Actor based architecture for world's largest optical telescope

location_city Bengaluru schedule Dec 14th 11:45 AM - 12:30 PM place Senate people 29 Interested

We will share how Thirty Meter Telescope is utilizing Akka-Typed based actor-messaging as a communication backbone to coordinate hundreds of hardware components.


Thirty Meter Telescope (TMT) is going to be world's largest optical telescope once operational. It consists of multiple hardware component each supporting a custom communication protocol at firmware level. Telescope observation requires coordination across these components for tasks such as mirror rotation, instrument and filter selection etc. This talk will discuss how Akka-Typed based actor-messaging layer on top of these custom protocols enabled the task of building higher level operational software with relative ease.

We will show that Akka-Typed allowed creating type-safe protocol layer and how akka actors helped with state management in presence async concurrent communication. In addition, we will discuss how support for lifecycle events, fault tolerance and supervision in actor model turned out to be a great fit for the task. This work is done as an open source project on github.


Outline/Structure of the Talk

  1. High level overview of TMT architecture.
    • Framework
    • Messaging Broker
    • Service Discovery
    • Configuration Storage
  2. Why Actors?
  3. Alternatives?
    • Active Objects?
  4. Why Typed Actors?
  5. End to end app to demonstrate

Learning Outcome

  • Significance of Actor model in IOT based application
  • How it helped extracting framework for TMT(Thirty meter telescope) architecture

Target Audience

All interested in control systems, IOT based architecture and framework abstraction over multiple IOT protocols.



schedule Submitted 2 years ago