Proyecto de soluciones inalámbricas digitales (ART722S)

Written by: Newton C. Braga
Category: Artículos Técnicos y Proyectos

En dos artículos en los que describimos los montajes de los transmisores para espionaje Spyfone I y Spyfone II, utilizamos la tecnología analógica tradicional que es bastante accesible, aunque se supere. A pesar de ofrecer buenos resultados dentro de lo que proponemos, hoy existen tecnologías mucho más avanzadas para soluciones inalámbricas usando transmisión digital. Texas Instruments (www.ti.com) ofrece diversas plataformas para el desarrollo de soluciones digitales inalámbricas y es de las que trataremos en este artículo.

Los sistemas de comunicación digital para cortas distancias presentan innumerables ventajas en relación a los analógicos antiguos, siendo por eso, utilizado prácticamente en todos los tipos de equipos que utilizan esta modalidad de comunicación.

Además de poder evitar las señales interferentes, que ocurren en ambientes ruidosos, son prácticamente a prueba de interceptación y tienen una capacidad de inclusión de información muy grande.

Así, además de la posibilidad de transmitir sonido con gran fidelidad en el formato digital, datos e incluso imágenes pueden ser transferidas de un local a otro.

Existen hoy más de una docena de tecnologías diferentes que pueden ser utilizadas en las comunicaciones inalámbricas a cortas distancias, tales como:

• Estándar IEEE 802.15

• Personal Area Networks (PAN)

• RF Sub-1 GHz

• RF 2.4 GHz

• RFID / NFC

• GPS

 

Estas tecnologías se aplican en una gran cantidad de aplicaciones prácticas, tales como:

• Sistemas de alarma y seguridad

• Aplicaciones automotrices

• Automatización residencial e iluminación

• Medidas y control de energía

• Electrónica de consumo portátil

• Equipos médicos

• Controles remotos

• Sonido inalámbrico

 

El nuevo producto que el lector puede desarrollar con estos recursos es el Spyfone III, un espía electrónico indetectable y de excepcional calidad de sonido, y que, además, puede ser desactivado remotamente por una señal de control, en caso de amenaza de ubicación.

La elección de qué herramienta de desarrollo utilizar depende de la aplicación, resultando difícil para un diseñador menos experimentado hacer la elección.

Texas Instruments, además de las herramientas de desarrollo, tiene una documentación técnica que facilita el trabajo del diseñador en la elección de la solución ideal para su caso.

Se trata de un manual de 65 páginas en el que se detallan cada herramienta con sus aplicaciones, sus características y el acceso a la herramienta de desarrollo y kits.

El documento en PDF de 6 Mb, con el código slab056c, puede ser accedido en el siguiente enlace.

http://www.ti.com/lit/sg/slab056c/slab056c.pdf

Ver el índice que aborda este documento.

 


 

 

 

pcbway_012_2024

Buscador de Datasheets


N° de Componente 

Banco de Circuitos

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