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Clarifying the myths of HD-Over-Coaxial solutions

Clarifying the myths of HD-Over-Coaxial solutions

Editor / Provider: Alf Chang, a&s International | Updated: 12/15/2014 | Article type: Tech Corner

 

HD-over-coaxial solutions, which transmit high-definition video over coaxial cables, provide an alternative to HD surveillance besides IP. However, there are still doubts and concerns from the market about how they are set up and whether they can truly deliver. This article lists some of the myths concerning HD-over-coaxial and demystifies them one by one.

 

Q: For HDCVI, it's compatible only with its own DVRs. What about HDTVI and AHD? Are they able to connect with any type of DVRs?

A: The answer to this is of course negative. Each HD-over-coaxial solution has its own format and must go with its own DVRs. The only solution that's compatible with all formats is 960H. After initial testing, it was confirmed that different-brand HDTVI and AHD cameras can work with their respective DVRs, as long as the same format is used.

Q: Will HDCVI and HDTVI completely replace 960H, since their picture quality is the same as 960H?

A:
In terms of what the 720p HD-over-coaxial solution can offer, it is indeed very similar to 960H picture quality. However, 960H products still stand out since they are offered and supported by most of the current camera vendors. We can assume in the future, if there are more 1080p HD-over-coaxial solutions being introduced to the market, it will definitely affect the market of 960H or even IP for the SMB sector.

Q: Could the current HD-over-coaxial DVRs support 720p and 1080p at the same time?

A:
The answer is no. Test results show that HDCVI, HDTVI, and AHD each can support 720P and 1080P cameras and corresponding 720P and 1080P DVRs. The issue right now is whether the same DVR can record 720P and 1080P videos at the same time, no matter which technology is employed. This still needs to be confirmed.

Q: When different numbers of HD cameras are used, or when coaxial cables of different lengths or grades are used, would there be any signal loss issues? Experience dictates that when signals are transmitted through different-length coaxial cables, the disparity in voltage may cause poor reflection of images, which may appear to be stacking up on one another. Or, the difference in electrical grounding may create noise. Will this also affect HD-over-coaxial?

A: The answer is yes, due to the lack of equalizers in HD-over-coaxial DVRs at the current stage.

Q: From a project implementation perspective, does transmission distance for HDCVI, HDTVI, and AHD matter? Is it a key factor to consider?

A:
Another good question. Each HD-over-coaxial solution claims to be able to transmit over a distance of 300 to 500 meters, or even 600 to 1,000 meters. First, we must applaud HD-over-coaxial for breaking the distance barrier. Yet from a project perspective, this doesn't really mean anything. First, in the past, transmission over a 5C-2V cable without a booster can go for 200 to 225 meters. With booster, transmission can be extended to over 400 meters. Yet quality loss is a byproduct of signal boosting, as noise is augmented. So for any coaxial implementation, shorter distances are preferred due to reliability. To transmit beyond 500 meters without sacrificing picture quality or reducing the number of cameras, what's usually done is the usage of multimode fiber for distances of three to five kilometers or single-mode fiber for longer distances. With a dense wavelength division multiplexing device, one multimode fiber or single-mode fiber can transmit four to 32 streams. In other words, from a project perspective, transmission distance is not an issue and is not a determining factor for choosing between HDCVI, HDTVI, and AHD.

Q: With HDCVI, HDTVI, and AHD breaking traditional distance barriers, can they really help with larger projects, or are they more suitable for SMEs?

A: No matter what grade of coax cable you use, it's just a medium. Transmission distance really depends on the system and voltage. The size of project depends on several things – for example, whether there will be compatible matrix systems like those used for HD-SDI, or HD DVRs that support more channels. Only by then will the discussion of which solution suits which type of project be more meaningful. For now, HD-over-coaxial is implemented in the same way as traditional analog, namely for small- to medium-size projects through a DVR+CMS architecture.

The above were answers to questions commonly asked of HD-over-coaxial solutions. Once they are more widespread in the market, there will surely be more questions concerning their technology and applications. That's when HD-over-coaxial will truly become a game changer.

Sponsored by:  
Secutech, the annual international exhibition and conference for world-class manufacturers and discerning buyers of security products and solutions, will take place from 28 – 30 April 2015 at the Taipei Nangang Exhibition Center in Taiwan. 
Now in its 18th year, secutech features some 500 exhibitors from 20 countries and attracts over 26,000 visitors. Dedicated pavilions for the following sectors: Surveillance | Software & Management Systems | Transmission & Networks | Smart Homes | Key Components / Parts | Electronic Systems

Register your FREE visitor badge now at www.secutech.com/registration/en

Samsung video surveillance solutions certificated Network Rail PADS

Samsung video surveillance solutions certificated Network Rail PADS

Editor / Provider: Samsung Techwin | Updated: 12/3/2014 | Article type: Security 50

Samsung Techwin cameras, domes, recorders and Ethernet switches within its IP network video surveillance range, have been approved for use within Network Rail infrastructure.

