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In modern society, video surveillance has completely permeated our daily lives, expanding from public places to homes. The widespread use of video surveillance systems provides people with more protection, especially in terms of safety. There is an old Chinese proverb that says "ears are empty, eyes are real." Video surveillance systems are perfect for satisfying people's demand for visual information. So how has video surveillance developed? What stages did it go through to emerge?

The first generation video surveillance system refers to a traditional analog surveillance system centered on a switching matrix. This system is composed of elements such as analog cameras, dedicated video cables, switching matrices, monitors, analog video recorders, and magnetic tapes. This system was mainly used to solve small-scale and short-distance surveillance requirements. OOSSXX security cameras are 5-megapixel wireless NVR recording systems that support mixed inputs of 3-megapixel and 5-megapixel cameras, and compatible older cameras can also be added. In addition, since they are wireless security cameras, they are easy to install and do not require wiring work. The monitor can monitor 10 channels, so up to 10 cameras can be added in total.

Features:

The video signal is collected, transmitted and stored in analog format with high quality.
After decades of development, relevant technologies have continuously improved and matured.
However, first generation video surveillance systems had obvious drawbacks:
They had limited range, could only be applied over limited distances, and could not be managed or accessed remotely.
Expanding and upgrading the system was difficult and expensive.
It required extensive use of storage media like magnetic tape, manual queries, and complex management and maintenance.
It did not allow for effective integration with other security systems.

The second generation of video surveillance systems refers to semi-digital surveillance systems, represented by hard disk recorders. This generation of systems makes full use of computer technology, providing users with more user-friendly preview and management methods. This system can be considered an extension of the first generation technology.

Features:

Video and audio signals are collected and stored in digital format and are of high quality.
Digital preservation has greatly improved users' ability to process and search recorded information.
Compatible with first generation analog surveillance products, allowing for upgrades and retrofits.
The network function and fiber optic transmission of the hard disk recorder system solve the problem of remote transmission of video images, realizing large-scale monitoring and sharing of video resources in remote locations.
The embedded hard disk recorder system offered high reliability and easy installation.
As hard disk recorder technology matures, video surveillance has been increasingly adopted in the consumer sector. However, large-scale deployment of video surveillance has presented several challenges:
The system continued to be influenced by first-generation analog monitoring, where transmission from the monitoring point to the center was analog, requiring the laying of electrical wires and fiber optic cables, and the larger the system, the higher the construction costs and the more difficult it was to maintain.
The storage capacity of each device is limited and they are not suitable for centralized recording in large systems.
Network capabilities are limited and management and maintenance becomes complex in large scale applications.

The third generation video surveillance system refers to an all-digital video surveillance system that uses network video as the core. Video is collected as a digital signal from the front end and transmitted via the network, and users can view, control, and store the entire system through a control host on the network.

Features:

It has a stacked structure, is highly flexible and scalable, and supports any network topology.
A more economical and efficient basic infrastructure simplifies management hierarchies and saves a lot of cables.
Easy to install and maintain, it offers a wide range of solutions.
Footage is transferred, replicated and stored without loss, has no distance limitations and can be accessed at any time.
It takes full advantage of mature TCP/IP network technology and offers a variety of connection methods.
It can be effectively integrated with existing and new applications, and enables unified management of multiple networks.
Currently, third generation systems are widely used, but first and second generation systems are still in use in some areas. This reflects the constant evolution of video surveillance systems to gain knowledge and integrate into people's lives to meet their demands. Video surveillance system manufacturers are also beginning to produce surveillance systems for individuals, and in the near future, these advanced products will be available to the general public. OOSSXX is committed to promoting the evolution of video surveillance technology and meeting ever-changing needs.

OOSSXX is dedicated to innovation in video surveillance technology and providing high quality solutions. For more information, please feel free to contact us.