Table of Content

25 September 2018, Volume 38 Issue 5

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Further result on convergence for a class of nonlinear integro-differential equations with initial value problems

WANG Peiguang, YANG Kaiyu, QIN Junhong

2018, 38(5):  449-453.  DOI: 10.3969/j.issn.1000-1565.2018.05.001

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A class of nonlinear integro-differential equations with initial value problems is investigated. By using the comparison principle and the method of quasilinearization, we obtain monotone iterative sequences of approximate solutions converging to the extremal solution with rate of order k(k≥2). The result extends the known one in the literature.

Bifurcation study of a class of nonlocal reaction diffusion equation

LI Congrui,CAO Jianzhi,BAO Junyan

2018, 38(5):  454-459.  DOI: 10.3969/j.issn.1000-1565.2018.05.002

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A Fisher-KPP equation with nonlocal competition term is considered, by using the Lyapunov-Schmidt reduction and singularity theory, some bifurcation problems with homogeneous Dirichlet boundary conditions are analyzed in detail.

VRP-IGMRES(m)algorithm based on incomplete orthogonalization

HAO Xuejing, YU Chunxiao, REN Cuihuan

2018, 38(5):  460-465.  DOI: 10.3969/j.issn.1000-1565.2018.05.003

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In order to solve large linear equations efficiently, based on the Generalized Minimal Residual with Variable Restart Parameter algorithm(VRP-GMRES(m)), a truncation-pattern Incomplete Generalized Minimal Residual with Variable Restart Parameter algorithm(VRP-IGMRES(m))is proposed using the truncation technology,namely, using incomplete orthogonal Arnoldi process to constructe the base vector of the Krylov subspace and the Hessenberg matrix. The convergence of the algorithm is proved by the relationship between the angle cosine and the modulus of the two successive iterated residual vectors. Finally, through numerical examples to analyze the influence of truncation index on computational accuracy and efficiency, it is found that VRP-IGMRES(m)algorithm can effectively improve the computation efficiency under the premise of guaranteeing the accuracy. The obtained optimal truncation ratio is about 0.1. Our work provides a new method for solving practical engineering problems.

Effect of absorption characteristic of multimode fiber cladding on the temperature properties of a SMS fiber structure

