Explosion-proof video surveillance 720P era officially came
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In today's market, explosion-proof high-definition cameras are mostly available in 1080P and 720P resolutions. These two formats offer a good basis for comparison. However, in the explosion-proof camera industry—and even across the broader security sector—there is no universal definition of what constitutes "high-definition." From the perspective of broadcast television, 720P represents the D4 standard, a digital TV format with a resolution of 1280×720 pixels, while 1080P follows the D5 standard, typically offering 1920×1080 pixels.
Technically, both 720P and 1080P use progressive scanning, which means each frame is fully scanned, resulting in smoother and clearer images compared to interlaced scanning. Progressive scan helps eliminate flicker, making the video more visually stable. While the human eye perceives optimal clarity at around 75 frames per second, 30fps is usually sufficient for most surveillance applications, especially in explosion-proof environments where clarity and reliability matter more than extreme frame rates.
From a market standpoint, the 720P and 1080P segments serve different user groups. 1080P requires larger screens (23 inches or more), powerful CPUs (over 3GHz), and hardware decoding capabilities, making it suitable for high-end consumers who demand top-tier performance. In contrast, 720P targets a broader audience, including everyday users who prioritize affordability and practicality. Price differences between the two are significant, as 1080P cameras require more advanced technology and components.
Despite this, many people in the security industry tend to focus too much on high-resolution without considering the unique needs of explosion-proof monitoring. This trend has been influenced by the consumer electronics market, where high-definition has become the norm. Some individuals treat HD as an end goal, assuming that higher pixel counts always mean better results. But in reality, the key is not just about resolution—it’s about how well the footage meets the specific requirements of the environment.
Currently, while 720P is declining in broadcast TV, it's only just beginning its journey in the security field. According to Huang Gong from Shenzhen World Technology, the 720P era in explosion-proof camera surveillance is just starting. As HD surveillance becomes more widespread, 720P is expected to become the mainstream standard for future explosion-proof cameras. It may compete with 1080P, but more often, they coexist as complementary options. This is largely due to cost constraints and the challenges of transmission and storage.
It’s clear that high-definition surveillance is becoming a major trend. It will play a vital role in the market in the coming years. However, pursuing higher resolution also comes with increased costs. Therefore, manufacturers and system integrators must make rational choices based on real-world needs. As technology advances, the number of pixels in explosion-proof cameras could keep increasing. But the human eye can only perceive so much detail. In the end, the goal of surveillance is not to capture every pixel, but to provide clear, useful information on a limited screen. As Huang Gong once said: “The choice of a high-definition camera isn’t about the highest resolution, but about what’s right for the job.â€
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