基于FlexRay总线的静态段带宽利用率研究

doi:10.16180/j.cnki.issn1007-7820.2019.06.003

电子科技 ›› 2019, Vol. 32 ›› Issue (6): 12-16.doi: 10.16180/j.cnki.issn1007-7820.2019.06.003

基于FlexRay总线的静态段带宽利用率研究

张育贵¹,胡雪晨¹,王义²

1. 贵州大学大数据与信息工程学院,贵州贵阳 550025
2. 贵州师范大学物理与电子科学学院,贵州贵阳 550025

收稿日期:2018-06-10 出版日期:2019-06-15 发布日期:2019-07-01
作者简介:张育贵(1993-),男,硕士研究生。研究方向:自适应控制、人工神经网络。|胡雪晨(1993-),男,硕士研究生。研究方向:材料大数据。|王义(1957-),男,教授。研究方向:计算机网络控制系统、嵌入式系统设计、现代汽车电子技术等。
基金资助:
国家自然科学基金(61462015);贵州省国际科技合作计划项目(黔科合外G字[2014]7007号)

Research about Bandwidth Utilization of Static Segment Based on FlexRay Bus

ZHANG Yugui¹,HU Xuechen¹,WANG Yi²

1. School of Big data & Information Engineering,Guizhou University,Guiyang 550025,China
2. School of Physics and Electronics Science,Guizhou Normal University,Guiyang 550001,China

Received:2018-06-10 Online:2019-06-15 Published:2019-07-01
Supported by:
National Natural Science Foundation of China(61462015);Guizhou Provincial International Science and Technology Cooperation Program Project(GKWG[2014]No.7007)

摘要/Abstract

摘要：

为提高FlexRay网络的带宽利用率,文中对FlexRay静态段参数和传输中消息的长度进行了研究。针对静态段参数数学模型和静态消息帧长度差异过大造成大量带宽浪费的情况,分别提出了MATLAB的优化函数和将部分较长消息分割成两个长度相同消息进行分配方法。文中阐述了将FlexRay静态段数学模型转化为非线性规划的问题,所提的分配方法考虑了分割后的消息在编码过程中增加的无效比特数对整个网络的影响。数值实验表明,该方法可以在理论最优带宽利用率的基础上实现进一步提高。

关键词: FlexRay总线, 静态段, 带宽利用率, 消息分割, 优化函数, 消息编码

Abstract:

In order to improve the bandwidth utilization ratio of the Flexray network, this study analyzed the static segment parameters of Flexray and the length of the message in transmission. To reduce the bandwidth waste resulting from the great difference between mathematical model and static message length, the optimization function of MATLAB and the method of dividing the long messages into two messages of the same length were proposed respectively. This paper illustrated the problem of converting mathematical model of static segment in Flexray network to nonlinear programming.The proposed distribution methods considered the effect of increasing useless bits in the coding process on the entire network. Numerical experiments showed that this method could be further improved based on theoretical maximum utilization of bandwidth.

Key words: FlexRay bus, static segment, bandwidth utilization, message segmentation, optimization function, message encoding

中图分类号:

TP393

张育贵,胡雪晨,王义. 基于FlexRay总线的静态段带宽利用率研究[J]. 电子科技, 2019, 32(6): 12-16.

ZHANG Yugui,HU Xuechen,WANG Yi. Research about Bandwidth Utilization of Static Segment Based on FlexRay Bus[J]. Electronic Science and Technology, 2019, 32(6): 12-16.

