• Journal of the Institute of Convergence Signal Processing
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• v.14 no.2
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• pp.124-129
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• 2013

Hexapod walking robots are superior to biped or quadruped ones in terms of walking stability. Therefore hexapod robots have the advantage in performing intelligent tasks based on walking stability. In this paper, we propose a hexapod robot that has one fore leg, one hind leg, two left legs, and two right legs and can perform various intelligent tasks. We build the robot by using 26 motors and implement a controller which consists of a host PC, a DSP main controller, an AVR auxiliary controller, and smart phone/pad. We show by several experiments that the implemented robot can perform various intelligent tasks such as uneven surface walking, tracking and kicking a ball, remote control and 3D monitoring by using data obtained from stereo camera, infrared sensors, ultra sound sensors, and contact sensors.

• Proceedings of the Korea Information Processing Society Conference
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• 2019.05a
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• pp.440-442
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• 2019

메카넘 휠과 4족 및 6족의 다리를 갖는 탐사 및 재난 로봇을 바탕으로 휠과 6족이 함께 존재하는 탐사 및 재난 로봇이다. 평지나 완만한 길에선 메카넘 휠을 이용해 빠르게 굴러가는 모습을 볼 수 있다. 그리고 계단이나 산악지대 같은 경사가 높고 휠로 이동하기 힘든 공간은 부착된 6족 다리를 이용해 걸어 나가는 모습을 볼 수 있다. 이러한 휠과 6족이 결합된 탐사 및 재난 로봇은 사람의 조종 없이 영상처리와 여려가지 센서를 이용해 스스로 자율주행 하는 모습을 볼 수 있다.

• Journal of the Korean Institute of Intelligent Systems
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• v.26 no.3
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• pp.169-175
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• 2016

There are many researches to develop robots that improve its mobility and task planning to adapt in various uneven environments. In this paper, we propose the design method and task planning of quadruped robot which can have top-bottom docking structure. The proposed quadruped robot is designed to adjust leg length using linear actuators and perform top-bottom docking and undocking using octagonal cone shaped docking module. Also, to stable walking and information gathering in the various environments, a geomagnetic sensor, PSD sensor, LRF sensor and camera. We propose an obstacle avoidance method and the topbottom docking algorithm of the two quadruped robots using linear actuator. The robot can overcome obstacles using adjusting leg length and activate the top-bottom docking function. The top-bottom docking robots of two quadruped robot can walk 4 legged walking and 6 legged walking, and use 4 arms or 2 arms the upper. We verified that the docking robots can carry objects using 4 leg of the upper robot.

• Journal of the Korean Institute of Intelligent Systems
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• v.21 no.6
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• pp.673-678
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• 2011

This paper analyzes the standing balance of four-legged robots which are useful for delivering objects or investigating of information. For this, we specify an effective model of general four-legged robots and propose a boundary condition based on the standing stability of the four-legged walking. To verify such a standing balance, we consider some exemplary free motions at the standing mode of the robot and discuss on the robot's balance margin. The analysis specified in this paper will be applicable for effective balancing control of various quadruped robotic walking.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.9 no.6
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• pp.1247-1252
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• 2005

Though a legged robot has a high terrain adaptability as compared with a wheeled robot, its moving speed is considerably low in general. For attaining a high moving speed with a logged robot, a dynamically stable walking is a promising solution. However, the energy efficiency of a dynamically stable walking is generally lower than the efficiency of a stable gait such as a crawl gait. In this paper, energy consumption of two walking patterns for a trot gait is simulated through modeling a quadruped walking robot named TITAN-VIII.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.24 no.6
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• pp.75-82
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• 2010

In this paper, we developed a new MSRDS(Microsoft Robotics Developer Studio) simulator for a quadruped pet robot with synchronization of virtual and real robots. By using this simulator, it is possible to reduce time and cost for gait and motion design and it will help for commercialization of service pet robots. In the research point of view, the simulator can be used to examine the model differences between the virtual and the real robots. Since this simulator implements the coordinated control of the virtual and real robots, it can be used as an internet game using two remote pet robots.

• 한국HCI학회:학술대회논문집
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• 2008.02a
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• pp.534-539
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• 2008

This paper is about intelligent hexapod robot for the support walking of the aged person. The robot using various sensors and small camera has various abilities of forward backward walking, turing left or right, control the speed of walking, avoiding the obstacles and detecting risky situation of fire or gas. To let the aged feel soft and safe walking, we used special servo motor and developed hexapod walking mechanism and effective algorithm.

• Journal of the Korean Society for Precision Engineering
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• v.30 no.10
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• pp.1023-1029
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• 2013

Water running animals such as basilisk lizards have an advantage of high-speed movement and high power efficiency on water; so researchers in robotic fields have been interested in the water running locomotion. This paper presents prototype-design and experimental study on the fourand six-legged water running robot. Based on the previously proposed quadruped water running robot, we assemble a hexapedal water running robot. The legs of the water running robot are designed based on four-bar parallel link for repeated motion along to pre-defined path. Stability performance of the quadruped and hexapedal water running robot are investigated by experiments on rolling criterion. As a result, hexapedal robot performs better stability than quadruped robot. Based on the hexapedal robot design, we are planning to optimize the position of legs and operating frequency.

• Journal of the Institute of Convergence Signal Processing
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• v.16 no.4
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• pp.168-174
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• 2015

The ultimate purpose of a walking robot is to move to a designated spot and to perform a necessary manipulation. To perform various manipulations for a walking robot, it should have some kind of an extra manipulator. However, if the manipulation task for the robot is simple enough, the robot can perform the task by using its legs. Among various kinds of walking robots, a hexapod walking robot has relatively many legs, so it has the advantage of stability and walking speed. So, a hexapod walking robot can perform simple manipulation task by using its one or two legs while maintaining stability by using the rest of legs. In this paper, we deal with a simple manipulation task of holding a ball. We formulate the task as a redundancy resolution problem and propose a method for obtaining an optimal solution.

• Proceedings of the Korean Information Science Society Conference
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• 2005.11b
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• pp.577-579
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• 2005

본 논문에서는 손 제스처를 사용한 2족 보행로봇 제어방법을 제안한다. 제안된 방법은 연속된 입력 영상으로부터 사용자의 손을 검출하기 위해, 피부색 정보와 Hue의 불변 모멘트 정보를 사용한다. 검출된 손 영역은 Active Contour Model를 사용하여 추적한다. 손 제스처를 인식하기 위해 Hue의 불변 모멘 정보로부터, 검출된 손의 모양을판단하고 그 결과를 미리 정해둔 심벌 중에 하나로 할당한다. 이렇게 연속적으로 할당된 심벌들은 HMM(Hidden Markov Model) 인식기를 통해 인식 되고 로봇 명령어를 출력하며, 출력된 명령어에 따라 로봇이 제어된다. 제안된 방법의 효율성을 증명하기 위해, 자체 제작한 2족 보행로봇(KAI)으로 6개의 손 제스처를 이용하여 사용자가 원격지에 있는 로봇의 보행을 제어하는 원격 로봇 보행 제어 시스템에 응용해 보았다. 실험 결과, $94\%$의 인식률을 보였다.