Security Boundaries for Remote Access Monitoring: Risks and Alternatives to Port Mapping
Analyze the hidden dangers of mapping the direct port of a camera or NVR to the public network, and provide the basis for selecting and impl...
81 · 2026-09-07 06 2026-09Application of optical fiber in monitoring long-distance transmission: single-mode multi-mode, splicing and optical modules
Explain when to use optical fiber, how to choose between single-mode and multi-mode, the matching of optical modules and jumpers, and the ac...
78 · 2026-09-06 05 2026-09Monitoring Dedicated Switch Selection: How to Calculate Backplane Bandwidth, Packet Forwarding Rate, and Number of Ports
Starting from the actual code stream of the camera, calculate how much bandwidth and packet forwarding capacity the access layer and aggrega...
75 · 2026-09-05 04 2026-09IP address and port planning during batch deployment: avoiding conflicts and later rework
The IP network segment division, address allocation table template, port planning principles for medium and large surveillance projects are...
72 · 2026-09-04 03 2026-093D digital noise reduction (3D DNR): the trade-off between noise reduction strength and smearing
Explain the difference between 2D noise reduction and 3D noise reduction, why temporal filtering produces smear, and recommended settings fo...
73 · 2026-09-03 02 2026-09The difference between backlight compensation BLC, strong light suppression HLC and wide dynamic range WDR
The principles of the three "backlight processing" mechanisms are different and their applicable scenarios are also different. This article...
70 · 2026-09-02 01 2026-09How to adjust camera image parameters: brightness, contrast, saturation, sharpness
It explains the impact of brightness, contrast, saturation, sharpness, gamma and other parameters on the picture item by item, and gives rec...
67 · 2026-09-01 31 2026-08Shutter and exposure time: why license plates smear at night
Explain the relationship between shutter speed, exposure time and motion blur, and give the shutter setting range to avoid smearing in scene...
67 · 2026-08-31 30 2026-08Image sensor CMOS vs. CCD: How much impact does target surface size have on image quality?
From the photosensitive principle, power consumption, cost to actual image quality, explain why almost all are CMOS now, and how big the dif...
64 · 2026-08-30 29 2026-08What is an IPC network camera? What is the difference from analog cameras
From imaging, transmission, power supply, cabling to back-end storage, the system compares the differences between IPC network cameras and a...
169 · 2026-08-29 27 2026-08How to choose surveillance camera resolution: 2 million, 4 million, 8 million pixels
The higher the resolution, the better. Combined with the monitoring distance, target detail requirements, bandwidth and storage budget, the...
197 · 2026-08-27 25 2026-08How to choose camera lens focal length: 2.8 / 4 / 6 / 8 / 12mm field of view comparison
Focal length determines how wide and how far you can see. Provides a comparison of the field of view angles of common focal lengths and the...
220 · 2026-08-25