EtherWAN to Enhance the Traffic Flow Management in Asia
Exploring Traffic Management Gap
In Asia, the issue of traffic congestion has intensified due to the high population density and the proliferation of automobiles. Consequently, the adoption of ITS (Intelligent Transportation System) to enhance the safety, efficiency, and management of ground transportation is of growing significance. Recognizing this need, the traffic department of an Asian country opted for EtherWAN's serial device servers to modernize their traffic light system. This transition involved shifting from a legacy serial communication-based system to one founded on Ethernet technology.
The incorporation of these servers will enable seamless synchronization of traffic flows across various intersections. Furthermore, data collected by these servers can be efficiently transmitted to the central control center and aggregated for in-depth analysis, contributing to improved traffic management.
Integrating Migration Plans
The urban transportation infrastructure was established years ago, with a relatively fixed cabling structure in place. The new migration plan must integrate with the communication backbone provided by the existing telecom carrier. In this specific scenario, an ADSL modem serves as the bridge between each field intersection and the central control point. The decision has been made to forgo the installation of fiber optics, considering both budget constraints and existing infrastructure.
The serial device servers play a pivotal role in this setup by converting serial signals into signals based on the TCP/IP protocol. Ultimately, LAN connections will be established using high-quality industrial-grade ADSL modems to optimize the transmission over the existing copper wires.
Limitations or Opportunities
Off-the-shelf equipment with standard operating temperature ranges cannot be employed within this cabinet. The reason is, that the cabinet's temperature can swiftly soar to 50°C or even higher, rendering such devices too delicate for utilization. Additionally, the equipment must be exceptionally compact due to the space limitations within the cabinet.
Empowering Network Traffic Control
EtherWAN's industrial serial device server, the SE5101, offers simultaneous support for RS232/422/485 serial communication and a 1-port 10/100BASE-TX interface, making it the ideal industrial model for serial-to-Ethernet data transmission. Establishing communication networks is a straightforward process—simply insert a traffic light control card on one end and connect an existing ADSL modem provided by the telecom provider on the other.
This setup enables controllers at the traffic control center to receive signals from each intersection and respond in real time, facilitating seamless information sharing for precise control. The SE5101 boasts a wide operating temperature range, spanning from -10°C to 60°C, and features a compact mechanical design, making it both heat-resistant and adaptable. Consequently, it can be effortlessly installed in compact cabinets within challenging environments.
Stepping Into the Future of Traffic Management
The traffic department overseeing the migration plan is tasked with its implementation across a total of 2,000 intersections. The initial phase focuses on 700 intersections, equipped with EtherWAN's SE5101 serial device servers. After several months of operation, the funding for the second phase will be confirmed based on the satisfactory outcomes observed during the first phase.
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