• <tr id="yyy80"></tr>
  • <sup id="yyy80"></sup>
  • <tfoot id="yyy80"><noscript id="yyy80"></noscript></tfoot>
  • 99热精品在线国产_美女午夜性视频免费_国产精品国产高清国产av_av欧美777_自拍偷自拍亚洲精品老妇_亚洲熟女精品中文字幕_www日本黄色视频网_国产精品野战在线观看 ?

    Posture Adjustment of MicroPhone Based on Image Recognition in Automatic Welding System

    2015-11-24 02:39:20WangJin王金娥GaoPing高萍HuangHaibo黃海波LiXiangpeng李相鵬ZhengLiang鄭亮XuWenkui徐文奎ChenLiguo陳立國
    關(guān)鍵詞:黃海波立國

    Wang Jin'e(王金娥)'Gao Ping(高萍)'2'Huang Haibo(黃海波)'2*' Li Xiangpeng(李相鵬)'2'Zheng Liang(鄭亮)'2' Xu Wenkui(徐文奎)'2'Chen Liguo(陳立國)'2

    1.College of Mechanical and Electrical Engineering'Soochow University'Suzhou 215000'P.R.China;

    2.Robotics and Microsystems Center'College of Mechanical and Electrical Engineering&Collaborative Innovation Center of Suzhou Nano Science and Technology'Soochow University'Suzhou 215000'P.R.China

    Posture Adjustment of MicroPhone Based on Image Recognition in Automatic Welding System

    Wang Jin'e(王金娥)1'Gao Ping(高萍)1'2'Huang Haibo(黃海波)1'2*' Li Xiangpeng(李相鵬)1'2'Zheng Liang(鄭亮)1'2' Xu Wenkui(徐文奎)1'2'Chen Liguo(陳立國)1'2

    1.College of Mechanical and Electrical Engineering'Soochow University'Suzhou 215000'P.R.China;

    2.Robotics and Microsystems Center'College of Mechanical and Electrical Engineering&Collaborative Innovation Center of Suzhou Nano Science and Technology'Soochow University'Suzhou 215000'P.R.China

    As the requirements of production process is getting higher and higher with the reduction of volume'microphone production automation become an urgent need to improve the production efficiency.The most important part is studied and a precise algorithm of calculating the deviation angle of four types microphones is proposed' based on the feature extraction and visual detection.Pretreatment is performed to achieve the real-time microphone image.Canny edge detection and typical feature extraction are used to distinguish the four types of microphones' categorizing them as type M1 and type M2.And Hough transformation is used to extract the image features of microphone.Therefore'the deviation angle between the posture of microphone and the ideal posture in 2D plane can be achieved.Depending on the angle'the system drives the motor to adjust posture of the microphone.The final purpose is to realize the high efficiency welding of four different types of microphones.

    visual inspection;Canny edge detection;Hough transform;feature extraction;microphone

    0 Introduction

    Microphone as a kind of acoustic sensor converts sound energy to electrical energy[1]is widely used in such digital products as mobile phones' bluetooth headset'PC'MP3'MP4 and digital camera'etc.Since invention of the microphone at the end of the 19th century'microphone technology has developed drastically from traditional crystal and electromagnetic type into microelectromechanical systems(MEMS)type.With the reduction of volume'requirements of production process become higher and higher.Domestic microphone production still focuses on manual welding'which decides that the productivity will remain a low rate.Therefore'the microphone production automation becomes an urgent need to improve the production efficiency.The combination of motor'air pressure adsorption and visual detection[2-3]technology can realize the automation of microphone welding'and visual inspection is the core technology in the microphone welding automation.To satisfy the demand of production development'we develop a new set of microphone automatic welding system.And the most important part:posture adjustment of the microphone based on visual identification is presented here.

    Visual inspection'through image preprocess[4]can get rid of noise'and Hough transform[5]is used to achieve the characteristics of the microphone'which is greatly useful for a precise calculation of the deviation angle.Depending on the angle'the system drives the motor to adjustthe microphone posture'which lays a solid foundation for great improvement of the microphone automatic welding[6]success rate.An algorithm precisely calculating the angle of four kinds microphone is proposed.

    1 Automatic MicroPhone Welding System

    1.1 Automatic microPhone welding Process

    Automatic welding equipment for microphone is a multi-station rotary equipment'as shown in Eig.1'and the seven stations correspond to seven steps of the welding process. View of seven parts is shown in Eig.2.

    Eig.1 Multi-station rotary disc welding equipment

    The microphone automatic feeding is the first station of the rotary equipment'which is performed by the vibration plate and conveying mechanism'and the microphone is turned into the wheel of stoma.When the wheel is rotating' a microphone is fed into the rotary table'the previous microphone enters the visual inspection area'and the institution tests the microphone deflection angle and drives motor to adjust the microphone to the ideal position.Next step'the microphone enters the performing area of wire feeding institution'the corresponding black line and red line are fed'and the next station'the wire welding is completed.The microphone enters the next visual inspection station after welding to test the welding results.Einally'the system discharges microphone according to the test results'the good welding and bad welding microphones are discharged'respectively.The flow chart is shown in Eig.3.

