| With the continuous progress and development of society,human society has become a comprehensive and complex group structure,in which the blind as a vulnerable group occupies a large proportion.Because of their own physical defects and the influence of the external environment,the blind people prefer the way of life at home and refuse to go out,so their free space is relatively reduced,and their life becomes monotonous.Even psychological tolerance is greatly weakened,and going out becomes both expected and harmful.In order to meet the needs of blind people to travel without obstacles,the pursuit of barrier.free design has become a development trend in the new era.The concept of barrier.free design of blind walking products not only realizes the barrier.free travel of blind people,but also gives confidence and support to blind people at the psychological level,so that they can realize their own value and provide guarantee for safe travel.In this paper,the product users are positioned on the blind group,which takes solving some practical difficulties faced by the blind group in outdoor travel activities as the starting point,and takes the blind auxiliary products which can assist the blind group to travel safely as the main research content.Through the form of questionnaire survey,literature review,case analysis and other forms to obtain the needs and suggestions of users on the products,in addition to the blind this special group of psychological characteristics,physiological characteristics and behavioral mechanism of research and analysis,to find the real problems encountered by this group in travel.Under the concept of environment perception and barrier.free design,the problems and shortcomings of the existing blind walking aid products in the market are improved and innovated,and the form of barrier.free perception experience of blind walking aid products is summarized.The principle and design method of barrier.free design of blind walking aid products are put forward.Then,the general scheme model is constructed according to the proposed barrier.free design principle and method,and the feasibility of the principle and method is verified by the design model.It is hoped that the principles and methods of barrier.free design proposed in this paper can provide useful theoretical reference,research direction and design ideas for the design and development of blind mobility aids products in the future. |