图/表 5

图1

图2

图3

表1

表2

参考文献 16

[1]	Lange R, Vasques F, Oliveira R S D , et al.A scheme for slot allocation of the FlexRay Static Segment based on response time analysis[J]. Computer Communications, 2015,63(C):65-76. doi: 10.1016/j.comcom.2015.02.016
[2]	Wang W, Postoyan R . Emulation-based stabilization of networked control systems implemented on FlexRay[J]. Automatica, 2015,59(C):73-83. doi: 10.1016/j.automatica.2015.06.010
[3]	程驰, 帅志斌, 李建秋 , 等. 车载网络通讯协议FlexRay网络的分析及搭建[J]. 汽车安全与节能学报, 2013,4(1):75-81. doi: 10.3969/j.issn.1674-8484.2013.01.011
	Cheng Chi, Shuai Zhibin, Li Jianqiu , et al. Analysis and construction of vehicle network communication protocol FlexRay network[J]. Journal of Automotive Safety and Energy, 2013,4(1):75-81. doi: 10.3969/j.issn.1674-8484.2013.01.011
[4]	韩强, 雷艾, 牛德青 . FlexRay静态段优化算法[J]. 兵工自动化, 2011,30(3):42-44.
	Han Qiang, Lei Ai, Niu Deqing . FlexRay static segment optimization algorithm[J]. Ordnance Industry Automation, 2011,30(3):42-44.
[5]	赵睿, 秦贵和, 范铁虎 . FlexRay通信协议的总线周期优化[J]. 计算机应用研究, 2010,27(10):3847-3850.
	Zhao Rui, Qin Guihe, Fan Tiehu . Bus cycle optimization of FlexRay communication protocol[J]. Application Research of Computers, 2010,27(10):3847-3850.
[6]	Wang Peng, Tang Guojian, Liu Luhua , et al. Nonlinear hierarchy-structured predictive control design for a generic hypersonic vehicle[J].Science China:Technological Sciences, 2013(8):2025-2036.
[7]	龚志鹏, 陈特放, 邹复民 , 等. 基于FlexRay静态段快速最优调度算法[J]. 电子与信息学报, 2015,37(5):1200-1206. doi: 10.11999/JEIT140933
	Gong Zhipeng, Chen Tefang, Zou Fumin , et al. Fast optimal scheduling algorithm based on FlexRay static segment[J]. Journal of Electronics & Information Technology, 2015,37(5):1200-1206. doi: 10.11999/JEIT140933
[8]	Peng Yonggang, Wang Jun, Wei Wei . Model predictive control of servo motor driven constant pump hydraulic system in injection molding process based on neurodynamic optimization[J].Journal of Zhejiang University-Science C:Computers & Electronics, 2014(2):139-146.
[9]	张凤登, 陈兴隆 . FlexRay总线静态段的负载率优化研究[J]. 汽车工程, 2016,38(1):97-101.
	Zhang Fengdeng, Chen Xinglong . Research on load rate optimization of static section of FlexRay bus[J]. Automotive Engineering, 2016,38(1):97-101.
[10]	刘雅旎, 张凤登 . 车载FlexRay网络协议静态段优化研究[J]. 电子科技, 2015,28(10):31-33.
	Liu Yaxi, Zhang Fengdeng . Study on static segment optimization of vehicle FlexRay network protocol[J]. Electronic Science and Technology, 2015,28(10):31-33.
[11]	曹三峰 . 汽车FlexRay总线静态段调度方法及其实现研究[D]. 合肥:合肥工业大学, 2015.
	Cao Sanfeng . Research on static segment scheduling method and its implementation of automotive FlexRay bus[D]. Hefei:Hefei University of Technology, 2015.
[12]	刁新超 . FlexRay汽车网络的时隙分配问题研究[D]. 合肥:合肥工业大学, 2011.
	Diao Xinchao . Study on time allocation of FlexRay automotive networks[D]. Hefei:Hefei University of Technology, 2011.
[13]	王鹏杰 . FlexRay总线平台构建及性能研究[D]. 武汉:武汉理工大学, 2012.
	Wang Pengjie . Construction and performance research of FlexRay bus platform[D]. Wuhan:Wuhan University of Technology, 2012.
[14]	张建军, 于萍, 张本宏 , 等. 基于带宽利用率FlexRay静态段研究[J]. 计算机应用研究, 2012,29(12):4574-4576.
	Zhang Jianjun, Yu Ping, Zhang Benhong , et al. Study on FlexRay static segment based on bandwidth utilization[J]. Application Research of Computers, 2012,29(12):4574-4576.
[15]	王跃飞, 张纯鹏, 张利 , 等. 基于最小时间碎片的汽车FlexRay网络设计[J]. 电子测量与仪器学报, 2014,28(3):299-305.
	Wang Yuefei, Zhang Chunpeng, Zhang Li , et al. Design of automotive FlexRay network based on minimum time debris[J]. Journal of Electronic Measurement and Instrument, 2014,28(3):299-305.
[16]	王刚, 丁天宝, 荣健 , 等. FlexRay网络中带宽利用率的理论研究[J]. 计算机应用, 2011,31(10):2634-2637. doi: 10.3724/SP.J.1087.2011.02634
	Wang Gang, Ding Tianbao, Rong Jian , et al. Theoretical research on bandwidth utilization in FlexRay network[J]. Computer Applications, 2011,31(10):2634-2637. doi: 10.3724/SP.J.1087.2011.02634

实例	带宽利用率U
实例	优化前	理论最优	优化后
实例1	0.118 2	0.199 8	0.220 2
实例2	0.070 8	0.215 5	0.224 6
实例3	0.079 1	0.256 0	0.308 3
实例4	0.058 0	0.329 5	0.334 8
实例5	0.032 9	0.285 4	0.304 5
实例6	0.232 1	0.358 9	0.377 3

基于FlexRay总线的静态段带宽利用率研究

Research about Bandwidth Utilization of Static Segment Based on FlexRay Bus

RichHTML

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

图/表 5

参考文献 16

相关文章 1

Metrics

本文评价

推荐阅读 10