The issuing of the PADS Certificate of Acceptance follows a process during which the Samsung Techwin video surveillance products were evaluated and comprehensively tested to ensure that they are reliable, fit for purpose and comply with Network Rail's demanding standards in respect of safety.

“This is a significant landmark for Samsung Techwin as PADS approval means that consultants, system designers and specifiers can include our products in their proposals and be confident that they will be acceptable to Network Rail's project managers,” said Simon Shawley, Director, Northern Europe for the Security Solutions division of Samsung Techwin Europe. “The rail sector offers considerable new business opportunities for installers and systems integrators and we are therefore understandably very pleased that we can now offer high performance video surveillance solutions which, as well as being robust and reliable, will meet the safety requirements of security projects within the Network Rail infrastructure.”

Among the products approved are Samsung Techwin's ‘open platform' WiseNetIII high definition megapixel cameras. These offer users the freedom to choose the perfect combination of edge based video analytics and video management software (VMS) which best matches the requirements of individual projects.

The PADS Certificate of Acceptance issued by Network Rail also provides approval for a number of Samsung Techwin analogue cameras and DVRs.

Hikvision's Turbo HD: Bringing HD quality to an analog system

Hikvision's Turbo HD: Bringing HD quality to an analog system

Editor / Provider: Sponsored by Hikvision | Updated: 9/22/2014 | Article type: Tech Corner

Regardless of whether or not video surveillance is headed toward IP, analog will always have a place in the market. The ease of connection, immediate transmission rate, simple maintenance, and safe and stable application will all keep analog a mainstay in video surveillance. To fit some systems integrators and end users' needs for analog systems, Hikvision launched its first HD analog systems, Turbo HD, ranging from cameras to DVRs.

How does Turbo HD Analog Solution work?
The Turbo HD analog system integrates digital, codecs, modem, and analog transmission technologies, which breaks the limit of 625TVL (not 960H) simulation technology and allows for HD in analog transmission, making it easy for old systems to upgrade to HD.

At the core of Hikvision's Turbo HD analog system is a modem chip that processes HD signals. After the HD signals are captured by the megapixel high-resolution CMOS sensor, the optical image is processed by the image chip and forms uncompressed digital signals, which saves the original information. This imaging principle is basically the same as that of a HD digital camera, but the difference is Turbo HD analog solution adopts analog transmission over coaxial cable, namely, digital signals that are modulated into analog signals by a modulation chip. After HD video signals are transmitted to a back-end DVR, the modulation chip demodulates and uses a codec to compresses them into HD net video signals, which are then stored. The DVR modulation chip can modulate four Turbo HD signals in order to improve efficiency of demodulation.

Advantages:
• HD visual effects: Currently, Turbo HD analog solution is available in two resolutions: 2 megapixels at 1,080P and 1.3 megapixels at 720P. This allows for 900TVL to 1,100TVL of HD quality, which should be able to satisfy most HD surveillance needs.
• Long-distance transmission: It transmits 1,080P over 300 meters via a 75-5 ohm coaxial cable and 720P up to 500 meters.
• Open platform: Hikvision's Turbo HD analog system is compatible with HDTVI products of same type from third party companies. It can also receive different signals from 1,080P network cameras, 960H cameras, and SD analog cameras.
• Reverse control over coaxial cable: There is no need for customize configured keyboards for the OSD function menu of front-end cameras and dome camera cradle controls—everything can be done through the DVR via coaxial cable, providing the same flexibility as network equipment.
• Multi-functions: Software allows IP cameras to have many functions; however, many of these functions are difficult to realize on an analog camera. With the Turbo HD analog system, there are more functions such as transmission through fog, WDR, backlight compensation, and the intelligent analysis of VQD[1].

Product Design
Like other product lines, the Turbo HD analog system is selfcontained. To meet the needs of different customers, it provides a variety of camera series including dome cameras, half-dome cameras, fixed cameras, bullet cameras, integrated cameras, non-spherical camera, etc., all designed with infrared supplementary lighting and are IP66-rated for indoor and outdoor use.

Hikvision also provides several types of Turbo HD DVRs: mainly 4-, 8-, and 16-channel products. From the outside, the Turbo HD DVR looks the same as a traditional DVR. However, once the back cover is opened and you look at the PCB, you will find there are four HDTVI demodulation chips in addition to the video processing chip. In addition, the BNC video input interfaces for the Turbo HD DVR are not separated for SD and HD — the DVR recognizes the signals and resolution after analog video is input though these interfaces. As to DVR, the Turbo HD analog and IP inputs are two individual signals that do not restrict each other. Take DS-8116HQHI-SH as an example. This DVR supports 16 channels of analog video and two channels of network video input and can realize maximum codec storage of 18 channels of 1,080P HD signals.

