14 min read
•
5.0
An authoritative engineering manual on designing mission-critical enterprise IP video surveillance networks, detailing layer-2/layer-3 core-distribution-access models, 802.1Q VLAN trunking, IEEE 802.1X port-based Network Access Control, and micro-segmentation firewall policies.
By Alex Vance
1 day ago
14 min read
•
5.0
An exhaustive technical security hardening standard for IP cameras and Network Video Recorders based on the NIST SP 800-115 and CIS Benchmarks. Details embedded Linux attack surface minimization, Telnet/SSH daemon elimination, cryptographic TLS 1.3 enablement, and secure boot validation.
By Alex Vance
1 day ago
14 min read
•
5.0
An electrical engineering manual on Power over Ethernet (PoE, PoE+, PoE++ Type 3 & 4), detailing Ohm's Law loop resistance equations, DC voltage drop across 100m Cat6 runs, thermal dissipation in cable bundles, and enterprise switch power budget management.
By Alex Vance
1 day ago
14 min read
•
5.0
A comprehensive engineering study on video surveillance storage architecture, detailing RAID 5/6/10 write penalties, Mean Time Between Failures (MTBF) Markov reliability models, Drive Writes Per Day (DWPD) endurance mathematics, and SAN/NAS throughput sizing.
By Alex Vance
1 day ago
16 min read
•
5.0
An authoritative engineering manual on CCTV optical physics and geometric optics, formulating thin-lens equations, sensor crop factors, Ground Sampling Distance (GSD), and the international EN 62676-4 DORI standard.
By Alex Vance
1 day ago
16 min read
•
5.0
An exhaustive technical deployment manual for Perimeter Intrusion Detection Systems (PIDS), formulating Phase-Sensitive Optical Time-Domain Reflectometry (Phi-OTDR), bistatic microwave volumetric Fresnel zones, and 3D LiDAR point-cloud clustering.
By Alex Vance
2 days ago
14 min read
•
5.0
A rigorous optical engineering guide to campus-wide CCTV fiber optic infrastructures, detailing Single-Mode (OS2) vs Multi-Mode (OM4) dispersion, optical power budget calculations, OTDR attenuation testing, and CWDM multiplexing.
By Alex Vance
2 days ago
16 min read
•
5.0
An authoritative software and systems engineering guide to Physical Security Information Management (PSIM), detailing middleware architectures, OPC-UA industrial automation gateways, BACnet/IP building systems, and unified common operating picture (COP) orchestration.
By Alex Vance
2 days ago
15 min read
•
5.0
An enterprise systems resilience guide on high availability and disaster recovery for video surveillance, detailing N+1 and N+M NVR failover architectures, distributed metadata synchronization, Edge Storage Trickle-Polling (ONVIF Profile G), and RPO/RTO minimization.
By Alex Vance
2 days ago
16 min read
•
5.0
A rigorous optical and photometric engineering guide to surveillance site surveys and lighting design, formulating Inverse-Square Law illuminance equations, 850nm vs 940nm infrared spectrometry, Wide Dynamic Range (WDR) sensor exposures, and SNR modeling.
By Alex Vance
2 days ago
2 min read
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4.9
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By Alex Vance
May 17, 2026
4 min read
•
5.0
In this article, I talk about the difference between CCD and CMOS sensors for CCTV and what are the advantages and disadvantages of these technologies.
By Alex Vance
May 01, 2026
11 min read
•
4.9
Eseecloud Stand alone camera, EseeCloud(IP Pro, VR Cam) is a simple, stylish, user-friendly, and powerful mobile video surveillance software. We are committed to continuously improving our video processing technology and...
By Alex Vance
Apr 21, 2026
