vn-vi cctv install - best practices xx180- 10-00-1107

7/31/2019 VN-VI CCTV Install - Best Practices XX180- 10-00-1107

1/16

Vicon Part No. 8009-8180-10-00 Section 1 Rev 1107

XX180-10-00

Video Intelligence System

Vicon Industries Inc. does not warrant that the functions contained in this equipment will meet yourrequirements or that the operation will be entirely error free or perform precisely as described in thedocumentation. This system has not been designed to be used in life-critical situations and must not beused for this purpose.

Copyright 2007 Vicon Industries Inc. All rights reserved.Product specifications are subject to change without notice.Vicon and its logo, ViconNet and its logo are registered trademarks of Vicon Industries Inc in the United States and other countries.

VICON INDUSTRIES INC., 89 ARKAY DRIVE, HAUPPAUGE, NEW YORK 11788

TEL: 631-952-CCTV (2288) FAX: 631-951-CCTV (2288) TOLL FREE: 800-645-9116

24-Hour Technical Support: 800-34-VICON (800-348-4266)

UK: 44/(0) 1489-566300 WEB: www.vicon-cctv.com


2/16


3/16

Important Notice

This manual is delivered subject to the following conditions and restrictions:

This manual contains proprietary information belonging to Vicon. Such

information is supplied solely for the purpose of assisting explicitly andproperly authorized users of the ViconNet system.

No part of its contents may be used for any other purpose, disclosed to any

person or firm or reproduced by any means, electronic or mechanical, withoutthe express prior written permission of Vicon.

The text and graphics are for the purpose of illustration and reference only.The specifications on which they are based are subject to change without

notice.

The software described in this manual is furnished under a license. Thesoftware may be used or copied only in accordance with the terms of that

agreement.

Information in this manual is subject to change without notice. Corporate and

individual names and data used in examples herein are fictitious unlessotherwise noted.


4/16

i

CONTENTS

PREFACE ........................................................................................................... 2ABOUT THIS DOCUMENT .............................................................................................2

Conventions Used in this Document .............................................................................. 2RELATED DOCUMENTS................................................................................................2GLOSSARY ................................................................................................................3

CHAPTER 1. INSTALLING THE CCTV EQUIPMENT ................................................................ 4PLANNING THE INSTALLATION.......................................................................................... 4INSTALLING THE CAMERAS ..............................................................................................5

Choosing a Camera Enclosure .............................................................................................. 5Mounting the Camera .......................................................................................................... 5Positioning the Cameras ...................................................................................................... 6Camera Field of View (FOV) ................................................................................................. 7Tips for Averting Nuisance Alarms ........................................................................................ 7Camera Alignment ............................................................................................................... 8Cabling ............................................................................................................................... 9Minimizing Electromagnetic Interference (EMI)...................................................................... 9

ILLUMINATION........................................................................................................... 10APPENDIX A SITE SURVEY FORM ........................................................................................... 11

FIGURES

Figure 1: Mounting the Camera..................................................................................5Figure 2: Camera Detection Region (FOV)....................................................................6Figure 3: Perimeter Protection with VMD Camera Installation..........................................6Figure 4: Good and Bad Examples for Locating the Camera............................................8Figure 5: Suspended Camera to Count Vehicles or People ..............................................8


5/16

2

Preface

Abou t t h i s Docum en t

This guide provides CCTV installation tips and Best Practices for the ViconNet VideoIntelligence System (ViconNet VI). To use ViconNet VI you have to install the other

components of the CCTV correctly. This document is to help the installer in the pre-installation steps of the ViconNet VI installation.

This guide is to assist the CCTV Installer/Engineer in designing the CCTV installation.

Each site has its own unique parameters that should be taken into consideration. Thetips in this document are recommendations only!

Conven t ions Used in t h i s Docum ent

Conven t ion Exam p le

Names of buttons, windows and tabsare shown in bold font

Press the Nex t button.

Referenced links are displayed in

it alic and colored fontSee Predefined Schedule.

Rela ted Docum ent s

Docum en t Desc r ip t i on

V iconNe t V I - Con f ig & V I - Se t up

User Guid e

V iconNe t V I - M on i t o r Use r Gu ide

User Manual that Describes the use of

the VI-Config and VI-Setup programs.

Explains how to operate the VI-Monitor

software application.


6/16


7/16

4

INSTALLING THE CCTVEQUIPMENT

Planning the InstallationThe system design and planning is critical in ensuring that ViconNet VI performs as

required. ViconNet VI provides a high level of flexibility in its configuration, but isstill dependent on the quality of the video signals and scene content for it to

deliver a high quality solution and work at peak performance.

