The data communicating between the data sampling unit and the computer adopts RS485 fieldbus. At the same time, the communication protocols and RS485 communication interface are designed.
前端数据采集装置和后台上位机之间数据通信采用RS485总线，设计了RS485通信接口电路和通信协议。
Because this system USES computer as center control unit, so sampling, analyzing and data processing are more easy.
由于采用了计算机作为中央处理单元，使采样分析处理数据更为灵活。
Method: We adopted different level and wholly type sampling and letter investigation for 242 person who works in 84 medical unit, We analyzed 225 people's data (92. 97% ) .
方法：采用分层抽样与整体抽样对84个医疗单位242人进行信访调查，并对资料完整的225人（92.97%）进行分析。
The hardware sampling unit of the monitor system is constituted by the data gathering module, including digital input module and analog input module, which are connected by the RS-485 main line form.
系统的硬件采样部分由数据采集模块(包括模拟量输入模块和数字量输入模块)构成，各模块间以RS - 485总线形式进行连接。
The BCI consists mainly of three parts: a virtual keyboard consisting of 36 buttons, a EEG-sampling unit and a data processing and target letter recognizing unit.
该BCI主要由三部分构成：带有36个键的虚拟键盘，EEG数据采集单元，数据处理和目标字符识别单元。
A data sampling system used for on-line monitoring the condition of turbo-generator unit is introduced. The hardware structure, work principle and main function of the system is analyzed.
介绍了汽轮发电机组振动在线状态监测系统数据采集器的硬件构成、工作原理和主要功能。
A data sampling system used for on-line monitoring the condition of turbo-generator unit is introduced. The hardware structure, work principle and main function of the system is analyzed.
介绍了汽轮发电机组振动在线状态监测系统数据采集器的硬件构成、工作原理和主要功能。
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