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Beidou RNSS (radio navigation satellite system) based High-precision positioning method, device and system

A technology of positioning device and positioning method, which is applied in satellite radio beacon positioning system, measuring device, radio wave measuring system, etc., can solve problems such as inability to achieve positioning and positioning device cannot achieve high-precision positioning, and achieve accurate results

Inactive Publication Date: 2015-07-29
北斗导航科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the technical problem to be solved by the present invention is that the positioning device based on Beidou RNSS in the prior art cannot realize high-precision positioning, and when the Beidou RNSS satellite is out of lock, the positioning function cannot be realized

Method used

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  • Beidou RNSS (radio navigation satellite system) based High-precision positioning method, device and system
  • Beidou RNSS (radio navigation satellite system) based High-precision positioning method, device and system
  • Beidou RNSS (radio navigation satellite system) based High-precision positioning method, device and system

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Experimental program
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Embodiment 1

[0041] This embodiment provides a high-precision positioning method based on Beidou RNSS, such as figure 1 shown, including the following steps:

[0042] S1: Obtain the auxiliary positioning information V sent by the auxiliary module trans . Preferably, the auxiliary positioning information V trans is the acceleration information.

[0043] S2: According to the valid location information P obtained by Beidou RNSS at the last moment ‘ with the auxiliary positioning information Vtrans Obtain the first position information P trans .

[0044] S3: Determine whether the Beidou RNSS has acquired the second location information P RNSS ; If obtained, go to step S4, otherwise go to step S5.

[0045] S4: According to the first location information P trans and the second position information P RNSS Obtain the current position information P.

[0046] S5: directly adopting the first position information P trans As the current position information P.

[0047] In step S5, there are...

Embodiment 2

[0050] This embodiment provides a high-precision positioning device based on Beidou RNSS, such as figure 2 As shown, it includes a data acquisition unit 101, which acquires the auxiliary positioning information V sent by the auxiliary module trans . The auxiliary positioning information V trans is the acceleration information.

[0051] The analysis unit 102, according to the valid position information P obtained by the Beidou RNSS at the last moment ‘ with the auxiliary positioning information V trans Obtain the first position information P trans . The moving distance can be obtained according to the acceleration information and the time interval from the previous moment, and the first position information can be obtained by using the moving distance and the valid position information at the previous moment.

[0052] Judging unit 103, judging whether the Beidou RNSS has acquired the second location information P RNSS ;

[0053] The current location acquisition unit 10...

Embodiment 3

[0057] This embodiment provides a high-precision positioning system based on Beidou RNSS, such as image 3 As shown, it includes a power supply module 8, which supplies power for each module in the system. The power supply module 8 is divided into an AC-DC power supply module and a DC-DC power supply module, which can convert AC 220V AC power into 5V and 3.3V DC power supplies. Supply power to each module separately. The power module 8 is integrated with overcurrent protection circuit, EMI filter circuit, rectification filter circuit, 2500V isolated voltage converter, output short circuit, overload, and internal overheat protection circuit to provide pure and safe DC power for the system. It also includes the positioning device 1 described in Embodiment 2, and:

[0058] Antenna 2, sending the second position information P RNSS to the positioning device.

[0059] Auxiliary module 4, sending auxiliary positioning information V trans to the positioning device.

[0060] Data ...

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Abstract

The invention provides a Beidou RNSS (radio navigation satellite system) based High-precision positioning method, device and system. On the basis that the original Beidou RNSS positioning information is utilized, auxiliary positioning information determined by an auxiliary module is added. First position information Ptrans can be acquired according to effective position information P' acquired by the Beidou RNSS at the previous moment and the auxiliary positioning information Vtrans. When the Beidou RNSS can work normally, in other words, when the positioning information of the Beidou RNSS can be acquired, the final position information is obtained by computation by combining the positioning information. Therefore, the results are more accurate than those of a mode only adopting the Beidou RNSS to acquire the position information. Besides, even if the Beidou RNSS satellite is in a loss-of-lock state, the effective position information P' acquired by the Beidou RNSS at the previous moment and the auxiliary positioning information can be utilized to acquire the position information.

Description

technical field [0001] The invention relates to the technical field of positioning methods, in particular to a high-precision positioning method, device and system based on Beidou RNSS. Background technique [0002] Existing positioning devices based on Beidou RNSS (Radio Navigation Satellite System) only rely on the positioning information of the Beidou satellite navigation system to determine the current position. [0003] The position accuracy measured by this type of positioning device is directly determined by the positioning information received by the Beidou RNSS navigation and positioning information processing module, and it is difficult to achieve fast and high-precision positioning; when the Beidou RNSS satellite is out of lock, the device cannot receive the correct location information, the positioning function cannot be realized. Contents of the invention [0004] For this reason, the technical problem to be solved by the present invention is that the positio...

Claims

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Application Information

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IPC IPC(8): G01S19/47G01C21/16
CPCG01S19/47G01C21/165
Inventor 张鼎李新张庆文刘晓文武志东胡太强曹乐平
Owner 北斗导航科技有限公司