ZHANG Rongxiang, ZHANG Jianfei, ZHAO Xinmin, LI Honglian, LIU Tao, WANG Yu

2018, 38(5):  466-471.  DOI: 10.3969/j.issn.1000-1565.2018.05.004

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The theoretical model for analyzing the influence of the temperature-dependent absorption coefficient of multimode fiber cladding on the transmission spectrum of a single mode-multimode-single mode(SMS)fiber structure is founded based on multimode interference principle. The effect rule of absorption characteristics of multimode fiber cladding on the temperature properties of a SMS fiber structure is analyzed further by using the theoretical model. It is found that the absorption characteristic change of multimode fiber cladding only affects on the transmission loss of transmission spectra of a SMS fiber structure at different temperatures. And the change of transmission loss is more obvious when the rate of absorption- DOI:10.3969/j.issn.1000-1565.2018.05.004多模光纤包层吸收特性对SMS光纤结构温度特性的影响张荣香¹,张建飞¹,赵新民²,李红莲³,刘涛⁴,王羽¹(1.河北大学 物理科学与技术学院,河北 保定 071002;2.易县职业技术教育中心,河北 易县 074200;3.河北大学 质量技术监督学院,河北 保定 071002;4.华北电力大学 电子与通信工程系,河北 保定 071003)摘 要:基于模式干涉原理,建立了分析多模光纤包层吸收系数随温度变化对单模-多模-单模(SMS)光纤结构透射光谱影响的理论模型,利用此模型进一步分析了多模光纤包层吸收特性对SMS光纤结构温度特性的影响规律.发现不同温度下,多模光纤包层的吸收特性变化仅对SMS光纤结构透射光谱的传输损耗有影响,并且随着多模光纤包层吸收系数随温度的变化率增大,传输损耗的变化增大;而不同温度下,多模光纤包层的吸收特性变化对SMS光纤结构透射光谱的特征谷位置没有影响.从而得到多模光纤包层吸收特性主要影响基于传输损耗变化解调的各类SMS光纤传感器的温度特性,而对基于特征波长变化解调的各类SMS光纤传感器的温度特性没有影响.关键词:单模-多模-单模光纤结构;多模光纤包层;吸收特性;特征波长;传输损耗中图分类号:TN253 文献标志码:A 【additional_page=542】文章编号:1000-1565(2018)05-0466-06Effect of absorption characteristic of multimode fiber cladding on the temperature properties of a SMS fiber structureZHANG Rongxiang¹, ZHANG Jianfei¹, ZHAO Xinmin², LI Honglian³, LIU Tao⁴, WANG Yu¹(1. College of Physics Science and Technology, Hebei University, Baoding 071002, China; 2. Yixian Vocational Education, Yixian 074200, China; 3. College of Quality and Technical Supervision, Hebei University, Baoding 071002, China; 4. Department of Electronic and Communication Engineering, North China Electric Power University, Baoding 071003, China)Abstract: The theoretical model for analyzing the influence of the temperature-dependent absorption coefficient of multimode fiber cladding on the transmission spectrum of a single mode-multimode-single mode(SMS)fiber structure is founded based on multimode interference principle. The effect rule of absorption characteristics of multimode fiber cladding on the temperature properties of a SMS fiber structure is analyzed further by using the theoretical model. It is found that the absorption characteristic change of multimode fiber cladding only affects on the transmission loss of transmission spectra of a SMS fiber structure at different temperatures. And the change of transmission loss is more obvious when the rate of absorption- 收稿日期:2018-01-01 基金项目:国家自然科学基金资助项目(61302105);河北省科技计划项目(16455202D);河北省高等学校科学技术研究项目(QN2016093;ZD2014058);河北大学校内人才培养科研项目 第一作者:张荣香(1981—),女,河北保定人,河北大学副教授,主要从事光纤传感方向研究.E-mail:zrx@hbu.edu.cn 通信作者:张建飞(1979—),男,河北邢台人,河北大学讲师,主要从事光与物质相互作用方向研究.E-mail: zjf09@hbu.edu.cn第5期张荣香等:多模光纤包层吸收特性对SMS光纤结构温度特性的影响coefficient changing with temperature increases. Nevertheless, the location of feature dip of transmission spectra of a SMS fiber structure is not influenced by the absorption characteristic change of multimode fiber cladding at different temperatures. Thus, the absorption characteristics of multimode fiber cladding mainly effect on the temperature characteristics of SMS fiber sensors based on the change of transmission loss, but have no influence on the temperature characteristics of SMS fiber sensors based on the change of feature wavelength.

Synthesis and manufacture of piperazine and its N-substituted derivatives

BAI Guoyi, DONG Jie

2018, 38(5):  472-479.  DOI: 10.3969/j.issn.1000-1565.2018.05.005

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The main synthetic route and domestic manufacture of piperazine and its major N-substituted derivatives were reviewed in this paper. Piperazine can be synthesized by using N-β-hydroxyethyl ethylenediamine, diethylenetriamine, ethylenediamine, ethanolamine and other raw materials. Among them, the route using N-hydroxyethyl ethylenediamine as the starting material is believed as the most efficient route for the synthesis of piperazine. N-substituted derivatives of piperazine can be synthesized via either piperazine and N-alkyl agents or related primary amines, ethylene oxide and ammonia. Synthesis and manufacture of piperazine and its N-substituted derivatives have broad prospects of development due to their wide application areas and huge demand.

