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International Conference on Ubiquitous Robots and Ambient Intelligence最新文献

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Detecting steel material based on sound signal 基于声信号的钢材料检测
International Conference on Ubiquitous Robots and Ambient Intelligence Pub Date : 2016-08-01 DOI: 10.1109/URAI.2016.7734101
Yuejing Zhao, Kanghua Qi, Zhejuan Zhang
{"title":"Detecting steel material based on sound signal","authors":"Yuejing Zhao, Kanghua Qi, Zhejuan Zhang","doi":"10.1109/URAI.2016.7734101","DOIUrl":"https://doi.org/10.1109/URAI.2016.7734101","url":null,"abstract":"For the processing of the pylon, there is need do some operations on it, such as clamping, punching, shearing and other percussion. It will produce noise when shower punching on the angle cleat. Then we put forward the proposal that using the voice signal to test steel material. Q235 and Q345 are the general material. Using sound sensor and collection device structures to put up experimental system. Sound signal has been collected and the standard template library has been established according to the system. To the actual processing of the collected test sound signal, Mel frequency cepstrum parameters (MFCC) has been extracted. The Mel frequency cepstrum parameters are that the characteristic parameters. Then calculates the distance between the measured voice signal and standard templates using Dynamic Time Warping DTW method. The test results show that the system can accurately detect different models of two kinds of Angle steel material.","PeriodicalId":182404,"journal":{"name":"International Conference on Ubiquitous Robots and Ambient Intelligence","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132939591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gearbox fault diagnosis based on LMD and cyclostationary demodulation 基于LMD和周期平稳解调的齿轮箱故障诊断
International Conference on Ubiquitous Robots and Ambient Intelligence Pub Date : 2016-08-01 DOI: 10.1109/URAI.2016.7734123
Zhuting Yao, Yuchen Hu
{"title":"Gearbox fault diagnosis based on LMD and cyclostationary demodulation","authors":"Zhuting Yao, Yuchen Hu","doi":"10.1109/URAI.2016.7734123","DOIUrl":"https://doi.org/10.1109/URAI.2016.7734123","url":null,"abstract":"A ZS-65 gearbox system is as the study object, the gear's characteristic frequency and bearing's characteristic frequency of gearbox are determined based on analysis of the test platform, structure parameters, operating principle, and the layout of measuring point and vibration signals are collected in normal status, tooth wear, and outer ring failure condition, the motor speed is set as 1200r/min, the sampling frequency is 4000Hz, within 1s samples signal are selected and analyzed. The vibration signals are directly demodulated by using cyclostationary demodulation method, and the cyclic spectrum and cycle frequency axis projection are got, and the frequency aliasing phenomena are analyzed. On this basis, by using the local mean decomposition which is based on the signal itself information adaptive decomposition, and resulted PF component has a real physical significance, obtained time-frequency distribution can be clearly and accurately reflect the distribution regularities of signal energy in space various scales. Based on the vibration signal, first LMD decomposition downs to it as individual components' modulated signal, the energy of various components are calculated in addition to the residual value, and normalization processing, wherein the decomposed energy concentrated product functions are proceeded the cyclostationary demodulation, obtained their cyclic spectrum, then the cyclic spectrum are combined and extracted and analyzed slices map in mesh frequency, it inhibits the influence of cross interference items directly uses cyclostationary demodulation, and gets a good result.","PeriodicalId":182404,"journal":{"name":"International Conference on Ubiquitous Robots and Ambient Intelligence","volume":"591 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132754468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Measurement and analysis of a horizontal-axis washing machine for low-frequency abnormal noise 卧式洗衣机低频异常噪声的测量与分析
International Conference on Ubiquitous Robots and Ambient Intelligence Pub Date : 2016-08-01 DOI: 10.1109/URAI.2016.7734103
Xiaojuan Sun, Yanjie Liu, Jianrun Zhang, Hong Zhang