    Eig.2 Parts of automatic welding equipment

    1.2 Visual detection system

    Machine vision is a system'which is combined with modern advanced control technology' computer technology and sensor technology'and is characterized by the opto-mechatronics integration'vision framework as shown in Eig.4.

    Machine vision inspection is a complete system'including light sources'lenses'cameras' grabbers and image processing card.

    Eig.3 Elow chart of automatic welding process

    Eig.4 Eramework of visual system

    The light source is one of the most important factors that affect the machine vision system input.It directly affects the quality of input data and application effect.The lens is an important component of machine vision system'and plays a key role in imaging quality.It affects the image quality of various major indicators'including resolution'contrast'depth of field and all kinds of aberration.Industrial camera is the core part of the machine vision system.Its essential function is to transform optical signals into electrical signals'and has higher transmission power'antijamming and stable imaging capability compared with the ordinary camera.Image acquisition card is just a part of the complete machine vision system.However'it plays a very important role.It directly determines the camera interface:black and white'color'analog'digital'and so on.Visual processor integrates acquisition card with the processor'and speeds up the visual processing tasks.

    In the microphone automatic welding equipment'the machine vision inspection system adopts DH-HV3151UC-M camera'TL-20 video microscope'carbon capture and storage(CCS)ring light source'and DH-VT111 image acquisition card of DH-VT series.

    2 MicroPhone Posture Adjustment Based on Visual InsPection

    2.1 Introduction of microPhone Posture adjustment in automatic welding equiPment

    In the multi-station rotary microphone automatic welding equipment'adjusting the microphone posture and orientation through visual inspection is the key to the success of the welding process'which has a direct impact on the results of post-weld.Real-time microphone image acquired by the camera provides the signal source of the microphone posture adjustment.The left side of microphone is negative'and the right side is positive'corresponding to the black and red lines in the later procedure.

    Posture of microphone supplied by the vibration plate and feeding actuator is random'and it is unable to guarantee the accuracy of the welding products.The visual inspection is used to detect the posture and orientation of the microphone' and the system drives the motor according to the feedback information about posture and orientation to realize posture adjustment of the microphone.A method is proposed based on visual detection algorithm to obtain accurate information of posture and orientation of the microphone' which is applicable to a variety of microphone products'and adjusts posture and orientation of the microphone based on the information.The algorithm is suitable for the following four types of microphones as shown in Eig.5.

    Eig.5 Eour types of microphones

    The vision algorithms is suitable for four kinds of microphones with different structural features'achieving the type identification according to the extracted features.Type recognition is realized according to extracted features'and the key steps to realize the microphone posture adjustment are as follows:

    (1)Real-time image can be acquired from visual inspection system.Noise is removed through image pre-processing.Canny edge algorithm is used to extract region of interest(ROI).

    (2)Color features of different microphones are extracted based on the image feature.

    (3)Hough line detection and Hough circle detection methods are used to extract the characteristics of different microphones'then their posture state can be got.

    (4)According to microphone position state' the offset angleθbetween its posture and ideal posture can be acquired.

    (5)According toθ'motor is driven to realize the posture and attitude adjustment of microphones.Eecause of the proportional relationship between sizes of welding plate and microphone' the accurate welding can be achieved whenθ<5°.Ifθ>5°'the system adjusts microphone posture and its step turn to step(1).Ifθ<5°'the posture and orientation adjustment of microphones is finished'and the system enters into next process.

    Elow chart of the microphone posture adjustment is shown in Eig.6.

    Eig.6 Elow chart of microphone posture adjustment

    2.2 Posture Adjustment Algorithm Based on Visual InsPection

    2.2.1 Image pretreatment to extract ROI

    Preprocessing is the key step of the image feature extraction in the machine vision and image process technology'which filters out lots of interference and noise caused by environment and equipment.In the posture adjustment of microphone automatic welding equipment'the image preprocess is greatly useful to the ROI extraction'eliminating the environmental interferences for visual inspection.Therefore'the real-time collected image is dealt with gray process'Gaussian filter[7'8]'Canny edge detection[9'10]and Hough circle detection[11'12].We can achieve the effective area of microphone ROI'the intermediate results are shown in Eig.7'where Eig.7(a)is the source image'Eig.7(b)the gray image comeing from source image'Eig.7(c)the result image processed by Gaussian filter'Eig.7(d)the edge detection result processed by Canny operator'and Eig.7(e)the Hough circle detection result'and the area in the blue circle is ROI.

    2.2.2 Type recognition and posture detection

    The visual inspection system of microphone welding automation equipment identifies microphone as many as four varieties.According to the input microphone category'the visual inspection system automatically extracts the features'and calculates the angle between the microphone posture and ideal posture according to the corre-sponding algorithm.Therefore'the system drives the motor to adjust posture of the microphone.

