The introduction of a universal cable TV monitoring transmission system not only offers a high-quality and cost-effective solution for multi-channel, two-way broadband synchronous signal transmission but also completely transforms the traditional star-structured wiring of surveillance networks.
1. Overview
With the deepening of reform and opening-up and the rapid economic growth, the number of urban migrants has surged, introducing new challenges to social stability. Crime rates, especially theft and robbery, have been on the rise, prompting authorities to implement comprehensive security measures. CCTV surveillance has become an essential component of modern security systems.
As CCTV usage expands, new technologies are continuously being integrated into the field. In terms of transmission, fiber optics and optical transceivers enable remote monitoring and significantly improve image and signal quality. For long-distance transmissions—ranging from tens to hundreds of kilometers—optical transmission is the optimal choice. However, for distances under 1–5 km, coaxial cables remain widely used due to cost considerations, as fiber optics can be economically inefficient for short-range systems.
Despite this, coaxial cables suffer from significant signal attenuation, especially over distances beyond 200–300 meters, leading to distorted images. Even with video amplifiers, the improvement in distance and image quality is limited, and project costs increase substantially. This creates a major challenge in the surveillance industry: how to achieve reliable, high-quality transmission over 1–5 km at an affordable cost.
A breakthrough has emerged—Aokang’s “first-line†monitoring transmission technology. This innovative solution addresses the long-standing issue of mid-range signal transmission, revolutionizing the way surveillance signals are transmitted and enabling a significant leap in coverage.
2. Various Image Transmission Methods
Before the development of the common cable “first-line†TV monitoring transmission technology, image signals were primarily transmitted using conventional coaxial cables or fiber optics.
Coaxial cables were among the earliest methods used for video transmission. However, they suffer from significant signal loss, particularly in color saturation, making them suitable only for short-range applications—typically up to 200–300 meters. While video amplifiers can extend the range, this introduces additional engineering complexity, higher costs, and limitations in both image quality and transmission distance. Moreover, transmitting control signals alongside video requires extra wiring, further increasing installation difficulty and expenses.
In environments with strong electromagnetic interference, such as power plants or large industrial buildings, coaxial cables perform poorly, limiting their use in certain applications.
On the other hand, fiber optics are ideal for long-distance monitoring, but they are not cost-effective for shorter ranges. Thus, for distances between 300 meters and 5 kilometers, there has always been a dilemma: coaxial cables with amplifiers don’t work well, and fiber optics are too expensive. The emergence of broadband “common line†TV monitoring equipment now provides an efficient and economical solution for this range, becoming the preferred choice for medium-distance surveillance transmission.
3. Advantages of Common Cable Line Monitoring
Pufei’s “first-line communication†cable-based TV monitoring system has become an inevitable choice due to its strong anti-interference capabilities, ease of installation, and low cost. It simplifies the wiring process while maintaining excellent signal integrity, making it an ideal solution for mid-range surveillance applications.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
1. Overview
With the deepening of reform and opening-up and the rapid economic growth, the number of urban migrants has surged, introducing new challenges to social stability. Crime rates, especially theft and robbery, have been on the rise, prompting authorities to implement comprehensive security measures. CCTV surveillance has become an essential component of modern security systems.
As CCTV usage expands, new technologies are continuously being integrated into the field. In terms of transmission, fiber optics and optical transceivers enable remote monitoring and significantly improve image and signal quality. For long-distance transmissions—ranging from tens to hundreds of kilometers—optical transmission is the optimal choice. However, for distances under 1–5 km, coaxial cables remain widely used due to cost considerations, as fiber optics can be economically inefficient for short-range systems.
Despite this, coaxial cables suffer from significant signal attenuation, especially over distances beyond 200–300 meters, leading to distorted images. Even with video amplifiers, the improvement in distance and image quality is limited, and project costs increase substantially. This creates a major challenge in the surveillance industry: how to achieve reliable, high-quality transmission over 1–5 km at an affordable cost.
A breakthrough has emerged—Aokang’s “first-line†monitoring transmission technology. This innovative solution addresses the long-standing issue of mid-range signal transmission, revolutionizing the way surveillance signals are transmitted and enabling a significant leap in coverage.
2. Various Image Transmission Methods
Before the development of the common cable “first-line†TV monitoring transmission technology, image signals were primarily transmitted using conventional coaxial cables or fiber optics.
Coaxial cables were among the earliest methods used for video transmission. However, they suffer from significant signal loss, particularly in color saturation, making them suitable only for short-range applications—typically up to 200–300 meters. While video amplifiers can extend the range, this introduces additional engineering complexity, higher costs, and limitations in both image quality and transmission distance. Moreover, transmitting control signals alongside video requires extra wiring, further increasing installation difficulty and expenses.
In environments with strong electromagnetic interference, such as power plants or large industrial buildings, coaxial cables perform poorly, limiting their use in certain applications.
On the other hand, fiber optics are ideal for long-distance monitoring, but they are not cost-effective for shorter ranges. Thus, for distances between 300 meters and 5 kilometers, there has always been a dilemma: coaxial cables with amplifiers don’t work well, and fiber optics are too expensive. The emergence of broadband “common line†TV monitoring equipment now provides an efficient and economical solution for this range, becoming the preferred choice for medium-distance surveillance transmission.
3. Advantages of Common Cable Line Monitoring
Pufei’s “first-line communication†cable-based TV monitoring system has become an inevitable choice due to its strong anti-interference capabilities, ease of installation, and low cost. It simplifies the wiring process while maintaining excellent signal integrity, making it an ideal solution for mid-range surveillance applications.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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