Athens IoT meetup #7 - Open Source Industrial IoT - Manolis Nikiforakis (Ex Machina)
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The document discusses an open-source industrial IoT middleware solution for Modbus-based energy monitoring, highlighting the challenges faced by facility managers in tracking energy utilization across multiple buildings. It outlines various architecture options, considerations for middleware design, and provides guidance on setting up a gateway with Thingsboard for visualization and management of energy data. The presentation emphasizes low-cost smart meters, the importance of security and reliability, and suggests open-source software options for effective IoT middleware implementation.
Athens IoT meetup #7 - Open Source Industrial IoT - Manolis Nikiforakis (Ex Machina)
- 1. Open Source Industrial IoT Middleware for a modbus energy monitoring solution (Athens IoT meetup - May 2018) e-mail·manolis@exm.gr twitter·@nikil511 linkedin.com/in/mnikiforakis website·exm.gr
- 2. Building energy monitoring use-case Customer pain of a facility manager with multiple buildings Energy monitoring via paper bills Unknown energy utilization, efficiency, wastage
- 3. Building energy monitoring use-case Monitoring (commercial) building energy is a typical IoT use-case, yet an optimum solution is still not obvious. Assuming the two far ends of the IoT value chain fixed (modbus meters & thingsboard) - What are some architecture / open source software options for middleware? - Pros and cons
- 4. IoT to the rescue 1) Deploy low-cost yet reliable smart meters (modbus) 2) Connect them to a cloud platform, via the internet 3) Enjoy energy analytics and actionable insights!
- 5. 1) Low cost yet reliable smart meters (modbus)
- 6. 2) Connect them... IoT Middleware ? ????
- 7. 3) … to a cloud platform …like... ThingsBoard.io IoT Middleware ? ???? ????
- 8. Considerations for middleware architecture a. Cost & Risk Open source vs closed ? b. Reliability Tried before? c. Ease of deployment / maintenance Developers required for configuration / debugging ? d. Scalability Handle more than a few devices? e. Flexibility Multivendor? f. Security By design?
- 9. Connected to smart-meters via modbus Entire solution inherits the characteristics/limitations of the gateway (e.g. robust, plug n play, not real time, summarized aggregate figures) HTTP periodic export MODBUS polling Original vendor hardware gateway + custom parser CSV parser to MQTT publisher
- 10. NO LIMITS Many open-source options NO obvious solution MODBUS polling Alternative hardware gateway with OSS IoT middleware MODBUS to MQTT publisher ???
- 11. IoT middleware open-source options for modbus to mqtt ● ESP8266/ESP32 ○ Arduino modbus libs ○ M5Stack - MS Azure & Amazon AWS IOT certified ● RPi / Linux gateways ● NodeRED ● OpenHab ● Eclipse Kura ○ Eclipse AGAIL ○ Eclipse Kapua ○ Eclipse Hawkbit
- 13. Ex Machina Lightweight TB GW as a Kura OSGi bundlehttps://github.com/exmgr/Kura-Thingsboard-Bundle
- 14. Setting up a Gateway & TB ● Requirements ○ Raspberry Pi ○ Agile Raspbian Image with Agile-Kura docker container ○ ESF ModBus driver from Kura Marketplace ● Install EXM Kura Thingsboard Bundle ○ Easy installation by uploading a single deployment package from Kura’s web ui. ● Configure Thingsboard gateway device access token
- 15. Setting up Assets and Channels ● Devices in Kura are called “Assets” and their data objects (coils, holding registers etc) are “Channels” ● Assets/Channels are abstractions for the underlying driver-device communications making the low-level communication transparent for the bundle.
- 16. Configuring the EXM Kura Thingsboard Bundle ● After installing the bundle, a configuration section is added to Kura’s web ui.. ● Easy configuration, only 2 fields required: ○ Thingsboard URI ○ Thingsboard gateway token ● The Bundle starts forwarding telemetry immediately.
- 17. Thingsboard devices Kura Assets appear automatically as devices in Thingsboard.
- 18. Visualization in Thingsboard ● Device telemetry is added to UI widgets ● Data is visualized as soon as it is received
- 19. Ex Machina TB-GW service, managed by Kura OSGi bundle https://github.com/exmgr/Kura-Tb-Gateway-Manager
- 20. Kura Tb-Gateway Manager ● Tb-Gateway is installed normally, as a service and configured ● A custom manager bundle is used to start/stop it on demand ● Artemis MQTT Broker is enabled with default settings ● A Kura Cloud Service is set up and configured to publish to Artemis MQTT ● Assets/Channels set up as usual
- 21. Kura Tb-Gateway Manager As a last step, a simple Kura wire graph is set up to read assets at regular intervals and publish the readings.
- 22. More power with Eclipse IoT hawkBit is a domain independent back-end framework for rolling out software updates to constrained edge devices as well as more powerful controllers and gateways connected to IP based networking infrastructure. Kapua is a modular platform providing the services required to manage IoT gateways and smart edge devices. Kapua provides a core integration framework and an initial set of core IoT services including a device registry, device management services, messaging services, data management, and application enablement.