TLJ型土工离心机数据采集系统更新升级  

Update and upgrade of data acquisition system for TLJ geotechnical centrifuge

作　　者：翁效林[1,2] 胡继波 谢永利[1,2] 岳夏冰[1,2] 吴昊 张志强[3] WENG Xiaolin;HU Jibo;XIE Yongli;YUE Xiabing;WU Hao;ZHANG Zhiqiang(Highway College of Chang'an University,Xi'an 710064,China;Key Laboratory of Highway Engineering for Special Regions,Ministry of Education,Chang'an University,Xi'an 710064,China;School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]长安大学公路学院,陕西西安710064 [2]长安大学特殊地区公路工程教育部重点实验室,陕西西安710064 [3]西南交通大学土木工程学院,四川成都610031

出　　处：《岩土工程学报》2024年第S01期59-63,共5页Chinese Journal of Geotechnical Engineering

基　　金：国家自然科学基金项目(42277151);国家高铁联合基金项目(U1934213)。

摘　　要：长安大学TLJ-3土工离心机自2004年建成投入使用以来,已经运行18 a,为该系列运行时间最长的土工离心机。由于20世纪初电子设备集成性较低等原因,早期的TLJ型离心机数据采集系统逐渐无法满足现有试验数据的高精度、大数据量吞吐等采集需求。基于无线传输技术消除了电滑环接触电阻变化对数据传输影响的问题,采用光纤集成多个传感器使得传感器小型化,采用非接触式位移场扫描实现地表的全断面监测,基于Open CV图像拼接技术解决了图像畸变的问题。升级改造后的TLJ-3土工离心机已服务于若干研究项目,性能良好。The TLJ-3 geotechnical centrifuge from Chang'an University has been in operation for 18 years since it was built and put into use in 2004,making it the longest running geotechnical centrifuge in this series.Due to the low integration of electronic devices at the beginning of the 21st century,the early data acquisition systems of TLJ centrifuge gradually could not meet the high-precision and large data throughput collection needs of the existing experimental data.Based on the wireless transmission technology,the problem of data transmission caused by changes in contact resistance of electric slip rings is eliminated.The fiber optic integration of multiple sensors is used to miniaturize the sensors,non-contact displacement field scanning is used to achieve full section monitoring of the ground surface,and the Open CV image stitching technology is used to solve the problem of image distortion.The upgraded TLJ-3 geotechnical centrifuge has served several research projects with good performance.

关 键 词：土工离心机 数据采集系统 升级改造 无线传输技术 

分 类 号：TU411[建筑科学—岩土工程]