基于ZigBee的低延时PDA网络系统设计与实现
发布时间：2019-03-17 12:38
【摘要】：传统的自助信息服务系统(PDA)终端平台设备只具有简单的读写功能,网络互动能力较差,在文件传输中出现较大的数据流时会造成明显的网络延时;设计并实现了基于ZigBee网络的终端PDA平台系统设计;在平台设计中,引入了主从CPU轮流方式,分担设备交互中产生的海量数据流,在外围电路中,设计了专用的SD存储卡,便于数据移植;在原有的平台无线传输模块中,进行了链路升级,采用分级路由机制,有效降低数据包的路由延时。并以教学PDA为例进行开发与试验,系统测试表明:文章设计的自助信息服务系统PDA网络下行发送数据在10ms可以完成,误码率为0.001%,上行发送数据成功率高达99.7%;证明该系统具有稳定的网络性能与实用性;具有较高的网络稳定性和很强的实用价值。
[Abstract]:The traditional self-service information service system (PDA) terminal platform device only has simple read-write function, the network interaction ability is poor, when the large data stream appears in the file transmission, it will cause obvious network delay. The system design of terminal PDA platform based on ZigBee network is designed and implemented. In the platform design, the master-slave CPU rotation mode is introduced to share the massive data flow generated by the equipment interaction. In the peripheral circuit, a special SD memory card is designed to facilitate the data transfer. In the original platform wireless transmission module, the link is upgraded and hierarchical routing mechanism is adopted to effectively reduce the routing delay of packets. And take the teaching PDA as an example to carry on the development and the experiment, the system test shows: the self-help information service system PDA network downlink transmission data can be completed in the 10ms, the error rate is 0.001%, the up-link sending data success rate is as high as 99.7%; It is proved that the system has stable network performance and practicability, high network stability and strong practical value.
【作者单位】： 平顶山学院软件学院;
【分类号】：TP368.32
，
本文编号：2442308
[Abstract]:The traditional self-service information service system (PDA) terminal platform device only has simple read-write function, the network interaction ability is poor, when the large data stream appears in the file transmission, it will cause obvious network delay. The system design of terminal PDA platform based on ZigBee network is designed and implemented. In the platform design, the master-slave CPU rotation mode is introduced to share the massive data flow generated by the equipment interaction. In the peripheral circuit, a special SD memory card is designed to facilitate the data transfer. In the original platform wireless transmission module, the link is upgraded and hierarchical routing mechanism is adopted to effectively reduce the routing delay of packets. And take the teaching PDA as an example to carry on the development and the experiment, the system test shows: the self-help information service system PDA network downlink transmission data can be completed in the 10ms, the error rate is 0.001%, the up-link sending data success rate is as high as 99.7%; It is proved that the system has stable network performance and practicability, high network stability and strong practical value.
【作者单位】： 平顶山学院软件学院;
【分类号】：TP368.32
，
本文编号：2442308
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