What is an IP camera?

What is an IP camera, and what are the main differences between an IP camera and a CCTV camera?

IP camera, or Internet Protocol camera is also called Network Camera, and they are widely used for residential and commercial purposes, offering the user high quality.

IP camera needs a static IP address for the router and other network devices to identify and connect with it. In case of a dynamic IP address that keeps changing randomly every time the camera is connected to the network, a fixed URL via Dynamic Domain Name Service (DDNS) must be set up.

While CCTV cameras transmit one-way analog data with the help of coaxial cable to the DVR, and then it is converted to digital data, IP cameras are able to send and receive, that is to stream digital video, PoE - a system that passes electrical power along with data on an Ethernet cable., and in this case there is no need in analog to digital conversion. IP cameras stream the video directly to the NVR, a Network Video Recorder. The main advantage of IP camera over CCTV is that the camera captures and delivers a higher quality video. Additionally, IP cameras capture a much wider field of view than comparable analog cameras. As a result, the cost of IP cameras is much higher than that of analog ones.

IP cameras either have wired or wireless connections, and are used both indoors and outdoors, during the day and at night.

There are two kinds of IP cameras:

Centralized IP cameras

These cameras require a central NVR to store the recording, handle video and alarm management.

Decentralized IP cameras

Decentralized IP cameras don’t need a central NVR, and the video is processed at the source, as the cameras have recording function built-in and can thus record directly to any standard storage media, such as SD cards, hard disc, or a server.

Hikvision 4MP WDR Vari-focal Bullet Network Camera - DS-2CD2642FWD-I

DS-2CD2642FWD-I is a 4 megapixel varifocal bullet network camera, which is ideal for both indoor and outdoor use, for home surveillance as well as for business purposes. The camera comes with a mass of features like 120dB WDR e, 3D digital noise reduction, a built-in microSD card slot for up to 128 GB on board storage along with NAS storage, and IP66 rated weatherproof housing which makes the camera durable against harsh outdoor weather conditions. This is very important as it ensures peace of mind knowing that your cameras will not be damaged even if there is a steady stream of water pouring over them. DS-2CD2642FWD-I is ONVIF-compliant for compatibility with other surveillance devices.
The camera supports Dual streaming in H.264+, H.264, and the sub-stream for mobile surveillance., has IR cut filter with auto switch, 2.8-12mm motorized varifocal lens surrounded by IR LEDs for up to 98.4' of night vision., Auto-iris, electronic shutter for different surveillance environments and l 3-axis adjustment.
Alarm will be triggered in case of Intrusion detection, line crossing detection, motion detection, dynamic analysis, tampering alarm, network disconnect, IP address conflict, storage exception.
Camera also supports VCA, which is compatible with NVR for the second time of video searching and analyzing. Security features include One-key reset, flash-prevention, dual stream, heartbeat, mirror, password protection, privacy mask, watermark, IP address filtering, anonymous access.

 

• 1/3” Progressive Scan CMOS
• Up to 4 megapixel resolution
• 120dB WDR
• 3D DNR
• Up to 30 meters IR range
• Built-in Micro SD/SDHC/SDXC card slot, up to 128 GB
• Audio/alarm I/O (-S)
• Mobile Monitoring via EZVIZ P2P or iVMS-4500
• 12V DC±10% & PoE(802.3af)
• Support H.264+
• IP66

Accessories

DS-1275ZJ

 DS-1260ZJ

 

What is WDR - Wide Dynamic Range?

WDR is the abbreviation used for Wide Dynamic Range. WDR is the technology used on professional security cameras, where there is need to balance brighter and darker surveillance areas. WDR is actually the difference in lighting. It is clearly seen, when recording entrance, where bright outdoor light is merged with dim indoor light, or when the area has large glass windows. Cameras using Wide Dynamic Range technology are able to record clearer details in low light scene, while making sure that the highlights don't get blown-out, and as a result having natural looking shot.

WDR technology is commonly used in surveillance cameras and in some medical applications. In an area with extremely bright and dark parts or in back light situations when the light comes from the back of a person, standing in front of a big window, a camera without WDR would produce an image where objects in the dark areas are hardly visible. Wide dynamic range solves this issue by applying techniques such as using different exposures for different objects in a scene for making objects in both bright and dark areas more visible and clearer. 

At www.koacctv.com high quality professional security cameras with true WDR are offered to re-sellers and installers, some of the cameras You can find below.

Hikvision 2MP WDR Fixed Dome Network Camera

 3 Megapixel high-performance CMOS

Analog HD output, up to 3MP resolution

True Day/Night

OSD menu, DNR, Smart IR

True WDR, up to 120dB

EXIR technology, up to 20m IR distance

IP66 weatherproof

Up the Coax(HIKVISION-C)

• 3 Megapixel high-performance CMOS
• Analog HD output, up to 3MP resolution
• 2.8-12mm motorized vari-focal lens
• True Day/Night
• OSD menu, DNR, Smart IR
• True WDR, up to 120dB
• EXIR technology, up to 40m IR distance
• IP66 weatherproof
• Up the Coax(HIKVISION-C)

Hikvision 3MP WDR MVF EXIR Turret Camera DS-2CE56F7T-IT3ZB

Hikvision 4MP WDR Fixed Dome Network Camera

• 
  
• Up to 4 megapixel high resolution
• Full HD1080p video
• Dual video streams
• 2.8mm/4mm fixed lens
• 120dB Wide Dynamic Range
• 3D Digital Noise Reduction
• 3-axis adjustment
• DC12V & PoE
• Support H.264+
• Up to 30m IR range
• IP66 weather-proof protection
• IK08(-W model)/IK10(non -W model)

Hikvision 4K Smart IP Camera - DS-2CD4585F-IZH

DS-2CD4585F-IZH is a 4K Smart IP Outdoor Dome Camera by Hikvision, leading supplier of video surveillance solutions. In this camera high resolution IP video is combined with reasonable value.

