Digital video recorders (DVRs) Comparison: IndigoVision, Dahua Technology  (4)

 
Channels
16
4
4
16
Monitor Outputs
1
--
--
--
Storage Capacity GB
2000
4096
4000
6000
Image per second (IPS)
30
30
25 fps
25/30 fps
Hybrid IP inputs
--
4
--
--
Compression Type
--
H.264
H.264
H.264+/H.264
Resolution
--
1920 x 1080
1920 x 1080
1080P
External Storage
--
USB
--
USB
Audio Recording and Properties
--
G.711
--
--
IP Storage rate (fps)
--
30
--
--
Signal Mode
--
--
PAL / NTSC
--

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Latest Digital video recorder (DVR) case studies

IndigoVision’s IP Video Solution Guards The Grand River North West Remand Prison In Mauritius
IndigoVision’s IP Video Solution Guards The Grand River North West Remand Prison In Mauritius

IndigoVision installed fifteen 9000 PTZ cameras and 104 analog cameras The Grand River North West remand prison in Mauritius has vastly improved security by upgrading its CCTV system with IndigoVision's IP video solution. IndigoVision's local partner Brink's (Mauritius) Ltd worked with the prison's management team to identify the ideal solution to make sure all parts of the prison could be seen, and incidents spotted immediately. Fifteen 9000 PTZ cameras and 104 analog cameras have been put in place, connected to six NVR-AS 3000 Network Video Recorders and 104 standalone transmitter/receivers. Recording is 24/7, and retained for two months. Activity Controlled Framerate (ACF) is used, with a bitrate of 512kbps for recording. The IndigoVision network now covers every single area of the prison, and gives greater coverage inside and out than the previous network. IndigoVision's integrated motion detection, alarms and mapping is also a major advantage, letting operators quickly spot problems and identify exactly where things are happening, while playback of recordings is easy and immediate. "The IndigoVision network gives a real bird's eye view of all that's happening inside the prison - in rooms, corridors and gathering areas, and also outside in the parking lots and round the perimeter - while the alarms and motion detection make sure nothing is missed. It's a vast improvement on security, with two remote control centres ensuring maximum security control in all areas," says Brink's Mauritius project manager Vikash Augnu.   IndigoVision's IP video solution was chosen for its ease of use, stability and reliability Workstations are located in the prison's main Control Centre and also in the main gate and towers. A new network LAN has also been installed, using both fibre and FTP cables. The compact NVR-AS 3000 Network Video Recorders have a small footprint but are powerful recorders. They can record up to 20 cameras at full frame rate with audio and simultaneously play back up to 20 cameras, with extremely low power consumption and heat dissipation. ACF controls the framerate of the camera video stream based on the amount of motion in the scene. When there is no activity, video is streamed over the network at minimum framerate. The instant motion is detected the video is automatically transmitted at the maximum configured framerate. This significantly reduces the bandwidth and NVR storage requirement for cameras monitoring generally static scenes or during quiet periods such as at night. IndigoVision's technology was chosen because it is simple to use, and known to be stable and reliable. The tough environment needed a robust solution that was easy to install and maintain. Image quality was also a key factor for guards monitoring a large number of prisoners.

MetrôRio Use IndigoVision IP Video To Protect The 700,000 People Who Travel On Its Network
MetrôRio Use IndigoVision IP Video To Protect The 700,000 People Who Travel On Its Network

MetrôRio, Rio de Janeiro’s metro system, has chosen IndigoVision to supply a complete IP video security solution to protect the 700,000 people who travel daily on its network and to allow for future expansion of the metro service. IndigoVision won the contract to replace MetrôRio’s ageing analog surveillance system because of the superior image quality of the IndigoVision cameras, which makes for precise identification of individuals in recorded images, coupled with the flexibility of the IP system, which can be easily scaled up as the metro network grows.    Mr Newton Werneck, CIO of MetrôRio stated: "IndigoVision's image quality is excellent and the distributed architecture of the system will allow the surveillance network to grow along with the metro system." Another crucial factor in winning the business with MetrôRio is the system’s highly efficient and economical storage capability. Compared with other IP video systems, storage requirements are significantly reduced thanks to IndigoVision’s advanced compression technology and the use of the unique Activity Controlled Frame rate (ACF) feature, which is built into the IP cameras. ACF regulates the frame rate of the video stream according to the motion in a particular scene. When there is no activity, video is streamed at minimal frame rate; the instant any motion is detected, video is simultaneously transmitted at the maximum configured frame rate.  This responsiveness provides both greater detail for analysis and also allows for economy of data storage.  The IndigoVision system also provides MetrôRio with improved event archives and content distribution across its network: IndigoVision’s unique distributed architecture eliminates the need for a central server, which means that the surveillance system can expand quickly and as required. IndigoVision’s Brazilian partner Setha Prosegur worked with MetrôRio to create the surveillance system, which includes 141 fixed IP cameras, 21 PTZ cameras and approximately 700 existing analog cameras that have been integrated into the system using IndigoVision encoders. An IndigoVision NVR-AS 3000 (network video recorder) is in place at each station, with back-up provided between stations. Founded in 1979 with five stations operating on one line, MetrôRio now covers 47km (29 miles) divided into two lines and 35 stations. The network continues to grow with a further line under construction and due for completion in 2016.  

