News & Events
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Sep 19,2026
CCTV Lens Selection Technical Guide: Focal Length, Pixel Density & the DORI Standard in Practice
Why can't a 4K camera read faces? Because identification depends on pixel density, not total pixels. Using the EN 62676-4 DORI standard, this guide gives the full focal-length / distance / field-of-view formulas, a lens selection lookup table, and the real impact of sensor size and aperture on night vision.
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Sep 19,2026
Integrating CCTV with Access Control, Fire Alarm & Intrusion Systems: A B2B Buyer's Guide
Integration has three levels with 3x cost difference: video consolidation, event linkage, business fusion. Compare ONVIF, GB/T 28181, SDK and API approaches, design door/fire/intrusion linkage scenarios, and write testable acceptance clauses.
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Sep 12,2026
CCTV Data Compliance: Video Retention, Privacy Masking and Access Control Management
A practical data-compliance guide for surveillance operators under GDPR and comparable regimes: the three-question legality test, retention-period determination, privacy-masking implementation, a three-tier access model with audit trails, facial-recognition red lines, and cross-border transfer rules — so the system that protects your premises doesn't become your biggest liability.
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Sep 12,2026
How to Accept and Sign Off a CCTV Project: Acceptance Checklist and Common Corner-Cutting Traps
A practical acceptance guide for security camera installation projects: the three-stage acceptance process (concealed works, trial run, final handover), six common corner-cutting traps — CCA cable, over-length runs, underrated PoE, refurbished drives, model substitution and inflated retention — plus a field test checklist, document requirements and milestone payment structure.
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Sep 05,2026
A selection and compliance guide for industrial security cameras: hazardous-area zone classification (gas and dust), how to read the Ex marking field by field, certificate verification (Ex certificate + IECEx/ATEX or local listing), temperature-tier solutions, corrosion-resistant materials, and the four hidden killers — dust, EMI, vibration and backlight.
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Sep 05,2026
Distributed Security Architecture Guide
This guide is for IT managers, procurement teams, and security engineers at chain retailers, manufacturers, and property groups. The problem is not 'which camera to buy,' but how dozens or hundreds of locations can be monitored, managed, and audited from one central point. The core architectural challenge is protocol unification, network topology, and platform governance. Without these, every branch becomes an isolated island, forcing staff to log into different systems and delaying incident response.
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