Setembro 2025 vol. 12 num. 1 - XXXII Simpósio Internacional de Engenharia

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Abordagem Conceitual para Implementação de Redes Neurais LSTM em C para Prognóstico e Gerenciamento de Saúde de Veículos

Conceptual Approach to Implementing LSTM Neural Networks in C for Vehicle Prognostics and Health Management

FERNANDES, Thiago Bastos ; PONTE, Leonardo Felipe Nunes ; WATERMANN, Matheus Gomes Camargo ; BORSATO, Milton ;

Trabalho completo:

A aplicação de redes Long Short-Term Memory (LSTM) em Prognóstico e Saúde de Máquina (PHM) tem ganhado destaque devido à sua eficácia em capturar dependências temporais em dados de séries temporais. No entanto, a implementação de modelos LSTM em sistemas automotivos embarcados apresenta desafios que vão além das implementações tradicionais. Este artigo explora um framework conceitual para a execução de inferência LSTM na linguagem de programação C, abordando as dificuldades de adaptação dos cálculos de redes neurais a ambientes com recursos limitados. O estudo apresenta um modelo LSTM leve, inicialmente desenvolvido e treinado em Python com um conjunto de dados sintético que simula a degradação de sistemas para predição da Vida Útil Remanescente (RUL). O modelo treinado foi então reimplementado em C e implantado em um microcontrolador. Todos os pesos treinados (de entrada, recorrentes e viés) foram exportados manualmente do Python e adaptados para uso em C, possibilitando inferência em tempo real sem dependências externas. Os resultados mostram alta consistência entre as plataformas, validando a implementação embarcada.

Trabalho completo:

The application of Long Short-Term Memory (LSTM) networks in Prognostics and Health Management (PHM) has gained significant traction due to their effectiveness in capturing temporal dependencies in time-series data. However, deploying LSTM models on embedded automotive systems presents challenges that extend beyond traditional implementations. This paper explores a conceptual framework for implementing LSTM inference in the C programming language, addressing the difficulties of adapting neural network computations to resource-constrained environments. The study presents a lightweight LSTM model that was first developed and trained in Python on a synthetic time-series dataset simulating system degradation for Remaining Useful Life (RUL) prediction. The trained model was then reimplemented in the C programming language and deployed on a microcontroller. All trained weights (input, recurrent, and bias) were manually exported from Python and adapted for use in C, enabling real-time inference without external dependencies. Results show high consistency between platforms, validating the embedded implementation.

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DOI: 10.5151/simea2025-PAP18

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Como citar:

FERNANDES, Thiago Bastos; PONTE, Leonardo Felipe Nunes; WATERMANN, Matheus Gomes Camargo; BORSATO, Milton; "Abordagem Conceitual para Implementação de Redes Neurais LSTM em C para Prognóstico e Gerenciamento de Saúde de Veículos", p. 77-85 . In: Anais do XXXII Simpósio Internacional de Engenharia. São Paulo: Blucher, 2025.
ISSN 2357-7592, DOI 10.5151/simea2025-PAP18

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