CCTV Digital Video Recorders (DVRs)

According to IHS Market, it is estimated that there are over 60 million security cameras in the United States, and other reports say these cameras capture more than four billion hours of footage per week. Over the last decade, IP camera technology has dominated the conversation as it has provided users with a broad offering of enhanced image quality and features. With a large percentage of existing security systems relying on analogue, many end users looking for high definition (HD) video quality have been forced to take on a complete system overhaul. Infrastructure overhaul for HD video To make the switch, customers would need to change everything, from cameras to hardware to wiring– not to mention the lengthy installation process that would ensue. IP cameras also require higher Internet speeds and more cloud space. Whether constrained by budget, bandwidth or storage, many end users have been unable to adopt this new video surveillance method.Thanks to technological advancements within the security industry, HD over Coax offers a viable solution for integrators and end users alike Thanks to technological advancements within the security industry, HD over Coax offers a viable solution for integrators and end users alike. By utilising the current Coaxial cables, this offering yields high definition video, while requiring minimal infrastructure changes and is an optimal surveillance choice for security customers. Plus, with new advancements and updates being made frequently to this technology, there is a solution for every security need. The enhanced alternative of HD over Coax has been warmly welcomed in the security industry, thanks to its simple solutions and ever-evolving features. Many new analogue HD cameras are “plug and play,” able to connect directly to existing Coaxial cables. This eliminates the need for a complete system change, creating cost-savings for the end user and an enhanced video quality offering. Easy solutions for HD video As a result, integrators can cost-effectively upgrade their customer’s surveillance solution while using their legacy infrastructure, making it an attractive option for end users and an easy sell for dealers. Latency in video is another common issue with network-based camera systems, where even the slightest delay in video surveillance can hinder security response HD over Coax cameras themselves are always expanding and evolving to meet a wide array of security needs. With the introduction of fisheye and multi-sensor cameras, users now have a multitude of coverage options, not to mention the introduction of 4K bringing resolution options to the same level as IP. Some newer technologies are even touting 4K cameras paired with 4K digital video recorders (DVRs) made specifically for analogue systems. Longer cables grant transmission for up to 1600 feet, double the distance of standard analogue solutions, and triple that of IP systems. This single cable is able to transmit both HD video and audio. Recently, broadcast quality audio over Coax has become available in limited models, a substantial improvement over older analogue technology, which was unable to transmit audio. Stopping video delay Latency in video is another common issue with network-based camera systems. Even the slightest delay in video surveillance can hinder security response. IP cameras are forced to compress and packetise their video for transmission. The outcome of this is a reduced number of images per video, which in turn causes delay. HD over Coax on the other hand, delivers an unlimited amount of HD images in real time, with smooth motion and impressive clarity. Additionally, the point-to-point transmission delivers uncompressed video free of lag. Another touted benefit is that, unlike IP networked cameras, analogue systems provide a more secure video transmission. With so much sensitive information housed on a businesses’ network, adding another point of network access through an IP camera can create concerns for cyber security risks. HD over Coax delivers an unlimited amount of HD images in real time, with smooth motion and impressive clarity Preventing network hacking With HD over Coax, the physical connections between the camera and DVR prevent network hacking. By keeping the video surveillance system offline, security professionals are able to direct their attention to the physical threats at hand, rather than having to focus on deterring cyber security risks. One of the primary difficulties of deploying HD video solutions is the fact that many older systems utilise a wide variety of HD standards and platforms. To make matters more complicated, after HD over Coax was brought to market, manufacturers raced to create their own version of this technology. Today, the most popular proprietary standards are HD-CVI, HD-TVI and AHD. However, integrators and customers found that attempting to manage multiple HD technologies proved to be near impossible.Integrators and customers found that attempting to manage multiple HD technologies proved to be near impossible Diversifying surveillance through one DVR To combat these issues, manufacturers have introduced products with more flexibility to their portfolios. One example of this is the penta-brid DVR which grants the ability to seamlessly integrate multiple technologies deployed across one application. This means that systems with diverse camera brands and technologies, such as a mix of HD-CVI, HD-TVI, AHD, analogue or IP, can be connected through one DVR. For many end users with legacy analogue systems, penta-brid DVRs give them greater freedom to choose between a variety of solutions, rather than being limited to one option. With video resolution increasing, the space needed to store the footage is similarly rising. Penta-brid technology has been able to adapt to these evolving needs, giving users ample storage space to house the HD and 4K surveillance video with some of the newest models including H.265 compression.  HD casino surveillance made simple For casinos, HD images are critical for identifying unauthorised personnel and unlawful behaviours to create a safe environment for guests and staff While HD over Coax is beneficial to many end users and integrators, those in the casino and hospitality markets find it crucial. With a combination of high profile guests, large amounts of cash on hand, constant crowds and strict industry regulations, reliable video surveillance is a must. Deploying new IP systems comes at a stiff price. When looking to upgrade their video surveillance, casinos must also be mindful of the installation process. When moving to an IP-based system, ripping out old wires and replacing them with new is the standard practice. This practice can be both disruptive and costly, not to mention gaming regulations require casino activities be monitored at all times so a complete system shutdown would result in revenue loss. This cost can be hard to justify, especially when the current legacy analogue system remains in working condition with only the lower image resolution to date it. For these scenarios, the most cost-effective option is to leverage the legacy infrastructure, replace the existing cameras with new devices, and reap the benefits that HD video has to offer without any lapse in security. For casinos, HD images are critical for identifying unauthorised personnel and unlawful behaviours to create a safe environment for guests and staff. HD over Coax cameras now offer the same resolution as IP cameras with a plug and play approach, that cuts down on expense without sacrificing quality. For businesses and applications that are unable to adopt IP technology, whether it be cost or time prohibitive, HD over Coax now features most of the same benefits IP has to offer without breaking the bank. By providing clear images in real time, maximising existing infrastructure, and affording cyber security benefits, HD over Coax provides an attractive solution for many end users and integrators.

