What is DDNS and Why Do I need it?

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DDNS stands for Dynamic Domain Name System.  This is a very-tekkie discussion of DDNS, in more detail than previously presented.
Each website, FTP site, device, and even your cable modem, has an Internet ADDRESS. This address is how the Internet locates nodes, aka computers, or routers, or anything else that might hang on a CAT-V cable [1].
The numbers aren’t *too friendly* however. They’re hard to remember and for the most part, meaningless as far as their significance. Think about it. If your friend says
Did you check out my latest pix on 66.220.149.11??
You’ll be like HUH? But if they instead say
Did you check out my latest pix on Facebook??
THEN you’ll know what they mean right? Well on the INTERNET, FACEBOOK is the domain NAME (at least part of it), and 66.220.149.11 is the Internet address for that name. This might be called the IP Address, or even the WAN address.
So they have to have a system that can TRANSLATE a name into an address,  so when you enter FACEBOOK into your browser, it knows to send you to 66.220.149.11 , and that’s what a DNS or Domain Name Server, does. This is called NAT, or Network Address Translation.
So that’s a little bit of background for you.  Now what about DYNAMIC DNS (DDNS)?
You actually could get a NAME and a FIXED IP ADDRESS [1] for your camera, and never worry about DDNS. But for most of us, that’s impractical. A fixed address is expensive. So instead let’s look at DDNS.
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Your CABLE or other type of provider temporarily assigns an IP address to you. They own a pool of FIXED UP Addresses, which they dole out to their subscribers on a round-robin or other type of sequence. So when you woke up this morning, your IP address could potentially be different than it was when you went to sleep.
In practice they don’t really change that often. If your router hasn’t been off line, its possible to have the same IP Address for weeks, or months. In that scenario, you might consider just using the current IP, not worrying about DDNS, and resign yourself to having to adjust it ever month or two. Or six.
But if you want your Camera to automatically be ADJUSTED to use the new IP address, then that’s where DDNS shines.
Here is how it works.
You sign up for a DDNS service. There are dozens. Some are free, some charge $1-2 a month, others more. One caveat- your selections may be limited by your camera or router, read on..
Next, you need to configure one of your devices to *talk to* your DDNS provider. You can locate DDNS settings in your router, camera, and even on some computers.
Then you configure it to tell your DDNS provider about your IP address. When it changes, it tells the DDNS provider, and it adjusts your NAT (Network Address Translation) so someone who types in tammycam.com ALWAYS finds you, even if your address changed.
For details on settings at both the DDNS provider and your router or camera, you’ll have to consult the associated guides. They’re all different.
But the part to remember is that many devices can only support CERTAIN DDNS providers. You’ll find the list in that guide. Be sure to select one in the list. The other important thing is that you only need ONE device to communicate to the DDNS provider, so you can select it based on which is easiest to configure, which is always-on (like your router), etc.
With lots of study and some trial and error, you can set-and-forget this and never have to worry about it again (hopefully!)..
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What is analogue cameras and IP cameras?

ANALOG CAMERAS – These are your standard type of security camera. Analogue signals can also be converted into a digital signal to enable the recordings to be stored on a PC as digital recordings. After the signal is converted to digital, it can be recorded through the use of a digital video recorder (DVR). Such a device is similar in functionality to a PC with a capture card and appropriate video recording software. Unlike PCs, most DVRs designed for CCTV purposes are embedded devices that require less maintenance and simpler setup than a PC-based solution, for a medium to large number of analogue cameras.

IP CAMERAS – A growing branch in CCTV is Internet Protocol Cameras (IP Cameras). IP cameras allow homeowners and businesses to view their camera(s) through any internet connection available through a computer or a 3G phone.

IP cameras are Closed-circuit television (CCTV) cameras that use Internet Protocol to transmit image data and control signals over a Fast Ethernet link. As such, IP cameras are also commonly referred to as network cameras. IP cameras are primarily used for surveillance in the same manner as analog closed-circuit television. A number of IP cameras are normally deployed together with a digital video recorder (DVR) or a network video recorder (NVR) to form a video surveillance system.