Product Test
Eight channels with 1,080P and 720P Turbo HD cameras, as well as one channel with a 2-megapixel HD IP cameras, one channel with a D1 HD analog video, and one channel with a 960H camera; 10 channel signals in total were used for the test. They are tested and stored in a DS-8116HQHI-SH VCR (available with eight Western Digital 4TB hard drives). Turbo HD cameras need one-to-one corresponding modem chips to receive video signals. For this test, the camera was connected directly to the DVR. The video was then uploaded to Skyworth's display's DVR HDMI interface and co-browsed through C/S client from an Internet-connected computer.

Image quality test: 1,080P HD Picture Quality
With the DS-2CE16D5T-AVFIT3 as the video source, the camera was aligned at the sharpness testing card and focus at minimum zoom. The observed local output video showed horizontal 1,050TVL and vertical 1,100TVL. The camera's wide-angle lens caused poor edge sharpness, but still provides up to 800TVL. The results were almost the same with 1,080P IP HD, and even better than some 1,000TVL IP HD.

Sharpness Test
With the 24-color reduction test card, the reduction was accurate with no partial color. Compared with IP HD images, the color was more transparent, closer to the color performance of HD-SDI digital signals with codec. At the same time, in the gray scale test, the gray-scale performance at the seventeenth and eighteenth levels were not inferior to IP camera either.

In the scenery image quality test, the pictures were penetrating, smooth, and layered—so much so that you would not believe they came from an analog system. The superior color reduction is closer to that of SDI digital pictures without compression loss.

In addition to the transmission test at short range, we also tested 1,080P at 300 meters over a 75-5 ohm coaxial cable. In the sharpness test, after a 300-meter long transmission, the image quality of 1,080P was not reduced: horizontal 1,050TVL; vertical 1,100TVL; and edge 800TVL were all easily distinguishable with accurate color reduction. Meanwhile, in long-distance transmissions, when placing a telephone next to the coaxial cable and camera to cause signal interference, no abnormalities appeared in the picture.

Network Design With Flexible Controls
Although the Turbo HD analog system uses analog signals to transmit signals, it incorporates Hikvision's network advantages into its new generation of Turbo HD products, such as WDR support, defog, backlight compensation, etc. During the test, a fog simulation test was conducted: when the defog function was off the picture was hazy; however, after turning on the function, the outline of the picture was clear, and the effect on the video in terms of penetration, color, and sharpness was close to that in a no-fog situation. Similarly, in the backlight compensation test, when the backlight compensation was turned on under hard light the ambient light was suppressed as well, making the doll easily identifiable.

In the test, the codec parameter was set for 1,080p video to 1,080P/4 Mbps (under real-time 25fps). HD video was previewed at C/S client-side after codec by DVR (the code rate was steadily controlled between 4.4 to 4.5 Mbps). When delayed, focusing the camera on the electronic stopwatch the delayed time of 1,080P Turbo HD from imaging to display according to DVR local display and photo capture was calculated to be about 170 to 220 milliseconds, proving the fast transmission rate of the picture.

Replay: Fast Operation and Smooth Replay
The DVR also has intelligent analytic functions, such as a tripwire test. It can monitor video channel quality in real time, including diagnostic functions for blurry images, abnormal brightness, and crash screens, as well as immediately preserve the monitor screen.

DVR DS-8116HQHI-SH supports a maximum of 18 channels of video recording and a maximum of 16 channels of 1,080P synchronous replay. After four to five hours of constant recording, video can quickly be retrieved via time and/or channel through the replay menu. For this test we replayed 10 channels: observed was no frame loss in the picture and smooth replay. Note that the image quality, color, and sharpness could fully meet the requirements of HD forensics. In the test, the codec parameter was set for 1,080p video to 1,080P/4 Mbps (under real-time 25fps). HD video was previewed at C/S client-side after codec by DVR (the code rate was steadily controlled between 4.4 to 4.5 Mbps). When delayed, focusing the camera on the electronic stopwatch the delayed time of 1,080P Turbo HD from imaging to display according to DVR local display and photo capture was calculated to be about 170 to 220 milliseconds, proving the fast transmission rate of the picture.

Single channel replay, real-time image quality
During single-channel video replay, we called up the data rate testing software. After a long period of observation, we found that the camera used real-time replay buffer technology of 1,080P real-time replay at about .4 to 4.5 Mbps for singlechannel replay, conforming to codec limits and consistent with those in real-time preview. To reduce storage space and bandwidth pressure in remote preview or replay, 1,080P can be encoded and decoded at a rate of 2 to 3 Mbps or 720P at 1 to 2 Mbps, all while ensuring image quality with DVR low-coding technology. There is no obvious decay of image quality between low-code stream and standard-code stream transmission.

Hikvision Turbo your analog 1080P

Hikvision Turbo your analog 1080P

Editor / Provider: Sponsored by Hikvision | Updated: 9/15/2014 | Article type: Hot Topics

As a top-notch technology, Hikvision Turbo HD Analog solution enables up to 500m HD video transmission over existing coaxial cable and offers seamless compatibility with traditional SD cameras, HDTVI-compliant cameras and DVRs, as well as IP cameras.

