Ion4 Smart Crossing

Adam Tas Corridor crossing, Stellenbosch · live from device crossing-01
Cloud broker: connecting Device: waiting City link: unknown

The crossing

LEFT
Waiting
Mode--
Train--
Railway gate--
Car at barrier--
Car barrier--
Trains / cars counted--
RIGHT

People crossing

Waiting now--nobody waiting
Average wait--sent to the city as wait_s
Last wait--press to red
Crossings served---- button presses

Environment

Road temperature----
Gas / smoke----
Soil moisture----
Daylight--lamp --

Controls

Gates cannot be opened from here. They move only from the buttons on the device or the train sensor, so a remote command can never lift a barrier onto a train.

Event log

Cloud broker

Brokereeb1e83a06da4b44b7a340bc19cd1e75.s1.eu.hivemq.cloud (HiveMQ Cloud)
Device port8883 MQTT over TLS
Website port8884 MQTT over secure WebSocket, path /mqtt
State topicion4/crossing/state, full JSON every 5 s
Command topicion4/crossing/cmd, for example {"cmd":"mode","val":"maintenance"}
City mainframehack/qsoju/crossing-01/telemetry every 30 s and hack/qsoju/crossing-01/status (retained), on the Octoco broker