CctvCameras
From Scratchpad
CctvTemp
[edit] CCTV stops crime in Natal
[edit] Build pan, tilt, Zoom system with RS485
["RS485"]. RS485 under ElecTronics to control stepper motor manipulating camera on roof. Use InfraRedLeds to provide nightvision at over 300m in pitch black darkness between 880 and 940nm.
[edit] Spectral response and CCD sizes
The larger the CCD sensor the better the spectral response or the better image resolution is achieved. 1/2 CCD coupled with an Infra-red laser can detect motion at 800m. 1/3 provides a good trade-off between cost and performance. 1/4inch, 1/3 and 1/2inch are sizes used for night vision. The lux value must be at least 0.01lux for long distance vision.
[edit] Astronomy cameras for CCTV
* South African distributor of http://www.wateccameras.com: Scientific Alert 011 476 5718 * 0.003lux camera * 0.08lux camera * See AstronomyCameras for further info
[edit] Spectral response limits
0.003Lux from http://www.wateccameras.com and http://www.supercircuits.com is the limit in lux sensitivity for surveillance purposes. The values higher than this are used in astronomy (0.0001lux) and can't be used with moving objects since it smears the picture. http://www.wateccameras.com and http://www.supercircuits.com are the preferred suppliers of high sensitive lux cameras.
[edit] pulnix
http://www.pulnix.com/Defense/Defense1.htm
Pulnix has UltraViolet sensitive cameras.
[edit] Nightvision
Nightvision for CCD are achieved in the 820-880nm(semi-covert) and 940nm(completely covert) pectrum. A cluster of high power InfraRedLeds(820nm) will glow like red dragon eyes. For street surveillance 940nm must be used which is completely invisable to the human eye. The diodes are more expensive and the spectral response of the CCD must sensitive in the 940nm region. To prevent headlights from blinding the camera a IR filter lens is attached. Discriminating between a human walking down the street and a car driving past is possible. See http://www.zoneminder.com wiki for details on this.
http://www.baxall.com sells a camera with an A/D converter on every pixel of the CCD sensor. The camera is usually used to attenuate sharp light overloading the CCD sensor. http://www.reditron.co.za will be able to provide more info on the Baxall range. http://www.axis.com Ethernet camera's CCD sensor are not suitable for nightvision applications. A high end mini-itx connected to a KMC-4400r or Pico capture card should be used and the mini-itx Ethernet port connected to the network. http://ffmpeg.mplayerhq.hu are used by ZoneMinder to stream Jpeg images over the network. In this way an Axis ethernet camera functionality is simulated. For a high current(2A, 12v) long range IR camera like the E-558(eaglecctv) use a standard PC power supply. Bridge the Green and Black contacts on the ATX connector to power it up.
[edit] CCD sensors
[edit] 1/4 , 1/3, 1/2 inch Ccd's
In the days of vcr's we all used to use wither vhs (240 tvl colour) or svhs (supossidly >400tvl) and cameras were either med res (380 tvl b/w/330 colour) or high res (570 tvl b/w 480 tvl colour). Now as you could only resolve 240 on vhs why use high res cameras? Well you do end up with a slightly sharper image from high res kit even though your only recording the same actual number of pixels, i assume its to do withthe way the camera makes 380 tvl source into a 625 tvl transmission but i dont know. I would say always go for high res where possible (on the cam front)
Note on format sizes 1/4 1/3 and 1/2 inch ccd's all have (or can have) the same number of pixels. As most cctv is made from camcorder chips we tend to follow that industry, thats why the really specilist cctv are so much money (1/2 frame transfers etc). Even though a 1/4" can produce the same number of pixels a 1/2" chip can it needs a lot more light or gain to be able to do this. This is why cheapo cams have leds on them as they use 1/4 pickups and through their own light rather than 1/2 which can use clear starlight. Id go with a 1/3 as its a good balance between cost and low light performance. But if you have the light it matters little. Plus the smaller factors need cheaper lenses so you can save there.
