|
|
|
| Fusion Method of Ultrasonic Gas Flowmeter Based on Kalman Filter |
| LIU Bo,XU Ke-jun,MU Li-bin,TIAN Lei,SHEN Zi-wen,LI Jian-bo |
| School of Electrical and Automation Engineering, Hefei University of Technology, Hefei, Anhui 230009, China |
|
|
|
|
Abstract Aiming at the problem of how to integrate multiple traffic results from multiple channels in gas ultrasonic flowmeter, a fusion method based on Kalman filter is proposed. The multichannel ultrasonic gas flowmeter is considered to be a combination of several mono flow meters. According to the statistical rule of each channel calculation result, the weight coefficient of the flow result of each channel in the final output is automatically adjusted, The fusion method consumes less computational resources to achieve the judgment and processing of the outliers in the flow results, so that the flow output more stable. The algorithm is realized in real time on the ultrasonic gas flowmeter signal processing system with DSP and FPGA as the core. And real flow experimental results demonstrate the effectiveness of the method.
|
|
Received: 23 June 2017
Published: 06 November 2018
|
|
|
|
Corresponding Authors:
Ke-Jun Xu
E-mail: dsplab@hfut.edu.cn
|
|
|
|
［1］王雪峰, 唐祯安. 超声波气体流量计的管道模型仿真和误差分析［J］.仪器仪表学报, 2009, 30(12):2612-2618.
［2］张晓钟,孟凡芹,宋生奎. 基于神经网络的超声波轻质燃油质量流量测量方法研究［J］. 计量学报,2017,38(2):205-208.
［3］陈洁, 余诗诗, 李斌,等. 基于双阈值比较法超声波流量计信号处理［J］. 电子测量与仪器学报, 2013, 27(11):1024-1033.
［4］李志军, 赵刚, 赵连环,等. 基于DSP的时差法气体超声波流量计的设计［J］. 仪表技术与传感器, 2014(3):17-19.
［5］Chen Q, Li W H, Wu J T. Realization of a multipath ultrasonic gas flowmeter based on transit-time technique.［J］. Ultrasonics, 2014, 54(1):285-290.
［6］Tang X, Xie X, Zhang H, et al. Data integration for multi-path ultrasonic flowmeter based on Levenberg-Marquardt algorithm［J］. Science Measurement & Technology Iet, 2015, 9(8):909-920.
［7］Zhao H, Peng L, Takahashi T, et al. ANN based data Integration for Multi-Path Ultrasonic Flowmeter［J］. IEEE Sensors Journal, 2014, 14(2):362-370.
［8］Hu L, Qin L, Mao K, et al. Optimization of Neural Network by Genetic algorithm for Flowrate Determination in Multipath Ultrasonic Gas Flowmeter［J］. IEEE Sensors Journal, 2016, 16(5):1158-1167.
［9］李跃忠, 李昌禧, 华志斌. 基于神经网络的多声道超声气体流量计研究［J］. 仪器仪表学报, 2007, 28(12):2280-2284.
［10］赵伟国, 赵雪松, 黄朝川. 小管径超声波流量计的仿真与设计［J］. 计量学报, 2012, 33(6):513-518.
［11］陈炜刚. 气体超声波流量计非理想流场分析与补偿方法［D］. 杭州:浙江大学, 2015.
［12］陈书洗, 倪礼宾,朱翠华. 气体超声波流量计流速修正系数的确定及其计算机在线处理［J］. 计量学报, 1991,12(1):72-76.
［13］方敏, 徐科军, 汪伟,等. 基于FPGA和DSP的气体超声流量计驱动和数字信号处理系统［J］. 计量学报, 2017, 38(2):200-204.
［14］鲍敏. 影响气体超声波流量计计量精度的主要因素研究［D］. 杭州:浙江大学, 2004.
［15］汪伟, 徐科军, 方敏, 等. 一种气体超声波流量计信号处理方法研究［J］. 电子测量与仪器学报, 2015, 29(9):1365-1373.
［16］张亮, 孟涛, 王池, 等. 蝶阀后多声道超声流量计安装影响实验研究［J］. 计量学报,2012,33(5A):120-125.
［17］何平. 剔除测量数据中异常值的若干方法［J］. 航空计测技术, 1995, 15(1):19-22.
［18］国家质量监督检验检疫总局. JJG 1030-2007 超声流量计 ［S］. 北京:中国标准出版社, 2007. |
|
|
|
2018, Vol. 39 
