Solution for Communication Monitoring and Management of Highways

Aotongda Technology, with its highly reliable product design and rich industrial grade switch product line, as well as mature network transmission solution system and innovative network management technology, has assisted in the digital construction of power supply and distribution systems on multiple highways.

Project Background:

In order to promote the integrated development of the whole country and enhance the economic vitality of Hunan, Guangdong, Fujian and other regions, which will have a positive and far-reaching impact, Hunan Province has added new projects to the adjustment plan of the expressway network. The highway automation management system generally consists of eight subsystems: communication, toll collection, monitoring, and power supply and distribution. The stable operation of the communication, toll collection, and monitoring system is based on the stable operation of the power supply and distribution system.

System requirements:

Long distance optical network transmission

Compact size, easy to install

Support network management, integrated control, remote operation and maintenance

High reliability and low latency redundant ring network protection

Can operate stably for a long time in harsh high-speed industrial environments

Industrial grade design to meet harsh outdoor application environments

Scheme design:

In response to the special environment and structure of highways, Optical Network Vision adopts our network redundancy protocol V-Ring network framework, which supports G.8032 (ERPS). A single loop can support up to 250 switches in a ring, and the self-healing time of the ring network is less than 20ms.

The design of the ring network ensures high stability and uninterrupted operation with low faults, meeting the operational needs of subsystems such as communication, toll collection, monitoring, and power supply and distribution in the highway management system.

The construction of the power supply and distribution system adopts a 10 gigabit fiber optic ring network for transmission to ensure stable transmission of video data; The monitoring room adopts a 28 port 10G uplink network management industrial Ethernet switch ONV-IPS36028FM that supports V-Ring protocol (24 10/100/1000Base-T adaptive RJ45 ports+4 1/10G SFP+optical port slots), which can provide long-distance (0-120km) fiber optic transmission with different specifications of SFP modules.

Industrial grade switches are managed in a clustered manner through our NMS platform. This network management software has LAN topology discovery function, which enables real-time operation and intelligent monitoring. At the same time, the power supply and distribution status can be visualized and intelligently managed, which is very convenient and reduces a lot of manpower and material resources.

Features - NMS Operation and Maintenance Platform

Function Display - NMS Operation and Maintenance Platform

These two products, as industrial grade switches, support a wide operating temperature range of -40 to+80 ° C. They have passed EMI and EMS tests and also have relevant impact and vibration resistance test reports. The MTBF time is as high as 539608 hours. More importantly, our industrial switches provide a 5-year warranty, which can provide users with long-term reliable protection.

Scheme architecture:

1. Topology architecture: Adopting a V-Ring redundant network structure to increase network reliability and system stability;

2. Bandwidth configuration: The access layer adopts a fully gigabit managed industrial Ethernet fiber optic switch to build high bandwidth and efficient optical transmission links;

3. Link medium: The access layer links are all based on the principle of proximity, connected and transmitted using CAT6 Ethernet cables, and then connected to the aggregation switches of each unit through the uplink ports of each node switch, reducing multi-level serial connections and facilitating the management and maintenance of the entire system after completion;

4. Equipment configuration: The access layer uses optical network gigabit industrial grade Ethernet switches, and the aggregation layer uses 36 port 10G network management weak layer 3 Ethernet switches.

Program features:

Provide a complete industrial Ethernet solution, including access layer switches and aggregation layer switches

V-RING fiber ring network topology achieves network redundancy while reducing wiring construction and improving system reliability;

The access layer switch adopts a rail mounted design, which is compact in size

The aggregation layer switch is a 10 Gigabit uplink aggregation switch, rack mounted for installation

The switch supports fiber optic and long-distance fiber optic transmission

Industrial grade design, IP40 protection level, spanning a wide temperature range of 120 ℃ (-40~80 ℃)

7 × 24-hour uninterrupted full load operation without any lag