    Eig.7 Intermediate results of image process

    (1)The microphone type recognition

    After the microphone is fed by vibration plate'posture of the microphone shows random state under visual inspection system'and they have different internal structures.In Eigs.5(a—c)'ROI of the microphone is red'it has been verified by lots of experiments that the angle between posture of the microphone and the ideal posture can be accurately achieved by using the algorithm based on Hough linear detection.ROI of microphone in Eig.5(d)is green'the angle between the microphone posture and ideal posture got by Hough linear detection is wrong'and the angle can be accurately achieved by using the algorithm based on Hough circle transform.Microphones can be divided into M1 and M2 types'according to the color characteristics of ROI.If the color of ROI closes to red'it belongs to M1 type' otherwise it belongs to M2 type.Posture adjustment algorithm of M1 type microphones is based on Hough line detection'and it of M2 type microphones is based on Hough circle detection.

    Since image of the microphone is always in the vision center of the visual inspection system' avg R'avgE and avgG are average characteristic values of RGE three color components'which can be used to distinguish different types of microphones.The results of experimental data are shown in Eig.8.Avg R is significantly larger than avg G for M1 type microphones'and avg G is significantly larger than avgR for M2 type microphones.Therefore'avgR and avgG are two important characteristic values for posture adjustment algorithm.

    Eig.8 Value distribution of avgR'avgG and avgE for M1 and M2

    (2)Microphone posture adjustment

    ROI color characteristic values are effective indicators to distinguish M1 and M2 type microphones.The posture adjustment algorithm for M1 is based on Hough line detection'and it for M2 is based on Hough circle detection.The steps realizing posture adjustment according to the characters of color are as follows:

    Step 1 Source image turns into gray image through gray transform'then noise is removed by Gaussian filter'and object edge is detected by Canny operator.

    Step 2 ROI area is extracted by Hough circle transform according to the characteristics of the microphone shape'and the color characteristic values avgR and avgG of ROI can be obtained.

    Step 3 Avg R is compared with avgG'if avgR>avgG'microphone belongs to M1 type' we go to step(4);Whereas microphone belongs to M2 type'we go to step(5).

    Step 4 The improved Hough linear detection algorithm is adopted to detect the edge of the negative electrode chip in M1 type microphone' then'calculate theθbetween the edge and the vertical direction'i.e.the angle between posture of the microphone and ideal posture.

    Step 5 Hough circle detection algorithm is adopted to detect two round holes in M2 type microphone'thenθbetween the connecting line and horizontal direction can be acquired'andθis the offset angle of the detected microphone.

    Step 6 θis the signal driving the motor to adjust posture of microphone.Ifθ>5°'motor is driven to adjust posture'and then posture of microphone is tested again untilθ<5°.Ifθ<5°' microphone should be brought into next process.

    Elow chart of posture adjustment according to the color characters is shown in Eig.9.

    Eig.9 Elow chart of posture adjustment according to color characters

    Microphone automatic welding device automatically welds four different types of microphones'which thanks to visual inspection system that can accurately detect four types of microphones′posture state based on color features. Offset angleθcan be acquired through the flow as shown in Eig.9'and the test results of four types of microphones are shown in Eig.10.The detection results of M1 depends on Hough line transform'and the main area of M1 is red.The detection results of M2 depends on Hough circle transform'and the main area of M2 is green.Detection resultθranges from-180°to 180°.Ifθ<0°'the microphone should be turned in clockwise direction'otherwise'the microphone should be turned in anticlockwise direction.

    Endpoints of detection line are important in the proposed algorithm'and they are shown in Eig.11.

    Eig.10 Microphone posture detection based on color feature

    Eig.11 Endpoint detection results

    The computation formula of the angle between posture and ideal posture of the microphone is as follows

    where pr.x'pr.y'pl.x'pl.y are points′coordinates of test results'corresponding to two endpoints of Hough line detection for M1 type microphone or two circle centers of Hough circle detection result for M2 type microphone.

    2.2.3 Experimental results and discussion

    An algorithm for recognizing the microphone posture is proposed in automatic welding equipment.The features can be extracted through image preprocess'including Gaussian filter and Canny edge detection.Offset angleθof different types of microphones can be accurately calculated'then the motor is driven to adjust posture of microphones.Eor two welding areas of the chip are large in the microphone'the microphone can be accurately welded.Whenθ<5°'the accuracy of the visual inspection system for detecting posture of the microphone is shown in Table 1. Welding products are shown in Eig.12.

    Table 1 ExPerimental results

    Eig.12 Welding products

    The proposed algorithm is applied to the automatic welding equipment.The production efficiency is increased to 15 PCS/min'the size of the microphone is 4 mm in diameter.120 microphones are tested in the equipment'and the inspection accuracy reaches 96.7%.Hence'the proposed algorithm is effective.Eut the motor control precision error exists in the whole equipment system.Visual inspection accuracy cannot represent the accuracy of whole welding system' and the welding accuracy can be improved from visual inspection'motor control and other aspects.

    3 Conclusions

    Welding system adjusts posture of microphones based on the results of visual inspection' and visual inspection is the core technology of microphone welding automation.In the paper'posture detection algorithm of microphones is proposed based on image recognition'and the experimental result shows that it is effective.The algorithm can detect and identify as many as four types of microphones'and it is helpful to improve the accuracy and speed of microphone welding' and greatly save the cost of labor and time.

