? Scheme Introduction

Expressway monitoring system is an important means to realize safe, efficient and fast operation of expressway. Under the condition of existing road environment, through the mature industrial Ethernet technology link road surveillance cameras, all kinds of sensors, the variable information board, such as equipment, using advanced information and communication technology, electronic control technology, computer processing technology, etc., for traffic information acquisition, processing, storage, and forecast, to achieve real-time monitoring of road and traffic control, Reduce possible traffic incidents, accidents and congestion, and provide technical support for the fast, safe, comfortable and efficient operation of the expressway.

? Topology Diagram

? Scheme Advantage

· Support optical fiber networking and photoelectric hybrid transmission, to achieve a large range, long distance, anti-interference network communication coverage.
· Open-race switching, full-line fast forwarding of products, to meet the requirements of large traffic, high bandwidth, low delay and other data transmission.
· Dual power redundancy design, in case of power failure, can ensure a more durable and stable power supply.
· A variety of ring network types, rich networking mode, to meet the needs of industrial networking and communication control, convenient network expansion.
· The loop network self-healing technology is adopted, and the loop network self-healing time is less than or equal to 12ms to ensure the rapid healing of the transmission network in case of link failure.
· Supports Bypass Bypass protection to avoid full resistance caused by single point of failure and improve network reliability.
· Industrial construction design, no fan, support DIN and rail mounting, strong protective housing, IP40 standard.
· Lightning and static, strong electromagnetic interference and surge resistance, working temperature: -40~85°C and adapts to various harsh environments.