基于Nucleus的通信终端中AT指令模块的设计与实现  

Design and Implement of AT Command Module In the Communication Terminal of Nucleus Syetem

作　　者：段亚林[1] 谢永斌[1] 

机构地区：[1]西安邮电大学通信与信息工程学院,西安710061

出　　处：《计算机测量与控制》2015年第11期3744-3746,共3页Computer Measurement &Control

基　　金：大唐电信TD-LTE通信传输模块研制项目(LCSK14063010)

摘　　要：随着LTE技术的不断发展,军事通信领域的通信终端产品也需要更新、升级;通信终端模块(CTM,communication transmission module)是一款嵌入式的TD-LTE数据卡终端产品;AT指令模块用来实现CTM与PC机之间的数据传输与控制;提出了CTM中AT指令模块的软件设计方案,采用模块化的设计方法,统一上层应用接口,实现了应用程序与Nucleus平台的衔接,提高了应用程序的可移植性;AT指令的函数匹配处理流程采用分类查找法,简化了AT指令的查找过程,提高了查找效率;最后搭建测试环境,验证了AT指令模块的功能,以上方法在实际开发和应用中都具有良好的扩展性、通用性和可移植性。With the development of LTE technology,the terminal products in realm of military communications needs updating,CTM is an embedded LTE data card terminal product.AT command module is used to implement data transmission and control between CTM and PC.This paper proposes the software design scheme of AT command module in CTM,using modularized design methods,and unifying the upper application program interface,this method realizes the cohesion between application and platform,improving the application program portability;Processing flow of function matching of AT command uses the classification search method,simplifying the finding process of AT command,improving the finding efficiency.Finally,building the test platform,the function of the AT command module verified.In reality,the above methods has great scalability,commonality and portability in the products＇ development and application.

关 键 词：终端 AT指令 软件设计 模块化 通信传输模块 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]