Eciton: Very Low-Power LSTM Neural Network Accelerator for Predictive Maintenance at the Edge

This paper presents Eciton, a very low-power LSTM neural network accelerator for low-power edge sensor nodes, demonstrating real-time processing on predictive maintenance applications with a power consumption of 17 mW under load. Eciton reduces memory and chip resource requirements via 8-bit quantiz...

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Published in:International Conference on Field-programmable Logic and Applications pp. 1 - 8
Main Authors: Chen, Jeffrey, Hong, Sehwan, He, Warrick, Moon, Jinyeong, Jun, Sang-Woo
Format: Conference Proceeding
Language:English
Published: IEEE 01.08.2021
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ISSN:1946-1488
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Abstract This paper presents Eciton, a very low-power LSTM neural network accelerator for low-power edge sensor nodes, demonstrating real-time processing on predictive maintenance applications with a power consumption of 17 mW under load. Eciton reduces memory and chip resource requirements via 8-bit quantization and hard sigmoid activation, allowing the accelerator as well as the LSTM model parameters to fit in a lowcost, low-power Lattice iCE40 UP5K FPGA. Eciton demonstrates real-time processing at a very low power consumption with minimal loss of accuracy on two predictive maintenance scenarios with differing characteristics, while achieving competitive power efficiency against the state-of-the-art of similar scale. We also show that the addition of this accelerator actually reduces the power budget of the sensor node by reducing power-hungry wireless transmission.The resulting power budget of the sensor node is small enough to be powered by a power harvester, potentially allowing it to run indefinitely without a battery or periodic maintenance.
AbstractList This paper presents Eciton, a very low-power LSTM neural network accelerator for low-power edge sensor nodes, demonstrating real-time processing on predictive maintenance applications with a power consumption of 17 mW under load. Eciton reduces memory and chip resource requirements via 8-bit quantization and hard sigmoid activation, allowing the accelerator as well as the LSTM model parameters to fit in a lowcost, low-power Lattice iCE40 UP5K FPGA. Eciton demonstrates real-time processing at a very low power consumption with minimal loss of accuracy on two predictive maintenance scenarios with differing characteristics, while achieving competitive power efficiency against the state-of-the-art of similar scale. We also show that the addition of this accelerator actually reduces the power budget of the sensor node by reducing power-hungry wireless transmission.The resulting power budget of the sensor node is small enough to be powered by a power harvester, potentially allowing it to run indefinitely without a battery or periodic maintenance.
Author Chen, Jeffrey
He, Warrick
Moon, Jinyeong
Hong, Sehwan
Jun, Sang-Woo
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  organization: University of California,Department of Computer Science,Irvine
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  givenname: Sehwan
  surname: Hong
  fullname: Hong, Sehwan
  email: sehwanh@uci.edu
  organization: University of California,Department of Computer Science,Irvine
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  givenname: Warrick
  surname: He
  fullname: He, Warrick
  email: warrickhe@gmail.com
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  givenname: Jinyeong
  surname: Moon
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  organization: Florida State University,Department of Electrical and Computer Engineering
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  givenname: Sang-Woo
  surname: Jun
  fullname: Jun, Sang-Woo
  email: swjun@uci.edu
  organization: University of California,Department of Computer Science,Irvine
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Snippet This paper presents Eciton, a very low-power LSTM neural network accelerator for low-power edge sensor nodes, demonstrating real-time processing on predictive...
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SubjectTerms CPS
edge
iCE40
IoT
Lattices
low power
LSTM
Memory management
Neural networks
Power demand
Predictive Maintenance
Quantization (signal)
Wireless communication
Wireless sensor networks
Title Eciton: Very Low-Power LSTM Neural Network Accelerator for Predictive Maintenance at the Edge
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