A 36 mJ/Inf Convolution Accelerator With Reduced Memory Access and Regrouped Sparse Kernels for Environment Sound Classification on Edge Devices

IF 4.9 2区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC
Lichen Feng;Tao Wang;Rundong Cai;Feng Min;Zhangming Zhu
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引用次数: 0

Abstract

Efficient environment sound classification (ESC) on edge devices is valuable for applications requiring continuous, long-term monitoring. Existing ESC processors have demonstrated great reductions in latency and resource occupation. However, model sparsity and computation flow still require further optimization. In this brief, we propose an end-to-end ultra-lightweight Depthwise Separable Convolution (DSC) neural network, E2E-ULDSC-Pruned, which is made publicly available as an open-source release. To implement this model, a customized accelerator featuring pipelined DSC computation and regrouped sparse kernels is developed, achieving 36mJ/Inference in ZCU102 FPGA (254ms latency and 143mW power consumption), which is superior to recent works.
基于减少内存访问和稀疏核重组的36mj /Inf卷积加速器在边缘设备上的环境声音分类
边缘设备上有效的环境声音分类(ESC)对于需要连续、长期监测的应用非常有价值。现有的ESC处理器已经证明在延迟和资源占用方面有很大的减少。然而,模型稀疏性和计算流程仍有待进一步优化。在本文中,我们提出了一个端到端的超轻量级深度可分离卷积(DSC)神经网络,E2E-ULDSC-Pruned,它作为开源版本公开发布。为了实现这一模型,开发了一种具有流水线DSC计算和重组稀疏核的定制加速器,在ZCU102 FPGA上实现了36mJ/Inference(延迟254ms,功耗143mW),优于目前的研究成果。
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来源期刊
IEEE Transactions on Circuits and Systems II: Express Briefs
IEEE Transactions on Circuits and Systems II: Express Briefs 工程技术-工程:电子与电气
CiteScore
7.90
自引率
20.50%
发文量
883
审稿时长
3.0 months
期刊介绍: TCAS II publishes brief papers in the field specified by the theory, analysis, design, and practical implementations of circuits, and the application of circuit techniques to systems and to signal processing. Included is the whole spectrum from basic scientific theory to industrial applications. The field of interest covered includes: Circuits: Analog, Digital and Mixed Signal Circuits and Systems Nonlinear Circuits and Systems, Integrated Sensors, MEMS and Systems on Chip, Nanoscale Circuits and Systems, Optoelectronic Circuits and Systems, Power Electronics and Systems Software for Analog-and-Logic Circuits and Systems Control aspects of Circuits and Systems.
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