Wireless Camera (RF or WiFi)?

[zee]

Hi! First post ko po ito dito, pero several months na rin akong nagbabasa dito.. Heard this site from a friend.

Gusto ko sanang humingi ng advice sa paggawa ng wireless cameras. Kailangan kasi namin para sa design (traffic monitoring system), we need at least 4 wireless cameras (max of 8 ) all of which are connected sa PC for processing. Problem is, hindi ko alam kung ano ang gagamitin naming wireless technology para sa cameras.

Nag rresearch ako regarding this since last month, hindi kasi ako knowledgeable especially sa hardware. Hnggang ngyun hindi ko pa rin alam kung ano ang "best" gamitin lalu na't gagamitin yung video inputs for a computer vision program.

Hingi sana ako ng opinion ninyo mga sir.. Nag-canvass na ako sa may Recto ng RF at Wifi Cameras (approximate lang yung prices nito, hindi ko kasi sinulat kaya nalimutan ko na yung iba. hehe.)

[1] RF - 1.5k for the Camera
         - 2-3k for RF Tx and Rx (meron silang 1.2GHz at 2.4GHz) range is about 50M
         - 4.5k DV-R Card (4 channels, expandable up to 16)

Maximum of 3 wireless cameras daw na try nila na wala gaanong interference, pero hindi pa raw nila na-try na magkaiba yung frequency ng Tx/Rx

Kung 4 Cameras ang ggmtin, ~4k (per unit) X 4pcs = 16k + 4.5k (card) = ~20K Total    

[2] Wifi - 7.5k for the IP Camera
           - ~6k para sa Wifi Module (not really sure kung wireless ethernet bridge ito, o kung ano.)

~13k (per unit) x 4 = ~52K (wtf. wla pang AP)

Checked some websites, nakita ko na may nabibiling mas murang IP camera (4-5k) at wireless ethernet bridge (1.5k), so kung mggwan ng paraan kaya pang ibaba ng hnggang ~6K per unit.


Any input is really appreciated mga Sir, nawawalan na kasi ng pag-asa mga kagrupo ko at gusto ng MAGPAGAWA. Nag-iisa na lang ako ata ako sa amin na eager pa rin gawin yung Hardware. Anyway.
Maraming Salamat sa Pagbabasa at Thank you in Advance!ü

[anthonydp]

hi zee.

yours is a very intelligent post that details your goal and the activities that you already did to reach that goal.
we appreciate posts like yours.

as for your requirement...

if you'll go the IP camera route, you won't be needing DVR video capture cards.  Just install ubuntu and zoneminder on a PC and setup a wireless access point and you are good to go.

i would recommend the following setup:


wificam1 >>
               >>
 wificam2     >>
                     >>         
    .                 >>> wifi router (wireless acccess point) -------- PC (running zoneminder)
    .              >>
    .           >>
 wificamN >>

zoneminder is an open-source software that runs on linux.
you can download zoneminder here: http://www.zoneminder.com/

it is very easy to install and setup and there exists many tutorials for zoneminder:

http://sidrit.wordpress.com/2008/08/04/video-surveillance-system-on-ubuntu-804-with-zoneminder/

http://www.howtoforge.com/video_surveillance_zoneminder_ubuntu

Wifi-CCTV BOM:
PC: 20k
wificam: @3.6k x8 = 28.8k
wifi router: 1.58k
Total = around 50k

But if you'll need video capture cards, you may want to see this:

8-channel card @ 4.5k

http://www.openpinoy.com/shop/step0.php?b_code=B20090327025315&c_code=C20090327042209

and this:

http://www.cdrking.com/local/products/index.php?action=mnu&temp=2&typeno=9711541-337563-687822904-6966115&prod=Surveillance%20%28Surveillance%20Monitoring%20system%29

[zee]

Salamat sa post man!


