Indoor positioning terminal, network, system and method

Abstract

The embodiment of the invention provides an indoor positioning terminal, network, system and method. The indoor positioning terminal comprises a storage, a camera and a controlling / positioning operation module, wherein the camera is used for capturing an image of indoor lighting devices with low exposure; the storage is used for storing data of an indoor positioning map, the data of the indoor positioning map comprise three-dimensional data information of the indoor electronic map and the indoor lighting devices, and the indoor electronic map and the indoor lighting devices share the same reference system; the controlling / positioning operation module is used for relatively matching the three-dimensional data of the indoor lighting devices with the captured image of the indoor lighting devices, and positioning the position, on the indoor electronic map, of the positioning terminal when the image is captured. According to the indoor positioning scheme, the indoor positioning terminal, network, system and method are suitable for indoor positioning of huge buildings, high in positioning accuracy, not prone to being disturbed, and capable of improving applicability of the technical scheme.

Description

technical field [0001] Embodiments of the present invention relate to a terminal, network, system and method for indoor positioning, especially a terminal, network, system and method for positioning by capturing images. Background technique [0002] Outdoor user location positioning and road navigation have been widely used, for example, outdoor positioning and navigation is realized through a Global Positioning Satellite System (GPS: Global Positioning Satellite System). However, the application of indoor positioning is still in its infancy, and there has been no technology that can be promoted on a large scale. [0003] Here is an example to introduce an indoor wireless positioning technology, which uses the signal strength of the Bluetooth base station for positioning. Bluetooth is a short-distance and low-power wireless transmission technology. The Bluetooth LAN access point installed indoors configures the network as a basic network connection mode based on multi-users...

AI Technical Summary

Problems solved by technology

However, the positioning accuracy of this technology will be significantly deteriorated under the wireless path without line-of-sight

In a complex space environment, or when the human body interferes with electromagnetic waves, it will also lead to a decrease in accuracy and stability

If the positioning terminal is in motion, the accuracy will further deteriorate

It is also easy to mistakenly locate to other rooms separated by a wall through Bluetooth wireless positioning technology

Generally, within a plane range of 100 meters × 100 meters, the positioning accuracy of Bluetooth wireless positioning is about 5 meters, which is not enough for some applications.

Images