Adsorption and photocatalytic performance of TiO₂/AC composites

LI Mengyue, FANG Guoli, ZHANG Gang, WEI Jie, ZHENG Gong

2018, 38(5):  480-489.  DOI: 10.3969/j.issn.1000-1565.2018.05.006

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TiO₂/AC composites have been prepared by the impregnated-hydrothermal method, and coal-based activated carbon was used as raw material. The TiO₂ content in TiO₂/AC composites is an important affective factor for the adsorption and photocatalytic activities of TiO₂/AC composites. The monolayer adsorption capacities of the TiO₂/AC composites containing 0, 10.2%, 11.4%, 12.6% and 13.2% are 13.8, 19.5, 18.3, 16.9 and 16.8 mg/g, respectively. It is obvious that the TiO₂/AC composites containing 10.2% TiO₂ exhibited much highest adsorption performance. The photocatalytic activities of the TiO₂/AC composites have been evaluated by using Rh B as a model organic compound. With UV irradiation, the photodegradation efficiency of Rh B under TiO₂/AC composites containing 11.4% TiO₂ reached nearly 98.5% in 2 h, while this under P25 photocatalyst only reached 72.1%. It should be attributed to the strong interfacial interactions between activated carbon and TiO₂, which promoted the separation of photogenerated- DOI:10.3969/j.issn.1000-1565.2018.05.006TiO₂/AC复合材料的吸附性与光催化性能李梦悦¹,房国丽¹,张刚²,魏杰¹,郑功³(1. 北方民族大学 材料科学与工程学院,宁夏 银川 750021;2. 宁夏大学 学术期刊中心,宁夏 银川 750021;3.南京理工大学 金属纳米联合实验室,江苏 南京 210094)摘 要:以煤基活性炭为原材料,采用浸渍-水热法合成TiO₂/AC复合材料,进一步分析TiO₂负载量对TiO₂/AC复合材料吸附性能和光催化活性的影响.结果表明:TiO₂负载量为10.2%时,TiO₂/AC复合材料对Rh B的单层饱和吸附量为19.5 mg/g,高于煤基活性炭饱和吸附量13.8 mg/g.紫外光辐照下,不同负载量的TiO₂/AC复合材料均表现出优异的光催化活性.TiO₂负载量为11.4%时,紫外光辐照2 h后,TiO₂/AC复合材料对Rh B降解率为98.5%,远高于同等条件下P25光催化剂对Rh B的降解率(72.1%).这是由于活性炭和TiO₂之间的界面可以有效分离光生电子-空穴对,同时石墨化C的存在可以提高光生电子的迁移率,因此TiO₂/AC复合材料表现出明显优于P25的光催化活性.关键词:负载TiO₂活性炭复合材料(TiO₂/AC);浸渍-水热法;吸附性;光催化活性中图分类号:TB321 文献标志码:A 文章编号:1000-1565(2018)05-0480-10Adsorption and photocatalytic performance of TiO₂/AC compositesLI Mengyue¹, FANG Guoli¹, ZHANG Gang², WEI Jie¹, ZHENG Gong³(1. School of Materials Science and Engineering, Beifang Minzu University, Yinchuan 750021,China;2. Academic Journal Center, Ningxia University, Yinchuan 750021,China; 3. Joint Laboratory of NanostructuredMaterials and Technology,Nanjing University of Science and Technology, Nanjing 210094,China )Abstract: TiO₂/AC composites have been prepared by the impregnated-hydrothermal method, and coal-based activated carbon was used as raw material. The TiO₂ content in TiO₂/AC composites is an important affective factor for the adsorption and photocatalytic activities of TiO₂/AC composites. The monolayer adsorption capacities of the TiO₂/AC composites containing 0, 10.2%, 11.4%, 12.6% and 13.2% are 13.8, 19.5, 18.3, 16.9 and 16.8 mg/g, respectively. It is obvious that the TiO₂/AC composites containing 10.2% TiO₂ exhibited much highest adsorption performance. The photocatalytic activities of the TiO₂/AC composites have been evaluated by using Rh B as a model organic compound. With UV irradiation, the photodegradation efficiency of Rh B under TiO₂/AC composites containing 11.4% TiO₂ reached nearly 98.5% in 2 h, while this under P25 photocatalyst only reached 72.1%. It should be attributed to the strong interfacial interactions between activated carbon and TiO₂, which promoted the separation of photogenerated- 收稿日期:2017-11-02 基金项目:宁夏自然科学基金资助项目(NZ17108);国家自然科学基金资助项目(51262001) 第一作者:李梦悦(1993-),女,甘肃武威人,北方民族大学在读硕士研究生,主要从事半导体功能材料合成研究.E-mail: leeklee511@163.com 通信作者:房国丽(1982-),女,山西河津人,北方民族大学副教授,博士,主要从事半导体功能材料、超微粉体材料控制合成研究. E-mail: fangguoli999@163.com第5期李梦悦等:TiO₂/AC复合材料的吸附性与光催化性能electron-hole pairs. Moreover, the presence of graphitized C could improve the photogenerated electron mobility rate.