The exact requirements for site security must also be clarified through Tender

documents or Engineering Specifications. This is vital in ensuring the systemdesign and installation meets the customers requirements and expectations.

Site Survey - Conduct a site survey to determine site requirements such as thepositioning of cameras, lighting, as well as existing and required communications

infrastructure. Verify location and type of existing illumination including coverageto determine its suitability. If necessary specify additional illumination.

Establish the location of the equipment room for the installation of the ViconNet VI

system in order to confirm the cable run lengths to the cameras as early aspossible.

Pay special attention to the location of trees, and other vegetation that may affectdetection performance, as well as the camera positioning and field of view. Check

the location of any nearby roads to determine whether street lighting or car lightsmay present an erroneous lighting problem after dark.

Site Images Prepare a detailed set of site images covering all protected areas.The site images provide a visualreminder when assessing the site plan whenworking offsite. These also provide a reference point during installationand

commissioning. Ideally the digital images should be taken under a variety oflighting conditions, both during the day and at night.

Control Room - Make sure to allow enough space in the room for the equipment

required to support the system, including power supplies, monitors and videoequipment. The control room power source must be adequate and stable,

depending upon security requirements a backup power supply (such as a UPS)

should be considered. However, to ensure total system reliability in the event ofpower failure, a backup supply would also be needed to provide power for all the

cameras and other detectors, as well as any communications equipment.

NOTE

All tips given at the CCTV Section are recommendations only and each

site installation should take into consideration the specific siteconditions.


8/16

CCTV - Installation Guide 3.1 Installing the CCTV Equipment

5

Installing the CamerasThe video signal from the cameras must be a standard CCIR/PAL or RS170/NTSC,

color, monochrome, dual-cameras or thermal.

Choosing a Camera EnclosureOutdoor installation enclosures depend on the local environmental conditions.In general the camera housing should include:

Sunshield complete with a rain gutter to prevent large rain drops fromfalling in front of camera lense

A heater to prevent condensation

Isolation of the camera body from electrical ground

Mounting the Camera

Ensure the camera mount and pole is completely stable, even during windyconditions. Though the algorithms within ViconNet VI allow for some camera

shake, it is advisable to use a heavy duty, stable mounting location or pole.

Figure 1: Mounting the Camera


9/16


6

Positioning the Cameras

Place the camera at a height that allows the detection algorithms to function andyet high enough to prevent any tampering with the camera. The true sizes of

objects can only be judged when viewing at an angle. The recommended height is

anything between 4-8 meters (12-24 feet), the exact height is dependant on thearea it has to cover, the topographic conditions, the type of intrusion to bedetected, camera CCD and the lens.

Camera positioning should be such that the dead zone of one camera is covered

by another cameras field of view. Ensure that there is at least one point where anintruder is detected by at least two cameras.

Figure 2: Camera Detection Region (FOV)

The position of the cameras relative to lighting is extremely important. Do notinstall cameras too close to lights (particularly infrared illuminators), which could

attract insects, or facing into lights, windows, the sun, or in areas that have a largenumber of reflections or shadows.

PerimeterFence

FieldofView(FOV)

Figure 3: Perimeter Protection with VMD Camera Installation


10/16


7

Do not forget the possibility of street lighting and car headlights at night. When the

lighting is below or to the side of the camera, the recommended safe distance is 2

meters (6 feet). If the lighting is directly above the camera, then insects flying uptowards the light source in front of the camera could cause nuisance alarms or

partially obscure the view of the camera. If this is the case, ensure that thelighting is well above the camera, in excess of 4m (from the camera).

Camera Field of View (FOV)

Setting the correct FOV of the camera is critical for reliable detection and

determines the correct camera lens required.

The most important points are:

1. Ensure there is an adequate detection area.

The minimum detection area requirement is the distance crossed by a humanintruder on the ground within two seconds.

2. Ensure that the FOV at the farthest detection range does not exceed the

minimum size needed to be detected according to the security demands.

As a rule of thumb, to detect a human being crawling, the target should be atleast 5% of the total height of the scene.

3. Decide what you want the system to detect, and then verify it by trying to

view the actual intruder type on the CCTV monitor.

4. The tilt of the camera should have a FOV that does not include the sky.

5 when cameras are looking along a fence line, the majority of the camera FOVshould be focussed on the monitored side of the fence.

6. Take into consideration the positions of the sunrise and sunset, as well as

reflections from objects in the FOV to limit any blinding of the camera due to

bright light.7. Do not install cameras facing directly into bright lights or IR illuminators.

