Saturday, February 17, 2018

help or support


Dear All 

I will come  back to my blog, if any one need any help or support @  low current systems, please leave a comment or a question here and I will come back to answer,

or if you need to conduct open discussion about low current system,

don't hesitate to ask, 

thanks

Monday, December 11, 2017

Closed Circuit Television System (IP-CCTV)

             System Description

The Closed Circuit Television System (IP CCTV) is intended for security and operational automated visual surveillance .The IP CCTV system shall have the capability for alarm notification, recording video and data for indoor and outdoor areas.

The system shall be based on digital high performance IP cameras which will transmit the digital video images thorough the Converged LAN to be received by the Video Servers which shall manage and control the system. Through the LAN, authorized persons can access the system to view the images of specific camera/s, control it and retrieve recorded material from many different points through the building. Persons with suitable authority can control and program the system through the LAN from any location inside the building. Video Signals coming from cameras shall be routed via the data switches to which cameras are connected to the converged LAN backbone.

CCTV Cameras Coverage Areas:
As a general rule each installed CCTV camera is required to achieve one of the following typesof the camera views according to its installed location:
·         Identification View:
It is the ability to identify any unknown individual for the first time in a view where his body is displayed on 120% of the monitor screen.

·         Recognition View:
It is the ability to distinguish a known individual from other known individuals in a view where his body is displayed on 50% of the monitor screen.
  
·         Detection View:
It is the ability to detect any moving object/body on the screen and recognize the body in a view where it is displayed on 10% of the monitor screen.

·         Monitoring View:
It is the ability to monitor general activities in a view where anybody is displayed on 5% of the monitorscreen.

                 Fixed Color CCTV cameras will be installed at the following areas:

·         All entries to the establishment (to provide Identification View);
·         All reception and information desks (to provide Recognition view);
·         All lift lobbies at all floors (to provide Recognition View);
·         All ATM areas and public phone areas;
·         All staircases and escalators;
·         All emergency staircase doors on all floors;
·         All entry/exit points to the establishment and parking areas (to provide License Plate View);
·         All loading and offloading areas (to provide Detection View);
·         All vehicle drop off areas (to provide Detection View);
·         Jewellery shops and valuables shops, court lobbies or walkways.

           In addition to above covered areas Fixed and/or PTZ color cameras will be              installed at the following areas:

·         Fixed cameras in car parking areas (PTZ Cameras to be used for Operational requirements);
·         Fixed cameras in lobby areas;
·         Fixed cameras in LPG cylinder areas;
·         Fixed Cameras in Garbage areas;
·         Externally mounted PTZ cameras on the perimeter of the building to cover all exits.
·         Fixed cameras at car park entrances and exits supported vehicle license plate recognition software.

Saturday, December 3, 2016

VIDEO INTERCOM SYSTEM

      Video intercom system shall be used for secured and critical places  which need allowance to enter this area.
The system shall consist of:
·         Master outer panel to be installed out of the entry door
·         Indoor slave unit to be installed inside the restricted area
The master and slave are connected together to achieve the required operation.
System features:
Master outer panel:
·         Speakers – Microphone audio module
·         CCD color camera module
·         LCD display panel and digital keypad
·         Push buttons to fulfill all required intercommunications
Indoor slave panel:
·         Integrated LCD monitor and telephone
·         Instant picture in monitor after call
·         Buttons to release door lock
·         Brightness, color, contrast and volume control

Tuesday, October 25, 2016

Codes and Standards for Telecommunication systems

    -          Fire Alarm System
·           The application shall be according to the (Fire Protection Requirements for buildings)
·           Detailed design shall follow NFPA 72 (National Fire Alarm Code) and/or the BS 5839 latest edition latest edition
·           Fire alarm shall comply with the requirement of the local branch of the general civil defense administration.
·           All Fire Alarm devices and equipment shall be UL listed.

all applicable local building code, safety, environmental and other requirements will be met In addition to the below listed standards :
·           Requirements of the service provider
·           ISO/IEC 11801:2002 - Information technology - Generic cabling for customer premises
·           ANSI/TIA/EIA 568-B - Commercial Building Telecommunications Cabling Standard, with addendums.
·           ANSI/TIA/EIA 569-A - Commercial Building Standard for Telecommunication Pathways and Spaces
·           ANSI/TIA/EIA 598-A - Optical Fiber Cable Color Coding
·           ANSI/TIA/EIA 606 - Administration Standard for the Telecommunications Infrastructure of Commercial Buildings
·           ANSI/TIA/EIA 607 - Commercial Building Grounding and Bonding Requirements for Telecommunications
·           ANSI/TIA/EIA-TSB-67 - Transmission Performance Specifications for Field Testing of Twisted Pair Cabling System
·           EIA/TIA-526-7 “Optical Power Loss Measurements of Installed Single Mode Fiber Cable Plant
·           EIA/TIA-526-14 - Optical Power Loss Measurements of Installed Multimode Fiber Cable Plant
·           TIA/EIA-854 Full Duplex Ethernet Specification for 1000Mbps Operating Over Category 6 Balanced Twisted Pair Cabling.
·           Institute of Electrical & Electronics Engineers Sixteenth Edition
·           IEEE 802.1 - LAN/MAN Bridging and Management.
·           IEEE 802.3 - CSMA/CD Access Methods.
·           IEEE 802.11 -Wireless LAN’s.
·           Building Industry Consulting Service International (BICSI) recommendations.
·           Requirements of Civil Defense
The following codes will also be applied to IP-PBX equipment and characteristics:
·           ISO               International Organization for Standardization
·           ITU               International Telecommunication Union

-          Security Systems
Work shall be performed in accordance with applicable local building code, safety, environmental and other requirements at the commencement of installation. The following list summarizes applicable standards:
·           UL 294, UL 1076, ULC
·           CE
·           FCC – Part 15, Part 68
·           NFPA 70, NEC
·           IEEE, RS 170 variable standard
·           IEEE, NTSC (color camera broadcast)
·           PAL (color camera broadcast, Europe)
·           CCIR (monochrome standard, Europe)
·           Microsoft® Open Database Connectivity (ODBC) interface)
·           ISO Software Coding Standards for C++ and C#
·           RoHS

-          Public Address and Voice Evacuation System
·           BS 5839 Part 8: Code for Practice for the design, installation and servicing of voice alarm system
·           EN 60849: International Standards Sound System for Emergency Purposes.
·           IEC - International Electrical Commission
-        IEC 149              Sockets and Accessories for Electronic   Plug In Devices
-        IEC 268              Sound System Equipment
-        IEC 297              Dimensions of Panels and Racks
-        IEC 574              Audio-Visual, videoand Television            Equipment and System
-        IEC 60849Sound System for Emergency Purposes
·           NFPA 72: Interfacing with Fire alarm system

 

 

Wednesday, October 19, 2016

IP CCTV System


IP CCTV ( Closed Circuit TeleVision )System
IP based Closed Circuit Television System (IP CCTV) shall be used to allow the monitoring of defined areas inside buildings In addition to direct monitoring of video imagery by staff, software applications are available to assist the operators and help reduce operator numbers. Indoor color HD IP CCTV cameras shall be used transmit video images using TCP/IP protocols.Network Video Recorder with intrusion detection and detection analysis be used with a powerful search engine to ensure that images not only are stored for an appropriate amount of time, but events can be utilized also.

 IP CCTV system Components:
-            Network Digital Video Recorders with motion detection system 
-            Indoor and outdoor HD IP Cameras 
-            PTZ IP CCTV color camera system 
-            Color LCD (LED) Monitors Cables and wiring
Bookmark and Share