Synthesis of a novel two dimensional BINOL metal-organic framework

DONG Huanxin, LI Yiming, ZHAN Lei, LÜ Erpan, LI Lijun

2018, 38(5):  490-495.  DOI: 10.3969/j.issn.1000-1565.2018.05.007

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1,1'-binaphthyl-2,2'-dihydroxy-6,6'-dicarboxylic acid was synthesized from 2-hydroxy-6-naphthoic acid by esterification, coupling and hydrolysis. A new type of two-dimensional BINOL-Sr metal-organic framework(MOF(1))was synthesized by diffusion method. The complex crystalized in triclinic, P-1, with a = 0.787 5(4)nm, b = 1.242 1(8)nm, c = 1.336 4(9)nm,α= 114.64(2)°, β= 98.644(15)°,γ= 96.093(19)°, V = 1.153 8(13)nm³, Z = 2, R₁ = 0.049 6, wR₂ = 0.120 6.

Fabrication and characterization of poly(N-isopropylacrylamide) /SiO₂ nanocomposite hydrogels

ZHOU Lili, LIU Yanxia, LIU Le, FENG Xianqi

2018, 38(5):  496-502.  DOI: 10.3969/j.issn.1000-1565.2018.05.008

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In this work, poly(N-isopropylacrylamide)/SiO₂ nanocomposite hydrogel with high mechanical strength and thermo-responsiveness were successfully prepared through a facile and in-expensive methods of in-situ polymerization. The structure, mechanical properties, and thermo-dynamic performance of the resultant samples were analyzed and characterized using SEM, TEM, FT-IR, ASG-J electronic universal testing machine, and DSC.The results indicated that the nanocomposite hydrogel showed a well-defined and interconnected 3D porous network structure with the pore size of 1 μm, high compression mechanical strength(8 MPa)and excellent toughness, and a clear phase transition temperature of 35 ℃.

Preparation of three-dimensional graphene/L-CysS composite modified electrode and its application in determination of clozapine

LIANG Ninggang, LI Juanjuan, CAI Zhuo, JIANG Cuiwen, YE Danni

2018, 38(5):  503-508.  DOI: 10.3969/j.issn.1000-1565.2018.05.009

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The 3DGR/L-CysS/GCE was prepared by drop-coating method, and characterized by electrochemical impedance spectroscopy(EIS)and scanning electron microscopy(SEM). The electrochemical behaviors of clozapine at 3DGR/L-CysS/GCE were studied by cyclic voltammetry(CV), controlled potential coulometry(CPC), differential pulse voltammetry(DPV)and chronocoulometry(CC). The experimental results showed that the reaction of clozapine at 3DGR/L-CysS/GCE was an electrochemical reaction with one electron and one proton transfer. The peak current and clozapine content showed a good linear relationship in the concentration range of 2.0×10^-5~5.0×10^-4 mol/L, and the detection limit was 1.21×10^-6 mol/L(S/N=3). 3DGR/L-CysS/GCE was used for the determination of clozapine in tablets, and the recovery was 97.5%~100.8%.

Influencing factors and mechanism of genetic diversity of arbuscular mycorrhizal fungi

HE Xueli, QIANG Wei, ZHAO Lili

2018, 38(5):  509-516.  DOI: 10.3969/j.issn.1000-1565.2018.05.010

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The factors affecting the genetic diversity of AM fungi, the maintenance mechanism and the significance were summarized. This paper looks forward to the future development and application prospects of this field, in order to provide a basis for a comprehensive understanding and utilization of AM fungal genetic diversity.

Optimization of cultivation for Flammulina velutipes based on resource development of Ziziphus jujuba branches crumbs

SHEN Xiaoyan,FU Jingxuan,PING Linlin,WANG Qian

2018, 38(5):  517-520.  DOI: 10.3969/j.issn.1000-1565.2018.05.011

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This study used Zizyphus jujube crushing material as test materials to select Flammulina velutipes strains,which is appropriate to decompose Z. jujube branches, and select a culture medium formula, which uses Z. jujube branches chip as main substrate. The results showed that “jinza 19” was the F. velutipes strain which was appropriate to decompose Z. jujube branches.The optial cultivation medium was P2.The mass fraction of each component was Z. jujuba branches crumbs 70%, cottonseed hull 10%, bran 18%, lime 2%.On this culture medium,the mycelium growth of F. velutipes is 4.68 mm/d, the biology efficiency is 103.91%, the output-to-input ratio is 1∶8.58.A resource development and utilization model of macrofungi degradation forestry using abandoned-Z. jujuba branches crumbs is thus developed.

