Community Based CCTV Tech Spec - Final
Technical
Specification
Community-based CCTV Schemes
An Garda Síochána
Telecommunications Section
CONTENTS
PART 1 - CCTV SYSTEMS TO BE OPERATED BY COMMUNITY BASED GROUPS....... 3
1.1
1.2
1.3
1.4
INTRODUCTION .....................................................................................................................3
SCOPE OF THIS DOCUMENT ....................................................................................................3
COMMUNITY-BASED GROUP RESPONSIBILITIES .......................................................................3
ADDENDUM ..........................................................................................................................3
PART 2 - GUIDANCE NOTES FOR PROSPECTIVE APPLICANTS ...................................... 4
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
COMMUNITY-BASED CCTV SCHEME......................................................................................4
GUIDANCE FOR DESIGN OF A COMMUNITY BASED CCTV SCHEME...........................................4
CONSULTATION.....................................................................................................................4
OPERATIONAL REQUIREMENT ................................................................................................4
ANALYSIS .............................................................................................................................5
IMPLEMENTATION PLAN ........................................................................................................5
APPLICATION FOR GRANT AID ...............................................................................................5
INSTALLATION AND COMMISSIONING .....................................................................................5
PART 3 - VIDEO CAMERA AND ASSEMBLY....................................................................... 9
3.1
3.2
3.3
3.4
3.5
3.6
3.7
INTRODUCTION .....................................................................................................................9
COLOUR DAY/NIGHT CAMERA ...............................................................................................9
ZOOM LENS ........................................................................................................................ 11
ENVIRONMENTAL CAMERA HOUSING .................................................................................... 11
INFRARED LIGHTING............................................................................................................ 12
PAN AND TILT UNIT............................................................................................................. 12
CE COMPLIANCE................................................................................................................. 12
PART 4 - TRANSMISSION ......................................................................................................13
4.1
4.2
4.3
TRANSMISSION METHODS..................................................................................................... 13
SPECIFICATIONS RELATING TO COAXIAL, FIBRE-OPTIC AND MICROWAVE TRANSMISSION. ....... 14
RADIO LINKS....................................................................................................................... 14
PART 5 - CAMERA SITE - EQUIPMENT AND INSTALLATIONS....................................15
5.1
5.2
5.3
5.4
5.5
5.6
5.7
GENERAL ............................................................................................................................ 15
OUTDOOR EQUIPMENT CABINET .......................................................................................... 15
CAMERA MOUNTING BRACKETS........................................................................................... 15
CAMERA COLUMN (POLE) .................................................................................................... 15
CAMERA/EQUIPMENT LOCATION .......................................................................................... 16
CCTV SIGNS ...................................................................................................................... 16
ELECTRICAL MAINS SUPPLY ................................................................................................ 16
PART 6 - MONITORING CONTROL CENTRE ....................................................................17
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
6.10
6.11
CONTROL CENTRE............................................................................................................... 17
MONITORING FACILITIES ..................................................................................................... 17
SECURE TAPE AND MEDIA STORAGE CABINETS..................................................................... 18
SYSTEM MANAGEMENT FUNCTIONS ..................................................................................... 18
RECORDING /PLAYBACK ...................................................................................................... 19
ON-SCREEN TEXT DISPLAY .................................................................................................. 20
VIDEO MATRIX SWITCHING ................................................................................................. 20
VIDEO MULTIPLEXING ......................................................................................................... 21
VIDEO MONITORS ............................................................................................................... 21
S-VHS TIME LAPSE RECORDING ...................................................................................... 22
DIGITAL RECORDING ...................................................................................................... 23
PART 7 - SERVICES.................................................................................................................24
7.1
7.2
7.3
7.4
WARRANTY ........................................................................................................................ 24
MAINTENANCE CONTRACT .................................................................................................. 24
MAINTENANCE / UPGRADING ISSUES .................................................................................... 24
OPERATOR EQUIPMENT TRAINING ........................................................................................ 24
2
PART 1 - CCTV SYSTEMS TO BE OPERATED BY COMMUNITY BASED
GROUPS
1.1
Introduction
The Department of Justice, Equality & Law Reform intends to grant aid CCTV
schemes which meet certain criteria, operated by Community-based Groups. This
document outlines the minimum technical/operational criteria, which Community-based
CCTV Systems must comply with.
