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In order to solve poor coordination between the exoskeleton and the human leg, this article analyzed the spatiotemporal characteristics of lower limb motion using data collection from human walking gait experiments. According to the macro- and micro-motion mechanisms of the knee joint, six knee exoskeleton configurations were proposed. Combined with the analysis of gait characteristics, mathematical models for lower limb kinematics and dynamics were established and verified with numerical simulation. Using human–machine coupling simulation experiments, different knee exoskeleton devices were simulated for wear, and a configuration of the exoskeleton mechanism compatible with human knee motion was selected, which improved human–machine adaptability and coordination. This study provides a new method for studying adaptive knee exoskeletons.

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Formal techniques have been used to analyze a variety of properties of interactive behaviour in a number of systems. To have a better understanding of the implicit of the interactive behaviour, it is necessary to find a general method to describe the task. In this study, we proposed a formal model to illustrate the implicit task. We validated the effect of this model by an experiment in the simulated coach bus station by receiving transition information by the holder held device. This paper analyses the whole system, the rooms, the public displays, the mobile devices and the timeliness of information in the system. The model made the interactive process clearer and provided a basic framework to study the related issues of orientation in the interactive system in the future.

The purpose of this article is to design and study the smart cognitive training products for the elderly.This paper mainly studies how to prevent and improve the cognitive decline of the elderly in the market,analyzes the current situation and problems of the products in the market,studies the needs of users, finds out the functional needs, emotional needs and interactive experience needs of users, and further designs the intelligent cognitive training which is helpful to the cognitive training of the elderly according to the research result.

Abstract. In order to introduce the user needs into the improved design of HMI (man-machine interface) quickly and reasonably, Be intended for Manned Capsule HMI, the particular field of engineering technology. A product design method and QFD technology based on information entropy is proposed. Aimed at the design characteristics of HMI components, using the QFD technical and to guide the design process of the man-machine interface, through information entropy theory to determine the customer requirements in quality function deployment. Research shows this method can reduce the subjective judgment in the process of HMI design, and through the QFD technical and information entropy theory can enhance the effectiveness and objectivity.