As we step into the new age of IP technology, surveillance cameras are advancing into a new phase known as the "Four Unifications": front-end integration, network-based transmission, digital processing, and system integration. In this era, surveillance cameras are poised to assume an increasingly pivotal role across various industries, especially in fields like artificial intelligence, enhancin...
First Generation: Traditional Analog Closed-Circuit Television (CCTV) SystemsThe initial phase of surveillance technology, the first generation, was characterized by traditional analog Closed-Circuit Television (CCTV) systems. These relied on dedicated equipment, including cameras, cables, Videocassette Recorders (VCRs), and monitors. In this setup, cameras transmitted analog video signals thro...
1. Clarity AssessmentWhen assessing multiple security cameras, it's advisable to employ identical lenses (favorably fixed or variable lenses). To determine clarity, use a standardized test card with ten sets of vertical lines and ten sets of horizontal lines. Position the center circle on the test card as the reference point for clarity. Ensure you correctly count the number of lines visible on...
The roots of surveillance cameras trace back to 1874, courtesy of French astronomer Jules Janssen, who laid the foundation for this ingenious technology.The deployment of the initial surveillance mirrors took place in 1942. This marked a significant step towards enhanced security measures.In 1957, the United States introduced the world's first electronic surveillance system. However, in its ear...
