Indoor positioning navigation method and system for visually impaired people

An indoor positioning and navigation method technology, applied in navigation, surveying and mapping and navigation, navigation computing tools, etc., can solve the problems of being unable to live independently and not being able to meet the daily needs of the visually impaired, and achieve a good auxiliary effect

CN107328426AActive Publication Date: 2017-11-07SHENZHEN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-11-07

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Abstract

The invention provides an indoor positioning navigation method and system for visually impaired people. A user terminal executes the following steps: receiving of environment data: the environment data collected by an environment detecting unit is received; sending of a two-dimensional layout map request: the request for giving the two-dimensional layout map of a building is sent to a server; positioning: a current position of a user is calculated based on the two-dimensional layout map in combination with movement data of the user; navigation: an optimal route is calculated with a route planning algorithm in combination with the current position and the destination of the user, voice navigation is performed for the user, and during voice navigation, when the environment detecting unit detects an obstacle, obstacle data information sent by the environment detecting unit is received, and voice prompts the user to bypass the obstacle. The indoor positioning navigation method and system have the beneficial effects of being suitable for all kinds of user groups, particularly have a quite good assisting effect on the visually impaired population, and is worth applying and popularizing.
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Description

technical field

[0001] The invention relates to the technical field of indoor positioning and navigation, in particular to an indoor positioning and navigation method and system suitable for visually impaired persons. Background technique

[0002] At present, the number of visually impaired people in my country has exceeded 10 million, and this number is still increasing. There are so many visually impaired people, why do we see so few in our daily life? Because they really dare not go out. Almost all public facilities are not friendly to the visually impaired. Due to the unfriendly facilities and traffic, it can be said that it is difficult for the visually impaired to walk without someone to accompany them. Therefore, when they go out, they need someone to take them with them. This adds a lot of cost to going out, not just money cost. We should not only ask the government to continue to introduce more comprehensive policies and regulations, or to manufacture more prod...

Examples

Embodiment Construction

[0030] In the present invention, there are two types of users: providers and general users, and general users include visually impaired users.

[0031] The provider uses a handheld device to scan the interior of the building, obtains the corresponding two-dimensional layout map of the building and associates it with the MAC addresses of one or more WIFI routers of the building, and then operates the handheld device to connect the two The dimensional layout diagram and the associated MAC address are sent to the cloud server through the public network for storage.

[0032] Such as figure 1 As shown, the handheld device includes a mobile lidar system, WIFI module and 4G mobile communication module. The handheld device uses the mobile lidar to collect the internal structure data of the building, and uses the real-time positioning and layout reconstruction technology to obtain the indoor structure of the building. Two-dimensional layout diagram, and associate it with one or more W...