VOICE CONTROL SYSTEM FOR PILOTING DRONES USING ARTIFICIAL INTELLIGENCE TECHNIQUES

Authors

DOI:

https://doi.org/10.52326/jes.utm.2026.33(2).01

Keywords:

accessibility, voice control, human-machine interaction, BiLSTM, CNN, MFCC, neural networks, embedded systems, TinyML

Abstract

Voice control of drones is an innovation direction with high potential for many professional and social domains. This article analyzes the practical usefulness of a voice control system for drones based on an artificial intelligence model that runs locally, without an internet connection. The hybrid CNN+BiLSTM model is trained to recognize commands in Romanian and is deployed on the ESP-Drone platform with an ESP32-S2 microcontroller. Unlike commercial alternatives based on cloud infrastructure, the proposed solution runs entirely locally, eliminating latency and dependence on connectivity. The application domains with the greatest impact are examined, such as industrial inspections, search and rescue operations and precision agriculture, while also highlighting an often overlooked category of beneficiaries: people with motor disabilities, for whom voice control offers the possibility to pilot drones independently, without using their hands. The experimental results demonstrate a test accuracy of 99.4% and an end-to-end latency of 210–350 ms, confirmed under real flight conditions.

References

Pal, O.K., Shovon, M.S.H., Mridha, M.F. and Shin, J. (2024) In-depth review of AI-enabled unmanned aerial vehicles: Trends, vision, and challenges, Discover Artificial Intelligence, 4(1), 97. https://doi.org/10.1007/s44163-024-00209-1. DOI: https://doi.org/10.1007/s44163-024-00209-1

Valavanis, K.P. and Vachtsevanos, G.J. (eds.) (2015) Handbook of Unmanned Aerial Vehicles. Dordrecht: Springer Netherlands. https://doi.org/10.1007/978-90-481-9707-1. DOI: https://doi.org/10.1007/978-90-481-9707-1

Tsoukas, V., Gkogkidis, A., Boumpa, E. and Kakarountas, A. (2024) A review on the emerging technology of TinyM’, ACM Computing Surveys, 56(10), pp. 1–37. https://doi.org/10.1145/3661820. DOI: https://doi.org/10.1145/3661820

Di Leo, S., De Cicco, L. and Mascolo, S. (2025) Real-Time Speech-to-Text on Edge: A Prototype System for Ultra-Low Latency Communication with AI-Powered NLP, Information, 16(8), 685. https://doi.org/10.3390/info16080685. DOI: https://doi.org/10.3390/info16080685

Picovoice (2025) Speech-to-Text Latency: How to Read Vendor Claims. Available at: https://picovoice.ai (Accessed: May 2026).

Espressif Systems (2024) ESP-Drone Documentation – Get Started. Available at: https://docs.espressif.com (Accessed: March 2026).

Lyons, R.G. (2011) Understanding Digital Signal Processing. 3rd edn. Upper Saddle River, NJ: Prentice Hall.

Hochreiter, S. and Schmidhuber, J. (1997) Long Short-Term Memory, Neural Computation, 9(8), pp. 1735–1780. https://doi.org/10.1162/neco.1997.9.8.1735. DOI: https://doi.org/10.1162/neco.1997.9.8.1735

De Simone, G., Greco, A., Rosa, F., Saggese, A. and Vento, M. (2025) Context-aware data augmentation for enhanced speech command recognition in industrial environments, Scientific Reports, 15(1), 17445. https://doi.org/10.1038/s41598-025-01886-3. DOI: https://doi.org/10.1038/s41598-025-01886-3

Bitcraze AB (2024) CRTP – Communication with the Crazyflie. Available at: https://www.bitcraze.io (Accessed: March 2026).

Martin, R.C., Grenning, J., Brown, S. and Henney, K. (2018) Clean Architecture: A Craftsman's Guide to Software Structure and Design. Boston, MA: Prentice Hall.

Bulai, G. (2026) Voice Control System for Piloting Drones. Bachelor's thesis. Technical University of Moldova, Chișinău.

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Published

2026-07-15

How to Cite

Bulai, G., Bostan, V., Rotaru, L., & Bumbu, T. (2026). VOICE CONTROL SYSTEM FOR PILOTING DRONES USING ARTIFICIAL INTELLIGENCE TECHNIQUES. JOURNAL OF ENGINEERING SCIENCE, 33(2), 7–19. https://doi.org/10.52326/jes.utm.2026.33(2).01