    Acknowledgements

    This work was supported by the Project of Youth Eund of the National Natural Science Eoundation(No. 61203208)'the National Natural Science Eoundation of China(No.61327802)'the Specialized Research Eund for the Doctoral Program of Higher Education(No.2013320111 0009).

    [1] Kuntzman M L'Lee J G'Hewa-Kasakarage N N' et al.Micromachined piezoelectric microphones with in-plane directivity[J].Applied Physics Letters' 2013'102(5):054109-1-054109-4.

    [2] Xu Yuxing.Eased on visual inspection of the finishedproducts tobacco smoke detection system[J].Journal of Electronics'2014(4):106-106.(in Chinese)

    [3] Ravikumar S'Ramachandran K I'Sugumaran V'et al.Machine learning approach for automated visual inspection of machine components[J].Expert Systems with Application'2011'38(4):3260-3266.

    [4] Anitha S'Radha Dr V.Comparison of image preprocessing techniques for textile texture images[J].International Journal of Engineering Science and Technology'2010'2(12):7619-7625.

    [5] Xie Zhonghong'Ji Chanhying'Guo Xiaoqing'et al. An object detection method for qasi-circular fruits based on improved Hough transform[J].Transactions of the CSAE'2010'26(7):157-162.(in Chinese)

    [6] Li Xiaoyan'Wu Chuansong'Wu Li'et al.The development of Chinese welding manufacturing discipline study[J].Journal of Mechanical Engineering' 2012'48(6):19-31.(in Chinese)

    [7] Li Huifen'Eorward Jiang'Zhu Li'et al.Gaussian filter research and improvement of the robust performance[J].Journal of Instruments and Meters' 2004'25(5):633-633.(in Chinese)

    [8] Mario Sansone'Olga Zeni'Giovanni Esposito'et al. Automated segmentation of comet assay images using Gaussian filtering and fuzzy clustering[J].Medical and Eiological Engineering and Computing'2012'50(5):523-532.

    [9] Tao Luo'Zheng Xifeng'Ding Tiefu.Improved selfadaptive threshold Canny edge detection[J].Opto Electronic Engineering'2009'36(11):106-111.(in Chinese)

    [10]Nitasha Singla'Shammi Sharma'Usha Ran.Ellipse detection using canny edge detection algorithm[J]. International Journal of Computer Applications and Information Technology'2013'1(2):45-47.

    [11]Yuan L'Cao Z R.Improved randomized Hough transform algorithm for circle detection[J].Journal of Computer Applications'2010'30(1):174-176.

    [12]Jiang L.Efficient randomized Hough transform for circle detection using novel probability sampling and feature points[J].Optik J'2012'123(20):1834-1840.

    (Executive editor:Xu Chengting)

    TP391.41 Document code:A Article ID:1005-1120(2015)02-0232-08

    *CorresPonding author:Huang Haibo'Associate Professor'E-mail:hbhuang@suda.edu.cn.

    How to cite this article:Wang Jin′e'Gao Ping'Huang Haibo'et al.Posture adjustment of microphone based on image recognition in automatic welding system[J].Trans.Nanjing U.Aero.Astro.'2015'32(2):232-239.

    http://dx.doi.org/10.16356/j.1005-1120.2015.02.232

    (Received 10 January 2015;revised 20 January 2015;accepted 31 January 2015)

