Publication: Diseño de nodo inalámbrico para procesamiento de voz en prevención de violencia sexual
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2018-06-18
Defense date
2018-07-06
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Abstract
Este Trabajo Fin de Grado surge de la necesidad de reducir, pero sobre todo prevenir, el alto índice de violencia y agresiones sexuales contra las mujeres que existe en cualquier región del mundo. Para ello, se diseña un sistema de grabación de audio en modo continuo (streaming) y de envío mediante un protocolo inalámbrico, Bluetooth® Low Energy (BLE), a un teléfono móvil; lo que permite incorporar la detección de pánico en la voz y poder alertar, a través de un dispositivo portable, de un ataque o agresión que se esté produciendo contra la usuaria.
Por otra parte, se ha aprovechado el sistema de adquisición de audio realizado, para diseñar y desarrollar un sistema que optimice y depure las grabaciones realizadas, en una cámara anecoica, para el entrenamiento de los algoritmos que detectan estrés en la voz. Se han definido dos protocolos para la comunicación en dicho sistema, uno inalámbrico mediante Bluetooth® Low Energy (BLE), y otro alámbrico mediante un cable USB de 10 metros de alcance. La realización de este Trabajo Fin de Grado ha tenido una duración de 10 meses, y de forma resumida y muy general, se puede sostener que se ha conseguido unificar el trabajo en los niveles altos de abstracción, generación de algoritmos para el procesamiento de audio, con los más bajos, y cercanos a las capas físicas y de enlace, para la adquisición, preprocesado y transmisión de dicho audio, a través de los componentes electrónicos y los protocolos de comunicación más actuales y demandados en las aplicaciones tecnológicas de redes de sensores (MEMS, Bluetooth® Low Energy..).
This Final Degree Project arises from the need to reduce, but above all prevent, the high rate of violence and sexual aggression against women that exists in any region of the world. For this reason, a streaming audio recording system is designed and sent via Bluetooth® Low Energy (BLE) to a mobile phone, which allows the incorporation of panic detection in the voice to alert through a portable device, of an attack or aggression that is occurring against the user. On the other hand, the audio acquisition system has been used to design and develop a system that optimizes and debugs the recordings made in an anechoic chamber for the training of the algorithms that detect voice stress. Two protocols have been defined for communication in this system, one wireless via Bluetooth® Low Energy (BLE), and another wired via a 10-meter USB cable. The achievement of this Final Degree Project has lasted 10 months, and in a summarized and very general way, we can say that it has been possible to unify the work in the high levels of abstraction, generation of algorithms for the audio processing, with the lowest and closest ones to the phisical and connection layers, for the acquisition, preprocessing and transmission of this one, through the most current electronic components and communication protocols demanded in the technological applications of sensor networks (MEMS, Bluetooth® Low Energy ..).
This Final Degree Project arises from the need to reduce, but above all prevent, the high rate of violence and sexual aggression against women that exists in any region of the world. For this reason, a streaming audio recording system is designed and sent via Bluetooth® Low Energy (BLE) to a mobile phone, which allows the incorporation of panic detection in the voice to alert through a portable device, of an attack or aggression that is occurring against the user. On the other hand, the audio acquisition system has been used to design and develop a system that optimizes and debugs the recordings made in an anechoic chamber for the training of the algorithms that detect voice stress. Two protocols have been defined for communication in this system, one wireless via Bluetooth® Low Energy (BLE), and another wired via a 10-meter USB cable. The achievement of this Final Degree Project has lasted 10 months, and in a summarized and very general way, we can say that it has been possible to unify the work in the high levels of abstraction, generation of algorithms for the audio processing, with the lowest and closest ones to the phisical and connection layers, for the acquisition, preprocessing and transmission of this one, through the most current electronic components and communication protocols demanded in the technological applications of sensor networks (MEMS, Bluetooth® Low Energy ..).
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Procesamiento de voz, Comunicaciones inalámbricas, Violencia de género, Violencia sexual, Mujeres, Transmisión de audio