Dollars spent by video surveillance customers must go towards ensuring high-availability capture, storage and on-demand access to live and archived video. Reaching this goal mandates high-availability of independent components – camera, network, storage (edge, external), internet connectivity, display, all Video Management Software (VMS) components and an architecture that can take advantage of this. In this note, we focus on seeing our way through to a video surveillance architecture, that provides high availability storage, access to live and stored video content. Of all options available to store recorded video, edge recording is the only one that is unaffected by network failure Edge recording Of all options available to store recorded video, edge recording is the only one that is unaffected by network failure. This makes edge storage a must-have. But, this has some limitations at present: Edge storage capacity is limited. Edge media has a short lifetime, rated only for thousands of hours of continuous recording. Most cameras are not secure and physical damage to the camera could lead to catastrophic loss of edge stored content. As storage and compression technology evolve, the constraints imposed by (1) and (2) could go away. However, securing cameras will continue to be a barrier for most installations. Secure external storage It is thus imperative to also store video in secure external storage. Such an architecture uses edge storage to fill in content gaps created by network, external storage outages. As edge storage technology improves, larger gaps can be filled in, but one will always need external storage. By our definition, ‘external storage’ is a solution stack that includes storage media and all software (including VMS) that provide access to this storage. Access to live and archived video Access to live video can either be met by external storage or directly by the camera Every surveillance solution needs to provide access to live and archived video. Access to live video can either be met by external storage or (and) directly by the camera. All things being equal, having the camera directly provide live video access, is a higher-availability solution. There is dependence on fewer components in the chain. Solutions in the market use one of the above two approaches for access to live video. Due to limited capacity and low physical security of edge storage, it makes sense at present, to have external storage meet all requests for archive video. Thus, we are led to an architecture that has heavy dependence on external storage. Dual-recording For high-availability, external storage must be architected with redundancy. Ideally, independent components that make up external storage – storage media, associated hardware and software (including VMS components), should be individually redundant and have smart interconnectivity. However, solutions in the market rigidly tie these components together. Failure of a single component causes failure of external storage. For e.g. hardware failure of a server causes VMS component failure AND storage failure. DR provides a smart way to provide high-availability for external storage For these solutions in the market, high-availability is achieved by having additional external storage units that step-in during outages of primary units. If these additional units continuously duplicate primary units, access gaps are minimised, and archive access is un-affected during primary unit outages. This is the idea behind Dual-Recording (DR).  To meet cost budgets, these additional units can be configured to store subsampled (framerate, resolution) video content. A small number of additional units can support concurrent outages of all primary units. A few-to-many redundancy. Rising need for dual-recording Most cameras cannot be physically secured, and video content produced by a camera must be stored externally. Many VMS solutions use external storage to service live video access requests. Edge storage limitations impose restrictions on edge archive access at present. So, external storage is used to service requests for archive access too. Thus, a surveillance system ends up being over-dependent on external storage. DR provides a smart way to provide high-availability for external storage. As edge storage improves, it will be able to service archive access requests. VMS software will need to evolve, to use this capability smartly.

