Sensor Interface Queue Control for Overflow-Protected Data Flow
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Solution Overview
Problem
Existing sensor interface technologies face challenges in managing data overflow and ensuring seamless data transmission between sensor sources and signal processors, which can impact audio/visual quality and user experience.
Innovation Solution
A sensor interface architecture with a queue enabler circuit and controller to manage data packets, detecting overflow and enabling/disabling data reception, and converting data frames for processing by signal processors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a queue is used to buffer data packets from sensor links, then data transmission continuity is improved, but queue overflow can occur causing data loss
Solution Approach 1:
The controller monitors the queue status and detects overflow conditions. When overflow is detected, the controller generates a feedback signal to disable the queue enabler circuit, preventing further data packets from being received and stored in the overflowed queue. This feedback mechanism resolves the contradiction by dynamically adjusting the reception state based on real-time queue status.
Solution Approach 2:
The queue enabler circuit transitions between enabled and disabled states dynamically based on controller decisions. This dynamic state change allows the system to adapt to varying data flow conditions and prevent overflow-related data loss while maintaining continuous transmission when conditions permit.
2Productivity
If the queue enabler circuit remains enabled to receive continuous data, then data flow continuity is maintained, but overflow risk increases
Solution Approach 1:
The controller continuously monitors queue status and provides feedback to the queue enabler circuit. When the queue approaches capacity or overflow is detected, the controller disables the enabler circuit, temporarily halting data reception. This feedback-controlled dynamic adjustment balances productivity and reliability by adapting the reception rate to actual queue conditions.
3Device complexity
If multiple sensor links share a common queue, then device complexity is reduced, but data management complexity increases
Solution Approach 1:
The system segments data management by allocating specific queues to specific sensor links or data types. This segmentation allows simpler individual queue management while maintaining the ability to handle multiple sensor inputs. The controller manages these segmented queues independently, reducing the complexity of managing mixed data streams in a single queue.
Data Source
AI summary
The present disclosure describes a sensor interface (SIF) system with queue overflow protection. The system includes a first queue enabler circuit coupled to a first sensor link and configured to enable a sensor interface queue (SIFQ) to receive a first set of data packets from the first sensor link. The system also includes a second queue enabler circuit coupled to a second sensor link and configured to enable the SIFQ to receive a second set of data packets from the second sensor link. The system further includes a controller coupled to the SIFQ, the first queue enabler circuit, and the second queue enabler circuit, where the controller is configured to detect an overflow in a first queue, disable, in response to the overflow, the first queue enabler circuit to stop receiving additional data packets from the first sensor link and enter a disabled state for the system.