In this paper, I focused on developing a robot arm with three degrees of freedom and an autonomous function. I modeled my research on the actions of animals, which adjust well to environmental change, and aimed for co...
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This study developed a self-localization system that uses landmarks and movement to pursue a moving object. Specifically, an omni-directional camera was adopted as a visual sensor and was installed on a robot. The ima...
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ISBN:
(纸本)9784990288013
This study developed a self-localization system that uses landmarks and movement to pursue a moving object. Specifically, an omni-directional camera was adopted as a visual sensor and was installed on a robot. The image from the omni-directional camera was processed to detect a landmark (an object), and the robot's distance from that landmark was then measured. These functions allowed the mobile robot to pursue a moving object. The measurement of distance based on the omni-directional image depends on the precise inclination of the camera. Consideration of this factor enabled the measurement of distance of relatively close objects with a high degree of precision. In this study, the effectiveness of this system was investigated by various experiments evaluating the measurement of distance, the movement to pursuit a moving object, and self-localization. The robot demonstrated its ability to recognize a moving object and to measure its distance and its angle in relation to the object. Based on these abilities, the robot could successfully follow a moving object. The robot's ability to recognize its location was seen to be based on its ability to recognize certain landmarks, the functions of which are mentioned above.
We are attempting to develop an autonomous mobile robot that has the ability to perform practical tasks in a human living environment by using information derived from sensors and a knowledge database. When a robot is...
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In this report, we describe a user-recognition system for an autonomous robot. The proposed method enables the robot to recognize the person who instructs it without placing any markers in human living environments. T...
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This paper describes the development of a self-care support robot, developed to support elderly people with mobility problems. The Kitasap2 consists of a host computer and the physical body of a robot equipped with a ...
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This paper presents the methods which make a design process of control system efficient. The real-time control framework makes writing real-time control programs easy. Real-time control programs are generated from sim...
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This paper presents the methods which make a design process of control system efficient. The real-time control framework makes writing real-time control programs easy. Real-time control programs are generated from simulation program automatically. The idea of an object model and the factory method pattern are used for automatic generation of real-time control program. Separation of platform dependent parts makes non real-time parts can be independent from platform. We develop a platform integrated environment of the simulation and the real-time control for control system using above methods.
In this paper, we propose an efficient control method with a sliding mode technique to realize a high-precision and a high-speed positioning control. This method makes a response of a real system follows the reference...
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In this paper, we propose an efficient control method with a sliding mode technique to realize a high-precision and a high-speed positioning control. This method makes a response of a real system follows the reference precisely even under the condition that the modeling errors exist between the numerical feed forward model and the real system. A model following control is used to generally recognize as a high performance positioning. But, ordinary there are several modeling errors existing between the numerical model and the real system. We pick up a mass error and a dynamical friction error. In this proposal method, we assign two places non-linear gains. One non-linear gain is the gain of the velocity reference from the feed forward part and the other is the gain of the force reference. As we use this method, a feed forward loop and a feed back loop are not changed. So, this method has no influence on the stability. In this proposal method, the gains are decided with a phase plane of a sliding mode control.
The deep submicron (DSM) semiconductor technologies will make the worst-case design impossible, since they can not provide design margins that it requires. Research directions should go to typical-case design methodol...
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The deep submicron (DSM) semiconductor technologies will make the worst-case design impossible, since they can not provide design margins that it requires. Research directions should go to typical-case design methodologies, where designers are focusing on typical cases rather than worrying about very rare worst cases. In this paper, canary logic is proposed as a promising technique that enables the typical-case design. It is easier to design than the previously proposed Razor logic by eliminating delayed clock. Estimates based on gate-level simulations show that the canary logic achieves average power reduction of 30% by exploiting dynamic variations in circuit delay.
There is now an increasing demand for sharing images and image data for process integration among healthcare institutions. Web services technology has recently been widely proposed and gradually adopted as a platform ...
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We have performed numerical study on random Boolean networks with power-law rank outdegree distributions to find local structural cause for emergence of high or low degree of coherence in binary state variables of the...
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