Akimasa Otsuka

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Until now, we have established the multi mobile robot system based on the wireless communication and subsumption architecture. In this system, a command is decided in the supervisory server based on subsumption architecture. The server transmits a command packet to each mobile robot by wireless communication. Each mobile robot moves based on the command(More)
A cast metal is generally produced by using a sand mold. A foamed polystyrene mold is used as the master mold for making the corresponding sand mold. Recently, the development of a flexible machining robot for foamed polystyrene materials is expected in the cast metal industries because of the high cost and inefficiency of conventional large-sized CNC(More)
In this paper, a unique multiple mobile robots system is proposed to enable students or mechanical engineers to efficiently learn a subsumption architecture for swarm intelligence. The subsumption architecture is known as one of the behaviour-based artificial intelligences. Each of multiple mobile robots has three wheels driven by DC motors and six PSD(More)
This chapter first describes the robotic CAM system proposed from the viewpoint of robotic servo controller for an industrial robot RV1A. Then, a reverse post-processor is proposed for the robotic CAM system to online generate the original CL data from the NC data post-processed for a five-axis NC machine tool with a tilting head. Next, an application of(More)
In this paper, genetic algorithms with a variable search space function are proposed for fine gain tuning of a resolved acceleration controller which is one of model-based robotic servo controllers. Genetic algorithms proposed in this paper have a variable search space function which is activated if the optimal solution is not updated for a fixed number of(More)
In this paper, a post processor for an industrial robot FANUC R2000iC is introduced. Without conventional teaching process, the post processor regularly generates a robotic program written in LS format from cutter location source data called CLS data. The CLS data supporting “GOTO” and “CIRCLE” statements for linear and curved(More)
A cast metal is generally produced by using a sand mold. A foamed polystyrene mold is used as the master mold for making the corresponding sand mold. Recently, the development of a flexible machining robot for foamed polystyrene materials is expected in the cast metal industries because of the high cost and inefficiency of conventional large-sized CNC(More)
To establish an algorithm design method for swarm robotics is important task because technology of the swarm robotics is expected due to its robustness. Various mobile robots are also developed for swarm robotics. The algorithm to realize a certain swarm behavior depends on robot hardware, i.e. equipped sensors, driving motors, size of robot or presence of(More)
There are two serious requirements to machining systems used in manufacturing industries. They are machining quality and efficiency. In this paper, a vibrational motion control is proposed for an endmill attached to the tip of a machining robot to suppress the occurrence of undesirable cusp marks. In addition, the calculation of radius of curvature along(More)