基于嵌入式系统的IPPBX的设计  

Design of IPPBX based on embedded system

作　　者：杨悦梅[1] 陈平山 冯冬芹[3] 

机构地区：[1]杭州科技职业技术学院信息工程学院,浙江杭州311402 [2]杭州奕霖传感科技有限公司,浙江杭州310012 [3]浙江大学控制科学与工程学系,浙江杭州310027

出　　处：《现代电子技术》2015年第12期66-69,73,共5页Modern Electronics Technique

基　　金：国家自然科学基金项目(61433006);浙江大学工业控制技术国家重点实验室开放课题(ICT1241)

摘　　要：IPPBX利用包交换原理,在以太网上实现传统PBX的功能,有效地解决了传统PBX的不足,具有功能更强大、服务更全面、成本更低廉等优势。在此介绍IPPBX典型组网模式,给出基于MPC8250的IPPBX硬件系统各模块系统设计原理和系统软件设计原理,并对主控模块的协议转换软件做了相关分析。测试表明,该设计能够达到200路的并发使用,语音质量优秀。With the packet exchange principle,IPPBX can realize the functions of the traditional PBX on Ethernet and overcome the insufficiency of traditional PBX effectively. It has powerful functions,comprehensive services with less cost. The typical networking mode of IPPBX is introduced in this paper. The design principles of each module system MPC8250 hardware system based on IPPBX and the software system of the system are given. The protocol conversion software of main control module is also analyzed. The test result shows that the system can achieve simultaneous processing of 200 calls and its voice quality is excellent.

关 键 词：MPC8250 硬件系统 协议转换软件 

分 类 号：TN911.34[电子电信—通信与信息系统]