As of now, high definition (HD) is the real thing for users to identify objects or individuals in a critical scene. However, the current analog systems, though still occupying a significant market segment, can hardly achieve HD picture quality. Though HD-SDI provides 1080p resolution, the video transmission distance is still limited at up to 100 meters. IP, on the other hand, providing another choice for HD; however, is still more pricy than analog. Meanwhile, for those who get used to using the existing analog security equipment, it is also difficult for them to immediately adapt to the IP technology.

All of these have led the companies to come up with new ideas and solutions to enable HD images while maintaining the same user habits over existing coaxial cable deployment. The Hikvision Turbo HD Analog solution is just the answer!

HD Performance at 1080P/720P
The Hikvision Turbo HD product family is based on the HDTVI (High Definition Transport Video Interface) technology and is ideally suited for upgrading existing standard definition systems at low cost. It retains the ease-of-use of an analog system while offering up to 1080P HD video output.

In comparison with a traditional analog system (normally with analog cameras consisting of lenses, image sensors and image processors, and back-end devices receiving image signals for encoding.), the Turbo HD analog solution includes two additional chips -- a transmitting chip (TX) and a receiving chip (RX) -- for front-end Turbo HD cameras and back-end DVRs separately. With these two chips, the Turbo HD analog solution allows much higher video image resolution and longer distance for HD video transmission.

Open HDTVI Technology for 3rd-Party Device Compatibility
All Hikvision Turbo HD products adhere to the HDTVI open standard, which guarantees trouble-free connections to other HDTVI-compliant cameras and DVRs. The Hikvision Turbo HD DVRs can also connect with traditional SD analog cameras, and all Hikvision Turbo HD cameras can access third-party DVRs equipped with HDTVI technology from other manufacturers.

Tribrid System - Futureproof by Combining Turbo HD, Analog, and IP
The Hikvision Turbo HD DVR offers simultaneous connections to IP, analog, and Turbo HD cameras, and can automatically detect incoming signals and record accordingly. This means that existing systems can be upgraded simply by replacing the current cameras and DVRs, while new areas may be covered with the addition of IP network cameras. Alternatively, users can also keep the existing SD cameras and only replace the necessary surveillance points to HD.


Up to 500m HD Transmission via Coaxial Cable
Hikvision HDTVI technology guarantees up to 500 meters of high-quality and reliable transmission at HD resolution via coaxial cable. Conventional analog solutions can hardly achieve this resolution. Neither does the HD-SDI solution, which has long distance limitations. This makes Hikvision Turbo HD a perfect solution to fit all requirements. Furthermore, the Turbo HD Analog solution even supports UTC for remote setup and configuration and enables OSD menu and PTZ control via coaxial cable. Users no longer have to go to the camera to make changes. This allows for much faster and easier camera installation and management.

Multiple Product Styles and Rich Features
In the Turbo HD portfolio, Hikvision now offers a comprehensive, 32-strong range of Hikvision DVRs and 720P/1080P cameras, including Bullet, Dome, PTZ Dome, and Turret units for indoor and outdoor use, offering a bevy of excellent features such as digital noise reduction, ultra-low light illumination, smart IR, vari-focal lens, IP66 weatherproof, and vandal proof housing. Features such as VQD (Video Quality Detection), low bit rate on video storage, line crossing detection, and intrusion detection will also be available in the coming product versions.

A Total Security Solution
Last but not least, Hikvision also offers its video management software including iVMS-5200 Professional/Enterprise, iVMS-4200 client software, and iVMS- 4500 mobile phone software to further provide an easy-to-use, highly reliable, and feature-rich customer platform, making a total solution for any security needs. Hikvision iVMS-5200 Professional/Enterprise Software offers open integration, multiple storage and database solutions, video analytics, and other powerful functionalities for professional applications.

According to Keen Yao, International Marketing Director of Hikvision, “Turbo HD is a hi-tech tour-de-force in zero-latency, long distance HD-over-coax that demonstrates our commitment to pushing the boundaries of CCTV technology. Until recently, the only option for HD resolution was the wholesale adoption of IP cameras and their associated technology. Now, with the launch of the Hikvision Turbo HD Analog solution, users can enjoy 720P/1080P without even upgrading to IP or even replacing their existing cabling structure.”

EverFocus to showcase comprehensive solutions with latest line-up at Intersec 2015

EverFocus to showcase comprehensive solutions with latest line-up at Intersec 2015

Editor / Provider: Sponsored by EverFocus | Updated: 12/1/2014 | Article type: Hot Topics

EverFocus is going to exhibit its recent and upcoming products at Intersec, the leading international platform of security and surveillance industry in the Middle East and North Africa region during 18th to 20th January, 2015. EverFocus will highlight its position at the event as a solution provider to offer customers with the most customizable surveillance solutions utilizing its complete product line-up including eZ.IP, eZ.HD, mobile and access control series that we will demonstrate this time.