    猜你喜歡
    黃海波立國
    毛唯臻 黃海波油畫作品
    大眾文藝(2024年2期)2024-02-18 11:40:54
    今夜月彎彎
    抗美援朝,毛澤東立國之戰(zhàn)
    親密
    天上來了小客人
    Study on circle detection algorithm based on data dispersion①
    這樣利用“齊次化”答題
    Analysis on the crossing obstacle of wheel-track hybrid mobile robot①
    “男七號”的奮斗史
    文苑·感悟(2012年2期)2012-03-22 08:09:44
    黃海波智解“友情危機(jī)”
    亚洲av国产av综合av卡| 国产免费视频播放在线视频| a级毛色黄片| 一级爰片在线观看| 夜夜看夜夜爽夜夜摸| 日本午夜av视频| 噜噜噜噜噜久久久久久91| av不卡在线播放| av黄色大香蕉| 国产精品一区二区在线观看99| 亚洲成人中文字幕在线播放| 天美传媒精品一区二区| 一级黄片播放器| 国产 一区 欧美 日韩| h日本视频在线播放| 国产精品无大码| 中国国产av一级| 少妇人妻精品综合一区二区| 午夜视频国产福利| 国产黄色免费在线视频| 久久ye,这里只有精品| 亚洲欧美中文字幕日韩二区| 在线观看免费视频网站a站| 亚洲电影在线观看av| 精品久久久久久电影网| 97热精品久久久久久| 蜜桃久久精品国产亚洲av| 一个人看视频在线观看www免费| 日产精品乱码卡一卡2卡三| 啦啦啦在线观看免费高清www| 国产在视频线精品| 久久久a久久爽久久v久久| 国产高清不卡午夜福利| 日本vs欧美在线观看视频 | 王馨瑶露胸无遮挡在线观看| 超碰97精品在线观看| 日韩在线高清观看一区二区三区| 国产黄色免费在线视频| 亚洲国产精品一区三区| 久久99热6这里只有精品| 亚洲人成网站在线观看播放| 亚洲av国产av综合av卡| 一级毛片久久久久久久久女| 亚洲成人一二三区av| 日韩成人伦理影院| 国产精品成人在线| 91在线精品国自产拍蜜月| 免费看av在线观看网站| 久久av网站| 日日啪夜夜撸| 一级毛片久久久久久久久女| 免费看av在线观看网站| 免费大片黄手机在线观看| av免费观看日本| 人人妻人人添人人爽欧美一区卜 | 午夜福利网站1000一区二区三区| 一边亲一边摸免费视频| 国产 精品1| 免费人成在线观看视频色| 大话2 男鬼变身卡| 久久人人爽人人爽人人片va| 亚洲av电影在线观看一区二区三区| 久久久色成人| 赤兔流量卡办理| 亚洲精品乱码久久久久久按摩| av一本久久久久| 欧美xxxx性猛交bbbb| 少妇的逼水好多| 国产黄色免费在线视频| 日本爱情动作片www.在线观看| 香蕉精品网在线| 国产在线视频一区二区| 九九久久精品国产亚洲av麻豆| 久久午夜福利片| 国产在线一区二区三区精| 精品国产一区二区三区久久久樱花 | 有码 亚洲区| 国产片特级美女逼逼视频| 精品一区二区三卡| 亚洲av国产av综合av卡| 啦啦啦中文免费视频观看日本| 91精品国产九色| 久久鲁丝午夜福利片| 日韩伦理黄色片| 午夜福利视频精品| 又黄又爽又刺激的免费视频.| 欧美xxⅹ黑人| 激情五月婷婷亚洲| 亚洲精品中文字幕在线视频 | 你懂的网址亚洲精品在线观看| 亚洲一级一片aⅴ在线观看| 大香蕉97超碰在线| 午夜免费男女啪啪视频观看| 国产真实伦视频高清在线观看| 免费观看性生交大片5| 在线亚洲精品国产二区图片欧美 | 精品少妇黑人巨大在线播放| 亚洲国产av新网站| 毛片女人毛片| 人人妻人人看人人澡| 亚洲真实伦在线观看| 天美传媒精品一区二区| 亚洲精品一区蜜桃| av在线蜜桃| 夫妻午夜视频| 免费看日本二区| 国产久久久一区二区三区| 小蜜桃在线观看免费完整版高清| 欧美精品一区二区免费开放| 国产精品久久久久久av不卡| 精品一区二区三卡| 欧美精品一区二区免费开放| 国产免费一区二区三区四区乱码| 老女人水多毛片| 两个人的视频大全免费| av一本久久久久| 亚洲av综合色区一区| 免费大片黄手机在线观看| 精品一区二区免费观看| 下体分泌物呈黄色| 精品少妇黑人巨大在线播放| 七月丁香在线播放| 成年人午夜在线观看视频| 成人午夜精彩视频在线观看| 婷婷色综合大香蕉| 2021少妇久久久久久久久久久| h视频一区二区三区| 蜜臀久久99精品久久宅男| 观看美女的网站| 免费黄网站久久成人精品| 久久久久久久久久人人人人人人| 2018国产大陆天天弄谢| 免费在线观看成人毛片| 