Network diagram for a smart traffic light

About this network diagram for a smart traffic light

The system begins by sending data from each traffic light unit to an IOT gateway via a local network. Each traffic light connects to sensors and cameras. These provide video feeds, vehicle detection signals, and pedestrian request signals.

The inputs flow continuously from the devices into the traffic light unit. There, they are collected and sent to the IOT gateway. The gateway receives all sensor data and combines it into a single stream. This helps the system handle the data efficiently.

After gathering the information, the IOT gateway sends it to the cloud server. The cloud server analyzes this data. It looks at traffic flow, pedestrian activity, and signal states. It also gets control commands from remote monitoring. These commands help adjust traffic light behavior as needed. Processed data flows through the cloud server all the time. This keeps the traffic lights updated in real time.

The cloud server communicates with two main areas. One output stream sends updated logs and system data to the database servers. These servers hold information. This helps the system keep records, analyze patterns, and create historical reports. The other output stream connects to the monitoring dashboard via an API. The dashboard can access real-time system data. It displays traffic status and shows changes across the network.

The cloud server sends control signals to the IOT gateway. The gateway updates each traffic light. It adjusts timing, color changes, and pedestrian signals using the data it processes. This loop helps the system collect, process, store, and adjust traffic behavior smoothly.