The Experts below are selected from a list of 1231104 Experts worldwide ranked by ideXlab platform
Zheng Dajun - One of the best experts on this subject based on the ideXlab platform.
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Remote Real-time Processing of Geologic Field Information
Computer Engineering, 2001Co-Authors: Zheng DajunAbstract:This paper presents a real-time, highly automatic Information processing system of geologic Field operation by using the geologic Field processors as the remote nodes and the Information processing center of the base to form a remote network. A Field processor set is equipped with the GPS set, a special GSM wireless Modem,and the relate control components. This system can control the Field operation quality and greatly shorten the operation periods.
Yasuhiro Oikawa - One of the best experts on this subject based on the ideXlab platform.
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ICASSP - Extraction of sound Field Information from flowing dust captured with high-speed camera
2012 IEEE International Conference on Acoustics Speech and Signal Processing (ICASSP), 2012Co-Authors: Mariko Akutsu, Yasuhiro OikawaAbstract:In this paper, we propose a measuring method of the sound Field from high-speed movie of dust. The movements of dust in the sound Field are affected by the sound vibration. We observe the dust using high-speed cameras. The movie is recorded by one high-speed camera in order to get the Information of 2-D sound Field and two high-speed cameras for 3-D. The influence of air current is reduced from the movement of dust so that the sound Field Information is extracted. The experimental results indicate that this method is effective to observe the sound Field especially composed of low frequency components.
Hui Fang - One of the best experts on this subject based on the ideXlab platform.
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Application note: A Pocket PC based Field Information fast collection system
Computers and Electronics in Agriculture, 2008Co-Authors: Hui FangAbstract:To acquire and analyze Field Information quickly and effectively, a Pocket PC (PPC) based Field Information fast collection system was designed. Compared with a desktop computer, the operation system of this system (Windows CE) is greatly different in many aspects of system development and design. Key technologies investigated included geographic Information system (GIS), spatial access methods, database technology on Windows CE and sampling control plan. Considering the uniqueness of farms, an object-oriented farm model was developed to describe farm objects properly, edit sampling plan conveniently, and perform sampling control easily. The system can be used with the global positioning system (GPS) and sensors to acquire and analyze Field Information instantly. Some examples are used to explain the use of the system. The development of the system supports fast collection and real-time processing of precision farming Field Information.
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Study on Farm Field Information on-line Measurement Instrument
2005 IEEE Instrumentationand Measurement Technology Conference Proceedings, 2005Co-Authors: Zhenjun Qiu, Hui FangAbstract:In order to acquire synchronous multi-Information in precision agriculture, a farm Field Information measurement instrument with GPS position function was developed. This instrument, which mainly consists of a single-chip microcomputer (SCM), a keyboard, a LCD display, several sensors and a GPS receiver, was designed to synchronously integrate the signals from both sensors and GPS receiver. In this paper, we took soil water content acquisition as an example. And results had showed this device worked very well with a SWR-2 sensor and GPS25 receiver in respectively obtaining high-precise multiple soil moisture Information of vegetable terra, cropland and gravel terra. In addition, the following plane and section tests using the instrument and its corresponding interpolation analysis with software Arc View also afforded a feasible and effective method for further soil moisture researches
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Study on Field Information Fast Collection System
2005 IEEE Instrumentationand Measurement Technology Conference Proceedings, 1Co-Authors: Hui Fang, Yidan BaoAbstract:A palm-sized personal computer (PPC) based Field Information fast collection system was designed for the purpose of acquiring and analyzing Field Information effectively. Compared with desktop PC, the operation system of this system (Windows CE) is greatly different in many aspects. So some key technologies was analyzed and debated. They are geographic Information system (GIS), spatial accessing methods, database technology on Windows CE, sampling control plan, a special buffer analysis method and etc. Considering the particularity of farms, an object-oriented farm model was put forward. As a real-time system, the system can be used with Global Positioning System (GPS) and kinds of sensors to acquire and analyze Field Information instantly. The research and development of the system provided key technology for the development of precision farming Field Information fast collection and real-time processing equipment
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Field Information fast collection and real-time processing system based on palm-sized PC
Fifth World Congress on Intelligent Control and Automation (IEEE Cat. No.04EX788), 1Co-Authors: Hui FangAbstract:To quickly and effectively acquire and analyze Field Information, a palm-sized personal computer (PPC) based Field Information fast collection and real-time processing system was designed. Compared with desktop computer, the operation system, windows CE, this one has brought great difference in system development and design due to its hardware. So, the difference of key technologies of the system was analysed and debated. These key technologies includes geographic Information system (GIS), spatial accessing methods, database technology on windows CE, sampling control plan, and etc. Considering the particularity of farms, an object-oriented farm model was proposed to describe farm objects properly, edit sampling plan conveniently and do sampling control easily. As a kind of real- time system, the system can be used with global positioning system (GPS) and kinds of sensors to acquire and analyse Field Information instantly. The precision test of two GPS receivers (Agl32 and Map330) was finished by the system. The result of experiment validated higher accuracy and stability of Agl32. So Agl32 is more suitable to be used in precision farming. The experiment process and result also indicated strong practicality of the system.
William E. Mcilroy - One of the best experts on this subject based on the ideXlab platform.
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A role for the lower visual Field Information in stair climbing.
Gait & posture, 2019Co-Authors: Veronica Miyasike-dasilva, Jonathan C. Singer, William E. McilroyAbstract:Abstract Background Locomotion on stairs is challenging for balance control and relates to a significant number of injurious falls. The visual system provides relevant Information to guide stair locomotion and there is evidence that peripheral vision is potentially important. Research question This study investigated the role of the lower visual Field Information for the control of stair walking. It was hypothesized that restriction in the lower visual Field (LVF) would significantly impact gaze and locomotor behaviour specifically during descent and during transition phases emphasizing the importance of the LVF Information during online control. Methods Healthy young adults (n = 12) ascended and descended a 7-step staircase while wearing customized goggles that restricted the LVF. Three visual conditions were tested: full Field of view (FULL); 30° (MILD), and 15° (SEVERE) of lower Field of view available. Stride time, head pitch angle and handrail use were assessed during approach, transition steps (two steps at the top and bottom of the stairs) and middle step phases. Results Transient downward head pitch angle increased with LVF restriction, while walk speed decreased and handrail use increased. Occlusion impaired stair descent more strongly than ascent reflected by a larger downward head pitch angles and slower walk times. LVF restriction had a greater influence on stride time and head angle during the approach and first transition compared to other stair regions. Significance Information from the lower visual Field is important to guide stair walking and particularly when negotiating the first few steps of a staircase. Restriction in the lower visual Field during stair walking results in more cautious locomotor behaviour such as walking slower and using the handrails. In daily activities, tasks or conditions that restrict or alter the lower visual Field Information may elevate the risk for missteps and falls.
Mariko Akutsu - One of the best experts on this subject based on the ideXlab platform.
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ICASSP - Extraction of sound Field Information from flowing dust captured with high-speed camera
2012 IEEE International Conference on Acoustics Speech and Signal Processing (ICASSP), 2012Co-Authors: Mariko Akutsu, Yasuhiro OikawaAbstract:In this paper, we propose a measuring method of the sound Field from high-speed movie of dust. The movements of dust in the sound Field are affected by the sound vibration. We observe the dust using high-speed cameras. The movie is recorded by one high-speed camera in order to get the Information of 2-D sound Field and two high-speed cameras for 3-D. The influence of air current is reduced from the movement of dust so that the sound Field Information is extracted. The experimental results indicate that this method is effective to observe the sound Field especially composed of low frequency components.