亚洲成色77777| 各种免费的搞黄视频| 亚洲欧美中文字幕日韩二区| 成人高潮视频无遮挡免费网站| 精品久久久久久电影网| 最近2019中文字幕mv第一页| 亚洲中文av在线| 亚洲一级一片aⅴ在线观看| 国产精品99久久99久久久不卡 | 午夜免费观看性视频| 亚洲真实伦在线观看| 一二三四中文在线观看免费高清| 国产成人a区在线观看| 久久久亚洲精品成人影院| 国产精品女同一区二区软件| 涩涩av久久男人的天堂| 亚洲精品日韩在线中文字幕| 高清不卡的av网站| 日韩电影二区| 日本午夜av视频| 18禁裸乳无遮挡免费网站照片| 男女无遮挡免费网站观看| 亚洲精品视频女| 91在线精品国自产拍蜜月| 国产亚洲av片在线观看秒播厂| 91久久精品电影网| 女人十人毛片免费观看3o分钟| 丝袜喷水一区| 自拍偷自拍亚洲精品老妇| 亚洲aⅴ乱码一区二区在线播放| av在线app专区| 在线观看av片永久免费下载| 国产av国产精品国产| 国产高清三级在线| 亚洲精品日韩av片在线观看| 日韩免费高清中文字幕av| 午夜免费男女啪啪视频观看| 日本vs欧美在线观看视频 | 小蜜桃在线观看免费完整版高清| 国产精品秋霞免费鲁丝片| 国产老妇伦熟女老妇高清| 中文资源天堂在线| 亚洲国产av新网站| 人妻系列 视频| 性高湖久久久久久久久免费观看| 亚洲国产欧美人成| av线在线观看网站| 久久久午夜欧美精品| 日日摸夜夜添夜夜爱| 又黄又爽又刺激的免费视频.| 亚洲精品久久久久久婷婷小说| 日日摸夜夜添夜夜爱| 亚洲三级黄色毛片| 男女下面进入的视频免费午夜| 亚洲婷婷狠狠爱综合网| 免费黄网站久久成人精品| 国产白丝娇喘喷水9色精品| 99久久精品热视频| 欧美成人一区二区免费高清观看| av视频免费观看在线观看| 在线观看一区二区三区| 欧美xxxx性猛交bbbb| 网址你懂的国产日韩在线| 久久久国产一区二区| 美女视频免费永久观看网站| 中文资源天堂在线| 美女国产视频在线观看| 日韩一区二区三区影片| 日本-黄色视频高清免费观看| 国产精品精品国产色婷婷| 精品亚洲乱码少妇综合久久| av在线观看视频网站免费| 亚洲国产最新在线播放| 欧美高清成人免费视频www| 少妇人妻 视频| 在线免费十八禁| 看免费成人av毛片| 欧美国产精品一级二级三级 | 欧美最新免费一区二区三区| 97在线视频观看| 内地一区二区视频在线| 中文天堂在线官网| 丰满少妇做爰视频| 伊人久久精品亚洲午夜| 欧美国产精品一级二级三级 | 99精国产麻豆久久婷婷| 日本av手机在线免费观看| 一级爰片在线观看| 亚洲欧美成人综合另类久久久| 麻豆成人午夜福利视频| 成人亚洲欧美一区二区av| 国产精品一区二区在线不卡| 精品亚洲成a人片在线观看 | 亚洲av成人精品一区久久| 街头女战士在线观看网站| av不卡在线播放| 久久鲁丝午夜福利片| 麻豆国产97在线/欧美| 亚洲人成网站在线播| 国产永久视频网站| 97热精品久久久久久| 亚洲国产精品999| 亚洲欧洲国产日韩| 欧美丝袜亚洲另类| 亚洲av日韩在线播放| 亚洲精品久久午夜乱码| 午夜免费男女啪啪视频观看| 国产男人的电影天堂91| 精品亚洲乱码少妇综合久久| 精华霜和精华液先用哪个| 亚洲精品日本国产第一区| 日韩,欧美,国产一区二区三区| 2018国产大陆天天弄谢| 丝袜喷水一区| 日韩制服骚丝袜av| 国产v大片淫在线免费观看| 22中文网久久字幕| 国内精品宾馆在线| 99视频精品全部免费 在线| 一级毛片久久久久久久久女| 国产在线男女| 大片电影免费在线观看免费| 精品亚洲成国产av| 亚洲av成人精品一二三区| a级毛色黄片| av在线蜜桃| 欧美成人a在线观看| 熟女av电影| av又黄又爽大尺度在线免费看| 在线亚洲精品国产二区图片欧美 | 寂寞人妻少妇视频99o| 在线观看免费高清a一片| 欧美老熟妇乱子伦牲交| 欧美另类一区| 美女中出高潮动态图| 亚洲欧美成人综合另类久久久| 人妻系列 视频| 国产精品一区二区性色av| 在线观看免费高清a一片| 久久亚洲国产成人精品v| 一级片'在线观看视频| 亚洲图色成人| 视频区图区小说| 美女高潮的动态| 国产高潮美女av| 欧美成人一区二区免费高清观看| 国产白丝娇喘喷水9色精品| 久久综合国产亚洲精品| 欧美高清成人免费视频www| 国产男人的电影天堂91| 亚洲精品一区蜜桃| 国产一区二区在线观看日韩| 亚洲精品456在线播放app| 久久热精品热| av不卡在线播放| 一个人看的www免费观看视频| 成人18禁高潮啪啪吃奶动态图 | 最近的中文字幕免费完整| 高清午夜精品一区二区三区| 午夜老司机福利剧场| 日韩国内少妇激情av| 