In the core business district of Shenzhen’s Futian CBD, a high-end office complex consisting of five landmark buildings—Tairan, Yunsong, Shuisong, Xuesong, and Hongsong Towers—faces significant challenges in managing objects dropped from height. Traditional surveillance systems suffer from issues such as video lag and frequent equipment disconnections, with malfunctions becoming even more common during extreme weather conditions like heavy rain and intense heat. This year, the project launched an intelligent upgrade initiative, aiming to build a zero-blind-spot monitoring network capable of responding within milliseconds.
Stringent Challenges
Over 200 high-definition cameras require stable power and transmission at heights of up to 30 meters.
A typhoon season characterized by high temperatures and humidity (with temperature fluctuations ranging from -5°C to 45°C).
A densely built urban environment rife with complex electromagnetic interference.
A requirement for object‑trajectory recognition latency no greater than 50 milliseconds.
ONV’s Solution:
The robust performance of industrial-grade switches.
To address these challenges, the project selected ONV’s industrial-grade Layer 3 core Ethernet switches as the cornerstone of its network infrastructure. This solution perfectly meets the stringent demands of high‑altitude object‑dropping surveillance:
Access Layer: Deploying High‑Performance Industrial‑Grade PoE Switches
Equipped with ample standard PoE+ ports, these switches directly power high‑definition cameras dedicated to object‑dropping detection, installed on rooftops and exterior walls, simplifying cabling while reducing installation complexity and costs.
They also feature Gigabit optical uplinks, ensuring high‑bandwidth, low‑latency connectivity between the access layer and the core, thus supporting uninterrupted transmission of high‑definition video streams.
Operating across a wide temperature range (-20°C to +55°C), with 6kV lightning protection and an IP30 ingress protection rating, these devices effortlessly withstand harsh outdoor conditions, guaranteeing year‑round stable operation.
Large buffer design: Intelligent traffic scheduling effectively prevents video stuttering and packet loss, ensuring smooth surveillance footage and complete evidence integrity.
Core Layer: Deploying High‑Density, High‑Backplane‑Bandwidth Industrial‑Grade Layer 3 Routing Core Switches
Providing numerous Gigabit electrical ports and SFP optical ports, these switches flexibly connect access switches in each building to backend management platforms.
Supporting multi‑layer switching and rich management features, they enable full network visibility, manageability, and controllability.
Carrier‑grade reliability: Redundant key components, high backplane bandwidth, and powerful data processing capabilities ensure efficient, stable, and bottleneck‑free operation of the entire surveillance network.
Ample ports and bandwidth are reserved to accommodate future system expansions, such as adding AI analysis servers or increasing storage capacity.
Transmission Assurance:
Key links utilize fiber‑optic transmission, effectively resisting electromagnetic interference and ensuring long‑distance, high‑quality signal delivery.
Complemented by industrial‑grade fiber optic transceivers, these solutions achieve efficient, stable conversion between optical and electrical signals.
Technical Highlights
Military‑grade reliability.
Operates reliably across a wide temperature range of -20°C to +55°C, certified for 6kV lightning protection and 8kV electrostatic discharge resistance.
Full metal housing with IP30 protection, effectively guarding against the humid, salty environments typical of southern China.
Intelligent Traffic Control Technology
Dedicated large buffer design eliminates stuttering during concurrent transmission of 200 video streams.
Millisecond‑level ring network self‑healing ensures zero frame loss in object‑trajectory videos.
Visualized Management
Topology maps display real-time device status, with automatic alerts for fault locations.
Remote mobile operations boost response efficiency by 60%.
Implementation Results
Networking simplified by 30%: Hybrid fiber‑optic and copper networking achieves relay‑free coverage across all six office towers.
Failure rate reduced to zero: No equipment downtime during 30 consecutive days of heavy rain.
Evidence collection efficiency improved: Object‑recognition accuracy increased from 95% to precisely pinpoint the moment of dropping.
Operations and maintenance costs cut by 40%: A web‑based management platform enables remote, batch‑style maintenance.
Real‑World Impact→
“This system leaves no hiding place for objects dropped from height—it’s like installing an intelligent ‘sky eye’ on every building,” said the project’s security director.
Why Choose ONV?
ONV Manufacturing Center: Leading manufacturing strength, direct manufacturer of PoE switches.
Spanning over 23,000 square meters, the Huizhou Manufacturing Center serves as ONV’s production hub and innovation powerhouse. It houses sheet‑metal fabrication, power supply facilities, advanced industrial switch assembly lines, a central laboratory, digital warehousing, and automated PoE production workshops—all supported by six high‑speed surface‑mount technology lines and six DIP assembly lines, enabling end‑to‑end integrated production. We are committed to building an industry‑leading digital factory, delivering superior PoE switch products worldwide.
22 years of technological expertise: Over 80 patented technologies, China’s first PoE switch manufacturer, a brand recommended by the Ministry of Public Security, and one of China’s top ten national brands in security transmission.
Proven performance: Successfully delivered tens of millions of switches, serving customers in more than 160 countries worldwide, with products operating stably for over three years even under extreme conditions—such as a gold mine where temperatures exceed 85°C.
Agile responsiveness: Custom product designs completed within seven days, twice as fast as the industry average. Automated manufacturing reduces standard product delivery cycles to one-third of those of comparable companies.