Each Community-based Group scheme will generally involve one or more interest
groups (stakeholders) representing various sections of the community. Examples of
different stakeholders might be:
Local Authority
Residents Association
Chamber of Commerce
Emergency Services
1.2 Scope of this Document
This document provides guidelines and specifications which are to be met by
Community-based Groups proposing to establish and operate a CCTV scheme and who
wish to be considered for grant aided funding from the Department of Justice, Equality
& Law Reform.
The first part of the document provides guidance to groups on how they might prepare
a statement of operational requirements and the actions required to gain the most
appropriate response from the CCTV system. This statement, compiled from each
stakeholders requirement, will form an Operational Requirement on which a CCTV
system may be designed which best meets the requirements of the Community.
The remaining part of the document provides technical guidance and specifications of
equipment and operating procedures designed to ensure that picture quality and content
meet the requirements of the observers and the Gardai.
1.3 Community-based Group Responsibilities
The Community-based proposal will be required to demonstrate it’s technical suitability
against the Groups Operational Requirement and Code of Practice.
Health and Safety in regard to the overall system, it’s operators/employees and the
general public are the responsibility of the Community-based Group.
1.4 Addendum
The Commissioner of An Garda Síochána, the Minister for Justice, Equality and Law
Reform and all respective servants, and employees thereof accept no liability for any
losses or injuries in connection with the works or the ongoing use of the CCTV
systems operated by the Community-based Group.
3
PART 2 - GUIDANCE NOTES FOR PROSPECTIVE APPLICANTS
2.1 Community-based CCTV Scheme
The scheme has been devised by the Department of Justice, Equality and Law Reform
to provide grant aid funding to groups representing local community interests who wish
to install and maintain a CCTV system in their area.
2.2 Guidance for Design of a Community Based CCTV Scheme
As an aid to designing a scheme, it is recommended that a methodology is adopted in
order to plan a scheme which best represents the requirements of the various stakeholders and provides a solution which achieves the benefits which such a scheme is
capable of providing.
The basis of any scheme should be an Operational Requirement, completed jointly by
the Group. The Operational Requirement will form the basis for the design and
operation of an effective and economic system. The methodology recommended here
provides a process that identifies key factors, which impact on performance of the
system and the way it will be operated.
2.3 Consultation
Consultation should be conducted within each area where such a scheme is envisaged.
Residents in particular should be fully consulted and informed of the proposal. It is a
requirement of the grant aid that residents are broadly supportive of the scheme. Care
should be taken on the design of the CCTV scheme to ensure that it is acceptable to
local residents regarding the location of equipment and equipment should be deployed
so as to avoid any undue intrusion.
2.4 Operational Requirement
Each stake-holder of the Group should be encouraged to undertake surveys of their
members requirements and compile a Operational Requirement document. In preparing
a Operational Requirement, each group or stakeholder should be provided with a plan
of the area concerned and an “Operational Requirement Check List” (Appendix “A”)
should be compiled and completed in respect of each problem encountered. The
observations of each stakeholder are prioritised and a plan or map of the area,
appropriately marked by the stakeholder, is drawn up.
The completed “Check Lists” together with the plan or map completed by each
stakeholder forms a comprehensive view of the problems encountered by the Group.
The combining and prioritising of all the requirements will provide the basis on which
the design and operation of the scheme can be formulated.
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2.5 Analysis
From the combined Operational Requirements submitted, the group should be in a
position to analyse the submissions and prioritise the requirements. Financial analysis of
the plan will need to be undertaken in order to size the plan to best meet the agreed
requirements and budgets. Capital costs, running/staffing costs and maintenance should
each be factored in. Applicants will need to demonstrate how running costs will be met
and that the system is sustainable for at least five years from the date of the installation
of the equipment.
Analysis of the individual stakeholder Operational Requirements and a financial analysis
will result in the overall Operational Requirement of the Group.
2.6 Implementation Plan
The grant awarded by the Department of Justice, Equality and Law Reform is a one off
payment for new schemes only. The agreed plan will therefore be implemented as a
single plan. Additional phases of a plan will not qualify for grant aid.
