液晶与显示2017，Vol.32Issue(5)：372-379,8.DOI:10.3788/YJYXS20173205.0372
多传感器动态参数实时采集与存储方法研究
Real-time collection and storage of multi-sensor dynamic parameters
摘要
Abstract
In order to solve the problems that the existing data acquisition system cannot have many channels, high speed and real-time storage at the same time, a real-time collection and storage method of multi-sensor dynamic parameters based on FPGA and large-capacity flash was proposed.The system took FPGA as the core processor to control and read the analog-to-digital conversion chip, added check bytes after the conversion, realized the high-efficiency data interaction with the flash through the double FIFO buffers, and used data back-up to increase storage reliability, then it took free-running interfaces between double flash to improve data storage speed.Finally, the core processor communicated with host computer by USB ports to achieve high-speed data transfer.The experimental results show that the acquisition-frequency of system can reach 2 MHz, the rate of real-time storage can come to 50 MByte/s with one Flash and 100 MByte/s with double Flash.Under the condition of strong vibration dynamic testing, this system can reliably collect the output signal from the sensor with the absolute error within 1 mV and without error rate, so it meets the requirements for stabilization, reliability, high precision and anti-interference ability.关键词
可编程逻辑器件/双FIFO/双Flash/实时存储/USBKey words
FPGA/double FIFO/double flash/real-time storage/USB分类
信息技术与安全科学引用本文复制引用
韩力,王世赞,王军,王磊,何昕..多传感器动态参数实时采集与存储方法研究[J].液晶与显示,2017,32(5):372-379,8.基金项目
江苏省普通高校研究生科研创新计划项目(No.KYZZ16_0480) （No.KYZZ16_0480）
苏州科技大学研究生创新项目(No.SKCX16_043) （No.SKCX16_043）
江苏省建设系统科技项目(No.2016ZD87) （No.2016ZD87）
苏州市科技发展计划(重点实验室)项目(No.SZS201609)Supported by Research Innovation Project for Ordinary University Graduates of Jiangsu Province (No.KYZZ16_0480) （重点实验室）
Suzhou University of Science and Technology Innovation Project (No.SKCX16_043) （No.SKCX16_043）
Science and Technology Project of Jiangsu Province Construction System(No.2016ZD87) （No.2016ZD87）
Suzhou Science and Technol Development Plan(Key Laboratory)(No.SZS201609) （Key Laboratory）