[edit] Protecting the CCTV camera against sabotage
PIR detectors are protected from having the heat sensing unit spray painted with black paint by using a short range Ultra-Sonic detector to detect any attempt as masking the PIR. See ElecTronics. It is known in the trade as PIR anti-masking. Clamp such an Ultra-Sonic detector against the camera to determine if a thief spray paints the camera. This is especially useful if the camera is not in motion detection mode.
[edit] Via Mini-itx and megapixel-camera
from http://robots.net/article/2153.htmlBR
* http://www.c-o-n-e.org/acone/software.html * http://www.c-o-n-e.org/acone/hardware.html Pictures of thermal regulated camera box.
[edit] Commercial DVR
* $200 http://www.gadspot.com/product_info.php?&products_id=84 * $4 VGA converter http://www.gadspot.com/product_info.php?products_id=100&osCsid=bcda1909ab55e091277b97685723b340
[edit] Build own Ethernet cameras
Build a circuit based on CircuitCellar June 2007 issue of video analogue to digital conversion using ARM processor and H-V line syncroniser seperator. Using an ASIC ciruit the digital data interfaces with an embedded ethernet controler which in turn interfaces with a switch. The switch connects to the VDSL2+ DsLam modem for video surveillance network.
[edit] Lenses
LENSES FOR CAMERAS $59
* http://store.yahoo.com/discountsonline/min35afzooml.html
ELECTRONIC HEARING OF GUNSHOT.
* http://cbs2chicago.com/illinois/IL--ElectronicEars-in/resources_news_html
Nightvision goggles for R1000
* http://www.opticsplanet.net/nightvision.html
Video surveillance specialists
* http://www.activesolutions.com/ * http://www.globalcomputer.com/applications/searchtools/search.asp?mnf=509&cat=35
* OGG THEORA
Elphel Model 333 A Linux-based network camera that uses the Ogg Theora decoder, implemented on an FPGA in open source code. Ogg Theora is said to allow, for the first time, both a low bitrate and high-resolution, high-framerate video. details. http://linuxdevices.com/articles/AT3888835064.html http://www.elphel.com/3fhlo/samples/333_samples/
MPEG4 linux boards from the aviosys website
* http://www.vitecmm.com/product.php?id=2
Video streaming
* www.icecast.org * www.asterix.org? spelt right?
[edit] Other notes
[edit] External links
* ThermalImagingCameras * SerialCameras * http://www.euroshoponline.co.za/product_page.aspx?cat=4893&pid=3031 Quad processors with motion detection * http://www.supercircuits.com * http://www.cctvdepot.com Ether camera * http://www.ccdcameraweb.com/ * http://www.cmucam.org/ 115kbs Embedded serial camera for RoboTics * http://www.cmucam.org/wiki/Projects SEE Security projects with this cam * Mpeg4Compression - Look for stretch.com Embedded IP camera design that converts analogue to digital. * http://svconline.com Sound and Video journal See Rs485Post104 * http://www3.elphel.com/en/products FPGA network cameras * http://www.quasarelectronics.com/cmos_cameras.htm * http://cctvpro.co.za/?gclid=CJ6q4vbuxIwCFSdPEgod7U3hbA * http://www.securitywarehouse.co.za * http://www.extremecctv.com/product_detail.php?producttype_id=&page=1&product_id=189 * http://www.eaglecctv.co.za * http://www.reditron.co.za * http://www.roithner-lasers.com * http://en.wikipedia.org/wiki/Camera * http://www.liquidcctv.com/CCTV-Tools/Lens-Calculator.aspx * http://www.midafricam.co.za/www/ * http://www.camerapedia.org/wiki/Main_Page * http://www.doktorjon.co.uk/whatsnew1.html * Featuring Extreme’s US Patented UF500 IR illuminators, * http://yro.slashdot.org/yro/07/05/01/177254.shtml * http://www.infowars.net/articles/april2007/270407lip_reading.htm * http://news.bbc.co.uk/1/hi/uk/6108496.stm * http://www.dailymail.co.uk/pages/live/articles/news/news.html?in_article_id=405477&in_page_id=1770 * http://infowars.net/articles/january2007/310107xraycams.htm
[edit] links2
{{{
NIGHTVISION SCOPES www.russianoptics.com www.bernhardagencies.co.za =========== IR floodlights http://www.amasci.com/amateur/irgoggl.html http://www.derwentcctv.com/pdfs/SAFETY.PDF ============= Nigtvision NTSC LCD 10cm monitor for nightvision surveillance http://www.earthlcd.com/MTR-EVUE-4BW.htm =============== MICROVIEwer to view video from CCd CAMERA AGAINST EYe. http://www.maxmax.com/aMicroViewer.htm http://www.action-electronics.com/ccd.htm#Bw http://www.derwentcctv.com/home.asp http://www.startechoutlet.com/product_338_detailed.htm ================ INFRARED FLOODLIGHTS high power LEDS 4watt. Notice the difference in viewing angles 30/60/90 degrees. http://www.roithner-laser.com/All_Datasheets/LEDs/LED735-66-60.pdf http://www.roithner-laser.com/LED_HP_single_chip.html ============ INFRARED 950nm http://www.homespy.com/camerawithcase.htm
}}}
[edit] WEBCAMS
{{{
========================
Samsung 721AP
Het INFRA-rooi filter voor wat headlights uitskakel.
