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Indoor positioning information push method based on GNSS satellite signal

A satellite signal and information push technology, applied in satellite radio beacon positioning systems, measuring devices, instruments, etc., can solve problems such as inability to locate, slow speed, and impact on positioning effects, and achieve improved positioning effects, high accuracy, and signal-to-noise. than the improved effect

Active Publication Date: 2018-01-19
XI AN JIAOTONG UNIV
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Problems solved by technology

However, since the Wi-Fi signals in the space we live in are very complicated, this will inevitably have a significant impact on the positioning effect of this method, and may even lead to the inability to locate
And Wi-Fi positioning is realized through the network layer, the speed is relatively slow
So to sum up, the final positioning effect based on Wi-Fi indoor positioning technology is not ideal.

Method used

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  • Indoor positioning information push method based on GNSS satellite signal
  • Indoor positioning information push method based on GNSS satellite signal
  • Indoor positioning information push method based on GNSS satellite signal

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] A positioning information push method for indoor positioning and based on global satellite navigation system GNSS satellite signals, comprising the steps of:

[0025] Take GPS as an example:

[0026] (1) Location recognition of the user to be tested: install a wide-angle camera device at a suitable location in the room to be arranged, and the shooting range of the camera device is required to cover the entire room. Taking the camera equipment as the origin of the coordinate system, divide the top view of the room into several areas in a two-dimensional grid. The division accuracy depends on the indoor positioning accuracy requirements. The geometric center of each area corresponds to a two-dimensional coordinate value, such as figure 1 shown. The user's position recognition adopts the moving target detection technology (for e...

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Abstract

Provided is an indoor positioning information push method based on GNSS satellite signals. The method includes the following steps: (1) arranging a camera device indoors, taking the camera device as acoordinate system original point to divide a to-be-measured room into planar grid coordinate systems, and utilizing a moving object detection technology to obtain two-dimensional coordinate values ofa user in the room; (2) obtaining an actual geological coordinate, time service information and PPS synchronous second pulse information of an antenna through the indoor GNSS satellite signal reception antenna, and combining the two-dimensional coordinate values of the user and the geometrical parameters of the room to perform calculation and obtaining actual geological coordinate values of the user; (3) conducting regeneration of GNSS satellite signals; and (4) through the intelligent antenna technology, forming a wave beam pointing the user and broadcasting the GNSS satellite signals in a corresponding position so that a positioning apparatus of the user resolves the broadcasting position. The GNSS satellite signals are taken as a medium to perform indoor positioning. The method has theadvantages that the precision is high, the speed is fast and a reception apparatus does not need to change or add other pieces of hardware.

Description

technical field [0001] The invention belongs to the technical field of indoor positioning, in particular to a method for pushing indoor positioning information based on GNSS satellite signals. Background technique [0002] Since satellite signals are weak when they reach the ground and cannot penetrate buildings, it is impossible to use satellite signals for positioning in indoor environments. Therefore, in order to realize indoor positioning, an indoor positioning method is needed. Today's more common indoor positioning technologies include Wi-Fi technology, Bluetooth technology, infrared technology, ultra-wideband technology, etc. They each have their own advantages and disadvantages, such as low cost but unsatisfactory positioning effect, or good positioning effect but demanding hardware requirements. As far as the latter is concerned, although it has good positioning accuracy, it is obviously not feasible to add new hardware to mobile devices such as mobile phones in or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/42G01S19/27
Inventor 王文杰田宇江睿文
Owner XI AN JIAOTONG UNIV
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