High precision continuous positioning system and method applied to popular applications

A high-precision, popular technology, applied in the field of satellite positioning and navigation, can solve the problems of large bandwidth consumption and achieve the effect of simple implementation, promotion of development, and reduction of data volume

Inactive Publication Date: 2015-11-11
上海北斗卫星导航平台有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the invention is applicable to the application scenarios of discontinuous positioning; for the application requirements of continuous positioning such as navigation, the positioning terminal usually needs to generate a positioning result per second; if the on-demand positioning method of the invention is adopted, the continuous positioning terminal and the position enhancement system Need to interact once per second, which consumes a lot of bandwidth

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  • High precision continuous positioning system and method applied to popular applications
  • High precision continuous positioning system and method applied to popular applications

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Embodiment 1

[0054] Such as figure 1 As shown, this embodiment includes: a differential service system and a continuous positioning terminal; wherein: the differential service system collects the original satellite observation data of the ground reference station, processes it, and calculates the pseudo-range differential data; the continuous positioning terminal applies for the pseudo-range differential data The data application is submitted to the differential service system under the trigger of the timer, and the differential service system responds to the application and sends the pseudo-range differential data to the continuous positioning terminal; the continuous positioning terminal uses the pseudo-range differential data for settlement and obtains the positioning result.

[0055] The differential service system includes: an active and standby data collection subsystem, an active and standby computing subsystem, a service publishing subsystem, and an active and standby load balancing...

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Abstract

The invention provides a high precision continuous positioning system and method applied to popular applications. The system comprises a differential service system and a continuous positioning terminal, wherein the differential service system is connected with a ground reference station and used for obtaining original observation data of a satellite, pseudo-range differential data is obtained through computation, the continuous positioning terminal regularly submits a data application to the differential service system to obtain the pseudo-range differential data, and a precise positioning result is obtained through a pseudo-range differential algorithm. The invention can dynamically adjust and obtain the frequency of differential data, initiates an application at the right moment, and provides the differential data to the continuous positioning terminal by means of the differential service system. Under a precondition that availability is ensured, in the usage scene of continuous positioning, the data size is remarkably reduce, the usage cost is greatly reduced, and the application demand for high precision positioning in the popular application field such as navigation can be met.

Description

technical field [0001] The present invention relates to a system and method in the technical field of satellite positioning and navigation, in particular to a high-precision continuous positioning system and method for public applications based on a ground reference station augmentation system and differential positioning technology. Background technique [0002] The basic principle of high-precision differential positioning technology is: according to the known precise coordinates of the ground reference station of the ground reference station augmentation system, the distance correction number from the ground reference station to the satellite is calculated, and the data is sent by the ground reference station in real time. While performing satellite observation, the terminal also receives the differential data sent by the ground reference station, and corrects its positioning results, thereby improving the positioning accuracy. [0003] The requirements of mass applicatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/42
CPCG01S19/42
Inventor 陈大吾朱峰孙长虹余张民贾瑞伟朱晓婷
Owner 上海北斗卫星导航平台有限公司
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