Sa ngayon mukhang IP camera na nga ang gagamitin namin.. Nabasa ko na rin yung regarding sa zoneminder dati pero hindi ko gaano binigyan ng pansin. Thx sa advice! Try ko nang magdownload nito at ng ubuntu para mgka idea ako sa software.ü


Pero nakalimutan ko sabihin dun sa previous post ko.. Hindi kasi pwdeng hindi kami mag ddesign ng sarili namin na hardware. Dun sa mga naunang grupo, pwde clang gumamit ng kits or modules, pero hindi pwdeng "buo" na yung ggwin. Next question is, posible bang mag design kmi ng sarili naming hardware(IP camera, or Wireless access point)? I know, basura talaga kasi bkit ggwa p kmi ng "nagawa" na. Pero ganun tlga e. Hehe. Approved na kasi ung topic namin, na yung prof din yung nagbigay.

Sa software part baka gumamit ako ng Visual C++ at OpenCV.. By next week mag start n ko mag program.


Salamat ulit sa inputs!

[anthonydp]

i was in the impression that you want to build an at least 4 camera cctv using wifi or analog wireless cameras. 
from what i read now, what you really want is to build a wifi camera or an analog wireless camera from scratch, right?

building a wifi camera:

you may try friendlyarm as it has a built-in camera interface and a USB-Host functionality.  sir Dandy here in electronicslab has a store selling friendlyarm kits. 
Johnarray is also affiliated with sir dandy's store (i think).
the usb-host is for interfacing a usb wifi.  it can run linux thus it supports just about every device that you can use with a linux desktop OS.

[zee]

Magandang balita para sa amin. Hehe. Pumayag yung prof namn na bumili na lang kami ng ip camera since malawak naman yung scope ng software namin. Pero gusto niya na gumamit kami ng solar power for the camera. Kaya case closed na ito. Bagong case naman, "solar power controller para sa ip camera" pero still doing some research.

Nkabili na kami ng ip camera sa cdr-king, Encore model ENVCWI-G1. Try ko na siyang interface sa pc sa ngayun. Madugong research na naman.


Salamat sa tulong sir anthony!ü

[ekajara_josh]

I just want to share this:

Last two weeks may mga research symposium(pagandahan ng thesis and research proposal)...

Bale sa kabilang college(COComp. Stud.) gumawa sila ng ayun nga naka2relate sa ginagawa nyo..

Ang purpose nila is for video caption and snap shots using wireless IP camera na nakaconnect sa helicopter na de-gasolina?basta ung lumilipad eh...wala lang..ang kulit ng thesis nila...
 

[zee]

Hehe. Cool.

Kaya lang approximately 100ft lang range ng ip camera.. Tapos malamang battery powered ung camera, so kung 9volts or AA battery ung ggamit nila approximately mga 30mins to 1hour lang un ttgal..

Sana RF na wireless camera na lang.

[firecrusher]

to ekajara_josh:

Last two weeks may mga research symposium(pagandahan ng thesis and research proposal)...

Bale sa kabilang college(COComp. Stud.) gumawa sila ng ayun nga naka2relate sa ginagawa nyo..

Ang purpose nila is for video caption and snap shots using wireless IP camera na nakaconnect sa helicopter na de-gasolina?basta ung lumilipad eh...wala lang..ang kulit ng thesis nila...

saang school to?

[ekajara_josh]

to firecrusher:

Sa skul nmin....Central Philippine University bkit moh naman natanong?

[anelja]

sir pano poh iset yung steper motor n 5 wires iconect s wireless camera tapoz guz2 nmin kz gmitin s sytem ay vb..panu poh ung coding na ga2mitin kz un kz thesis nmin

[DigitalMind]

sir pano poh iset yung steper motor n 5 wires iconect s wireless camera tapoz guz2 nmin kz gmitin s sytem ay vb..panu poh ung coding na ga2mitin kz un kz thesis nmin

hi! pwede mo ito i-connect ... may two ways for this..

easy and might be dangerous sa pc lalo na kung noobs... the parallel port
* just send the sequence sa 8bit port then you're ready to go. meron stepper motor driver na step direction lang. i think that was L298 and L297 chips. pwede din mag optoisolate para di masira yung parallel port btw.

2nd is use a serial port and maglagay lang nang microcontroller. pwede din ito btw.

google google lang nang sample code, then post mo dito.