2.7 Application for Grant Aid
The Group will make application to the Department of Justice, Equality and Law
Reform in the format published within the issued Prospectus.
2.8 Installation and Commissioning
Following installation of the CCTV system, a full commission and test of the system is
carried out to ensure the system meets the specification and the Operational
requirements.
5
Suggested method to develop a community-based CCTV
scheme.
Area Plan
Area Plan
Stakeholder
1
Area Plan
Stakeholder
2
Priority 3
Stakeholder
3
Priority 3
Priority 2
Priority 3
Priority 2
Priority 2
Operational Requirement
Priority 1
Operational Requirement
Priority 1
Budgetary Costing
€ x+y
Priority 3
Priority 2
Operational Requirement
Priority 1
ANALYSIS
Budgetary Costing
€x
Priority 1
Marked Plan of Area
Implementation Plan
Code of Practice
Technical
Specification
Commissioning
Tests
Financial details &
Running Costs
Monitoring facility
Maintenance
Operational Requirement
Application for Grant Aid
Installation and
Commissioning
6
APPENDIX “A”
OPERATIONAL REQUIREMENT CHECK LIST
INTEREST GROUP ______________________
PLAN REF. NO.________
AREA OF INTEREST ___________________
REF No.________
OBSERVATION
Target to be Observed:
What Activity by the
Target is of Concern:
Purpose of the
Observation:
Picture Quality/Content
factors needed for
success:
Who Makes the
Response:
Time scale of the
Response for it to be
successful:
When is Observation
needed:
RESPONSE
Result of a successful
Response to the
Activity:
Conditions under which
the system needs to be
effective (Lighting/weather):
OBSERVER ROLE
What will the Observer
do when the activity
occurs:
How will the Observer
How quickly does the
know when and where to Observer need to act:
look:
CLASSIFICATION
Stake-holders:
i.e.
What Priority is
assigned to this task:
Likelihood of an Activity Benefits of doing the
occurring and how
action over not doing it:
often:
Local Authority
Chamber of Commerce
Residents Association
7
Emergency Services
8
PART 3 - VIDEO CAMERA AND ASSEMBLY
3.1
General
It is a requirement that each camera in the system is capable of Pan, Tilt and Zoom
(including other necessary functions), by an operator located at the monitoring centre.
The camera system should meet the requirements listed below and that of the
Operational Requirements. The specifications describe individual component parts of a
camera system, however, this does not exclude the use of integrated camera systems
(telemetry, pan/tilt unit, camera, lens and enclosure), provided that quality and feature
specifications are satisfied.
The following external camera types are recommended:
Pan, tilt and zoom camera system assembled by the Contractor.
Pan, tilt & zoom camera with integrated optics and telemetry (pre-built).
Dome camera with integrated optics and telemetry.
Each type of camera listed above exhibit attributes that may offer enhanced suitability
for particular operational requirements. Features and capabilities that should be taken
into account are:
Provision of high quality images both day and night.
Speed and control of operation
Cost.
Robustness
Low maintenance.
Aesthetic qualities, and visibility of the camera.
3.2
Colour Day/Night Camera
The specification defines the requirement for a colour camera for use in urban and rural
areas operating under a wide range of lighting conditions, including unlit areas.
The camera will provide twenty-four hour coverage and must be capable of producing
high-resolution and accurate colour images under a wide variety of conditions ranging
from high and variable levels of daylight, to low-light, to no-light.
The camera will be mounted within an environmental housing suitable for outdoor use
and provide a suitable level of robustness against abuse.
The camera will normally be mounted on a column or building at a nominal height of 7
metres above ground and located at a position providing good observation of the
required area.
9
The camera control system will provide a means to restrict intrusive viewing of areas
considered or notified as private. In areas with good street lighting the camera will be
required to operate normally in colour mode. A location, which suffers poor or nonexistent street lighting, will require a camera capable of viewing the required scene and
providing a suitable level of recognition. Cameras sited adjacent to unlit areas such as
open spaces and rivers are recommended to be capable of operation with Infrared
lighting, however in some instances it may be more appropriate to have additional
lighting installed or upgraded.
The colour camera is required to provide high reliability, capable of operating to
specification without the need for constant adjustment, maintenance or repair.
TV Standard
CCIR standard 625 lines, 50 fields PAL colour.
