Donghwa Jeong

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In this paper, we present a conceptual framework and a physical prototype of sensor-integrated geometric blocks (SIG-Blocks) for automated play-based assessment of cognitive and fine-motor skills. SIGBlocks enable remote and real-time monitoring of a person’s behavior and performance during play through integrated sensors and wireless communication(More)
This paper presents OrigamiBot-I, a thread-actuated origami robot, to demonstrate a physical application of an origami design for robotic manipulation and locomotion. The selected design can generate twisting and bending motions by pulling, pushing, or torsional force applied to the origami structure. Thread-based actuation also enables various shapes and(More)
This paper presents Tangible Geometric Games (TaG-Games) as a novel play-based assessment tool for measuring cognitive problem-solving skills and fine motor proficiency. TaG-Games are based on sensor-integrated geometric blocks (SIG-Blocks) and an interactive graphical user interface providing a means for real-time and remote monitoring of a player through(More)
This paper presents a tangible, computerized memory game, called Memorix. Memorix aims to measure the player’s spatial and working memory span by displaying geometric patterns on the tabletop platform and requiring the player to memorize and rebuild the patterns. The tangible game technology used for Memorix consists of a set of iSIG-Blocks with an(More)
This paper presents the SIG-Blocks system developed for automated cognitive assessment via tangible geometric games (TAG-Games). Computerized game administration and real-time cognitive and behavior assessments were realized by wireless self-synchronization in communication, decentralized hybrid-sensing, assembly and motion detection, and graphical(More)
Designing and planning of supply chain network (SCN) is one of the most important decisions to be made in dynamic business environment. Under today's dynamic circumstances, SCN is too complex to allow realistic models to be evaluated analytically. For this reason, we have developed a new simulator. This simulator provides most of the features needed to(More)
Collective behavior in swarm robotics explores various scenarios involving many robots communicating, sensing, and running simultaneously. This strategy aims to reduce the time and energy required and to improve the efficiency of completing complex tasks which are typically difficult to accomplish individually. This paper presents InchBot, a novel swarm(More)