The terms IP camera and network camera are most commonly used to refer to surveillance cameras with a Fast Ethernet interface. In this context, the term IP camera does not include GigE vision camera, which is a machine vision camera with a Gigabit Ethernet interface. Internet Protocol is a protocol used for communicating data across a packet-switched network using the Internet Protocol Suite, also referred to as TCP/IP. As with digital still cameras, the resolution of IP cameras has increased with time. Megapixel IP CCTV cameras are now available at resolutions of 1, 2, 3, 5 and even 11 megapixels. Today there are many manufacturers of IP cameras. IP surveillance equipment vendors include both specialized digital imaging equipment manufacturers and larger manufacturers that are active in consumer, broadcast, and security video.

MEGAPIXEL CAMERAS – In some situations where standard-definition video cameras (either analog or digital) are used, the quality is going to be poor because the maximum pixel resolution of the image chips in most of these devices is 320,000 pixels (analogue quality is measured in TV lines but the results are the same); they generally capture horizontal and vertical fields of lines and blend them together to make a single frame; the maximum frame rate is normally 30 frames per second. That said, multi-megapixel IP-CCTV cameras are becoming more popular. They can capture video images at resolutions of 1, 2, 3, 5 and even up to 11 Mpix. Unlike with standard definition (digital or analogue) cameras, details such as license plates are easily readable. At 11 Mpix, forensic quality images are made where each hand on a person can be distinguished. Because of the much higher resolutions available with these types of cameras, they can be set up to cover a wide area where normally several analogue cameras would have been needed.

Cameras and video recording systems offer a high level of security.

Having the ability to capture a crime in progress will greatly help the authorities convict the suspects. We have all seen video footage on the news of crimes captured on video.

Video surveillance is the best way to monitor activity on your premise, regardless if you are there or not.

Systems now offer more then simple recording. With the new technology, you can remotely assess your camera system on the internet. Some offer access with your 3G phone. Digital Video Recorders (DVR) can also alert you of events via email. Event emails can be directed your mobile phone. Video surveillance has come a long way from the days of the VCR tapes.

At G&A Lock and Security, we offer many solutions to be able to monitor your premise with video technology. We are a Bosch dealer and have had much success with their premium camera technology.

As there is an extremely wide range of video technology for your security needs, we will help find the solution that is best fit for you and your budget. Have one of our security specialists help you with a free consultation.

Securing your premise with a video surveillance system is a step to greater peace of mind.

1200TVL CMOS image sensor CCTV cameras,Which one is better?



More: 

CMOS sensor’s  sensitivity are normally in the range of 6 to 15 lux. CMOS sensor have 10 times more fix pattern noise then CCD sensor. Fixed pattern noise is the kind of noise that stay on screen as if there is a patterned. As CMOS sensor will become useless under 10 lux. All camera for serious application are using CCD sensor. CMOS sensor are normally using on  toy or very low end home security.
There 2 exception.  CMOS sensor can be made very big and have same sensitivity as CCD sensor. CMOS sensor are very fast , it is 10 ~100 times faster then CCD sensor, so it is very good for special application such as high ens DSC camera ( Cannon D-30 ) or fast frame camera.

CMOS sensor can have all the logic and control circuit be build on the same silicon wafer dice so as to make the camera simple and easy to handle. Hence CMOS camera can be very small in size.
CMOS camera though consume same or more power then CCD sensor but CMOS sensor use less peripheral circuit such as  CDS, TG and DSP circuit, so the total power consumption is 1/2 to 1/4 less then a CCD camera on same size.
There is only one exception that Mintron C series camera is using only 12V/65 mA power which is almost same as CMOS camera but having much better image quality. C series camera using 0.35um 3.3v DSP hence consume very
 small power  ( 54C0,54C1,54C2,54C1,54C5,54C6) . All other CCD camera making by other company are consuming 12V/150~300mA, hence is 2 to 4 times more then CMOS camera that is on 5~12v and 35~70 mA

Ironically, although CCD stand for  “Charge Couple Device” and CMOS stand for “Complementary Metal Oxide Silicon”  but actually neither CCD nor CMOS have anything to do with image sensing. The actuarial sensor is a device called “Photo Diode”  Both CCD sensor and CMOS sensor ( as so called ), are actually using same kind of sensor called Photo diode. Photo diode is a P N junction diode that will convert photon of the light that is bombing the junction into proportional amount of electron. The amount of electron are them calculated and read as voltage of signal. The more the light that entering the photo diode the more the electron generated and the higher the voltage out put from the sensor.
CCD stand for  “Charge Couple Device” , CCD actually is only the technology to store the electron charge and the method to move these charge out of photo sensor in and organized way.
CMOS stand for “Complementary Metal Oxide Silicon” . CMOS actually is only a technology to make transistor on silicon wafer, and have no further meaning. Sensor being called CMOS sensor was a convenient way to discriminate it from CCD sensor and have nothing to do with the real ways that the sensor handling image. 

