Research on Intention Flexible Mapping Algorithm for Elderly Escort Robot

Xiaoyu Qiu,Xiaohui Yang,Ya Hou,Zhiquan Feng,Tao Xu,Xin Zhang,Pengwei Wang

doi:10.1155/2021/5541269

Abstract

With the development of science and technology and the intensification of the aging of the world’s population, elderly care robots have begun to enter people’s lives. However, the current elderly care system lacks intelligence and is just a simple patchwork of some traditional elderly products, which is not conducive to the needs of the elderly for easy understanding and easy operation. Therefore, this paper proposes a flexible mapping algorithm (FMFD), that is, a gesture can correspond to a flexible mapping of multiple semantics in the same interactive context. First, combine the input gesture with the surrounding environment to establish the current interactive context. Secondly, when the user uses the same gesture to express different semantics, the feature differences formed due to different cognitions are used as the basis to realize the mapping from one gesture to multiple semantics. Finally, four commonly used gestures are designed to demonstrate the results of flexible mapping. Experiments show that compared with the traditional gesture-based human-computer interaction, the proposed flexible mapping scheme greatly reduces the number of gestures that users need to remember, improves the fault tolerance of gestures in the human-computer interaction process, and meets the concept of elderly caregiver robots.

Highlights

With the continuous development and progress of science and technology and medical care, my country’s aging population has continued to grow simultaneously, and elderly care has become a social problem
On the other hand, compared with other flexible mapping algorithms, the algorithm proposed in this paper reduces the number of required gesture features, realizes a gesture expressing multiple semantics only through the two features of finger curvature and gesture movement direction, improves the real-time performance of human-computer interaction, and reduces the time complexity
In order to verify that the same gesture can express different semantics and whether the proposed algorithm can successfully perform flexible mapping, we went to the elderly activity center for in-depth research

Summary

Introduction

With the continuous development and progress of science and technology and medical care, my country’s aging population has continued to grow simultaneously, and elderly care has become a social problem. E intelligent escort robot is a multifunctional service robot, which mainly assists the life of the elderly, with functions such as service, safety monitoring, human-computer interaction, and entertainment. Except being able to move, their operation methods and functions are not innovative and do not meet the requirements of ease of use for the elderly [2]. Some escort robots lack intelligent interactive functions, and the anti-interference of voice recognition is not strong; especially, in a more chaotic environment, the recognition accuracy is very low [3]. At the same time, when elderly people interact with robots with gestures, we noticed a problem. For the elderly, too many gesture commands will cause a serious memory burden, which is not conducive to the interaction between the elderly and the escort robot, and does not meet the requirements for ease of operation

Objectives

Results

Conclusion