serial format

The GPS IRIG-B code time system encapsulates the GPS satellite signal and modernized IRIG-B ( B type format of Inter-Range Instrumentation Group) serial time code and connect them to the computer through a PCI bus, thus offering accurate timing service.

GPSIRIG-B码时间系统把GPS卫星信号和现代化靶场间通用的IRIG-B（Inter-RangeInstrumentationGroup，靶场仪器组B型格式）串行时间码封装于一体，通过PCI总线与计算机联系起来，提供高精度的定时服务。

Conversely, streaming may not be the best format for every serial story.

相反，流媒体并不适合所有种类的连续剧。

The paper settles the problems of Ethernet communication based on Fins format, Controller Link network communication and protocol macro communication between locale controller and serial device and develops the controlling network program with the help of CX-Programmer 4.0, a kind of PLC programmer software.

解决了基于Fins格式的以太网通信、Controller link网络通信以及区域控制器与现场串口通信设备的协议宏通信，并使用PLC编程软件CX-Programmer4.0编写了控制网络程序。

Existing systems commonly used serial communication. Different systems make different definitions of data format, transmission speed, transmission steps, error correction mode and control characters. The nonstandard communication protocol causes problems of poor compatibility.

现有系统普遍采用串行通信，不同的系统对数据格式、传送速度、传送步骤、纠错方式以及控制字符定义等问题做出的规定并不统一，存在通信协议不规范、兼容性差的问题。

By describes the characteristics of different data transmission schemes, system communication model and serial/ LAN communication frame format are presented. Finally, this paper analyzes the technical difficulties in the research process of POS terminals and proposes multi-threaded parallel processing method based on Qt/ Embedded.

提出了系统的通信模型，针对不同的数据传输方案，设计了标准串口和局域网传输的通信帧格式。