The cameras from this line are specially designed and manufactured to meets user’s needs for acquiring high quality images. Enabling users to excellently monitor environment day & night, this new camera series gives users the confidence that their property is securely protected.
DS-2CD4585F-IZH captures a maximum of 4K (4096 × 2160) resolution images at 22 frames per second (fps) – best results are achieved at daytime, but when light level goes down, the built-in infrared LEDs assist with night-vision at a range of up to 40m. A built-in IR cut filter switches from full colour to black and white night vision which means monitoring and recording can continue day or night. Due to IP66 rated outer casing with IK10 rated impact protection, the camera is protected against water, dust and attempts to damage the camera. WDR improve image quality in challenging lighting conditions. Special defog technology aids clearer visibility in smoky, foggy and hazy conditions

DS-2CD4585F-IZH

The camera is an ideal choice for those who look for 24/7 outdoor monitoring with high resolution coverage. This HikVision DS-2CD4585F-IZH 4K IP Camera offers 8MP HD resolution with up to 30fps frame rate, DWDR, PoE, Defog, 3D DNR and complete Smart Feature-set to meet a wide variety of applications. The camera is aslo simple to install using PoE.

KEY FEATURES


Up to 4096 x 2160 High Resolution
WDR, 3D DNR
Multi-Video Streams
On-Board Storage, Up to 128 GB
Up to 40 Meters IR Range
Motorized Lens with Smart Focus
Vandal Resistant and IP66
Smart Heater
People Counting

Security Cameras as Crime Deterrent

We have already discussed the importance of using CCTV cameras in public places, and first of all the role of CCTV cameras as crime deterrent. In this article we will find out, what do we mean by saying crime deterrent?

The most important thing is, that the cameras are an effective tool in reducing crime if deployed the right way. Correct installation, monitoring and maintenance of the cameras plays a key role in crime prevention. The use of CCTV Cameras can be a solution to issues like vandalism, drug use, drunkenness, racial harassment, sexual harassment, anti-social behavior.

It is very important to let the society know about the use of security cameras at certain area. The offender must be aware of the cameras' presence. There should be put special signs for cameras, and as different studies and statistics show, crime rate has decreased in areas, where warning signs were put. Actually, it is not so important to arrest the criminal, but it is of more importance to prevent the misbehavior. Sometimes it is even possible that fake cameras could achieve the same preventative aim as active systems. Anyhow, there might be cases, where hidden cameras should be used, because of some really important security matters, or when the police is carrying out an investigation.

Video evidence not only helps police investigate crimes, it can be used as evidence in court.

Internal cameras are meant to keep the employees honest and identify those who are not. Internal cameras can also prevent shoplifting and armed robbery and they can identify those who commit crimes despite the cameras.

An integrated security system that includes surveillance cameras is a must have nowadays, especially in areas which have high criminal rate.

So, Video Surveillance aims to:

1. deter Crime

2. increase the confidence in public safety

3. increase the property protection status

4. help police with its investigations

5. prevent social misbehavior

Hikvision 4MP WDR Mini Dome Network Camera - DS-2CD2542FWD-I(W)(S)

As one can guess from the name, DS-2CD2542FWD-I (W)(S) is rather small (99.3×96.7×52.8 mm), but actually, this mini camera has features that leave behind other bigger models. The IP camera is suitable for indoor and outdoor use, it is vandal-resistant and has an IP67 rating, and also, it has perfect design. The camera is equipped with 120dB Wide Dynamic Range. This technique ensures good image quality in challenging lighting conditions. This camera has especially perfect low-light performance.
DS-2CD2542FWD-I (W)(S)  uses H.264 +, a next-generation video compression format, H.264 offers better quality at lower file sizes.
Camera adopts 1/3" Progressive Scan CMOS, Maximum resolution is 2688×1520, supports day&night IR Cut Filter. See the full features below, and for ordering the camera press here

• Up to 4 megapixel high resolution.
• Full HD1080p video
• Dual video streams
• 2.8mm/4mm/6mm fixed lens
• 120dB Wide Dynamic Range
• 3D Digital Noise Reduction
• 3-axis adjustment
• DC12V & PoE
• Support H.264+
• Up to 10m IR range
• IP66 weather-proof protection
• IK08 vandal-proof protection
• -S: Built-in microphone, Audio Output, Alarm IO
• -W: Built-in Wi-Fi
• Mobile Monitoring via EZVIZ P2P or iVMS-4500