joseph.chen0312
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Everything posted by joseph.chen0312
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Hello I think it maybe is flare or IR bounce to sensor for where installed to closed wall or substance. You could offer some picture at day time for us view reall ambience.
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Hello, Night club is always challenge for any installer or SI for various type of lighting source, i.e. disco light, spot light and etc. And all is in lower lux. If all lighting is mix up you could find out just like abstract painting all bouncing to CCD/CMOS sensor. So as you mentioned, better deploy B/W or adjust OSD in box without IR/ white LED and pick up good lens in F1.2 or lower is best. On site turn all light then you could adjust moderate programe. Finally, I wish you could cope with this job and share all info to us for learn. Cheers
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Hello As I know most IP camera supplier is headach for LP capture for highlight bouncing at night time. Maybe you could consider carry out Vivotek or Axis which released some good stuff in deployed SONY exmore Sensor and P-IRIS lens which is excellent at day and night time.
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Different between SONY,SHARP,PANASONIC and Korea A1 CCD.
joseph.chen0312 replied to etowntrading's topic in Security Cameras
Hello You are post a great thread for that I tell you a story in China they even could remark SHARP or some brand to SONY and call it "CLONE". You know SHARP is more cheaper about USD$3~5 than SONY so they could gain some business who is focus on lower price. But you know who loss the game. -
Hello If I do I will prefer to carry out effio-p for best sensotine in high light and low lux. Pixim is poor in low lus for high noise and over heat with IR lamp.
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Hello Maybe you could request golden key from your supplier
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Geovision
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Need Help -- Old CCTV System Interference Problem
joseph.chen0312 replied to varack's topic in General Digital Discussion
Better you could use UTP to install all and would be fine -
CCTV camera needed for close motion with svideo out
joseph.chen0312 replied to digitalrust's topic in General Digital Discussion
I think for this task, you need sort industrial Camera for this job -
1/2" CS mount wide angle/Fish eye lens query
joseph.chen0312 replied to Basara's topic in General Digital Discussion
Hello There are many brand could offer those such as Spacecom, Fujinon, Tamron. Where are you located? -
Use Balun then to connect DVR so you could link internet via DVR. it would be more cheaper and scability than video encorder
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I think fiber optical is an pocket option for your plan. One of my friend just finished an area monotoring project and he is carried out fiber.( a total of 100 pcs and would scale up in 2nd phase) As for Internet, you could buying fiber interface router. And he has told me better do not use PTZ camera for moniroing traffic, you know when vehicle volume is large whcih is target to aim or just rotating..
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Hello I think maybe Geovision could offer you MP IP camera tp text overlay to POS.
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I agree with Tom's point all Vassel/Yacht is hard to transmit signal in Ocean unless it is close to shore harbour. Satelliate is only way to connect telecom and internet.
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Hello All This is IR control receiver normally, it is located at office or wide space for make IR controller to transmitte signal well.
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Hello I think maybe I could help you but could I know what is happens and where did you bought? And better way give me an full look photo to make sure.
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UL at electric power device, wire and relatives is strickly required for USA regulation. If you can gain official foresinc evidence which is uncerticated UL or fake label, it means you could claim compensation to any where you bought in USA even ebay.
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What to look for when buying ebay budget cameras (max $100)
joseph.chen0312 replied to matt_perth's topic in Security Cameras
Hello All, I hope I did not miss anything. I think this LED is Laser LED not common one. Which is should be careful to install otherwise it would damage EYE. And F1.2 lens is exist but normally you do not have equipment to test, you know many Chinese claim how their specare but you need inspect all detail or ... For Effio's DVR at present some supplier have launched dedicated one, simply say is you could check effio resolution is exceed D1(4CIF). We call effio resolution is WD1. -
Hello Folks, I think all of you missed one key poing is does that hybrid DVR is compatible Dahua camera. You should make sure.
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Transmit CCTV data over 500 metres to viewing station
joseph.chen0312 replied to shravank30's topic in Video Transmission/Control Devices
Yes via Cat5/5e all makes more easy to finished this job -
Yes QVIS has been cosigning Dahua OEM their DVR/NVR but recently I have heared maybe they would leaving from Dahua for some critical issue.
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Other than resolution what effects a camera's image quality?
joseph.chen0312 replied to JacFlasche's topic in Security Cameras
How to say it. Because camera is not only hardware but also software(parameter) program issue. It needs accumlate long time experience to program moderate parameter. Even main board how is logic circus desined and which grade components it deployed and etc. All is factor to impact quality. Now is flooding of myriad brand and products from China, it is reall a challenge to judge which is qualify to standard. -
CCTV camera with IR Array - remotley mounted power supply
joseph.chen0312 replied to matt_perth's topic in Security Cameras
This is Laser Led not common LED light and basically A grade Led life cycle at least is 20K hours. Key point is Laser Led would damage eyes. So be careful disposed it again. -
Back to installing and selling cctv systems
joseph.chen0312 replied to troy6363's topic in Security Cameras
Excellent job for install box camera " title="Applause" /> -
in the light of photo you posted, there are some reason may caused it. One is sun high light bounced to camera so it menas you need to adjust angle. 2nd is intrinsic parametre is out of work in high AGC so it did explosure. Or have you make IR light is turn off, you know if its at wrong trogger IR it will making worst.