基于Hi3510和无线发送模块的视频传输设计

Design of video transmission based on Hi3510 and wireless transmission module

为了在嵌入式系统中增加图像数据的无线传输功能，实现终端实时监控的目的，设计了一种嵌入式系统下基于3G无线模块的视频图像数据传输系统。该系统以Hi3510嵌入式Linux系统为平台，采用DTM6211无线发送模块实现视频数据的无线发送。详细介绍了系统各组成部分的功能与实现方法，给出了系统的整体结构框图，程序流程图和嵌入式Linux下无线发送模块设备驱动解决办法。实验结果表明，该系统上行数据的传输速度在150～200KB／s，与传统2．5G技术的短信方式监控方法相比，数据速度得到很大提高，并实现实时监控。

In order to add the wireless communications functions of image data in embedded systems and achieve the purpose of terminal real-time monitoring, this paper designs a embedded system which adds 3G wireless modules to send image data. By Hi3510 embedded linux system as a platform, which added to the DTM6211 wireless transmission module, this system achieved sending the video data wirelessly.This paper introduced the components＇ functions and implementation method.At the same time it gave the overall structure of the system, the program flowcharts and embedded Linux device driver solutions about the wireless transmission module. The result shows that the system can realize real-time monitoring and its uplink data transmission speed is 150-200KB/s.Compared to the method of text message monitoring with traditional 2.5G technology,the data speed is greatly improved.