A smart information transmission system in residence based on bus technology was designed, and the design of its hardware and software were emphatically analyzed.
设计了基于总线技术的住宅内智能信息传输系统，着重分析了其硬件、软件部分的设计。
Fieldbus intelligent field devices are connected and digital automation system, two-way transmission, multi-branch structure of the communications network, based on smart meters.
现场总线则是衔接智能现场设备和主动化系统地数字式、双向传输、多分支构造地通讯收集，其根底是智能仪表。
It presents smart card system of session key distribution for communications safety to net video conference transmission, resolves user identity authentication with security.
为网络视频会议传输提供有效的通信安全，采用一个会议密钥分配的智能卡系统，来解决使用者身份认证和通信安全问题。
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