Effective Picture Elements
Not less then 752(H) x 582(V) pixels.
Resolution
Not less than 450 lines (luminance).
Image Quality
True colour image representation free of discoloration is
required.
Camera Sensitivity
Colour/monochrome camera
Better than 1.0 lux for colour images (AGC on).
0.5 lux for monochrome (f1.4).
Integrating camera
Better than 0.4 lux (f/1.2 AGC on) for colour images.
Auto Iris Control
The camera should provide iris control compatible with
the proposed lens.
Video S/N
Not less than 48dB at 2.5 lux sensor illumination.
AGC
Automatic with manual override
Focus (if applicable)
Automatic with manual override.
10
3.3
Zoom Lens
The proposed lens for use at any particular location shall be suitable for providing
images of the area and targets as defined in the groups Operational Requirement.
The zoom range and focal length (camera dependent), of each lens shall meet the
Operational Requirement and taking into account the area plan and the defined image
content.
The lens shall be a high-resolution type with high transmission efficiency suitable for
external daylight and low-light conditions.
The lens shall be fully compatible with the proposed camera.
The specifications for a motorised zoom lens are listed below.
Minimum f-stop
F1.4 or better with low ramping over zoom range.
Iris
Automatic and remote manual iris control.
Neutral density spot filter.
Maximum Aperture
F1.4 ~360
Focus
Motorised with pre-sets
Zoom
Motorised with pre-sets.
Speed <5 seconds for lens up to10X
<10 seconds for lens up to 20X
The lens shall be of a high quality, with particular emphasis placed on the aperture of
the lens for low-light operation and the quality of the electromechanical assembly in
terms of operation and expected lifetime reliability.
Camera/lens combinations utilising Auto-focus should provide fast tracking of objects
and manual override of Auto-focus should be possible.
3.4
Environmental Camera housing
The housing shall be designed to IP65 protection and should provide climatic and
mechanical protection of the camera, lens and ancillary equipment and cables. It should
not obstruct the field of view of the camera. A wiper is required with remote
operation. Washer units are not generally required.
A heater with automatic thermal switching for optimum climatic control is required.
11
3.5
Infrared Lighting
It is recommended that a survey be carried out at each location to identify areas that
may benefit from the use of infrared lighting.
Areas that can benefit from infrared lighting are those adjacent to open spaces without
public lighting and along waterways.
When Infrared lighting is considered a requirement, it is recommended a wide-angle
flood lamp and a narrow beam spot lamp, selected to provide sufficient illumination
over the area is provided. The power and type of the lamps employed should be
suitable to meet the Operational Requirement.
3.6
Pan and Tilt Unit
Dependent on the camera selected for use at a specific location, the pan & tilt units
employed shall be a heavy-duty variable speed type, with high quality bearings, motor
control and pre-set potentiometers, capable of long term use.
The arc of travel of the platform should be adjustable within specified limits pre-set for
each camera location.
The pan and tilt unit should be capable of fast, smooth and precise movement with
minimal lag or overshoot.
The un-powered holding torque should be sufficient to hold a fully fitted camera
platform, complete with dual IR lamps (if required), in any position without slippage
when subjected to wind speeds of up to 60 mph.
The motor and telemetry control shall provide variable speed movement of the camera
platform with a pan speed from approximately 6° to 50° per second and a tilt speed of
approximately 12° per second. Units providing a wider range then these figures are
acceptable provided that the unit is capable of supporting the camera assembly without
undue wear and strain on the unit.
3.7
CE Compliance
The camera housing assembly, complete with associated components and wiring must
bear the CE mark.
CE certification of individual component items is not sufficient.
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PART 4 - TRANSMISSION
4.1
Transmission methods
The system proposed for transmission of video signals and telemetry should be based
preferably on fibre optic transmission system installed in underground ducting or routed
via premises where way-leaves have been obtained. Copper or coaxial transmission of
base-band video is to be avoided due to risk of eavesdropping and the inherent loss of
image quality associated with these systems.
Microwave radio transmission may be utilised dependent on regulatory permission, if it
is found that a cabled system is not feasible. The Contractor will be responsible for
acquiring any licence necessary on behalf of the Community-based Group. Licence fees
may be applicable.
