As a type of atherosclerotic lesion affecting the peripheral vascular system, arterial disease (PAD) has an elevated disability rate and seriously affects patients' quality life. Estimated pulse wave velocity (ePWV) is alternative indicator closely linked with atherosclerosis. However, link between ePWV PAD unelucidated.

This paper proposes a robotic walker system with standing and walking assistance function. Our focuses on domestic use for aged person who needs nursing in their daily life. key ideas are two topics. The first topic is combination of function In previous works, many devices specialized only "standing-up operation" or "walking operation". However, life, elderly standing, seating continuously by same device. developing can support both operations small sized mechanism low cost use. second...

This paper proposes a robotic walker system with standing, walking and seating assistance function. Our focuses on domestic use for aged person who needs nursing in their daily life. key ideas are two topics. The first topic is combination of standing function In previous works, many devices specialized only ¿standing-up operation¿ or ¿walking operation¿. However, life, elderly people need continuously by the same device. Therefore, our developing can support both operations small sized...

In this paper, an adaptive sliding mode controller is designed for the omnidirectional mobile robot with four Mecanum wheels to track trajectory. The wheel has been widely used in factories, hospitals, families and other workspaces because of its ability. Consider dynamic model based on uncertainties external disturbances, a neural network control (NNASMC) strategy proposed, which combines techniques Radial Basis Function (RBF) method method. Finally, some simulation experiments are...

Multi-robotic system is widely used in exploring large-scale unknown environment and performing the complex tasks. This paper presents a method of local map merging for using RTM as communication platform. We integrate Scale-Invariant Feature Transform (SIFT) feature matching information with iterative closest point (ICP) algorithm to realize merging. use USARSim simulation platform topological which mobile robots moving proposed method. The details architecture gives some experiments verify...

The walker with power assistance for standing we propose focuses on home use those requiring daily assistance. Our key concepts involve (1) a new manipulator four parallel linkages using smaller actuators and rigid lighter than general manipulators, providing compact at low cost; (2) combination of force position control. Based the user’s posture while standing, our proposed control selects appropriate reference based typical by nursing specialists realizing natural conductance is verified...

This paper proposes a walker system with power assistance device for standing up motion. Our focuses on family use aged person who needs nursing in their daily life. key ideas are two topics. The first topic is new manipulator mechanism four parallel linkages. proposed requires only smaller actuators and realizes rigid structure lighter linkages comparing general manipulator. Thus, we can design our compactly low-cost using mechanism. second the combination of force position control....

In electroencephalogram (EEG) brain-computer interfaces (BCI), the performance of systems deteriorates especially when number channels is larger. Therefore, it important to select suitable for classification different motor imagery tasks. this paper, optimal combination selection method presented. Based on l <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sub> norm common spatial pattern (CSP) features, every channel' contribution score...

In this paper, we propose a novel view-invariant gait authentication method based on silhouette contours analysis and view estimation. The approach extracts Lucas-Kanade flow image head shoulder mean shape (LKGFI-HSMS) of human by using the Lucas-Kanade0s procrustes (PSA). LKGFI-HSMS can preserve dynamic static features sequence. between person camera is identified for selecting target's feature to overcome variations. similarity scores LKGFI HSMS are calculated. product rule combines two...

This paper proposes a novel monocular vision-based SLAM (Simultaneous Localization and Mapping) algorithm for mobile robot. In this proposed method, the tracking mapping procedures are split into two separate tasks performed in parallel threads. thread, ground feature-based pose estimation method is employed to initialize constraint moving of And an initial map built by triangulating matched features further procedure. epipolar searching procedure utilized finding matching features. A...

Because the elderly population is growing while number of people to take care them declining, aging problem becoming an increasingly important social issue. Thus, developing inexpensive support system for these staying alone at home or small-scale distributed facilities particularly important. The paper proposes a basic platform design network telecare robotic systems using CORBA as communication architecture, which has high scaling and inter-operating ability that allows different groups...

Learning the Bayesian networks (BNs) structure from data has received increasing attention. Many heuristic algorithms have been introduced to search for optimal network that best matches given training set. To further improve performance of ant colony optimization (ACO) in learning BNs structure, this paper proposes a new improved coevolution ACO (coACO) algorithm, which uses pheromone information as cooperative factor and differential evolution (DE) strategy. Different basic ACO, coACO...

This paper presents a novel improved RANSAC algorithm based on probability and DS evidence theory to deal with the robust pose estimation in robot 3D map building. In this proposed algorithm, parameter model is estimated by using random sampling test set. Based model, all points are tested evaluate fitness of current their probabilities updated total formula during iterations. The maximum size inlier set containing point taken into account get more reliable evaluation for theory....

Aiming at the poor effect of deep learning algorithm on small objects detection, SSD object detection method based feature fusion is proposed. The reasons for low rate and robustness classical methods are analysed; through theoretical analysis comparative experiments, characteristic layer was shallow layers with high resolution strong semantics fused structure; finally, a complete structure designed residual block to increase width depth network. contrast experiment PASCAL VOC dataset...

In frontier-based exploration, the primary work is to iteratively detect frontiers and generate frontier points guide mobile robot explore unknown environment. However, most detection algorithms by processing entire map data. This a time-consuming process. this work, we present novel approach dynamically safe reachable points. The proposed examines only new coming laser data extract coarse then refines them global optimal combining with topological map. Only current information are...

This paper presents an effective Simultaneous Localization and Map-Building (SLAM) technique for indoor mobile robot navigation based on laser scan-matching Rao-Blackwellized Particle Filter (RBPF). Although the Extended Kalman (EKF) solution exhibits some desirable properties, associated geometric feature map itself fails to cope with senor noise mingled in incoming reading unable serve environment absent of such features as straight lines corners. Compared FastSLAM, main advantage our work...

Localization is one of the most important fundament for mobile robot. A localization system with low cost, easy accomplishment, simplicity, effectiveness and robustness aim researchers all time. Here, we proposed a novel method robot using ID tag Web camera. In our method, path map in an indoor environment expressed node tree, every represented two landmarks: card same colour. Pairs landmarks are affixed to ceiling distinct locations, middle point pair indicates absolute position or because...

In this paper, a novel method of obstacle recognition and localization for mobile robots using radio frequency identification (RFID) technology stereo vision is proposed. It inexpensive, flexible easy to use in practical environments. As information about the obstacles or environment can be written ID tags, proposed detect easily quickly compared with other methods. RF not so stable, Bayes rule was introduced calculate probability where tag exists order improve accuracy localizing tags. Then...

This paper proposes a robotic walker system with standing, walking and seating assistance function. Our focuses on domestic use for aged person who needs nursing in their daily life. key ideas are two topics. The first topic is combination of standing function In previous works, many devices specialized only "standing-up operation" or "walking operation". However, life, elderly people need continuously by the same device. Therefore, our developing can support both operations small sized...

We propose an effective localization and map building method for mobile robot using a monocular camera Laser Range Finder (LRF). To compensate the insufficient information gathered by LRF, we improved state of art vision-based SLAM algorithm so-called parallel tracking mapping (PTAM) system which uses optimized implementation with high accuracy, integrate laser scanning data into local combination approach. A reliable spatial model is produced path planning or obstacle avoidance. Compared...