HD Over Coax Provides Cost-effective Video Surveillance Upgrade

Download PDF version

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 analog, 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 analog 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 analog systems.

Longer cables grant transmission for up to 1600 feet, double the distance of standard analog 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 analog 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 packetize 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, analog 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 was brought to market, manufacturers raced to create their own version of this technology

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 utilize 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, analog or IP, can be connected through one DVR.

For many end users with legacy analog 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 unauthorized 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 analog 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 unauthorized 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, maximizing existing infrastructure, and affording cyber security benefits, HD over Coax provides an attractive solution for many end users and integrators.

Download PDF version Download PDF version

Author profile

Jennifer Hackenburg Senior Product Marketing Manager, Dahua Technology USA Inc.

In case you missed it

Are Privacy Concerns Stifling Innovation in Security?

Facial recognition is the latest technology to be targeted because of concerns about privacy. If such concerns cloud the public perception, they can be harmful to technology markets. Whether the concerns are genuine or based on misinformation is often beside the point; the practical damage has already been done. But beyond market demand, what is the impact of privacy concerns on technology innovation? We asked this week’s Expert Panel Roundtable: Are privacy concerns stifling innovation in security and related markets?

Building Security: How Audio Tells the Whole Story

Every building starts with the entrance. A solid enterprise risk mitigation and security strategy include protecting that entrance. Often, risk mitigation strategies protecting the entrance have included high-resolution video surveillance cameras, video management systems, and access control solutions. But that strategy and set of security solutions only tells part of the story. Imagine a security guard who is protecting a facility after hours, when an individual approaches the entrance and seeks to gain access. The security guard can pull up the video surveillance feed and see the individual and his movements, which appear to be suspicious. But he also needs to hear him in order to decide the next decisions and actions. Does he escalate the situation, calling for backup and for first responders’ response, or does he allow the individual access to the building because he works there and is authorized to enter? Meet high-definition voice What the security guard needs is to be able to hear and to communicate with that individual. All enterprise security systems need three primary components in order to successfully protect the entrance and to mitigate risk – access control, video surveillance, and the ability to hear and communicate. Each component plays an integral role in supporting a unified security system, and without all three, the security system is not complete. Access control can be thought of as the brains of a security system by holding data and permissions. It serves as the arms and hands of the system; it can either keep someone out or invite them in. IP video allows a security team to remotely position a set of eyes anywhere an IP camera can be placed on a network. With a video management system, security teams can see what is happening and decide how to respond. However, with remote viewing, the event may be over by the time security physically responds. Audio adds interactivity That three-component enterprise security system – comprising IP video, access control, and high-definition voice working together mitigates risks and provides value. It also means that security is interactive. Security teams talk and listen to the person that’s seen on a video surveillance system, no matter where the location or how remote. If the person is lost or simply needs assistance, security personnel can talk to them and provide direction and reassurance. Even more, in an emergency, an interactive solution becomes a critical life-saving tool, as it provides data that can be shared between security, police, emergency services, and more. Audio can also detect voices, noises, breaking glass, or other sounds that are not within direct view of a video camera. An interactive security system creates an informed response, by providing real-time situation awareness management. Post-event, it supports forensics and investigations to mitigate future security incidents. Audio and COVID-19 We are living in extraordinary times. As businesses begin to reopen and stay open, they are looking for any tools that can help them overcome the enormous challenges they face. In buildings and facilities, the COVID-19 pandemic has created a new security perimeter, one that demands contactless access with entry and exit, and that has also created a new duty of care for security professionals. Now more than ever is the need to interact and communicate with individuals moving in and out of doors and spaces without physical intervention. Intelligent communications, integrated with contactless access control, can help a business to comply with pandemic safety guidelines and ultimately, reopen for business and stay open. COVID-19 has also increased the need for clean-room isolation and quarantine spaces, sometimes in areas not originally intended for that use, where risk of infection is high, and equipment must be easily disinfected between patients. Here, purpose-built cleanroom intercoms, providing clear touchless communications despite the noisy environment, have emerged as critical tools for enabling patient care while reducing the need to enter the contaminated space. For example, voice communication can enable hospital staff to verify identity and to communicate with patients without entering the isolated and infectious environment, which can save on personal protective equipment (PPE) and reduce the amount of exposure to the virus. In non-emergency healthcare facilities, such as medical centers, voice can effectively relay information to building occupants and visitors for screening purposes. Visitors can be seen and heard. For example, a patient who seeks access to a medical center for an appointment can hear important instructions from a nurse via the intercom solution. Seeing the person that you talk to is one thing but hearing them conveys a much better sense of closeness, making it possible to maintain a high level of security and customer service. The whole story Today’s security systems should no longer simply involve video surveillance cameras generating feedback and images to a security guard. Instead, a new ecosystem for enterprise security and risk mitigation has emerged, and it’s one that involves video surveillance, access control, and high-definition voice. That ecosystem can ensure well-rounded and responsive information management and security platform, all communicating with each other and offering actionable insight into risks and potential physical breaches. Audio is the new value hub of the connected and intelligent school, campus, building, correctional facility, and more. Simply put, a silent security system cannot be an effective security system. In every situation, it is crucial for all security professionals to mitigate risk, no matter what they are protecting. This emphasizes the need to hear, be heard, and be understood in virtually any environment.