Tips for Averting Nuisance Alarms

When installing cameras in camera housings, the following tips are to help youavert some known causes of nuisance alarms.

1. The application of insect repellent material such as pest control strips or

surface spray reduces any nuisance alarms caused by insects or spiders in ornear the camera housings.

2 Place a cut out 4mm plastic tube across the top of the shield or housing near

the front. This prevents water droplets falling in front of the camera from thesun or rain shield housing.


11/16


8

Camera Alignment

These tips are to help you align the camera and ensuring design requirements:

1. Place traffic cones or markers at the edges of the expected detection areas to

provide a mechanism for initially aligning the camera for a perfect FOV.

2. Alternatively have a person use a monitor and a two way radio to directanother person walking the site.

3. When locating the camera, see Figure 4 below for both good and badexamples.

The good example shows the object lengthways, which is correct.

The left-hand example shows a tilted camera correctly positioned to capturean upright person clearly. The right-hand example shows a badly positioned

camera for capturing an object that is horizontal to the camera lens.

Good (Horizontal) Bad (Camera Horizontal)

Figure 4: Good and Bad Examples for Locating the Camera

Overhead Camera for CounterDetector

Suspend the camera pointed at the ground, at a height allowing for the detectionalgorithms to function correctly, where a person must not be more than 30% of

image. Accurate counting of objects can only be achieved when viewing heads andshoulders. The recommended height is anywhere between 3-8 meters (10-24

feet), whereby the optimum camera height is dependant on the area required tocover, the local topographic conditions, type of object (vehicle or people) you

intend to detect, camera CCD and the type of lens used.

CameraAimedataPersons

HeadandShoulders

Figure 5: Suspended Camera to Count Vehicles or People


12/16


9

Cabling

Ensure that the correct grade of coaxial cable is used in the installation. Thisensures that image degradation is minimized as much as possible from the outset.

Because the quality of the video is influenced by the cable length, you must take

into consideration the impedance and capacitance qualities of the cable type used.This is to ensure the cable is able to transmit the images clearly over the requireddistance.

As an example, RG59 standard cable should be used as a minimum requirement.

In a monochrome system, the cable length should be restricted to 250 m (800ft)otherwise cable compensators must be installed. Signal degradation due to cable

length has a far greater effect on color video, where the coaxial cable should berestricted to 150 m (500ft) after which cable compensators must be installed.

The shorter the cable is between each capture-card channel and the camera, the

better the video picture quality. For longer distance twisted pair cables or RG11coaxial is available. For distance longer then 1 km fiber optic is definitely

recommended.

Minimizing Electromagnetic Interference (EMI)

The PC and its associated cables and peripherals, should be shielded from EMI if itis to operate at its optimum performance.

Sources of EMI include:

Communications transmitters

Computers and peripherals

Electric motors

Heaters

Arc welders

Automobile engine ignitions

Lightning

If ViconNet VI is to be installed in an environment together with sources of EMI,

the effect of EMI must be reduced to a minimum or eliminated altogether. This canbe achieved by either removing or shielding the source of EMI, or fitting a suitable

suppressor to the cables.

Consideration should also be given to installing fiber optic links, which are not at

all susceptible to EMI.


13/16


10

Interference Caused by Ground Loops

In some installations, where cameras or monitors are located at a large distancefrom ViconNet VI, considerable ground loop currents can be generated and may

cause interference both on the video display and in the detection processes. These

could present themselves as false or nuisance alarms.Ground loop current can also be caused by supplying power to differentcomponents of the system from different phases of a multi-phase supply. For

example, the cameras, monitors, computers and other individually powered

components comprising the system. Wherever possible, the power source to all theindividual components of the system should be fed from a common phase of the

supply.

Where ground loop currents cause a problem in a ViconNet VI installation, theinstaller may reduce the effect by installing video isolation transformers on each

video channel affected.

IlluminationThe most challenging lighting conditions for CCTV systems can occur at dawn ordusk. It is vitally important to be aware of the variable lighting conditions under

different circumstances.

The illumination around the site should be as uniform as humanly possible with nomajor contrast swings.

It is better to utilize high levels of ambient lighting throughout the field of view ofthe camera rather than subjective lighting systems. To ensure continuous

monitoring by ViconNet VI, the lighting should be on at all times during the hoursof darkness including twilight time. This can be controlled using a photo-cell based

device.The best type of visible lighting is that closest to normal daylight. For example, a

white light source rather than a colored light source such as sodium vapor lighting.

When visible illumination is used the lighting should be sufficient for the human

eye to see targets at the maximum detection range. When using IR illumination,

verify the intensity by viewing the camera output on a monitor.