EverFocus will display our latest products with a focus on four main areas: The eZ.IP series comprises a diverse array of function-abundant IP cameras with true plug & play 8-channel NVRs. It features an IP video surveillance solution that stresses ease-of-use and intuitive user experience. On top of that, the eZ Tracker function, the synergy of fisheye and PTZ camera will also be showcased at our booth. The eZ.HD series is another series which EverFocus would be more than eager to introduce to our analog CCTV customers. The eZ.HD DVRs and cameras adopts the latest Analog HD technology, permitting excellent high-quality images of resolution up to 720P which is way superior to traditional analog CCTV. Moreover, it's easy to install and integrate with the existing CCTV systems, so this new eZ.HD video surveillance system will definitely prove itself a truly cost-effective solution. As for the mobile surveillance solution — one of EverFocus' long-recognized strengths — in this year, we will introduce a brand-new hybrid mobile DVR (EMV401/801/1601) which supports a combination of both IP and analog mobile cameras in order to have a wider range of application. Lastly, the access control products which have already gain a large market share in China will also be exhibited at Intersec 2015.

As a matter of fact, this year, we have another main emphasis – Genie XMS, EverFocus' open systems integration platform. It is well-designed with a scalable and modular architecture; therefore it can easily integrate with various applications according to different security objectives. Thus, scalability, flexibility and reliability are the defining factors of this platform which EverFocus will strongly promote at this event. To deliver this clear image to customers, all the product series mentioned above will be displayed in a way that everything is connected and can be all threaded through Genie XMS.

The Genie XMS will be run on our enterprise-level 8-bay rack mount Commander 2 ENVR8008 or the 4-bay tower Elite 2 NVR8004X which will connect all the IP-based devices including IP cameras, NVRs (ENVR8304E), hybrid mobile DVRs (EMV1601) and access control products, respectively demonstrating different functions and applications such as eZ Tracker, Access Control, the License Plate Recognition (LPR) and fleet management (xFleet).

Other innovations showcased this time include our hot-seller IP Sidekick (ESK1000), a small gadget to simplify your IP camera's viewing angle and focus adjustments on installation site, and the useful Palun, a PoE-powered Video Balun. It can transmit both power and digital IP video signal over coaxial cable from PoE device to IP camera so that you can simply use it to upgrade the surveillance system from analog to IP, leveraging the existing coaxial infrastructure without re-cabling.

We are very glad to introduce our flexible and scalable security solutions at the event. If you are interested in our products and solutions, please visit us at booth S1H-33C Intersec, in Dubai, UAE, during 18th to 20th January, 2015!

EverFocus releases hybrid mobile DVR EMV401/801/1601

EverFocus releases hybrid mobile DVR EMV401/801/1601

Editor / Provider: EverFocus | Updated: 11/10/2014 | Article type: Security 50

The latest EverFocus hybrid digital video recorder generation is based on H.264 compression technology, resulting in enhanced recording capacity and improved network image transmission speed with high image quality.

The hybrid mobile DVR EMV401 / 801 / 1601 can support 4 / 8 / 16 channels in combination of analog and IP cameras, (EMV1601 supports maximum 8 channels of IP cameras). EMV401 / 801 / 1601 can deliver and record at real-time WD1 resolution of each analog camera and real-time 1080p resolution of each IP camera.

Its comprehensive features along with the embedded 3-axis g-sensor function enable the almost universal application of this mobile DVR series. With EMV401 / 801 / 1601, you can install either one 3.5” hard disk or one 2.5” hard disk as an option. It supports various interfaces such as three USB ports / RS-485 / RS-232 / Panic Button / CAN bus / GPS, 3G, 4G and Wi-Fi Antenna. The design of RCA video/audio outputs at front panel makes your installation easy. The User Interface has been specially designed to fit mobile small-sized monitor.

EMV401 / 801 / 1601 are anti-shock and vibration due to the Molex connectors equipped. The power supply supports voltage regulator, and delay on/off. In addition, EMV401 / 801 / 1601 can be equipped with an explosion-proof black box to keep the last minute recording clip for testimony.

HD-over-coaxial: Ultimate battle for survival by analog manufacturers

HD-over-coaxial: Ultimate battle for survival by analog manufacturers

Editor / Provider: Alf Chang, a&s International | Updated: 10/23/2014 | Article type: Tech Corner

The overarching view in the security industry right now is that IP, which employs a network infrastructure and offers HD video, will one day replace analog solutions, which have defined video surveillance for half a century. For analog players, who are seeing declines in sales and revenue, they must find ways to regain their former dominance in the industry. HD-overcoaxial solutions, which deliver HD video over users' existing coaxial cabling, represent their ultimate battle for survival amidst the IP invasion.

Ever since 960H and HD-SDI emerged in 2011, video surveillance players have been trying to find solutions that enhance the quality of CCTV, which remains the mainstream surveillance technology. Analog cameras are inexpensive and easy to install, and they still dominate the market with 70 to 80 percent of market share. However, IP cameras are threatening the very existence of analog players, who are seeing a steady revenue decline. Against this backdrop, analog players seeking to survive have put intensive efforts into the R&D of high-resolution HD-over-coaxial solutions. HDCVI, HDTVI, ccHDtv, and AHD are the products of those efforts.