{"title":"Measurement and analysis of a horizontal-axis washing machine for low-frequency abnormal noise","authors":"Xiaojuan Sun, Yanjie Liu, Jianrun Zhang, Hong Zhang","doi":"10.1109/URAI.2016.7734103","DOIUrl":"https://doi.org/10.1109/URAI.2016.7734103","url":null,"abstract":"The distinct noise of a horizontal-axis washing machine is analysed through the method of spectrum and correlation analysis. A measurement setup is designed to build a three input-single output system. The sound pressure in a standard location as the output, and the sound pressures near drum bearings and near the motor and the acceleration on the drum as three inputs are measured, respectively. The spectral and coherence results show that the puzzled abnormal noise is mainly in low frequencies below 225Hz, and that the harmonics of drum base frequency from the second to the fifteen are presented in the A-weighted sound auto-spectrum in the loading condition. It is concluded that there should be problems of bearings or of misalignment and clearance in the shafting and the drum bearing should be a main noise source for the washing machine. The study in the paper is helpful for the noise reduction of the washing machine and the method proposed is useful for the noise analysis and the identification of the noise sources.","PeriodicalId":182404,"journal":{"name":"International Conference on Ubiquitous Robots and Ambient Intelligence","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114525355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Skills learning in robots by interaction with users and environment 机器人通过与用户和环境的互动来学习技能
International Conference on Ubiquitous Robots and Ambient Intelligence Pub Date : 2014-11-01 DOI: 10.1109/URAI.2014.7057522
Sylvain Calinoti
{"title":"Skills learning in robots by interaction with users and environment","authors":"Sylvain Calinoti","doi":"10.1109/URAI.2014.7057522","DOIUrl":"https://doi.org/10.1109/URAI.2014.7057522","url":null,"abstract":"The fast technological evolution and dissemination of multimodal sensors and compliant actuators bring a new human-centric perspective to robotics. The variety of human-robot interactions that stem from these new capabilities unveil compelling challenges for machine learning.","PeriodicalId":182404,"journal":{"name":"International Conference on Ubiquitous Robots and Ambient Intelligence","volume":"194 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121741729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Welcome to URAI 2011 欢迎来到2011年
International Conference on Ubiquitous Robots and Ambient Intelligence Pub Date : 1900-01-01 DOI: 10.1109/urai.2011.6146046
Chul-Goo Kang
{"title":"Welcome to URAI 2011","authors":"Chul-Goo Kang","doi":"10.1109/urai.2011.6146046","DOIUrl":"https://doi.org/10.1109/urai.2011.6146046","url":null,"abstract":"","PeriodicalId":182404,"journal":{"name":"International Conference on Ubiquitous Robots and Ambient Intelligence","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121676693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
AE monitoring and analysis of tool wear of numerical control lathe 数控车床刀具磨损的声发射监测与分析
International Conference on Ubiquitous Robots and Ambient Intelligence Pub Date : 1900-01-01 DOI: 10.1109/URAI.2016.7733985
Jixuan Liu, Baojian Wang, Lijuan Yang, B. Wen
{"title":"AE monitoring and analysis of tool wear of numerical control lathe","authors":"Jixuan Liu, Baojian Wang, Lijuan Yang, B. Wen","doi":"10.1109/URAI.2016.7733985","DOIUrl":"https://doi.org/10.1109/URAI.2016.7733985","url":null,"abstract":"To study the mechanism and characteristics of tool wear, the frequency band energy analysis method of acoustic emission(AE) signal based on wavelet packet decomposition were used. The experiments were conducted on the FTC20numericalcontrol lathe using carbide tool. The band components of the AE signals during turning machining were analyzed and the friction signal was extracted from the raw AE signal. Then the percentages of the energy and the main frequency range distribution of friction signals and chip forming signals in the raw AE signals were investigated. The worn amount of tool nose δ was used as a quantitative measuring index of the tool wear, and the center frequency of signal was defined. The AE signals captured under different tool wears and broken states were analyzed by wavelet packet decomposition, and the total energy, the energy of each frequency band and the center frequency of AE signal was obtained. By analyzing the results, the energies of each frequency band and the center frequency of AE signal changing with the tool wear in the process of turning was obtained. The results showed that the chip forming signal was the key components of the AE signals; and with the increase of the amount of tool nose δ, the energy of 20-40kHz band decreased and the energy of 40-60kHz band as well as the center frequencies of AE signals increased. When the tool broke resulting from the development of the crater wear, the total energy and the root mean square of the AE signals increased greatly and the variation trends of the energy of different frequency bands were the same as those of tool wear.","PeriodicalId":182404,"journal":{"name":"International Conference on Ubiquitous Robots and Ambient Intelligence","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131177223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Fuzzy sliding mode control of unicycle robot 独轮车机器人的模糊滑模控制
International Conference on Ubiquitous Robots and Ambient Intelligence Pub Date : 1900-01-01 DOI: 10.1109/URAI.2011.6145875
Jae-Oh Lee, In-Woo Han, Jangmyung Lee