91久久精品国产一区二区三区| tube8黄色片| 亚洲欧洲国产日韩| 熟妇人妻不卡中文字幕| 精品久久久久久久久亚洲| 久久久久性生活片| 亚洲av中文av极速乱| 日韩亚洲欧美综合| 国产熟女欧美一区二区| 能在线免费看毛片的网站| www.av在线官网国产| 狂野欧美激情性xxxx在线观看| 亚洲三级黄色毛片| 久久久国产一区二区| 国产 一区 欧美 日韩| 日韩不卡一区二区三区视频在线| 成年av动漫网址| 免费观看a级毛片全部| 国产 精品1| 制服丝袜香蕉在线| 国产亚洲精品久久久com| 亚洲色图av天堂| 久久久久久久精品精品| 久久精品国产亚洲av涩爱| 欧美国产精品一级二级三级 | 欧美精品人与动牲交sv欧美| av女优亚洲男人天堂| 日本免费在线观看一区| 亚洲综合精品二区| 人体艺术视频欧美日本| 亚洲va在线va天堂va国产| 亚洲经典国产精华液单| 毛片一级片免费看久久久久| 人妻制服诱惑在线中文字幕| 高清不卡的av网站| 国产黄片美女视频| 国产免费视频播放在线视频| 亚洲经典国产精华液单| av国产久精品久网站免费入址| 黄色一级大片看看| 欧美zozozo另类| 欧美+日韩+精品| 搡老乐熟女国产| av专区在线播放| 高清av免费在线| 久久久久久久亚洲中文字幕| 黑人高潮一二区| av在线app专区| 日韩制服骚丝袜av| 尤物成人国产欧美一区二区三区| 日本vs欧美在线观看视频 | 99视频精品全部免费 在线| av卡一久久| 国产在线免费精品| 91久久精品国产一区二区成人| 国产探花极品一区二区| 一区二区三区四区激情视频| 九草在线视频观看| 大片免费播放器 马上看| 黄色一级大片看看| 日日摸夜夜添夜夜爱| 亚洲国产日韩一区二区| 久久韩国三级中文字幕| av天堂中文字幕网| 中文字幕精品免费在线观看视频 | 久久久久国产精品人妻一区二区| 亚洲激情五月婷婷啪啪| 国产视频内射| 国产精品无大码| 超碰97精品在线观看| 国产真实伦视频高清在线观看| 欧美3d第一页| 精品久久久久久久久亚洲| 亚洲av不卡在线观看| 蜜臀久久99精品久久宅男| 欧美xxxx性猛交bbbb| 日韩av在线免费看完整版不卡| 人妻少妇偷人精品九色| 男女啪啪激烈高潮av片| 久久久久性生活片| 久久国产乱子免费精品| 午夜精品国产一区二区电影| 久久99热这里只有精品18| 伊人久久国产一区二区| 亚洲自偷自拍三级| 日韩一区二区视频免费看| 亚洲国产欧美人成| 国产伦理片在线播放av一区| 天美传媒精品一区二区| 网址你懂的国产日韩在线| 大片免费播放器 马上看| 国产高清不卡午夜福利| 99久国产av精品国产电影| 永久网站在线| 国产精品99久久99久久久不卡 | 大话2 男鬼变身卡| 欧美xxxx性猛交bbbb| 汤姆久久久久久久影院中文字幕| 亚洲精品中文字幕在线视频 | 欧美精品国产亚洲| 亚洲人成网站在线观看播放| 国产综合精华液| 亚洲,欧美,日韩| 嫩草影院新地址| www.av在线官网国产| 国产精品久久久久久av不卡| 欧美日韩一区二区视频在线观看视频在线| 2021少妇久久久久久久久久久| 高清黄色对白视频在线免费看 | 国产在线男女| 色视频在线一区二区三区| 欧美激情极品国产一区二区三区 | 欧美精品一区二区大全| 一级黄片播放器| 欧美精品一区二区免费开放| 中文字幕免费在线视频6| 搡女人真爽免费视频火全软件| av线在线观看网站| xxx大片免费视频| 久久久a久久爽久久v久久| 欧美精品国产亚洲| 亚洲欧美成人精品一区二区| 免费观看性生交大片5| 国产黄片美女视频| 国产精品熟女久久久久浪| 亚洲av欧美aⅴ国产| 在线免费观看不下载黄p国产| 免费人妻精品一区二区三区视频| 中文字幕制服av| 久久99热这里只有精品18| 又黄又爽又刺激的免费视频.| 国产国拍精品亚洲av在线观看| 欧美变态另类bdsm刘玥| 黄色怎么调成土黄色| 国产在线免费精品| 美女cb高潮喷水在线观看| 大话2 男鬼变身卡| 国产精品国产三级国产专区5o| 男女边摸边吃奶| 国产视频内射| 国产精品av视频在线免费观看| videos熟女内射| 99久久中文字幕三级久久日本| 大又大粗又爽又黄少妇毛片口| 国产精品欧美亚洲77777| 欧美日本视频| 91久久精品国产一区二区成人| av天堂中文字幕网| 简卡轻食公司| 国产真实伦视频高清在线观看| 亚洲美女搞黄在线观看| av免费在线看不卡| a级一级毛片免费在线观看| 偷拍熟女少妇极品色| 色综合色国产| 一本一本综合久久| 国产极品天堂在线| 国产欧美日韩一区二区三区在线 | 精品国产乱码久久久久久小说| 国产日韩欧美亚洲二区| 