1 km以浅多参量混合编帧式数据采集系统设计  

Design of Multi-parameter Mixed Framing Data Acquisition System for Kilometer to Shallow Area

作　　者：郑永秋[1] 王旋 刘亚兵 景俊民 张浩凌 管今哥 臧俊斌[1] ZHENG Yong-qiu;WANG Xuan;LIU Ya-bing;JING Jun-min;ZHANG Hao-ling;GUAN Jin-ge;ZANG Jun-bin(North University of China,Key Laboratory of Instrumental Science and Dynamic Testing,Ministry of Education,Taiyuan 030051,China;Equipment Management Department,Huayang New Material Technology Group Co.,Ltd.,Yangquan 045008,China)

机构地区：[1]中北大学,仪器科学与动态测试教育部重点实验室,山西太原030051 [2]华阳新材料科技集团有限公司装备管理部,山西阳泉045008

出　　处：《仪表技术与传感器》2022年第2期65-69,74,共6页Instrument Technique and Sensor

基　　金：国家自然科学基金项目(61727806,61771434,62005251,62001430);国家重点研发计划(2019YFB2004800);中北大学青年学术带头人支持计划项目(QX201804);2020年度山西省研究生教育创新项目(2020BY101)。

摘　　要：km级以浅水下多参量数据同步采集是海洋观测装置的关键技术,全海深海洋剖面仪子设备在越过1 km以浅海域释放的过程中,需要水下多参量信息的实时采集传输并存储。以FPGA为核心时序控制芯片,采用RS232、RS485数字接口实现对温度、盐度、深度、多轴姿态等数据的接收;采用双通道同步模数转换芯片ADS8353,设计实现2路湍流数据的同步采集。根据所接收的数字量信号和模数转换采集速率,设计了可变长度的混合帧传输结构,实现了多参量数据不同传输速率在数据实时传输和存储上的帧匹配。该设计电路和数据帧结构传输模式在实验初期应用于多参量海洋剖面仪的水库试验,实验结果表明,实时传输数据和存储回读数据无丟数,验证了设计的可靠性,能够广泛地应用于各种海洋环境监测和深海深资源探测的系统和建设中。Synchronous acquisition of kilometer-level multi-parameter data in shallow water is a key technology for marine observation devices.When the full-depth marine profiler device is released in shallow water over 1000 meters,acquire,transmit and storage underwater multi-parameter information was needed in real time.With FPGA as the core timing control chip,RS232 and RS485 digital interfaces were adopted to receive data such as temperature,salt,depth and multi-axis attitude.And dual-channel synchronous analog-to-digital conversion chip ADS8353 was used to design and realize the synchronous acquisition of two-channel turbulence data.According to the received digital signal and conversion rate for analog to digital signal,a mixed frame transmission structure with variable length was designed,the frame matching between simultaneous interpreting and storing data for different transmission rates of multi parameter data was successfully manipulated.The designed circuit and data frame transmission mode were applied to the reservoir test of the multi parameter ocean profiler at the beginning of the experiment.And all the experimental results show that there is no loss of real-time data transmission and stored readback data,which verifies the reliability of the design,and can be widely used in various marine environment monitoring and deep-sea resources detection systems and construction.

关 键 词：FPGA 多参量 数据采集 数据传输 FLASH存储 混合编帧 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]