{"title":"Fuzzy sliding mode control of unicycle robot","authors":"Jae-Oh Lee, In-Woo Han, Jangmyung Lee","doi":"10.1109/URAI.2011.6145875","DOIUrl":"https://doi.org/10.1109/URAI.2011.6145875","url":null,"abstract":"This paper proposes a single wheel balanced robot. In this paper, unicycle robot is implemented by the mobile inverted pendulum control method for pitch axis and the reaction wheel pendulum control method for roll axis. We assumed that both Roll dynamics and Pitch dynamics are decoupled. So, we obtained, respectively, the Roll dynamics and Pitch dynamics. And we designed the controller separately. Robot's angle data is obtained by a fusion of gyro sensor and accelerometer. Experiment results show the performance of the controller.","PeriodicalId":182404,"journal":{"name":"International Conference on Ubiquitous Robots and Ambient Intelligence","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116762139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Model based assembly state estimation algorithm for the components of Tablet PC 基于模型的平板电脑组件装配状态估计算法
International Conference on Ubiquitous Robots and Ambient Intelligence Pub Date : 1900-01-01 DOI: 10.1109/URAI.2017.7992814
Dong-Hyeong Lee, Min-Woo Na, Young-Loul Kim, Jae-Bok Song
{"title":"Model based assembly state estimation algorithm for the components of Tablet PC","authors":"Dong-Hyeong Lee, Min-Woo Na, Young-Loul Kim, Jae-Bok Song","doi":"10.1109/URAI.2017.7992814","DOIUrl":"https://doi.org/10.1109/URAI.2017.7992814","url":null,"abstract":"To overcome the disadvantages of position control and force control based assembly strategies for robotic assembly of small precision parts of mobile IT devices, the model based assembly strategy was applied. The assembly model was established based on the position data of the robot end-effector and the threshold value of the contact force data about the specific contact formations, and the contact formation and the assembly result were determined based on the established model. Also, the validity of the algorithm is verified by comparing the success of the actual assembly results with the assembly results judged by the assembly algorithm.","PeriodicalId":182404,"journal":{"name":"International Conference on Ubiquitous Robots and Ambient Intelligence","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125068721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A study on the disaster response scenarios using robot technology 基于机器人技术的灾害响应场景研究
International Conference on Ubiquitous Robots and Ambient Intelligence Pub Date : 1900-01-01 DOI: 10.1109/URAI.2017.7992658
Seungsub Oh, Jehun Hahm, H. Jang, Soyeon Lee, J. Suh
{"title":"A study on the disaster response scenarios using robot technology","authors":"Seungsub Oh, Jehun Hahm, H. Jang, Soyeon Lee, J. Suh","doi":"10.1109/URAI.2017.7992658","DOIUrl":"https://doi.org/10.1109/URAI.2017.7992658","url":null,"abstract":"There are lots of dangerous situations in disaster like fire, toxic gas accident and so on. In these circumstances, it is hard to cope with disaster only by human activities. Therefore, robot is the only means that can be used in disaster environment where humans cannot cope with. In order to use the robot in disaster situation, the most important thing is to develop a robot utilization scenario. In this paper, we address new scenario using robots in difficult disaster to deal with only by human power.","PeriodicalId":182404,"journal":{"name":"International Conference on Ubiquitous Robots and Ambient Intelligence","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114597113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Development of servo valve nozzle ultrasonic auxiliary press-fit system 伺服阀喷嘴超声辅助压合系统的研制
International Conference on Ubiquitous Robots and Ambient Intelligence Pub Date : 1900-01-01 DOI: 10.1109/URAI.2016.7734051
Dongxiang Shao, Ye Li, Jie Deng, Yuefeng Li, G. Wang
{"title":"Development of servo valve nozzle ultrasonic auxiliary press-fit system","authors":"Dongxiang Shao, Ye Li, Jie Deng, Yuefeng Li, G. Wang","doi":"10.1109/URAI.2016.7734051","DOIUrl":"https://doi.org/10.1109/URAI.2016.7734051","url":null,"abstract":"Ultrasonic vibration has good prospects in precision assembly. In recently, the press-fitting of nozzle in the servo valve still needs manual operation. There are many disadvantages such as low success rate, low efficiency, big workload and so on needed to be removed urgently. So we design the ultrasound-assisted press-fit system for that and analyze the system performance. Through theoretical analysis and ultrasonic vibration experiments, auxiliary press-fit system with ultrasonic device has been made. We obtain a lot of data using the facility. We find that ultrasonic vibration with rational parameters can improve the effect of press-fit largely.","PeriodicalId":182404,"journal":{"name":"International Conference on Ubiquitous Robots and Ambient Intelligence","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115428167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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