Inclusion and Diversity in the Security Industry: ‘One Step at a Time’

Historically, concerns about inclusion and diversity have not been widely discussed in the security market. In the last couple of years, however, the Security Industry Association (SIA) and other groups have worked to raise awareness around issues of diversity and inclusion. Specifically, SIA’s Women in Security Forum has focused on the growing role of women in all aspects of security, and SIA’s RISE community has focused on “rising stars” in an industry previously dominated by Baby Boomers. The next generation of security leaders There is a business case to be made for diversity and inclusion, says a report by McKinsey & Company. According to the management consulting company, gender-diverse companies are 24% more likely to outperform less diverse companies, and ethnically diverse companies are 33% more likely to outperform their less diverse counterparts. Furthermore, the “next generation of security leaders” – employees under 30 – are particularly focused on diversity and inclusion. Diversity refers to the traits and characteristics that make people unique A panel discussion at ISC West’s Virtual Event highlighted aspects of inclusion and diversity, starting with a definition of each. Diversity refers to the traits and characteristics that make people unique. On the other hand, inclusion refers to the behavior and social norms that ensure people feel welcome. “We are all on a journey, and our journey takes different paths,” said Willem Ryan of AlertEnterprise, one of the SIA panelists. “There are opportunities to improve over time. We can all change and increase our ability to have a positive impact.” Industry responsibility The industry has a responsibility to the next generation of industry leaders to address issues of inclusion and diversity. Forbes magazine says that millennials are more engaged at work when they believe their company fosters an inclusive culture. So the question becomes: How do we unify and create opportunities to work with and champion tomorrow’s leaders? SIA is driving change in our industry to achieve that goal. More women are active in SIA than ever before. The SIA Women in Security Forum now has 520 members, said Maureen Carlo of BCD International, the SIA Women in Security Forum Chair and another panelist. Also, more women than ever are chairing SIA committees and serving on the SIA Board of Directors. More women than ever are chairing SIA committees Overcoming unconscious bias Former SIA Chairman Scott Shafer of SMS Advisors, another of the panelists, noted that SIA awarded the Chairman’s Award to the Women in Security Forum in 2019, and to the RISE community steering committee in 2020. “There are lots of ways we are seeing the elevation of women and ethnic groups in the security industry,” said Shafer. One topic of interest is the problem of “unconscious bias,” which can be overcome by looking at something through some else’s lens. Ryan suggested use of the acronym SELF – Slow Down, Empathize, Learn, and Find commonalities. Ryan recalled the value of being mentored and having someone shepherd him around the industry. “Now I want to give back,” he said. “We need to look at the things we can change in ourselves, in our company, in our communities, and in our industry. Change comes from the bottom and the top.” Increasing representation “It takes all of us to increase representation everywhere,” said Kasia Hanson of Intel Corp., another panelist. “We have in common that we are all human beings. Let’s make sure the next generation all have opportunities.” Diverse companies can attract better talent Moving forward, the panelists urged the industry to get involved and create opportunities because inclusion drives diversity. Diverse companies can attract better talent and attain a competitive advantage. Awareness of unconscious bias, and working to eliminate it, is an important element of change. Despite the progress the security industry is making, change continues to be incremental. As Ruth Bader Ginsburg has said, “Real change, enduring change, happens one step at a time.”