Establishment of regeneration system of Caragana intermedia

WU Chunyan, PAN Yu, NIU Xiaocui, WANG Ruigang

2018, 38(5):  521-525.  DOI: 10.3969/j.issn.1000-1565.2018.05.012

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The study established the tissue culture system with the stem segment of Caragana intermedia as the explant, and the results were as follows: with the callus induction medium of MS + GA₃ 0.15 mg/L + 6-BA 0.2 mg/L + NAA 0.4 mg/L + AC 0.1 g/L + sucrose 25 g/L + agar 6 g/L, callus induction rate was 33.33%;With the induction medium of MS + 6-BA 1.0 mg/L + NAA 0.2 mg/L + sucrose 25 g/L + agar 6 g/L, sheath bud induction rate was 13.33%; With rooting medium of MS + IAA 0.5 mg/L + GA₃ 0.15 mg/L + sucrose 20 g/L + agar 6 g/L, rooting rate of 60%; After rooting, the rooting seedlings were moved to a substrate with vermiculite and nutrient soil with volume ratio of 2∶1 and the survival rate was 100%.

Detection and phylogeny of Wolbachia in two Loxoblemmus species in Baoding urban area

GUAN Bei, CHAI Jinyan, ZHOU Zhijun

2018, 38(5):  526-532.  DOI: 10.3969/j.issn.1000-1565.2018.05.013

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Wolbachia screening from various tissues of two Loxoblemmus species was performed, including heads, alimentary canal, foot muscles, and gonads. DNA was extracted from these tissues, amplified using Wolbachia surface protein gene(wsp)specific primers(81F/691R)followed by sequencing and phylogenetic analysis. All two Loxoblemmus species harbored Wolbachia. The detection ratio of heads and foot muscles apparently higher than alimentary canal and gonads. L. doenitzi and L. equestris presented infection with Wolbachia B and A group, respectively. There were two Wolbachia strains from markedly different subgroup infecting L. doenitzi and L. equestris. These results provide the basis for future study on the effects of Wolbachia on the biology of two Loxoblemmus species.

Functional connectivity analysis of resting state functional magnetic resonance imaging in female patients with Alzheimers disease

ZHENG Wei, WANG Xuan, LIU Jing, ZHAO Jie

2018, 38(5):  533-542.  DOI: 10.3969/j.issn.1000-1565.2018.05.014

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The studies on the pathogenesis and pathological process of Alzheimers disease by resting state functional magnetic resonance show that changes in brain function of AD patients are earlier than changes in brain structure, and the prevalence rate of females is twice than that of males. According to the rs-fMRI for females of different ages, time layer correction is performed on the image based on SPM to eliminate the elimination of time difference; Head motion correction, normalization and smooth skating in space reduces the difference between individuals. The blind source separation and stability analysis were carried- DOI:10.3969/j.issn.1000-1565.2018.05.014女性阿尔茨海默病患者静息态功能磁共振图像FC分析郑伟^1,2,3,王轩^1,2,3,刘敬^1,2,3,赵杰^1,2,3(1. 河北大学 电子信息工程学院,河北 保定 071002;2.河北省数字医疗工程重点实验室,河北 保定 071002;3.河北省机器视觉工程技术研究中心,河北 保定 071002)摘 要:利用静息态功能磁共振对阿尔茨海默病(Alzheimer disease,AD)患者发病机制和病理过程的研究结果表明AD患者脑功能的改变早于脑结构的改变,女性患病率是男性的2倍.针对不同年龄段女性患者静息态功能磁共振成像(resting-state functional magnetic resonance imaging,rs-fMRI),基于SPM(statistical parametric mapping,SPM)对图像进行时间上的时间层校正以消除时间差;空间上的头动校正、归一化、平滑等操作降低个体间差异. 采用独立分量分析(independent component analysis,ICA)及聚类等方法进行盲源分离和稳定性分析,通过统计检验及组间对比研究女性患者各脑区之间的连接关系及其强弱,进而判断功能连接(functional connectivity,FC)差异,为女性AD患者临床前期诊断提供参考.关键词:阿尔茨海默病;静息态;功能磁共振成像;独立分量分析;功能连接中图分类号:TN911 文献标志码:A 文章编号:1000-1565(2018)05-0533-10Functional connectivity analysis of resting state functional magnetic resonance imaging in female patients with Alzheimers diseaseZHENG Wei^1,2,3, WANG Xuan^1,2,3, LIU Jing^1,2,3, ZHAO Jie^1,2,3(1. College of Electronic and Information Engineering, Hebei University, Baoding 071002, China; 2.Key Laboratory of Digital Medical Engineering of Hebei Province, Baoding 071002, China; 3. Machine Vision Engineering Research Center of Hebei Province, Baoding 071002, China)Abstract:The studies on the pathogenesis and pathological process of Alzheimers disease by resting state functional magnetic resonance show that changes in brain function of AD patients are earlier than changes in brain structure, and the prevalence rate of females is twice than that of males. According to the rs-fMRI for females of different ages, time layer correction is performed on the image based on SPM to eliminate the elimination of time difference; Head motion correction, normalization and smooth skating in space reduces the difference between individuals. The blind source separation and stability analysis were carried- 收稿日期:2018-04-10 基金项目:国家自然科学基金资助项目(61572063);河北省自然科学基金资助项目(F2016201187);河北省高等学校科学技术研究项目(QN2016085);河北大学研究生创新项目(X2017) 第一作者:郑伟(1972—),女,黑龙江兰西人,河北大学教授,博士,主要从事图像处理与分析、图像安全通信、图像加密和隐藏研究.E-mail: 147685650@qq.com 通信作者:赵杰(1969—),男,河北沧州人,河北大学教授,博士,主要从事智能图像处理、图像处理与分析、信号检测与模式识别研究. E-mail: zhaojie_bbu@126.com第5期郑伟等:女性阿尔茨海默病患者静息态功能磁共振图像FC分析out by the methods of independent component analysis(ICA)and clustering. The connection and strength of the brain regions of female patients were studied by statistical test and comparison, and then the difference of functional connectivity(FC)was judged, which provide reference for females AD patients in preclinical diagnosis.

