Perception Computing-Aware Controller Synthesis for Autonomous Systems
2021
Feedback control loops are ubiquitous in any autonomous system. The design flow for any controller starts by determining a control strategy, while abstracting away all implementation details. However, when designing controllers for autonomous systems, there is significant computation associated with the perception modules. For example, this involves vision processing using deep neural networks on multicore CPU+accelerator platforms. Such computation can be organized in many different ways, with each choice resulting in very different sensor-to-actuator delays and tradeoffs between cost, delay, and accuracy. Further, each of these choices requires the control strategy to be designed accordingly. It is not possible for a control designer to enumerate and account for all of these choices manually, or abstract them away as “implementation details” as done in traditional controller design. In this paper we outline this problem and discuss how automated controller-synthesis techniques could help in addressing it.
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