Digital transmission over secure broadband systems capable of providing image quality
levels meeting the objectives of the Operational Requirement are acceptable provided
that real-time monitoring of an activity can be undertaken.
On going costs for the provision of cable or duct services attributable to maintenance,
licensing and rental charges should be identified and detailed by the Contractor.
The system of transmission, especially microwave links should provide a certain level of
security against unauthorised monitoring and interference of signals.
The Contractor is required to set out and describe the transmission system plan.
Guarantees are required that the monitoring centre will be provided with images
displaying a high level of signal quality in terms of signal level, interference, noise,
bandwidth or image quality and that a high level of link resilience shall be provided.
The transmission system should be resilient to all weather conditions frequently
experienced in the locality.
Radio links should be operated within their specified licensing conditions and distances.
Telemetry signalling should be integrated into the video transmission equipment and
transmitted over the same medium at a rate not less then 9600bps and provide
terminated connections for control via a standard data interface (e.g. RS232, RS422,
RS485). Systems employing FSK telemetry shall have the facility to transmit the FSK
signals over the transmission medium.
13
4.2 Specifications relating to Coaxial, Fibre-optic and
Microwave transmission.
Video Bandwidth
Not less then 5.6 MHz
Video Signal Quality
Less then 5% differential gain
Less then 5% differential phase
Video Signal to Noise
Not less then 46dB
Video termination
75O terminated BNC input/outputs
PAL composite video input of 1Vp-p.
4.3
Radio Links
If radio links are to be employed as part of the system the Contractor must obtain a
frequency allocation and licence from the Commission for Communications Regulation
(ComReg), Abbey Court, Irish Life Centre, Lower Abbey Street, Dublin1.
(Web: www.comreg.ie)
The Contractor shall be responsible for the surveying, installation and commissioning of
any radio link and site.
The Contractor shall be responsible for ensuring compliance with all Licence conditions
and safety regulations.
14
PART 5 - CAMERA SITE - EQUIPMENT AND INSTALLATIONS
5.1
General
The following specifications cover the general requirements of items and services
provided at each camera site.
Plans showing the location of cameras, equipment and proposed signal routes and types
are to be supplied.
5.2
Outdoor Equipment Cabinet
Outdoor equipment cabinets must conform to IP65 for environmental protection and
electrical safety. Cabinets fitted in secure locations (not easily accessible to the general
public) should be fitted with a standard cabinet lock. Roadside cabinets should be
secured with anti tamper fixings in addition to the standard cabinet lock.
5.3
Camera Mounting Brackets
It is recommended that cameras be placed at a height of 7 metres above ground.
A heavy-duty mounting bracket is required, specifically and individually designed or
selected to support the camera assembly on each structure or premises proposed and
capable of easily and safely supporting the proposed camera assembly.
High quality rust proof materials shall be used in the construction of the brackets,
including fixings, bands, nuts, bolts and screws.
5.4
Camera Column (pole)
The camera and associated equipment at each location will determine the choice of
camera column or pole required.
It is recommended that the standard column provide a camera platform height of 7
metres, however, under certain circumstances, a greater or lesser height may be more
appropriate. Situations effecting the height of the column are radio “line of sight”
issues, camera security considerations or obstacles preventing the camera from viewing
a particular scene.
The camera poles shall be constructed of galvanised tubular steel in one single column
designed to provide a rigid and stable platform for the camera and any additional items
such as microwave radio links or equipment. Lattice or tilt-over types are not
acceptable.
15
The column shall safely house any transmission/telemetry equipment, electrical mains
power supplies and any other items required to be placed within it. An access hatch
suitable for installation and service requirements shall be provided. A secure and
lockable cover shall be provided.
Planning requirements may influence the type of column or pole to be utilised at any
location, it is therefore recommended that any specific requirements are established at
an early stage with the planning authority.
5.5
Camera/Equipment location
The location of cameras and ancillary equipment and cabling in any area and on
buildings or structures shall comply with planning requirements and way-leave
agreements obtained by the Group.
5.6 CCTV Signs
Signs of an appropriate size should be placed so that the public is made aware they are
entering an area where CCTV cameras are in operation. The signs should clearly show
that CCTV cameras are in operation and identify the organisation legally responsible
for the system.
