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分布式同步数据采集系统的研究与设计

更新时间:2020-07-09 09:06:05 大小:259K 上传用户:songhuahua查看TA发布的资源 标签:数据采集系统 下载积分:5分 评价赚积分 (如何评价?) 收藏 评论(0) 举报

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针对广域分布环境中,多台数据采集仪时间同步的难题,根据GPS授时原理,应用GPS长期稳定高精度GPS秒脉冲,设计了一种高精度的同步数据采集系统。系统核心由数据采集单元、微控制器、复杂可编程逻辑、带有秒脉冲输出的GPS模块组成。实验带有8路并行的高速AD通道,结果证实了该采集功能的可靠性,异地同类型设备的时间同步不确定度约为5μs。

In order to solve the problem of time synchronization of more than one data acquisition instruments in the wide - area - distributed environment, according to the principle of GPS and the GPS second - pulse with the long stability and high - precision, a high precision system of synchronous data acquisition is designed. The system consists of data ac- quisition unit, micro -controller, complex programmable logic device and GPS module with second--pulse output. The ex- periments with 8 - channel parallel high - speed AD sampling, the result shows that the acquisition function is reliable. The time synchronization uncertainty of the same type of device in different place is within 5 txs.

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