Over the course of the past few months, I have discussed a myriad of topics, from Big Data, the Internet of Things and emerging video surveillance-use cases, to analytics, storage complexities and IT technologies like virtualisation and hyperconverged infrastructure (HCI). All of these trends have a significant effect on the security market, and in April they were highlighted in spades at ISC West. It’s great to talk about these trends but it’s far better to see how they are being leveraged in real-world applications. That’s really where we can all see the true value of new solutions and concepts. We’re lucky enough to work with some leading organisations that want others to benefit from their experience and I’m happy to have the opportunity to share two of these applications with you. Protecting educational facilities UCF has adopted advancements in technology, particularly video surveillance solutions, to help ensure stronger security on campus Educational institutions face an increasingly complex risk environment. Recent high-profile incidents emphasise these risks and magnify the vulnerabilities that educational facilities face. These incidents have led to more public demand for improved security solutions across campuses. The primary mission of these organisations is to deliver quality education to students, and they face the challenge of balancing between a highly secure facility and one that supports open interaction. The University of Central Florida is no different. This organisation, one of the largest universities in the country, has adopted advancements in technology, particularly video surveillance solutions, to help ensure stronger security on campus. Active shooter incidents In March 2013, UCF faced an active shooter situation in which a former student planned to pull the fire alarm in a residence hall and then attack his classmates as the building was evacuated. However, the shooter’s gun jammed, and as officers were closing in on the gunman, he took his own life. During the university’s response to the incident, accessibility to critical video data was a major issue. Educational institutions face an increasingly complex risk environment UCF had cameras in the area where the incident took place, but first responders had no way of viewing the footage without being at the physical location of the video recorder. At the time, UCF had a wide variety of standalone systems in place, including non-integrated video surveillance, access control and intrusion systems. As a result, there was no way to centralise video management, viewing and analysis. Upgrading from analogue systems Altogether, its security system consisted of older analogue platforms that were reaching end of life, 58 standalone servers, 12,000 access points and a wide variety of DVRs — all being managed in a siloed manner. UCF needed a solution that would allow officials to centralise system management, store video data more effectively and reliably, and enable the security team to deliver situational awareness to responders when needed. Security leaders sought a way to further modernise its security, surveillance, access control and IT infrastructure The university deployed an HCI solution, one that is optimised for demanding, data-intensive workloads like video surveillance. Using standard off-the-shelf server hardware, the system aggregates the storage and compute resources from multiple servers into a single unified pool that all cameras can access, which maximises performance and storage capacity utilisation. The platform also hosts the university’s video management solution, which serves as a centralised source to manage video and effectively protect its security data. Because of the growing demand for video across UCF's campuses — for both safety and business purposes — the HCI solution’s ability to eliminate the opportunity for data loss and easily scale were key components in its selection. Protecting air travel and airports In 2012, Charleston International Airport embarked on an ambitious upgrade project dubbed the Terminal Redevelopment and Improvement Program. The $200 million initiative was designed to modernise and expand the facility to meet increased passenger demand. While the aesthetics and amenities of the airport were under construction, security leaders sought a way to further modernise its security, surveillance, access control and IT infrastructure. The IT and security teams needed to address the challenges of their existing standalone server environment, which included siloed systems, management complexity and high administrative and equipment costs. Charleston International Airport embarked on an ambitious upgrade project dubbed the Terminal Redevelopment and Improvement Program Considering the high value of the airport’s video, security and IT data, it required a solution that could deliver reliable data protection, system resiliency and fault tolerance. The airport is required to store video for 30 days, but it seeks to expand its retention time to 60 days. Therefore, technology that can scale simply was key in the selection process. Storage system updates It also required a storage platform that could manage the demanding and write-intensive nature of its nearly 250 IP surveillance cameras — a challenging task for traditional video recorders. The airport deployed HCI appliances to better manage captured video data and expand its archive capability for video surveillance. Users rely on video to validate whether something did or did not happen - and this is essential in airports HCI surveillance solutions are designed to provide industry-leading resiliency. Even if multiple hardware failures occur, including an entire appliance, video management servers will remain online and recording, and any previously recorded video will continue to be protected and accessible. Reducing expenses and costs The solution also reduced total cost of operations by consolidating servers, storage and client workstations into one enterprise-class solution that is easily managed from a single user interface, without the need for specialised IT skills. These use cases demonstrate the value emerging technologies bring to these types of modern environments. And they show that solutions like HCI are no longer simply much-talked about technology trends. Video, IT and security data is critical to organisations of all types and they need to ensure their investment in capturing this data is protected. From a security standpoint, users rely on video to validate whether something did or did not happen. If that video data isn’t protected, they lose a very valuable investigative tool. That isn’t an option in today’s complex environment. That’s is why it is paramount to understand how new technologies can help expand current capabilities and evolve security operations. This can’t be left to chance.