NOTE

For determining the FOV and Illumination ONLY, use a CCTV Monitorand not the naked eye.


14/16

11

Appendix A SITE SURVEYFORM

Customer_______________________ Date_______________________

Location________________________ Survey by__________________

Site Plan

Location of Lighting

Location of Equipment Room

Communications Infrastructure Identified

Trees identified and marked

Location of fences and barriers

Location of nearby roads

Location of adjacent structures

Location of existing CCTV systems or other detectors

Location of all structures

Other Requirements

Site Images Acquired

Clarification of customer and security expectation

Clarification of any special security requirements


15/16

CCTV - Installation Guide 3.1 Vicon Standard Equipment Warranty

12

VICON STANDARD EQUIPMENT WARRANTY

Vicon Industries Inc. (the Company) warrants your equipment to be free from defects in material andworkmanship under Normal Use from the date of original retail purchase for a period of three years,with the following exceptions:

1. VCRs, all models: Labor and video heads warranted for 120 days from date of original retail purchase. Allother parts warranted for one year from date of original retail purchase.

2. Video monitor CRT (cathode ray tube) and LCD monitors, all models: One year from date of original retailpurchase.

3. Uninterruptible Power Supplies: Two years from date of original retail purchase.

4. VDR-304 and VDR-308 Recorder Series: One year from date of original retail purchase.

5. Normal Use excludes prolonged use of lens and pan-and-tilt motors, gear heads, and gears due to

continuous use of autopan or tour modes of operation. Such continuous operation is outside the scope ofthis warranty.

Date of retail purchase is the date original end-user takes possession of the equipment, or, at the sole discretion of theCompany, the date the equipment first becomes operational by the original end-user.

The sole remedy under this Warranty is that defective equipment be repaired or (at the Companys option) replaced,at Company repair centers, provided the equipment has been authorized for return by the Company, and the returnshipment is prepaid in accordance with policy.

The Company will not be obligated to repair or replace equipment showing abuse or damage, or to parts which in thejudgment of the Company are not defective, or any equipment which may have been tampered with, altered, misused,or been subject to unauthorized repair.

Software supplied either separately or in hardware is furnished on an As Is basis. Vicon does not warrantthat such software shall be error (bug) free. Software support via telephone, if provided at no cost, may bediscontinued at any time without notice at Vicons sole discretion. Vicon reserves the right to make changes

to its software in any of its products at any time and without notice.

This Warranty is in lieu of all other conditions and warranties express or implied as to the Goods, includingany warranty of merchantability or fitness and the remedy specified in this Warranty is in lieu of all otherremedies available to the Purchaser.

No one is authorized to assume any liability on behalf of the Company, or impose any obligations on it in connectionwith the sale of any Goods, other than that which is specified above. In no event will the Company be liable forindirect, special, incidental, consequential, or other damages, whether arising from interrupted equipment operation,loss of data, replacement of equipment or software, costs or repairs undertaken by the Purchaser, or other causes.

This warranty applies to all sales made by the Company or its dealers and shall be governed by the laws of New YorkState without regard to its conflict of laws principles. This Warranty shall be enforceable against the Company only inthe courts located in the State of New York.

The form of this Warranty is effective August 2, 2006.

THE TERMS OF THIS WARRANTY APPLY ONLY TO SALES MADE WHILE THIS WARRANTY IS IN EFFECT.THIS WARRANTY SHALL BE OF NO EFFECT IF AT THE TIME OF SALE A DIFFERENT WARRANTY IS POSTEDON THE COMPANYS WEBSITE, WWW.VICON-CCTV.COM. IN THAT EVENT, THE TERMS OF THE POSTEDWARRANTY SHALL APPLY EXCLUSIVELY.


16/16

Vicon Industries Inc.

Corporate Headquarters89 Arkay Drive

Hauppauge, New York 11788631-952-CCTV (2288) 800-645-9116

Fax: 631-951-CCTV (2288)

&Infofax: 800-287-1207

Vicon EuropeHeadquarters

Brunel WayFareham, PO15 5TX

United Kingdom+44 (0) 1489 566300

Fax: +44 (0) 1489 566322

Brussels OfficePlanet II - Unit E

Leuvensesteenweg 542B-1930 Zaventem

Belgium32 (2) 712 8780

Fax: 32 (2) 712 8781

Far East OfficeUnit 5, 17/F, Metropole Square

8 On Yiu Street, ShatinNew Territories,

Hong Kong(852) 2145-7118

Fax: (852) 2145-7117

Internet Address: www.vicon-cctv.com

vn-vi cctv install - best practices xx180- 10-00-1107

Documents