结构检测数据的无线传输系统

在结构试验中,不论是实验室试验还是工程现场检测,都存在着数据采集布线复杂的问题,尤其对于空间尺度较大的结构试验(如实验室大尺寸和足尺结构试验,工程结构的现场动力检测等),这一问题更加突出,有时造成了不能同步对各测点进行数据采集。本文根据结构试验数据采集对采样速率、被测信号的频率量程、同步精度等技术要求,对应用于结构试验无线数据采集系统中的几种无线数据传输技术各自的优劣性进行了比较,综合提出了结构试验无线数据采集系统的可行性方案。

THE WIRELESS DATA TRANSFERRING SYSTEM OF STRUCTURE TESTING

No matter in laboratory experiment or measurement in site,it is very difficult to set lines to obtain data needed in structural tests.This question is more protruding especially in those structural tests which are of large size(such as large size or full size structural test in laboratory,or dynamic measurement of structure in site etc.).Sometimes it is impossible to obtain data of several points measured synchronously.This article,according to the structural test data acquisition to sampling speed and by the frequency measuring distance and synchronous precision of survey signal etc.specifications,compared several kinds of wireless data transferring systems of structure testing technology(chiefly about IEEE802.11,DECT's technology and blue tooth technology),and point out their advantages and disadvantages respectively when they are applied in the wireless data transferring system of structure testing.Putting forward the feasibility scheme of wireless data transferring systems of structure testing generally.