Asynchronous Response Framing for Low-Power Node Scheduling
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Solution Overview
Problem
Traditional asynchronous communications systems require significant computing power for scheduling and message handling, leading to increased cost, complexity, and energy consumption.
Innovation Solution
Implementing a method where a commander node sends a request frame at a defined position within a message to trigger a response from a responder node, allowing responses to be sent at a time controlled by the commander node, reducing the need for complex scheduling and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If traditional asynchronous communications systems use responder node timing for sending response messages, then the system maintains basic communication functionality, but the computing power required for scheduling and message handling increases significantly
Solution Approach 1:
Instead of having the responder node independently determine when to send responses based on its own timing, the commander node inverts the control by sending a request frame that explicitly triggers the responder to send a response. This reverses the traditional timing control approach, transferring scheduling responsibility from the responder to the commander, thereby reducing the responder's computing power requirements for scheduling while maintaining communication functionality
Solution Approach 2:
The commander node services its own scheduling needs by generating request frames at the appropriate times and positions within the message stream. Rather than requiring a separate scheduling mechanism or complex timing logic in the responder node, the commander node proactively creates the timing structure by inserting request frames, allowing the system to operate with simpler, lower-power nodes
2Ease of manufacture
If responder nodes send response messages based on their own timing determination, then communication autonomy is maintained, but system cost and complexity increase
Solution Approach 1:
The complex timing and scheduling functionality is extracted from the responder node and consolidated into the commander node. The responder node is simplified to only need to recognize request frames and send responses, while the commander node handles all timing decisions by strategically placing request frames within the message stream. This extraction of complexity reduces implementation cost for responder nodes while maintaining overall system functionality
Solution Approach 2:
The control paradigm is inverted so that instead of each node independently managing its own timing and response generation, the commander node centrally manages timing by inserting request frames that trigger responder responses. This inversion simplifies the responder node design and reduces implementation cost while maintaining communication autonomy through the request-response mechanism
Data Source
AI summary
An asynchronous communications system is described in which a responder node receives the frames of a message from a commander node and request frame in a predetermined position relative to the frames of the message. The responder node is configured to send a response in reply to the request frame. In some examples, the responder node sends the response frame while the responder node receives the request frame from the commander node.