5.7
Electrical Mains Supply
The Contractor shall co-ordinate the provision of electrical mains supplies.
The ESB publication “National Code of Practice for Customer Interface. 3rd Edition
2002” provides a single interpretation of ESB requirements. This document also covers
the electrical supply requirements for CCTV camera installations.
Power supplies for cameras and links will be obtained from the electricity supply
provider; this will normally be a single-phase 23OV 50Hz AC mains supply.
The ESB will require applications for electrical supply from the Community-based
Group and satisfactory completion certificates issued by the electrical contractor prior
to supply being provided at each site. The ESB will normally issue specific
requirements following inspection of each of the camera sites.
The installation of the electrical works at each camera site and the consumer unit must
meet all ESB and ETCI specifications.
The installation of the electrical supply from an agreed supply point and the fitting of
consumer units and earth rods will be the responsibility of the Contractor.
16
PART 6 - MONITORING CONTROL CENTRE
6.1
Control Centre
The design of the system will provide control of the CCTV system in premises
provided by the Community-based Groups.
6.2
Monitoring Facilities
As monitoring facilities will vary due to the size and nature of any scheme the following
common requirements shall be taken into account in the provision of facilities.
The area selected to view the monitors and operate the equipment will be suitable for
limiting access only to those responsible for its operation and management and others
with legitimate or sufficient reasons for entry. The area should be capable of being
secured against unauthorised entry. Viewing of video monitors should not be possible
from positions outside this area. Window blinds shall be used to prevent viewing of
monitors from outside the building. Procedures and facilities should be put in place to
ensure protection against unauthorised access to the area.
All monitoring equipment shall meet relevant safety requirements for electrical
equipment and installations and be operated within these requirements.
The monitoring of the CCTV images shall be carried out having due regard to viewing
ergonomics, health and safety and comfort of the CCTV operators. Issues such as
viewing angles and distance, lighting / environmental conditions and staff facilities
should be satisfactorily met.
Suitable ventilation shall be provided to remove heat generated by the CCTV
equipment and to maintain good environmental conditions for the operators and
equipment. The main areas of heat generation will be from video and computer
monitors, video recorders and fibre-optic termination equipment. The capacity of the
ventilation system should take into account the quantity and power consumption of the
equipment to be installed.
Lighting should be provided which aids the viewing of video monitors and which also
provides effective light for report writing. The control desk should provide adequate
space for CCTV control equipment, radio or telephone equipment, writing space and
storage area for log books etc.
The video monitors should be positioned so as to prevent light from windows causing
reflections on the screens and from shining directly into the operators’ eyes.
The size, positioning and number of monitors in a control room will have an effect on
the performance of the CCTV operator. Consideration of viewing and operator
requirements should be a priority in the design of the control room.
17
The size of the monitor will depend on the level of picture detail and text displayed, the
distance of the monitor from the operator and the nature of visual tasks.
High-resolution monitors are recommended for these tasks with a horizontal line
resolution of at least 650 lines of resolution for 14” to 17” monitors and 550 lines of
resolution for monitors of 19” to 21”. LCD and Computer video monitors should
display a minimum of 1024 by 768 pixels and provide a wide viewing angle in the
horizontal and vertical directions.
The monitors may form part of a bank of monitors and should be designed to take into
account heat dissipation and electrical/electromagnetic isolation.
Power supplies for the CCTV control installation shall meet electrical wiring standards
and shall be adequate for all equipment proposed.
6.3
Secure Tape and Media Storage Cabinets
A secure lockable cabinet to facilitate 31-days storage of tapes to be secured on the
premises is required. This cabinet should be designed in such a way that those
responsible for storing and removing tapes can easily identify each designated location
slot and tape. Some additional space should be allocated for the storing of spare tapes
to replace those removed for evidential purposes or replacement of faulty tapes.
A second lockable cabinet for the storage of tapes removed for evidential purposes
should also be provided to prevent accidental re-recording.
Where Digital recording systems are in use the storage requirements will be sufficient
to provide secure storage of media been held off the system up to the 31-day storage
requirement and for media retained as evidence.
6.4
System Management Functions
Depending on the nature of each CCTV scheme, combinations of equipment offering a
range of functions will be proposed by vendors. In order to clearly define the properties
and functions required of any system as a whole, the following requirements are to be
stipulated.