Any HD-over-coaxial solution, be it 960H, HD-SDI, HDCVI, HDTVI, AHD, and ccHDtv, must be easy to use over the end user's legacy coaxial cable. HD transmission should be achieved using 5C-2V (RG-59U) or 3C-2V (RG-6) coaxial cable without quality loss, and the traditional distance barrier of 100 to 200 meters must be overcome. The solution must incur no extra cost for installation or upgrade, resist quality loss over a long distance, and enable easy upgrade to megapixel-level HD surveillance. Further, it must be high in quality and competitive in price to gain a stronger foothold in vertical markets. In summary, for a solution to be called HD-over-coaxial, six basic requirements must be met:

1. It must have high video clarity and color separation, as well as high signal filtering, noise reduction, and image restoration capabilities;

2 .As HD-over-coax is claimed as a breakthrough technology, it must be able to transmit signals for a longer distance over existing coaxial cable;

3 .The solution must not be subject to latency, compression-related quality loss, or any compromise to video quality;

4 The backend equipment must be compatible with the 960H format, and future compatibility with analog splitters and matrix systems must be considered;

5. HD-over-coax must be easy to use and operate and allow settings on both frontend and backend equipment;

6. Any solution must have low cost and high quality.

There are HD-over-coaxial DVRs that can support both 960H and 720/1080p. These are called hybrid HD DVRs. There are even HD DVRs that are bolstered by Intersil's decoder chip and the TCP/IP interface to support 960H, 720p/1080p, and IP signals. These are called Tri-brid HD DVRs.

Compare and contrast between solutions
HDCVI, HDTVI, and AHD share one thing in common: as opposed to 960H that uses the CCD sensor, HDCVI, HDTVI, and AHD use the megapixel-level CMOS or Exmor CMOS sensor. The purpose is to capture HD images at the source level. Among manufacturers of CMOS sensors are Sony, Omnivision, Pixelplus, and BYD. The formation of images differs slightly according to brand.

Another similarity as far as components are concerned is the use of an image signal processor (ISP) in conjunction with the sensor. This device ultimately determines the final image displayed by HDCVI, HDTVI, and AHD solutions. The chipset could be integrated into the sensor module or into the transceiver at the backend of the HDCVI, HDTVI, or AHD camera. Image signal processors, whose manufacturers include Sony, Fullhan, Nextchip, and Eyenix, process and enhance images formed by the sensor. As ISPs of different companies are designed differently, they have different ways of handling backlight compensation, WDR noise reduction, and the 3As, namely auto white balance, auto exposure, and auto focus.

One final thing that the solutions have in common is the presence of a signal transceiver, which produces different signal formats based on the technology in question, namely HDCVI, HDTVI, and AHD. Regardless of the technology, these transceivers are similar in that they combine signal augmentation, voltage augmentation, and MCU all in one device and emit signals over different transmission distances. There is also a circuit switch that allows cameras to switch between HD-over-coaxial and CVBS output.

All HD-over-coaxial signals travel through coaxial cables, which can be 5C-2V (RG-59U) or 3C-2V (RG-6) for transmission of between 300 and 500 meters. Among the things that set them apart are the codec engine, which is made by TI, Hisilicon, or Grain Media, and the performance of ISP processing.

Application in verticals
Based on how things look right now, to popularize HDCVI, HDTVI, and AHD and widen their reach in different verticals, it seems manufacturers still have lots of publicity and marketing to do. In fact, I still have doubts over their market acceptance beyond the banking, financial, and retail verticals, as 960H and HD-SDI themselves are still mostly deployed in retail, banking, and education. It is my hope that fiber optic providers can develop and commercialize HD-over-coaxial interfaces, so that HDCVI, HDTVI, and AHD can go beyond small and medium implementations and find their way into city and highway surveillance, which requires HD and real-time video transmission.

Currently, there aren't any credible or authoritative figures on the market acceptance toward HDCVI, HDTVI and AHD. Yet, marketing strategies differ according to manufacturers and their OEM partners. Based on our observation, a lack of understanding of the different solutions is the biggest obstacle that manufacturers need to deal with right now.

Opportunities and future development
HD and intelligence are future development trends that analog players seeking to upgrade their HD products future, advances in CMOS, ISP, and transceivers will cause HD-over-coaxial surveillance to become a norm. Applications in different verticals will also become more noticeable. In security, there is a notion that IP will replace analog. But this will not happen anytime soon, and HD-over-coaxial marks the effort by analog players to at least slow the IP invasion and analog's decline. In the end, maybe there is a purpose for the existence of these solutions.