Color image segmentation algorithm based on improved convex hull and color contrast

CHEN Liping, ZHOU Hang,ZHANG Ningyu, YANG Wenzhu, CUI Zhenchao, LIU Qing

2018, 38(5):  543-548.  DOI: 10.3969/j.issn.1000-1565.2018.05.015

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The detection method based on feature contrast is easy to misjudge the background area with high contrast as the target when processing complex background images. This may lead to inaccurate segmentation results. In order to solve this problem, this paper presents a new method for color image segmentation based on improved convex hull and color contrast. Firstly, the method takes superpixel as the basic processing unit, and measures the saliency map based on color contrast with uniqueness and spatial distribution. Secondly, it calculates convex hull using color enhancement Harris corner points. The convex hull is corrected through FH algorithm. The center saliency map can be achieved through the corrected convex hull. The final saliency map is obtained by the fusion of the contrast map and the center saliency map. Finally, the object was segmented out using OTSU method. Simulation experiments on the MSRA 1 000 and ECSSD databases were conducted. The results indicate that the proposed algorithm performs better in visualization, precision.

Research on archives text classification based on Naive Bayes

LIU Peixin,YU Hongzhi,XU Tao

2018, 38(5):  549-554.  DOI: 10.3969/j.issn.1000-1565.2018.05.016

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This paper analyzes the data resources of archives in Gansu Province by combining with Naive Bayesian classification algorithm to realize the application of archives resource classification. According to the characteristics of the file data, the attribute that matches the text of the file text was selected, and the TFIDF algorithm in the file text feature attribute selection was used. The experimental results show that the classification model is suitable for the classification of archival text resources, and the function of automatic classification of archives is realized. Compared with the traditional Naive Bayesian classification method, the classification model proposed in this paper is 1%—2% for the classification efficiency of archives, it is thus a more effective classification model for the archives.

Design of feeder terminal communication based on IEC61850 protocol

SUN Tongtong, YAN Zhenyue, ZHANG Jingping, HUO Limin

2018, 38(5):  555-560.  DOI: 10.3969/j.issn.1000-1565.2018.05.017

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IEC61850 is introduced into the feeder system, which can effectively solve the problem of information sharing and interoperability between different distribution terminals.In order to realize the real-time interaction of information,the information function model of feeder terminal is constructed by using the logical node defined by IEC61850 protocol and mapping the information exchange services used in the feeder terminal to the corresponding communication mode.The client / server model is mapped to the manufacturing message specification MMS and GOOSE packets are mapped directly to the IOS Ethernet data link layer,so that in each distribution feeder switches enable multipoint communication and interoperability between different FTU.Finally, experimental platform is used to verify the mapping method to meet the requirements.