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Diseño de observador basado en datos muestreados y controlador resiliente activado por eventos para sistemas
IEEE transactions on cybernetics
|December 30, 2025
Resumen
Este estudio presenta un método de control seguro para sistemas ciberfísicos (CPS) contra ataques combinados de inyección de datos falsos (FDI) y denegación de servicio (DoS). El enfoque garantiza la estabilidad y el rendimiento del sistema a pesar de las restricciones de red y los ataques.
Área de la Ciencia:
- Seguridad de Sistemas Ciberfísicos
- Teoría de Control
- Sistemas en Red
Sus antecedentes:
- Los sistemas ciberfísicos (CPS) son vulnerables a sofisticados ataques de red.
- Los ataques mixtos, incluidos la inyección de datos falsos (FDI) y la denegación de servicio (DoS), plantean importantes desafíos de seguridad.
- Los métodos de control existentes a menudo luchan con las restricciones de transmisión y la información de estado incompleta.
Objetivo del estudio:
- Desarrollar una estrategia de control seguro para CPS bajo ataques simultáneos de FDI y DoS.
- Diseñar un observador de datos muestreados para la estimación de estados y la reconstrucción de ataques FDI.
- Introducir un mecanismo resiliente activado por eventos (ETM) para mitigar los ataques DoS.
Principales métodos:
- Se diseñó un novedoso observador de datos muestreados para estimar los estados del sistema y reconstruir los ataques FDI.
- Se desarrolló un mecanismo resiliente activado por eventos (ETM) para tolerar ataques DoS con energía acotada.
- Se construyó un controlador activado por eventos basado en observador integrando el observador y el ETM.
Principales resultados:
- El controlador propuesto garantiza una convergencia asintóticamente acotada bajo ataques mixtos.
- El enfoque compensa eficazmente los ataques FDI y tolera los ataques DoS.
- Las simulaciones en un sistema de tres tanques y un sistema de péndulo invertido demostraron un rendimiento superior.
Conclusiones:
- El controlador activado por eventos basado en observador desarrollado proporciona una seguridad robusta para CPS contra ataques de red mixtos.
- El método supera las limitaciones de las restricciones de transmisión y las mediciones de estado parciales.
- El enfoque ofrece una solución prometedora para la operación segura y resiliente de CPS.
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