The development of video surveillance technology has undergone significant transformations over the years. Let's explore the different eras that shaped the landscape of video monitoring:

First Era: Analog Video Surveillance
This era began in the 1970s with analog video surveillance equipment. The transmission was primarily achieved using coaxial cables, and the video signals were analog in nature. The recordings were stored on VCRs (Video Cassette Recorders). However, the limited storage capacity of VCR tapes led to frequent tape replacements to enable long-term storage. The analog video surveillance era faced challenges such as low automation efficiency and slow video retrieval.

Keywords: analog video surveillance, coaxial cables, VCR, limited storage, automation efficiency, video retrieval.

Second Era: Semi-Digital Video Surveillance
In the 1990s, the semi-digital video surveillance era emerged, with the introduction of Digital Video Recorders (DVRs) as the core devices. DVRs digitized and encoded analog video signals for storage. This era saw the replacement of VCRs with DVRs, addressing the issues of low automation efficiency and slow retrieval from the analog era.

Keywords: semi-digital video surveillance, DVR, digitized video signals, automation efficiency, retrieval.

Third Era: Full Digital (Network) Video Surveillance
The current era, also known as the intelligent network video surveillance era, is characterized by fully digital systems. In this era, video surveillance systems are open and decentralized, with no single core hardware device. The main devices in this era include video encoders, network cameras, and central management platforms. The implementation of video content analysis technology plays a crucial role in achieving network video storage, playback, and transmission. The full digital video surveillance era empowers the system with efficient scheduling, command, and control functionalities.

Keywords: full digital video surveillance, network cameras, video content analysis, central management platform, command and control.

At OHWOAI, we stay at the forefront of video surveillance technology, offering cutting-edge solutions that cater to the needs of various surveillance environments. Our commitment to innovation and excellence ensures that our customers benefit from the latest advancements in video monitoring technology.