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Proceedings Fourth Annual Conference on Mechatronics and Machine Vision in Practice最新文献

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Experimental study on ultrasonic signal transmission within the water-filled pipes 超声信号在充水管道内传输的实验研究
Proceedings Fourth Annual Conference on Mechatronics and Machine Vision in Practice Pub Date : 1997-09-23 DOI: 10.1109/MMVIP.1997.625296
Yinghui Li, S. Harrold, L. Yeung
{"title":"Experimental study on ultrasonic signal transmission within the water-filled pipes","authors":"Yinghui Li, S. Harrold, L. Yeung","doi":"10.1109/MMVIP.1997.625296","DOIUrl":"https://doi.org/10.1109/MMVIP.1997.625296","url":null,"abstract":"We present the results of system design and experiments carried out in a water tank and water-filled pipes using wireless ultrasonic communication methods. The experimental study by measurement and analysis of multipath ultrasonic transmission within water-filled pipes and its effect on the transmission link are investigated. Pulsed carrier signals of short duration are used to estimate the characteristics of the channels and the results have been used to improve the performance of the ultrasonic transmission link. The link is to be used to control and talk with an ROV named Pipe Rover. The studies show that the transmission in the pipes is, as expected, much more reverberant than in the open water. A digital link has been tested at a bit rate of 600 baud at the transmission level using FSK modulation.","PeriodicalId":261635,"journal":{"name":"Proceedings Fourth Annual Conference on Mechatronics and Machine Vision in Practice","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116366021","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: 7
Sharpening directivity of ultrasonic range sensor using multiple transmitters by different amplitude and pulse width method 采用不同幅度和脉宽的方法对多发射机超声测距传感器指向性进行锐化
Proceedings Fourth Annual Conference on Mechatronics and Machine Vision in Practice Pub Date : 1997-09-23 DOI: 10.1109/MMVIP.1997.625288
M. Hiyama, T. Emura, M. Kumagai
{"title":"Sharpening directivity of ultrasonic range sensor using multiple transmitters by different amplitude and pulse width method","authors":"M. Hiyama, T. Emura, M. Kumagai","doi":"10.1109/MMVIP.1997.625288","DOIUrl":"https://doi.org/10.1109/MMVIP.1997.625288","url":null,"abstract":"It is necessary to increase detectable length of ultrasonic range sensor for autonomous land vehicles. This means that we must radiate the powerful ultrasonic waves whose directivity is sharp. However sound waves have the characteristic that small attenuation in propagation and sharp directivity are incompatible with each other. In order to decrease attenuation rate for distance, the authors used multiple ultrasonic transmitters whose frequency is 40 kHz although their directivities are not sharp. We tried to sharpen the directivity by using plural transmitters and by exciting multiple transmitters whose individual outputs are different from each other. This paper describes how to get sharp directivity by ultrasonic transmitters array and its design method. The effectiveness is confirmed by simulations and experiments.","PeriodicalId":261635,"journal":{"name":"Proceedings Fourth Annual Conference on Mechatronics and Machine Vision in Practice","volume":"21 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123014690","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
The dynamic flexing of a golf club shaft during a typical swing 在典型的挥杆过程中高尔夫球杆的动态弯曲
Proceedings Fourth Annual Conference on Mechatronics and Machine Vision in Practice Pub Date : 1997-09-23 DOI: 10.1109/MMVIP.1997.625343
S. Newman, S. Clay, P. Strickland
{"title":"The dynamic flexing of a golf club shaft during a typical swing","authors":"S. Newman, S. Clay, P. Strickland","doi":"10.1109/MMVIP.1997.625343","DOIUrl":"https://doi.org/10.1109/MMVIP.1997.625343","url":null,"abstract":"Describes how a set of longitudinal strain gauges was fitted along a golf club shaft and used to measure dynamic forces. The signals were transmitted by a cable running through the handle and up the user's sleeve to an Elonex PC 450, where the data were analysed using the MATLAB package.","PeriodicalId":261635,"journal":{"name":"Proceedings Fourth Annual Conference on Mechatronics and Machine Vision in Practice","volume":"26 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116566084","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: 14
Autonomous LHD loading LHD自动装载
