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Multi-terminal multi-application differential data broadcasting system and method

A differential data, multi-application technology, applied in the field of satellite navigation, can solve the problem of large network traffic consumption of terminal equipment, and achieve the effect of saving network bandwidth and traffic

Active Publication Date: 2017-06-30
QIANXUN SPATIAL INTELLIGENCE INC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

It is possible that the differential data required by each application is in the same format, so that the terminal device consumes a lot of network traffic

Method used

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  • Multi-terminal multi-application differential data broadcasting system and method
  • Multi-terminal multi-application differential data broadcasting system and method
  • Multi-terminal multi-application differential data broadcasting system and method

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Embodiment Construction

[0029] Hereinafter, the present invention will be further described in conjunction with the drawings and embodiments.

[0030] The multi-terminal multi-application differential data broadcasting system of the present invention is as follows: figure 1 As shown, it includes a differential broadcast platform 12, at least one reference station 11, and at least one terminal device 13; the reference station 11 has known precise coordinates, receives satellite signals, calculates the distance correction number from itself to the satellite, and uses the difference The data is uploaded to the differential broadcast platform 12 in a unified manner; the differential broadcast platform 12 aggregates the differential data uploaded by all reference stations 11; , and broadcast the differential data after intelligent aggregation to the terminal device 13; the terminal device 13 needs to receive the differential data for precise positioning.

[0031] figure 2 It is a system architecture di...

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Abstract

The invention provides a multi-terminal multi-application differential data broadcasting system which comprises a differential broadcasting platform, at least one base station and at least one terminal device. The terminal device comprises at least one application. The differential broadcasting platform aggregates differential data uploaded by the base station. The differential broadcasting platform carries out intelligent aggregation operation on the differential data needed by the terminal device, and broadcasts the differential data after intelligent aggregation to the terminal device. After the terminal device receives the broadcasted differential data, scheduling and distribution are carried out according to the actual multi-application situation. According to the invention, unified processing is carried out on the data to be broadcasted; the differential broadcasting platform intelligently evaluates the differential data, and then a client carries out scheduling and diverging; and network bandwidth and traffic can be saved.

Description

technical field [0001] The invention relates to the technical field of satellite navigation, in particular to a multi-terminal multi-application differential data broadcasting system and method. Background technique [0002] The basic principle of differential positioning technology is: the reference station (also known as base station or reference station) with known precise coordinates calculates the distance correction number from itself to the satellite, and uploads it to the data center in a unified manner. The ground augmentation system composed of the reference station and the data center (differential broadcast platform). The differential broadcast platform sends this data to the terminal equipment that needs to be positioned in real time. While performing satellite observation, the terminal equipment also receives the differential data sent by the differential broadcast platform, and corrects its positioning results, thereby improving the positioning accuracy. The...

Claims

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Application Information

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IPC IPC(8): H04W28/06H04W28/08
CPCH04W28/06H04W28/065H04W28/08
Inventor 周睿
Owner QIANXUN SPATIAL INTELLIGENCE INC
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