| This paper introduces the implementation method and process of a kind of embedded Linux system based on ARM platform which integrates fax and voice function in it.This paper mainly introduces the fax and voice communication system on the basis of embedded image processing and character recognition,OCR system and construction of Qt UI system and implementation method.The embedded device is used to be a fax terminal which takes the place of traditional mechanical to communicate with portable military communications satellite station.The device have many functions such as fax communication,voice communication,serial port communication and conversion.The traditional fax machine have many shortcomings.For exsample,it is not portable,large consumption,can not manage and compile fax file.In order to improve it,I designed this embedded device.Why I choose the embedded platform to develop a fax machine?Because the embedded platform have many advantages,such as software and hardware can be cut,small volume,strong specificity,real-time multitasking.So I can put fax-voice communication system,OCR system,Qt UI system together to form a multifunctional system.The implementation of this device is based on the embedded system in which fax-voice module and ARM controller are combined.AT commands and efax are used as the underlying software to build the fax and voice communication system.Besides,I use OpenC V to process images and use Tesseract-OCR engine to transform fax images into texts.Finally,based on Qt designed functional UI system to dispatching fax voice system and OCR system and provides a good interaction.The embedded fax and voice machine is a combination of paperless fax technology and embedded technology.It integrates the advantages of both paperless fax technology and the embedded technology.This device can make the communication and office with portable satellite station become more convenient and efficient. |
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