R3610,00
4-50mm
========================
http://www.baxall.com/distributors.asp?country_code=4
SOUTH AFRICA
Company
Reditron (Pty) Ltd
Address
PO Box 190, Wendywood, Sandton, 2144, South Africa
Telephone
011 887 1546
Email
johnl@reditron.co.za
Contact
John Loftus
PROJECT management:
Jacques Bester
===================
SA CAMERA distributors
http://www.sacamera.co.za/
http://www.cctvtoolbox.co.za/display_product_2317.htm
http://www.comx.co.za/index.html?camera/index.html
http://www.amisnap.co.za/AmiCam.htm
www.matco
RG - 59 coax cable or equivalent
RG59 75 OHM COAX 6MM, used with the matco video camera system
Tel: +27(0)11 444 2299 from
www.webb.co.za
========================
LENSES FOR CAMERAS $59
http://store.yahoo.com/discountsonline/min35afzooml.html
================
ELECTRONIC HEARING OF GUNSHOT.
http://cbs2chicago.com/illinois/IL--ElectronicEars-in/resources_news_html
================
Nightvision goggles for R1000
http://www.opticsplanet.net/nightvision.html
=============
Video surveillance specialists
http://www.activesolutions.com/
=============
http://www.globalcomputer.com/applications/searchtools/search.asp?mnf=509&cat=35
===========
OGG THEORA
Elphel Model 333 A Linux-based network camera that uses the Ogg Theora decoder, implemented on an FPGA in open source code. Ogg Theora is said to allow, for the first time, both a low bitrate and high-resolution, high-framerate video. details.
http://linuxdevices.com/articles/AT3888835064.html
http://www.elphel.com/3fhlo/samples/333_samples/
===========
MPEG4 linux boards
from the aviosys website
http://www.vitecmm.com/product.php?id=2
============
Video streaming
www.icecast.org
www.asterix.org? spelt right?
============
Video surveillance consultant
http://www.trimediavideo.com
http://www.trendnet.com/products/TV-IP300.htm
==============
http://securitysolutions.com/mag/security_cctv_15/index.html
==============
http://www.webcamproshop.com/product/main.asp?pro_id=125
===============
Infrared illuminator 25meters
http://www.spymaster.com/coinilpn.html
===============
LINUX WEBCAM TO USE WITH LOCUSTWORLD
Get the L'espion for approx 30 GBP - tiny usb webcam, stv680 chipset
and doesn't crash during extended use.