Sponsored by:  
Secutech, the annual international exhibition and conference for world-class manufacturers and discerning buyers of security products and solutions, will take place from 28 – 30 April 2015 at the Taipei Nangang Exhibition Center in Taiwan.
Now in its 18th year, secutech features some 500 exhibitors from 20 countries and attracts over 26,000 visitors. Dedicated pavilions for the following sectors: Surveillance | Software & Management Systems | Transmission & Networks | Smart Homes | Key Components / Parts | Electronic Systems

Register your FREE visitor badge now at www.secutech.com/registration/en

Hikvision and Western Digital host video surveillance seminar in the Middle East

Hikvision and Western Digital host video surveillance seminar in the Middle East

Editor / Provider: Hikvision | Updated: 10/20/2014 | Article type: Security 50

Hikvision, one of the global leading suppliers of video surveillance products and solutions, hosted a joint seminar with Western Digital, the global supplier of hard drives, at the Ramada Hotel in Dubai on September 18. The seminar was held to promote the latest technologies from both companies: Hikvision's Turbo HD Analog Solution and WD's Purple hard drives, attracting over 100 security professionals from more than 50 companies.

The seminar consisted of two segments. The first segment featured presentations of Hikvision corporate development and its successful vertical applications, as well as a live demonstration of Hikvision's Turbo HD Analog Solution.

As a top-notch technology, Hikvision's Turbo HD Analog solution proves Hikvision's dedication to R&D and technological innovation. It enables up to 500m HD video transmission over existing coaxial cable and offers seamless compatibility with traditional SD cameras, HDTVI-compliant cameras and DVRs, as well as IP cameras. During the demonstration, the attendees were impressed by the product's image performance, system compatibility and rich features.

During the second segment, experts from WD introduced their latest Purple hard drives. Designed specifically for video surveillance units, these hard drives excel in new and existing home and small business security environments with up to eight hard drives and up to 32 high-definition (HD) video cameras. Further advantages of the product include up to 4TB of hard drive space, making the WD Purple the largest surveillance drive on the market.

“This seminar was a great success. It helps our customers better understand Hikvision technical capabilities and solutions available in the Middle East market,” commented Max Wei, General Manager of the Hikvision Middle East branch. “We are excited to be co-marketing with WD to showcase our latest technologies and products, and we look forward to working together with them in the future.”

“The storage and integrity of video surveillance data is a crucial aspect of modern security systems. This joint seminar allowed us to demonstrate the unsurpassed reliability, quality and peace of mind that the WD Purple hard drive offers Hikvision and security professionals when storing their valuable video data,” said Khwaja Saifuddin, Senior Sales Director for WD Middle East, Africa & South Asia. “The drive is designed with exclusive AllFrame technology to reduce video data errors and video interruptions. It is also durable for today's 24/7 always-on video surveillance applications amidst harsh environmental conditions.”

Milestone Systems navigates new sales channels with Netgear and Zucchetti

Milestone Systems navigates new sales channels with Netgear and Zucchetti

Editor / Provider: Milestone | Updated: 10/7/2014 | Article type: Security 50

Milestone Systems has just announced a close relation with Netgear enabling over 10,000 Netgear resellers and more than 2,400 partners to sell solutions with Milestone XProtect. Moreover, Zucchetti is now a certified Milestone access control partner, which allows Netgear partners to deliver complete physical security information management (PSIM) solutions.
Netgear designs the network infrastructure capable of supporting IP security from small-sized businesses to large corporate surveillance systems with up to 1,000 cameras. Solutions based on the Netgear infrastructure are flexible and reliable, offering a solid base for building dependable security solutions. This allows Netgear partners to introduce more powerful solutions to the Italian market based on the benefits of Milestone products:

• Milestone XProtect VMS is powerful, reliable and easy to use, having proven itself in more than 100,000 installations worldwide. Based on a true open platform, XProtect enables integration with the industry's widest choice in cameras and best-in-class business solutions, such as access control and video analytics. The software is compatible with more than 3,000 encoders, IP cameras and digital video recorders (DVRs), from almost 150 different suppliers worldwide. Milestone strives to continuously increase its compatibility with new devices. 

XAtlas , the multi-platform security management system designed by Zucchetti Axess, allows access control integration, workplace security, time and attendance data collection, anti-intrusion and firefighting integration, video surveillance, vehicle transit management and company canteen and parking management.

"This partnership is very exciting to us, as it opens a whole new channel for us. Italian IT professionals will be able to use a world-class network infrastructure component and access control software to build value-filled PSIM solutions using leading open platform video management software," says Claus Rønning, Director Southern Europe & DACH, Milestone Systems. "The ability to integrate Zucchetti's and Netgear's extensive partner network into the Milestone partner ecosystem will expand our combined market reach. This is truly a forward-looking partnership"
The new partnership is already stirring up excitement at Netgear and Zucchetti. "Netgear is synonymous with quality and reliability. We are confident that all Netgear partners will seize the opportunity to increase their skills in the field of security, providing solutions that include Milestone video management system. We are also confident that the market will surely obtain benefit from this collaboration, "says Stefano Barbieri Regional Sales Director CBU, Netgear Italy.
"The benefits for end users will be remarkable, starting with the fact that the access control functionalities of Xatlas software will be directly accessible through the XProtect platform interface, with modular and scalable settings, according to specific requirements" stated Domenico Uggeri, Zucchetti Vice President.

