Indoor pseudo satellite positioning system and indoor pseudo satellite positioning method

Abstract

The invention discloses an indoor pseudo satellite positioning system and an indoor pseudo satellite positioning method. The indoor pseudo satellite positioning system provided by the invention comprises a signal transceiver, a processor, a plurality of virtual satellite nodes and a mobile terminal, wherein the plurality of virtual satellite nodes are dispersedly arranged at suitable positions indoor, and disposed on an indoor LED lamp. The indoor pseudo satellite positioning method provided by the invention comprises the following steps: acquiring a first signal transmitted by a satellite, maintaining a local time of virtual satellite nodes according to the time of the received first signal; controlling each virtual satellite node to transmit a second signal according to the first signaland the local time; and determining its coordinates by a mobile terminal based on the received second signal. The indoor pseudo satellite positioning system and an indoor pseudo satellite positioningmethod provided by the invention realize functions such as indoor positioning and navigation on an ordinary intelligent terminal since GPS signals can be received indoor, and can also well solve the problems such as construction installation and post-maintenance since the virtual satellite nodes are simultaneously combined with LED lamps.

Description

technical field [0001] The invention relates to the technical field of indoor positioning and navigation, in particular to an indoor pseudolite positioning system and method. Background technique [0002] With the continuous development of wireless communication network technology, navigation technology is becoming more and more popular. At present, there is an urgent demand for indoor navigation and positioning, especially in the basements of large commercial buildings, convention centers and other densely populated areas. It is necessary to provide users with navigation and positioning services similar to outdoors in indoor confined spaces. [0003] However, existing GNSS positioning systems such as GPS are blocked by buildings, so that the signals cannot penetrate the walls of buildings, making these positioning systems basically unusable indoors. Some existing indoor positioning technologies can theoretically realize indoor positioning indoors where outdoor GPS cannot c...

AI Technical Summary

Problems solved by technology

[0003] However, existing GNSS positioning systems such as GPS are blocked by buildings, so that the signal cannot penetrate the walls of buildings, making these positioning systems basically unusable indoors.

Some existing indoor positioning technologies can theoretically realize indoor positioning indoors where outdoor GPS cannot cover, but in fact, they cannot meet the actual needs and achieve a good service experience.

[0004] In addition, these positioning systems have some problems in construction, installation, power supply, maintenance, etc. Taking power supply as an example, some positioning systems use batteries, which brings great challenges to subsequent daily maintenance, and some positioning systems use dedicated power supplies , which will increase additional costs and bring many difficulties to site construction

[0005] In view of the problems existing in the indoor positioning technology in the prior art, it is necessary to provide an indoor positioning system and method that can solve the problems of being unable to receive GPS and other signals indoors, and unable to realize positioning and navigation functions.

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