Stanislav

See VideoCAD 6 software. http://cctvcad.com Download demo, see Help system. Your question is investigated in details. You can model images with different light sources, determine from the Spectral Power Distribution curves and measure in practice the Spectral efficiency of light sources for the different image sensors. See also teaching article "Illumination and camera sensitivity in CCTV" Contact to CCTVCAD Software if you have questions.

Alpine0000, you are right. You have necessary information for your design Camera defence is important too. A lot of things are critical for CCTV design. Some of them are relative, some contradict one another Camera height of 1.5-2.5 meters provides maximal face recognition area but by defence reason the height should be higher. However you can use vandalproof camera, mured, hided, pin-hole cameras..... But pin-hole cameras have low light sensitivity... More field of view provide more covered area, but less recognition area. and so forth. Good design is a compromise. Camera image models on design stage are very helpful for right choice.

Exact sizes are needed for modeling your task with VideoCAD. There can be a lot of variants. Camera locations, heights of installation, quantity, lens parameters, image resolution are critical! To get the best variant you should see on project stage what you will get in result. And think as a intruder.... For example: I can suggest to move cam A and cam E to expand control area to the left and to watch back door from two sides. May be cam E is unnecessary there. It can be moved to the left wall. Cams A and B are not guarded against damage from the left. Cam D should be moved to the lower-right corner. On the corner it will control more wall area and will be guarded by cam A. 4 cameras are preferable for one monitor. You can place 4 image on one square-screen. Or use 3x3=9 cameras or 2 screen with 4 cameras. See image. But it is example only. It is impossible to design CCTV system using only location plan. Download this illustrated article for details http://cctvcad.com/Files/the_principles_of_cctv_design_in_videocad_part1.pdf

New VideoCAD6 version allows to model camera sensitivity parameters and choose optimal ones for existing light condition or choose required illuminators and their positions. The model includes minimum scene illumination, ES, IRE, S/N ratio, AGC, BLC, lens aperture, compression... etc http://cctvcad.com

New VideoCAD version 5.0 was released. Many users' suggestions were taken into account. New teaching articles "The principles of CCTV design in VideoCAD" were published. We look forward to improve our software. Any suggestions and criticisms are welcome. http://cctvcad.com

It is incorrectly to compare Visio with VideoCAD (CCTVCAD). VideoCAD offers a lot of special CCTV tools including 3D modeling, image quality modelling, automatic calculation of view area projections etc. VideoCAD allows to choose the best camera positions, parameters and quantity. Visio is only drawing software. It is better to use VideoCAD along with Visio or other graphics software. Visio (or AutoCAD) is the best for consummation of CCTV project. But VideoCAD is the best at previous stages of CCTV design. I highly recommend the teaching articles "The principles of CCTV design in VideoCAD" for beginning work. We look forward to improve our software and make it easier for mastering. Any questions, suggestions and criticisms are welcome. http://cctvcad.com

It is possible to use VideoCAD together with Visio, AutoCAD, etc. *.bmp, *.jpg, *.jpeg, *.emf, *.wmf, *.dxf, *.dwg files are supported as a background. http://www.securitypark.co.uk/article.asp?articleid=23173 http://cctvcad.com/CCTVCAD-Professional_design_of_CCTV_system.html

Released 4.0 version of VideoCAD. VideoCAD - the program for professional CCTV system designing. Whats' new in VideoCAD 4.0 http://cctvcad.com/Whats_new.html http://www.cctvcad.com

http://www.cctvcad.com

VideoCAD -program for professional CCTV system design. http://www.cctvcad.com