Chicago McCormick Place enhances surveillance control with Axis solution

Chicago McCormick Place enhances surveillance control with Axis solution

Editor / Provider: Axis | Updated: 10/3/2014 | Article type: Government & Public Services

Mission
McCormick Place, the largest convention facility in North America, had been using analog surveillance equipment for more than 25 years. All that changed when they opened the state-of-the-art West Building in 2007. The new exhibit hall boasted more than 300 advanced Axis network cameras covering 800,000 square feet of space. Noting the contrast between the analog and IP-based systems, the convention center began looking for a way to increase the performance of their legacy investment and integrate it with their new digital technology.

Solution
With the help of Johnson Controls, an Axis National Systems Integrator partner that provides building security services for McCormick Place, the venue used Axis video encoders to network-enable hundreds of analog cameras in the North and South Buildings and the Lakeside Center. Once the video streams were digitized, the analog cameras could be managed under the same Milestone XProtectR Enterprise video management software (VMS) as the new, high-resolution Axis network cameras.

Result
Even with reusing their existing analog cameras, the video resolution delivered by the Axis encoders far exceeded the image quality security was able to get from its old DVRs. With clearer forensic evidence from their analog cameras coupled with high-resolution video delivered by new Axis cameras, the staff has been better able to investigate incidents and prosecute offenders. Additionally, with an all-IP backbone, McCormick can now utilize more advanced analytics, such as BriefCamR Video SynopsisR software, to compress hours of video into a minutes-long synopsis.

When one head is better than two
McCormick Place is a bustling hive of tradeshow activity. A typical convention attracts 10,000 to 12,000 attendees, and a big tradeshow could draw as many as 100,000. During its busiest season, McCormick Place might be hosting up to four different conventions simultaneously. The security team must remain alert to keep the thousands of attendees and vendors safe. When McCormick Place opened its West Building, the convention center's footprint increased to more than 2.5 million square feet. Though the new wing was equipped with the latest Axis IP surveillance technology governed by Milestone XProtectR Enterprise VMS, the rest of the facility remained reliant on legacy analog cameras attached to DVRs running a separate VMS. “It was ridiculous to have control room operators looking at two different software interfaces to view video,” said Frank Solano, Security Systems Engineer for SMG, the management company that oversees McCormick Place. SMG decided to integrate all the cameras into a single system. They retired their DVRs and network-enabled existing analog cameras with one-channel AXIS Q7401 Video Encoders and four-channel AXIS Q7404 Video Encoders. The digitized video from all cameras now streams live to a massive video wall in the convention center's 24/7 command center. They are also able to store additional video footage in their Dell Quad-10 servers for later retrieval.

A better alternative to “rip and replace”
The Axis video encoders offered a way for McCormick Place to extend the life of its analog investment and provided several added benefits. “The big clincher for us was resolution,” Solano said. “With the DVRs, we couldn't get anything better than 4CIF [704x420] from our analog cameras. With the Axis encoders, we can tweak resolution and frame rate for the cameras in the Milestone VMS to achieve much higher image quality within the bandwidth we've allocated for video traffic.”

Remote management and video intelligence
Using AXIS Camera Management software, security engineers can remotely diagnose and troubleshoot all equipment, including analog cameras, as well as make configuration changes to ensure that surveillance traffic does not affect other network activity. Because the IP system is based on an ONVIF open standards platform, McCormick Place can now leverage sophisticated video analytics across its entire hybrid surveillance network. For instance, BriefCam Video Synopsis software compresses hours of video into just a few minutes enabling security to focus quickly on the key footage. BriefCam is integrated fully with the Milestone XProtectR Smart Client interface. According to Mark Eggerding of Johnson Controls, “The 60:1 compression ratio helps McCormick Place security discover patterns and sometimes forestall incidents of property damage and theft.”

A massive transformation in convention surveillance
With such a massive venue to protect, McCormick Place is continuing to expand their use of Axis network cameras. AXIS P5532 PTZ (pan/tilt/zoom) Network Cameras monitor the lobby while 1080p HDTV resolution AXIS Q6035 PTZ Network Cameras watch the busy general concourse. For offices, utility closets and liquor storage cabinets, Johnson Controls installed 720p HDTV-quality AXIS M1054 Fixed Network Cameras, and uses pinhole-sized AXIS P1204 Network Cameras with HDTV video for covert surveillance.

“With manpower alone, it would take an army to keep the buildings secure and provide a safe environment for our exhibitors, attendees and employees,” Solano said. “That's why our surveillance cameras are such vital tools. The more eyes we have on the exhibit floor, front of house, corridors and back hallways, the more vigilant we can be.”

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