http://www.firebox.com
http://cvs.locustworld.com:8088/locustworld/wiki?p=WebCams
http://www.applelinks.com/mooresviews/lespion2.shtml
================
webcam cookbook
http://www.sdots.com/bike/
http://www.msagentsoftware.com/purchase/purchase1.htm
=======================
Toshiba network camera
http://linuxdevices.com/articles/AT7988703929.html
============
WEBCAM motion detection $49 , works over ethernet
http://www.melioris.com/
http://www.cswing.com/
=======================
DOES INTERNATIONAL SHIPPING FOR PHILLIPS
http://www.shopgenie.co.uk/UK_listing/gen_1/J000060308.html
http://www.savastore.com/basket/default.asp
=================
PHilips TOUcam proII webcam drivers
http://www.pc-cameras.philips.com/manuals.html
http://www.driverscollection.com/?H=ToUcam%20Pro%20(PCVC740K)&By=Philips
http://www.smcc.demon.nl/webcam/
==================
Philips webcam adaptors for lenses astronomy
Scopetronix does international shipping
Philips PCVC840K - ToUcam Pro II
http://www.scopetronix.com/webcam.htm
Local Order Line: (239) 945-6763 - US Toll Free (866) 458-7658
$79 for economy shipping federal express
===============
How To Build Pc Based Surveillance
www.palsol.com/19/how-to-build-pc-based-surveillance-system.html
==========================
http://www.ozspy.com.au/PC/multi-guard.asp
http://www.pcresource.co.th/html/product/grandtech%20product/Grand%20X-Guard.htm
=======================
==================
International shipping Linksys wrt54g
Has $40 video capture card
http://www.ramelectronics.net/html/wireless-avw-1000.html
=====================
DOES INTERNATIONAL SHIPPING
http://www.telescopes-astronomy.com.au/telescopes095.htm
61+ 8 8381 3188
EMAIL: telescopes@bigpond.com
POSTAL ADDRESS: Telescopes and Astronomy
PO BOX 292
OHALLORAN HILL SA 5158
AUSTRALIA
http://www.smcc.demon.nl/webcam/release.html#pwc
===================
Linux webcam
http://gspy.sourceforge.net/sizechange.html
================
web cams
======================
Video motion detection
http://www.oksolar.com/cctv/video_iq.htm
=======================
www.scopetronics.com
Phillips webcam
STWCC Philips Webcam with Adapter $169.00 ea. 1
Local Order Line: (239) 945-6763
info@scopetronix.com
=============
Philips ToUcam Pro II Webcam Model 840
http://www.pocketscope.com/Store/pToUcam.htm
Toll Free: 877.718.6357
Phone: 770.772.6357
=============
http://www.file.cc/Philips_PCVC720K_ToUcam_XS_Internet_WebCam_B00005AW1T.html
Philips PCVC720K ToUcam XS Internet
=============
==============
www.matco.com
B/W CCD Board camera with regular lens, 1/3" CCD, 430 TV Line, 12VDC/100mA, 0.1 Lux,
Lens 3.6mm/F2.0, 1.27"(W) X 1.27"(L) X 1"(H). It fits into an A-300 mini-box housing.
PAL available (CNL-100-PAL): Add $5.00 each to pricing. A-403-CD-C cable included.
==================
CAMERA 'S --- LOREX
http://www.finalstop.com/pepper/hiddencams2.htm
FOR $60
=======================
===================
DIGITAL VIDEO SURVEILANCE
WWW.MAYSURVEILLANCE.com for R2400,00
==================
CAMERA
http://maysurveillance.com/cameras_observation_surveillance.asp
www.cctvoutlet.com
=======================
=====================
SANYO South Africa (Pty) Ltd.
