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Kotlin Fleet Management App for NVIDIA Jetson Robots

Kotlin Fleet Management App for NVIDIA Jetson Robots

A fleet dashboard can use Kotlin and Jetpack Compose to monitor multiple Jetson-powered robots from one Android device.

Architecture 

                 Kotlin Fleet App
                       |
                 Fleet Gateway
          +------------+------------+
          |            |            |
       Robot 01      Robot 02      Robot 03
       Jetson        Jetson        Jetson
          |            |            |
        ROS 2        ROS 2        ROS 2
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1. Model a robot 

data class Robot(
    val id: String,
    val name: String,
    val online: Boolean,
    val battery: Int,
    val mode: String
)
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2. Fleet state 

class FleetViewModel : ViewModel() {
    private val _robots =
        kotlinx.coroutines.flow.MutableStateFlow<List<Robot>>(emptyList())

    val robots = _robots.asStateFlow()
}
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3. Robot discovery

Do not rely on arbitrary LAN broadcast for production fleet identity. Use authenticated registration and stable robot IDs.

4. Display fleet health

A Compose list can show:

Robot A   ONLINE   91%   AUTONOMOUS
Robot B   ONLINE   64%   CHARGING
Robot C   OFFLINE  --    UNKNOWN
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5. Send commands to one robot 

suspend fun sendCommand(robotId: String, command: RobotCommand) {
    gateway.send(robotId, command)
}
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The gateway should authorize every robot-command pair.

6. Add fleet events

Useful events include:

  • Robot connected
  • Robot disconnected
  • Low battery
  • Navigation failed
  • Safety stop
  • Sensor failure
  • Software update available

7. Scale the architecture

For larger fleets, separate:

Android UI
   ↓
Fleet API
   ↓
Message broker / orchestration
   ↓
Robot gateways
   ↓
Jetson + ROS 2
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Conclusion

Kotlin provides an effective fleet-management UI while each Jetson remains responsible for local perception and robot autonomy.

References

Useful Links

Website: www.v-modal.com

SDK Flutter: https://github.com/v-modal/vmodal_sdk_flutter

SDK Android: https://github.com/v-modal/vmodal_sdk_android

Discord: https://discord.gg/K72z28KUx

Reddit: https://www.reddit.com/r/v_modal/

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