INDOOR POSITIONING AND NAVIGATING METHOD AND SYSTEM SUITABLE FOR PERSON WITH VISUAL IMPAIRMENT

摘要

Provided are an indoor positioning and navigating method and system suitable for a person with visual impairment. A user terminal executes the following steps: an environment data receiving step for receiving environment data collected by an environment detection unit; a two-dimensional layout diagram request sending step sending a request to a server for requesting the provision of a two-dimensional layout diagram of a building; a positioning step calculating the current position of a user by means of the two-dimensional layout diagram in conjunction with movement data of the user; and a navigating step calculating an optimal path by using a path planning algorithm in conjunction with the current position of the user and a destination, performing voice navigation for the user, and during the process of voice navigation, receiving, when the environment detection unit detects an obstacle, obstacle data information sent by the environment detection unit, and prompting the user to avoid the obstacle by way of voice. The beneficial effects of the present invention are that the present invention is suitable for various user groups, particularly playing a good assistance effect for people with visual impairment, and has value for promotion and application.