1st Floor West Wing, D Block, Sandhaven Office Park, Corner Pongola and Kathrine Street, Sandton P.O. Box 928 Wendwood 2144, South Africa
Telephone : 27-11-448-2929
FAX : 27-11-448-2860
video camera surveillance
Tel: +27 11 448-2027
Look for
Sony , sanyo, kodak, polaroid
===================
USB webcams SONY
http://www.framos.de/www.dir/de/produkte/kameras/digop/usb/index_de.html
=====================
USB camera
http://www.exploits.org/v4l/
http://http://www.qbik.ch/usb/devices/index.php
==================
FIREWIRE webcams : $330 -> 2046
http://www.theimagingsource.com/
www.1394imaging.com
==================
MOTION detection webcam linux
http://motion.sourceforge.net/
http://cse.unl.edu/~cluening/gqcam/
Video4Linux
=================
THIS IS MY MAIN CAMERA SUPPLIER
www.matco.com
=====================
Video transmitter with COAX cable
https://id79.securedata.net/matco/pricing.htm
CAMERAS B/W
CNL-100
$45.00
$39.00
==================
WIRELESS WEBCAMS
http://developers.webcamworld.com/templates.html
http://www.aboutdebian.com/webcam.htm
====================
LINUX DRIVERS FOR WEBCAMS LOGITECH
http://qce-ga.sourceforge.net/
http://home.tiscali.dk/tomasgc/labtec/
http://icm532.sf.net/
http://www.ic-media.com/products/view.cfm?product=ICM%2D532B
http://libusb.sourceforge.net/
===================
WEBCAM SIte
http://www.solwise.co.uk/
===================================================================
======================
Them with 2 inches of riging foam insulation to keep the summer heat down
=============
WEBCAMS , FIREWIRE
http://www.jknelectronics.com/dfg1394.htm
http://sourceforge.net/projects/video-2-1394/
http://www.videohelp.com/forum/archive/f19.html
====================
FIREWIRE WEBCAM FOR $330 , LINUX based
http://www.1394imaging.com/products/interfaces/dfg13941/
=====================
CCD WEBCAMS:
Cam SAC-IV, modified webcam used for astronomy
http://homepage.mac.com/tarashnat/astrophoto/ccdwebcam.html
======================
WEBCAM ADAPTOR for astronomical observations
CCD CAMERAS FOR ASTRONOMICAL OBSRv
http://webcaddy.com.au/astro/adapter.htm
http://webcaddy.com.au/astro/M12Cameras.htm
===============
AStronomy magazine ccd camera writeup
http://www.astromag.co.uk/webcam.html
Philips ToUcam Pro
Philips PCVC840K - ToUcam Pro II
SECURITY CAMERA WORLD
http://www.security-camera-world.com/
http://rfdesign.com/mag/radio_field_trials_allsoftware/index.html
====================
QUICKCAM ccd camera's
http://www.pricespy.co.nz/pno_1803.html
=====================
http://www.dvvideo.com/
====================
LINUX VIDEO CARDS ONLY
DarkShadow posted 2003 Nov 12 06:41
This looks like the perfect software for your needs
http://motion.sourceforge.net/
BJ_M posted 2003 Nov 12 09:45
http://nemesis.inodes.org/ (just some general info)
http://www.aver.com/products/security_lx5000.shtml
(these cards ONLY run on
a linux system and are exactly what you are looking for)
================================
======================
OEM maker of FIREWIRE cameras prefered vendor
SOURCEFORGE firewire drivers for linux
http://www.ptgrey.com/products/dragonfly/index.html
http://sourceforge.net/projects/libdc1394/
====================
WEBCAM FIREWIRE
Orange Micro 70HTL00101 iBOT FireWire Web Cam (70HTL00101, 70HTL00101
http://salestores1.com/ormi70ibfiwe.html
===============
FIREWIRE CAMERA SENSORS with rs232
USB CCD CAMERAS, what I was looking for
http://www.framos.de/www.dir/en/start_en.html
=====================================================
yes, the regulations are all about ERP(effective radiated power), not how much power your putting into your feed line. For many services this means that if you are running the maximum power, and add an antenna with more gain, you must drop your power. But for point to point networking in the 2.4ghz ISM(industrial, scientific, medical) band you are are allowed to use directional antenna for point to point communictations, upto i belive 6db gain and still run maximum power. Above that you must drop your power, but the requiered drop is something like 1db less power for every 2db of gain, so it's not to bad. Keep in mind that my numbers are not correct.
But the other thing to consider is that i think most cards dont run the maximum allowed power, so you should be able to use a high gain antenna with any problems.
ALso, keep in mind that the regulation allowing high gain antennas without lower power specifies point to point communications, so that 20db gain yagi ontop of your car might not be legal.
