 'acceptable to have 7-15 fps for recorded files in many applications, but technology in DVR systems has pushed real-time video recording of the masses and 30 fps recording speed will soon be the standard will be available in all channels that we today.

Vide file storage is much easier and less expensive in 2007 effectively than ever. DVR storagelevel is common and terabyte drives have become faster and more reliable. Storage of video data files can IT departments of all business-critical data and network storage drive is jointly managed. Premium DVR via USB ports for external storage and LAN-based video servers are common. An essential component of any DVR system is the ability to access video files. The software that DVR manufacturers are given ownership of the DVR el 'Ability to retrieve files chronologically or based on certain security events is important for the DVR product.

PC-Based DVR vs Stand Alone

DVRs, most of the video recorder on the market sold by 2006. DVR-based computers are becoming increasingly popular because of the cost and features provide the latest generation of DVR cards on the market in 2007. The computer-based Windows PC delivers the reliability and performance in today's DVR systems,systems are necessary to the security of mission critical video. The open architecture of PC-based DVR systems allow easy integration into corporate LANs and technology upgrades are at the component level. Software upgrades and hard drive storage additions are far less expensive than DVR owners. Stand Alone DVR recording systems are typically embedded Linux operating system. The stand-alone DVRs are widely used worldwide in retail security and provide reliable video recording for 4-16 channels.Most DVRs on the market offer network remote access and CD R / W archiving.Computer-based DVR systems are reliable, fast and do not have many modern applications found on standalone systems.

Video Compression

MPEG4 and H.264 video compression are the elections in 2007. In summary, MPEG4 and H.264 is far better. The key to video compression is the resolution and size of the video. high-resolution video files are monster size files and video compression for storage andThe streaming video is essential for the application. major advances in video compression will be seen in 2007, and H.264 is the codec of choice for DVR manufacturers.

H.264

This uses the latest innovations in video compression technology for high-definition video quality from the smallest amount of video data is necessary. Smaller files to save on bandwidth and storage costs over previous generations of video codecs. H.264 delivers the same quality as MPEG-2 to a third to a halfthe data rate and up to four times the size of MPEG-4 part 2 to the same data rate. H.264 video equipment is used in the latest equipment for high-definition video, DVD and Blu-Ray should be considered for any professional CCTV project.

Network access and remote viewing

Network access is the ability to remotely monitor a video server on LAN, WAN or Internet. A very important question for any DVR system is the ability to monitor and access to live recordings fromRemote access. Most DVR today have a LAN RJ45 connector, the VCR can be connected to the LAN like any other PC in the office.

DVR Advanced Features

Many CCTV systems are releasing advanced security and specialty software for security enhancements. These include:

Subject or counting

or POS Integration

O PTZ Auto-Tracking

O Face Detection

or integration of access control

CCTV wiring and layout of the system

DVR place of choicethe optimum location for the DVR system, where the area of ​​access to the central control and regional security. The DVR is the heart of the CCTV system and must be protected to ensure that it is safe from theft and damage. If the vulnerability includes the theft of the DVR component, all evidence from under the arm of the thief is carried out. And thieves know this, so sure that the DVR system is in a lock box or a zone of safety.

The camera is powered

Each camera requires either 12VDC or 24VDC professional. Both options are unacceptable power and some CCTV systems require both. power plants are in 4,8,16, and more channels.

Cable Options

Traditional video cable is RG59 coax cable. Siamese twin cable is often used to provide RG59U coax with a pair of 18-gauge wiring for the needs of the camera. The double cable allows a single cable run to each camera for video andPower.

Cat-5 Options

UTP (Twisted Pair) cable is most popular among Cat-5e/Cat-6 cabling used in networks. CAT cabling is lighter and less expensive coax cabling and requires balun connectors to match impedance of the video signal. UTP and coaxial connections are acceptable up to 1000 feet. A balun is used to match the impedance on Cat-5 connections on the DVR and camera connections.

The successful CCTV project

or Quality Plan

or QualityCameras

o Quality DVR

o Quality Installation

Author: Steve McNeal

AMA Security

2/17/2008

Best Practices of CCTV - Implementing Successful Video Security Systems

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