The system shall provide management facilities in the form of restricted user access.
The following basic management facilities shall be provided by the system.
Manufacturers may well refer to a facility or feature by different names, however, the
basic requirements are as listed below.
18
User level set-up
Supervisor options and operator options set-up.
Camera home positions
A facility to program each camera a home position.
Privacy zones
A facility to program privacy zones per camera. The system is required to
allow the programming of specific areas viewed by the camera as a privacy
zone. This area when defined, will be viewable under wide angle viewing of
the scene, however if an operator attempts to zoom in on the specific area,
the image is required to distort, blackout or auto-pan away from the area.
Camera set-up
Camera on-screen displays and remote camera set-up and maintenance
should be provided.
System functions
Privacy zones
Home position, Timed patrolling
Alarm recording
Operator management and passwords
Operator Functions
Camera selection with switched viewing on spot monitor.
Camera Pan & Tilt
Lens Zoom, Focus, Iris Auto and Manual
Lighting On/Off/Auto
Washer/Wiper
Pre-set positioning and patrols
The camera control system either in the form of a keyboard/joystick or graphical user
interface will provide the operator with control of the camera functions and functions
of the multiplexer/matrix system including any proprietary functions offered to enhance
system performance.
Each operators camera controller will interface to the video multiplexer/matrix or
digital recording system, enabling a selected camera to be viewed on a spot monitor
and recorded on an event recorder as required.
6.5
Recording /Playback
Proposals employing either Analogue or Digital based recording systems are
acceptable.
The recording rate for each camera shall not be less than one (1) frame per second.
19
It is recommended in the case of analogue tape recording, that the recording mode in
use will not more then the 12-hour mode setting.
A suitable number of recorders to achieve the above recording rate with the specified
number of cameras shall be provided.
One video recorder for real-time event recording shall be provided. Or in the case of
digital recording, playback of the operators spot monitor at full resolution, at a high
recording rate is required.
The system is required to provide a playback facility to allow reviewing of recordings.
It is recommended that the playback area is located away from the monitoring area to
facilitate in-private viewing of recordings.
The system should provide a suitable connection point to provide evidential copying of
images to tape or the connection of a printer for evidential purposes. Digital recorders
should preferably provide a PAL composite and/or y/c output for copying purposes
Alternatively, a copy facility should be provided such as CD-ROM, DVD or filetransfer via standard system interfaces. Playback and interface software, whether of a
proprietary nature or not, should be provided as part of the system.
In the case of analogue recording, high quality S-VHS SE180 tapes shall be used to
ensure highest quality recording.
It is recommended that videotapes be replaced after 12 recording cycles.
6.6
On-screen Text Display
A character generator providing burnt-in on-screen camera identification and time/date
information shall form part of the system. The following information shall be imposed
on each camera image and recorded: Camera identification number or title
Time and Date
Optional: Location (scene viewed, street or area name)
A feature to have the named location change according to the general direction the
camera is currently viewing is optional.
6.7
Video Matrix Switching
Where it is envisaged that a matrix function will be required to provide various
functions and to facilitate event recording, playback etc. The switch shall provide
sufficient capacity to facilitate all video-switching requirements proposed. The system
should allow for an additional percentage of capacity initially and should be supplied in
a configuration that allows economical expansion of the system, should this arise.
20
6.8
Video Multiplexing
Multiplex or time-lapse recording equipment shall be installed with the capacity to
record each camera in the system at a rate of not less then 1 frame per second per
camera.
The multiplex or time-lapse recording systems shall provide image stabilisation systems
to achieve a high degree of image quality.
Duplex operation of the recording equipment to enable simultaneous recording and
playback shall be provided. Larger systems shall provide dedicated playback facilities.
To achieve a minimum recording rate of 1 frame per second per camera over the
recommended 12-hour period with SE-180 videocassettes, care should be taken in the
number and selection of appropriate multiplexers and recorders.
The Contractor shall describe the multiplexer and recording system proposed.
Features
Activity detector.
Time base correction.
Alarms.
Record Field Rate
50 fields per second.
Video In/Out
1 Vp-p 75Ω BNC terminated.
Duplex Operation
The multiplexer should allow the operator to playback a
recorded tape without disrupting the recording process.