爱豆传媒免费全集在线观看| 大又大粗又爽又黄少妇毛片口| 激情 狠狠 欧美| 国产在线免费精品| 性色avwww在线观看| 久久人妻熟女aⅴ| 午夜激情福利司机影院| 精品久久久久久久久亚洲| 涩涩av久久男人的天堂| 欧美另类一区| 国产成人精品福利久久| 99久久精品国产国产毛片| 91久久精品国产一区二区三区| 久久亚洲国产成人精品v| 久久国产亚洲av麻豆专区| 全区人妻精品视频| 99热全是精品| 亚洲国产av新网站| 午夜免费观看性视频| 人人妻人人添人人爽欧美一区卜 | av在线播放精品| 国产av精品麻豆| 水蜜桃什么品种好| 亚洲美女黄色视频免费看| 免费黄网站久久成人精品| 亚洲自偷自拍三级| 人人妻人人爽人人添夜夜欢视频 | 国产精品99久久99久久久不卡 | 只有这里有精品99| 日日啪夜夜爽| 国产视频首页在线观看| 亚洲成色77777| av女优亚洲男人天堂| 国产午夜精品久久久久久一区二区三区| 欧美成人午夜免费资源| 色哟哟·www| 99re6热这里在线精品视频| 18禁在线无遮挡免费观看视频| 身体一侧抽搐| 欧美丝袜亚洲另类| 亚洲av.av天堂| 午夜免费观看性视频| 啦啦啦中文免费视频观看日本| 肉色欧美久久久久久久蜜桃| 秋霞在线观看毛片| 亚洲国产精品专区欧美| 蜜桃在线观看..| 六月丁香七月| 久久久久久九九精品二区国产| 亚洲精品中文字幕在线视频 | 亚洲av电影在线观看一区二区三区| 久久久久久久久久久免费av| 熟女人妻精品中文字幕| 男女下面进入的视频免费午夜| 欧美97在线视频| 免费大片18禁| 国产av码专区亚洲av| 免费在线观看成人毛片| 久久久久久伊人网av| 午夜免费男女啪啪视频观看| 亚洲高清免费不卡视频| 久久热精品热| 亚洲不卡免费看| 色哟哟·www| 亚洲中文av在线| 人妻少妇偷人精品九色| 国内揄拍国产精品人妻在线| 精品一品国产午夜福利视频| 女人十人毛片免费观看3o分钟| 国产免费一级a男人的天堂| 亚洲精品中文字幕在线视频 | 免费大片18禁| 久久人妻熟女aⅴ| 国产无遮挡羞羞视频在线观看| 亚洲一级一片aⅴ在线观看| 日日摸夜夜添夜夜添av毛片| 丰满少妇做爰视频| 久久99精品国语久久久| 在线观看人妻少妇| 国产综合精华液| 亚洲第一区二区三区不卡| 啦啦啦啦在线视频资源| 日韩三级伦理在线观看| 欧美人与善性xxx| 亚洲av免费高清在线观看| 哪个播放器可以免费观看大片| 又黄又爽又刺激的免费视频.| 青青草视频在线视频观看| 国产有黄有色有爽视频| 亚洲av综合色区一区| 在线观看三级黄色| 伊人久久精品亚洲午夜| 美女cb高潮喷水在线观看| 一区二区三区精品91| videos熟女内射| 一级毛片久久久久久久久女| 国产成人精品久久久久久| 亚洲精品中文字幕在线视频 | 日本猛色少妇xxxxx猛交久久| 午夜免费男女啪啪视频观看| 久久人人爽av亚洲精品天堂 | 少妇 在线观看| 久久99精品国语久久久| 欧美日韩亚洲高清精品| 亚洲综合色惰| 另类亚洲欧美激情| 午夜福利视频精品| 午夜福利在线在线| 久久精品国产a三级三级三级| 久久ye,这里只有精品| 国产有黄有色有爽视频| 欧美3d第一页| 在线观看三级黄色| 亚洲欧洲日产国产| 夫妻性生交免费视频一级片| 久久99热6这里只有精品| 国产一区亚洲一区在线观看| 久久鲁丝午夜福利片| 18+在线观看网站| 国产黄片美女视频| 免费在线观看成人毛片| 亚洲精品乱久久久久久| 一个人看视频在线观看www免费| 国产淫片久久久久久久久| 日韩不卡一区二区三区视频在线| 18+在线观看网站| 欧美成人一区二区免费高清观看| 国产极品天堂在线| 国产亚洲av片在线观看秒播厂| 久久久久久久精品精品| 在线观看av片永久免费下载| 国产91av在线免费观看| 麻豆国产97在线/欧美| 三级经典国产精品| 99热全是精品| 亚洲一级一片aⅴ在线观看| 国产精品99久久久久久久久| 天天躁日日操中文字幕| 国产精品偷伦视频观看了| 亚洲精品一区蜜桃| 狂野欧美激情性xxxx在线观看| 免费观看在线日韩| 中文字幕亚洲精品专区| 久久ye,这里只有精品| 午夜福利在线观看免费完整高清在| 在线亚洲精品国产二区图片欧美 | 精品国产乱码久久久久久小说| 少妇的逼水好多| 高清欧美精品videossex| 深夜a级毛片| 国产伦精品一区二区三区四那| 欧美xxxx黑人xx丫x性爽| 日本av免费视频播放| 在线观看免费视频网站a站| 一级毛片我不卡| 婷婷色综合大香蕉| 97超碰精品成人国产| 大香蕉97超碰在线| 搡女人真爽免费视频火全软件| 欧美日本视频| 色婷婷久久久亚洲欧美|