Design Research Of Intelligent Electric Wheelchair For Safe Obstacle Avoidance For The Elderly

In China,the aging phenomenon is increasing,and more and more elderly people with reduced mobility will use wheelchairs.For the elderly,wheelchairs are a very important means of transportation for the elderly,and they are also important ways for the elderly to live daily activities: socializing,shopping and so on.This requires the elderly to provide safer and more convenient travel conditions,travel tools intelligent can help the elderly to solve the problems in travel,so the study of the elderly intelligent wheelchair design method to improve the quality of life of the elderly has a very important practical significance.In the process of repeated investigation and research,it was found that there are many problems in the mobility tools used by the elderly when they go out,and the target group of specific users in this process is the elderly with inconvenience in lower limb activities or lower limb loss of function,the environment used is outdoor,and the main functions are safe obstacle avoidance,voice interaction,and mechanical health exercise.Based on the physical and psychological characteristics of the elderly,this project is based on the relevant theories of intelligent wheelchair human-machine design,and uses computer-aided design methods to study safety and intelligence.This paper designs the external dimensions of wheelchairs based on the human body size data of the elderly.Then study the size and range of activity of the elderly in the sitting state,combined with the special psychological characteristics of the elderly,starting from the most basic needs of the elderly to use wheelchairs to travel,combined with intelligent electronic modules,mechanical movement structures,to realize the design of safe intelligent wheelchairs for the elderly,and also consider the problem of electric wheelchair out electric energy capacity,in the case of insufficient electric energy,mechanical movement can be used to drive the wheelchair,and it is also used as a way for the elderly to exercise the upper limbs.