Hikvision’s Hybrid Solution Secures Türk Telekom Infrastructure
Hikvision’s Hybrid Solution Secures Türk Telekom Infrastructure

The solution includes Hikvision DS-9016HFI-S DVR, analog and IP cameras and iVMS-4200 Client software Türk Telekom Group is Turkey's world-class, integrated telecommunication and technology services leader that offers its Turkish customers a complete range of fixed line, mobile, data, and internet services. Türk Telekom, as well, is Turkey's only integrated telecommunications service provider that owns the nation's conglomerate of leading regional communication and technology companies. However, impressive as this is, with Turkey's various topographical challenges, the issue of successfully overcoming equally impressive logistical hurdles was paramount. In this vein, Türk Telekom enlisted the services of security solution installer Kent Güvenlik Sistemleri A.S. to provide security for the 240 Türk Telekom rural wireless cellular sites throughout the country. Turkey's geographical challenges As earlier noted, these 240 sites were not solely located in metropolitan areas such as the nation's capital of Ankara or the commerce center that is Istanbul. Instead, many of these locations were scattered within scarcely populated and difficult-to-reach spots (including, but limited to, high in the mountains). As many of these sites are unmanned, security for this infrastructure was a natural concern. These centers, called "rural control rooms" serve to connect the cities to the mountains and vice-versa through cellular means. Additionally, with Turkey's propensity for earthquakes, cellular communication has taken on a higher national priority. In fact, most communication from rural mountain areas to major metropolitan centers is now primarily achieved through cellular means. The Kent Güvenlik Sistemleri A.S. solution Since the dynamics of this project were based on cellular technology, "the decision was made to use a c for this particular large-scale project," noted Erdogan Tekin, Technical Manager at Kent Güvenlik Sistemleri A.S. After careful analysis of the specific demands this solution required, Mr. Tekin chose a combination of following Hikvision products. The first is DS-9016HFI-S Embedded Hybrid DVR. The reality that Türk Telekom is a very large, long-standing company denoted that there are both analog and IP cameras in various capacities throughout Turkey. Güvenlik Sistemleri A.S. knew the DS-9016HFI-S worked exceedingly well with both types. The second Hikvision tool is the DS-2CC1182P-A 600 TVL Box camera. Mr. Tekin explained, "The DS-2CC1182P-A's durability was very, very important for this project. Due to the fact that many of these sites were in the mountains, this presented a dual problem. The first was the weather environment - it has massive shifts in extreme climate, including heat, wind, and bitter cold. The second was the inaccessibility of these sites. If a camera broke down, there really isnot a realistic way to get a repair technician up there. Due to both concerns, the DS-2CC1182P-A's IP66 rating and Hikvision's reputation for quality and durability were extremely important." "The DS-2CC1182P-A's durability was very, very important for this project. Due to the fact that many of these sites were in the mountains, this presented a dual problem" The TV0309D-IR Lens was the third piece to this solution. Interestingly, before Kent Güvenlik Sistemleri A.S. chose this model, the company tested many other brands. After this testing, they found that no other brand offered the same high results: namely the night time LED performance was nowhere near as clear, and the TV0309D-IR resulted in much sharper IR images. Additionally, as with the DS-2CC1182P-A 600 TVL Box Camera, since both are located in rural mountain-top areas, the quality of these DVRs is vital to ensure that the necessary images are sent to security personnel in Ankara, and their Ankara-based PCs to monitor these stations. The same requirement holds true with DS-9016HFI-S's large 8 HDD memory. "In wintertime, it is virtually impossible to arrive at these sites, regardless of circumstance," added Mr. Tekin. The final piece of this solution puzzle is iVMS-4200 Client Software. This software allows the connection of all Hikvision hardware. In this Turkish case, all 240 sites - and their Hikvision hardware - are connected through managers' PCs. Mr Tekin elaborated, "Every major city in Turkey is using this client software. In this fashion, Ankara is connected to each of these cities and to each of these 240 rural sites through this convenient software program." Through this combination of Hikvision technology and versatility, even Turkey's formable mountains proved little match. And through this combination, the Türk Telekom Group's rural sites are secure.