CMOS sensor convert electron generated by photo diode into voltage signal immediately without complicate process. hence it is much faster. This good point makes CMOS sensor very useful for fast frame camera, the frame speed can be as high as 400 ~2000 frame/sec. This point makes it very good for high speed moving object survey. however due to lack of good fast speed DSP there are little high speed camera on the market and are normally very expensive $3000 ~ 300,000 per unit. Mintron makes  75 frame CCD camera which is 3 times faster then PAL TV standard on 25 frame/sec. and it is the physical limit for a CCD device.

ONVIF 1.0 Megapixel IP Cameras Internal PoE Adaptor , High Resolution

ONVIF 1.0 Megapixel IP Cameras Internal PoE Adaptor , High Resolution

720P Megapixel IP Camera

Product Details:

Place of Origin:

ShenZhen China (Mainland)

Brand Name:

SHIXIN

Certification:

CE , RoHS , UL

Payment & Shipping Terms:

Minimum Order Quantity:

5 Piece / Pieces

Packaging Details:

Standard packing

Delivery Time:

5-7days

Payment Terms:

T/T , Western Union or PayPal

Supply Ability:

1000 Piece/Pieces per Month

Detailed Product Description

Type:

IP Camera

Style:

Bullet Camera

Sensor:

CMOS

Technology:

Infrared

Special Features:

1.0 Megapixels

Frame Rate:

30fps

ONVIF 1.0 Megapixel IP Cameras Internal PoE Adaptor , High Resolution

Specifications:

ONVIF 1.0 Megapixel IP Camera
Weatherproof
H.264 compression
Internal PoE adaptor

Weatherproof ONVIF 1.0 Megapixel IP camera POE  

ONVIF 1.0 Megapixel IP Camera
Weatherproof
H.264 compression
Internal PoE adaptor

Feature :

1.High resolution 1/3” CMOS 1.0 megapixel IR Dome IP Camera .
2.Video resolution up to HD 1280*720.
3.Day and night surveillance.

4.H.264 baseline profile at Level 3.0 realizes transmission of high definition video over low network bandwidth easily.
5.Real time transmission up to 30fps at 1MP.
6.Multiple streams with self-adapting technology support adjusting video frame rate automatically according to network bandwidth.
7.Multiple network protocol -TCP/IP,HTTP,FTP,NTP,RTP,ARP,ICMP,SMTP,POP3,DNS and RTCP.
8.remote view and management by IE and client software (CMS).
9.Various recording modes-motion detection recording,alarm recording,schedule recording and manual recording.
10.Support built-in 802.3af compliant POE.
11.Support 2-way audio with external microphone and speaker.
12.Meet ONVIF standard to enhance compatibility with various branded IP camera and platform for easy intergration.

Specification :  

Image Sensor

1/3″ 1.0 Megapixel CMOS Sensor

Lens

3.6/ 4.2/6mm fixed lens optional

Min. Illumination

0Lux@ IR on, B/W mode. 36*F5 LEDs, 20m IR view

CPU

HISILICON Hi3512

OS

Embedded Linux system

Video Codec

H.264

Video Resolution

Adjustable Resolution 1.0 Megapixel (1280*720), D1 (640*480), CIF (320*240)

Video Frame Rate

30FPS@ 1.0 MP, D1 and CIF, Real time

Streaming Level

2 adjustable

Bit Rate

32K~4Mbps

Audio compression

G.726

Audio input

MIC or Line-in input unbalanced, 1.4 Vp-p,1 Vms

Audio output

Unbalanced,1.4 Vp-p,1Vms

Alarm input / output

External alarm input and output sensor ( in developing)

Network Port

10-100M Ethernet RJ45 port

Network Protocol

TCP/IP, HTTP, FTP, NTP, RTP, ARP, ICMP, SMTP, POP3, DNS and RTCP

PTZ Control

RS485 Serial Port. Pelco-D/P

PoE

Optional, Support built-in 802.3af Compliant POE

SD card

N/A

Software

Free Client software and charged Intelligent Video analysis software

Mobile Phone View

IVS software support mobile phone view. Symbian, Android and Iphone mobile.

