Analog or digital: designing video surveillance systems

Today, more than ever, technology rules the world. The Internet of Things (IoT) has become a reality, network devices are used in all areas of everyday life. Some devices have become "smart" and can learn by repetition and data processing. Such systems are called artificial intelligence (AI). You may have even heard the terms machine learning and autonomous systems. This is our new reality, where technology is advancing fast enough to provide a wide range of choices and to produce so much information that we are confused.
A good example is modern video surveillance systems, in the design of which many are faced with a difficult question - to rely on proven but outdated analog cameras or modern digital cameras. To make the right decision, you need to consider the obvious difference that exists between the two types of cameras.
Business owners should first consider the cost of the product and the costs of using it, existing system maintenance agreements, licensing terms, and system support. It was the cost that made some customers opt for inexpensive analog cameras.
Recently, however, digital IP systems have become more cost effective than analog systems and are therefore preferred almost 100% of the time. Analog systems are still useful where they have already been put into operation and meet existing safety requirements. But it is also recommended to replace them with digital ones when they are no longer able to solve the current tasks of the enterprise.
Traditionally, video surveillance systems are also called CCTV (Closed Circuit Television), but this term is outdated and cannot be used in relation to modern systems. CCTV is a point-to-point communication technology that provides video surveillance in a specific area and sends the signal to a specific monitor or workstation. The CCTV system operates on a closed network and must be connected to a digital video recorder (DVR) using a cable connection.
The problem with this technology is that, depending on the technical requirements and the need for cabling, the system can become quite cumbersome and expensive. There is also a limit to the number of cameras that can be connected to a single DVR. In other words, the main problem with analog systems is their low flexibility.
Ultimately, analog systems are stand-alone, specific-purpose systems that have been proven over the years and are supported by an already built analog infrastructure. On the other hand, building video surveillance systems using IP cameras is a more holistic and modern approach.
IP cameras are digital and network devices for real-time use. These cameras transmit data to the DVR over the Internet or a local area network and support Power over Ethernet (PoE), combining data transmission and power into one cable system. Video surveillance systems built on digital cameras are also easier to expand and modify. Not to mention the obvious advantage of such cameras over analog ones in terms of capabilities and performance.
Modern video surveillance systems can be integrated with intrusion detection systems and fire safety systems. The compatibility of video surveillance systems with evolving AI technologies also helps to reduce the risk of human error and reduce the need for additional personnel to maintain the system.
When designing and installing video surveillance systems, you should first consult with security professionals independent of the equipment manufacturer. Each aspect should be carefully considered to ensure that the system meets the security requirements and expectations of the organization.