Proceedings Fourth Annual Conference on Mechatronics and Machine Vision in Practice Pub Date : 1997-09-23 DOI: 10.1109/MMVIP.1997.625330
M.K. Petty, J. Billingsley, T. Tran-Cong
{"title":"Autonomous LHD loading","authors":"M.K. Petty, J. Billingsley, T. Tran-Cong","doi":"10.1109/MMVIP.1997.625330","DOIUrl":"https://doi.org/10.1109/MMVIP.1997.625330","url":null,"abstract":"Machine vision is used for guidance of the autonomous loading of ore during underground mining. Three dimensional spatial data of the ore pile is derived in real-time from camera images and is used for planning the scooping process. A sensory integration technique combines feedforward from the same vision system with wheel odometry to guide the vehicle to and from the ore pile. A computationally efficient kinematic model of the vehicle is derived and its application discussed. LHD (load-haul-dump) vehicles are used extensively in underground mining. Increasing production costs and the ongoing quest for improved safety provide a great incentive to automate their working cycle. This research concentrates on a major component of this task-automation of loading. The proposed loading controller will load an LHD swiftly and safely while leaving the ore pile in a suitable condition for subsequent bucket scoops.","PeriodicalId":261635,"journal":{"name":"Proceedings Fourth Annual Conference on Mechatronics and Machine Vision in Practice","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125700442","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: 20
Development of an image processing system for a special purpose mobile robot navigation 一种专用移动机器人导航图像处理系统的开发
Proceedings Fourth Annual Conference on Mechatronics and Machine Vision in Practice Pub Date : 1997-09-23 DOI: 10.1109/MMVIP.1997.625337
E. Cokal, A. Erden
{"title":"Development of an image processing system for a special purpose mobile robot navigation","authors":"E. Cokal, A. Erden","doi":"10.1109/MMVIP.1997.625337","DOIUrl":"https://doi.org/10.1109/MMVIP.1997.625337","url":null,"abstract":"In this study, a complete image processing and analysis system is developed for a special purpose mobile robot. The aim of this mobile robot is to recognize open doors and move through the open door with narrow clearance. The output of image processing is used as input data file to a neural network (NN) based pattern recognition software. The NN inform the greater system about the existence of a door. Further process is to interpret the door status by using some knowledge based algorithms. If the door is open, next process determines position of the mobile robot with respect to the open door. This paper includes related image processing algorithms for image analysis stages. Selection criteria and modification algorithms of the implemented algorithms are presented to some extend. Some test results are also presented.","PeriodicalId":261635,"journal":{"name":"Proceedings Fourth Annual Conference on Mechatronics and Machine Vision in Practice","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129935940","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: 12
Improv and EyeBot real-time vision on-board mobile robots Improv和EyeBot实时视觉车载移动机器人
Proceedings Fourth Annual Conference on Mechatronics and Machine Vision in Practice Pub Date : 1900-01-01 DOI: 10.1109/MMVIP.1997.625307
T. Braunl
{"title":"Improv and EyeBot real-time vision on-board mobile robots","authors":"T. Braunl","doi":"10.1109/MMVIP.1997.625307","DOIUrl":"https://doi.org/10.1109/MMVIP.1997.625307","url":null,"abstract":"On-board image processing for mobile robots provides a vast number of application possibilities in both research and practice. We are interested in the development of small, inexpensive mobile robot systems, incorporating on-board real-time vision systems. Currently, vision-based navigation for mobile robots requires either large robot systems, capable of carrying heavy computer systems, tethered systems, or wireless links to a host system, which computes the image data off-line. Our approach consists of the software tool Improv and the hardware/software robot vision module EyeBot. Improv is a PC-based interactive real-time design tool for image processing routines, and EyeBot is an extendable base platform for mobile robots.","PeriodicalId":261635,"journal":{"name":"Proceedings Fourth Annual Conference on Mechatronics and Machine Vision in Practice","volume":"2 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":"115564643","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: 9
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