为月球机器人设计低功耗实时实例分割系统,兼顾量化校准与辐射故障防护。
Hardware-Accelerated Instance Segmentation for Resource-Constrained Space Robotics with Criticality Analysis

- 无标签校准法基于激活方差选择样本,提升量化精度。
- 在DPU上部署改进YOLO模型,实现309毫秒延迟、5.7瓦功耗。
- 软件级关键性分析可降低31.7%全局故障暴露,适合航天场景应用。
自主月球任务需在极端弱光、计算资源受限及辐射导致硬件故障三重约束下实现实时感知。本文提出一种面向部署的实例分割框架,联合解决量化校准与系统级故障暴露问题。首先,引入无需标签的激活方差信息采样(AVIS)策略,基于激活方差统计确定性地选择校准样本。其次,在深度学习处理器单元(DPU)上部署基于YOLO的分割模型,通过架构优化减少CPU回退路径,实现静态编译执行与弱光条件下的有界延迟。进一步提出软件级关键性分析,评估辐射环境下的故障暴露并指导缓解策略。在月球微探测车上,结合偏差修正的AVIS恢复了69.8%的量化精度损失,推理延迟为309毫秒,功耗5.7瓦;针对性缓解使全局关键性降低31.7%。结果展示了集成方法的有效性,为太空部署下的可靠安全AI感知提供蓝图。
原文摘要 · Abstract (English)
Autonomous lunar missions require real-time per- ception under three coupled constraints: extreme low-light conditions, limited onboard compute, and radiation-induced hardware faults that can silently corrupt inference. We present a deployment-oriented instance segmentation framework for resource-constrained lunar robotics that jointly addresses quan- tization calibration and system-level fault exposure under strict compute constraints. First, we introduce Activation Variance Informative Sampling (AVIS), a label-free calibration strategy that deterministically selects calibration samples based on activation variance statistics. Second, we deploy a YOLO-based segmentation model on a Deep Learning Processor Unit (DPU) with architectural modifications that reduce CPU fallback paths and enable statically compiled execution with bounded latency in low-lighting conditions. We further introduce a software-level criticality analysis to estimate fault exposure and guide mitigation under radiation-constrained operation. On a lunar micro-rover platform, AVIS with bias correction recovers 69.8% of quantization-induced accuracy loss while achieving 309 ms inference latency and 5.7 W power consumption. Targeted mitigation reduces global criticality by 31.7%. The results demonstrate an integrated approach and a blueprint for a reliable and safe AI perception framework under space deployment constraints.
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