The other thing to remember with 802.11b, is that 802.11b isnt the only thing on the 2.4ghz ism band, and ISM isnt the only thing 2.4ghz is allocated for. There is also amatuer allocation covering the same frequencies, and there has been at least on case of someone having to shutdown an 802.11b network due to interference it was causing. Also always keep in mind
=================================================
Might one of these antenas be mounted in reverse, on a small DSS/primestar style dish to improve reception?
just place the end of the pringles can at the focal point of the dish? i would suspect a significant gain from this,
but then again the whole point of a pringles can antena is to be cheap, how cheap can a person get a dish?
also, what do you suspect the range to be on one of these homebrew antenas? could it span 2
miles to a passive repeater, then two more miles? or would the repeater have to be and active 802.11b access point?
if i were to hack an 802.11b access point to install a pigtail for a homebrew antena, could i install two pigtails for two antenas? and would it be advisable to further hack the accesspoint to boost the signal to 80-90dB?? i believe the FCC limits these 2.4Ghz signals to 100dB, but dont quote me on that.
=====================
Re:a dish? (Score:4, Interesting)
by Phork on Saturday February 16, @10:55PM (#3020614)
(User #74706 Info | http://www.phork.cx)
You could use two antennas, but it is not as simple as connecting the wires, you need to use a 2 to 1 RF transformer meant for 2.4ghz, but there are plenty of these devices made these days because of the proliferation of 2.4ghz devices. I see them advertised in rf design all the time
========================================
yes you have to boot both sides to get maximum range, but these are directional.. so you have to have your laptop in aspecific location and never ever move it. Or, use it as a point to point link like the other 98.765% do.
Basically, if people quit trying voo-doo antenna designs and buy a ARRL handbook and learn a bit about what they are doing they would get a 95% sucess rate. antenna is the least of problems..
here's what you need to do. If your wireless card isnt within 5 feet of the antenna you have to buy super expensive $22.95 a foot hardline and $80.00 connectors for each end. Moral of the story? put your couputer acting like your end of the link in the attic within 5 feet of the antenna, and use Belden 9913 and N connectors. anything else is just a waste of time and power. (RG58 has a 25db loss per 100 foot at 2.5ghz that is 2.5db per foot or you lose 50% of your signal every foot of RG58 wire... so those that use it are wasting their time.) impedance mismatches cause huge problems at 2.5ghz your soup can is NOT a 52Ohm load unless you have everything perfect as to the stub length, position in the can. and position from the back wall of the can. it's easier to modify a old KU band sattelite feedhorn than make a working soupcan. your impedance bump will cause about 2-4DB of loss... another 50% of your signal gone.. (that's both transmit and recieve folks!)
Now, use a nice old primestar dish? Awesome linking.. they are great and deliver approx 30-50DB gain... the best is to use 7foot spun aluminum dishes... but the neighbors whine about those.. (but you get 100-140Db gain)
There;s a reason other than greed as to why the professional antennas are pricey.. do some reasearch and get good at aluminum machineing by hand and you can make commercial quality stuff.
==============================================
First off, at 2.4ghz RG58 loses .25db/ft, not 2.5db/ft.
Second, people have done the Primestar dish thing before [wwc.edu] and report 22db gain with it, not 30-50.
Third, according to the ARRL antenna handbook, the 200" optical receiving antenna known as "Mt. Palomar" has 148db gain. Frankly, I don't think anyone's satellite dish compares to this (or could, at microwave frequencies)
Remember, 100db gain means 10 million watts of effective radiated power for every milliwatt of input power.
Antennas with over 30db of gain simply are not that common.
================================
With the computer in the attic, there is a far better way of doing it, although slightly more expensive. Use an access point (such as LinksysWAP11 / SMC2655W) with power over ethernet, place the AP in a weather proof box, with just the CAT5 connection to it, screw that to your antenna mast (or base if it) and your set. See 1km 802.11b in Egypt [d128.com] for some nice pictures of it.
For cost I guess if your just doing ptp links it is going to cost more, but not that much really, at least here in Australia excluding the cable savings, PoE adaptor, etc, an AP such as the Linksys or SMC can cost less than $450, (mine was $420 cost price) a standard Wireless PCI card will cost at least $300.
http://www.d128.com/wireless/
}}}
