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Although many technological products for the blind have been created in the intelligent and the digital age, guide dogs are irreplaceable options in supporting blind travel, both bodily and psychologically. However, there are nonetheless some drawbacks in the way guide dogs assist in travel. In order to make up for the shortcomings of guide dogs, optimize the travel experience and ensure the safety of blind people, the smart guide dog harness (“E-guide”) based on image recognition technology, communication technology, GIS positioning technology, etc. was designed. In order to ensure that the design of the smart guide dog harness is practicable and implementable, first, 4 user pain points in the process of guide dog-assisted blind travel are obtained through various research methods. 16 basic requirements of guide dogassisted blind travel based on the user pain points is compiled. Afterwards, a two-dimensional questionnaire based on the “Kano Model” was created based on the above 16 travel requirements, and the blind people assessed their satisfaction based on each travel requirement. The results of the questionnaire were statistically and analytically analyzed according to the two-dimensional attribute classification approach based on “Kano Model” to obtain the requirement attribute for each travel requirement. Then, the Better-Worse analysis was used to transform each requirement attribute into a quantitative requirement index, so as to clarify the travel requirements of guide dog-assisted blind travel that need to be satisfied as a priority, and provide guidance and reference for the design and research of smart guide dog harness. Finally, a simulation experiment was conducted with and without the “E-guide” to assist blind people to travel. The travel period and heart rate changes of blind people traveling were tested. The results showed that “E-guide” can effectively improve the physical and mental satisfaction of guide dogs in assisting blind people to travel.
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