ONVIF

ONVIF compliant. Compatible with Milestone, Digifort, Axxon, Avigilon, Nuuo Ver.3.0 above, Geovision and Synology NAS at the moment

Working Temperature

temperature -10 ~ +50 C

Working Humidity

within 10~90% RH

Power input

DC 12V +5%

Send your inquiry directly to us:

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HD CMOS IP Camera 720p/ Support 2.0 Onvif Box Bullet H. 264 Waterproof Outdoor IR 30 Meters IP Cameras (IP-1248HMW)

HD CMOS IP Camera 720p/ Support 2.0 Onvif Box Bullet H. 264 Waterproof Outdoor IR 30 Meters IP Cameras (IP-1248HMW)

IP-1248HMW

Basic Info.

Model NO.:IP-1248HMW
Type:IP Camera
Sensor:CCD
Style:Box Camera
Feature:Waterproof / Weatherproof, High Definition
Technology:Infrared
Kind:Autofocus Lens
Horizontal Resolution:1.3mpixels
IR Distance:30 Meters
Outdoor IP Cameras:Waterproof Surport
Power Adapter Output:12VDC/1.5A
Compression Format:H.264/Mjpeg
Compatible with Software:Sdk
Supply Power:Poe
Export Markets:Global

Additional Info.

Trademark:SHIXIN
Packing:Natural Package
Standard:CE, RoHS, SGS, GMP
Origin:Shenzhen, China
Production Capacity:1000PCS/Month

Product Description

HD CMOS IP Camera 1080P/ Support 2.0 Onvif Box Bullet H. 264 Waterproof Outdoor IR 30 Meters IP Cameras (IP-1248HMW)

1. With High definition interlace scanning megapixel CMOS sensor
2. Real-time frame rate up to 25fps @ 720P resolution, H. 264 compression
3. Support motion detection.
4. Multiple Simultaneous Steams, and frame
5. Built-in Web server, support IE browser
6. Support up to 10 remote viewers at the same time
7. Compatible with general SDK software

Model IP-1248HMW is a HD Camera, Megapixel IP Camera, IR Camera with WIFI function
Compression H. 264
Image Sensor 1/3″ CMOS image sensor
Lens Megapixel Lens, 6mm focus, CS (optional)
Day/Night Dual filter switching (IR CUT)
IR LED 30PCS 5mm IR LED, IR distance can be 20m
Min. Illumination 0.5Lux @ F1.2; 0 Lux (IR LED ON)
Image Resolution 1280X720
Max Frame Rate: 25fps@1280X720
Bit Stream 32 Kbps – 8 Mbps
Intelligent Video Motion detection (Max 4 area)
Audio Input 3.5mm LINE-IN,
Audio Output 3.5mm LINE-OUT
Alarm Input 1 CH switching value input, Vin<=45V or Iin <=25mA
Alarm Output 1CH relay output, 125VAC/0.5A, 30VDC/2A, Normal open
Audio Compression G. 711
Alarm Intelligent Video and Alarm Input Way: Trigger alarm output, Send by Email/ upload pictures to FTP, local store.

Dual Stream Support
Security Password protection, User Rights Management
Network Interface 10M/100M, auto synchronization, RJ45
Protocols TCP, UDP, IP, HTTP, DHCP, RTP, RTSP, FTP, SMTP, DNS, DDNS, NTP, ICMP, IGMP, ARP, SIP
Working Temperature / Humidity -10° C – 50° C
Humidity: 10 – 90% Rh no condensation
Power Adapter Output: 12VDC/1.5A; Input: 100 – 240VAC, 50 – 60Hz

Send your inquiry direct to this supplier

Product Catalog

Shenzhen Shixin Digital Co., Ltd is a professional manufacturer of IP cameras, CCTV cameras, web cams, and other CCTV accessories, established in 2001. We always commit ourselves to studying, producing & selling the series IP&PC &CCTV products. Because of making great efforts several years, now we become a major manufacturer of selling IP&PC&CCTV in china. Our products are sold popularly in domestic and moreover in Europe, North America, South America, Southeast Asia and so on, have won most domestic and overseas market.