Television System
625 line 50 Hz PAL CCIR
6.9
Video Monitors
Video System
625 line CCIR PAL
Video Inputs
1 Vp-p 75Ω BNC with loop-through and 75Ω
termination switch.
Chroma, Brightness, Contrast.
Controls
Display
Horizontal Resolution
CRT
35cm (14”) to 44cm (17”) - Better then 650 lines
53cm (21”) - Better then 550 lines
LCD monitor
1024 by 768 pixels
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6.10 S-VHS Time lapse recording
Analogue systems shall use S-VHS time-lapse recording systems. Multiplexed and live
event recording shall be operated in the S-VHS mode.
Tape Format
S-VHS.
Television System
625 line, 50 field PAL Colour signal.
Recording Modes
Time-lapse
S-VHS 12-hour time-lapse recording or better in terms of
recorded image quality and required camera recording
rate (One image per camera per second).
Event recording
S-VHS 3-hour mode.
Horizontal Resolution
400 lines or better.
Signal to Noise Ratio
Video : Better than 40 dB
Video Inputs/Outputs
75 Ohm unbalanced 1V peak to peak.
BNC Composite video input / output
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6.11 Digital Recording
Digital recording systems are required to meet the following requirements.
Stored Image Quality
Picture quality and resolution should be equivalent to or
exceeding that of S-VHS 12-hour time-lapse recording.
Recording rate
Not less then 1 image per camera per second for each
camera in the system.
Storage medium
Internal buffered store with archival system maintained
external to the system.
Monitoring
The system should provide multiple screen and single screen
viewing of camera inputs. A spot monitor video output
should be provided. The image quality of the spot monitor
output should be high quality, live 25 frames per second
video image.
Media Copy Output
It is preferable that a PAL composite or y/c video output
from the system suitable for transferring selected digital
images (video and stills) to other formats is provided. The
transferred image should show the full screen image of the
originally recorded picture image. Alternatively, a copy
facility should be provided such as CD-ROM, DVD or filetransfer via standard system interfaces. Playback and
interface software, whether of a proprietary nature or not,
should be provided as part of the system.
Playback/Search
The recorder should allow duplex operation. The system
shall be capable of search and playback of recorded images
while maintaining full recording of cameras.
Controls
Record, Play, Fast/Slow Forward and Rewind, Pause.
Search Facilities
By Time/Date and camera number of both internal buffer
storage and archived recordings.
Archive
The archival system and procedures should provide storage
of all images recorded by the system for a period of 31 days
and for destruction of images older than the specified
number of days unless required for crime investigation and
evidential purposes by An Garda Síochána.
Media/Format
The archival media, format and image capacity should be
described and details provided.
Authentication, Encryption and compression systems should
be described and details provided.
Facilities required for viewing archival media, without access
to the Monitoring Site equipment and facilities, should be
described.
23
PART 7 - SERVICES
7.1 Warranty
The warranty period should be stated and should cover a period of not less than twelve
months from commissioning and acceptance of the system. A detailed general
maintenance plan for the CCTV system is to be included in the proposal. During the
warranty period, such works as required by to maintain the system in full order are to
be carried out on a regular basis as detailed in the proposal. During the warranty
period, malfunctions or defective works forming part of the installation will be the
responsibility of the Contractor to repair, replace or to carry out such works as
required to maintain full functionality of the system. Maintenance during the warranty
period is to be carried out on a regular basis as detailed in the proposal.
7.2 Maintenance Contract
It is recommended that a maintenance contract be put in place to ensure the system is
maintained in full working order. The contract should include the provision of a
regular maintenance schedule and maintenance callout procedure with suitable response
times.
The Contractor will be required to hold a supply of recommended spare parts for
maintenance purposes.
The proposed maintenance contract and recommended spare parts list shall be
submitted with the proposal.
7.3 Maintenance / Upgrading Issues
The overall Tender price shall cover any software upgrades or software-configuration
changes that may be required during the warranty period following commissioning.
7.4
Operator Equipment Training
All personnel employed as operators or supervisors shall receive training in the use of
the equipment. Operator training shall be provided by the Contractor and will provide
the participant with a thorough working knowledge of the system.
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