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Large-scale distributed user-oriented high-precision position broadcast service apparatus and method

A distributed and large-scale technology, applied in the field of satellite positioning and navigation, can solve problems such as large amount of data calculation, large server resource occupation, poor system stability, etc.

Inactive Publication Date: 2018-10-26
WUHAN NAVIGATION & LBS INC
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  • Abstract
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  • Application Information

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Problems solved by technology

[0009] The main purpose of the present invention is to provide a high-precision location broadcasting service device and method for large-scale distributed users, aiming to solve the processing capacity requirements of the data broadcasting system in the process of data broadcasting based on VRS technology in the prior art High, and due to the large amount of data calculation, resulting in poor system stability and technical problems that occupy a large amount of server resources

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  • Large-scale distributed user-oriented high-precision position broadcast service apparatus and method

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Embodiment Construction

[0046] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0047] refer to figure 1 , figure 1It is a schematic structural diagram of the first embodiment of the large-scale distributed user-oriented high-precision location broadcasting service device of the present invention.

[0048] In the first embodiment, the large-scale distributed user-oriented high-precision location advertisement service device includes: a data storage unit 1001 , a positioning data decoding unit 1002 , a data search unit 1003 and a data broadcast unit 1004 .

[0049] Wherein, the data storage unit 1001 is configured to divide the storage area based on the grid coordinate parameters of the service area covered by the ground-based augmentation system, and store the differential data provided by the ground-based augmentation system in the storage area.

[0050] It should be noted that the grid coordi...

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Abstract

The invention discloses a large-scale distributed user-oriented high-precision position broadcast service apparatus and method. According to the large-scale distributed user-oriented high-precision position broadcast service apparatus provided by the invention, a storage region can be divided according to different grid coordinate parameters in advance based on different application scenes, and corresponding differential data is stored; and by converting two-dimensional longitude and latitude into grid coordinate parameters of a character type, when a grid closest to a user is selected, distance calculation is converted into character string matching, so that the calculation amount of searching for the grid closest to the user is greatly reduced, the occupation of server resources is reduced, and the problem of poor system stability caused by high concurrency during access of massive users is further solved.

Description

technical field [0001] The invention relates to the technical field of satellite positioning and navigation, in particular to a high-precision location broadcasting service device and method for large-scale distributed users. Background technique [0002] The ground-based augmentation system (GABS) is a kind of reference station established on the ground, and the correction number is sent out in real time through the network or the radio station. After receiving the correction number, the user directly corrects the observation value, and finally can reach the centimeter level. Positioning and navigation technology with positioning accuracy. [0003] At present, in terms of broadcasting GABS data, a virtual reference station (Virtual Reference Stations, VRS) technology is generally used. The principle of VRS technology is that the ground-based augmentation system receives the observation data of each reference station in real time, and receives the rough coordinates sent by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G01S19/42
CPCG01S19/42
Inventor 郑璐于斌斌
Owner WUHAN NAVIGATION & LBS INC