At present, our factory own SMT automatic chip machine; our production process has gained the TQC quality system (the Certificated Quality Management System), IQC strictly receiving electronic accessories’ strictly controlling quality; QA guarantees 100% certified rate of absolute products. We are trying our best to take our advantage of technology and science in order to create mature serials products of IP, PC, CCD and CMOS Cameras. Our marketing branch locates at Seg Plaza, which business many covers in track of sale of domestic and overseas market, and after-service. The Engineering Department devises the kinds of camera board and pick-up camera directly according to the customers’ demand.

We have built up a strict quality control system. Our personnel try their utmost to design and develop more high-tech products. In order to set up a professional marketing service team and a scientific sales system, we keep our staff get training from experts to strengthen our service level, and to provide excellent services to our customers.

“Good Quality, Competitive prices, and Excellent Service” is our commitment; welcome you to join us in creating a prosperous business together!

 

Attached is our catalog for your information.

 

1[1] 2[1] 3[1] 4[1] 212[1] atm1[1] atm2[1] atm[1] ATM_副本 封底[1]

HD CMOS IP Camera 720p/ Support 2.0 Onvif Box Bullet H. 264 Waterproof Outdoor IR 30 Meters IP Cameras (IP-1248HMW)

HD CMOS IP Camera 720p/ Support 2.0 Onvif Box Bullet H. 264 Waterproof Outdoor IR 30 Meters IP Cameras (IP-1248HMW)

Min. order:1 Pieces
Trade Terms:FOB, EXW
Payment Terms:L/C, T/T, Paypal, Western Union
Price Valid Time:From Nov 15, 2013 To Feb 15, 2014

Basic Info.

Model NO.:IP-1248HMW
Type:IP Camera
Sensor:CCD
Style:Box Camera
Feature:Waterproof / Weatherproof, High Definition
Technology:Infrared
Kind:Autofocus Lens
Horizontal Resolution:1.3mpixels
IR Distance:30 Meters
Outdoor IP Cameras:Waterproof Surport
Power Adapter Output:12VDC/1.5A
Compression Format:H.264/Mjpeg
Compatible with Software:Sdk
Supply Power:Poe
Export Markets:Global

Additional Info.

Trademark:SHIXIN
Packing:Natural Package
Standard:CE, RoHS, SGS, GMP
Origin:Shenzhen, China
Production Capacity:1000PCS/Month

Product Description

HD CMOS IP Camera 1080P/ Support 2.0 Onvif Box Bullet H. 264 Waterproof Outdoor IR 30 Meters IP Cameras (IP-1248HMW)

1. With High definition interlace scanning megapixel CMOS sensor
2. Real-time frame rate up to 25fps @ 720P resolution, H. 264 compression
3. Support motion detection.
4. Multiple Simultaneous Steams, and frame
5. Built-in Web server, support IE browser
6. Support up to 10 remote viewers at the same time
7. Compatible with general SDK software

Model IP-1248HMW is a HD Camera, Megapixel IP Camera, IR Camera with WIFI function
Compression H. 264
Image Sensor 1/3″ CMOS image sensor
Lens Megapixel Lens, 6mm focus, CS (optional)
Day/Night Dual filter switching (IR CUT)
IR LED 30PCS 5mm IR LED, IR distance can be 20m
Min. Illumination 0.5Lux @ F1.2; 0 Lux (IR LED ON)
Image Resolution 1280X720
Max Frame Rate: 25fps@1280X720
Bit Stream 32 Kbps – 8 Mbps
Intelligent Video Motion detection (Max 4 area)
Audio Input 3.5mm LINE-IN,
Audio Output 3.5mm LINE-OUT
Alarm Input 1 CH switching value input, Vin<=45V or Iin <=25mA
Alarm Output 1CH relay output, 125VAC/0.5A, 30VDC/2A, Normal open
Audio Compression G. 711
Alarm Intelligent Video and Alarm Input Way: Trigger alarm output, Send by Email/ upload pictures to FTP, local store.

Dual Stream Support
Security Password protection, User Rights Management
Network Interface 10M/100M, auto synchronization, RJ45
Protocols TCP, UDP, IP, HTTP, DHCP, RTP, RTSP, FTP, SMTP, DNS, DDNS, NTP, ICMP, IGMP, ARP, SIP
Working Temperature / Humidity -10° C – 50° C
Humidity: 10 – 90% Rh no condensation
Power Adapter Output: 12VDC/1.5A; Input: 100 – 240VAC, 50 – 60Hz

Send your inquiry direct to this supplier
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